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- /*
- * bits.c -- manage creation and output of bit sets used by the parser.
- *
- * $Id: bits.c,v 1.9 1994/08/29 20:16:14 parrt Exp parrt $
- * $Revision: 1.9 $
- *
- * SOFTWARE RIGHTS
- *
- * We reserve no LEGAL rights to the Purdue Compiler Construction Tool
- * Set (PCCTS) -- PCCTS is in the public domain. An individual or
- * company may do whatever they wish with source code distributed with
- * PCCTS or the code generated by PCCTS, including the incorporation of
- * PCCTS, or its output, into commerical software.
- *
- * We encourage users to develop software with PCCTS. However, we do ask
- * that credit is given to us for developing PCCTS. By "credit",
- * we mean that if you incorporate our source code into one of your
- * programs (commercial product, research project, or otherwise) that you
- * acknowledge this fact somewhere in the documentation, research report,
- * etc... If you like PCCTS and have developed a nice tool with the
- * output, please mention that you developed it using PCCTS. In
- * addition, we ask that this header remain intact in our source code.
- * As long as these guidelines are kept, we expect to continue enhancing
- * this system and expect to make other tools available as they are
- * completed.
- *
- * ANTLR 1.23
- * Terence Parr
- * Parr Research Corporation
- * with Purdue University and AHPCRC, University of Minnesota
- * 1989-1994
- */
- #include <stdio.h>
- #include <ctype.h>
- #ifdef __cplusplus
- #ifndef __STDC__
- #define __STDC__
- #endif
- #endif
- #include "set.h"
- #include "syn.h"
- #include "hash.h"
- #include "generic.h"
- #include "dlgdef.h"
-
- /* char is only thing that is pretty much always known == 8 bits
- * This allows output of antlr (set stuff, anyway) to be androgynous (portable)
- */
- typedef unsigned char SetWordType;
- #define BitsPerByte 8
- #define BitsPerWord BitsPerByte*sizeof(SetWordType)
-
- static SetWordType *setwd = NULL;
- int setnum = -1;
- int wordnum = 0;
-
- int esetnum = 0;
-
- /* Used to convert native wordsize, which ANTLR uses (via set.c) to manipulate sets,
- to bytes that are most portable size-wise.
- */
- void
- #ifdef __STDC__
- DumpIntAsChars( FILE *f, char *format, unsigned wd )
- #else
- DumpIntAsChars( f, format, wd )
- FILE *f;
- char *format;
- unsigned wd;
- #endif
- {
- int i;
- /* uses max of 32 bit unsigned integer for the moment */
- static unsigned long byte_mask[sizeof(unsigned long)] =
- { 0xFF, 0xFF00, 0xFF0000, 0xFF000000 };
- /* 0xFF00000000, 0xFF0000000000, 0xFF000000000000, 0xFF00000000000000 };*/
-
- /* for each byte in the word */
- for (i=0; i<sizeof(unsigned); i++)
- {
- /* mask out the ith byte and shift down to the first 8 bits */
- fprintf(f, format, (wd&byte_mask[i])>>(i*BitsPerByte));
- if ( i<sizeof(unsigned)-1) fprintf(f, ",");
- }
- }
-
- /* Create a new setwd (ignoring [Ep] token on end) */
- void
- #ifdef __STDC__
- NewSetWd( void )
- #else
- NewSetWd( )
- #endif
- {
- SetWordType *p;
-
- if ( setwd == NULL )
- {
- setwd = (SetWordType *) calloc(TokenNum, sizeof(SetWordType));
- require(setwd!=NULL, "NewSetWd: cannot alloc set wd\n");
- }
- for (p = setwd; p<&(setwd[TokenNum]); p++) {*p=0;}
- wordnum++;
- }
-
- void
- #ifdef __STDC__
- DumpSetWd( void )
- #else
- DumpSetWd( )
- #endif
- {
- if ( GenCC ) DumpSetWdForCC();
- else DumpSetWdForC();
- }
-
- /* Dump the current setwd to ErrFile. 0..MaxTokenVal */
- void
- #ifdef __STDC__
- DumpSetWdForC( void )
- #else
- DumpSetWdForC( )
- #endif
- {
- int i,c=1;
-
- if ( setwd==NULL ) return;
- if ( !GenCC ) fprintf(DefFile, "extern SetWordType setwd%d[];\n", wordnum);
- fprintf(ErrFile,
- "SetWordType setwd%d[%d] = {", wordnum, TokenNum-1);
- for (i=0; i<TokenNum-1; i++)
- {
- DAWDLE;
- if ( i!=0 ) fprintf(ErrFile, ",");
- if ( c == 8 ) {fprintf(ErrFile, "\n\t"); c=1;} else c++;
- fprintf(ErrFile, "0x%x", setwd[i]);
- }
- fprintf(ErrFile, "};\n");
- }
-
- /* Dump the current setwd to Parser.C file. 0..MaxTokenVal;
- * Only used if -CC on.
