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#if HAVE_NBTOOL_CONFIG_H
26#include "nbtool_config.h"
27#endif
28
29/*
30 * this program makes the table to link function names
31 * and type indices that is used by execute() in run.c.
32 * it finds the indices in ytab.h, produced by yacc.
33 */
34
35#include <stdio.h>
36#include <string.h>
37#include <stdlib.h>
38#include "awk.h"
39#include "awkgram.h"
40
41struct xx
42{	int token;
43	const char *name;
44	const char *pname;
45} proc[] = {
46	{ PROGRAM, "program", NULL },
47	{ BOR, "boolop", " || " },
48	{ AND, "boolop", " && " },
49	{ NOT, "boolop", " !" },
50	{ NE, "relop", " != " },
51	{ EQ, "relop", " == " },
52	{ LE, "relop", " <= " },
53	{ LT, "relop", " < " },
54	{ GE, "relop", " >= " },
55	{ GT, "relop", " > " },
56	{ ARRAY, "array", NULL },
57	{ INDIRECT, "indirect", "$(" },
58	{ SUBSTR, "substr", "substr" },
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	{ UPLUS, "arith", " +" },
70	{ POWER, "arith", " **" },
71	{ PREINCR, "incrdecr", "++" },
72	{ POSTINCR, "incrdecr", "++" },
73	{ PREDECR, "incrdecr", "--" },
74	{ POSTDECR, "incrdecr", "--" },
75	{ CAT, "cat", " " },
76	{ PASTAT, "pastat", NULL },
77	{ PASTAT2, "dopa2", NULL },
78	{ MATCH, "matchop", " ~ " },
79	{ NOTMATCH, "matchop", " !~ " },
80	{ MATCHFCN, "matchop", "matchop" },
81	{ INTEST, "intest", "intest" },
82	{ PRINTF, "awkprintf", "printf" },
83	{ PRINT, "printstat", "print" },
84	{ CLOSE, "closefile", "closefile" },
85	{ DELETE, "awkdelete", "awkdelete" },
86	{ SPLIT, "split", "split" },
87	{ ASSIGN, "assign", " = " },
88	{ ADDEQ, "assign", " += " },
89	{ SUBEQ, "assign", " -= " },
90	{ MULTEQ, "assign", " *= " },
91	{ DIVEQ, "assign", " /= " },
92	{ MODEQ, "assign", " %= " },
93	{ POWEQ, "assign", " ^= " },
94	{ CONDEXPR, "condexpr", " ?: " },
95	{ IF, "ifstat", "if(" },
96	{ WHILE, "whilestat", "while(" },
97	{ FOR, "forstat", "for(" },
98	{ DO, "dostat", "do" },
99	{ IN, "instat", "instat" },
100	{ NEXT, "jump", "next" },
101	{ NEXTFILE, "jump", "nextfile" },
102	{ EXIT, "jump", "exit" },
103	{ BREAK, "jump", "break" },
104	{ CONTINUE, "jump", "continue" },
105	{ RETURN, "jump", "ret" },
106	{ BLTIN, "bltin", "bltin" },
107	{ CALL, "call", "call" },
108	{ ARG, "arg", "arg" },
109	{ VARNF, "getnf", "NF" },
110	{ GETLINE, "awkgetline", "getline" },
111	{ GENSUB, "gensub", "gensub" },
112	{ 0, "", "" },
113};
114
115#define SIZE	(LASTTOKEN - FIRSTTOKEN + 1)
116const char *table[SIZE];
117char *names[SIZE];
118
119int main(int argc, char *argv[])
120{
121	const struct xx *p;
122	int i, n, tok;
123	char c;
124	FILE *fp;
125	char buf[200], name[200], def[200];
126	enum { TOK_UNKNOWN, TOK_ENUM, TOK_DEFINE } tokentype = TOK_UNKNOWN;
127
128	printf("#include <stdio.h>\n");
129	printf("#include \"awk.h\"\n");
130	printf("#include \"ytab.h\"\n\n");
131
132	if (argc != 2) {
133		fprintf(stderr, "usage: maketab YTAB_H\n");
134		exit(1);
135	}
136	if ((fp = fopen(argv[1], "r")) == NULL) {
137		fprintf(stderr, "maketab can't open %s!\n", argv[1]);
138		exit(1);
139	}
140	printf("static const char * const printname[%d] = {\n", SIZE);
141	i = 0;
142	while (fgets(buf, sizeof buf, fp) != NULL) {
143		// 199 is sizeof(def) - 1
144		if (tokentype != TOK_ENUM) {
145			n = sscanf(buf, "%1c %199s %199s %d", &c, def, name,
146			    &tok);
147			if (n == 4 && c == '#' && strcmp(def, "define") == 0) {
148				tokentype = TOK_DEFINE;
149			} else if (tokentype != TOK_UNKNOWN) {
150				continue;
151			}
152		}
153		if (tokentype != TOK_DEFINE) {
154			/* not a valid #define, bison uses enums now */
155			n = sscanf(buf, "%199s = %d,\n", name, &tok);
156			if (n != 2)
157				continue;
158			tokentype = TOK_ENUM;
159		}
160		if (strcmp(name, "YYSTYPE_IS_DECLARED") == 0) {
161			tokentype = TOK_UNKNOWN;
162			continue;
163		}
164		if (tok < FIRSTTOKEN || tok > LASTTOKEN) {
165			tokentype = TOK_UNKNOWN;
166			/* fprintf(stderr, "maketab funny token %d %s ignored\n", tok, buf); */
167			continue;
168		}
169		names[tok-FIRSTTOKEN] = strdup(name);
170		if (names[tok-FIRSTTOKEN] == NULL) {
171			fprintf(stderr, "maketab out of space copying %s", name);
172			continue;
173		}
174		printf("\t\"%s\",\t/* %d */\n", name, tok);
175		i++;
176	}
177	printf("};\n\n");
178
179	for (p=proc; p->token!=0; p++)
180		table[p->token-FIRSTTOKEN] = p->name;
181	printf("\nCell *(*proctab[%d])(Node **, int) = {\n", SIZE);
182	for (i=0; i<SIZE; i++)
183		printf("\t%s,\t/* %s */\n",
184		    table[i] ? table[i] : "nullproc", names[i] ? names[i] : "");
185	printf("};\n\n");
186
187	printf("const char *tokname(int n)\n");	/* print a tokname() function */
188	printf("{\n");
189	printf("\tstatic char buf[100];\n\n");
190	printf("\tif (n < FIRSTTOKEN || n > LASTTOKEN) {\n");
191	printf("\t\tsnprintf(buf, sizeof(buf), \"token %%d\", n);\n");
192	printf("\t\treturn buf;\n");
193	printf("\t}\n");
194	printf("\treturn printname[n-FIRSTTOKEN];\n");
195	printf("}\n");
196	return 0;
197}
198