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| <section id='main' class="content"><pre class="line-numbers"><span id="1"> 1</span> |
| <span id="2"> 2</span> |
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| <span id="548">548</span> |
| <span id="549">549</span> |
| <span id="550">550</span> |
| <span id="551">551</span> |
| <span id="552">552</span> |
| <span id="553">553</span> |
| <span id="554">554</span> |
| <span id="555">555</span> |
| <span id="556">556</span> |
| <span id="557">557</span> |
| <span id="558">558</span> |
| <span id="559">559</span> |
| <span id="560">560</span> |
| <span id="561">561</span> |
| <span id="562">562</span> |
| <span id="563">563</span> |
| <span id="564">564</span> |
| <span id="565">565</span> |
| <span id="566">566</span> |
| <span id="567">567</span> |
| <span id="568">568</span> |
| <span id="569">569</span> |
| <span id="570">570</span> |
| <span id="571">571</span> |
| <span id="572">572</span> |
| <span id="573">573</span> |
| <span id="574">574</span> |
| <span id="575">575</span> |
| <span id="576">576</span> |
| <span id="577">577</span> |
| <span id="578">578</span> |
| <span id="579">579</span> |
| <span id="580">580</span> |
| <span id="581">581</span> |
| <span id="582">582</span> |
| <span id="583">583</span> |
| <span id="584">584</span> |
| <span id="585">585</span> |
| <span id="586">586</span> |
| <span id="587">587</span> |
| <span id="588">588</span> |
| <span id="589">589</span> |
| <span id="590">590</span> |
| <span id="591">591</span> |
| <span id="592">592</span> |
| <span id="593">593</span> |
| <span id="594">594</span> |
| <span id="595">595</span> |
| <span id="596">596</span> |
| <span id="597">597</span> |
| <span id="598">598</span> |
| <span id="599">599</span> |
| <span id="600">600</span> |
| <span id="601">601</span> |
| <span id="602">602</span> |
| <span id="603">603</span> |
| <span id="604">604</span> |
| <span id="605">605</span> |
| <span id="606">606</span> |
| <span id="607">607</span> |
| <span id="608">608</span> |
| <span id="609">609</span> |
| <span id="610">610</span> |
| <span id="611">611</span> |
| <span id="612">612</span> |
| <span id="613">613</span> |
| <span id="614">614</span> |
| <span id="615">615</span> |
| <span id="616">616</span> |
| <span id="617">617</span> |
| <span id="618">618</span> |
| <span id="619">619</span> |
| <span id="620">620</span> |
| <span id="621">621</span> |
| <span id="622">622</span> |
| <span id="623">623</span> |
| <span id="624">624</span> |
| <span id="625">625</span> |
| <span id="626">626</span> |
| <span id="627">627</span> |
| <span id="628">628</span> |
| <span id="629">629</span> |
| <span id="630">630</span> |
| <span id="631">631</span> |
| <span id="632">632</span> |
| <span id="633">633</span> |
| <span id="634">634</span> |
| <span id="635">635</span> |
| <span id="636">636</span> |
| <span id="637">637</span> |
| <span id="638">638</span> |
| <span id="639">639</span> |
| <span id="640">640</span> |
| <span id="641">641</span> |
| <span id="642">642</span> |
| <span id="643">643</span> |
| <span id="644">644</span> |
| <span id="645">645</span> |
| <span id="646">646</span> |
| <span id="647">647</span> |
| <span id="648">648</span> |
| <span id="649">649</span> |
| <span id="650">650</span> |
| <span id="651">651</span> |
| <span id="652">652</span> |
| <span id="653">653</span> |
| <span id="654">654</span> |
| <span id="655">655</span> |
| <span id="656">656</span> |
| <span id="657">657</span> |
| <span id="658">658</span> |
| <span id="659">659</span> |
| <span id="660">660</span> |
| <span id="661">661</span> |
| <span id="662">662</span> |
| <span id="663">663</span> |
| <span id="664">664</span> |
| <span id="665">665</span> |
| <span id="666">666</span> |
| <span id="667">667</span> |
| <span id="668">668</span> |
| <span id="669">669</span> |
| <span id="670">670</span> |
| <span id="671">671</span> |
| <span id="672">672</span> |
| <span id="673">673</span> |
| <span id="674">674</span> |
| <span id="675">675</span> |
| <span id="676">676</span> |
| <span id="677">677</span> |
| <span id="678">678</span> |
| <span id="679">679</span> |
| <span id="680">680</span> |
| <span id="681">681</span> |
| <span id="682">682</span> |
| <span id="683">683</span> |
| <span id="684">684</span> |
| <span id="685">685</span> |
| <span id="686">686</span> |
| <span id="687">687</span> |
| <span id="688">688</span> |
| <span id="689">689</span> |
| <span id="690">690</span> |
| <span id="691">691</span> |
| <span id="692">692</span> |
| <span id="693">693</span> |
| <span id="694">694</span> |
| <span id="695">695</span> |
| <span id="696">696</span> |
| <span id="697">697</span> |
| <span id="698">698</span> |
| <span id="699">699</span> |
| <span id="700">700</span> |
| <span id="701">701</span> |
| <span id="702">702</span> |
| <span id="703">703</span> |
| <span id="704">704</span> |
| <span id="705">705</span> |
| <span id="706">706</span> |
| <span id="707">707</span> |
| <span id="708">708</span> |
| <span id="709">709</span> |
| <span id="710">710</span> |
| <span id="711">711</span> |
| <span id="712">712</span> |
| <span id="713">713</span> |
| <span id="714">714</span> |
| <span id="715">715</span> |
| <span id="716">716</span> |
| <span id="717">717</span> |
| <span id="718">718</span> |
| <span id="719">719</span> |
| <span id="720">720</span> |
| <span id="721">721</span> |
| <span id="722">722</span> |
| <span id="723">723</span> |
| <span id="724">724</span> |
| <span id="725">725</span> |
| <span id="726">726</span> |
| <span id="727">727</span> |
| <span id="728">728</span> |
| <span id="729">729</span> |
| <span id="730">730</span> |
| <span id="731">731</span> |
| <span id="732">732</span> |
| <span id="733">733</span> |
| <span id="734">734</span> |
| <span id="735">735</span> |
| <span id="736">736</span> |
| <span id="737">737</span> |
| <span id="738">738</span> |
| <span id="739">739</span> |
| <span id="740">740</span> |
| <span id="741">741</span> |
| <span id="742">742</span> |
| <span id="743">743</span> |
| <span id="744">744</span> |
| <span id="745">745</span> |
| <span id="746">746</span> |
| <span id="747">747</span> |
| <span id="748">748</span> |
| <span id="749">749</span> |
| <span id="750">750</span> |
| <span id="751">751</span> |
| <span id="752">752</span> |
| <span id="753">753</span> |
| <span id="754">754</span> |
| <span id="755">755</span> |
| <span id="756">756</span> |
| <span id="757">757</span> |
| <span id="758">758</span> |
| <span id="759">759</span> |
| <span id="760">760</span> |
| <span id="761">761</span> |
| <span id="762">762</span> |
| <span id="763">763</span> |
| <span id="764">764</span> |
| </pre><pre class="rust "> |
| <span class="doccomment">//! Bindings from keys to command for Emacs and Vi modes</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">rc</span>::<span class="ident">Rc</span>; |
| |
| <span class="kw">use</span> <span class="ident">config</span>::<span class="ident">Config</span>; |
| <span class="kw">use</span> <span class="ident">config</span>::<span class="ident">EditMode</span>; |
| <span class="kw">use</span> <span class="ident">consts</span>::<span class="ident">KeyPress</span>; |
| <span class="kw">use</span> <span class="ident">tty</span>::<span class="ident">RawReader</span>; |
| <span class="kw">use</span> <span class="kw">super</span>::<span class="prelude-ty">Result</span>; |
| |
| <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">RepeatCount</span> <span class="op">=</span> <span class="ident">usize</span>; |
| |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">PartialEq</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Cmd</span> { |
| <span class="ident">Abort</span>, <span class="comment">// Miscellaneous Command</span> |
| <span class="ident">AcceptLine</span>, |
| <span class="ident">BeginningOfHistory</span>, |
| <span class="ident">CapitalizeWord</span>, |
| <span class="ident">ClearScreen</span>, |
| <span class="ident">Complete</span>, |
| <span class="ident">DowncaseWord</span>, |
| <span class="ident">EndOfFile</span>, |
| <span class="ident">EndOfHistory</span>, |
| <span class="ident">ForwardSearchHistory</span>, |
| <span class="ident">HistorySearchBackward</span>, |
| <span class="ident">HistorySearchForward</span>, |
| <span class="ident">Insert</span>(<span class="ident">RepeatCount</span>, <span class="ident">String</span>), |
| <span class="ident">Interrupt</span>, |
| <span class="ident">Kill</span>(<span class="ident">Movement</span>), |
| <span class="ident">Move</span>(<span class="ident">Movement</span>), |
| <span class="ident">NextHistory</span>, |
| <span class="ident">Noop</span>, |
| <span class="ident">PreviousHistory</span>, |
| <span class="ident">QuotedInsert</span>, |