- */
- void
- #ifdef __STDC__
- DumpSetWdForCC( void )
- #else
- DumpSetWdForCC( )
- #endif
- {
- int i,c=1;
-
- if ( setwd==NULL ) return;
- fprintf(Parser_h, "\tstatic SetWordType setwd%d[%d];\n", wordnum, TokenNum-1);
- fprintf(Parser_c,
- "SetWordType %s::setwd%d[%d] = {", CurrentClassName, wordnum,
- TokenNum-1);
- for (i=0; i<TokenNum-1; i++)
- {
- DAWDLE;
- if ( i!=0 ) fprintf(Parser_c, ",");
- if ( c == 8 ) {fprintf(Parser_c, "\n\t"); c=1;} else c++;
- fprintf(Parser_c, "0x%x", setwd[i]);
- }
- fprintf(Parser_c, "};\n");
- }
-
- /* Make a new set. Dump old setwd and create new setwd if current setwd is full */
- void
- #ifdef __STDC__
- NewSet( void )
- #else
- NewSet( )
- #endif
- {
- setnum++;
- if ( setnum==BitsPerWord ) /* is current setwd full? */
- {
- DumpSetWd(); NewSetWd(); setnum = 0;
- }
- }
-
- /* s is a set of tokens. Turn on bit at each token position in set 'setnum' */
- void
- #ifdef __STDC__
- FillSet( set s )
- #else
- FillSet( s )
- set s;
- #endif
- {
- SetWordType mask=(((unsigned)1)<<setnum);
- unsigned int e;
-
- while ( !set_nil(s) )
- {
- e = set_int(s);
- set_rm(e, s);
- setwd[e] |= mask;
- }
- }
-
- /* E r r o r C l a s s S t u f f */
-
- /* compute the FIRST of a rule for the error class stuff */
- static set
- #ifdef __STDC__
- Efirst( char *rule, ECnode *eclass )
- #else
- Efirst( rule, eclass )
- char *rule;
- ECnode *eclass;
- #endif
- {
- set rk, a;
- Junction *r;
- RuleEntry *q = (RuleEntry *) hash_get(Rname, rule);
-
- if ( q == NULL )
- {
- warnNoFL(eMsg2("undefined rule '%s' referenced in errclass '%s'; ignored",
- rule, TokenString(eclass->tok)));
- return empty;
- }
- r = RulePtr[q->rulenum];
- r->end->halt = TRUE; /* don't let reach fall off end of rule here */
- rk = empty;
- REACH(r, 1, &rk, a);
- r->end->halt = FALSE;
- return a;
- }
-
- /*
- * scan the list of tokens/eclasses/nonterminals filling the new eclass
- * with the set described by the list. Note that an eclass can be
- * quoted to allow spaces etc... However, an eclass must not conflict
- * with a reg expr found elsewhere. The reg expr will be taken over
- * the eclass name.
