2013-02-16 16:14:39 -08:00

328 lines
6.1 KiB
C++

/** \file Parse.cpp - parse a string
**
** Written: 1999-Feb-10 grymse@alhem.net
**/
/*
Copyright (C) 1999-2005 Anders Hedstrom
This library is made available under the terms of the GNU GPL.
If you would like to use this library in a closed-source application,
a separate license agreement is available. For information about
the closed-source license agreement for the C++ sockets library,
please visit http://www.alhem.net/Sockets/license.html and/or
email license@alhem.net.
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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "Parse.h"
#ifdef _DEBUG
#define DEB(x)
#else
#define DEB(x)
#endif
#ifdef SOCKETS_NAMESPACE
namespace SOCKETS_NAMESPACE {
#endif
/* implementation of class Parse */
Parse::Parse()
:pa_the_str("")
,pa_splits("")
,pa_ord("")
,pa_the_ptr(0)
,pa_breakchar(0)
,pa_enable(0)
,pa_disable(0)
,pa_nospace(0)
,pa_quote(false)
{
}
Parse::Parse(const std::string&s)
:pa_the_str(s)
,pa_splits("")
,pa_ord("")
,pa_the_ptr(0)
,pa_breakchar(0)
,pa_enable(0)
,pa_disable(0)
,pa_nospace(0)
,pa_quote(false)
{
}
Parse::Parse(const std::string&s,const std::string&sp)
:pa_the_str(s)
,pa_splits(sp)
,pa_ord("")
,pa_the_ptr(0)
,pa_breakchar(0)
,pa_enable(0)
,pa_disable(0)
,pa_nospace(0)
,pa_quote(false)
{
}
Parse::Parse(const std::string&s,const std::string&sp,short nospace)
:pa_the_str(s)
,pa_splits(sp)
,pa_ord("")
,pa_the_ptr(0)
,pa_breakchar(0)
,pa_enable(0)
,pa_disable(0)
,pa_nospace(1)
,pa_quote(false)
{
}
Parse::~Parse()
{
}
#define C ((pa_the_ptr<pa_the_str.size()) ? pa_the_str[pa_the_ptr] : 0)
short Parse::issplit(char c)
{
for (size_t i = 0; i < pa_splits.size(); i++)
if (pa_splits[i] == c)
return 1;
return 0;
}
void Parse::getsplit(void)
{
size_t x;
if (C == '=')
{
x = pa_the_ptr++;
} else
{
while (C && (issplit(C)))
pa_the_ptr++;
x = pa_the_ptr;
while (C && !issplit(C) && C != '=')
pa_the_ptr++;
}
if (x == pa_the_ptr && C == '=')
pa_the_ptr++;
pa_ord = (x < pa_the_str.size()) ? pa_the_str.substr(x,pa_the_ptr - x) : "";
}
std::string Parse::getword(void)
{
size_t x;
int disabled = 0;
int quote = 0;
int rem = 0;
if (pa_nospace)
{
while (C && issplit(C))
pa_the_ptr++;
x = pa_the_ptr;
while (C && !issplit(C) && (C != pa_breakchar || !pa_breakchar || disabled))
{
if (pa_breakchar && C == pa_disable)
disabled = 1;
if (pa_breakchar && C == pa_enable)
disabled = 0;
if (pa_quote && C == '"')
quote = 1;
pa_the_ptr++;
while (quote && C && C != '"')
{
pa_the_ptr++;
}
if (pa_quote && C == '"')
{
pa_the_ptr++;
}
quote = 0;
}
} else
{
if (C == pa_breakchar && pa_breakchar)
{
x = pa_the_ptr++;
rem = 1;
} else
{
while (C && (C == ' ' || C == 9 || C == 13 || C == 10 || issplit(C)))
pa_the_ptr++;
x = pa_the_ptr;
while (C && C != ' ' && C != 9 && C != 13 && C != 10 && !issplit(C) &&
(C != pa_breakchar || !pa_breakchar || disabled))
{
if (pa_breakchar && C == pa_disable)
disabled = 1;
if (pa_breakchar && C == pa_enable)
disabled = 0;
if (pa_quote && C == '"')
{
quote = 1;
pa_the_ptr++;
while (quote && C && C != '"')
{
pa_the_ptr++;
}
if (pa_quote && C == '"')
{
pa_the_ptr++;
}
}
else
pa_the_ptr++;
quote = 0;
}
pa_the_ptr++;
rem = 1;
}
if (x == pa_the_ptr && C == pa_breakchar && pa_breakchar)
pa_the_ptr++;
}
if (x < pa_the_str.size())
{
pa_ord = pa_the_str.substr(x,pa_the_ptr - x - rem);
}
else
{
pa_ord = "";
}
return pa_ord;
}
void Parse::getword(std::string&s)
{
s = Parse::getword();
}
void Parse::getsplit(std::string&s)
{
Parse::getsplit();
s = pa_ord;
}
void Parse::getword(std::string&s,std::string&fill,int l)
{
Parse::getword();
s = "";
while (s.size() + pa_ord.size() < (size_t)l)
s += fill;
s += pa_ord;
}
std::string Parse::getrest()
{
std::string s;
while (C && (C == ' ' || C == 9 || issplit(C)))
pa_the_ptr++;
s = (pa_the_ptr < pa_the_str.size()) ? pa_the_str.substr(pa_the_ptr) : "";
return s;
}
void Parse::getrest(std::string&s)
{
while (C && (C == ' ' || C == 9 || issplit(C)))
pa_the_ptr++;
s = (pa_the_ptr < pa_the_str.size()) ? pa_the_str.substr(pa_the_ptr) : "";
}
long Parse::getvalue(void)
{
Parse::getword();
return atol(pa_ord.c_str());
}
void Parse::setbreak(char c)
{
pa_breakchar = c;
}
int Parse::getwordlen(void)
{
size_t x,y = pa_the_ptr,len;
if (C == pa_breakchar && pa_breakchar)
{
x = pa_the_ptr++;
} else
{
while (C && (C == ' ' || C == 9 || C == 13 || C == 10 || issplit(C)))
pa_the_ptr++;
x = pa_the_ptr;
while (C && C != ' ' && C != 9 && C != 13 && C != 10 && !issplit(C) && (C != pa_breakchar || !pa_breakchar))
pa_the_ptr++;
}
if (x == pa_the_ptr && C == pa_breakchar && pa_breakchar)
pa_the_ptr++;
len = pa_the_ptr - x;
pa_the_ptr = y;
return (int)len;
}
int Parse::getrestlen(void)
{
size_t y = pa_the_ptr;
size_t len;
while (C && (C == ' ' || C == 9 || issplit(C)))
pa_the_ptr++;
len = strlen(pa_the_str.c_str() + pa_the_ptr);
pa_the_ptr = y;
return (int)len;
}
void Parse::getline(void)
{
size_t x;
x = pa_the_ptr;
while (C && C != 13 && C != 10)
pa_the_ptr++;
pa_ord = (x < pa_the_str.size()) ? pa_the_str.substr(x,pa_the_ptr - x) : "";
if (C == 13)
pa_the_ptr++;
if (C == 10)
pa_the_ptr++;
}
void Parse::getline(std::string&s)
{
getline();
s = pa_ord;
}
/* end of implementation of class Parse */
/***************************************************/
#ifdef SOCKETS_NAMESPACE
}
#endif