| <span class="ident">Replace</span>(<span class="ident">RepeatCount</span>, <span class="ident">char</span>), |
| <span class="ident">ReverseSearchHistory</span>, |
| <span class="ident">SelfInsert</span>(<span class="ident">RepeatCount</span>, <span class="ident">char</span>), |
| <span class="ident">Suspend</span>, |
| <span class="ident">TransposeChars</span>, |
| <span class="ident">TransposeWords</span>(<span class="ident">RepeatCount</span>), |
| <span class="ident">Unknown</span>, |
| <span class="ident">UpcaseWord</span>, |
| <span class="ident">ViYankTo</span>(<span class="ident">Movement</span>), |
| <span class="ident">Yank</span>(<span class="ident">RepeatCount</span>, <span class="ident">Anchor</span>), |
| <span class="ident">YankPop</span>, |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Cmd</span> { |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">should_reset_kill_ring</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</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">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">ForwardChar</span>(_)) <span class="op">=></span> <span class="bool-val">true</span>, |
| <span class="ident">Cmd</span>::<span class="ident">ClearScreen</span> <span class="op">|</span> <span class="ident">Cmd</span>::<span class="ident">Kill</span>(_) <span class="op">|</span> <span class="ident">Cmd</span>::<span class="ident">Noop</span> <span class="op">|</span> <span class="ident">Cmd</span>::<span class="ident">Suspend</span> <span class="op">|</span> <span class="ident">Cmd</span>::<span class="ident">Yank</span>(_, _) <span class="op">|</span> |
| <span class="ident">Cmd</span>::<span class="ident">YankPop</span> <span class="op">=></span> <span class="bool-val">false</span>, |
| _ <span class="op">=></span> <span class="bool-val">true</span>, |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">is_repeatable_change</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Insert</span>(_, _) <span class="op">=></span> <span class="bool-val">true</span>, |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(_) <span class="op">=></span> <span class="bool-val">true</span>, |
| <span class="ident">Cmd</span>::<span class="ident">Replace</span>(_, _) <span class="op">=></span> <span class="bool-val">true</span>, |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(_, _) <span class="op">=></span> <span class="bool-val">true</span>, |
| <span class="ident">Cmd</span>::<span class="ident">TransposeChars</span> <span class="op">=></span> <span class="bool-val">false</span>, <span class="comment">// TODO Validate</span> |
| <span class="ident">Cmd</span>::<span class="ident">ViYankTo</span>(_) <span class="op">=></span> <span class="bool-val">true</span>, |
| <span class="ident">Cmd</span>::<span class="ident">Yank</span>(_, _) <span class="op">=></span> <span class="bool-val">true</span>, |
| _ <span class="op">=></span> <span class="bool-val">false</span>, |
| } |
| } |
| <span class="kw">fn</span> <span class="ident">is_repeatable</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(_) <span class="op">=></span> <span class="bool-val">true</span>, |
| _ <span class="op">=></span> <span class="self">self</span>.<span class="ident">is_repeatable_change</span>(), |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">redo</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">new</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">RepeatCount</span><span class="op">></span>) <span class="op">-></span> <span class="ident">Cmd</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Insert</span>(<span class="ident">previous</span>, <span class="kw-2">ref</span> <span class="ident">text</span>) <span class="op">=></span> { |
| <span class="ident">Cmd</span>::<span class="ident">Insert</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>), <span class="ident">text</span>.<span class="ident">clone</span>()) |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="kw-2">ref</span> <span class="ident">mvt</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">mvt</span>.<span class="ident">redo</span>(<span class="ident">new</span>)), |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="kw-2">ref</span> <span class="ident">mvt</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">mvt</span>.<span class="ident">redo</span>(<span class="ident">new</span>)), |
| <span class="ident">Cmd</span>::<span class="ident">Replace</span>(<span class="ident">previous</span>, <span class="ident">c</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Replace</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>), <span class="ident">c</span>), |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="ident">previous</span>, <span class="ident">c</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>), <span class="ident">c</span>), |
| <span class="comment">//Cmd::TransposeChars => Cmd::TransposeChars,</span> |
| <span class="ident">Cmd</span>::<span class="ident">ViYankTo</span>(<span class="kw-2">ref</span> <span class="ident">mvt</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">ViYankTo</span>(<span class="ident">mvt</span>.<span class="ident">redo</span>(<span class="ident">new</span>)), |
| <span class="ident">Cmd</span>::<span class="ident">Yank</span>(<span class="ident">previous</span>, <span class="ident">anchor</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Yank</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>), <span class="ident">anchor</span>), |
| _ <span class="op">=></span> <span class="macro">unreachable</span><span class="macro">!</span>(), |
| } |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">repeat_count</span>(<span class="ident">previous</span>: <span class="ident">RepeatCount</span>, <span class="ident">new</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">RepeatCount</span><span class="op">></span>) <span class="op">-></span> <span class="ident">RepeatCount</span> { |
| <span class="kw">match</span> <span class="ident">new</span> { |
| <span class="prelude-val">Some</span>(<span class="ident">n</span>) <span class="op">=></span> <span class="ident">n</span>, |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="ident">previous</span>, |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">PartialEq</span>, <span class="ident">Copy</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Word</span> { |
| <span class="comment">// non-blanks characters</span> |
| <span class="ident">Big</span>, |
| <span class="comment">// alphanumeric characters</span> |
| <span class="ident">Emacs</span>, |
| <span class="comment">// alphanumeric (and '_') characters</span> |
| <span class="ident">Vi</span>, |
| } |
| |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">PartialEq</span>, <span class="ident">Copy</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">At</span> { |
| <span class="ident">Start</span>, |
| <span class="ident">BeforeEnd</span>, |
| <span class="ident">AfterEnd</span>, |
| } |
| |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">PartialEq</span>, <span class="ident">Copy</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Anchor</span> { |
| <span class="ident">After</span>, |
| <span class="ident">Before</span>, |
| } |
| |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">PartialEq</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">CharSearch</span> { |
| <span class="ident">Forward</span>(<span class="ident">char</span>), |
| <span class="comment">// until</span> |
| <span class="ident">ForwardBefore</span>(<span class="ident">char</span>), |
| <span class="ident">Backward</span>(<span class="ident">char</span>), |
| <span class="comment">// until</span> |
| <span class="ident">BackwardAfter</span>(<span class="ident">char</span>), |
| } |
| |
| <span class="kw">impl</span> <span class="ident">CharSearch</span> { |
| <span class="kw">fn</span> <span class="ident">opposite</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">CharSearch</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> { |
| <span class="ident">CharSearch</span>::<span class="ident">Forward</span>(<span class="ident">c</span>) <span class="op">=></span> <span class="ident">CharSearch</span>::<span class="ident">Backward</span>(<span class="ident">c</span>), |
| <span class="ident">CharSearch</span>::<span class="ident">ForwardBefore</span>(<span class="ident">c</span>) <span class="op">=></span> <span class="ident">CharSearch</span>::<span class="ident">BackwardAfter</span>(<span class="ident">c</span>), |
| <span class="ident">CharSearch</span>::<span class="ident">Backward</span>(<span class="ident">c</span>) <span class="op">=></span> <span class="ident">CharSearch</span>::<span class="ident">Forward</span>(<span class="ident">c</span>), |