- */
- static void
- #ifdef __STDC__
- doEclass( char *eclass )
- #else
- doEclass( eclass )
- char *eclass;
- #endif
- {
- TermEntry *q;
- ECnode *p;
- ListNode *e;
- unsigned int t;
- unsigned deg=0;
- set a;
- require(eclass!=NULL, "doEclass: NULL eset");
-
- p = (ECnode *) eclass;
- lexmode(p->lexclass); /* switch to lexclass where errclass is defined */
- p->eset = empty;
- for (e = (p->elist)->next; e!=NULL; e=e->next)
- {
- if ( islower( *((char *)e->elem) ) ) /* is it a rule ref? (alias FIRST request) */
- {
- a = Efirst((char *)e->elem, p);
- set_orin(&p->eset, a);
- deg += set_deg(a);
- set_free( a );
- continue;
- }
- else if ( *((char *)e->elem)=='"' )
- {
- t = 0;
- q = (TermEntry *) hash_get(Texpr, (char *) e->elem);
- if ( q == NULL )
- {
- /* if quoted and not an expr look for eclass name */
- q = (TermEntry *) hash_get(Tname, *((char **)&(e->elem))=StripQuotes((char *)e->elem));
- if ( q != NULL ) t = q->token;
- }
- else t = q->token;
- }
- else /* labelled token/eclass/tokclass */
- {
- q = (TermEntry *) hash_get(Tname, (char *)e->elem);
- if ( q != NULL )
- {
- if ( strcmp((char *)e->elem, TokenString(p->tok))==0 )
- {
- warnNoFL(eMsg1("self-referential error class '%s'; ignored",
- (char *)e->elem));
- continue;
- }
- else
- t = q->token;
- }
- else t=0;
- }
- if ( t!=0 )
- {
- set_orel(t, &p->eset);
- deg++;
- }
- else warnNoFL(eMsg2("undefined token '%s' referenced in errclass '%s'; ignored",
- (char *)e->elem, TokenString(p->tok)));
- }
- p->setdeg = deg;
- }
-
- void
- #ifdef __STDC__
- ComputeErrorSets( void )
- #else
- ComputeErrorSets( )
- #endif
- {
- #ifdef __cplusplus
- list_apply(eclasses, (void (*)(void *)) doEclass);
- #else
- #ifdef __STDC__
- list_apply(eclasses, (void (*)(void *)) doEclass);
- #else
- list_apply(eclasses, doEclass);
- #endif
- #endif
- }
-
- void
- #ifdef __STDC__
- ComputeTokSets( void )
- #else
- ComputeTokSets( )
- #endif
- {
- ListNode *t, *e = NULL;
- int something_changed;
- TCnode *p;
- TermEntry *q;
-
- if ( tclasses == NULL ) return;
-
- /* turn lists of token/tokclass references into sets */
- for (t = tclasses->next; t!=NULL; t=t->next)
- {
- p = (TCnode *) t->elem;
- lexmode(p->lexclass); /* switch to lexclass where tokclass is defined */
- p->tset = empty;
-
- /* instantiate all tokens/token_classes into the tset */
- for (e = (p->tlist)->next; e!=NULL; e=e->next)
- {
- char *tokstr;
- tokstr = (char *)e->elem;
- if ( *tokstr == '"' ) q = (TermEntry *) hash_get(Texpr, tokstr);
- else q = (TermEntry *) hash_get(Tname, tokstr);
- require(q!=NULL, "ComputeTokSets: no token def");
- set_orel(q->token, &p->tset);
- }
- }
-
- /* Go thru list of tokclasses again looking for tokclasses in sets */
- again:
- something_changed = 0;
- for (t = tclasses->next; t!=NULL; t=t->next)
- {
- set tcl;
- p = (TCnode *) t->elem;
- tcl = set_and(p->tset, imag_tokens);
- if ( !set_nil(tcl) )
- {
- int tk;
- /* replace refs to tokclasses with the associated set of tokens */
- something_changed = 1;
- while ( !set_nil(tcl) )
- {
- tk = set_int(tcl); /* grab one of the tok class refs */
- set_rm(tk, tcl);
- if ( p->tok != tk ) /* tokclass ref to yourself? */
- {
- q = (TermEntry *) hash_get(Tname, TokenString(tk));
- require(q!=NULL, "#tokclass not in hash table");
- set_orin(&p->tset, q->tclass->tset);
- }
- set_rm(tk, p->tset); /* remove ref that we replaced */
- }
- }
- set_free(tcl);
- }
- if ( something_changed ) goto again;
- }
-
- /* replace a subset of an error set with an error class name if a subset is found
- * repeat process until no replacements made
- */
- void
- #ifdef __STDC__
- SubstErrorClass( set *f )
- #else
- SubstErrorClass( f )
- set *f;
- #endif
- {
- int max, done = 0;
- ListNode *p;
- ECnode *ec, *maxclass = NULL;
- set a;
- require(f!=NULL, "SubstErrorClass: NULL eset");
-
- if ( eclasses == NULL ) return;
- while ( !done )
- {
- max = 0;
- maxclass = NULL;
- for (p=eclasses->next; p!=NULL; p=p->next) /* chk all error classes */
- {
- ec = (ECnode *) p->elem;
- if ( ec->setdeg > max )
- {
- if ( set_sub(ec->eset, *f) || set_equ(ec->eset, *f) )
- {maxclass = ec; max=ec->setdeg;}
- }
- }
- if ( maxclass != NULL ) /* if subset found, replace with token */
- {
- a = set_dif(*f, maxclass->eset);
- set_orel((unsigned)maxclass->tok, &a);
- set_free(*f);
- *f = a;
- }
- else done = 1;
- }
- }
-
- int
- #ifdef __STDC__
- DefErrSet( set *f, int subst )
- #else
- DefErrSet( f, subst )
- set *f;
- int subst; /* should be substitute error classes? */
- #endif
- {
- if ( GenCC ) return DefErrSetForCC( f, subst );
- else return DefErrSetForC( f, subst );
- }
-
- /* Define a new error set. WARNING...set-implementation dependent.
