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562 lines
15 KiB
562 lines
15 KiB
/* antlr.h
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*
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* SOFTWARE RIGHTS
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*
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* We reserve no LEGAL rights to the Purdue Compiler Construction Tool
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* Set (PCCTS) -- PCCTS is in the public domain. An individual or
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* company may do whatever they wish with source code distributed with
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* PCCTS or the code generated by PCCTS, including the incorporation of
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* PCCTS, or its output, into commerical software.
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*
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* We encourage users to develop software with PCCTS. However, we do ask
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* that credit is given to us for developing PCCTS. By "credit",
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* we mean that if you incorporate our source code into one of your
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* programs (commercial product, research project, or otherwise) that you
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* acknowledge this fact somewhere in the documentation, research report,
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* etc... If you like PCCTS and have developed a nice tool with the
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* output, please mention that you developed it using PCCTS. In
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* addition, we ask that this header remain intact in our source code.
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* As long as these guidelines are kept, we expect to continue enhancing
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* this system and expect to make other tools available as they are
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* completed.
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*
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* ANTLR 1.33
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* Terence Parr
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* Parr Research Corporation
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* with Purdue University and AHPCRC, University of Minnesota
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* 1989-1995
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*/
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#ifndef ANTLR_H
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#define ANTLR_H
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#include "btconfig.h"
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/*
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* Define all of the stack setup and manipulation of $i, #i variables.
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*
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* Notes:
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* The type 'Attrib' must be defined before entry into this .h file.
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*/
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#include <stdlib.h>
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#include <string.h>
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typedef int ANTLRTokenType;
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typedef unsigned char SetWordType;
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typedef char ANTLRChar;
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/* G u e s s S t u f f */
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#ifdef ZZCAN_GUESS
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#ifndef ZZINF_LOOK
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#define ZZINF_LOOK
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#endif
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#endif
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#ifdef ZZCAN_GUESS
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typedef struct _zzjmp_buf {
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jmp_buf state;
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} zzjmp_buf;
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#endif
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/* can make this a power of 2 for more efficient lookup */
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#ifndef ZZLEXBUFSIZE
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#define ZZLEXBUFSIZE 2000
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#endif
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#define zzOvfChk \
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if ( zzasp <= 0 ) \
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{ \
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fprintf(stderr, zzStackOvfMsg, __FILE__, __LINE__); \
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exit(PCCTS_EXIT_FAILURE); \
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}
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#ifndef ZZA_STACKSIZE
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#define ZZA_STACKSIZE 400
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#endif
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#ifndef ZZAST_STACKSIZE
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#define ZZAST_STACKSIZE 400
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#endif
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#ifndef zzfailed_pred
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#define zzfailed_pred(_p) \
