1/****************************************************************
2Copyright (C) Lucent Technologies 1997
3All Rights Reserved
4
5Permission to use, copy, modify, and distribute this software and
6its documentation for any purpose and without fee is hereby
7granted, provided that the above copyright notice appear in all
8copies and that both that the copyright notice and this
9permission notice and warranty disclaimer appear in supporting
10documentation, and that the name Lucent Technologies or any of
11its entities not be used in advertising or publicity pertaining
12to distribution of the software without specific, written prior
13permission.
14
15LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
16INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
17IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
18SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
20IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
21ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
22THIS 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
37struct 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	{ UPLUS, "arith", " +" },
66	{ POWER, "arith", " **" },
67	{ PREINCR, "incrdecr", "++" },
68	{ POSTINCR, "incrdecr", "++" },
69	{ PREDECR, "incrdecr", "--" },
70	{ POSTDECR, "incrdecr", "--" },
71	{ CAT, "cat", " " },
72	{ PASTAT, "pastat", NULL },
73	{ PASTAT2, "dopa2", NULL },
74	{ MATCH, "matchop", " ~ " },
75	{ NOTMATCH, "matchop", " !~ " },
76	{ MATCHFCN, "matchop", "matchop" },
77	{ INTEST, "intest", "intest" },
78	{ PRINTF, "awkprintf", "printf" },
79	{ PRINT, "printstat", "print" },
80	{ CLOSE, "closefile", "closefile" },
81	{ DELETE, "awkdelete", "awkdelete" },
82	{ SPLIT, "split", "split" },
83	{ ASSIGN, "assign", " = " },
84	{ ADDEQ, "assign", " += " },
85	{ SUBEQ, "assign", " -= " },
86	{ MULTEQ, "assign", " *= " },
87	{ DIVEQ, "assign", " /= " },
88	{ MODEQ, "assign", " %= " },
89	{ POWEQ, "assign", " ^= " },
90	{ CONDEXPR, "condexpr", " ?: " },
91	{ IF, "ifstat", "if(" },
92	{ WHILE, "whilestat", "while(" },
93	{ FOR, "forstat", "for(" },
94	{ DO, "dostat", "do" },
95	{ IN, "instat", "instat" },
96	{ NEXT, "jump", "next" },
97	{ NEXTFILE, "jump", "nextfile" },
98	{ EXIT, "jump", "exit" },
99	{ BREAK, "jump", "break" },
100	{ CONTINUE, "jump", "continue" },
101	{ RETURN, "jump", "ret" },
102	{ BLTIN, "bltin", "bltin" },
103	{ CALL, "call", "call" },
104	{ ARG, "arg", "arg" },
105	{ VARNF, "getnf", "NF" },
106	{ GETLINE, "awkgetline", "getline" },
107	{ 0, "", "" },
108};
109
110#define SIZE	(LASTTOKEN - FIRSTTOKEN + 1)
111const char *table[SIZE];
112char *names[SIZE];
113
114int main(int argc, char *argv[])
115{
116	const struct xx *p;
117	int i, n, tok;
118	char c;
119	FILE *fp;
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	if (argc != 2) {
129		fprintf(stderr, "usage: maketab YTAB_H\n");
130		exit(1);
131	}
132	if ((fp = fopen(argv[1], "r")) == NULL) {
133		fprintf(stderr, "maketab can't open %s!\n", argv[1]);
134		exit(1);
135	}
136	printf("static char *printname[%d] = {\n", SIZE);
137	i = 0;
138	while (fgets(buf, sizeof buf, fp) != NULL) {
139		n = sscanf(buf, "%1c %s %s %d", &c, def, name, &tok);
140		if (c != '#' || (n != 4 && strcmp(def,"define") != 0))	/* not a valid #define */
141			continue;
142		if (strcmp(name, "YYSTYPE_IS_DECLARED") == 0)
143			continue;
144		if (tok < FIRSTTOKEN || tok > LASTTOKEN) {
145			/* fprintf(stderr, "maketab funny token %d %s ignored\n", tok, buf); */
146			continue;
147		}
148		names[tok-FIRSTTOKEN] = (char *) malloc(strlen(name)+1);
149		strcpy(names[tok-FIRSTTOKEN], name);
150		printf("\t(char *) \"%s\",\t/* %d */\n", name, tok);
151		i++;
152	}
153	printf("};\n\n");
154
155	for (p=proc; p->token!=0; p++)
156		table[p->token-FIRSTTOKEN] = p->name;
157	printf("\nCell *(*proctab[%d])(Node **, int) = {\n", SIZE);
158	for (i=0; i<SIZE; i++)
159		if (table[i]==NULL)
160			printf("\tnullproc,\t/* %s */\n", names[i]);
161		else
162			printf("\t%s,\t/* %s */\n", table[i], names[i]);
163	printf("};\n\n");
164
165	printf("char *tokname(int n)\n");	/* print a tokname() function */
166	printf("{\n");
167	printf("	static char buf[100];\n\n");
168	printf("	if (n < FIRSTTOKEN || n > LASTTOKEN) {\n");
169	printf("		sprintf(buf, \"token %%d\", n);\n");
170	printf("		return buf;\n");
171	printf("	}\n");
172	printf("	return printname[n-FIRSTTOKEN];\n");
173	printf("}\n");
174	return 0;
175}
176