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Location: cpp/openttd-patchpack/source/src/misc/getoptdata.cpp - annotation
r27487:4d1c2a7bde00
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Codechange: remove queue_wrap / last_position from mouse movement
No backend uses it anymore, so also no longer any need to support
it.
No backend uses it anymore, so also no longer any need to support
it.
r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r21383:942c32fb8b0e r21383:942c32fb8b0e r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17346:c18704fa8b81 r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17346:c18704fa8b81 r17346:c18704fa8b81 r17345:004d0fa71cbd r23607:36c15679007d r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r23607:36c15679007d r23607:36c15679007d r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17345:004d0fa71cbd r17345:004d0fa71cbd r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r23607:36c15679007d r17346:c18704fa8b81 r17346:c18704fa8b81 r23607:36c15679007d r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17345:004d0fa71cbd r17346:c18704fa8b81 r17346:c18704fa8b81 r23607:36c15679007d r17346:c18704fa8b81 r23607:36c15679007d r17346:c18704fa8b81 r17346:c18704fa8b81 r17347:bec287aaac6e r17347:bec287aaac6e r17347:bec287aaac6e r17347:bec287aaac6e r17347:bec287aaac6e r17347:bec287aaac6e r17347:bec287aaac6e r17347:bec287aaac6e r17347:bec287aaac6e r17346:c18704fa8b81 r17346:c18704fa8b81 r17346:c18704fa8b81 r17345:004d0fa71cbd r17345:004d0fa71cbd r17345:004d0fa71cbd r17346:c18704fa8b81 r17346:c18704fa8b81 r17345:004d0fa71cbd r17345:004d0fa71cbd | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file getoptdata.cpp Library for parsing command line options. */
#include "../stdafx.h"
#include "getoptdata.h"
#include "../safeguards.h"
/**
* Find the next option.
* @return Function returns one
* - An option letter if it found another option.
* - -1 if option processing is finished. Inspect #argv and #numleft to find the command line arguments.
* - -2 if an error was encountered.
*/
int GetOptData::GetOpt()
{
const OptionData *odata;
char *s = this->cont;
if (s == nullptr) {
if (this->numleft == 0) return -1; // No arguments left -> finished.
s = this->argv[0];
if (*s != '-') return -1; // No leading '-' -> not an option -> finished.
this->argv++;
this->numleft--;
/* Is it a long option? */
for (odata = this->options; odata->flags != ODF_END; odata++) {
if (odata->longname != nullptr && !strcmp(odata->longname, s)) { // Long options always use the entire argument.
this->cont = nullptr;
goto set_optval;
}
}
s++; // Skip leading '-'.
}
/* Is it a short option? */
for (odata = this->options; odata->flags != ODF_END; odata++) {
if (odata->shortname != '\0' && *s == odata->shortname) {
this->cont = (s[1] != '\0') ? s + 1 : nullptr;
set_optval: // Handle option value of *odata .
this->opt = nullptr;
switch (odata->flags) {
case ODF_NO_VALUE:
return odata->id;
case ODF_HAS_VALUE:
case ODF_OPTIONAL_VALUE:
if (this->cont != nullptr) { // Remainder of the argument is the option value.
this->opt = this->cont;
this->cont = nullptr;
return odata->id;
}
/* No more arguments, either return an error or a value-less option. */
if (this->numleft == 0) return (odata->flags == ODF_HAS_VALUE) ? -2 : odata->id;
/* Next argument looks like another option, let's not return it as option value. */
if (odata->flags == ODF_OPTIONAL_VALUE && this->argv[0][0] == '-') return odata->id;
this->opt = this->argv[0]; // Next argument is the option value.
this->argv++;
this->numleft--;
return odata->id;
default: NOT_REACHED();
}
}
}
return -2; // No other ways to interpret the text -> error.
}
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