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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 (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;
| }
|
|
