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+/** \file Parse.cpp - parse a string
+ **
+ ** Written: 1999-Feb-10 grymse@alhem.net
+ **/
+
+/*
+Copyright (C) 1999-2007 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 <stdlib.h>
+#include <string.h>
+
+#include "Parse.h"
+
+
+#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(const char c)
+{
+ for (size_t i = 0; i < pa_splits.size(); i++)
+ if (pa_splits[i] == c)
+ return 1;
+ return 0;
+}
+
+void Parse::getsplit()
+{
+ 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()
+{
+ 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()
+{
+ Parse::getword();
+ return atol(pa_ord.c_str());
+}
+
+void Parse::setbreak(const char c)
+{
+ pa_breakchar = c;
+}
+
+int Parse::getwordlen()
+{
+ 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()
+{
+ 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()
+{
+ 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
+
+
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