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 { SUB, "sub", "sub" },
56 { GSUB, "gsub", "gsub" },
57 { INDEX, "sindex", "sindex" },
58 { SPRINTF, "awksprintf", "sprintf " },
59 { ADD, "arith", " + " },
60 { MINUS, "arith", " - " },
61 { MULT, "arith", " * " },
62 { DIVIDE, "arith", " / " },
63 { MOD, "arith", " % " },
64 { UMINUS, "arith", " -" },
65 { POWER, "arith", " **" },
66 { PREINCR, "incrdecr", "++" },
67 { POSTINCR, "incrdecr", "++" },
68 { PREDECR, "incrdecr", "--" },
69 { POSTDECR, "incrdecr", "--" },
70 { CAT, "cat", " " },
71 { PASTAT, "pastat", NULL },
72 { PASTAT2, "dopa2", NULL },
73 { MATCH, "matchop", " ~ " },
74 { NOTMATCH, "matchop", " !~ " },
75 { MATCHFCN, "matchop", "matchop" },
76 { INTEST, "intest", "intest" },
77 { PRINTF, "awkprintf", "printf" },
78 { PRINT, "printstat", "print" },
79 { CLOSE, "closefile", "closefile" },
80 { DELETE, "awkdelete", "awkdelete" },
81 { SPLIT, "split", "split" },
82 { ASSIGN, "assign", " = " },
83 { ADDEQ, "assign", " += " },
84 { SUBEQ, "assign", " -= " },
85 { MULTEQ, "assign", " *= " },
86 { DIVEQ, "assign", " /= " },
87 { MODEQ, "assign", " %= " },
88 { POWEQ, "assign", " ^= " },
89 { CONDEXPR, "condexpr", " ?: " },
90 { IF, "ifstat", "if(" },
91 { WHILE, "whilestat", "while(" },
92 { FOR, "forstat", "for(" },
93 { DO, "dostat", "do" },
94 { IN, "instat", "instat" },
95 { NEXT, "jump", "next" },
96 { NEXTFILE, "jump", "nextfile" },
97 { EXIT, "jump", "exit" },
98 { BREAK, "jump", "break" },
99 { CONTINUE, "jump", "continue" },
100 { RETURN, "jump", "ret" },
101 { BLTIN, "bltin", "bltin" },
102 { CALL, "call", "call" },
103 { ARG, "arg", "arg" },
104 { VARNF, "getnf", "NF" },
105 { GETLINE, "getline", "getline" },
106 { 0, "", "" },
107 };
108
109 #define SIZE (LASTTOKEN - FIRSTTOKEN + 1)
110 const char *table[SIZE];
111 char *names[SIZE];
112
main(int argc,char * argv[])113 int main(int argc, char *argv[])
114 {
115 const struct xx *p;
116 int i, n, tok;
117 char c;
118 FILE *fp;
119 const char* input;
120 char buf[200], name[200], def[200];
121
122 printf("#include <stdio.h>\n");
123 printf("#include \"awk.h\"\n");
124 printf("#include \"ytab.h\"\n\n");
125 for (i = SIZE; --i >= 0; )
126 names[i] = "";
127
128 input = "ytab.h";
129 if (argc > 1) {
130 input = argv[1];
131 if (!strcmp(input,"-"))
132 input = NULL;
133 }
134 if (input == NULL) {
135 fp = stdin;
136 } else {
137 if ((fp = fopen(input, "rt")) == NULL) {
138 fprintf(stderr, "maketab can't open %s!\n", input);
139 exit(1);
140 }
141 }
142 printf("static char *printname[%d] = {\n", SIZE);
143 i = 0;
144 while (fgets(buf, sizeof buf, fp) != NULL) {
145 n = sscanf(buf, "%1c %s %s %d", &c, def, name, &tok);
146 if (c != '#' || (n != 4 && strcmp(def,"define") != 0)) /* not a valid #define */
147 continue;
148 if (tok < FIRSTTOKEN || tok > LASTTOKEN) {
149 /* fprintf(stderr, "maketab funny token %d %s ignored\n", tok, buf); */
150 continue;
151 }
152 names[tok-FIRSTTOKEN] = (char *) malloc(strlen(name)+1);
153 strcpy(names[tok-FIRSTTOKEN], name);
154 printf("\t(char *) \"%s\",\t/* %d */\n", name, tok);
155 i++;
156 }
157 printf("};\n\n");
158
159 for (p=proc; p->token!=0; p++)
160 table[p->token-FIRSTTOKEN] = p->name;
161 printf("\nCell *(*proctab[%d])(Node **, int) = {\n", SIZE);
162 for (i=0; i<SIZE; i++)
163 if (table[i]==0)
164 printf("\tnullproc,\t/* %s */\n", names[i]);
165 else
166 printf("\t%s,\t/* %s */\n", table[i], names[i]);
167 printf("};\n\n");
168
169 printf("char *tokname(int n)\n"); /* print a tokname() function */
170 printf("{\n");
171 printf(" static char buf[100];\n\n");
172 printf(" if (n < FIRSTTOKEN || n > LASTTOKEN) {\n");
173 printf(" sprintf(buf, \"token %%d\", n);\n");
174 printf(" return buf;\n");
175 printf(" }\n");
176 printf(" return printname[n-FIRSTTOKEN];\n");
177 printf("}\n");
178 return 0;
179 }
180