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fprintf(stderr, "semantic error; failed predicate: '%s'\n",_p)
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#endif
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#ifdef LL_K
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#define LOOKAHEAD \
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int zztokenLA[LL_K]; \
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char zztextLA[LL_K][ZZLEXBUFSIZE]; \
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int zzlap = 0, zzlabase=0; /* labase only used for DEMAND_LOOK */
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#else
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#define LOOKAHEAD \
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int zztoken;
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#endif
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#ifndef zzcr_ast
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#define zzcr_ast(ast,attr,tok,text)
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#endif
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#ifdef DEMAND_LOOK
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#define DemandLookData int zzdirty=1;
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#else
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#define DemandLookData
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#endif
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/* S t a t e S t u f f */
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#ifdef ZZCAN_GUESS
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#define zzGUESS_BLOCK zzantlr_state zzst; int zzrv;
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#define zzGUESS zzsave_antlr_state(&zzst); \
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zzguessing = 1; \
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zzrv = setjmp(zzguess_start.state);
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#define zzGUESS_FAIL longjmp(zzguess_start.state, 1)
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#define zzGUESS_DONE zzrestore_antlr_state(&zzst);
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#define zzNON_GUESS_MODE if ( !zzguessing )
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#define zzGuessData \
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zzjmp_buf zzguess_start; \
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int zzguessing;
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#else
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#define zzGUESS_BLOCK
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#define zzGUESS
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#define zzGUESS_FAIL
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#define zzGUESS_DONE
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#define zzNON_GUESS_MODE
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#define zzGuessData
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#endif
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typedef struct _zzantlr_state {
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#ifdef ZZCAN_GUESS
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zzjmp_buf guess_start;
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int guessing;
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#endif
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int asp;
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int ast_sp;
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#ifdef ZZINF_LOOK
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int inf_lap; /* not sure we need to save this one */
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int inf_labase;
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int inf_last;
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#endif
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#ifdef DEMAND_LOOK
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int dirty;
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#endif
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#ifdef LL_K
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int tokenLA[LL_K];
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char textLA[LL_K][ZZLEXBUFSIZE];
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int lap;
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int labase;
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#else
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int token;
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char text[ZZLEXBUFSIZE];
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#endif
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} zzantlr_state;
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/* I n f i n i t e L o o k a h e a d */
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#ifdef ZZINF_LOOK
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#define InfLookData \
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int *zzinf_tokens; \
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char **zzinf_text; \
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char *zzinf_text_buffer; \
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int *zzinf_line; \
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int zzinf_labase; \
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int zzinf_last;
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#else
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#define InfLookData
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#endif
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#ifdef ZZINF_LOOK
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#ifndef ZZINF_DEF_TEXT_BUFFER_SIZE
