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| <section id='main' class="content"><pre class="line-numbers"><span id="1"> 1</span> |
| <span id="2"> 2</span> |
| <span id="3"> 3</span> |
| <span id="4"> 4</span> |
| <span id="5"> 5</span> |
| <span id="6"> 6</span> |
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| <span id="10"> 10</span> |
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| <span id="12"> 12</span> |
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| <span id="22"> 22</span> |
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| <span id="24"> 24</span> |
| <span id="25"> 25</span> |
| <span id="26"> 26</span> |
| <span id="27"> 27</span> |
| <span id="28"> 28</span> |
| <span id="29"> 29</span> |
| <span id="30"> 30</span> |
| <span id="31"> 31</span> |
| <span id="32"> 32</span> |
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| <span id="34"> 34</span> |
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| <span id="46"> 46</span> |
| <span id="47"> 47</span> |
| <span id="48"> 48</span> |
| <span id="49"> 49</span> |
| <span id="50"> 50</span> |
| <span id="51"> 51</span> |
| <span id="52"> 52</span> |
| <span id="53"> 53</span> |
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| <span id="56"> 56</span> |
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| <span id="59"> 59</span> |
| <span id="60"> 60</span> |
| <span id="61"> 61</span> |
| <span id="62"> 62</span> |
| <span id="63"> 63</span> |
| <span id="64"> 64</span> |
| <span id="65"> 65</span> |
| <span id="66"> 66</span> |
| <span id="67"> 67</span> |
| <span id="68"> 68</span> |
| <span id="69"> 69</span> |
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| <span id="139"> 139</span> |
| <span id="140"> 140</span> |
| <span id="141"> 141</span> |
| <span id="142"> 142</span> |
| <span id="143"> 143</span> |
| <span id="144"> 144</span> |
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| <span id="176"> 176</span> |
| <span id="177"> 177</span> |
| <span id="178"> 178</span> |
| <span id="179"> 179</span> |
| <span id="180"> 180</span> |
| <span id="181"> 181</span> |
| <span id="182"> 182</span> |
| <span id="183"> 183</span> |
| <span id="184"> 184</span> |
| <span id="185"> 185</span> |
| <span id="186"> 186</span> |
| <span id="187"> 187</span> |
| <span id="188"> 188</span> |
| <span id="189"> 189</span> |
| <span id="190"> 190</span> |
| <span id="191"> 191</span> |
| <span id="192"> 192</span> |
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| <span id="202"> 202</span> |
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| <span id="215"> 215</span> |
| <span id="216"> 216</span> |
| <span id="217"> 217</span> |
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| <span id="219"> 219</span> |
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| <span id="1000">1000</span> |
| <span id="1001">1001</span> |
| <span id="1002">1002</span> |
| <span id="1003">1003</span> |
| <span id="1004">1004</span> |
| <span id="1005">1005</span> |
| <span id="1006">1006</span> |
| <span id="1007">1007</span> |
| <span id="1008">1008</span> |
| <span id="1009">1009</span> |
| <span id="1010">1010</span> |
| <span id="1011">1011</span> |
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| <span id="1016">1016</span> |
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| <span id="1020">1020</span> |
| <span id="1021">1021</span> |
| <span id="1022">1022</span> |
| <span id="1023">1023</span> |
| <span id="1024">1024</span> |
| <span id="1025">1025</span> |
| <span id="1026">1026</span> |
| <span id="1027">1027</span> |
| <span id="1028">1028</span> |
| <span id="1029">1029</span> |
| <span id="1030">1030</span> |
| <span id="1031">1031</span> |
| <span id="1032">1032</span> |
| <span id="1033">1033</span> |
| <span id="1034">1034</span> |
| <span id="1035">1035</span> |
| <span id="1036">1036</span> |
| <span id="1037">1037</span> |
| <span id="1038">1038</span> |
| <span id="1039">1039</span> |
| <span id="1040">1040</span> |
| <span id="1041">1041</span> |
| <span id="1042">1042</span> |
| <span id="1043">1043</span> |
| <span id="1044">1044</span> |
| <span id="1045">1045</span> |
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| <span id="1048">1048</span> |
| <span id="1049">1049</span> |
| <span id="1050">1050</span> |
| <span id="1051">1051</span> |
| <span id="1052">1052</span> |
| <span id="1053">1053</span> |
| <span id="1054">1054</span> |
| <span id="1055">1055</span> |
| <span id="1056">1056</span> |
| <span id="1057">1057</span> |
| <span id="1058">1058</span> |
| <span id="1059">1059</span> |
| <span id="1060">1060</span> |
| <span id="1061">1061</span> |
| <span id="1062">1062</span> |
| <span id="1063">1063</span> |
| <span id="1064">1064</span> |
| <span id="1065">1065</span> |
| <span id="1066">1066</span> |
| <span id="1067">1067</span> |
| <span id="1068">1068</span> |
| <span id="1069">1069</span> |
| <span id="1070">1070</span> |
| <span id="1071">1071</span> |
| <span id="1072">1072</span> |
| <span id="1073">1073</span> |
| <span id="1074">1074</span> |
| <span id="1075">1075</span> |
| <span id="1076">1076</span> |
| <span id="1077">1077</span> |
| <span id="1078">1078</span> |
| <span id="1079">1079</span> |
| <span id="1080">1080</span> |
| <span id="1081">1081</span> |
| <span id="1082">1082</span> |
| <span id="1083">1083</span> |
| <span id="1084">1084</span> |
| <span id="1085">1085</span> |
| <span id="1086">1086</span> |
| <span id="1087">1087</span> |
| <span id="1088">1088</span> |
| <span id="1089">1089</span> |
| <span id="1090">1090</span> |
| <span id="1091">1091</span> |
| <span id="1092">1092</span> |
| <span id="1093">1093</span> |
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| <span id="1100">1100</span> |
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| <span id="1103">1103</span> |
| <span id="1104">1104</span> |
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| <span id="1108">1108</span> |
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| <span id="1111">1111</span> |
| <span id="1112">1112</span> |
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| <span id="1128">1128</span> |
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| <span id="1171">1171</span> |
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| <span id="1173">1173</span> |
| <span id="1174">1174</span> |
| <span id="1175">1175</span> |
| <span id="1176">1176</span> |
| <span id="1177">1177</span> |
| <span id="1178">1178</span> |
| <span id="1179">1179</span> |
| <span id="1180">1180</span> |
| <span id="1181">1181</span> |
| <span id="1182">1182</span> |
| <span id="1183">1183</span> |
| <span id="1184">1184</span> |
| <span id="1185">1185</span> |
| <span id="1186">1186</span> |
| <span id="1187">1187</span> |
| <span id="1188">1188</span> |
| <span id="1189">1189</span> |
| <span id="1190">1190</span> |
| <span id="1191">1191</span> |
| <span id="1192">1192</span> |
| <span id="1193">1193</span> |
| <span id="1194">1194</span> |
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| <span id="1196">1196</span> |
| <span id="1197">1197</span> |
| <span id="1198">1198</span> |
| <span id="1199">1199</span> |
| <span id="1200">1200</span> |
| <span id="1201">1201</span> |
| <span id="1202">1202</span> |
| <span id="1203">1203</span> |
| <span id="1204">1204</span> |
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| <span id="1219">1219</span> |
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| <span id="1222">1222</span> |
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| <span id="1224">1224</span> |
| <span id="1225">1225</span> |
| <span id="1226">1226</span> |
| <span id="1227">1227</span> |
| <span id="1228">1228</span> |
| <span id="1229">1229</span> |
| <span id="1230">1230</span> |
| <span id="1231">1231</span> |
| <span id="1232">1232</span> |
| <span id="1233">1233</span> |
| <span id="1234">1234</span> |
| <span id="1235">1235</span> |
| <span id="1236">1236</span> |
| <span id="1237">1237</span> |
| <span id="1238">1238</span> |
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| <span id="1240">1240</span> |
| <span id="1241">1241</span> |
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| <span id="1286">1286</span> |
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| <span id="1288">1288</span> |
| <span id="1289">1289</span> |
| <span id="1290">1290</span> |
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| <span id="1293">1293</span> |
| <span id="1294">1294</span> |
| <span id="1295">1295</span> |
| <span id="1296">1296</span> |
| <span id="1297">1297</span> |
| <span id="1298">1298</span> |
| <span id="1299">1299</span> |
| <span id="1300">1300</span> |
| <span id="1301">1301</span> |
| <span id="1302">1302</span> |
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| <span id="1322">1322</span> |
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| <span id="1326">1326</span> |
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| <span id="1331">1331</span> |
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| <span id="1345">1345</span> |
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| <span id="1348">1348</span> |
| <span id="1349">1349</span> |
| <span id="1350">1350</span> |
| <span id="1351">1351</span> |
| <span id="1352">1352</span> |
| <span id="1353">1353</span> |
| <span id="1354">1354</span> |
| <span id="1355">1355</span> |
| <span id="1356">1356</span> |
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| <span id="1358">1358</span> |
| <span id="1359">1359</span> |
| <span id="1360">1360</span> |
| <span id="1361">1361</span> |
| <span id="1362">1362</span> |
| <span id="1363">1363</span> |
| <span id="1364">1364</span> |
| <span id="1365">1365</span> |
| <span id="1366">1366</span> |
| <span id="1367">1367</span> |
| <span id="1368">1368</span> |
| <span id="1369">1369</span> |
| <span id="1370">1370</span> |
| <span id="1371">1371</span> |
| <span id="1372">1372</span> |
| <span id="1373">1373</span> |
| <span id="1374">1374</span> |
| <span id="1375">1375</span> |
| <span id="1376">1376</span> |
| <span id="1377">1377</span> |
| <span id="1378">1378</span> |
| <span id="1379">1379</span> |
| <span id="1380">1380</span> |
| <span id="1381">1381</span> |
| <span id="1382">1382</span> |
| <span id="1383">1383</span> |
| <span id="1384">1384</span> |
| <span id="1385">1385</span> |
| <span id="1386">1386</span> |
| <span id="1387">1387</span> |
| <span id="1388">1388</span> |
| <span id="1389">1389</span> |
| <span id="1390">1390</span> |
| <span id="1391">1391</span> |
| <span id="1392">1392</span> |
| <span id="1393">1393</span> |
| <span id="1394">1394</span> |
| <span id="1395">1395</span> |
| <span id="1396">1396</span> |
| <span id="1397">1397</span> |
| <span id="1398">1398</span> |
| <span id="1399">1399</span> |
| <span id="1400">1400</span> |
| <span id="1401">1401</span> |
| <span id="1402">1402</span> |
| <span id="1403">1403</span> |
| <span id="1404">1404</span> |
| <span id="1405">1405</span> |
| <span id="1406">1406</span> |
| <span id="1407">1407</span> |
| <span id="1408">1408</span> |
| <span id="1409">1409</span> |
| <span id="1410">1410</span> |
| <span id="1411">1411</span> |
| <span id="1412">1412</span> |
| <span id="1413">1413</span> |
| <span id="1414">1414</span> |
| <span id="1415">1415</span> |
| <span id="1416">1416</span> |
| <span id="1417">1417</span> |
| <span id="1418">1418</span> |
| <span id="1419">1419</span> |
| <span id="1420">1420</span> |
| <span id="1421">1421</span> |
| <span id="1422">1422</span> |
| <span id="1423">1423</span> |
| <span id="1424">1424</span> |
| <span id="1425">1425</span> |
| <span id="1426">1426</span> |
| <span id="1427">1427</span> |
| <span id="1428">1428</span> |
| <span id="1429">1429</span> |
| <span id="1430">1430</span> |
| <span id="1431">1431</span> |
| <span id="1432">1432</span> |
| <span id="1433">1433</span> |
| <span id="1434">1434</span> |
| <span id="1435">1435</span> |
| <span id="1436">1436</span> |
| <span id="1437">1437</span> |
| <span id="1438">1438</span> |
| <span id="1439">1439</span> |
| <span id="1440">1440</span> |
| <span id="1441">1441</span> |
| <span id="1442">1442</span> |
| <span id="1443">1443</span> |
| <span id="1444">1444</span> |
| <span id="1445">1445</span> |
| <span id="1446">1446</span> |
| <span id="1447">1447</span> |
| <span id="1448">1448</span> |
| <span id="1449">1449</span> |
| <span id="1450">1450</span> |
| <span id="1451">1451</span> |
| </pre><pre class="rust "> |
| <span class="doccomment">//! Readline for Rust</span> |
| <span class="doccomment">//!</span> |
| <span class="doccomment">//! This implementation is based on [Antirez's Linenoise](https://github.com/antirez/linenoise)</span> |
| <span class="doccomment">//!</span> |
| <span class="doccomment">//! # Example</span> |
| <span class="doccomment">//!</span> |
| <span class="doccomment">//! Usage</span> |
| <span class="doccomment">//!</span> |
| <span class="doccomment">//! ```</span> |
| <span class="doccomment">//! let mut rl = rustyline::Editor::<()>::new();</span> |
| <span class="doccomment">//! let readline = rl.readline(">> ");</span> |
| <span class="doccomment">//! match readline {</span> |
| <span class="doccomment">//! Ok(line) => println!("Line: {:?}",line),</span> |
| <span class="doccomment">//! Err(_) => println!("No input"),</span> |
| <span class="doccomment">//! }</span> |
| <span class="doccomment">//! ```</span> |
| <span class="attribute">#<span class="op">!</span>[<span class="ident">allow</span>(<span class="ident">unknown_lints</span>)]</span> |
| |
| <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">libc</span>; |
| <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">encode_unicode</span>; |
| <span class="attribute">#[<span class="ident">macro_use</span>]</span> |
| <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">log</span>; |
| <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">unicode_segmentation</span>; |
| <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">unicode_width</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">unix</span>)]</span> |
| <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">nix</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">windows</span>)]</span> |
| <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">winapi</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">windows</span>)]</span> |
| <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">kernel32</span>; |
| |
| <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">completion</span>; |
| <span class="kw">mod</span> <span class="ident">consts</span>; |
| <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">error</span>; |
| <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">history</span>; |
| <span class="kw">mod</span> <span class="ident">keymap</span>; |
| <span class="kw">mod</span> <span class="ident">kill_ring</span>; |
| <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">line_buffer</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">unix</span>)]</span> |
| <span class="kw">mod</span> <span class="ident">char_iter</span>; |
| <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">config</span>; |
| |
| <span class="kw">mod</span> <span class="ident">tty</span>; |
| |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">cell</span>::<span class="ident">RefCell</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">HashMap</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fmt</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::{<span class="self">self</span>, <span class="ident">Write</span>}; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">mem</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">path</span>::<span class="ident">Path</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">rc</span>::<span class="ident">Rc</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">result</span>; |
| <span class="kw">use</span> <span class="ident">unicode_segmentation</span>::<span class="ident">UnicodeSegmentation</span>; |
| <span class="kw">use</span> <span class="ident">unicode_width</span>::{<span class="ident">UnicodeWidthChar</span>, <span class="ident">UnicodeWidthStr</span>}; |
| |
| <span class="kw">use</span> <span class="ident">tty</span>::{<span class="ident">RawMode</span>, <span class="ident">RawReader</span>, <span class="ident">Terminal</span>, <span class="ident">Term</span>}; |
| |
| <span class="kw">use</span> <span class="ident">encode_unicode</span>::<span class="ident">CharExt</span>; |
| <span class="kw">use</span> <span class="ident">completion</span>::{<span class="ident">Completer</span>, <span class="ident">longest_common_prefix</span>}; |
| <span class="kw">use</span> <span class="ident">history</span>::{<span class="ident">Direction</span>, <span class="ident">History</span>}; |