| <span class="ident">CharSearch</span>::<span class="ident">BackwardAfter</span>(<span class="ident">c</span>) <span class="op">=></span> <span class="ident">CharSearch</span>::<span class="ident">ForwardBefore</span>(<span class="ident">c</span>), |
| } |
| } |
| } |
| |
| |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">PartialEq</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Movement</span> { |
| <span class="ident">WholeLine</span>, <span class="comment">// not really a movement</span> |
| <span class="ident">BeginningOfLine</span>, |
| <span class="ident">EndOfLine</span>, |
| <span class="ident">BackwardWord</span>(<span class="ident">RepeatCount</span>, <span class="ident">Word</span>), <span class="comment">// Backward until start of word</span> |
| <span class="ident">ForwardWord</span>(<span class="ident">RepeatCount</span>, <span class="ident">At</span>, <span class="ident">Word</span>), <span class="comment">// Forward until start/end of word</span> |
| <span class="ident">ViCharSearch</span>(<span class="ident">RepeatCount</span>, <span class="ident">CharSearch</span>), |
| <span class="ident">ViFirstPrint</span>, |
| <span class="ident">BackwardChar</span>(<span class="ident">RepeatCount</span>), |
| <span class="ident">ForwardChar</span>(<span class="ident">RepeatCount</span>), |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Movement</span> { |
| <span class="kw">fn</span> <span class="ident">redo</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">new</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">RepeatCount</span><span class="op">></span>) <span class="op">-></span> <span class="ident">Movement</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> { |
| <span class="ident">Movement</span>::<span class="ident">WholeLine</span> <span class="op">=></span> <span class="ident">Movement</span>::<span class="ident">WholeLine</span>, |
| <span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span> <span class="op">=></span> <span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>, |
| <span class="ident">Movement</span>::<span class="ident">ViFirstPrint</span> <span class="op">=></span> <span class="ident">Movement</span>::<span class="ident">ViFirstPrint</span>, |
| <span class="ident">Movement</span>::<span class="ident">EndOfLine</span> <span class="op">=></span> <span class="ident">Movement</span>::<span class="ident">EndOfLine</span>, |
| <span class="ident">Movement</span>::<span class="ident">BackwardWord</span>(<span class="ident">previous</span>, <span class="ident">word</span>) <span class="op">=></span> { |
| <span class="ident">Movement</span>::<span class="ident">BackwardWord</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>), <span class="ident">word</span>) |
| } |
| <span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">previous</span>, <span class="ident">at</span>, <span class="ident">word</span>) <span class="op">=></span> { |
| <span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>), <span class="ident">at</span>, <span class="ident">word</span>) |
| } |
| <span class="ident">Movement</span>::<span class="ident">ViCharSearch</span>(<span class="ident">previous</span>, <span class="kw-2">ref</span> <span class="ident">char_search</span>) <span class="op">=></span> { |
| <span class="ident">Movement</span>::<span class="ident">ViCharSearch</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>), <span class="ident">char_search</span>.<span class="ident">clone</span>()) |
| } |
| <span class="ident">Movement</span>::<span class="ident">BackwardChar</span>(<span class="ident">previous</span>) <span class="op">=></span> <span class="ident">Movement</span>::<span class="ident">BackwardChar</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>)), |
| <span class="ident">Movement</span>::<span class="ident">ForwardChar</span>(<span class="ident">previous</span>) <span class="op">=></span> <span class="ident">Movement</span>::<span class="ident">ForwardChar</span>(<span class="ident">repeat_count</span>(<span class="ident">previous</span>, <span class="ident">new</span>)), |
| } |
| } |
| } |
| |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">EditState</span> { |
| <span class="ident">mode</span>: <span class="ident">EditMode</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="comment">// Vi Command/Alternate, Insert/Input mode</span> |
| <span class="ident">insert</span>: <span class="ident">bool</span>, <span class="comment">// vi only ?</span> |
| <span class="comment">// numeric arguments: http://web.mit.edu/gnu/doc/html/rlman_1.html#SEC7</span> |
| <span class="ident">num_args</span>: <span class="ident">i16</span>, |
| <span class="ident">last_cmd</span>: <span class="ident">Cmd</span>, <span class="comment">// vi only</span> |
| <span class="ident">consecutive_insert</span>: <span class="ident">bool</span>, |
| <span class="ident">last_char_search</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">CharSearch</span><span class="op">></span>, <span class="comment">// vi only</span> |
| } |
| |
| <span class="kw">impl</span> <span class="ident">EditState</span> { |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">config</span>: <span class="kw-2">&</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="op">-></span> <span class="ident">EditState</span> { |
| <span class="ident">EditState</span> { |
| <span class="ident">mode</span>: <span class="ident">config</span>.<span class="ident">edit_mode</span>(), |
| <span class="ident">custom_bindings</span>: <span class="ident">custom_bindings</span>, |
| <span class="ident">insert</span>: <span class="bool-val">true</span>, |
| <span class="ident">num_args</span>: <span class="number">0</span>, |
| <span class="ident">last_cmd</span>: <span class="ident">Cmd</span>::<span class="ident">Noop</span>, |
| <span class="ident">consecutive_insert</span>: <span class="bool-val">false</span>, |
| <span class="ident">last_char_search</span>: <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">is_emacs_mode</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { |
| <span class="self">self</span>.<span class="ident">mode</span> <span class="op">==</span> <span class="ident">EditMode</span>::<span class="ident">Emacs</span> |
| } |
| |
| <span class="kw">pub</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">match</span> <span class="self">self</span>.<span class="ident">mode</span> { |
| <span class="ident">EditMode</span>::<span class="ident">Emacs</span> <span class="op">=></span> <span class="self">self</span>.<span class="ident">emacs</span>(<span class="ident">rdr</span>), |
| <span class="ident">EditMode</span>::<span class="ident">Vi</span> <span class="kw">if</span> <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=></span> <span class="self">self</span>.<span class="ident">vi_insert</span>(<span class="ident">rdr</span>), |
| <span class="ident">EditMode</span>::<span class="ident">Vi</span> <span class="op">=></span> <span class="self">self</span>.<span class="ident">vi_command</span>(<span class="ident">rdr</span>), |
| } |
| } |
| |
| <span class="comment">// TODO dynamic prompt (arg: ?)</span> |
| <span class="kw">fn</span> <span class="ident">emacs_digit_argument</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="ident">digit</span>: <span class="ident">char</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">KeyPress</span><span class="op">></span> { |
| <span class="kw">match</span> <span class="ident">digit</span> { |
| <span class="string">'0'</span>...<span class="string">'9'</span> <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">=</span> <span class="ident">digit</span>.<span class="ident">to_digit</span>(<span class="number">10</span>).<span class="ident">unwrap</span>() <span class="kw">as</span> <span class="ident">i16</span>; |
| } |
| <span class="string">'-'</span> <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">=</span> <span class="op">-</span><span class="number">1</span>; |
| } |
| _ <span class="op">=></span> <span class="macro">unreachable</span><span class="macro">!</span>(), |
| } |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_key</span>()); |
| <span class="kw">match</span> <span class="ident">key</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">digit</span> @ <span class="string">'0'</span>...<span class="string">'9'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="ident">digit</span> @ <span class="string">'0'</span>...<span class="string">'9'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">==</span> <span class="op">-</span><span class="number">1</span> { |
| <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">*=</span> <span class="ident">digit</span>.<span class="ident">to_digit</span>(<span class="number">10</span>).<span class="ident">unwrap</span>() <span class="kw">as</span> <span class="ident">i16</span>; |