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#define ZZINF_DEF_TEXT_BUFFER_SIZE 20000
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#endif
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#ifndef ZZINF_DEF_TOKEN_BUFFER_SIZE
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#define ZZINF_DEF_TOKEN_BUFFER_SIZE 2000
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#endif
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/* WARNING!!!!!!
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* ZZINF_BUFFER_TEXT_CHUNK_SIZE must be > sizeof(text) largest possible token.
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*/
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#ifndef ZZINF_BUFFER_TEXT_CHUNK_SIZE
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#define ZZINF_BUFFER_TEXT_CHUNK_SIZE 5000
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#endif
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#ifndef ZZINF_BUFFER_TOKEN_CHUNK_SIZE
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#define ZZINF_BUFFER_TOKEN_CHUNK_SIZE 1000
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#endif
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#if ZZLEXBUFSIZE > ZZINF_BUFFER_TEXT_CHUNK_SIZE
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#define ZZINF_BUFFER_TEXT_CHUNK_SIZE ZZLEXBUFSIZE+5
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#endif
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/* make inf_look user-access macros */
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#ifdef LL_K
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#define ZZINF_LA_VALID(i) (((zzinf_labase+i-1)-LL_K+1) <= zzinf_last)
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#define ZZINF_LA(i) zzinf_tokens[(zzinf_labase+i-1)-LL_K+1]
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#define ZZINF_LATEXT(i) zzinf_text[(zzinf_labase+i-1)-LL_K+1]
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/* #define ZZINF_LINE(i) zzinf_line[(zzinf_labase+i-1)-LL_K+1]*/
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#else
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#define ZZINF_LA_VALID(i) (((zzinf_labase+i-1)) <= zzinf_last)
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#define ZZINF_LA(i) zzinf_tokens[(zzinf_labase+i-1)]
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#define ZZINF_LATEXT(i) zzinf_text[(zzinf_labase+i-1)]
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#endif
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#define inf_zzgettok _inf_zzgettok()
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extern void _inf_zzgettok();
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#endif /* ZZINF_LOOK */
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#ifdef LL_K
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#define ANTLR_INFO \
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Attrib zzempty_attr(void) {static Attrib a; return a;} \
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Attrib zzconstr_attr(int _tok, char *_text)\
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{Attrib a; zzcr_attr((&a),_tok,_text); return a;} \
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int zzasp=ZZA_STACKSIZE; \
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char zzStackOvfMsg[]="fatal: attrib/AST stack overflow %s(%d)!\n"; \
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Attrib zzaStack[ZZA_STACKSIZE]; DemandLookData \
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InfLookData \
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zzGuessData
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#else
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#define ANTLR_INFO \
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Attrib zzempty_attr(void) {static Attrib a; return a;} \
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Attrib zzconstr_attr(int _tok, char *_text)\
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{Attrib a; zzcr_attr((&a),_tok,_text); return a;} \
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int zzasp=ZZA_STACKSIZE; \
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char zzStackOvfMsg[]="fatal: attrib/AST stack overflow %s(%d)!\n"; \
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Attrib zzaStack[ZZA_STACKSIZE]; DemandLookData \
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InfLookData \
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zzGuessData
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#endif /* LL_k */
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#ifdef ZZINF_LOOK
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#ifdef LL_K
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#ifdef DEMAND_LOOK
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#define zzPrimeLookAhead {zzdirty=LL_K; zzlap = zzlabase = 0;}
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#else
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#define zzPrimeLookAhead {zzlap = zzlabase = 0; zzfill_inf_look();\
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{int _i; for(_i=1;_i<=LL_K; _i++) \
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{zzCONSUME;} zzlap = zzlabase = 0;}}
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#endif
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#else /* LL_K */
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#ifdef DEMAND_LOOK
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#define zzPrimeLookAhead zzfill_inf_look(); zzdirty=1
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#else
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#define zzPrimeLookAhead zzfill_inf_look(); inf_zzgettok
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#endif
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#endif /* LL_K */
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#else /* ZZINF_LOOK */