| <span class="kw">use</span> <span class="ident">line_buffer</span>::{<span class="ident">LineBuffer</span>, <span class="ident">MAX_LINE</span>, <span class="ident">WordAction</span>}; |
| <span class="kw">pub</span> <span class="kw">use</span> <span class="ident">keymap</span>::{<span class="ident">Anchor</span>, <span class="ident">At</span>, <span class="ident">CharSearch</span>, <span class="ident">Cmd</span>, <span class="ident">Movement</span>, <span class="ident">RepeatCount</span>, <span class="ident">Word</span>}; |
| <span class="kw">use</span> <span class="ident">keymap</span>::<span class="ident">EditState</span>; |
| <span class="kw">use</span> <span class="ident">kill_ring</span>::{<span class="ident">Mode</span>, <span class="ident">KillRing</span>}; |
| <span class="kw">pub</span> <span class="kw">use</span> <span class="ident">config</span>::{<span class="ident">CompletionType</span>, <span class="ident">Config</span>, <span class="ident">EditMode</span>, <span class="ident">HistoryDuplicates</span>}; |
| <span class="kw">pub</span> <span class="kw">use</span> <span class="ident">consts</span>::<span class="ident">KeyPress</span>; |
| |
| <span class="doccomment">/// The error type for I/O and Linux Syscalls (Errno)</span> |
| <span class="kw">pub</span> <span class="kw">type</span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="op">=</span> <span class="ident">result</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">error</span>::<span class="ident">ReadlineError</span><span class="op">></span>; |
| |
| <span class="comment">// Represent the state during line editing.</span> |
| <span class="kw">struct</span> <span class="ident">State</span><span class="op"><</span><span class="lifetime">'out</span>, <span class="lifetime">'prompt</span><span class="op">></span> { |
| <span class="ident">out</span>: <span class="kw-2">&</span><span class="lifetime">'out</span> <span class="kw-2">mut</span> <span class="ident">Write</span>, |
| <span class="ident">prompt</span>: <span class="kw-2">&</span><span class="lifetime">'prompt</span> <span class="ident">str</span>, <span class="comment">// Prompt to display</span> |
| <span class="ident">prompt_size</span>: <span class="ident">Position</span>, <span class="comment">// Prompt Unicode width and height</span> |
| <span class="ident">line</span>: <span class="ident">LineBuffer</span>, <span class="comment">// Edited line buffer</span> |
| <span class="ident">cursor</span>: <span class="ident">Position</span>, <span class="comment">// Cursor position (relative to the start of the prompt for `row`)</span> |
| <span class="ident">cols</span>: <span class="ident">usize</span>, <span class="comment">// Number of columns in terminal</span> |
| <span class="ident">old_rows</span>: <span class="ident">usize</span>, <span class="comment">// Number of rows used so far (from start of prompt to end of input)</span> |
| <span class="ident">history_index</span>: <span class="ident">usize</span>, <span class="comment">// The history index we are currently editing</span> |
| <span class="ident">snapshot</span>: <span class="ident">LineBuffer</span>, <span class="comment">// Current edited line before history browsing/completion</span> |
| <span class="ident">term</span>: <span class="ident">Terminal</span>, <span class="comment">// terminal</span> |
| <span class="ident">edit_state</span>: <span class="ident">EditState</span>, |
| } |
| |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Copy</span>, <span class="ident">Clone</span>, <span class="ident">Debug</span>, <span class="ident">Default</span>)]</span> |
| <span class="kw">struct</span> <span class="ident">Position</span> { |
| <span class="ident">col</span>: <span class="ident">usize</span>, |
| <span class="ident">row</span>: <span class="ident">usize</span>, |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'out</span>, <span class="lifetime">'prompt</span><span class="op">></span> <span class="ident">State</span><span class="op"><</span><span class="lifetime">'out</span>, <span class="lifetime">'prompt</span><span class="op">></span> { |
| <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">out</span>: <span class="kw-2">&</span><span class="lifetime">'out</span> <span class="kw-2">mut</span> <span class="ident">Write</span>, |
| <span class="ident">term</span>: <span class="ident">Terminal</span>, |
| <span class="ident">config</span>: <span class="kw-2">&</span><span class="ident">Config</span>, |
| <span class="ident">prompt</span>: <span class="kw-2">&</span><span class="lifetime">'prompt</span> <span class="ident">str</span>, |
| <span class="ident">history_index</span>: <span class="ident">usize</span>, |
| <span class="ident">custom_bindings</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">RefCell</span><span class="op"><</span><span class="ident">HashMap</span><span class="op"><</span><span class="ident">KeyPress</span>, <span class="ident">Cmd</span><span class="op">>></span><span class="op">></span>) |
| <span class="op">-></span> <span class="ident">State</span><span class="op"><</span><span class="lifetime">'out</span>, <span class="lifetime">'prompt</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">capacity</span> <span class="op">=</span> <span class="ident">MAX_LINE</span>; |
| <span class="kw">let</span> <span class="ident">cols</span> <span class="op">=</span> <span class="ident">term</span>.<span class="ident">get_columns</span>(); |
| <span class="kw">let</span> <span class="ident">prompt_size</span> <span class="op">=</span> <span class="ident">calculate_position</span>(<span class="ident">prompt</span>, <span class="ident">Position</span>::<span class="ident">default</span>(), <span class="ident">cols</span>); |
| <span class="ident">State</span> { |
| <span class="ident">out</span>: <span class="ident">out</span>, |
| <span class="ident">prompt</span>: <span class="ident">prompt</span>, |
| <span class="ident">prompt_size</span>: <span class="ident">prompt_size</span>, |
| <span class="ident">line</span>: <span class="ident">LineBuffer</span>::<span class="ident">with_capacity</span>(<span class="ident">capacity</span>), |
| <span class="ident">cursor</span>: <span class="ident">prompt_size</span>, |
| <span class="ident">cols</span>: <span class="ident">cols</span>, |
| <span class="ident">old_rows</span>: <span class="ident">prompt_size</span>.<span class="ident">row</span>, |
| <span class="ident">history_index</span>: <span class="ident">history_index</span>, |
| <span class="ident">snapshot</span>: <span class="ident">LineBuffer</span>::<span class="ident">with_capacity</span>(<span class="ident">capacity</span>), |
| <span class="ident">term</span>: <span class="ident">term</span>, |
| <span class="ident">edit_state</span>: <span class="ident">EditState</span>::<span class="ident">new</span>(<span class="ident">config</span>, <span class="ident">custom_bindings</span>), |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">next_cmd</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">RawReader</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">rdr</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">R</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Cmd</span><span class="op">></span> { |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">rc</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">edit_state</span>.<span class="ident">next_cmd</span>(<span class="ident">rdr</span>); |
| <span class="kw">if</span> <span class="ident">rc</span>.<span class="ident">is_err</span>() <span class="op">&&</span> <span class="self">self</span>.<span class="ident">term</span>.<span class="ident">sigwinch</span>() { |
| <span class="self">self</span>.<span class="ident">update_columns</span>(); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">refresh_line</span>()); |
| <span class="kw">continue</span>; |
| } |
| <span class="kw">return</span> <span class="ident">rc</span>; |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">snapshot</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { |
| <span class="ident">mem</span>::<span class="ident">swap</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">line</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">snapshot</span>); |
| } |
| |
| <span class="kw">fn</span> <span class="ident">backup</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { |
| <span class="self">self</span>.<span class="ident">snapshot</span>.<span class="ident">backup</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">line</span>); |
| } |
| |
| <span class="doccomment">/// Rewrite the currently edited line accordingly to the buffer content,</span> |
| <span class="doccomment">/// cursor position, and number of columns of the terminal.</span> |
| <span class="kw">fn</span> <span class="ident">refresh_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">prompt_size</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">prompt_size</span>; |
| <span class="self">self</span>.<span class="ident">refresh</span>(<span class="self">self</span>.<span class="ident">prompt</span>, <span class="ident">prompt_size</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">refresh_prompt_and_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">prompt</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">prompt_size</span> <span class="op">=</span> <span class="ident">calculate_position</span>(<span class="ident">prompt</span>, <span class="ident">Position</span>::<span class="ident">default</span>(), <span class="self">self</span>.<span class="ident">cols</span>); |
| <span class="self">self</span>.<span class="ident">refresh</span>(<span class="ident">prompt</span>, <span class="ident">prompt_size</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">unix</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">refresh</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">prompt</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">prompt_size</span>: <span class="ident">Position</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fmt</span>::<span class="ident">Write</span>; |
| |
| <span class="comment">// calculate the position of the end of the input line</span> |
| <span class="kw">let</span> <span class="ident">end_pos</span> <span class="op">=</span> <span class="ident">calculate_position</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">line</span>, <span class="ident">prompt_size</span>, <span class="self">self</span>.<span class="ident">cols</span>); |
| <span class="comment">// calculate the desired position of the cursor</span> |
| <span class="kw">let</span> <span class="ident">cursor</span> <span class="op">=</span> <span class="ident">calculate_position</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">line</span>[..<span class="self">self</span>.<span class="ident">line</span>.<span class="ident">pos</span>()], <span class="ident">prompt_size</span>, <span class="self">self</span>.<span class="ident">cols</span>); |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ab</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">new</span>(); |
| |
| <span class="kw">let</span> <span class="ident">cursor_row_movement</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">old_rows</span> <span class="op">-</span> <span class="self">self</span>.<span class="ident">cursor</span>.<span class="ident">row</span>; |
| <span class="comment">// move the cursor down as required</span> |
| <span class="kw">if</span> <span class="ident">cursor_row_movement</span> <span class="op">></span> <span class="number">0</span> { |
| <span class="macro">write</span><span class="macro">!</span>(<span class="ident">ab</span>, <span class="string">"\x1b[{}B"</span>, <span class="ident">cursor_row_movement</span>).<span class="ident">unwrap</span>(); |
| } |
| <span class="comment">// clear old rows</span> |
| <span class="kw">for</span> _ <span class="kw">in</span> <span class="number">0</span>..<span class="self">self</span>.<span class="ident">old_rows</span> { |
| <span class="ident">ab</span>.<span class="ident">push_str</span>(<span class="string">"\r\x1b[0K\x1b[1A"</span>); |
| } |
| <span class="comment">// clear the line</span> |
| <span class="ident">ab</span>.<span class="ident">push_str</span>(<span class="string">"\r\x1b[0K"</span>); |
| |
| <span class="comment">// display the prompt</span> |
| <span class="ident">ab</span>.<span class="ident">push_str</span>(<span class="ident">prompt</span>); |
| <span class="comment">// display the input line</span> |
| <span class="ident">ab</span>.<span class="ident">push_str</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">line</span>); |
| <span class="comment">// we have to generate our own newline on line wrap</span> |
| <span class="kw">if</span> <span class="ident">end_pos</span>.<span class="ident">col</span> <span class="op">==</span> <span class="number">0</span> <span class="op">&&</span> <span class="ident">end_pos</span>.<span class="ident">row</span> <span class="op">></span> <span class="number">0</span> { |
| <span class="ident">ab</span>.<span class="ident">push_str</span>(<span class="string">"\n"</span>); |
| } |
| <span class="comment">// position the cursor</span> |
| <span class="kw">let</span> <span class="ident">cursor_row_movement</span> <span class="op">=</span> <span class="ident">end_pos</span>.<span class="ident">row</span> <span class="op">-</span> <span class="ident">cursor</span>.<span class="ident">row</span>; |
| <span class="comment">// move the cursor up as required</span> |
| <span class="kw">if</span> <span class="ident">cursor_row_movement</span> <span class="op">></span> <span class="number">0</span> { |
| <span class="macro">write</span><span class="macro">!</span>(<span class="ident">ab</span>, <span class="string">"\x1b[{}A"</span>, <span class="ident">cursor_row_movement</span>).<span class="ident">unwrap</span>(); |
| } |
| <span class="comment">// position the cursor within the line</span> |
| <span class="kw">if</span> <span class="ident">cursor</span>.<span class="ident">col</span> <span class="op">></span> <span class="number">0</span> { |
| <span class="macro">write</span><span class="macro">!</span>(<span class="ident">ab</span>, <span class="string">"\r\x1b[{}C"</span>, <span class="ident">cursor</span>.<span class="ident">col</span>).<span class="ident">unwrap</span>(); |
| } <span class="kw">else</span> { |
| <span class="ident">ab</span>.<span class="ident">push</span>(<span class="string">'\r'</span>); |
| } |
| |
| <span class="self">self</span>.<span class="ident">cursor</span> <span class="op">=</span> <span class="ident">cursor</span>; |
| <span class="self">self</span>.<span class="ident">old_rows</span> <span class="op">=</span> <span class="ident">end_pos</span>.<span class="ident">row</span>; |
| |
| <span class="ident">write_and_flush</span>(<span class="self">self</span>.<span class="ident">out</span>, <span class="ident">ab</span>.<span class="ident">as_bytes</span>()) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">windows</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">refresh</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">prompt</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">prompt_size</span>: <span class="ident">Position</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="comment">// calculate the position of the end of the input line</span> |
| <span class="kw">let</span> <span class="ident">end_pos</span> <span class="op">=</span> <span class="ident">calculate_position</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">line</span>, <span class="ident">prompt_size</span>, <span class="self">self</span>.<span class="ident">cols</span>); |
| <span class="comment">// calculate the desired position of the cursor</span> |
| <span class="kw">let</span> <span class="ident">cursor</span> <span class="op">=</span> <span class="ident">calculate_position</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">line</span>[..<span class="self">self</span>.<span class="ident">line</span>.<span class="ident">pos</span>()], <span class="ident">prompt_size</span>, <span class="self">self</span>.<span class="ident">cols</span>); |
| |
| <span class="comment">// position at the start of the prompt, clear to end of previous input</span> |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">info</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">term</span>.<span class="ident">get_console_screen_buffer_info</span>()); |
| <span class="ident">info</span>.<span class="ident">dwCursorPosition</span>.<span class="ident">X</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="ident">info</span>.<span class="ident">dwCursorPosition</span>.<span class="ident">Y</span> <span class="op">-=</span> <span class="self">self</span>.<span class="ident">cursor</span>.<span class="ident">row</span> <span class="kw">as</span> <span class="ident">i16</span>; |