- */
- int
- #ifdef __STDC__
- DefErrSetForC( set *f, int subst )
- #else
- DefErrSetForC( f, subst )
- set *f;
- int subst; /* should be substitute error classes? */
- #endif
- {
- unsigned *p, *endp;
- int e=1;
- require(!set_nil(*f), "DefErrSet: nil set to dump?");
-
- if ( subst ) SubstErrorClass(f);
- p = f->setword;
- endp = &(f->setword[NumWords(TokenNum-1)]);
- esetnum++;
- if ( !GenCC ) fprintf(DefFile, "extern SetWordType zzerr%d[];\n", esetnum);
- fprintf(ErrFile, "SetWordType zzerr%d[%d] = {", esetnum, NumWords(TokenNum-1)*sizeof(unsigned));
- while ( p < endp )
- {
- if ( e > 1 ) fprintf(ErrFile, ", ");
- DumpIntAsChars(ErrFile, "0x%x", *p++);
- if ( e == 3 )
- {
- DAWDLE;
- if ( p < endp ) fprintf(ErrFile, ",");
- fprintf(ErrFile, "\n\t");
- e=1;
- }
- else e++;
- }
- fprintf(ErrFile, "};\n");
-
- return esetnum;
- }
-
- /* Define a new error set. WARNING...set-implementation dependent;
- * Only used when -CC on.
- */
- int
- #ifdef __STDC__
- DefErrSetForCC( set *f, int subst )
- #else
- DefErrSetForCC( f, subst )
- set *f;
- int subst; /* should be substitute error classes? */
- #endif
- {
- unsigned *p, *endp;
- int e=1;
- require(!set_nil(*f), "DefErrSet: nil set to dump?");
-
- if ( subst ) SubstErrorClass(f);
- p = f->setword;
- endp = &(f->setword[NumWords(TokenNum-1)]);
- esetnum++;
- fprintf(Parser_h, "\tstatic SetWordType err%d[%d];\n", esetnum,
- NumWords(TokenNum-1)*sizeof(unsigned));
- fprintf(Parser_c, "SetWordType %s::err%d[%d] = {", CurrentClassName, esetnum, NumWords(TokenNum-1)*sizeof(unsigned));
- while ( p < endp )
- {
- if ( e > 1 ) fprintf(Parser_c, ", ");
- DumpIntAsChars(Parser_c, "0x%x", *p++);
- if ( e == 3 )
- {
- if ( p < endp ) fprintf(Parser_c, ",");
- fprintf(Parser_c, "\n\t");
- e=1;
- }
- else e++;
- }
- fprintf(Parser_c, "};\n");
-
- return esetnum;
- }
-
- void
- #ifdef __STDC__
- GenParser_c_Hdr(void)
- #else
- GenParser_c_Hdr()
- #endif
- {
- int i,j;
-
- fprintf(Parser_c, "/*\n");
- fprintf(Parser_c, " * %s: P a r s e r S u p p o r t\n", CurrentClassName);
- fprintf(Parser_c, " *\n");
- fprintf(Parser_c, " * Generated from:");
- for (i=0; i<NumFiles; i++) fprintf(Parser_c, " %s", FileStr[i]);
- fprintf(Parser_c, "\n");
- fprintf(Parser_c, " *\n");
- fprintf(Parser_c, " * Terence Parr, Will Cohen, and Hank Dietz: 1989-1994\n");
- fprintf(Parser_c, " * Purdue University Electrical Engineering\n");
- fprintf(Parser_c, " * With AHPCRC, University of Minnesota\n");
- fprintf(Parser_c, " * ANTLR Version %s\n", Version);
- fprintf(Parser_c, " */\n\n");
- fprintf(Parser_c, "#include <stdio.h>\n");
- fprintf(Parser_c, "#define ANTLR_VERSION %s\n", VersionDef);
- if ( UserTokenDefsFile != NULL )
- fprintf(Parser_c, "#include %s\n", UserTokenDefsFile);
- else
- fprintf(Parser_c, "#include \"%s\"\n", DefFileName);
-
- fprintf(Parser_c, "#include \"%s.h\"\n", CurrentClassName);
-
- /* Dump a Parser::tokens for each automaton */
