1 /* $OpenBSD: maketab.c,v 1.7 2003/04/04 00:42:34 deraadt Exp $ */ 2 /**************************************************************** 3 Copyright (C) Lucent Technologies 1997 4 All Rights Reserved 5 6 Permission to use, copy, modify, and distribute this software and 7 its documentation for any purpose and without fee is hereby 8 granted, provided that the above copyright notice appear in all 9 copies and that both that the copyright notice and this 10 permission notice and warranty disclaimer appear in supporting 11 documentation, and that the name Lucent Technologies or any of 12 its entities not be used in advertising or publicity pertaining 13 to distribution of the software without specific, written prior 14 permission. 15 16 LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 17 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. 18 IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY 19 SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 21 IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 22 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF 23 THIS SOFTWARE. 24 ****************************************************************/ 25 26 /* 27 * this program makes the table to link function names 28 * and type indices that is used by execute() in run.c. 29 * it finds the indices in ytab.h, produced by yacc. 30 */ 31 32 #include <stdio.h> 33 #include <string.h> 34 #include <stdlib.h> 35 #include "awk.h" 36 #include "ytab.h" 37 38 struct xx 39 { int token; 40 const char *name; 41 const char *pname; 42 } proc[] = { 43 { PROGRAM, "program", NULL }, 44 { BOR, "boolop", " || " }, 45 { AND, "boolop", " && " }, 46 { NOT, "boolop", " !" }, 47 { NE, "relop", " != " }, 48 { EQ, "relop", " == " }, 49 { LE, "relop", " <= " }, 50 { LT, "relop", " < " }, 51 { GE, "relop", " >= " }, 52 { GT, "relop", " > " }, 53 { ARRAY, "array", NULL }, 54 { INDIRECT, "indirect", "$(" }, 55 { SUBSTR, "substr", "substr" }, 56 { SUB, "sub", "sub" }, 57 { GSUB, "gsub", "gsub" }, 58 { INDEX, "sindex", "sindex" }, 59 { SPRINTF, "awksprintf", "sprintf " }, 60 { ADD, "arith", " + " }, 61 { MINUS, "arith", " - " }, 62 { MULT, "arith", " * " }, 63 { DIVIDE, "arith", " / " }, 64 { MOD, "arith", " % " }, 65 { UMINUS, "arith", " -" }, 66 { POWER, "arith", " **" }, 67 { PREINCR, "incrdecr", "++" }, 68 { POSTINCR, "incrdecr", "++" }, 69 { PREDECR, "incrdecr", "--" }, 70 { POSTDECR, "incrdecr", "--" }, 71 { CAT, "cat", " " }, 72 { PASTAT, "pastat", NULL }, 73 { PASTAT2, "dopa2", NULL }, 74 { MATCH, "matchop", " ~ " }, 75 { NOTMATCH, "matchop", " !~ " }, 76 { MATCHFCN, "matchop", "matchop" }, 77 { INTEST, "intest", "intest" }, 78 { PRINTF, "awkprintf", "printf" }, 79 { PRINT, "printstat", "print" }, 80 { CLOSE, "closefile", "closefile" }, 81 { DELETE, "awkdelete", "awkdelete" }, 82 { SPLIT, "split", "split" }, 83 { ASSIGN, "assign", " = " }, 84 { ADDEQ, "assign", " += " }, 85 { SUBEQ, "assign", " -= " }, 86 { MULTEQ, "assign", " *= " }, 87 { DIVEQ, "assign", " /= " }, 88 { MODEQ, "assign", " %= " }, 89 { POWEQ, "assign", " ^= " }, 90 { CONDEXPR, "condexpr", " ?: " }, 91 { IF, "ifstat", "if(" }, 92 { WHILE, "whilestat", "while(" }, 93 { FOR, "forstat", "for(" }, 94 { DO, "dostat", "do" }, 95 { IN, "instat", "instat" }, 96 { NEXT, "jump", "next" }, 97 { NEXTFILE, "jump", "nextfile" }, 98 { EXIT, "jump", "exit" }, 99 { BREAK, "jump", "break" }, 100 { CONTINUE, "jump", "continue" }, 101 { RETURN, "jump", "ret" }, 102 { BLTIN, "bltin", "bltin" }, 103 { CALL, "call", "call" }, 104 { ARG, "arg", "arg" }, 105 { VARNF, "getnf", "NF" }, 106 { GETLINE, "getline", "getline" }, 107 { 0, "", "" }, 108 }; 109 110 #define SIZE (LASTTOKEN - FIRSTTOKEN + 1) 111 const char *table[SIZE]; 112 char *names[SIZE]; 113 114 int main(int argc, char *argv[]) 115 { 116 const struct xx *p; 117 int i, n, tok; 118 char c; 119 FILE *fp; 120 char buf[200], name[200], def[200]; 121 122 printf("#include <stdio.h>\n"); 123 printf("#include \"awk.h\"\n"); 124 printf("#include \"ytab.h\"\n\n"); 125 for (i = SIZE; --i >= 0; ) 126 names[i] = ""; 127 128 if ((fp = fopen("ytab.h", "r")) == NULL) { 129 fprintf(stderr, "maketab: can't open ytab.h!\n"); 130 exit(1); 131 } 132 printf("static char *printname[%d] = {\n", SIZE); 133 i = 0; 134 while (fgets(buf, sizeof buf, fp) != NULL) { 135 n = sscanf(buf, "%1c %s %s %d", &c, def, name, &tok); 136 if (c != '#' || (n != 4 && strcmp(def,"define") != 0)) 137 continue; /* not a valid #define */ 138 if (tok < FIRSTTOKEN || tok > LASTTOKEN) { 139 fprintf(stderr, "maketab: funny token %d %s ignored\n", 140 tok, buf); 141 continue; 142 } 143 names[tok-FIRSTTOKEN] = (char *) strdup(name); 144 if (names[tok-FIRSTTOKEN] == NULL) { 145 fprintf(stderr, "maketab: out of memory\n"); 146 exit(1); 147 } 148 printf("\t(char *) \"%s\",\t/* %d */\n", name, tok); 149 i++; 150 } 151 printf("};\n\n"); 152 153 for (p=proc; p->token!=0; p++) 154 table[p->token-FIRSTTOKEN] = p->name; 155 printf("\nCell *(*proctab[%d])(Node **, int) = {\n", SIZE); 156 for (i=0; i<SIZE; i++) 157 if (table[i]==0) 158 printf("\tnullproc,\t/* %s */\n", names[i]); 159 else 160 printf("\t%s,\t/* %s */\n", table[i], names[i]); 161 printf("};\n\n"); 162 163 printf("char *tokname(int n)\n"); /* print a tokname() function */ 164 printf("{\n"); 165 printf(" static char buf[100];\n\n"); 166 printf(" if (n < FIRSTTOKEN || n > LASTTOKEN) {\n"); 167 printf(" snprintf(buf, sizeof buf, \"token %%d\", n);\n"); 168 printf(" return buf;\n"); 169 printf(" }\n"); 170 printf(" return printname[n-FIRSTTOKEN];\n"); 171 printf("}\n"); 172 return 0; 173 } 174