| } <span class="kw">else</span> { |
| <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">num_args</span> |
| .<span class="ident">saturating_mul</span>(<span class="number">10</span>) |
| .<span class="ident">saturating_add</span>(<span class="ident">digit</span>.<span class="ident">to_digit</span>(<span class="number">10</span>).<span class="ident">unwrap</span>() <span class="kw">as</span> <span class="ident">i16</span>); |
| } |
| } |
| _ <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">key</span>), |
| }; |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">emacs</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">let</span> <span class="kw-2">mut</span> <span class="ident">key</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_key</span>()); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="ident">digit</span> @ <span class="string">'-'</span>) <span class="op">=</span> <span class="ident">key</span> { |
| <span class="ident">key</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">emacs_digit_argument</span>(<span class="ident">rdr</span>, <span class="ident">digit</span>)); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="ident">digit</span> @ <span class="string">'0'</span>...<span class="string">'9'</span>) <span class="op">=</span> <span class="ident">key</span> { |
| <span class="ident">key</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">emacs_digit_argument</span>(<span class="ident">rdr</span>, <span class="ident">digit</span>)); |
| } |
| <span class="kw">let</span> (<span class="ident">n</span>, <span class="ident">positive</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">emacs_num_args</span>(); <span class="comment">// consume them in all cases</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</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</span>().<span class="ident">get</span>(<span class="kw-2">&</span><span class="ident">key</span>) { |
| <span class="macro">debug</span><span class="macro">!</span>(<span class="ident">target</span>: <span class="string">"rustyline"</span>, <span class="string">"Custom command: {:?}"</span>, <span class="ident">cmd</span>); |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="kw">if</span> <span class="ident">cmd</span>.<span class="ident">is_repeatable</span>() { |
| <span class="ident">cmd</span>.<span class="ident">redo</span>(<span class="prelude-val">Some</span>(<span class="ident">n</span>)) |
| } <span class="kw">else</span> { |
| <span class="ident">cmd</span>.<span class="ident">clone</span>() |
| }); |
| } |
| <span class="kw">let</span> <span class="ident">cmd</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">key</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">c</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</span> { |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="ident">n</span>, <span class="ident">c</span>) |
| } <span class="kw">else</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Unknown</span> |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'A'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'B'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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="kw">else</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="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'E'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'F'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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="kw">else</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="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'G'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Esc</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Abort</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'H'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Backspace</span> <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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="kw">else</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="ident">KeyPress</span>::<span class="ident">Tab</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Complete</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'K'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>) |
| } <span class="kw">else</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>) |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'L'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">ClearScreen</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'N'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">NextHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'P'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">PreviousHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'\x08'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'\x7f'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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</span>::<span class="ident">Emacs</span>)) |
| } <span class="kw">else</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">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Emacs</span>)) |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'<'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">BeginningOfHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'>'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">EndOfHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'B'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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</span>::<span class="ident">Emacs</span>)) |
| } <span class="kw">else</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">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Emacs</span>)) |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'C'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">CapitalizeWord</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'D'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Emacs</span>)) |
| } <span class="kw">else</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</span>::<span class="ident">Emacs</span>)) |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'F'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Emacs</span>)) |
| } <span class="kw">else</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</span>::<span class="ident">Emacs</span>)) |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'L'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">DowncaseWord</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'T'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">TransposeWords</span>(<span class="ident">n</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'U'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">UpcaseWord</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Meta</span>(<span class="string">'Y'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">YankPop</span>, |
| _ <span class="op">=></span> <span class="self">self</span>.<span class="ident">common</span>(<span class="ident">key</span>, <span class="ident">n</span>, <span class="ident">positive</span>), |
| }; |
| <span class="macro">debug</span><span class="macro">!</span>(<span class="ident">target</span>: <span class="string">"rustyline"</span>, <span class="string">"Emacs command: {:?}"</span>, <span class="ident">cmd</span>); |
| <span class="prelude-val">Ok</span>(<span class="ident">cmd</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">vi_arg_digit</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="ident">digit</span>: <span class="ident">char</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">KeyPress</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">=</span> <span class="ident">digit</span>.<span class="ident">to_digit</span>(<span class="number">10</span>).<span class="ident">unwrap</span>() <span class="kw">as</span> <span class="ident">i16</span>; |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_key</span>()); |
| <span class="kw">match</span> <span class="ident">key</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">digit</span> @ <span class="string">'0'</span>...<span class="string">'9'</span>) <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">num_args</span> |
| .<span class="ident">saturating_mul</span>(<span class="number">10</span>) |
| .<span class="ident">saturating_add</span>(<span class="ident">digit</span>.<span class="ident">to_digit</span>(<span class="number">10</span>).<span class="ident">unwrap</span>() <span class="kw">as</span> <span class="ident">i16</span>); |
| } |
| _ <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">key</span>), |
