dscript/stringtable.cpp at master · rossipedia/dscript · GitHub

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////////////////////////////////////////////////////////////////////////////////
// DScript Scripting Language
// Copyright (C) 2003 Bryan "daerid" Ross
//
// Permission to copy, use, modify, sell and distribute this software is
// granted provided this copyright notice appears in all copies. This
// software is provided "as is" without express or implied warranty, and
// with no claim as to its suitability for any purpose.
////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
// DScript Includes
#include"stringtable.h"
////////////////////////////////////////////////////////////////////////////////

usingnamespacestd;
usingnamespacedscript;

string_table::entry string_table::insert(const string& val)
{
typedef set<string>::const_iterator iter_t;
typedef pair<iter_t,bool> ret_t;
ret_t r = m_strings.insert(val);
return r.first->c_str();
}

string_table::entry string_table::find(const string& val)
{
typedef set<string>::const_iterator c_iter;
 c_iter found = m_strings.find(val);
if(found == m_strings.end())
return0;
else
return found->c_str();
}

string dscript::escape(const string& str)
{
typedef string::const_iterator iter_t;
iter_t st = str.begin(); // skip beginning "
iter_t en = str.end(); // skip ending "
// not the fastest way of doing it, but it works
 string res;
for(; st != en; ++st)
 {
switch(*st)
 {
case'\n':
 res.append("\\n");
break;
case'\t':
 res.append("\\t");
break;
case'\r':
 res.append("\\r");
break;
case'\f':
 res.append("\\f");
break;
case'"':
 res.append("\\\"");
break;
default:
 res.push_back(*st);
 }
 }
return res;
}

string dscript::unescape(const string& str)
{
typedef string::const_iterator iter_t;
iter_t st = str.begin() + 1; // skip beginning "
iter_t en = str.end() - 1; // skip ending "
// not the fastest way of doing it, but it works
 string res;
for(; st != en; ++st)
 {
if(*st == '\\')
 {
// check next
 ++st;
switch(*st)
 {
case'n':
 res.push_back('\n');
break;
case't':
 res.push_back('\t');
break;
case'r':
 res.push_back('\r');
break;
case'f':
 res.push_back('\f');
break;
case'"':
 res.push_back('"');
break;
default:
 res.push_back(*st);
 }
 }
else
 res.push_back(*st);
 }
return res;
}