ref: 12e226ac6798412271020d42645f69138715c519
dir: /utils/awk/maketab.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; char *name; 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", " -" }, { 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, "getline", "getline" }, { 0, "", "" }, }; #define SIZE (LASTTOKEN - FIRSTTOKEN + 1) char *table[SIZE]; char *names[SIZE]; int main(int argc, char *argv[]) { 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 (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; }