| }; |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">vi_command</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">let</span> <span class="kw-2">mut</span> <span class="ident">key</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_key</span>()); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">digit</span> @ <span class="string">'1'</span>...<span class="string">'9'</span>) <span class="op">=</span> <span class="ident">key</span> { |
| <span class="ident">key</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">vi_arg_digit</span>(<span class="ident">rdr</span>, <span class="ident">digit</span>)); |
| } |
| <span class="kw">let</span> <span class="ident">no_num_args</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">==</span> <span class="number">0</span>; |
| <span class="kw">let</span> <span class="ident">n</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">vi_num_args</span>(); <span class="comment">// consume them in all cases</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</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</span>().<span class="ident">get</span>(<span class="kw-2">&</span><span class="ident">key</span>) { |
| <span class="macro">debug</span><span class="macro">!</span>(<span class="ident">target</span>: <span class="string">"rustyline"</span>, <span class="string">"Custom command: {:?}"</span>, <span class="ident">cmd</span>); |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="kw">if</span> <span class="ident">cmd</span>.<span class="ident">is_repeatable</span>() { |
| <span class="kw">if</span> <span class="ident">no_num_args</span> { |
| <span class="ident">cmd</span>.<span class="ident">redo</span>(<span class="prelude-val">None</span>) |
| } <span class="kw">else</span> { |
| <span class="ident">cmd</span>.<span class="ident">redo</span>(<span class="prelude-val">Some</span>(<span class="ident">n</span>)) |
| } |
| } <span class="kw">else</span> { |
| <span class="ident">cmd</span>.<span class="ident">clone</span>() |
| }); |
| } |
| <span class="kw">let</span> <span class="ident">cmd</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">key</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'$'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">End</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'.'</span>) <span class="op">=></span> { <span class="comment">// vi-redo</span> |
| <span class="kw">if</span> <span class="ident">no_num_args</span> { |
| <span class="self">self</span>.<span class="ident">last_cmd</span>.<span class="ident">redo</span>(<span class="prelude-val">None</span>) |
| } <span class="kw">else</span> { |
| <span class="self">self</span>.<span class="ident">last_cmd</span>.<span class="ident">redo</span>(<span class="prelude-val">Some</span>(<span class="ident">n</span>)) |
| } |
| }, |
| <span class="comment">// TODO KeyPress::Char('%') => Cmd::???, Move to the corresponding opening/closing bracket</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'0'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'^'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">ViFirstPrint</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'a'</span>) <span class="op">=></span> { |
| <span class="comment">// vi-append-mode: Vi enter insert mode after the cursor.</span> |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</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="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'A'</span>) <span class="op">=></span> { |
| <span class="comment">// vi-append-eol: Vi enter insert mode at end of line.</span> |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>) |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'b'</span>) <span class="op">=></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</span>::<span class="ident">Vi</span>)), <span class="comment">// vi-prev-word</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'B'</span>) <span class="op">=></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</span>::<span class="ident">Big</span>)), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'c'</span>) <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="kw">match</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">vi_cmd_motion</span>(<span class="ident">rdr</span>, <span class="ident">key</span>, <span class="ident">n</span>)) { |
| <span class="prelude-val">Some</span>(<span class="ident">mvt</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">mvt</span>), |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Unknown</span>, |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'C'</span>) <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>) |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'d'</span>) <span class="op">=></span> { |
| <span class="kw">match</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">vi_cmd_motion</span>(<span class="ident">rdr</span>, <span class="ident">key</span>, <span class="ident">n</span>)) { |
| <span class="prelude-val">Some</span>(<span class="ident">mvt</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">mvt</span>), |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Unknown</span>, |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'D'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'K'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'e'</span>) <span class="op">=></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">BeforeEnd</span>, <span class="ident">Word</span>::<span class="ident">Vi</span>)), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'E'</span>) <span class="op">=></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">BeforeEnd</span>, <span class="ident">Word</span>::<span class="ident">Big</span>)), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'i'</span>) <span class="op">=></span> { |
| <span class="comment">// vi-insertion-mode</span> |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident">Cmd</span>::<span class="ident">Noop</span> |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'I'</span>) <span class="op">=></span> { |
| <span class="comment">// vi-insert-beg</span> |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>) |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">c</span>) <span class="kw">if</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'f'</span> <span class="op">||</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'F'</span> <span class="op">||</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'t'</span> <span class="op">||</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'T'</span> <span class="op">=></span> { |
| <span class="comment">// vi-char-search</span> |
| <span class="kw">let</span> <span class="ident">cs</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">vi_char_search</span>(<span class="ident">rdr</span>, <span class="ident">c</span>)); |
| <span class="kw">match</span> <span class="ident">cs</span> { |
| <span class="prelude-val">Some</span>(<span class="ident">cs</span>) <span class="op">=></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="prelude-val">None</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Unknown</span>, |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">';'</span>) <span class="op">=></span> { |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">last_char_search</span> { |
| <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">cs</span>) <span class="op">=></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="ident">clone</span>())), |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Noop</span>, |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">','</span>) <span class="op">=></span> { |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">last_char_search</span> { |
| <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">cs</span>) <span class="op">=></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="ident">opposite</span>())), |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Noop</span>, |
| } |
| } |
| <span class="comment">// TODO KeyPress::Char('G') => Cmd::???, Move to the history line n</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'p'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Yank</span>(<span class="ident">n</span>, <span class="ident">Anchor</span>::<span class="ident">After</span>), <span class="comment">// vi-put</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'P'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Yank</span>(<span class="ident">n</span>, <span class="ident">Anchor</span>::<span class="ident">Before</span>), <span class="comment">// vi-put</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'r'</span>) <span class="op">=></span> { |
| <span class="comment">// vi-replace-char: Vi replace character under the cursor with the next character typed.</span> |