| <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">term</span> |
| .<span class="ident">set_console_cursor_position</span>(<span class="ident">info</span>.<span class="ident">dwCursorPosition</span>)); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">_count</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">term</span> |
| .<span class="ident">fill_console_output_character</span>((<span class="ident">info</span>.<span class="ident">dwSize</span>.<span class="ident">X</span> <span class="op">*</span> (<span class="self">self</span>.<span class="ident">old_rows</span> <span class="kw">as</span> <span class="ident">i16</span> <span class="op">+</span> <span class="number">1</span>)) <span class="kw">as</span> |
| <span class="ident">u32</span>, |
| <span class="ident">info</span>.<span class="ident">dwCursorPosition</span>)); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ab</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">new</span>(); |
| <span class="comment">// display the prompt</span> |
| <span class="ident">ab</span>.<span class="ident">push_str</span>(<span class="ident">prompt</span>); <span class="comment">// TODO handle ansi escape code (SetConsoleTextAttribute)</span> |
| <span class="comment">// display the input line</span> |
| <span class="ident">ab</span>.<span class="ident">push_str</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">line</span>); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">write_and_flush</span>(<span class="self">self</span>.<span class="ident">out</span>, <span class="ident">ab</span>.<span class="ident">as_bytes</span>())); |
| |
| <span class="comment">// position the cursor</span> |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">info</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">term</span>.<span class="ident">get_console_screen_buffer_info</span>()); |
| <span class="ident">info</span>.<span class="ident">dwCursorPosition</span>.<span class="ident">X</span> <span class="op">=</span> <span class="ident">cursor</span>.<span class="ident">col</span> <span class="kw">as</span> <span class="ident">i16</span>; |
| <span class="ident">info</span>.<span class="ident">dwCursorPosition</span>.<span class="ident">Y</span> <span class="op">-=</span> (<span class="ident">end_pos</span>.<span class="ident">row</span> <span class="op">-</span> <span class="ident">cursor</span>.<span class="ident">row</span>) <span class="kw">as</span> <span class="ident">i16</span>; |
| <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">term</span> |
| .<span class="ident">set_console_cursor_position</span>(<span class="ident">info</span>.<span class="ident">dwCursorPosition</span>)); |
| |
| <span class="self">self</span>.<span class="ident">cursor</span> <span class="op">=</span> <span class="ident">cursor</span>; |
| <span class="self">self</span>.<span class="ident">old_rows</span> <span class="op">=</span> <span class="ident">end_pos</span>.<span class="ident">row</span>; |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">update_columns</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { |
| <span class="self">self</span>.<span class="ident">cols</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">term</span>.<span class="ident">get_columns</span>(); |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'out</span>, <span class="lifetime">'prompt</span><span class="op">></span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">State</span><span class="op"><</span><span class="lifetime">'out</span>, <span class="lifetime">'prompt</span><span class="op">></span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { |
| <span class="ident">f</span>.<span class="ident">debug_struct</span>(<span class="string">"State"</span>) |
| .<span class="ident">field</span>(<span class="string">"prompt"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">prompt</span>) |
| .<span class="ident">field</span>(<span class="string">"prompt_size"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">prompt_size</span>) |
| .<span class="ident">field</span>(<span class="string">"buf"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">line</span>) |
| .<span class="ident">field</span>(<span class="string">"cursor"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">cursor</span>) |
| .<span class="ident">field</span>(<span class="string">"cols"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">cols</span>) |
| .<span class="ident">field</span>(<span class="string">"old_rows"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">old_rows</span>) |
| .<span class="ident">field</span>(<span class="string">"history_index"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">history_index</span>) |
| .<span class="ident">field</span>(<span class="string">"snapshot"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">snapshot</span>) |
| .<span class="ident">finish</span>() |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">write_and_flush</span>(<span class="ident">w</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Write</span>, <span class="ident">buf</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">w</span>.<span class="ident">write_all</span>(<span class="ident">buf</span>)); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">w</span>.<span class="ident">flush</span>()); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="doccomment">/// Beep, used for completion when there is nothing to complete or when all</span> |
| <span class="doccomment">/// the choices were already shown.</span> |
| <span class="kw">fn</span> <span class="ident">beep</span>() <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="ident">write_and_flush</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">io</span>::<span class="ident">stderr</span>(), <span class="string">b"\x07"</span>) <span class="comment">// TODO bell-style</span> |
| } |
| |
| <span class="doccomment">/// Calculate the number of columns and rows used to display `s` on a `cols` width terminal</span> |
| <span class="doccomment">/// starting at `orig`.</span> |
| <span class="doccomment">/// Control characters are treated as having zero width.</span> |
| <span class="doccomment">/// Characters with 2 column width are correctly handled (not splitted).</span> |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">if_same_then_else</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">calculate_position</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">orig</span>: <span class="ident">Position</span>, <span class="ident">cols</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="ident">Position</span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pos</span> <span class="op">=</span> <span class="ident">orig</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">esc_seq</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="kw">for</span> <span class="ident">c</span> <span class="kw">in</span> <span class="ident">s</span>.<span class="ident">chars</span>() { |
| <span class="kw">let</span> <span class="ident">cw</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">esc_seq</span> <span class="op">==</span> <span class="number">1</span> { |
| <span class="kw">if</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'['</span> { |
| <span class="comment">// CSI</span> |
| <span class="ident">esc_seq</span> <span class="op">=</span> <span class="number">2</span>; |
| } <span class="kw">else</span> { |
| <span class="comment">// two-character sequence</span> |
| <span class="ident">esc_seq</span> <span class="op">=</span> <span class="number">0</span>; |
| } |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">esc_seq</span> <span class="op">==</span> <span class="number">2</span> { |
| <span class="kw">if</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">';'</span> <span class="op">||</span> (<span class="ident">c</span> <span class="op">>=</span> <span class="string">'0'</span> <span class="op">&&</span> <span class="ident">c</span> <span class="op"><=</span> <span class="string">'9'</span>) { |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'m'</span> { |
| <span class="comment">// last</span> |
| <span class="ident">esc_seq</span> <span class="op">=</span> <span class="number">0</span>; |
| } <span class="kw">else</span> { |
| <span class="comment">// not supported</span> |
| <span class="ident">esc_seq</span> <span class="op">=</span> <span class="number">0</span>; |
| } |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'\x1b'</span> { |
| <span class="ident">esc_seq</span> <span class="op">=</span> <span class="number">1</span>; |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'\n'</span> { |
| <span class="ident">pos</span>.<span class="ident">col</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="ident">pos</span>.<span class="ident">row</span> <span class="op">+=</span> <span class="number">1</span>; |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> { |
| <span class="ident">c</span>.<span class="ident">width</span>() |
| }; |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cw</span>) <span class="op">=</span> <span class="ident">cw</span> { |
| <span class="ident">pos</span>.<span class="ident">col</span> <span class="op">+=</span> <span class="ident">cw</span>; |
| <span class="kw">if</span> <span class="ident">pos</span>.<span class="ident">col</span> <span class="op">></span> <span class="ident">cols</span> { |
| <span class="ident">pos</span>.<span class="ident">row</span> <span class="op">+=</span> <span class="number">1</span>; |
| <span class="ident">pos</span>.<span class="ident">col</span> <span class="op">=</span> <span class="ident">cw</span>; |
| } |
| } |
| } |
| <span class="kw">if</span> <span class="ident">pos</span>.<span class="ident">col</span> <span class="op">==</span> <span class="ident">cols</span> { |
| <span class="ident">pos</span>.<span class="ident">col</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="ident">pos</span>.<span class="ident">row</span> <span class="op">+=</span> <span class="number">1</span>; |
| } |
| <span class="ident">pos</span> |
| } |
| |
| <span class="doccomment">/// Insert the character `ch` at cursor current position.</span> |
| <span class="kw">fn</span> <span class="ident">edit_insert</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">ch</span>: <span class="ident">char</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">push</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">insert</span>(<span class="ident">ch</span>, <span class="ident">n</span>) { |
| <span class="kw">if</span> <span class="ident">push</span> { |
| <span class="kw">if</span> <span class="ident">n</span> <span class="op">==</span> <span class="number">1</span> <span class="op">&&</span> <span class="ident">s</span>.<span class="ident">cursor</span>.<span class="ident">col</span> <span class="op">+</span> <span class="ident">ch</span>.<span class="ident">width</span>().<span class="ident">unwrap_or</span>(<span class="number">0</span>) <span class="op"><</span> <span class="ident">s</span>.<span class="ident">cols</span> { |
| <span class="comment">// Avoid a full update of the line in the trivial case.</span> |
| <span class="kw">let</span> <span class="ident">cursor</span> <span class="op">=</span> <span class="ident">calculate_position</span>(<span class="kw-2">&</span><span class="ident">s</span>.<span class="ident">line</span>[..<span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">pos</span>()], <span class="ident">s</span>.<span class="ident">prompt_size</span>, <span class="ident">s</span>.<span class="ident">cols</span>); |
| <span class="ident">s</span>.<span class="ident">cursor</span> <span class="op">=</span> <span class="ident">cursor</span>; |
| <span class="ident">write_and_flush</span>(<span class="ident">s</span>.<span class="ident">out</span>, <span class="ident">ch</span>.<span class="ident">to_utf8</span>().<span class="ident">as_bytes</span>()) |
| } <span class="kw">else</span> { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } |
| } <span class="kw">else</span> { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Replace a single (or n) character(s) under the cursor (Vi mode)</span> |
| <span class="kw">fn</span> <span class="ident">edit_replace_char</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">ch</span>: <span class="ident">char</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">chars</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">delete</span>(<span class="ident">n</span>) { |
| <span class="kw">let</span> <span class="ident">count</span> <span class="op">=</span> <span class="ident">chars</span>.<span class="ident">graphemes</span>(<span class="bool-val">true</span>).<span class="ident">count</span>(); |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">insert</span>(<span class="ident">ch</span>, <span class="ident">count</span>); |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_backward</span>(<span class="number">1</span>); |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="comment">// Yank/paste `text` at current position.</span> |
| <span class="kw">fn</span> <span class="ident">edit_yank</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">text</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">anchor</span>: <span class="ident">Anchor</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Anchor</span>::<span class="ident">After</span> <span class="op">=</span> <span class="ident">anchor</span> { |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_forward</span>(<span class="number">1</span>); |
| } |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">yank</span>(<span class="ident">text</span>, <span class="ident">n</span>).<span class="ident">is_some</span>() { |
| <span class="kw">if</span> <span class="op">!</span><span class="ident">s</span>.<span class="ident">edit_state</span>.<span class="ident">is_emacs_mode</span>() { |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_backward</span>(<span class="number">1</span>); |
| } |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="comment">// Delete previously yanked text and yank/paste `text` at current position.</span> |
| <span class="kw">fn</span> <span class="ident">edit_yank_pop</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">yank_size</span>: <span class="ident">usize</span>, <span class="ident">text</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">yank_pop</span>(<span class="ident">yank_size</span>, <span class="ident">text</span>); |
| <span class="ident">edit_yank</span>(<span class="ident">s</span>, <span class="ident">text</span>, <span class="ident">Anchor</span>::<span class="ident">Before</span>, <span class="number">1</span>) |
| } |
| |
| <span class="doccomment">/// Move cursor on the left.</span> |
| <span class="kw">fn</span> <span class="ident">edit_move_backward</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_backward</span>(<span class="ident">n</span>) { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Move cursor on the right.</span> |
| <span class="kw">fn</span> <span class="ident">edit_move_forward</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_forward</span>(<span class="ident">n</span>) { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Move cursor to the start of the line.</span> |
| <span class="kw">fn</span> <span class="ident">edit_move_home</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_home</span>() { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Move cursor to the end of the line.</span> |
| <span class="kw">fn</span> <span class="ident">edit_move_end</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_end</span>() { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Delete the character at the right of the cursor without altering the cursor</span> |
| <span class="doccomment">/// position. Basically this is what happens with the "Delete" keyboard key.</span> |
| <span class="kw">fn</span> <span class="ident">edit_delete</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">delete</span>(<span class="ident">n</span>).<span class="ident">is_some</span>() { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Backspace implementation.</span> |
| <span class="kw">fn</span> <span class="ident">edit_backspace</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">backspace</span>(<span class="ident">n</span>).<span class="ident">is_some</span>() { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Kill the text from point to the end of the line.</span> |
| <span class="kw">fn</span> <span class="ident">edit_kill_line</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">kill_line</span>() { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">text</span>)) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="doccomment">/// Kill backward from point to the beginning of the line.</span> |