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#ifdef LL_K
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#ifdef DEMAND_LOOK
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#define zzPrimeLookAhead {zzdirty=LL_K; zzlap = zzlabase = 0;}
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#else
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#define zzPrimeLookAhead {int _i; zzlap = 0; for(_i=1;_i<=LL_K; _i++) \
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{zzCONSUME;} zzlap = 0;}
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#endif
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#else
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#ifdef DEMAND_LOOK
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#define zzPrimeLookAhead zzdirty=1
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#else
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#define zzPrimeLookAhead zzgettok()
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#endif
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#endif /* LL_K */
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#endif /* ZZINF_LOOK */
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#ifdef LL_K
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#define zzenterANTLRs(s) \
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zzlextext = &(zztextLA[0][0]); zzrdstr( s ); zzPrimeLookAhead;
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#define zzenterANTLRf(f) \
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zzlextext = &(zztextLA[0][0]); zzrdfunc( f ); zzPrimeLookAhead;
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#define zzenterANTLR(f) \
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zzlextext = &(zztextLA[0][0]); zzrdstream( f ); zzPrimeLookAhead;
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#ifdef ZZINF_LOOK
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#define zzleaveANTLR(f) free(zzinf_text_buffer); free(zzinf_text); free(zzinf_tokens); free(zzinf_line);
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#define zzleaveANTLRf(f) free(zzinf_text_buffer); free(zzinf_text); free(zzinf_tokens); free(zzinf_line);
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#define zzleaveANTLRs(f) free(zzinf_text_buffer); free(zzinf_text); free(zzinf_tokens); free(zzinf_line);
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#else
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#define zzleaveANTLR(f)
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#define zzleaveANTLRf(f)
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#define zzleaveANTLRs(f)
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#endif
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#else
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#define zzenterANTLRs(s) \
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{static char zztoktext[ZZLEXBUFSIZE]; \
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zzlextext = zztoktext; zzrdstr( s ); zzPrimeLookAhead;}
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#define zzenterANTLRf(f) \
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{static char zztoktext[ZZLEXBUFSIZE]; \
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zzlextext = zztoktext; zzrdfunc( f ); zzPrimeLookAhead;}
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#define zzenterANTLR(f) \
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{static char zztoktext[ZZLEXBUFSIZE]; \
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zzlextext = zztoktext; zzrdstream( f ); zzPrimeLookAhead;}
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#ifdef ZZINF_LOOK
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#define zzleaveANTLR(f) free(zzinf_text_buffer); free(zzinf_text); free(zzinf_tokens); free(zzinf_line);
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#define zzleaveANTLRf(f) free(zzinf_text_buffer); free(zzinf_text); free(zzinf_tokens); free(zzinf_line);
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#define zzleaveANTLRs(f) free(zzinf_text_buffer); free(zzinf_text); free(zzinf_tokens); free(zzinf_line);
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#else
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#define zzleaveANTLR(f)
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#define zzleaveANTLRf(f)
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#define zzleaveANTLRs(f)
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#endif
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#endif
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#define ANTLR(st, f) zzbufsize = ZZLEXBUFSIZE; \
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zzenterANTLR(f); \
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st; ++zzasp; \
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zzleaveANTLR(f);
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#define ANTLRm(st, f, _m) zzbufsize = ZZLEXBUFSIZE; \
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zzmode(_m); \
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zzenterANTLR(f); \
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st; ++zzasp; \
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zzleaveANTLR(f);
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#define ANTLRf(st, f) zzbufsize = ZZLEXBUFSIZE; \
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zzenterANTLRf(f); \
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st; ++zzasp; \
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zzleaveANTLRf(f);
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#define ANTLRs(st, s) zzbufsize = ZZLEXBUFSIZE; \
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zzenterANTLRs(s); \
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st; ++zzasp; \
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zzleaveANTLRs(s);