| <span class="kw">let</span> <span class="ident">ch</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_key</span>()); |
| <span class="kw">match</span> <span class="ident">ch</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">c</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Replace</span>(<span class="ident">n</span>, <span class="ident">c</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Esc</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Noop</span>, |
| _ <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Unknown</span>, |
| } |
| } |
| <span class="comment">// TODO KeyPress::Char('R') => Cmd::???, vi-replace-mode: Vi enter replace mode. Replaces characters under the cursor. (overwrite-mode)</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'s'</span>) <span class="op">=></span> { |
| <span class="comment">// vi-substitute-char: Vi replace character under the cursor and enter insert mode.</span> |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</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="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'S'</span>) <span class="op">=></span> { |
| <span class="comment">// vi-substitute-line: Vi substitute entire line.</span> |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">WholeLine</span>) |
| } |
| <span class="comment">// KeyPress::Char('U') => Cmd::???, // revert-line</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'w'</span>) <span class="op">=></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">Start</span>, <span class="ident">Word</span>::<span class="ident">Vi</span>)), <span class="comment">// vi-next-word</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'W'</span>) <span class="op">=></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">Start</span>, <span class="ident">Word</span>::<span class="ident">Big</span>)), <span class="comment">// vi-next-word</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'x'</span>) <span class="op">=></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="comment">// vi-delete: TODO move backward if eol</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'X'</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="ident">n</span>)), <span class="comment">// vi-rubout</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'y'</span>) <span class="op">=></span> { |
| <span class="kw">match</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">vi_cmd_motion</span>(<span class="ident">rdr</span>, <span class="ident">key</span>, <span class="ident">n</span>)) { |
| <span class="prelude-val">Some</span>(<span class="ident">mvt</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">ViYankTo</span>(<span class="ident">mvt</span>), |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Unknown</span>, |
| } |
| } |
| <span class="comment">// KeyPress::Char('Y') => Cmd::???, // vi-yank-to</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'h'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'H'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Backspace</span> <span class="op">=></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="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'G'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Abort</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'l'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">' '</span>) <span class="op">=></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="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'L'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">ClearScreen</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'+'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'j'</span>) <span class="op">|</span> <span class="comment">// TODO: move to the start of the line.</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'N'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">NextHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'-'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'k'</span>) <span class="op">|</span> <span class="comment">// TODO: move to the start of the line.</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'P'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">PreviousHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'R'</span>) <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</span>; <span class="comment">// TODO Validate</span> |
| <span class="ident">Cmd</span>::<span class="ident">ReverseSearchHistory</span> |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'S'</span>) <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</span> <span class="bool-val">true</span>; <span class="comment">// TODO Validate</span> |
| <span class="ident">Cmd</span>::<span class="ident">ForwardSearchHistory</span> |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Esc</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Noop</span>, |
| _ <span class="op">=></span> <span class="self">self</span>.<span class="ident">common</span>(<span class="ident">key</span>, <span class="ident">n</span>, <span class="bool-val">true</span>), |
| }; |
| <span class="macro">debug</span><span class="macro">!</span>(<span class="ident">target</span>: <span class="string">"rustyline"</span>, <span class="string">"Vi command: {:?}"</span>, <span class="ident">cmd</span>); |
| <span class="kw">if</span> <span class="ident">cmd</span>.<span class="ident">is_repeatable_change</span>() { |
| <span class="self">self</span>.<span class="ident">update_last_cmd</span>(<span class="ident">cmd</span>.<span class="ident">clone</span>()); |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">cmd</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">vi_insert</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">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_key</span>()); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</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</span>().<span class="ident">get</span>(<span class="kw-2">&</span><span class="ident">key</span>) { |
| <span class="macro">debug</span><span class="macro">!</span>(<span class="ident">target</span>: <span class="string">"rustyline"</span>, <span class="string">"Custom command: {:?}"</span>, <span class="ident">cmd</span>); |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="kw">if</span> <span class="ident">cmd</span>.<span class="ident">is_repeatable</span>() { |
| <span class="ident">cmd</span>.<span class="ident">redo</span>(<span class="prelude-val">None</span>) |
| } <span class="kw">else</span> { |
| <span class="ident">cmd</span>.<span class="ident">clone</span>() |
| }); |
| } |
| <span class="kw">let</span> <span class="ident">cmd</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">key</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">c</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(<span class="number">1</span>, <span class="ident">c</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'H'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Backspace</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">KeyPress</span>::<span class="ident">Tab</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Complete</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Esc</span> <span class="op">=></span> { |
| <span class="comment">// vi-movement-mode/vi-command-mode: Vi enter command mode (use alternative key bindings).</span> |
| <span class="self">self</span>.<span class="ident">insert</span> <span class="op">=</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">BackwardChar</span>(<span class="number">1</span>)) |
| } |
| _ <span class="op">=></span> <span class="self">self</span>.<span class="ident">common</span>(<span class="ident">key</span>, <span class="number">1</span>, <span class="bool-val">true</span>), |
| }; |
| <span class="macro">debug</span><span class="macro">!</span>(<span class="ident">target</span>: <span class="string">"rustyline"</span>, <span class="string">"Vi insert: {:?}"</span>, <span class="ident">cmd</span>); |
| <span class="kw">if</span> <span class="ident">cmd</span>.<span class="ident">is_repeatable_change</span>() { |
| <span class="self">self</span>.<span class="ident">update_last_cmd</span>(<span class="ident">cmd</span>.<span class="ident">clone</span>()); |
| } |
| <span class="self">self</span>.<span class="ident">consecutive_insert</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">cmd</span> { |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(_, _) <span class="op">=></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="ident">cmd</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">vi_cmd_motion</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="ident">key</span>: <span class="ident">KeyPress</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">Movement</span><span class="op">>></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">mvt</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_key</span>()); |