| <span class="kw">fn</span> <span class="ident">edit_discard_line</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">discard_line</span>() { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">text</span>)) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="doccomment">/// Exchange the char before cursor with the character at cursor.</span> |
| <span class="kw">fn</span> <span class="ident">edit_transpose_chars</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">transpose_chars</span>() { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">edit_move_to_prev_word</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">word_def</span>: <span class="ident">Word</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_to_prev_word</span>(<span class="ident">word_def</span>, <span class="ident">n</span>) { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Delete the previous word, maintaining the cursor at the start of the</span> |
| <span class="doccomment">/// current word.</span> |
| <span class="kw">fn</span> <span class="ident">edit_delete_prev_word</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">word_def</span>: <span class="ident">Word</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">delete_prev_word</span>(<span class="ident">word_def</span>, <span class="ident">n</span>) { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">text</span>)) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">edit_move_to_next_word</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">at</span>: <span class="ident">At</span>, <span class="ident">word_def</span>: <span class="ident">Word</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_to_next_word</span>(<span class="ident">at</span>, <span class="ident">word_def</span>, <span class="ident">n</span>) { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">edit_move_to</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">cs</span>: <span class="ident">CharSearch</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">move_to</span>(<span class="ident">cs</span>, <span class="ident">n</span>) { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Kill from the cursor to the end of the current word, or, if between words, to the end of the next word.</span> |
| <span class="kw">fn</span> <span class="ident">edit_delete_word</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, |
| <span class="ident">at</span>: <span class="ident">At</span>, |
| <span class="ident">word_def</span>: <span class="ident">Word</span>, |
| <span class="ident">n</span>: <span class="ident">RepeatCount</span>) |
| <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">delete_word</span>(<span class="ident">at</span>, <span class="ident">word_def</span>, <span class="ident">n</span>) { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">text</span>)) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">edit_delete_to</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">cs</span>: <span class="ident">CharSearch</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">delete_to</span>(<span class="ident">cs</span>, <span class="ident">n</span>) { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">text</span>)) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">edit_word</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">a</span>: <span class="ident">WordAction</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">edit_word</span>(<span class="ident">a</span>) { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">edit_transpose_words</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">transpose_words</span>(<span class="ident">n</span>) { |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Substitute the currently edited line with the next or previous history</span> |
| <span class="doccomment">/// entry.</span> |
| <span class="kw">fn</span> <span class="ident">edit_history_next</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">history</span>: <span class="kw-2">&</span><span class="ident">History</span>, <span class="ident">prev</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">history</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(()); |
| } |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">==</span> <span class="ident">history</span>.<span class="ident">len</span>() { |
| <span class="kw">if</span> <span class="ident">prev</span> { |
| <span class="comment">// Save the current edited line before to overwrite it</span> |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| } <span class="kw">else</span> { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(()); |
| } |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">==</span> <span class="number">0</span> <span class="op">&&</span> <span class="ident">prev</span> { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(()); |
| } |
| <span class="kw">if</span> <span class="ident">prev</span> { |
| <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">-=</span> <span class="number">1</span>; |
| } <span class="kw">else</span> { |
| <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">+=</span> <span class="number">1</span>; |
| } |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op"><</span> <span class="ident">history</span>.<span class="ident">len</span>() { |
| <span class="kw">let</span> <span class="ident">buf</span> <span class="op">=</span> <span class="ident">history</span>.<span class="ident">get</span>(<span class="ident">s</span>.<span class="ident">history_index</span>).<span class="ident">unwrap</span>(); |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">update</span>(<span class="ident">buf</span>, <span class="ident">buf</span>.<span class="ident">len</span>()); |
| } <span class="kw">else</span> { |
| <span class="comment">// Restore current edited line</span> |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| } |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } |
| |
| <span class="kw">fn</span> <span class="ident">edit_history_search</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">history</span>: <span class="kw-2">&</span><span class="ident">History</span>, <span class="ident">dir</span>: <span class="ident">Direction</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">history</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">return</span> <span class="ident">beep</span>(); |
| } |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">==</span> <span class="ident">history</span>.<span class="ident">len</span>() <span class="op">&&</span> <span class="ident">dir</span> <span class="op">==</span> <span class="ident">Direction</span>::<span class="ident">Forward</span> { |
| <span class="kw">return</span> <span class="ident">beep</span>(); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">==</span> <span class="number">0</span> <span class="op">&&</span> <span class="ident">dir</span> <span class="op">==</span> <span class="ident">Direction</span>::<span class="ident">Reverse</span> { |
| <span class="kw">return</span> <span class="ident">beep</span>(); |
| } |
| <span class="kw">if</span> <span class="ident">dir</span> <span class="op">==</span> <span class="ident">Direction</span>::<span class="ident">Reverse</span> { |
| <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">-=</span> <span class="number">1</span>; |
| } <span class="kw">else</span> { |
| <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">+=</span> <span class="number">1</span>; |
| } |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">history_index</span>) <span class="op">=</span> |
| <span class="ident">history</span>.<span class="ident">starts_with</span>(<span class="kw-2">&</span><span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">as_str</span>()[..<span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">pos</span>()], <span class="ident">s</span>.<span class="ident">history_index</span>, <span class="ident">dir</span>) { |
| <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">=</span> <span class="ident">history_index</span>; |
| <span class="kw">let</span> <span class="ident">buf</span> <span class="op">=</span> <span class="ident">history</span>.<span class="ident">get</span>(<span class="ident">history_index</span>).<span class="ident">unwrap</span>(); |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">update</span>(<span class="ident">buf</span>, <span class="ident">buf</span>.<span class="ident">len</span>()); |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } <span class="kw">else</span> { |
| <span class="ident">beep</span>() |
| } |
| } |
| |
| <span class="doccomment">/// Substitute the currently edited line with the first/last history entry.</span> |
| <span class="kw">fn</span> <span class="ident">edit_history</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, <span class="ident">history</span>: <span class="kw-2">&</span><span class="ident">History</span>, <span class="ident">first</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">history</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(()); |
| } |
| <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">==</span> <span class="ident">history</span>.<span class="ident">len</span>() { |
| <span class="kw">if</span> <span class="ident">first</span> { |
| <span class="comment">// Save the current edited line before to overwrite it</span> |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| } <span class="kw">else</span> { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(()); |
| } |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">==</span> <span class="number">0</span> <span class="op">&&</span> <span class="ident">first</span> { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(()); |
| } |
| <span class="kw">if</span> <span class="ident">first</span> { |
| <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="kw">let</span> <span class="ident">buf</span> <span class="op">=</span> <span class="ident">history</span>.<span class="ident">get</span>(<span class="ident">s</span>.<span class="ident">history_index</span>).<span class="ident">unwrap</span>(); |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">update</span>(<span class="ident">buf</span>, <span class="ident">buf</span>.<span class="ident">len</span>()); |
| } <span class="kw">else</span> { |
| <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">=</span> <span class="ident">history</span>.<span class="ident">len</span>(); |
| <span class="comment">// Restore current edited line</span> |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| } |
| <span class="ident">s</span>.<span class="ident">refresh_line</span>() |
| } |
| |
| <span class="doccomment">/// Completes the line/word</span> |
| <span class="kw">fn</span> <span class="ident">complete_line</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">RawReader</span><span class="op">></span>(<span class="ident">rdr</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">R</span>, |
| <span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, |
| <span class="ident">completer</span>: <span class="kw-2">&</span><span class="ident">Completer</span>, |
| <span class="ident">config</span>: <span class="kw-2">&</span><span class="ident">Config</span>) |
| <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Cmd</span><span class="op">>></span> { |
| <span class="comment">// get a list of completions</span> |
| <span class="kw">let</span> (<span class="ident">start</span>, <span class="ident">candidates</span>) <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">completer</span>.<span class="ident">complete</span>(<span class="kw-2">&</span><span class="ident">s</span>.<span class="ident">line</span>, <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">pos</span>())); |
| <span class="comment">// if no completions, we are done</span> |
| <span class="kw">if</span> <span class="ident">candidates</span>.<span class="ident">is_empty</span>() { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">beep</span>()); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">CompletionType</span>::<span class="ident">Circular</span> <span class="op">==</span> <span class="ident">config</span>.<span class="ident">completion_type</span>() { |
| <span class="comment">// Save the current edited line before to overwrite it</span> |
| <span class="ident">s</span>.<span class="ident">backup</span>(); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cmd</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">i</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="kw">loop</span> { |
| <span class="comment">// Show completion or original buffer</span> |
| <span class="kw">if</span> <span class="ident">i</span> <span class="op"><</span> <span class="ident">candidates</span>.<span class="ident">len</span>() { |
| <span class="ident">completer</span>.<span class="ident">update</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>.<span class="ident">line</span>, <span class="ident">start</span>, <span class="kw-2">&</span><span class="ident">candidates</span>[<span class="ident">i</span>]); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| } <span class="kw">else</span> { |
| <span class="comment">// Restore current edited line</span> |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| } |
| |
| <span class="ident">cmd</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">next_cmd</span>(<span class="ident">rdr</span>)); |
| <span class="kw">match</span> <span class="ident">cmd</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Complete</span> <span class="op">=></span> { |
| <span class="ident">i</span> <span class="op">=</span> (<span class="ident">i</span> <span class="op">+</span> <span class="number">1</span>) <span class="op">%</span> (<span class="ident">candidates</span>.<span class="ident">len</span>() <span class="op">+</span> <span class="number">1</span>); <span class="comment">// Circular</span> |
| <span class="kw">if</span> <span class="ident">i</span> <span class="op">==</span> <span class="ident">candidates</span>.<span class="ident">len</span>() { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">beep</span>()); |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Abort</span> <span class="op">=></span> { |
| <span class="comment">// Re-show original buffer</span> |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| <span class="kw">if</span> <span class="ident">i</span> <span class="op"><</span> <span class="ident">candidates</span>.<span class="ident">len</span>() { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| } |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>); |
| } |
| _ <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">i</span> <span class="op">==</span> <span class="ident">candidates</span>.<span class="ident">len</span>() { |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| } |
| <span class="kw">break</span>; |
| } |
| } |
| } |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">cmd</span>)) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">CompletionType</span>::<span class="ident">List</span> <span class="op">==</span> <span class="ident">config</span>.<span class="ident">completion_type</span>() { |
| <span class="comment">// beep if ambiguous</span> |
| <span class="kw">if</span> <span class="ident">candidates</span>.<span class="ident">len</span>() <span class="op">></span> <span class="number">1</span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">beep</span>()); |
| } |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">lcp</span>) <span class="op">=</span> <span class="ident">longest_common_prefix</span>(<span class="kw-2">&</span><span class="ident">candidates</span>) { |
| <span class="comment">// if we can extend the item, extend it and return to main loop</span> |
| <span class="kw">if</span> <span class="ident">lcp</span>.<span class="ident">len</span>() <span class="op">></span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">pos</span>() <span class="op">-</span> <span class="ident">start</span> { |
| <span class="ident">completer</span>.<span class="ident">update</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>.<span class="ident">line</span>, <span class="ident">start</span>, <span class="ident">lcp</span>); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>); |
| } |
| } |
| <span class="comment">// we can't complete any further, wait for second tab</span> |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cmd</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">next_cmd</span>(<span class="ident">rdr</span>)); |
| <span class="comment">// if any character other than tab, pass it to the main loop</span> |
