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/****************************************************************

Copyright (C) Lucent Technologies 1997

All Rights Reserved

Permission to use, copy, modify, and distribute this software and

its documentation for any purpose and without fee is hereby

granted, provided that the above copyright notice appear in all

copies and that both that the copyright notice and this

permission notice and warranty disclaimer appear in supporting

documentation, and that the name Lucent Technologies or any of

its entities not be used in advertising or publicity pertaining

to distribution of the software without specific, written prior

permission.

LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.

IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY

SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER

IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF

THIS SOFTWARE.

****************************************************************/

/*

 * this program makes the table to link function names

 * and type indices that is used by execute() in run.c.

 * it finds the indices in ytab.h, produced by yacc.

 */

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include "awk.h"

#include "ytab.h"

struct xx

{	int token;

	const char *name;

	const char *pname;

} proc[] = {

	{ PROGRAM, "program", NULL },

	{ BOR, "boolop", " || " },

	{ AND, "boolop", " && " },

	{ NOT, "boolop", " !" },

	{ NE, "relop", " != " },

	{ EQ, "relop", " == " },

	{ LE, "relop", " <= " },

	{ LT, "relop", " < " },

	{ GE, "relop", " >= " },

	{ GT, "relop", " > " },

	{ ARRAY, "array", NULL },

	{ INDIRECT, "indirect", "$(" },

	{ SUBSTR, "substr", "substr" },

	{ SUB, "sub", "sub" },

	{ GSUB, "gsub", "gsub" },

	{ INDEX, "sindex", "sindex" },

	{ SPRINTF, "awksprintf", "sprintf " },

	{ ADD, "arith", " + " },

	{ MINUS, "arith", " - " },

	{ MULT, "arith", " * " },

	{ DIVIDE, "arith", " / " },

	{ MOD, "arith", " % " },

	{ UMINUS, "arith", " -" },

	{ UPLUS, "arith", " +" },

	{ POWER, "arith", " **" },

	{ PREINCR, "incrdecr", "++" },

	{ POSTINCR, "incrdecr", "++" },

	{ PREDECR, "incrdecr", "--" },

	{ POSTDECR, "incrdecr", "--" },

	{ CAT, "cat", " " },

	{ PASTAT, "pastat", NULL },

	{ PASTAT2, "dopa2", NULL },

	{ MATCH, "matchop", " ~ " },

	{ NOTMATCH, "matchop", " !~ " },

	{ MATCHFCN, "matchop", "matchop" },

	{ INTEST, "intest", "intest" },

	{ PRINTF, "awkprintf", "printf" },

	{ PRINT, "printstat", "print" },

	{ CLOSE, "closefile", "closefile" },

	{ DELETE, "awkdelete", "awkdelete" },

	{ SPLIT, "split", "split" },

	{ ASSIGN, "assign", " = " },

	{ ADDEQ, "assign", " += " },

	{ SUBEQ, "assign", " -= " },

	{ MULTEQ, "assign", " *= " },

	{ DIVEQ, "assign", " /= " },

	{ MODEQ, "assign", " %= " },

	{ POWEQ, "assign", " ^= " },

	{ CONDEXPR, "condexpr", " ?: " },

	{ IF, "ifstat", "if(" },

	{ WHILE, "whilestat", "while(" },

	{ FOR, "forstat", "for(" },

	{ DO, "dostat", "do" },

	{ IN, "instat", "instat" },

	{ NEXT, "jump", "next" },

	{ NEXTFILE, "jump", "nextfile" },

	{ EXIT, "jump", "exit" },

	{ BREAK, "jump", "break" },

	{ CONTINUE, "jump", "continue" },

	{ RETURN, "jump", "ret" },

	{ BLTIN, "bltin", "bltin" },

	{ CALL, "call", "call" },

	{ ARG, "arg", "arg" },

	{ VARNF, "getnf", "NF" },

	{ GETLINE, "awkgetline", "getline" },

	{ 0, "", "" },

};

#define SIZE	(LASTTOKEN - FIRSTTOKEN + 1)

const char *table[SIZE];

char *names[SIZE];

int main(int argc, char *argv[])

{

	const struct xx *p;

	int i, n, tok;

	char c;

	FILE *fp;

	char buf[200], name[200], def[200];

	printf("#include <stdio.h>\n");

	printf("#include \"awk.h\"\n");

	printf("#include \"ytab.h\"\n\n");

	for (i = SIZE; --i >= 0; )

		names[i] = "";

	if ((fp = fopen("ytab.h", "r")) == NULL) {

		fprintf(stderr, "maketab can't open ytab.h!\n");

		exit(1);

	}

	printf("static char *printname[%d] = {\n", SIZE);

	i = 0;

	while (fgets(buf, sizeof buf, fp) != NULL) {

		n = sscanf(buf, "%1c %s %s %d", &c, def, name, &tok);

		if (c != '#' || (n != 4 && strcmp(def,"define") != 0))	/* not a valid #define */

			continue;

		if (strcmp(name, "YYSTYPE_IS_DECLARED") == 0)

			continue;

		if (tok < FIRSTTOKEN || tok > LASTTOKEN) {

			/* fprintf(stderr, "maketab funny token %d %s ignored\n", tok, buf); */

			continue;

		}

		names[tok-FIRSTTOKEN] = (char *) malloc(strlen(name)+1);

		strcpy(names[tok-FIRSTTOKEN], name);

		printf("\t(char *) \"%s\",\t/* %d */\n", name, tok);

		i++;

	}

	printf("};\n\n");

	for (p=proc; p->token!=0; p++)

		table[p->token-FIRSTTOKEN] = p->name;

	printf("\nCell *(*proctab[%d])(Node **, int) = {\n", SIZE);

	for (i=0; i<SIZE; i++)

		if (table[i]==0)

			printf("\tnullproc,\t/* %s */\n", names[i]);

		else

			printf("\t%s,\t/* %s */\n", table[i], names[i]);

	printf("};\n\n");

	printf("char *tokname(int n)\n");	/* print a tokname() function */

	printf("{\n");

	printf("	static char buf[100];\n\n");

	printf("	if (n < FIRSTTOKEN || n > LASTTOKEN) {\n");

	printf("		sprintf(buf, \"token %%d\", n);\n");

	printf("		return buf;\n");

	printf("	}\n");

	printf("	return printname[n-FIRSTTOKEN];\n");

	printf("}\n");

	return 0;

}