156 lines
5.0 KiB
C
156 lines
5.0 KiB
C
/*
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Nullsoft Expression Evaluator Library (NS-EEL)
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Copyright (C) 1999-2003 Nullsoft, Inc.
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ns-eel-int.h: internal code definition header.
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef __NS_EELINT_H__
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#define __NS_EELINT_H__
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#include "ns-eel.h"
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#include "ns-eel-addfuncs.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define FN_ASSIGN 0
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#define FN_MULTIPLY 1
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#define FN_DIVIDE 2
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#define FN_MODULO 3
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#define FN_ADD 4
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#define FN_SUB 5
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#define FN_AND 6
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#define FN_OR 7
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#define FN_UMINUS 8
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#define FN_UPLUS 9
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#define MATH_SIMPLE 0
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#define MATH_FN 1
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#define YYSTYPE int
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typedef struct
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{
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double **varTable_Values;
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char **varTable_Names;
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int varTable_numBlocks;
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int errVar;
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int colCount;
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int result;
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char last_error_string[256];
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YYSTYPE yylval;
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int yychar; /* the lookahead symbol */
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int yynerrs; /* number of parse errors so far */
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char yytext[256];
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char lastVar[256];
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char *llsave[16]; /* Look ahead buffer */
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char llbuf[100]; /* work buffer */
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char *llp1;// = &llbuf[0]; /* pointer to next avail. in token */
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char *llp2;// = &llbuf[0]; /* pointer to end of lookahead */
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char *llend;// = &llbuf[0]; /* pointer to end of token */
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char *llebuf;// = &llbuf[sizeof llbuf];
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int lleof;
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int yyline;// = 0;
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void *tmpblocks_head,*blocks_head;
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int computTableTop; // make it abort on potential overflow =)
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int l_stats[4]; // source bytes, static code bytes, call code bytes, data bytes
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void *userfunc_data[64];
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}
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compileContext;
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typedef struct {
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char *name;
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void *afunc;
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void *func_e;
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int nParams;
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NSEEL_PPPROC pProc;
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} functionType;
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extern functionType *nseel_getFunctionFromTable(int idx);
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int nseel_createCompiledValue(compileContext *ctx, double value, double *addrValue);
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int nseel_createCompiledFunction1(compileContext *ctx, int fntype, int fn, int code);
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int nseel_createCompiledFunction2(compileContext *ctx, int fntype, int fn, int code1, int code2);
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int nseel_createCompiledFunction3(compileContext *ctx, int fntype, int fn, int code1, int code2, int code3);
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extern double nseel_globalregs[100];
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void nseel_resetVars(compileContext *ctx);
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double *nseel_getVarPtr(compileContext *ctx, char *varName);
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double *nseel_registerVar(compileContext *ctx, char *varName);
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// other shat
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int nseel_setVar(compileContext *ctx, int varNum);
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int nseel_getVar(compileContext *ctx, int varNum);
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void *nseel_compileExpression(compileContext *ctx, char *txt);
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#define VALUE 258
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#define IDENTIFIER 259
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#define FUNCTION1 260
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#define FUNCTION2 261
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#define FUNCTION3 262
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#define UMINUS 263
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#define UPLUS 264
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int nseel_translate(compileContext *ctx, int type);
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void nseel_count(compileContext *ctx);
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void nseel_setLastVar(compileContext *ctx);
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int nseel_lookup(compileContext *ctx, int *typeOfObject);
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int nseel_yyerror(compileContext *ctx);
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int nseel_yylex(compileContext *ctx, char **exp);
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int nseel_yyparse(compileContext *ctx, char *exp);
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void nseel_llinit(compileContext *ctx);
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int nseel_gettoken(compileContext *ctx, char *lltb, int lltbsiz);
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struct lextab {
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int llendst; /* Last state number */
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char *lldefault; /* Default state table */
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char *llnext; /* Next state table */
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char *llcheck; /* Check table */
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int *llbase; /* Base table */
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int llnxtmax; /* Last in next table */
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int (*llmove)(); /* Move between states */
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char *llfinal; /* Final state descriptions */
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int (*llactr)(); /* Action routine */
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int *lllook; /* Look ahead vector if != NULL */
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char *llign; /* Ignore char vec if != NULL */
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char *llbrk; /* Break char vec if != NULL */
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char *llill; /* Illegal char vec if != NULL */
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};
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extern struct lextab nseel_lextab;
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#ifdef __cplusplus
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}
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#endif
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#endif//__NS_EELINT_H__
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