| <span class="kw">if</span> <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">Complete</span> { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">cmd</span>)); |
| } |
| <span class="comment">// move cursor to EOL to avoid overwriting the command line</span> |
| <span class="kw">let</span> <span class="ident">save_pos</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">pos</span>(); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_end</span>(<span class="ident">s</span>)); |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">set_pos</span>(<span class="ident">save_pos</span>); |
| <span class="comment">// we got a second tab, maybe show list of possible completions</span> |
| <span class="kw">let</span> <span class="ident">show_completions</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">candidates</span>.<span class="ident">len</span>() <span class="op">></span> <span class="ident">config</span>.<span class="ident">completion_prompt_limit</span>() { |
| <span class="kw">let</span> <span class="ident">msg</span> <span class="op">=</span> <span class="macro">format</span><span class="macro">!</span>(<span class="string">"\nDisplay all {} possibilities? (y or n)"</span>, <span class="ident">candidates</span>.<span class="ident">len</span>()); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">write_and_flush</span>(<span class="ident">s</span>.<span class="ident">out</span>, <span class="ident">msg</span>.<span class="ident">as_bytes</span>())); |
| <span class="ident">s</span>.<span class="ident">old_rows</span> <span class="op">+=</span> <span class="number">1</span>; |
| <span class="kw">while</span> <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'y'</span>) <span class="op">&&</span> <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'Y'</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'n'</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'N'</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">BackwardChar</span>(<span class="number">1</span>)) { |
| <span class="ident">cmd</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">next_cmd</span>(<span class="ident">rdr</span>)); |
| } |
| <span class="kw">match</span> <span class="ident">cmd</span> { |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'y'</span>) <span class="op">|</span> |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'Y'</span>) <span class="op">=></span> <span class="bool-val">true</span>, |
| _ <span class="op">=></span> <span class="bool-val">false</span>, |
| } |
| } <span class="kw">else</span> { |
| <span class="bool-val">true</span> |
| }; |
| <span class="kw">if</span> <span class="ident">show_completions</span> { |
| <span class="ident">page_completions</span>(<span class="ident">rdr</span>, <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">candidates</span>) |
| } <span class="kw">else</span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">page_completions</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">RawReader</span><span class="op">></span>(<span class="ident">rdr</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">R</span>, |
| <span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, |
| <span class="ident">candidates</span>: <span class="kw-2">&</span>[<span class="ident">String</span>]) |
| <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Cmd</span><span class="op">>></span> { |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">cmp</span>; |
| |
| <span class="kw">let</span> <span class="ident">min_col_pad</span> <span class="op">=</span> <span class="number">2</span>; |
| <span class="kw">let</span> <span class="ident">max_width</span> <span class="op">=</span> <span class="ident">cmp</span>::<span class="ident">min</span>(<span class="ident">s</span>.<span class="ident">cols</span>, |
| <span class="ident">candidates</span> |
| .<span class="ident">into_iter</span>() |
| .<span class="ident">map</span>(<span class="op">|</span><span class="ident">s</span><span class="op">|</span> <span class="ident">s</span>.<span class="ident">as_str</span>().<span class="ident">width</span>()) |
| .<span class="ident">max</span>() |
| .<span class="ident">unwrap</span>() <span class="op">+</span> <span class="ident">min_col_pad</span>); |
| <span class="kw">let</span> <span class="ident">num_cols</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">cols</span> <span class="op">/</span> <span class="ident">max_width</span>; |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pause_row</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">term</span>.<span class="ident">get_rows</span>() <span class="op">-</span> <span class="number">1</span>; |
| <span class="kw">let</span> <span class="ident">num_rows</span> <span class="op">=</span> (<span class="ident">candidates</span>.<span class="ident">len</span>() <span class="op">+</span> <span class="ident">num_cols</span> <span class="op">-</span> <span class="number">1</span>) <span class="op">/</span> <span class="ident">num_cols</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ab</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">new</span>(); |
| <span class="kw">for</span> <span class="ident">row</span> <span class="kw">in</span> <span class="number">0</span>..<span class="ident">num_rows</span> { |
| <span class="kw">if</span> <span class="ident">row</span> <span class="op">==</span> <span class="ident">pause_row</span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">write_and_flush</span>(<span class="ident">s</span>.<span class="ident">out</span>, <span class="string">b"\n--More--"</span>)); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cmd</span> <span class="op">=</span> <span class="ident">Cmd</span>::<span class="ident">Noop</span>; |
| <span class="kw">while</span> <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'y'</span>) <span class="op">&&</span> <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1_</span>, <span class="string">'Y'</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'n'</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1_</span>, <span class="string">'N'</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'q'</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'Q'</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">' '</span>) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">BackwardChar</span>(<span class="number">1</span>)) <span class="op">&&</span> |
| <span class="ident">cmd</span> <span class="op">!=</span> <span class="ident">Cmd</span>::<span class="ident">AcceptLine</span> { |
| <span class="ident">cmd</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">next_cmd</span>(<span class="ident">rdr</span>)); |
| } |
| <span class="kw">match</span> <span class="ident">cmd</span> { |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'y'</span>) <span class="op">|</span> |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">'Y'</span>) <span class="op">|</span> |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="string">' '</span>) <span class="op">=></span> { |
| <span class="ident">pause_row</span> <span class="op">+=</span> <span class="ident">s</span>.<span class="ident">term</span>.<span class="ident">get_rows</span>() <span class="op">-</span> <span class="number">1</span>; |
| } |
| <span class="ident">Cmd</span>::<span class="ident">AcceptLine</span> <span class="op">=></span> { |
| <span class="ident">pause_row</span> <span class="op">+=</span> <span class="number">1</span>; |
| } |
| _ <span class="op">=></span> <span class="kw">break</span>, |
| } |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">write_and_flush</span>(<span class="ident">s</span>.<span class="ident">out</span>, <span class="string">b"\n"</span>)); |
| } <span class="kw">else</span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">write_and_flush</span>(<span class="ident">s</span>.<span class="ident">out</span>, <span class="string">b"\n"</span>)); |
| } |
| <span class="ident">ab</span>.<span class="ident">clear</span>(); |
| <span class="kw">for</span> <span class="ident">col</span> <span class="kw">in</span> <span class="number">0</span>..<span class="ident">num_cols</span> { |
| <span class="kw">let</span> <span class="ident">i</span> <span class="op">=</span> (<span class="ident">col</span> <span class="op">*</span> <span class="ident">num_rows</span>) <span class="op">+</span> <span class="ident">row</span>; |
| <span class="kw">if</span> <span class="ident">i</span> <span class="op"><</span> <span class="ident">candidates</span>.<span class="ident">len</span>() { |
| <span class="kw">let</span> <span class="ident">candidate</span> <span class="op">=</span> <span class="kw-2">&</span><span class="ident">candidates</span>[<span class="ident">i</span>]; |
| <span class="ident">ab</span>.<span class="ident">push_str</span>(<span class="ident">candidate</span>); |
| <span class="kw">let</span> <span class="ident">width</span> <span class="op">=</span> <span class="ident">candidate</span>.<span class="ident">as_str</span>().<span class="ident">width</span>(); |
| <span class="kw">if</span> ((<span class="ident">col</span> <span class="op">+</span> <span class="number">1</span>) <span class="op">*</span> <span class="ident">num_rows</span>) <span class="op">+</span> <span class="ident">row</span> <span class="op"><</span> <span class="ident">candidates</span>.<span class="ident">len</span>() { |
| <span class="kw">for</span> _ <span class="kw">in</span> <span class="ident">width</span>..<span class="ident">max_width</span> { |
| <span class="ident">ab</span>.<span class="ident">push</span>(<span class="string">' '</span>); |
| } |
| } |
| } |
| } |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">write_and_flush</span>(<span class="ident">s</span>.<span class="ident">out</span>, <span class="ident">ab</span>.<span class="ident">as_bytes</span>())); |
| } |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">write_and_flush</span>(<span class="ident">s</span>.<span class="ident">out</span>, <span class="string">b"\n"</span>)); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| |
| <span class="doccomment">/// Incremental search</span> |
| <span class="kw">fn</span> <span class="ident">reverse_incremental_search</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">RawReader</span><span class="op">></span>(<span class="ident">rdr</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">R</span>, |
| <span class="ident">s</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">State</span>, |
| <span class="ident">history</span>: <span class="kw-2">&</span><span class="ident">History</span>) |
| <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Cmd</span><span class="op">>></span> { |
| <span class="kw">if</span> <span class="ident">history</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>); |
| } |
| <span class="comment">// Save the current edited line (and cursor position) before to overwrite it</span> |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">search_buf</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">new</span>(); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">history_idx</span> <span class="op">=</span> <span class="ident">history</span>.<span class="ident">len</span>() <span class="op">-</span> <span class="number">1</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">direction</span> <span class="op">=</span> <span class="ident">Direction</span>::<span class="ident">Reverse</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">success</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cmd</span>; |
| <span class="comment">// Display the reverse-i-search prompt and process chars</span> |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">prompt</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">success</span> { |
| <span class="macro">format</span><span class="macro">!</span>(<span class="string">"(reverse-i-search)`{}': "</span>, <span class="ident">search_buf</span>) |
| } <span class="kw">else</span> { |
| <span class="macro">format</span><span class="macro">!</span>(<span class="string">"(failed reverse-i-search)`{}': "</span>, <span class="ident">search_buf</span>) |
| }; |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_prompt_and_line</span>(<span class="kw-2">&</span><span class="ident">prompt</span>)); |
| |
| <span class="ident">cmd</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">next_cmd</span>(<span class="ident">rdr</span>)); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(_, <span class="ident">c</span>) <span class="op">=</span> <span class="ident">cmd</span> { |
| <span class="ident">search_buf</span>.<span class="ident">push</span>(<span class="ident">c</span>); |
| } <span class="kw">else</span> { |
| <span class="kw">match</span> <span class="ident">cmd</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">BackwardChar</span>(_)) <span class="op">=></span> { |
| <span class="ident">search_buf</span>.<span class="ident">pop</span>(); |
| <span class="kw">continue</span>; |
| } |
| <span class="ident">Cmd</span>::<span class="ident">ReverseSearchHistory</span> <span class="op">=></span> { |
| <span class="ident">direction</span> <span class="op">=</span> <span class="ident">Direction</span>::<span class="ident">Reverse</span>; |
| <span class="kw">if</span> <span class="ident">history_idx</span> <span class="op">></span> <span class="number">0</span> { |
| <span class="ident">history_idx</span> <span class="op">-=</span> <span class="number">1</span>; |
| } <span class="kw">else</span> { |
| <span class="ident">success</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="kw">continue</span>; |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">ForwardSearchHistory</span> <span class="op">=></span> { |
| <span class="ident">direction</span> <span class="op">=</span> <span class="ident">Direction</span>::<span class="ident">Forward</span>; |
| <span class="kw">if</span> <span class="ident">history_idx</span> <span class="op"><</span> <span class="ident">history</span>.<span class="ident">len</span>() <span class="op">-</span> <span class="number">1</span> { |
| <span class="ident">history_idx</span> <span class="op">+=</span> <span class="number">1</span>; |
| } <span class="kw">else</span> { |
| <span class="ident">success</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="kw">continue</span>; |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Abort</span> <span class="op">=></span> { |
| <span class="comment">// Restore current edited line (before search)</span> |
| <span class="ident">s</span>.<span class="ident">snapshot</span>(); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>); |
| } |
| _ <span class="op">=></span> <span class="kw">break</span>, |
| } |
| } |
| <span class="ident">success</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">history</span>.<span class="ident">search</span>(<span class="kw-2">&</span><span class="ident">search_buf</span>, <span class="ident">history_idx</span>, <span class="ident">direction</span>) { |
| <span class="prelude-val">Some</span>(<span class="ident">idx</span>) <span class="op">=></span> { |
| <span class="ident">history_idx</span> <span class="op">=</span> <span class="ident">idx</span>; |
| <span class="kw">let</span> <span class="ident">entry</span> <span class="op">=</span> <span class="ident">history</span>.<span class="ident">get</span>(<span class="ident">idx</span>).<span class="ident">unwrap</span>(); |
| <span class="kw">let</span> <span class="ident">pos</span> <span class="op">=</span> <span class="ident">entry</span>.<span class="ident">find</span>(<span class="kw-2">&</span><span class="ident">search_buf</span>).<span class="ident">unwrap</span>(); |
| <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">update</span>(<span class="ident">entry</span>, <span class="ident">pos</span>); |
| <span class="bool-val">true</span> |
| } |
| _ <span class="op">=></span> <span class="bool-val">false</span>, |
| }; |
| } |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">cmd</span>)) |
| } |
| |
| <span class="doccomment">/// Handles reading and editting the readline buffer.</span> |
| <span class="doccomment">/// It will also handle special inputs in an appropriate fashion</span> |
| <span class="doccomment">/// (e.g., C-c will exit readline)</span> |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">let_unit_value</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">readline_edit</span><span class="op"><</span><span class="ident">C</span>: <span class="ident">Completer</span><span class="op">></span>(<span class="ident">prompt</span>: <span class="kw-2">&</span><span class="ident">str</span>, |
| <span class="ident">editor</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Editor</span><span class="op"><</span><span class="ident">C</span><span class="op">></span>, |
| <span class="ident">original_mode</span>: <span class="ident">tty</span>::<span class="ident">Mode</span>) |