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#ifdef LL_K
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#define zztext (&(zztextLA[zzlap][0]))
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#else
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#define zztext zzlextext
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#endif
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/* A r g u m e n t A c c e s s */
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#define zzaCur (zzaStack[zzasp])
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#define zzaRet (*zzaRetPtr)
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#define zzaArg(v,n) zzaStack[v-n]
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#define zzMakeAttr { zzNON_GUESS_MODE {zzOvfChk; --zzasp; zzcr_attr(&(zzaStack[zzasp]),LA(1),LATEXT(1));}}
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#ifdef zzdef0
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#define zzMake0 { zzOvfChk; --zzasp; zzdef0(&(zzaStack[zzasp]));}
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#else
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#define zzMake0 { zzOvfChk; --zzasp;}
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#endif
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#define zzaPush(_v) { zzOvfChk; zzaStack[--zzasp] = _v;}
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#ifndef zzd_attr
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#define zzREL(t) zzasp=(t); /* Restore state of stack */
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#else
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#define zzREL(t) for (; zzasp<(t); zzasp++) \
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{ zzd_attr(&(zzaStack[zzasp])); }
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#endif
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#define zzsetmatch(_es) \
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if ( !_zzsetmatch(_es, &zzBadText, &zzMissText, &zzMissTok, &zzBadTok, &zzMissSet) ) goto fail;
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#define zzsetmatch_wsig(_es, handler) \
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if ( !_zzsetmatch_wsig(_es) ) {_signal=MismatchedToken; goto handler;}
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extern int _zzsetmatch(SetWordType *, char **, char **, int *, int *, SetWordType **);
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extern int _zzsetmatch_wsig(SetWordType *);
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#define zzmatch(_t) \
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if ( !_zzmatch(_t, &zzBadText, &zzMissText, &zzMissTok, &zzBadTok, &zzMissSet) ) goto fail;
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#define zzmatch_wsig(_t,handler) \
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if ( !_zzmatch_wsig(_t) ) {_signal=MismatchedToken; goto handler;}
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extern int _zzmatch(int, const char **, const char **, int *, int *, SetWordType **);
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extern int _zzmatch_wsig(int);
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#define zzmatch_wdfltsig(_t,_f) \
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if ( !_zzmatch_wdfltsig(_t,_f) ) _signal=MismatchedToken;
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#define zzsetmatch_wdfltsig(tw,tt,wf) \
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if ( !_zzsetmatch_wdfltsig(tw,tt,wf) ) _signal=MismatchedToken;
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extern int _zzmatch_wdfltsig(int, SetWordType *);
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extern int _zzsetmatch_wdfltsig(SetWordType *tokensWanted,
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int tokenTypeOfSet,
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SetWordType *whatFollows);
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#ifdef GENAST
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#define zzRULE Attrib *zzaRetPtr = &(zzaStack[zzasp-1]); \
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SetWordType *zzMissSet=NULL; int zzMissTok=0; \
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int zzBadTok=0; const char *zzBadText=""; \
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int zzErrk=1; \
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const char *zzMissText=""; zzASTVars
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#else
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#define zzRULE Attrib *zzaRetPtr = &(zzaStack[zzasp-1]); \
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int zzBadTok=0; const char *zzBadText=""; \
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int zzErrk=1; \
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SetWordType *zzMissSet=NULL; int zzMissTok=0; const char *zzMissText=""
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#endif
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#ifdef GENAST
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#define zzBLOCK(i) int i = zzasp - 1; int zztsp = zzast_sp
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#define zzEXIT(i) zzREL(i); zzastREL; zzNON_GUESS_MODE { zzastPush(*_root); }
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#define zzLOOP(i) zzREL(i); zzastREL
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#else
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#define zzBLOCK(i) int i = zzasp - 1
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#define zzEXIT(i) zzREL(i)
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#define zzLOOP(i) zzREL(i)
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#endif
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#ifdef LL_K