| <span class="kw">if</span> <span class="ident">mvt</span> <span class="op">==</span> <span class="ident">key</span> { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">WholeLine</span>)); |
| } |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">n</span> <span class="op">=</span> <span class="ident">n</span>; |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">digit</span> @ <span class="string">'1'</span>...<span class="string">'9'</span>) <span class="op">=</span> <span class="ident">mvt</span> { |
| <span class="comment">// vi-arg-digit</span> |
| <span class="ident">mvt</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">vi_arg_digit</span>(<span class="ident">rdr</span>, <span class="ident">digit</span>)); |
| <span class="ident">n</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">vi_num_args</span>().<span class="ident">saturating_mul</span>(<span class="ident">n</span>); |
| } |
| <span class="prelude-val">Ok</span>(<span class="kw">match</span> <span class="ident">mvt</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'$'</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>), <span class="comment">// vi-change-to-eol: Vi change to end of line.</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'0'</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>), <span class="comment">// vi-kill-line-prev: Vi cut from beginning of line to cursor.</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'^'</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ViFirstPrint</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'b'</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">BackwardWord</span>(<span class="ident">n</span>, <span class="ident">Word</span>::<span class="ident">Vi</span>)), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'B'</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">BackwardWord</span>(<span class="ident">n</span>, <span class="ident">Word</span>::<span class="ident">Big</span>)), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'e'</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">n</span>, <span class="ident">At</span>::<span class="ident">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Vi</span>)), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'E'</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">n</span>, <span class="ident">At</span>::<span class="ident">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Big</span>)), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">c</span>) <span class="kw">if</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'f'</span> <span class="op">||</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'F'</span> <span class="op">||</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'t'</span> <span class="op">||</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'T'</span> <span class="op">=></span> { |
| <span class="kw">let</span> <span class="ident">cs</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">vi_char_search</span>(<span class="ident">rdr</span>, <span class="ident">c</span>)); |
| <span class="kw">match</span> <span class="ident">cs</span> { |
| <span class="prelude-val">Some</span>(<span class="ident">cs</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ViCharSearch</span>(<span class="ident">n</span>, <span class="ident">cs</span>)), |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="prelude-val">None</span>, |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">';'</span>) <span class="op">=></span> { |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">last_char_search</span> { |
| <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">cs</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ViCharSearch</span>(<span class="ident">n</span>, <span class="ident">cs</span>.<span class="ident">clone</span>())), |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="prelude-val">None</span>, |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">','</span>) <span class="op">=></span> { |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">last_char_search</span> { |
| <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">cs</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ViCharSearch</span>(<span class="ident">n</span>, <span class="ident">cs</span>.<span class="ident">opposite</span>())), |
| <span class="prelude-val">None</span> <span class="op">=></span> <span class="prelude-val">None</span>, |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'h'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'H'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Backspace</span> <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">BackwardChar</span>(<span class="ident">n</span>)), <span class="comment">// vi-delete-prev-char: Vi move to previous character (backspace).</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'l'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">' '</span>) <span class="op">=></span> <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ForwardChar</span>(<span class="ident">n</span>)), |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'w'</span>) <span class="op">=></span> { |
| <span class="comment">// 'cw' is 'ce'</span> |
| <span class="kw">if</span> <span class="ident">key</span> <span class="op">==</span> <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'c'</span>) { |
| <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">n</span>, <span class="ident">At</span>::<span class="ident">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Vi</span>)) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">n</span>, <span class="ident">At</span>::<span class="ident">Start</span>, <span class="ident">Word</span>::<span class="ident">Vi</span>)) |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'W'</span>) <span class="op">=></span> { |
| <span class="comment">// 'cW' is 'cE'</span> |
| <span class="kw">if</span> <span class="ident">key</span> <span class="op">==</span> <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="string">'c'</span>) { |
| <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">n</span>, <span class="ident">At</span>::<span class="ident">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Big</span>)) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Some</span>(<span class="ident">Movement</span>::<span class="ident">ForwardWord</span>(<span class="ident">n</span>, <span class="ident">At</span>::<span class="ident">Start</span>, <span class="ident">Word</span>::<span class="ident">Big</span>)) |
| } |
| } |
| _ <span class="op">=></span> <span class="prelude-val">None</span>, |
| }) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">vi_char_search</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="ident">cmd</span>: <span class="ident">char</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">CharSearch</span><span class="op">>></span> { |
| <span class="kw">let</span> <span class="ident">ch</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">rdr</span>.<span class="ident">next_key</span>()); |
| <span class="prelude-val">Ok</span>(<span class="kw">match</span> <span class="ident">ch</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Char</span>(<span class="ident">ch</span>) <span class="op">=></span> { |
| <span class="kw">let</span> <span class="ident">cs</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">cmd</span> { |
| <span class="string">'f'</span> <span class="op">=></span> <span class="ident">CharSearch</span>::<span class="ident">Forward</span>(<span class="ident">ch</span>), |
| <span class="string">'t'</span> <span class="op">=></span> <span class="ident">CharSearch</span>::<span class="ident">ForwardBefore</span>(<span class="ident">ch</span>), |
| <span class="string">'F'</span> <span class="op">=></span> <span class="ident">CharSearch</span>::<span class="ident">Backward</span>(<span class="ident">ch</span>), |
| <span class="string">'T'</span> <span class="op">=></span> <span class="ident">CharSearch</span>::<span class="ident">BackwardAfter</span>(<span class="ident">ch</span>), |
| _ <span class="op">=></span> <span class="macro">unreachable</span><span class="macro">!</span>(), |
| }; |
| <span class="self">self</span>.<span class="ident">last_char_search</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">cs</span>.<span class="ident">clone</span>()); |
| <span class="prelude-val">Some</span>(<span class="ident">cs</span>) |
| } |
| _ <span class="op">=></span> <span class="prelude-val">None</span>, |