| <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">completer</span> <span class="op">=</span> <span class="ident">editor</span>.<span class="ident">completer</span>.<span class="ident">as_ref</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">c</span><span class="op">|</span> <span class="ident">c</span> <span class="kw">as</span> <span class="kw-2">&</span><span class="ident">Completer</span>); |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">stdout</span> <span class="op">=</span> <span class="ident">editor</span>.<span class="ident">term</span>.<span class="ident">create_writer</span>(); |
| |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">reset</span>(); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">State</span>::<span class="ident">new</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">stdout</span>, |
| <span class="ident">editor</span>.<span class="ident">term</span>.<span class="ident">clone</span>(), |
| <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">config</span>, |
| <span class="ident">prompt</span>, |
| <span class="ident">editor</span>.<span class="ident">history</span>.<span class="ident">len</span>(), |
| <span class="ident">editor</span>.<span class="ident">custom_bindings</span>.<span class="ident">clone</span>()); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rdr</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">term</span>.<span class="ident">create_reader</span>(<span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">config</span>)); |
| |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">rc</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">next_cmd</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">rdr</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cmd</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rc</span>); |
| |
| <span class="kw">if</span> <span class="ident">cmd</span>.<span class="ident">should_reset_kill_ring</span>() { |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">reset</span>(); |
| } |
| |
| <span class="comment">// autocomplete</span> |
| <span class="kw">if</span> <span class="ident">cmd</span> <span class="op">==</span> <span class="ident">Cmd</span>::<span class="ident">Complete</span> <span class="op">&&</span> <span class="ident">completer</span>.<span class="ident">is_some</span>() { |
| <span class="kw">let</span> <span class="ident">next</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">complete_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">rdr</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">completer</span>.<span class="ident">unwrap</span>(), <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">config</span>)); |
| <span class="kw">if</span> <span class="ident">next</span>.<span class="ident">is_some</span>() { |
| <span class="ident">cmd</span> <span class="op">=</span> <span class="ident">next</span>.<span class="ident">unwrap</span>(); |
| } <span class="kw">else</span> { |
| <span class="kw">continue</span>; |
| } |
| } |
| |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="ident">n</span>, <span class="ident">c</span>) <span class="op">=</span> <span class="ident">cmd</span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_insert</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">c</span>, <span class="ident">n</span>)); |
| <span class="kw">continue</span>; |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Cmd</span>::<span class="ident">Insert</span>(<span class="ident">n</span>, <span class="ident">text</span>) <span class="op">=</span> <span class="ident">cmd</span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_yank</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">text</span>, <span class="ident">Anchor</span>::<span class="ident">Before</span>, <span class="ident">n</span>)); |
| <span class="kw">continue</span>; |
| } |
| |
| <span class="kw">if</span> <span class="ident">cmd</span> <span class="op">==</span> <span class="ident">Cmd</span>::<span class="ident">ReverseSearchHistory</span> { |
| <span class="comment">// Search history backward</span> |
| <span class="kw">let</span> <span class="ident">next</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">reverse_incremental_search</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">rdr</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">history</span>)); |
| <span class="kw">if</span> <span class="ident">next</span>.<span class="ident">is_some</span>() { |
| <span class="ident">cmd</span> <span class="op">=</span> <span class="ident">next</span>.<span class="ident">unwrap</span>(); |
| } <span class="kw">else</span> { |
| <span class="kw">continue</span>; |
| } |
| } |
| |
| <span class="kw">match</span> <span class="ident">cmd</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>) <span class="op">=></span> { |
| <span class="comment">// Move to the beginning of line.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_home</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">ViFirstPrint</span>) <span class="op">=></span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_home</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_to_next_word</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">At</span>::<span class="ident">Start</span>, <span class="ident">Word</span>::<span class="ident">Big</span>, <span class="number">1</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">BackwardChar</span>(<span class="ident">n</span>)) <span class="op">=></span> { |
| <span class="comment">// Move back a character.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_backward</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">n</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">ForwardChar</span>(<span class="ident">n</span>)) <span class="op">=></span> { |
| <span class="comment">// Delete (forward) one character at point.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_delete</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">n</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Replace</span>(<span class="ident">n</span>, <span class="ident">c</span>) <span class="op">=></span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_replace_char</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">c</span>, <span class="ident">n</span>)); |
| } |
| <span class="ident">Cmd</span>::<span class="ident">EndOfFile</span> <span class="op">=></span> { |
| <span class="kw">if</span> <span class="op">!</span><span class="ident">s</span>.<span class="ident">edit_state</span>.<span class="ident">is_emacs_mode</span>() <span class="op">&&</span> <span class="op">!</span><span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">is_empty</span>() { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_end</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)); |
| <span class="kw">break</span>; |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">error</span>::<span class="ident">ReadlineError</span>::<span class="ident">Eof</span>); |
| } <span class="kw">else</span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_delete</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="number">1</span>)) |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>) <span class="op">=></span> { |
| <span class="comment">// Move to the end of line.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_end</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">ForwardChar</span>(<span class="ident">n</span>)) <span class="op">=></span> { |
| <span class="comment">// Move forward a character.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_forward</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">n</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">BackwardChar</span>(<span class="ident">n</span>)) <span class="op">=></span> { |
| <span class="comment">// Delete one character backward.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_backspace</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">n</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>) <span class="op">=></span> { |
| <span class="comment">// Kill the text from point to the end of the line.</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_kill_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)) { |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">kill</span>(<span class="kw-2">&</span><span class="ident">text</span>, <span class="ident">Mode</span>::<span class="ident">Append</span>) |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">WholeLine</span>) <span class="op">=></span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_home</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_kill_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)) { |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">kill</span>(<span class="kw-2">&</span><span class="ident">text</span>, <span class="ident">Mode</span>::<span class="ident">Append</span>) |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">ClearScreen</span> <span class="op">=></span> { |
| <span class="comment">// Clear the screen leaving the current line at the top of the screen.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">term</span>.<span class="ident">clear_screen</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>.<span class="ident">out</span>)); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">NextHistory</span> <span class="op">=></span> { |
| <span class="comment">// Fetch the next command from the history list.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_history_next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">history</span>, <span class="bool-val">false</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">PreviousHistory</span> <span class="op">=></span> { |
| <span class="comment">// Fetch the previous command from the history list.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_history_next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">history</span>, <span class="bool-val">true</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">HistorySearchBackward</span> <span class="op">=></span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_history_search</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">history</span>, <span class="ident">Direction</span>::<span class="ident">Reverse</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">HistorySearchForward</span> <span class="op">=></span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_history_search</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">history</span>, <span class="ident">Direction</span>::<span class="ident">Forward</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">TransposeChars</span> <span class="op">=></span> { |
| <span class="comment">// Exchange the char before cursor with the character at cursor.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_transpose_chars</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>) <span class="op">=></span> { |
| <span class="comment">// Kill backward from point to the beginning of the line.</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_discard_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)) { |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">kill</span>(<span class="kw-2">&</span><span class="ident">text</span>, <span class="ident">Mode</span>::<span class="ident">Prepend</span>) |
| } |
| } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">unix</span>)]</span> |
| <span class="ident">Cmd</span>::<span class="ident">QuotedInsert</span> <span class="op">=></span> { |
| <span class="comment">// Quoted insert</span> |
| <span class="kw">let</span> <span class="ident">c</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_char</span>()); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_insert</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">c</span>, <span class="number">1</span>)) <span class="comment">// FIXME</span> |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Yank</span>(<span class="ident">n</span>, <span class="ident">anchor</span>) <span class="op">=></span> { |
| <span class="comment">// retrieve (yank) last item killed</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">yank</span>() { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_yank</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">text</span>, <span class="ident">anchor</span>, <span class="ident">n</span>)) |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">ViYankTo</span>(<span class="ident">mvt</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">copy</span>(<span class="ident">mvt</span>) { |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">kill</span>(<span class="kw-2">&</span><span class="ident">text</span>, <span class="ident">Mode</span>::<span class="ident">Append</span>) |
| } |
| } |
| <span class="comment">// TODO CTRL-_ // undo</span> |
| <span class="ident">Cmd</span>::<span class="ident">AcceptLine</span> <span class="op">=></span> { |
| <span class="comment">// Accept the line regardless of where the cursor is.</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_end</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>)); |
| <span class="kw">break</span>; |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">BackwardWord</span>(<span class="ident">n</span>, <span class="ident">word_def</span>)) <span class="op">=></span> { |
| <span class="comment">// kill one word backward (until start of word)</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_delete_prev_word</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">word_def</span>, <span class="ident">n</span>)) { |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">kill</span>(<span class="kw-2">&</span><span class="ident">text</span>, <span class="ident">Mode</span>::<span class="ident">Prepend</span>) |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">BeginningOfHistory</span> <span class="op">=></span> { |
| <span class="comment">// move to first entry in history</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_history</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">history</span>, <span class="bool-val">true</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">EndOfHistory</span> <span class="op">=></span> { |
| <span class="comment">// move to last entry in history</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_history</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">editor</span>.<span class="ident">history</span>, <span class="bool-val">false</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">BackwardWord</span>(<span class="ident">n</span>, <span class="ident">word_def</span>)) <span class="op">=></span> { |
| <span class="comment">// move backwards one word</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_to_prev_word</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">word_def</span>, <span class="ident">n</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">CapitalizeWord</span> <span class="op">=></span> { |
| <span class="comment">// capitalize word after point</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_word</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">WordAction</span>::<span class="ident">CAPITALIZE</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">n</span>, <span class="ident">at</span>, <span class="ident">word_def</span>)) <span class="op">=></span> { |
| <span class="comment">// kill one word forward (until start/end of word)</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_delete_word</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">at</span>, <span class="ident">word_def</span>, <span class="ident">n</span>)) { |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">kill</span>(<span class="kw-2">&</span><span class="ident">text</span>, <span class="ident">Mode</span>::<span class="ident">Append</span>) |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">n</span>, <span class="ident">at</span>, <span class="ident">word_def</span>)) <span class="op">=></span> { |
| <span class="comment">// move forwards one word</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_to_next_word</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">at</span>, <span class="ident">word_def</span>, <span class="ident">n</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">DowncaseWord</span> <span class="op">=></span> { |
| <span class="comment">// lowercase word after point</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_word</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">WordAction</span>::<span class="ident">LOWERCASE</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">TransposeWords</span>(<span class="ident">n</span>) <span class="op">=></span> { |