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#ifdef DEMAND_LOOK
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#define LOOK(_k) {int i,stop=_k-(LL_K-zzdirty); for (i=1; i<=stop; i++) \
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zzCONSUME;}
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#define zzCONSUME {zzgettok(); zzdirty--; \
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zzlap = (zzlap+1)&(LL_K-1); \
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zzlextext = &(zztextLA[zzlap][0]);}
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#else
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#ifdef ZZINF_LOOK
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#define zzCONSUME {inf_zzgettok; \
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zzlap = (zzlap+1)&(LL_K-1); \
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zzlextext = &(zztextLA[zzlap][0]); \
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}
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#else
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#define zzCONSUME {zzgettok(); \
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zzlap = (zzlap+1)&(LL_K-1); \
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zzlextext = &(zztextLA[zzlap][0]);}
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#endif /* ZZINF_LOOK */
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#endif /* DEMAND_LOOK */
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#else /* LL_K */
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#ifdef DEMAND_LOOK
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#define LOOK(_k) if ( zzdirty) zzCONSUME;
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#ifdef ZZINF_LOOK
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#define zzCONSUME inf_zzgettok; zzdirty=0;
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#else
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#define zzCONSUME zzgettok(); zzdirty=0;
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#endif /* ZZINF_LOOK */
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#else /* DEMAND_LOOK */
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#ifdef ZZINF_LOOK
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#define zzCONSUME inf_zzgettok
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#else
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#define zzCONSUME zzgettok();
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#endif
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#endif /* DEMAND_LOOK */
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#endif /* LL_K */
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#ifdef LL_K
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#define NLA zztokenLA[zzlap&(LL_K-1)] /* --> next LA */
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#define NLATEXT zztextLA[zzlap&(LL_K-1)] /* --> next text of LA */
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#ifdef DEMAND_LOOK
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#define LA(i) zztokenLA[(zzlabase+(i)-1)&(LL_K-1)]
|
|
#define LATEXT(i) (&(zztextLA[(zzlabase+(i)-1)&(LL_K-1)][0]))
|
|
#else
|
|
#define LA(i) zztokenLA[(zzlap+(i)-1)&(LL_K-1)]
|
|
#define LATEXT(i) (&(zztextLA[(zzlap+(i)-1)&(LL_K-1)][0]))
|
|
#endif
|
|
#else
|
|
#define NLA zztoken
|
|
#define NLATEXT zztext
|
|
#define LA(i) zztoken
|
|
#define LATEXT(i) zztext
|
|
#endif
|
|
|
|
|
|
/* S t a n d a r d S i g n a l s */
|
|
|
|
#define NoSignal 0
|
|
#define MismatchedToken 1
|
|
#define NoViableAlt 2
|
|
#define NoSemViableAlt 3
|
|
|
|
|
|
/* F u n c t i o n T r a c i n g */
|
|
|
|
#ifndef zzTRACEIN
|
|
#define zzTRACEIN(r) fprintf(stderr, "enter rule \"%s\"\n", r);
|
|
#endif
|
|
#ifndef zzTRACEOUT
|
|
#define zzTRACEOUT(r) fprintf(stderr, "exit rule \"%s\"\n", r);
|
|
#endif
|
|
|
|
#ifdef ZZWCHAR_T
|
|
#define zzchar_t unsigned wchar_t
|
|
#else
|
|
#define zzchar_t unsigned char
|
|
#endif
|
|
|
|
/* E x t e r n D e f s */
|
|
|
|
extern Attrib zzempty_attr(void);
|
|
extern Attrib zzconstr_attr(int, char *);
|
|
extern void zzsyn(const char *, int, char *, SetWordType *, int, int, const char *);
|
|
extern int zzset_el(unsigned, SetWordType *);
|
|
extern int zzset_deg(SetWordType *);
|
|
extern void zzedecode(SetWordType *);
|
|
extern void zzFAIL(int k, ...);
|
|
extern void zzresynch(SetWordType *, SetWordType);
|
|
extern void zzsave_antlr_state(zzantlr_state *);
|
|
extern void zzrestore_antlr_state(zzantlr_state *);
|
|
extern void zzfill_inf_look(void);
|
|
#ifdef EXCEPTION_HANDLING
|
|
extern void zzdflthandlers(int, int *);
|
|
#endif
|
|
|
|
/* G l o b a l V a r i a b l e s */
|
|
|
|
/* Define a parser; user should do a "#parser myname" in their grammar file */
|
|
/*extern struct pccts_parser zzparser;*/
|
|
|
|
extern const char *zztokens[];
|
|
#ifdef LL_K
|
|
extern int zztokenLA[];
|
|
extern char zztextLA[][ZZLEXBUFSIZE];
|
|
extern int zzlap;
|
|
extern int zzlabase;
|
|
#else
|
|
extern int zztoken;
|
|
#endif
|
|
|
|
extern char zzStackOvfMsg[];
|
|
extern int zzasp;
|
|
extern Attrib zzaStack[];
|
|
#ifdef ZZINF_LOOK
|
|
extern int *zzinf_tokens;
|
|
extern char **zzinf_text;
|
|
extern char *zzinf_text_buffer;
|
|
extern int *zzinf_line;
|
|
extern int zzinf_labase;
|
|
extern int zzinf_last;
|
|
#endif
|
|
#ifdef DEMAND_LOOK
|
|
extern int zzdirty;
|
|
#endif
|
|
#ifdef ZZCAN_GUESS
|
|
extern int zzguessing;
|
|
extern zzjmp_buf zzguess_start;
|
|
#endif
|
|
|
|
/* Define global veriables that refer to values exported by the scanner.
|
|
* These declarations duplicate those in dlgdef.h, but are needed
|
|
* if ANTLR is not to generate a .dlg file (-gx); PS, this is a hack.
|
|
*/
|
|
extern zzchar_t *zzlextext; /* text of most recently matched token */
|
|
extern int zzbufsize; /* how long zzlextext is */
|
|
|
|
#endif
|