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/*
** Haaf's Game Engine 1.7
** Copyright (C) 2003-2007, Relish Games
** hge.relishgames.com
**
** Resource script parser implementation
*/
#include "parser.h"
HGE *RScriptParser::hge=0;
struct keyword
{
const char* word;
int code;
};
keyword keytable[]=
{
{ "=", TTEQUALS },
{ ":", TTBASED },
{ ",", TTSEPARATOR },
{ "{", TTOPENBLOCK },
{ "}", TTCLOSEBLOCK },
{ "true", TTBOOL },
{ "false", TTBOOL },
{ "Include", TTRES_INCLUDE },
{ "Resource", TTRES_RESOURCE },
{ "Texture", TTRES_TEXTURE },
{ "Sound", TTRES_SOUND },
{ "Music", TTRES_MUSIC },
{ "Stream", TTRES_STREAM },
{ "Target", TTRES_TARGET },
{ "Sprite", TTRES_SPRITE },
{ "Animation", TTRES_ANIMATION },
{ "Font", TTRES_FONT },
{ "Particle", TTRES_PARTICLE },
{ "Distortion", TTRES_DISTORT },
{ "StringTable",TTRES_STRTABLE },
{ "filename", TTPAR_FILENAME },
{ "resgroup", TTPAR_RESGROUP },
{ "mipmap", TTPAR_MIPMAP },
{ "amplify", TTPAR_AMPLIFY },
{ "size", TTPAR_SIZE },
{ "zbuffer", TTPAR_ZBUFFER },
{ "texture", TTPAR_TEXTURE },
{ "rect", TTPAR_RECT },
{ "hotspot", TTPAR_HOTSPOT },
{ "blendmode", TTPAR_BLENDMODE },
{ "color", TTPAR_COLOR },
{ "zorder", TTPAR_ZORDER },
{ "flip", TTPAR_FLIP },
{ "scale", TTPAR_SCALE },
{ "proportion", TTPAR_PROPORTION},
{ "rotation", TTPAR_ROTATION },
{ "frames", TTPAR_FRAMES },
{ "fps", TTPAR_FPS },
{ "mode", TTPAR_MODE },
{ "tracking", TTPAR_TRACKING },
{ "spacing", TTPAR_SPACING },
{ "sprite", TTPAR_SPRITE },
{ "mesh", TTPAR_MESH },
{ "COLORMUL", TTCON_COLORMUL },
{ "COLORADD", TTCON_COLORADD },
{ "ALPHABLEND", TTCON_ALPHABLND },
{ "ALPHAADD", TTCON_ALPHAADD },
{ "ZWRITE", TTCON_ZWRITE },
{ "NOZWRITE", TTCON_NOZWRITE },
{ "FORWARD", TTCON_FORWARD },
{ "REVERSE", TTCON_REVERSE },
{ "PINGPONG", TTCON_PINGPONG },
{ "NOPINGPONG", TTCON_NOPINGPONG},
{ "LOOP", TTCON_LOOP },
{ "NOLOOP", TTCON_NOLOOP },
{ "CIRCLE", TTCON_CIRCLE },
{ "RECT", TTCON_RECT },
{ "ALPHA", TTCON_ALPHA },
{ NULL, TTNONE }
};
RScriptParser::RScriptParser(char *name, char *scr)
{
hge=hgeCreate(HGE_VERSION);
scriptname=name;
script=scr;
tokenvalue[0]=0;
tokentype=TTNONE;
line=1;
}
int RScriptParser::get_token()
{
int i;
// Skip whitespaces and comments
for(;;)
{
while(*script==' ' || *script=='\t' || *script=='\n' || *script=='\r')
{
if(*script=='\n') line++;
script++;
}
if(*script==';') while(*script && *script!='\n' && *script!='\r') script++;
else break;
}
// End of script
if(!*script) { tokentype=TTEND; tokenvalue[0]=0; return tokentype; }
// Number
if((*script>='0' && *script<='9') || *script=='.' || *script=='-')
{
tokentype=TTNUMBER;
for(i=0;(*script>='0' && *script<='9') || *script=='.' || *script=='-';i++)
tokenvalue[i]=*script++;
// Hexadecimal number starting with decimal digit
if((*script>='A' && *script<='F') || (*script>='a' && *script<='f'))
{
tokentype=TTSTRING;
for(; (*script>='A' && *script<='F') || (*script>='a' && *script<='f') ; i++)
tokenvalue[i]=*script++;
}
tokenvalue[i]=0;
return tokentype;
}
// Quoted string
if(*script=='"')
{
tokentype=TTSTRING;
script++;
for(i=0;*script && *script!='"' && *script!='\n' && *script!='\r';i++)
tokenvalue[i]=*script++;
tokenvalue[i]=0;
if(*script) script++;
return tokentype;
}
// Keyword
for(i=0;keytable[i].word;i++)
if(!strtkcmp(keytable[i].word, script))
{
tokentype = keytable[i].code;
strcpy(tokenvalue,keytable[i].word);
script+=strlen(keytable[i].word);
return tokentype;
}
// Unquoted string or hexadecimal number
tokentype=TTSTRING;
for(i=0;
*script && *script!=' ' && *script!='\t' && *script!='\n' && *script!='\r'
&& *script!=',' && *script!='=' && *script!='{' && *script!='}' && *script!=':';
i++)
tokenvalue[i]=*script++;
tokenvalue[i]=0;
return tokentype;
}
bool RScriptParser::strtkcmp(const char* str, const char* mem)
{
int i,len=strlen(str);
for(i=0;i<len;i++)
{
if(!mem[i]) return true;
if(mem[i] != str[i]) return true;
}
return false;
}
DWORD RScriptParser::tkn_hex()
{
int i;
DWORD dw=0;
char chr;
for(i=0; tokenvalue[i]; i++)
{
chr=tokenvalue[i];
if(chr >= 'a') chr-='a'-':';
if(chr >= 'A') chr-='A'-':';
chr-='0';
if(chr>0xF) chr=0xF;
dw=(dw << 4) | chr;
}
return dw;
}
void RScriptParser::ScriptPostError(const char *msg1, const char *msg2)
{
hge->System_Log("%s, line %d: %s'%s'%s",
get_name(), get_line(), msg1, tokenvalue[0] ? tkn_string():"<EOF>", msg2);
}
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