| <span class="comment">// transpose words</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_transpose_words</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">n</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">UpcaseWord</span> <span class="op">=></span> { |
| <span class="comment">// uppercase word after point</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_word</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">WordAction</span>::<span class="ident">UPPERCASE</span>)) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">YankPop</span> <span class="op">=></span> { |
| <span class="comment">// yank-pop</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">yank_size</span>, <span class="ident">text</span>)) <span class="op">=</span> <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">yank_pop</span>() { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_yank_pop</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">yank_size</span>, <span class="ident">text</span>)) |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">ViCharSearch</span>(<span class="ident">n</span>, <span class="ident">cs</span>)) <span class="op">=></span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_move_to</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">cs</span>, <span class="ident">n</span>)), |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">ViCharSearch</span>(<span class="ident">n</span>, <span class="ident">cs</span>)) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">text</span>) <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">edit_delete_to</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="ident">cs</span>, <span class="ident">n</span>)) { |
| <span class="ident">editor</span>.<span class="ident">kill_ring</span>.<span class="ident">kill</span>(<span class="kw-2">&</span><span class="ident">text</span>, <span class="ident">Mode</span>::<span class="ident">Append</span>) |
| } |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Interrupt</span> <span class="op">=></span> { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">error</span>::<span class="ident">ReadlineError</span>::<span class="ident">Interrupted</span>); |
| } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">unix</span>)]</span> |
| <span class="ident">Cmd</span>::<span class="ident">Suspend</span> <span class="op">=></span> { |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">original_mode</span>.<span class="ident">disable_raw_mode</span>()); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">tty</span>::<span class="ident">suspend</span>()); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">term</span>.<span class="ident">enable_raw_mode</span>()); <span class="comment">// TODO original_mode may have changed</span> |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">refresh_line</span>()); |
| <span class="kw">continue</span>; |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Noop</span> <span class="op">=></span> {} |
| _ <span class="op">=></span> { |
| <span class="comment">// Ignore the character typed.</span> |
| } |
| } |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">into_string</span>()) |
| } |
| |
| <span class="kw">struct</span> <span class="ident">Guard</span>(<span class="ident">tty</span>::<span class="ident">Mode</span>); |
| |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">unused_must_use</span>)]</span> |
| <span class="kw">impl</span> <span class="ident">Drop</span> <span class="kw">for</span> <span class="ident">Guard</span> { |
| <span class="kw">fn</span> <span class="ident">drop</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { |
| <span class="kw">let</span> <span class="ident">Guard</span>(<span class="ident">mode</span>) <span class="op">=</span> <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="ident">mode</span>.<span class="ident">disable_raw_mode</span>(); |
| } |
| } |
| |
| <span class="doccomment">/// Readline method that will enable RAW mode, call the `readline_edit()`</span> |
| <span class="doccomment">/// method and disable raw mode</span> |
| <span class="kw">fn</span> <span class="ident">readline_raw</span><span class="op"><</span><span class="ident">C</span>: <span class="ident">Completer</span><span class="op">></span>(<span class="ident">prompt</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">editor</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Editor</span><span class="op"><</span><span class="ident">C</span><span class="op">></span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">original_mode</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">editor</span>.<span class="ident">term</span>.<span class="ident">enable_raw_mode</span>()); |
| <span class="kw">let</span> <span class="ident">guard</span> <span class="op">=</span> <span class="ident">Guard</span>(<span class="ident">original_mode</span>); |
| <span class="kw">let</span> <span class="ident">user_input</span> <span class="op">=</span> <span class="ident">readline_edit</span>(<span class="ident">prompt</span>, <span class="ident">editor</span>, <span class="ident">original_mode</span>); |
| <span class="ident">drop</span>(<span class="ident">guard</span>); <span class="comment">// try!(disable_raw_mode(original_mode));</span> |
| <span class="macro">println</span><span class="macro">!</span>(<span class="string">""</span>); |
| <span class="ident">user_input</span> |
| } |
| |
| <span class="kw">fn</span> <span class="ident">readline_direct</span>() <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">line</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">new</span>(); |
| <span class="kw">if</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">io</span>::<span class="ident">stdin</span>().<span class="ident">read_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">line</span>)) <span class="op">></span> <span class="number">0</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">line</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Err</span>(<span class="ident">error</span>::<span class="ident">ReadlineError</span>::<span class="ident">Eof</span>) |
| } |
| } |
| |
| <span class="doccomment">/// Line editor</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Editor</span><span class="op"><</span><span class="ident">C</span>: <span class="ident">Completer</span><span class="op">></span> { |
| <span class="ident">term</span>: <span class="ident">Terminal</span>, |
| <span class="ident">history</span>: <span class="ident">History</span>, |
| <span class="ident">completer</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">C</span><span class="op">></span>, |
| <span class="ident">kill_ring</span>: <span class="ident">KillRing</span>, |
| <span class="ident">config</span>: <span class="ident">Config</span>, |
| <span class="ident">custom_bindings</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">RefCell</span><span class="op"><</span><span class="ident">HashMap</span><span class="op"><</span><span class="ident">KeyPress</span>, <span class="ident">Cmd</span><span class="op">>></span><span class="op">></span>, |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="ident">C</span>: <span class="ident">Completer</span><span class="op">></span> <span class="ident">Editor</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> { |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>() <span class="op">-></span> <span class="ident">Editor</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> { |
| <span class="self">Self</span>::<span class="ident">with_config</span>(<span class="ident">Config</span>::<span class="ident">default</span>()) |
| } |
| |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">with_config</span>(<span class="ident">config</span>: <span class="ident">Config</span>) <span class="op">-></span> <span class="ident">Editor</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">term</span> <span class="op">=</span> <span class="ident">Terminal</span>::<span class="ident">new</span>(); |
| <span class="ident">Editor</span> { |
| <span class="ident">term</span>: <span class="ident">term</span>, |
| <span class="ident">history</span>: <span class="ident">History</span>::<span class="ident">with_config</span>(<span class="ident">config</span>), |
| <span class="ident">completer</span>: <span class="prelude-val">None</span>, |
| <span class="ident">kill_ring</span>: <span class="ident">KillRing</span>::<span class="ident">new</span>(<span class="number">60</span>), |
| <span class="ident">config</span>: <span class="ident">config</span>, |
| <span class="ident">custom_bindings</span>: <span class="ident">Rc</span>::<span class="ident">new</span>(<span class="ident">RefCell</span>::<span class="ident">new</span>(<span class="ident">HashMap</span>::<span class="ident">new</span>())), |
| } |
| } |
| |
| <span class="doccomment">/// This method will read a line from STDIN and will display a `prompt`</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">readline</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">prompt</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="self">self</span>.<span class="ident">term</span>.<span class="ident">is_unsupported</span>() { |
| <span class="macro">debug</span><span class="macro">!</span>(<span class="ident">target</span>: <span class="string">"rustyline"</span>, <span class="string">"unsupported terminal"</span>); |
| <span class="comment">// Write prompt and flush it to stdout</span> |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">stdout</span> <span class="op">=</span> <span class="ident">io</span>::<span class="ident">stdout</span>(); |
| <span class="macro">try</span><span class="macro">!</span>(<span class="ident">write_and_flush</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">stdout</span>, <span class="ident">prompt</span>.<span class="ident">as_bytes</span>())); |
| |
| <span class="ident">readline_direct</span>() |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">term</span>.<span class="ident">is_stdin_tty</span>() { |
| <span class="macro">debug</span><span class="macro">!</span>(<span class="ident">target</span>: <span class="string">"rustyline"</span>, <span class="string">"stdin is not a tty"</span>); |
| <span class="comment">// Not a tty: read from file / pipe.</span> |
| <span class="ident">readline_direct</span>() |
| } <span class="kw">else</span> { |
| <span class="ident">readline_raw</span>(<span class="ident">prompt</span>, <span class="self">self</span>) |
| } |
| } |
| |
| <span class="doccomment">/// Load the history from the specified file.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">load_history</span><span class="op"><</span><span class="ident">P</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">Path</span><span class="op">></span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">path</span>: <span class="kw-2">&</span><span class="ident">P</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">history</span>.<span class="ident">load</span>(<span class="ident">path</span>) |
| } |
| <span class="doccomment">/// Save the history in the specified file.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">save_history</span><span class="op"><</span><span class="ident">P</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">Path</span><span class="op">></span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">path</span>: <span class="kw-2">&</span><span class="ident">P</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">history</span>.<span class="ident">save</span>(<span class="ident">path</span>) |
| } |
| <span class="doccomment">/// Add a new entry in the history.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">add_history_entry</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">str</span><span class="op">></span> <span class="op">+</span> <span class="ident">Into</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">line</span>: <span class="ident">S</span>) <span class="op">-></span> <span class="ident">bool</span> { |
| <span class="self">self</span>.<span class="ident">history</span>.<span class="ident">add</span>(<span class="ident">line</span>) |
| } |
| <span class="doccomment">/// Clear history.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">clear_history</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { |
| <span class="self">self</span>.<span class="ident">history</span>.<span class="ident">clear</span>() |
| } |
| <span class="doccomment">/// Return a mutable reference to the history object.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_history</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">History</span> { |
| <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">history</span> |
| } |
| <span class="doccomment">/// Return an immutable reference to the history object.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_history_const</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">History</span> { |
| <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">history</span> |
| } |
| |
| <span class="doccomment">/// Register a callback function to be called for tab-completion.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_completer</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">completer</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">C</span><span class="op">></span>) { |
| <span class="self">self</span>.<span class="ident">completer</span> <span class="op">=</span> <span class="ident">completer</span>; |
| } |
| |
| <span class="doccomment">/// Bind a sequence to a command.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bind_sequence</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key_seq</span>: <span class="ident">KeyPress</span>, <span class="ident">cmd</span>: <span class="ident">Cmd</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Cmd</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">custom_bindings</span>.<span class="ident">borrow_mut</span>().<span class="ident">insert</span>(<span class="ident">key_seq</span>, <span class="ident">cmd</span>) |
| } |
| <span class="doccomment">/// Remove a binding for the given sequence.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">unbind_sequence</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key_seq</span>: <span class="ident">KeyPress</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Cmd</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">custom_bindings</span>.<span class="ident">borrow_mut</span>().<span class="ident">remove</span>(<span class="kw-2">&</span><span class="ident">key_seq</span>) |
| } |
| |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// let mut rl = rustyline::Editor::<()>::new();</span> |
| <span class="doccomment">/// for readline in rl.iter("> ") {</span> |
| <span class="doccomment">/// match readline {</span> |
| <span class="doccomment">/// Ok(line) => {</span> |
| <span class="doccomment">/// println!("Line: {}", line);</span> |
| <span class="doccomment">/// },</span> |
| <span class="doccomment">/// Err(err) => {</span> |
| <span class="doccomment">/// println!("Error: {:?}", err);</span> |
| <span class="doccomment">/// break</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">iter</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span>(<span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">prompt</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">str</span>) <span class="op">-></span> <span class="ident">Iter</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> { |
| <span class="ident">Iter</span> { |
| <span class="ident">editor</span>: <span class="self">self</span>, |
| <span class="ident">prompt</span>: <span class="ident">prompt</span>, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="ident">C</span>: <span class="ident">Completer</span><span class="op">></span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">Editor</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { |
| <span class="ident">f</span>.<span class="ident">debug_struct</span>(<span class="string">"Editor"</span>) |
| .<span class="ident">field</span>(<span class="string">"term"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">term</span>) |
| .<span class="ident">field</span>(<span class="string">"config"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">config</span>) |
| .<span class="ident">finish</span>() |
| } |
| } |
| |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Iter</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">C</span>: <span class="ident">Completer</span><span class="op">></span> |
| <span class="kw">where</span> <span class="ident">C</span>: <span class="lifetime">'a</span> |
| { |
| <span class="ident">editor</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> <span class="ident">Editor</span><span class="op"><</span><span class="ident">C</span><span class="op">></span>, |
