gecko-dev/ef/Tools/Burg/main.c
1999-02-09 00:07:20 +00:00

172 lines
2.9 KiB
C

char rcsid_main[] = "$Id: main.c,v 1.2 1999/02/09 00:07:20 fur%netscape.com Exp $";
#include <math.h>
#include <stdio.h>
#include "b.h"
#include "fe.h"
int debugTables = 0;
static int simpleTables = 0;
static int internals = 0;
static int diagnostics = 0;
static char *inFileName;
static char *outFileName;
static char version[] = "BURG, Version 1.0";
int
main(argc, argv) int argc; char **argv;
{
int i;
extern int atoi ARGS((char *));
for (i = 1; argv[i]; i++) {
char **needStr = 0;
int *needInt = 0;
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case 'V':
fprintf(stderr, "%s\n", version);
break;
case 'p':
needStr = &prefix;
break;
case 'o':
needStr = &outFileName;
break;
case 'I':
internals = 1;
break;
case 'T':
simpleTables = 1;
break;
case '=':
#ifdef NOLEX
fprintf(stderr, "'%s' was not compiled to support lexicographic ordering\n", argv[0]);
#else
lexical = 1;
#endif /* NOLEX */
break;
case 'O':
needInt = &principleCost;
break;
case 'c':
needInt = &prevent_divergence;
break;
case 'e':
needInt = &exceptionTolerance;
break;
case 'd':
diagnostics = 1;
break;
case 't':
trimflag = 1;
break;
default:
fprintf(stderr, "Bad option (%s)\n", argv[i]);
exit(1);
}
} else {
if (inFileName) {
fprintf(stderr, "Unexpected Filename (%s) after (%s)\n", argv[i], inFileName);
exit(1);
}
inFileName = argv[i];
}
if (needInt || needStr) {
char *v;
char *opt = argv[i];
if (argv[i][2]) {
v = &argv[i][2];
} else {
v = argv[++i];
if (!v) {
fprintf(stderr, "Expection argument after %s\n", opt);
exit(1);
}
}
if (needInt) {
*needInt = atoi(v);
} else if (needStr) {
*needStr = v;
}
}
}
if (inFileName) {
if(freopen(inFileName, "r", stdin)==NULL) {
fprintf(stderr, "Failed opening (%s)", inFileName);
exit(1);
}
}
if (outFileName) {
if ((outfile = fopen(outFileName, "w")) == NULL) {
fprintf(stderr, "Failed opening (%s)", outFileName);
exit(1);
}
} else {
outfile = stdout;
}
yyparse();
if (!rules) {
fprintf(stderr, "ERROR: No rules present\n");
exit(1);
}
findChainRules();
findAllPairs();
build();
debug(debugTables, foreachList((ListFn) dumpOperator_l, operators));
debug(debugTables, printf("---final set of states ---\n"));
debug(debugTables, dumpMapping(globalMap));
startBurm();
makeNts();
if (simpleTables) {
makeSimple();
} else {
makePlanks();
}
startOptional();
makeLabel();
makeKids();
if (internals) {
makeChild();
makeOpLabel();
makeStateLabel();
}
endOptional();
makeOperatorVector();
makeNonterminals();
if (internals) {
makeOperators();
makeStringArray();
makeCostArray();
makeNonterminalArray();
/*
makeLHSmap();
*/
}
makeClosureArray();
if (diagnostics) {
reportDiagnostics();
}
yypurge();
exit(0);
return 0;
}