158 lines
3.4 KiB
C++
158 lines
3.4 KiB
C++
/* Mednafen - Multi-system Emulator
|
|
*
|
|
* 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 "../mednafen.h"
|
|
#include "escape.h"
|
|
|
|
static unsigned int hex_nibble_to_val(char nibble)
|
|
{
|
|
unsigned int ret = 0;
|
|
nibble = tolower(nibble);
|
|
|
|
if(nibble >= '0' && nibble <= '9')
|
|
ret = nibble - '0';
|
|
else
|
|
ret = nibble - 'a';
|
|
|
|
return(ret);
|
|
}
|
|
|
|
void unescape_string(char *string)
|
|
{
|
|
char *src = string;
|
|
bool inescape = 0;
|
|
uint8 hoval = 0;
|
|
int inhex = 0;
|
|
int inoctal = 0;
|
|
|
|
while(*src)
|
|
{
|
|
if(*src == '\\')
|
|
{
|
|
inescape = TRUE;
|
|
inhex = 0;
|
|
inoctal = 0;
|
|
}
|
|
else if(inhex)
|
|
{
|
|
if(inhex == 1)
|
|
{
|
|
hoval = hex_nibble_to_val(*src) << 4;
|
|
inhex++;
|
|
}
|
|
else if(inhex == 2)
|
|
{
|
|
hoval |= hex_nibble_to_val(*src);
|
|
*string = hoval;
|
|
string++;
|
|
hoval = 0;
|
|
inhex = 0;
|
|
}
|
|
}
|
|
else if(inoctal)
|
|
{
|
|
if(inoctal == 1)
|
|
{
|
|
hoval = (*src - '0') * 8 * 8;
|
|
}
|
|
else if(inoctal == 2)
|
|
{
|
|
hoval += (*src - '0') * 8;
|
|
}
|
|
else
|
|
{
|
|
hoval += *src - '0';
|
|
*string = hoval;
|
|
string++;
|
|
hoval = 0;
|
|
inoctal = 0;
|
|
}
|
|
}
|
|
else if(inescape)
|
|
{
|
|
switch(*src)
|
|
{
|
|
case 'a': *string = 7; string++; break;
|
|
case 'b': *string = 8; string++; break;
|
|
case 'f': *string = 12; string++; break;
|
|
case 'n': *string = 10; string++; break;
|
|
case 'r': *string = 13; string++; break;
|
|
case 't': *string = 9; string++; break;
|
|
case 'v': *string = 11; string++; break;
|
|
|
|
case '\\': *string = '\\'; string++; break;
|
|
case '?': *string = '?'; string++; break;
|
|
case '\'': *string = '\''; string++; break;
|
|
case '"': *string = '"'; string++; break;
|
|
|
|
case 'o': inoctal = 1; break;
|
|
case 'x': inhex = 1; break;
|
|
|
|
|
|
default: *string = *src; string++; break;
|
|
}
|
|
inescape = 0;
|
|
}
|
|
else
|
|
{
|
|
*string = *src;
|
|
string++;
|
|
}
|
|
src++;
|
|
}
|
|
*string = 0;
|
|
}
|
|
|
|
char *escape_string(const char *text)
|
|
{
|
|
uint32 slen = strlen(text);
|
|
char *ret = (char*)malloc(slen * 4 + 1); // \xFF
|
|
char *outoo = ret;
|
|
|
|
for(uint32 x = 0; x < slen; x++)
|
|
{
|
|
int c = (uint8)text[x];
|
|
|
|
if(c < 0x20 || c == 0x7F || c == '\\' || c == '\'' || c == '"')
|
|
{
|
|
*outoo++ = '\\';
|
|
|
|
switch(c)
|
|
{
|
|
case '\\': *outoo++ = '\\'; break;
|
|
case '\'': *outoo++ = '\''; break;
|
|
case '"': *outoo++ = '"'; break;
|
|
case 7: *outoo++ = 'a'; break;
|
|
case 8: *outoo++ = 'b'; break;
|
|
case 12: *outoo++ = 'f'; break;
|
|
case 10: *outoo++ = 'n'; break;
|
|
case 13: *outoo++ = 'r'; break;
|
|
case 9: *outoo++ = 't'; break;
|
|
case 11: *outoo++ = 'v'; break;
|
|
|
|
default: outoo += sprintf(outoo, "x%02x", c); break;
|
|
}
|
|
}
|
|
else
|
|
*outoo++ = c;
|
|
}
|
|
|
|
*outoo = 0;
|
|
|
|
return(ret);
|
|
}
|