| <span class="ident">prompt</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">str</span>, |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">C</span>: <span class="ident">Completer</span><span class="op">></span> <span class="ident">Iterator</span> <span class="kw">for</span> <span class="ident">Iter</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">C</span><span class="op">></span> { |
| <span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">String</span><span class="op">></span>; |
| |
| <span class="kw">fn</span> <span class="ident">next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span> { |
| <span class="kw">let</span> <span class="ident">readline</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">editor</span>.<span class="ident">readline</span>(<span class="self">self</span>.<span class="ident">prompt</span>); |
| <span class="kw">match</span> <span class="ident">readline</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">l</span>) <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">editor</span>.<span class="ident">add_history_entry</span>(<span class="ident">l</span>.<span class="ident">as_ref</span>()); <span class="comment">// TODO Validate</span> |
| <span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>(<span class="ident">l</span>)) |
| } |
| <span class="prelude-val">Err</span>(<span class="ident">error</span>::<span class="ident">ReadlineError</span>::<span class="ident">Eof</span>) <span class="op">=></span> <span class="prelude-val">None</span>, |
| <span class="ident">e</span> @ <span class="prelude-val">Err</span>(_) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">e</span>), |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span> |
| <span class="kw">mod</span> <span class="ident">test</span> { |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">cell</span>::<span class="ident">RefCell</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">HashMap</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::<span class="ident">Write</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">rc</span>::<span class="ident">Rc</span>; |
| <span class="kw">use</span> <span class="ident">line_buffer</span>::<span class="ident">LineBuffer</span>; |
| <span class="kw">use</span> <span class="ident">history</span>::<span class="ident">History</span>; |
| <span class="kw">use</span> <span class="ident">completion</span>::<span class="ident">Completer</span>; |
| <span class="kw">use</span> <span class="ident">config</span>::<span class="ident">Config</span>; |
| <span class="kw">use</span> <span class="ident">consts</span>::<span class="ident">KeyPress</span>; |
| <span class="kw">use</span> <span class="ident">keymap</span>::{<span class="ident">Cmd</span>, <span class="ident">EditState</span>}; |
| <span class="kw">use</span> <span class="kw">super</span>::{<span class="ident">Editor</span>, <span class="ident">Position</span>, <span class="prelude-ty">Result</span>, <span class="ident">State</span>}; |
| <span class="kw">use</span> <span class="ident">tty</span>::{<span class="ident">Terminal</span>, <span class="ident">Term</span>}; |
| |
| <span class="kw">fn</span> <span class="ident">init_state</span><span class="op"><</span><span class="lifetime">'out</span><span class="op">></span>(<span class="ident">out</span>: <span class="kw-2">&</span><span class="lifetime">'out</span> <span class="kw-2">mut</span> <span class="ident">Write</span>, |
| <span class="ident">line</span>: <span class="kw-2">&</span><span class="ident">str</span>, |
| <span class="ident">pos</span>: <span class="ident">usize</span>, |
| <span class="ident">cols</span>: <span class="ident">usize</span>) |
| <span class="op">-></span> <span class="ident">State</span><span class="op"><</span><span class="lifetime">'out</span>, <span class="lifetime">'static</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">term</span> <span class="op">=</span> <span class="ident">Terminal</span>::<span class="ident">new</span>(); |
| <span class="kw">let</span> <span class="ident">config</span> <span class="op">=</span> <span class="ident">Config</span>::<span class="ident">default</span>(); |
| <span class="ident">State</span> { |
| <span class="ident">out</span>: <span class="ident">out</span>, |
| <span class="ident">prompt</span>: <span class="string">""</span>, |
| <span class="ident">prompt_size</span>: <span class="ident">Position</span>::<span class="ident">default</span>(), |
| <span class="ident">line</span>: <span class="ident">LineBuffer</span>::<span class="ident">init</span>(<span class="ident">line</span>, <span class="ident">pos</span>), |
| <span class="ident">cursor</span>: <span class="ident">Position</span>::<span class="ident">default</span>(), |
| <span class="ident">cols</span>: <span class="ident">cols</span>, |
| <span class="ident">old_rows</span>: <span class="number">0</span>, |
| <span class="ident">history_index</span>: <span class="number">0</span>, |
| <span class="ident">snapshot</span>: <span class="ident">LineBuffer</span>::<span class="ident">with_capacity</span>(<span class="number">100</span>), |
| <span class="ident">term</span>: <span class="ident">term</span>, |
| <span class="ident">edit_state</span>: <span class="ident">EditState</span>::<span class="ident">new</span>(<span class="kw-2">&</span><span class="ident">config</span>, <span class="ident">Rc</span>::<span class="ident">new</span>(<span class="ident">RefCell</span>::<span class="ident">new</span>(<span class="ident">HashMap</span>::<span class="ident">new</span>()))), |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">init_editor</span>(<span class="ident">keys</span>: <span class="kw-2">&</span>[<span class="ident">KeyPress</span>]) <span class="op">-></span> <span class="ident">Editor</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">editor</span> <span class="op">=</span> <span class="ident">Editor</span>::<span class="op"><</span>()<span class="op">></span>::<span class="ident">new</span>(); |
| <span class="ident">editor</span>.<span class="ident">term</span>.<span class="ident">keys</span>.<span class="ident">extend</span>(<span class="ident">keys</span>.<span class="ident">iter</span>().<span class="ident">cloned</span>()); |
| <span class="ident">editor</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">edit_history_next</span>() { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">out</span> <span class="op">=</span> ::<span class="ident">std</span>::<span class="ident">io</span>::<span class="ident">sink</span>(); |
| <span class="kw">let</span> <span class="ident">line</span> <span class="op">=</span> <span class="string">"current edited line"</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">init_state</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>, <span class="ident">line</span>, <span class="number">6</span>, <span class="number">80</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">history</span> <span class="op">=</span> <span class="ident">History</span>::<span class="ident">new</span>(); |
| <span class="ident">history</span>.<span class="ident">add</span>(<span class="string">"line0"</span>); |
| <span class="ident">history</span>.<span class="ident">add</span>(<span class="string">"line1"</span>); |
| <span class="ident">s</span>.<span class="ident">history_index</span> <span class="op">=</span> <span class="ident">history</span>.<span class="ident">len</span>(); |
| |
| <span class="kw">for</span> _ <span class="kw">in</span> <span class="number">0</span>..<span class="number">2</span> { |
| <span class="kw">super</span>::<span class="ident">edit_history_next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">history</span>, <span class="bool-val">false</span>).<span class="ident">unwrap</span>(); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">line</span>, <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">as_str</span>()); |
| } |
| |
| <span class="kw">super</span>::<span class="ident">edit_history_next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">history</span>, <span class="bool-val">true</span>).<span class="ident">unwrap</span>(); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">line</span>, <span class="ident">s</span>.<span class="ident">snapshot</span>.<span class="ident">as_str</span>()); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">1</span>, <span class="ident">s</span>.<span class="ident">history_index</span>); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"line1"</span>, <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">as_str</span>()); |
| |
| <span class="kw">for</span> _ <span class="kw">in</span> <span class="number">0</span>..<span class="number">2</span> { |
| <span class="kw">super</span>::<span class="ident">edit_history_next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">history</span>, <span class="bool-val">true</span>).<span class="ident">unwrap</span>(); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">line</span>, <span class="ident">s</span>.<span class="ident">snapshot</span>.<span class="ident">as_str</span>()); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">s</span>.<span class="ident">history_index</span>); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"line0"</span>, <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">as_str</span>()); |
| } |
| |
| <span class="kw">super</span>::<span class="ident">edit_history_next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">history</span>, <span class="bool-val">false</span>).<span class="ident">unwrap</span>(); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">line</span>, <span class="ident">s</span>.<span class="ident">snapshot</span>.<span class="ident">as_str</span>()); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">1</span>, <span class="ident">s</span>.<span class="ident">history_index</span>); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"line1"</span>, <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">as_str</span>()); |
| |
| <span class="kw">super</span>::<span class="ident">edit_history_next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">history</span>, <span class="bool-val">false</span>).<span class="ident">unwrap</span>(); |
| <span class="comment">// assert_eq!(line, s.snapshot);</span> |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">2</span>, <span class="ident">s</span>.<span class="ident">history_index</span>); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">line</span>, <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">as_str</span>()); |
| } |
| |
| <span class="kw">struct</span> <span class="ident">SimpleCompleter</span>; |
| <span class="kw">impl</span> <span class="ident">Completer</span> <span class="kw">for</span> <span class="ident">SimpleCompleter</span> { |
| <span class="kw">fn</span> <span class="ident">complete</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">line</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">_pos</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>(<span class="ident">usize</span>, <span class="ident">Vec</span><span class="op"><</span><span class="ident">String</span><span class="op">></span>)<span class="op">></span> { |
| <span class="prelude-val">Ok</span>((<span class="number">0</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="ident">line</span>.<span class="ident">to_string</span>() <span class="op">+</span> <span class="string">"t"</span>])) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">complete_line</span>() { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">out</span> <span class="op">=</span> ::<span class="ident">std</span>::<span class="ident">io</span>::<span class="ident">sink</span>(); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">init_state</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>, <span class="string">"rus"</span>, <span class="number">3</span>, <span class="number">80</span>); |
| <span class="kw">let</span> <span class="ident">keys</span> <span class="op">=</span> <span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Enter</span>]; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rdr</span> <span class="op">=</span> <span class="ident">keys</span>.<span class="ident">iter</span>(); |
| <span class="kw">let</span> <span class="ident">completer</span> <span class="op">=</span> <span class="ident">SimpleCompleter</span>; |
| <span class="kw">let</span> <span class="ident">cmd</span> <span class="op">=</span> <span class="kw">super</span>::<span class="ident">complete_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">rdr</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">s</span>, <span class="kw-2">&</span><span class="ident">completer</span>, <span class="kw-2">&</span><span class="ident">Config</span>::<span class="ident">default</span>()).<span class="ident">unwrap</span>(); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">Some</span>(<span class="ident">Cmd</span>::<span class="ident">AcceptLine</span>), <span class="ident">cmd</span>); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"rust"</span>, <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">as_str</span>()); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">4</span>, <span class="ident">s</span>.<span class="ident">line</span>.<span class="ident">pos</span>()); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">prompt_with_ansi_escape_codes</span>() { |
| <span class="kw">let</span> <span class="ident">pos</span> <span class="op">=</span> <span class="kw">super</span>::<span class="ident">calculate_position</span>(<span class="string">"\x1b[1;32m>>\x1b[0m "</span>, <span class="ident">Position</span>::<span class="ident">default</span>(), <span class="number">80</span>); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">3</span>, <span class="ident">pos</span>.<span class="ident">col</span>); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">pos</span>.<span class="ident">row</span>); |
| } |
| |
| <span class="kw">fn</span> <span class="ident">assert_line</span>(<span class="ident">keys</span>: <span class="kw-2">&</span>[<span class="ident">KeyPress</span>], <span class="ident">expected_line</span>: <span class="kw-2">&</span><span class="ident">str</span>) { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">editor</span> <span class="op">=</span> <span class="ident">init_editor</span>(<span class="ident">keys</span>); |
| <span class="kw">let</span> <span class="ident">actual_line</span> <span class="op">=</span> <span class="ident">editor</span>.<span class="ident">readline</span>(<span class="kw-2">&</span><span class="string">">>"</span>).<span class="ident">unwrap</span>(); |
| <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">expected_line</span>, <span class="ident">actual_line</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">delete_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'a'</span>), <span class="ident">KeyPress</span>::<span class="ident">Delete</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], |
| <span class="string">"a"</span>); |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'a'</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Left</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Delete</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], |
| <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">down_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Down</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">end_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">End</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">home_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Home</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">left_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Left</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">meta_backspace_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'\x08'</span>), <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">page_down_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">PageDown</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">page_up_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">PageUp</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">right_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Right</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">up_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">Up</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">unknown_esc_key</span>() { |
| <span class="ident">assert_line</span>(<span class="kw-2">&</span>[<span class="ident">KeyPress</span>::<span class="ident">UnknownEscSeq</span>, <span class="ident">KeyPress</span>::<span class="ident">Enter</span>], <span class="string">""</span>); |
| } |
| } |
| </pre> |
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