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| author | steve <steve@FreeBSD.org> | 1997-01-06 03:07:20 +0000 |
|---|---|---|
| committer | steve <steve@FreeBSD.org> | 1997-01-06 03:07:20 +0000 |
| commit | e4dc8d0d853cea8cea52791a2c9276603719801f (patch) | |
| tree | e27292372572c0a80ca648bc3ac8d56936017a5e /usr.bin/yacc | |
| parent | e881a25a8e456345a5f644361b46c1257f81d53c (diff) | |
| download | FreeBSD-src-e4dc8d0d853cea8cea52791a2c9276603719801f.zip FreeBSD-src-e4dc8d0d853cea8cea52791a2c9276603719801f.tar.gz | |
Merge Lite2 mods.
Diffstat (limited to 'usr.bin/yacc')
| -rw-r--r-- | usr.bin/yacc/skeleton.c | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/usr.bin/yacc/skeleton.c b/usr.bin/yacc/skeleton.c index a35981d..e7a4ff3 100644 --- a/usr.bin/yacc/skeleton.c +++ b/usr.bin/yacc/skeleton.c @@ -35,7 +35,7 @@ */ #ifndef lint -static char sccsid[] = "@(#)skeleton.c 5.7 (Berkeley) 5/24/93"; +static char sccsid[] = "@(#)skeleton.c 5.8 (Berkeley) 4/29/95"; #endif /* not lint */ #include "defs.h" @@ -57,6 +57,7 @@ char *banner[] = "#ifndef lint", "static char const yysccsid[] = \"@(#)yaccpar 1.9 (Berkeley) 02/21/93\";", "#endif", + "#include <stdlib.h>", "#define YYBYACC 1", "#define YYMAJOR 1", "#define YYMINOR 9", @@ -110,10 +111,11 @@ char *header[] = "#ifdef YYMAXDEPTH", "#define YYSTACKSIZE YYMAXDEPTH", "#else", - "#define YYSTACKSIZE 500", - "#define YYMAXDEPTH 500", + "#define YYSTACKSIZE 10000", + "#define YYMAXDEPTH 10000", "#endif", "#endif", + "#define YYINITSTACKSIZE 200", "int yydebug;", "int yynerrs;", "int yyerrflag;", @@ -122,15 +124,43 @@ char *header[] = "YYSTYPE *yyvsp;", "YYSTYPE yyval;", "YYSTYPE yylval;", - "short yyss[YYSTACKSIZE];", - "YYSTYPE yyvs[YYSTACKSIZE];", - "#define yystacksize YYSTACKSIZE", + "short *yyss;", + "short *yysslim;", + "YYSTYPE *yyvs;", + "int yystacksize;", 0 }; char *body[] = { + "/* allocate initial stack or double stack size, up to YYMAXDEPTH */", + "static int yygrowstack()", + "{", + " int newsize, i;", + " short *newss;", + " YYSTYPE *newvs;", + "", + " if ((newsize = yystacksize) == 0)", + " newsize = YYINITSTACKSIZE;", + " else if (newsize >= YYMAXDEPTH)", + " return -1;", + " else if ((newsize *= 2) > YYMAXDEPTH)", + " newsize = YYMAXDEPTH;", + " i = yyssp - yyss;", + " if ((newss = realloc(yyss, newsize * sizeof *newss)) == NULL)", + " return -1;", + " yyss = newss;", + " yyssp = newss + i;", + " if ((newvs = realloc(yyvs, newsize * sizeof *newvs)) == NULL)", + " return -1;", + " yyvs = newvs;", + " yyvsp = newvs + i;", + " yystacksize = newsize;", + " yysslim = yyss + newsize - 1;", + " return 0;", + "}", + "", "#define YYABORT goto yyabort", "#define YYREJECT goto yyabort", "#define YYACCEPT goto yyaccept", @@ -155,6 +185,7 @@ char *body[] = " yyerrflag = 0;", " yychar = (-1);", "", + " if (yyss == NULL && yygrowstack()) goto yyoverflow;", " yyssp = yyss;", " yyvsp = yyvs;", " *yyssp = yystate = 0;", @@ -183,7 +214,7 @@ char *body[] = " printf(\"%sdebug: state %d, shifting to state %d\\n\",", " YYPREFIX, yystate, yytable[yyn]);", "#endif", - " if (yyssp >= yyss + yystacksize - 1)", + " if (yyssp >= yysslim && yygrowstack())", " {", " goto yyoverflow;", " }", @@ -224,7 +255,7 @@ char *body[] = " printf(\"%sdebug: state %d, error recovery shifting\\", " to state %d\\n\", YYPREFIX, *yyssp, yytable[yyn]);", "#endif", - " if (yyssp >= yyss + yystacksize - 1)", + " if (yyssp >= yysslim && yygrowstack())", " {", " goto yyoverflow;", " }", @@ -321,7 +352,7 @@ char *trailer[] = " printf(\"%sdebug: after reduction, shifting from state %d \\", "to state %d\\n\", YYPREFIX, *yyssp, yystate);", "#endif", - " if (yyssp >= yyss + yystacksize - 1)", + " if (yyssp >= yysslim && yygrowstack())", " {", " goto yyoverflow;", " }", |
