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/* $Id$
Part of XPCE --- The SWI-Prolog GUI toolkit
Author: Jan Wielemaker and Anjo Anjewierden
E-mail: J.Wielemaker@uva.nl
WWW: http://www.swi-prolog.org/packages/xpce/
Copyright (C): 2008, University of Amsterdam
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
This program is used to generate the built-in name database from
NAME_<id> found in the sources. It must be called in the source
directory using
find_names h/names.ic h/names.ih -- file ...
Older versions used POSIX scripting for this, but this has been moved to
a plain C program to facilitate building on on-POSIX platforms (read:
M$-Windows).
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define LINESIZE 1024
const char *name = "NAME_";
char **names;
int allocated = 0;
int count = 0;
static void
save_name(const char *name)
{ if ( count >= allocated )
{ if ( allocated )
{ allocated *= 2;
names = realloc(names, allocated*sizeof(char*));
} else
{ allocated = 1024;
names = malloc(allocated*sizeof(char*));
}
}
names[count++] = strdup(name);
}
static int
scan_file(const char *file)
{ FILE *fd = fopen(file, "r");
char buf[LINESIZE];
size_t len = strlen(name);
if ( !fd )
{ fprintf(stderr, "Warning: could not open %s (skipped)\n", file);
return 0;
}
while(fgets(buf, sizeof(buf), fd))
{ const char *s;
for(s = buf; *s; s++)
{ if ( s[0] == 'N' && strncmp(name, s, len) == 0 )
{ const char *start = s = s + len;
char nbuf[200];
if ( strncmp(s, "MAX", 3) == 0 ) /* avoid NAME_MAX */
continue;
while(*s && (isalnum(*s & 0xff) || *s == '_') )
s++;
strncpy(nbuf, start, s-start);
nbuf[s-start] = '\0';
save_name(nbuf);
}
}
}
fclose(fd);
return 1;
}
static int
cmp_names(const void *p1, const void *p2)
{ return strcmp(*(char**)p1, *(char**)p2);
}
static void
sort_names()
{ if ( count > 0 )
{ int in, out;
qsort(names, count, sizeof(char*), cmp_names);
for(in=1, out=1; in<count; in++)
{ if ( strcmp(names[out-1], names[in]) == 0 )
{ free(names[in]);
} else
{ names[out++] = names[in];
}
}
count = out;
}
}
static void
emit_names(FILE *ic, FILE *ih)
{ int i;
for(i=0; i<count; i++)
{ const char *name = names[i];
char prolog[LINESIZE];
const char *s;
char *q;
for(s=name, q=prolog; *s; s++)
{ if ( isupper(*s & 0xff) )
{ *q++ = '_';
*q++ = *s + 'a' - 'A';
} else
{ *q++ = *s;
}
}
*q = '\0';
fprintf(ic, " BUILTIN_NAME(\"%s\")\n", prolog);
fprintf(ih, "#define NAME_%s (&builtin_names[%d])\n", name, i);
}
}
int
main(int argc, char **argv)
{ int i;
const char *program = argv[0];
FILE *ic, *ih;
argc--; /* skip program */
argv++;
if ( argc < 3 || strcmp(argv[2], "--") )
{ fprintf(stderr, "Usage: %s ic-file ih-file -- file ...\n", program);
exit(1);
}
if ( !(ic = fopen(argv[0], "w")) ||
!(ih = fopen(argv[1], "w")) )
{ fprintf(stderr, "%s: Could not open output\n", program);
exit(1);
}
argc -= 3;
argv += 3;
for(i=1; i<argc; i++)
scan_file(argv[i]);
sort_names();
emit_names(ic, ih);
fclose(ic);
fclose(ih);
return 0;
}
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