1 /* $OpenBSD: maketab.c,v 1.10 2008/10/06 20:38:33 millert 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 (n != 4 || c != '#' || 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", tok, buf); */ 140 continue; 141 } 142 names[tok-FIRSTTOKEN] = (char *) strdup(name); 143 if (names[tok-FIRSTTOKEN] == NULL) { 144 fprintf(stderr, "maketab: out of memory\n"); 145 exit(1); 146 } 147 printf("\t(char *) \"%s\",\t/* %d */\n", name, tok); 148 i++; 149 } 150 printf("};\n\n"); 151 152 for (p=proc; p->token!=0; p++) 153 table[p->token-FIRSTTOKEN] = p->name; 154 printf("\nCell *(*proctab[%d])(Node **, int) = {\n", SIZE); 155 for (i=0; i<SIZE; i++) 156 if (table[i]==0) 157 printf("\tnullproc,\t/* %s */\n", names[i]); 158 else 159 printf("\t%s,\t/* %s */\n", table[i], names[i]); 160 printf("};\n\n"); 161 162 printf("char *tokname(int n)\n"); /* print a tokname() function */ 163 printf("{\n"); 164 printf(" static char buf[100];\n\n"); 165 printf(" if (n < FIRSTTOKEN || n > LASTTOKEN) {\n"); 166 printf(" snprintf(buf, sizeof buf, \"token %%d\", n);\n"); 167 printf(" return buf;\n"); 168 printf(" }\n"); 169 printf(" return printname[n-FIRSTTOKEN];\n"); 170 printf("}\n"); 171 return 0; 172 } 173