Note: this backs out a number of changes we've made to awk because they aren't upstream, but are on the vendor branch. Those will be reapplied. svn makes it needlessly difficult to know which ones, but at least r315426, r301289, and maybe r301691, though there may be others too. None of these are critical, so bisecting through this point is safe for all but awk regression tests :).
176 lines
5.2 KiB
C
176 lines
5.2 KiB
C
/****************************************************************
|
|
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 (argc != 2) {
|
|
fprintf(stderr, "usage: maketab YTAB_H\n");
|
|
exit(1);
|
|
}
|
|
if ((fp = fopen(argv[1], "r")) == NULL) {
|
|
fprintf(stderr, "maketab can't open %s!\n", argv[1]);
|
|
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;
|
|
}
|