aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/one-true-awk/maketab.c
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/one-true-awk/maketab.c')
-rw-r--r--contrib/one-true-awk/maketab.c168
1 files changed, 168 insertions, 0 deletions
diff --git a/contrib/one-true-awk/maketab.c b/contrib/one-true-awk/maketab.c
new file mode 100644
index 000000000000..10a038c4bc52
--- /dev/null
+++ b/contrib/one-true-awk/maketab.c
@@ -0,0 +1,168 @@
+/****************************************************************
+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;
+}