1 /****************************************************************
2 Copyright (C) Lucent Technologies 1997
3 All Rights Reserved
4
5 Permission to use, copy, modify, and distribute this software and
6 its documentation for any purpose and without fee is hereby
7 granted, provided that the above copyright notice appear in all
8 copies and that both that the copyright notice and this
9 permission notice and warranty disclaimer appear in supporting
10 documentation, and that the name Lucent Technologies or any of
11 its entities not be used in advertising or publicity pertaining
12 to distribution of the software without specific, written prior
13 permission.
14
15 LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
16 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
17 IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
18 SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
20 IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
21 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
22 THIS SOFTWARE.
23 ****************************************************************/
24
25 /*
26 * this program makes the table to link function names
27 * and type indices that is used by execute() in run.c.
28 * it finds the indices in ytab.h, produced by yacc.
29 */
30
31 #include <stdio.h>
32 #include <string.h>
33 #include <stdlib.h>
34 #include "awk.h"
35 #include "ytab.h"
36
37 struct xx
38 { int token;
39 const char *name;
40 const char *pname;
41 } proc[] = {
42 { PROGRAM, "program", NULL },
43 { BOR, "boolop", " || " },
44 { AND, "boolop", " && " },
45 { NOT, "boolop", " !" },
46 { NE, "relop", " != " },
47 { EQ, "relop", " == " },
48 { LE, "relop", " <= " },
49 { LT, "relop", " < " },
50 { GE, "relop", " >= " },
51 { GT, "relop", " > " },
52 { ARRAY, "array", NULL },
53 { INDIRECT, "indirect", "$(" },
54 { SUBSTR, "substr", "substr" },
55 { SSVSTR2STR, "owk_ssvstr2str", "ssvstr2str" }, /* ONGS Inc. */
56 { V2S, "owk_ssvstr2str", "v2s" }, /* ONGS Inc. */
57 { STR2SSVSTR, "owk_str2ssvstr", "str2ssvstr" }, /* ONGS Inc. */
58 { S2V, "owk_str2ssvstr", "s2v" }, /* ONGS Inc. */
59 { SUB, "sub", "sub" },
60 { GSUB, "gsub", "gsub" },
61 { INDEX, "sindex", "sindex" },
62 { SPRINTF, "awksprintf", "sprintf " },
63 { ADD, "arith", " + " },
64 { MINUS, "arith", " - " },
65 { MULT, "arith", " * " },
66 { DIVIDE, "arith", " / " },
67 { MOD, "arith", " % " },
68 { UMINUS, "arith", " -" },
69 { POWER, "arith", " **" },
70 { PREINCR, "incrdecr", "++" },
71 { POSTINCR, "incrdecr", "++" },
72 { PREDECR, "incrdecr", "--" },
73 { POSTDECR, "incrdecr", "--" },
74 { CAT, "cat", " " },
75 { PASTAT, "pastat", NULL },
76 { PASTAT2, "dopa2", NULL },
77 { MATCH, "matchop", " ~ " },
78 { NOTMATCH, "matchop", " !~ " },
79 { MATCHFCN, "matchop", "matchop" },
80 { INTEST, "intest", "intest" },
81 { PRINTF, "awkprintf", "printf" },
82 { PRINT, "printstat", "print" },
83 { CLOSE, "closefile", "closefile" },
84 { DELETE, "awkdelete", "awkdelete" },
85 { SPLIT, "split", "split" },
86 { ASSIGN, "assign", " = " },
87 { ADDEQ, "assign", " += " },
88 { SUBEQ, "assign", " -= " },
89 { MULTEQ, "assign", " *= " },
90 { DIVEQ, "assign", " /= " },
91 { MODEQ, "assign", " %= " },
92 { POWEQ, "assign", " ^= " },
93 { CONDEXPR, "condexpr", " ?: " },
94 { IF, "ifstat", "if(" },
95 { WHILE, "whilestat", "while(" },
96 { FOR, "forstat", "for(" },
97 { DO, "dostat", "do" },
98 { IN, "instat", "instat" },
99 { NEXT, "jump", "next" },
100 { NEXTFILE, "jump", "nextfile" },
101 { EXIT, "jump", "exit" },
102 { BREAK, "jump", "break" },
103 { CONTINUE, "jump", "continue" },
104 { RETURN, "jump", "ret" },
105 { BLTIN, "bltin", "bltin" },
106 { CALL, "call", "call" },
107 { ARG, "arg", "arg" },
108 { VARNF, "getnf", "NF" },
109 { GETLINE, "awkgetline", "getline" },
110 { 0, "", "" },
111 };
112
113 #define SIZE (LASTTOKEN - FIRSTTOKEN + 1)
114 const char *table[SIZE];
115 char *names[SIZE];
116
main(int argc,char * argv[])117 int main(int argc, char *argv[])
118 {
119 const struct xx *p;
120 int i, n, tok;
121 char c;
122 FILE *fp;
123 char buf[200], name[200], def[200];
124
125 printf("#include <stdio.h>\n");
126 printf("#include \"awk.h\"\n");
127 printf("#include \"ytab.h\"\n\n");
128 for (i = SIZE; --i >= 0; )
129 names[i] = "";
130
131 if ((fp = fopen("ytab.h", "r")) == NULL) {
132 fprintf(stderr, "maketab can't open ytab.h!\n");
133 exit(1);
134 }
135 printf("static char *printname[%d] = {\n", SIZE);
136 i = 0;
137 while (fgets(buf, sizeof buf, fp) != NULL) {
138 n = sscanf(buf, "%1c %s %s %d", &c, def, name, &tok);
139 if (c != '#' || (n != 4 && strcmp(def,"define") != 0)) /* not a valid #define */
140 continue;
141 if (tok < FIRSTTOKEN || tok > LASTTOKEN) {
142 /* fprintf(stderr, "maketab funny token %d %s ignored\n", tok, buf); */
143 continue;
144 }
145 names[tok-FIRSTTOKEN] = (char *) malloc(strlen(name)+1);
146 strcpy(names[tok-FIRSTTOKEN], name);
147 printf("\t(char *) \"%s\",\t/* %d */\n", name, tok);
148 i++;
149 }
150 printf("};\n\n");
151
152 for (p=proc; p->token!=0; p++)
153 table[p->token-FIRSTTOKEN] = p->name;
154 printf("\nCell *(*proctab[%d])(Node **, int) = {\n", SIZE);
155 for (i=0; i<SIZE; i++)
156 if (table[i]==NULL)
157 printf("\tnullproc,\t/* %s */\n", names[i]);
158 else
159 printf("\t%s,\t/* %s */\n", table[i], names[i]);
160 printf("};\n\n");
161
162 printf("char *tokname(int n)\n"); /* print a tokname() function */
163 printf("{\n");
164 printf(" static char buf[100];\n\n");
165 printf(" if (n < FIRSTTOKEN || n > LASTTOKEN) {\n");
166 printf(" sprintf(buf, \"token %%d\", n);\n");
167 printf(" return buf;\n");
168 printf(" }\n");
169 printf(" return printname[n-FIRSTTOKEN];\n");
170 printf("}\n");
171 return 0;
172 }
173