| /* |
| * Copyright (c) 2018, The OpenThread Authors. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holder nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * @file |
| * This file implements the command line parser. |
| */ |
| |
| #include "parse_cmdline.hpp" |
| |
| #include "common/code_utils.hpp" |
| |
| namespace ot { |
| namespace Utils { |
| |
| static bool IsSpaceOrNewLine(char aChar) |
| { |
| return (aChar == ' ') || (aChar == '\t') || (aChar == '\r') || (aChar == '\n'); |
| } |
| |
| otError CmdLineParser::ParseCmd(char *aString, uint8_t &aArgc, char *aArgv[], uint8_t aArgcMax) |
| { |
| otError error = OT_ERROR_NONE; |
| char * cmd; |
| |
| aArgc = 0; |
| |
| for (cmd = aString; IsSpaceOrNewLine(*cmd) && *cmd; cmd++) |
| ; |
| |
| if (*cmd) |
| { |
| aArgv[aArgc++] = cmd++; // the first argument |
| } |
| |
| for (; *cmd; cmd++) |
| { |
| if (IsSpaceOrNewLine(*cmd)) |
| { |
| *cmd = '\0'; |
| } |
| else if (*(cmd - 1) == '\0') |
| { |
| VerifyOrExit(aArgc < aArgcMax, error = OT_ERROR_INVALID_ARGS); |
| aArgv[aArgc++] = cmd; |
| } |
| } |
| |
| exit: |
| return error; |
| } |
| |
| } // namespace Utils |
| } // namespace ot |