- fprintf(Parser_c, "\nANTLRChar *%s::_token_tbl[]={\n", CurrentClassName);
- fprintf(Parser_c, "\t/* 00 */\t\"Invalid\"");
-
- for (i=1; i<TokenNum-1; i++)
- {
- DAWDLE;
- if ( i == EpToken ) continue;
- /* remapped to invalid token? */
- if ( TokenInd!=NULL && TokenInd[i]>=LastTokenCounted )
- {
- fprintf(Parser_c, ",\n\t/* %02d */\t\"invalid\"", i);
- continue;
- }
- if ( TokenString(i) != NULL )
- fprintf(Parser_c, ",\n\t/* %02d */\t\"%s\"", i, TokenString(i));
- else
- {
- /* look in all lexclasses for the reg expr */
- for (j=0; j<NumLexClasses; j++)
- {
- lexmode(j);
- if ( ExprString(i) != NULL )
- {
- fprintf(Parser_c, ",\n\t/* %02d */\t", i);
- dumpExpr(Parser_c, ExprString(i));
- break;
- }
- }
- if ( j>=NumLexClasses )
- {
- if ( UserDefdTokens )
- {
- fprintf(Parser_c, ",\n\t/* %02d */\t\"\"", i);
- }
- else
- fatal_internal(eMsgd("No label or expr for token %d",i));
- }
- }
- }
- fprintf(Parser_c, "\n};\n");
-
- /* Build constructors */
- fprintf(Parser_c, "\n%s::", CurrentClassName);
- fprintf(Parser_c, "%s(ANTLRTokenBuffer *input) : ANTLRParser(input,%d,%d,%d,%d)\n",
- CurrentClassName,
- OutputLL_k,
- FoundGuessBlk,
- DemandLookahead,
- NumWords(TokenNum-1)*sizeof(unsigned));
- fprintf(Parser_c, "{\n");
- fprintf(Parser_c, "\ttoken_tbl = _token_tbl;\n");
- fprintf(Parser_c, "}\n\n");
- }
-
- void
- #ifdef __STDC__
- GenParser_h_Hdr(void)
- #else
- GenParser_h_Hdr()
- #endif
- {
- int i;
-
- fprintf(Parser_h, "/*\n");
- fprintf(Parser_h, " * %s: P a r s e r H e a d e r \n", CurrentClassName);
- fprintf(Parser_h, " *\n");
- fprintf(Parser_h, " * Generated from:");
- for (i=0; i<NumFiles; i++) fprintf(Parser_h, " %s", FileStr[i]);
- fprintf(Parser_h, "\n");
- fprintf(Parser_h, " *\n");
- fprintf(Parser_h, " * Terence Parr, Will Cohen, and Hank Dietz: 1989-1994\n");
- fprintf(Parser_h, " * Purdue University Electrical Engineering\n");
- fprintf(Parser_h, " * With AHPCRC, University of Minnesota\n");
- fprintf(Parser_h, " * ANTLR Version %s\n", Version);
- fprintf(Parser_h, " */\n\n");
- if ( GenAST ) fprintf(Parser_h, "class ASTBase;\n");
- fprintf(Parser_h, "#include \"%s\"\n\n", APARSER_H);
-
- if ( HdrAction != NULL ) dumpAction( HdrAction, Parser_h, 0, -1, 0, 1);
-
- fprintf(Parser_h, "class %s : public ANTLRParser {\n", CurrentClassName);
- fprintf(Parser_h, "protected:\n");
- fprintf(Parser_h, "\tstatic ANTLRChar *_token_tbl[];\n");
- fprintf(Parser_h, "private:\n");
- }
-
- /* Currently, this is only used in !GenCC mode */
- void
- #ifdef __STDC__
- GenErrHdr( void )
- #else
- GenErrHdr( )
- #endif
- {
- int i, j;
-
- fprintf(ErrFile, "/*\n");
- fprintf(ErrFile, " * A n t l r S e t s / E r r o r F i l e H e a d e r\n");
- fprintf(ErrFile, " *\n");
- fprintf(ErrFile, " * Generated from:");
- for (i=0; i<NumFiles; i++) fprintf(ErrFile, " %s", FileStr[i]);
- fprintf(ErrFile, "\n");
- fprintf(ErrFile, " *\n");
- fprintf(ErrFile, " * Terence Parr, Will Cohen, and Hank Dietz: 1989-1994\n");
