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//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright : (C) 2014 Eran Ifrah
// file name : clcommandlineparser.cpp
//
// -------------------------------------------------------------------------
// A
// _____ _ _ _ _
// / __ \ | | | | (_) |
// | / \/ ___ __| | ___| | _| |_ ___
// | | / _ \ / _ |/ _ \ | | | __/ _ )
// | \__/\ (_) | (_| | __/ |___| | || __/
// \____/\___/ \__,_|\___\_____/_|\__\___|
//
// F i l e
//
// This program 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; either version 2 of the License, or
// (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
#include "clcommandlineparser.h"
clCommandLineParser::clCommandLineParser(const wxString& str, size_t flags)
: m_commandline(str)
, m_flags(flags)
{
DoParse();
}
clCommandLineParser::~clCommandLineParser() {}
#define STATE_NORMAL 0
#define STATE_IN_SINGLE_QUOTES 1
#define STATE_IN_DOUBLE_QUOTES 2
#define PUSH_TOKEN() \
if(!curtoken.IsEmpty()) { m_tokens.Add(curtoken); } \
curtoken.Clear();
#define HANDLE_NEWLINE() \
if(!(m_flags & kIgnoreNewLines)) { curtoken << ch; }
void clCommandLineParser::DoParse()
{
wxString tmpstr = m_commandline;
wxString curtoken;
int state = STATE_NORMAL;
for(size_t i = 0; i < tmpstr.length(); ++i) {
wxChar ch = tmpstr.at(i);
switch(state) {
case STATE_NORMAL: {
switch(ch) {
case '\n':
case '\r':
HANDLE_NEWLINE();
break;
case ' ':
case '\t':
// whitespace, start new token
PUSH_TOKEN();
break;
case '"':
PUSH_TOKEN();
state = STATE_IN_DOUBLE_QUOTES;
break;
case '\'':
PUSH_TOKEN();
state = STATE_IN_SINGLE_QUOTES;
break;
default: {
// Normal
curtoken << ch;
break;
}
}
break;
}
case STATE_IN_DOUBLE_QUOTES:
if(ch == '"') {
PUSH_TOKEN();
state = STATE_NORMAL;
} else {
curtoken << ch;
}
break;
case STATE_IN_SINGLE_QUOTES:
if(ch == '\'') {
PUSH_TOKEN();
state = STATE_NORMAL;
} else {
curtoken << ch;
}
break;
}
}
PUSH_TOKEN();
}
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