| }) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">common</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key</span>: <span class="ident">KeyPress</span>, <span class="ident">n</span>: <span class="ident">RepeatCount</span>, <span class="ident">positive</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="ident">Cmd</span> { |
| <span class="kw">match</span> <span class="ident">key</span> { |
| <span class="ident">KeyPress</span>::<span class="ident">Home</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Left</span> <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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="kw">else</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="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'C'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Interrupt</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'D'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">EndOfFile</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Delete</span> <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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="kw">else</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="ident">KeyPress</span>::<span class="ident">End</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Move</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>), |
| <span class="ident">KeyPress</span>::<span class="ident">Right</span> <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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="kw">else</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="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'J'</span>) <span class="op">|</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Enter</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">AcceptLine</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Down</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">NextHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Up</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">PreviousHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'R'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">ReverseSearchHistory</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'S'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">ForwardSearchHistory</span>, <span class="comment">// most terminals override Ctrl+S to suspend execution</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'T'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">TransposeChars</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'U'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">BeginningOfLine</span>) |
| } <span class="kw">else</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Kill</span>(<span class="ident">Movement</span>::<span class="ident">EndOfLine</span>) |
| } |
| }, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'Q'</span>) <span class="op">|</span> <span class="comment">// most terminals override Ctrl+Q to resume execution</span> |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'V'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">QuotedInsert</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'W'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</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</span>::<span class="ident">Big</span>)) |
| } <span class="kw">else</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">AfterEnd</span>, <span class="ident">Word</span>::<span class="ident">Big</span>)) |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'Y'</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">positive</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Yank</span>(<span class="ident">n</span>, <span class="ident">Anchor</span>::<span class="ident">Before</span>) |
| } <span class="kw">else</span> { |
| <span class="ident">Cmd</span>::<span class="ident">Unknown</span> <span class="comment">// TODO Validate</span> |
| } |
| } |
| <span class="ident">KeyPress</span>::<span class="ident">Ctrl</span>(<span class="string">'Z'</span>) <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Suspend</span>, |
| <span class="ident">KeyPress</span>::<span class="ident">UnknownEscSeq</span> <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Noop</span>, |
| _ <span class="op">=></span> <span class="ident">Cmd</span>::<span class="ident">Unknown</span>, |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">num_args</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">i16</span> { |
| <span class="kw">let</span> <span class="ident">num_args</span> <span class="op">=</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">num_args</span> { |
| <span class="number">0</span> <span class="op">=></span> <span class="number">1</span>, |
| _ <span class="op">=></span> <span class="self">self</span>.<span class="ident">num_args</span>, |
| }; |
| <span class="self">self</span>.<span class="ident">num_args</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="ident">num_args</span> |
| } |
| |
| <span class="kw">fn</span> <span class="ident">emacs_num_args</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> (<span class="ident">RepeatCount</span>, <span class="ident">bool</span>) { |
| <span class="kw">let</span> <span class="ident">num_args</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">num_args</span>(); |
| <span class="kw">if</span> <span class="ident">num_args</span> <span class="op"><</span> <span class="number">0</span> { |
| <span class="kw">if</span> <span class="kw">let</span> (<span class="ident">n</span>, <span class="bool-val">false</span>) <span class="op">=</span> <span class="ident">num_args</span>.<span class="ident">overflowing_abs</span>() { |
| (<span class="ident">n</span> <span class="kw">as</span> <span class="ident">RepeatCount</span>, <span class="bool-val">false</span>) |
| } <span class="kw">else</span> { |
| (<span class="ident">RepeatCount</span>::<span class="ident">max_value</span>(), <span class="bool-val">false</span>) |
| } |
| } <span class="kw">else</span> { |
| (<span class="ident">num_args</span> <span class="kw">as</span> <span class="ident">RepeatCount</span>, <span class="bool-val">true</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">vi_num_args</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">RepeatCount</span> { |
| <span class="kw">let</span> <span class="ident">num_args</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">num_args</span>(); |
| <span class="kw">if</span> <span class="ident">num_args</span> <span class="op"><</span> <span class="number">0</span> { |
| <span class="macro">unreachable</span><span class="macro">!</span>() |
| } <span class="kw">else</span> { |
| <span class="ident">num_args</span>.<span class="ident">abs</span>() <span class="kw">as</span> <span class="ident">RepeatCount</span> |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">update_last_cmd</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">new</span>: <span class="ident">Cmd</span>) { |
| <span class="comment">// consecutive char inserts are repeatable not only the last one...</span> |
| <span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">consecutive_insert</span> { |
| <span class="self">self</span>.<span class="ident">last_cmd</span> <span class="op">=</span> <span class="ident">new</span>; |
| } <span class="kw">else</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">new</span> { |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">last_cmd</span> { |
| <span class="ident">Cmd</span>::<span class="ident">SelfInsert</span>(_, <span class="ident">pc</span>) <span class="op">=></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">text</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">new</span>(); |
| <span class="ident">text</span>.<span class="ident">push</span>(<span class="ident">pc</span>); |
| <span class="ident">text</span>.<span class="ident">push</span>(<span class="ident">c</span>); |
| <span class="self">self</span>.<span class="ident">last_cmd</span> <span class="op">=</span> <span class="ident">Cmd</span>::<span class="ident">Insert</span>(<span class="number">1</span>, <span class="ident">text</span>); |
| } |
| <span class="ident">Cmd</span>::<span class="ident">Insert</span>(_, <span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">text</span>) <span class="op">=></span> { |
| <span class="ident">text</span>.<span class="ident">push</span>(<span class="ident">c</span>); |
| } |
| _ <span class="op">=></span> <span class="self">self</span>.<span class="ident">last_cmd</span> <span class="op">=</span> <span class="ident">new</span>, |
| } |
| } <span class="kw">else</span> { |
| <span class="self">self</span>.<span class="ident">last_cmd</span> <span class="op">=</span> <span class="ident">new</span>; |
| } |
| } |
| } |
| </pre> |
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