- fprintf(ErrFile, " * Purdue University Electrical Engineering\n");
- fprintf(ErrFile, " * With AHPCRC, University of Minnesota\n");
- fprintf(ErrFile, " * ANTLR Version %s\n", Version);
- fprintf(ErrFile, " */\n\n");
- fprintf(ErrFile, "#include <stdio.h>\n");
- fprintf(ErrFile, "#define ANTLR_VERSION %s\n", VersionDef);
- if ( strcmp(ParserName, DefaultParserName)!=0 )
- fprintf(ErrFile, "#define %s %s\n", DefaultParserName, ParserName);
- if ( strcmp(ParserName, DefaultParserName)!=0 )
- fprintf(ErrFile, "#include \"%s\"\n", RemapFileName);
- if ( HdrAction != NULL ) dumpAction( HdrAction, ErrFile, 0, -1, 0, 1 );
- if ( FoundGuessBlk )
- {
- fprintf(ErrFile, "#define ZZCAN_GUESS\n");
- fprintf(ErrFile, "#include <setjmp.h>\n");
- }
-
- if ( OutputLL_k > 1 ) fprintf(ErrFile, "#define LL_K %d\n", OutputLL_k);
- if ( LexGen ) fprintf(ErrFile, "#define zzEOF_TOKEN %d\n", (TokenInd!=NULL?TokenInd[EofToken]:EofToken));
- fprintf(ErrFile, "#define zzSET_SIZE %d\n", NumWords(TokenNum-1)*sizeof(unsigned));
- if ( DemandLookahead ) fprintf(ErrFile, "#define DEMAND_LOOK\n");
- fprintf(ErrFile, "#include \"antlr.h\"\n");
- if ( GenAST ) fprintf(ErrFile, "#include \"ast.h\"\n");
-
- if ( UserDefdTokens ) fprintf(ErrFile, "#include %s\n", UserTokenDefsFile);
- /* still need this one as it has the func prototypes */
- fprintf(ErrFile, "#include \"%s\"\n", DefFileName);
- fprintf(ErrFile, "#include \"dlgdef.h\"\n");
- fprintf(ErrFile, "#include \"err.h\"\n\n");
-
- /* Dump a zztokens for each automaton */
- if ( strcmp(ParserName, DefaultParserName)!=0 )
- {
- fprintf(ErrFile, "ANTLRChar *%s_zztokens[%d]={\n", ParserName, TokenNum-1);
- }
- else
- {
- fprintf(ErrFile, "ANTLRChar *zztokens[%d]={\n", TokenNum-1);
- }
- fprintf(ErrFile, "\t/* 00 */\t\"Invalid\"");
- for (i=1; i<TokenNum-1; i++)
- {
- DAWDLE;
- if ( i == EpToken ) continue;
- /* remapped to invalid token? */
- if ( TokenInd!=NULL && TokenInd[i]>=LastTokenCounted )
- {
- fprintf(ErrFile, ",\n\t/* %02d */\t\"invalid\"", i);
- continue;
- }
- if ( TokenString(i) != NULL )
- fprintf(ErrFile, ",\n\t/* %02d */\t\"%s\"", i, TokenString(i));
- else
- {
- /* look in all lexclasses for the reg expr */
- for (j=0; j<NumLexClasses; j++)
- {
- lexmode(j);
- if ( ExprString(i) != NULL )
- {
- fprintf(ErrFile, ",\n\t/* %02d */\t", i);
- dumpExpr(ErrFile, ExprString(i));
- break;
- }
- }
- if ( j>=NumLexClasses )
- {
- if ( UserDefdTokens )
- {
- fprintf(ErrFile, ",\n\t/* %02d */\t\"\"", i);
- }
- else
- fatal_internal(eMsgd("No label or expr for token %d",i));
- }
- }
- }
- fprintf(ErrFile, "\n};\n");
- }
-
- void
- #ifdef __STDC__
- dumpExpr( FILE *f, char *e )
- #else
- dumpExpr( f, e )
- FILE *f;
- char *e;
- #endif
- {
- while ( *e!='\0' )
- {
- if ( *e=='\\' && *(e+1)=='\\' )
- {putc('\\', f); putc('\\', f); e+=2;}
- else if ( *e=='\\' && *(e+1)=='"' )
- {putc('\\', f); putc('"', f); e+=2;}
- else if ( *e=='\\' ) {putc('\\', f); putc('\\', f); e++;}
- else {putc(*e, f); e++;}
- }
- }
-