xref: /original-bsd/old/lex/once.c (revision 6e30ad7c)
1 /*	once.c	4.2	89/05/10	*/
2 	/* because of external definitions, this code should occur only once */
3 # ifdef ASCII
4 int ctable[2*NCH] = {
5   0,  1,  2,  3,  4,  5,  6,  7,  8,  9,
6  10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
7  20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
8  30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
9  40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
10  50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
11  60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
12  70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
13  80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
14  90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
15 100,101,102,103,104,105,106,107,108,109,
16 110,111,112,113,114,115,116,117,118,119,
17 120,121,122,123,124,125,126,127};
18 # endif
19 # ifdef EBCDIC
20 int ctable[2*NCH] = {
21   0,  1,  2,  3,  4,  5,  6,  7,  8,  9,
22  10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
23  20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
24  30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
25  40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
26  50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
27  60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
28  70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
29  80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
30  90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
31 100,101,102,103,104,105,106,107,108,109,
32 110,111,112,113,114,115,116,117,118,119,
33 120,121,122,123,124,125,126,127,128,129,
34 130,131,132,133,134,135,136,137,138,139,
35 140,141,142,143,144,145,146,147,148,149,
36 150,151,152,153,154,155,156,157,158,159,
37 160,161,162,163,164,165,166,167,168,169,
38 170,171,172,173,174,175,176,177,178,179,
39 180,181,182,183,184,185,186,187,188,189,
40 190,191,192,193,194,195,196,197,198,199,
41 200,201,202,203,204,205,206,207,208,209,
42 210,211,212,213,214,215,216,217,218,219,
43 220,221,222,223,224,225,226,227,228,229,
44 230,231,232,233,234,235,236,237,238,239,
45 240,241,242,243,244,245,246,247,248,249,
46 250,251,252,253,254,255};
47 # endif
48 int ZCH = NCH;
49 FILE *fout = NULL, *errorf = {stdout};
50 int sect = DEFSECTION;
51 int prev = '\n';	/* previous input character */
52 int pres = '\n';	/* present input character */
53 int peek = '\n';	/* next input character */
54 char *pushptr = pushc;
55 char *slptr = slist;
56 
57 # if (unix || ibm)
58 char *cname = _PATH_NCFORM;
59 char *ratname = _PATH_NRFORM;
60 # endif
61 
62 # ifdef gcos
63 char *cname = "pounce/lexcform";
64 char *ratname = "pounce/lexrform";
65 # endif
66 int ccount = 1;
67 int casecount = 1;
68 int aptr = 1;
69 int nstates = NSTATES, maxpos = MAXPOS;
70 int treesize = TREESIZE, ntrans = NTRANS;
71 int yytop;
72 int outsize = NOUTPUT;
73 int sptr = 1;
74 int optim = TRUE;
75 int report = 2;
76 int debug;		/* 1 = on */
77 int charc;
78 int sargc;
79 char **sargv;
80 char buf[520];
81 int ratfor;		/* 1 = ratfor, 0 = C */
82 int yyline;		/* line number of file */
83 int eof;
84 int lgatflg;
85 int divflg;
86 int funcflag;
87 int pflag;
88 int chset;	/* 1 = char set modified */
89 FILE *fin, *fother;
90 int fptr;
91 int *name;
92 int *left;
93 int *right;
94 int *parent;
95 char *nullstr;
96 int tptr;
97 char pushc[TOKENSIZE];
98 char slist[STARTSIZE];
99 char **def, **subs, *dchar;
100 char **sname, *schar;
101 char *ccl;
102 char *ccptr;
103 char *dp, *sp;
104 int dptr;
105 char *bptr;		/* store input position */
106 char *tmpstat;
107 int count;
108 int **foll;
109 int *nxtpos;
110 int *positions;
111 int *gotof;
112 int *nexts;
113 char *nchar;
114 int **state;
115 int *sfall;		/* fallback state num */
116 char *cpackflg;		/* true if state has been character packed */
117 int *atable;
118 int nptr;
119 char symbol[NCH];
120 char cindex[NCH];
121 int xstate;
122 int stnum;
123 char match[NCH];
124 char extra[NACTIONS];
125 char *pchar, *pcptr;
126 int pchlen = TOKENSIZE;
127  long rcount;
128 int *verify, *advance, *stoff;
129 int scon;
130 char *psave;
131 int buserr(), segviol();
132