Serious-Engine/Sources/Engine/Ska/smcScan.l

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2016-03-11 14:57:17 +01:00
%option prefix="syy"
%{
#include <Engine/Base/CTString.h>
#include <Engine/Base/CTString.inl>
#include <Engine/Base/FileName.h>
#include <Engine/Base/ErrorReporting.h>
#include <Engine/Templates/DynamicStackArray.cpp>
#include "ParsingSmbs.h"
#include "smcPars.h"
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extern CTFileName _fnmApplicationPath;
YYSTYPE syylval;
#ifdef __cplusplus
extern "C" { int syywrap(void); }
#endif
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int syywrap(void)
{
// no more buffers
return 1;
};
// declarations for recursive SMC script parsing
struct BufferStackEntry {
YY_BUFFER_STATE bse_bs;
const char *bse_strName;
const char *bse_strContents;
int bse_iLineCt;
BOOL bse_bParserEnd;
};
static BufferStackEntry _abseBufferStack[SMC_MAX_INCLUDE_LEVEL];
static int _ibsBufferStackTop = -1;
void SMCPushBuffer(const char *strName, const char *strBuffer, BOOL bParserEnd)
{
_ibsBufferStackTop++;
_abseBufferStack[_ibsBufferStackTop].bse_strContents = strdup(strBuffer);
_abseBufferStack[_ibsBufferStackTop].bse_strName = strdup(strName);
_abseBufferStack[_ibsBufferStackTop].bse_iLineCt = 1;
_abseBufferStack[_ibsBufferStackTop].bse_bParserEnd = bParserEnd;
_abseBufferStack[_ibsBufferStackTop].bse_bs = syy_scan_string((char*)(const char*)strBuffer);
syy_switch_to_buffer(_abseBufferStack[_ibsBufferStackTop].bse_bs);
}
BOOL SMCPopBuffer(void)
{
syy_delete_buffer( _abseBufferStack[_ibsBufferStackTop].bse_bs);
free((void*)_abseBufferStack[_ibsBufferStackTop].bse_strName);
free((void*)_abseBufferStack[_ibsBufferStackTop].bse_strContents);
BOOL bParserEnd = _abseBufferStack[_ibsBufferStackTop].bse_bParserEnd;
_ibsBufferStackTop--;
if (_ibsBufferStackTop>=0) {
syy_switch_to_buffer(_abseBufferStack[_ibsBufferStackTop].bse_bs);
}
return bParserEnd;
}
const char *SMCGetBufferName(void)
{
return _abseBufferStack[_ibsBufferStackTop].bse_strName;
}
int SMCGetBufferLineNumber(void)
{
return _abseBufferStack[_ibsBufferStackTop].bse_iLineCt;
}
int SMCGetBufferStackDepth(void)
{
return _ibsBufferStackTop;
}
const char *SMCGetBufferContents(void)
{
return _abseBufferStack[_ibsBufferStackTop].bse_strContents;
}
void SMCCountOneLine(void)
{
_abseBufferStack[_ibsBufferStackTop].bse_iLineCt++;
}
%}
%x COMMENT
%x INCLUDE
DIGIT [0-9]
HEXDIGIT [0-9A-Fa-f]
DOUBLEQUOTE \"
STRINGCONTENT ([^\"]|(\\\"))
NONEXP_FLT ({DIGIT}+"."{DIGIT}*)
EXP_FLT (({DIGIT}+("."({DIGIT}*)?)?)("E"|"e")("+"|"-")?{DIGIT}+)
%%
"#INCLUDE" BEGIN(INCLUDE);
"SE_SMC" { return(k_SE_SMC); }
"SE_END" { return(k_SE_END); }
"TFNM" { return(k_TFNM); }
"NAME" { return(k_NAME); }
"MESH" { return(k_MESH); }
"SKELETON" { return(k_SKELETON);}
"ANIMSET" { return(k_ANIMSET);}
"ANIMATION" { return(K_ANIMATION);}
"TEXTURES" { return(k_TEXTURES);}
"PARENTBONE" { return(k_PARENTBONE);}
"OFFSET" { return(k_OFFSET);}
"COLISION" { return(k_COLISION);}
"ANIMSPEED" { return(k_ANIMSPEED);}
"COLOR" { return(k_COLOR);}
"ALLFRAMESBBOX" { return(k_ALLFRAMESBBOX);}
<INCLUDE>[ \t]*"\"" /* eat the whitespace */
<INCLUDE>[^"\""]*"\"" { /* got the include file name */
if (SMCGetBufferStackDepth() >= SMC_MAX_INCLUDE_LEVEL) {
ThrowF_t("File '%s' line %d\nIncludes nested too deeply '%s'",SMCGetBufferName(), SMCGetBufferLineNumber(),yytext);
}
char strFileName[256];
strcpy(strFileName, yytext);
strFileName[strlen(strFileName)-1] = 0;
CTString strIncludeFile;
try {
strIncludeFile.Load_t(CTString(strFileName));
SMCPushBuffer(strFileName, strIncludeFile, FALSE);
} catch(char *strError) {
(void)strError;
ThrowF_t("File '%s'\n Could not open '%s' (line %d)",SMCGetBufferName(), strFileName, SMCGetBufferLineNumber());
}
BEGIN(INITIAL);
}
<INCLUDE>. { /* something unrecognized inside include statement */
BEGIN(INITIAL);
ThrowF_t("File '%s'\n Wrong syntax for include statement",SMCGetBufferName());
}
<<EOF>> {
if (SMCPopBuffer()) {
yyterminate();
}
}
/* single character operators and punctuations */
";"|","|"{"|"}" {
return(yytext[0]);}
/* constants */
"-"?{DIGIT}+ { syylval.i = atoi(yytext); return(c_int); }
"0x"{HEXDIGIT}+ { syylval.i = strtoul(yytext+2, NULL, 16); return(c_int);}
"-"?{NONEXP_FLT}("f"|"F")? { syylval.f = (float) atof(yytext); return(c_float); }
"-"?{EXP_FLT}("f"|"F")? { syylval.f = (float) atof(yytext); return(c_float); }
"\""{STRINGCONTENT}*"\"" {
char *strNew;
// remove double-quotes
yytext[strlen(yytext)-1] = 0;
strNew = yytext+1;
syylval.str = (const char*)strNew;
return(c_string);
}
/* eat up comments */
"/*" { BEGIN(COMMENT); }
<COMMENT>"* /" { BEGIN(INITIAL); }
<COMMENT>. {}
"//"[^\n]*\n { SMCCountOneLine(); }
/* eat up whitespace */
[ \t]+ {
}
/* eat up linefeeds and count lines in all conditions */
<*>\n {
SMCCountOneLine();;
}
/* for all unrecognized characters */
. {
// report an error
ThrowF_t("File '%s'\n Unrecognized character '%c' (line %d)", SMCGetBufferName(), yytext[0], SMCGetBufferLineNumber());
//ThrowF_t("Unrecognized character '%c' in line %d)", yytext[0], _yy_iLine );
}
%%