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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
makelist.c
Create and sort the driver list.
***************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "corefile.h"
#include "cstrpool.h"
static dynamic_array<const char *> drivlist;
static dynamic_array<const char *> ignorelst;
static const_string_pool string_pool;
//-------------------------------------------------
// driver_sort_callback - compare two items in
// a string array
//-------------------------------------------------
int sort_callback(const void *elem1, const void *elem2)
{
const char **item1 = (const char **)elem1;
const char **item2 = (const char **)elem2;
return strcmp(*item1, *item2);
}
//-------------------------------------------------
// isignored - return info if item is in ignore
// list or not
//-------------------------------------------------
bool isignored(const char *drivname)
{
for (int i = 0; i < ignorelst.count(); i++)
if (strcmp(ignorelst[i], drivname) == 0)
return true;
return false;
}
//-------------------------------------------------
// parse_file - parse a single file, may be
// called recursively
//-------------------------------------------------
int parse_file(const char *srcfile)
{
// read source file
dynamic_buffer buffer;
file_error filerr = core_fload(srcfile, buffer);
if (filerr != FILERR_NONE)
{
fprintf(stderr, "Unable to read source file '%s'\n", srcfile);
return 1;
}
// rip through it to find all drivers
char *srcptr = (char *)&buffer[0];
char *endptr = srcptr + buffer.count();
int linenum = 1;
bool in_comment = false;
while (srcptr < endptr)
{
char c = *srcptr++;
// count newlines
if (c == 13 || c == 10)
{
if (c == 13 && *srcptr == 10)
srcptr++;
linenum++;
continue;
}
// skip any spaces
if (isspace(c))
continue;
// look for end of C comment
if (in_comment && c == '*' && *srcptr == '/')
{
srcptr++;
in_comment = false;
continue;
}
// skip anything else inside a C comment
if (in_comment)
continue;
// look for start of C comment
if (c == '/' && *srcptr == '*')
{
srcptr++;
in_comment = true;
continue;
}
// if we hit a C++ comment, scan to the end of line
if (c == '/' && *srcptr == '/')
{
while (srcptr < endptr && *srcptr != 13 && *srcptr != 10)
srcptr++;
continue;
}
// look for an import directive
if (c == '#')
{
char filename[256];
filename[0] = 0;
for (int pos = 0; srcptr < endptr && pos < ARRAY_LENGTH(filename) - 1 && !isspace(*srcptr); pos++)
{
filename[pos] = *srcptr++;
filename[pos+1] = 0;
}
fprintf(stderr, "Importing drivers from '%s'\n", filename);
parse_file(filename);
continue;
}
if (c == '!')
{
char drivname[256];
drivname[0] = 0;
for (int pos = 0; srcptr < endptr && pos < ARRAY_LENGTH(drivname) - 1 && !isspace(*srcptr); pos++)
{
drivname[pos] = *srcptr++;
drivname[pos+1] = 0;
}
fprintf(stderr, "Place driver '%s' to ignore list\n", drivname);
ignorelst.append(string_pool.add(drivname));
continue;
}
// otherwise treat as a driver name
char drivname[32];
drivname[0] = 0;
srcptr--;
for (int pos = 0; srcptr < endptr && pos < ARRAY_LENGTH(drivname) - 1 && !isspace(*srcptr); pos++)
{
drivname[pos] = *srcptr++;
drivname[pos+1] = 0;
}
// verify the name as valid
for (char *drivch = drivname; *drivch != 0; drivch++)
{
if ((*drivch >= 'a' && *drivch <= 'z') || (*drivch >= '0' && *drivch <= '9') || *drivch == '_')
continue;
fprintf(stderr, "%s:%d - Invalid character '%c' in driver \"%s\"\n", srcfile, linenum, *drivch, drivname);
return 1;
}
// add it to the list
if (!isignored(drivname))
drivlist.append(string_pool.add(drivname));
}
return 0;
}
//-------------------------------------------------
// main - primary entry point
//-------------------------------------------------
int main(int argc, char *argv[])
{
// needs at least 1 argument
if (argc < 2)
{
fprintf(stderr,
"Usage:\n"
" makelist <source.lst>\n"
);
return 0;
}
// extract arguments
const char *srcfile = argv[1];
// parse the root file, exit early upon failure
if (parse_file(srcfile))
return 1;
// output a count
if (drivlist.count() == 0)
{
fprintf(stderr, "No drivers found\n");
return 1;
}
fprintf(stderr, "%d drivers found\n", drivlist.count());
// add a reference to the ___empty driver
drivlist.append("___empty");
// sort the list
qsort(drivlist, drivlist.count(), sizeof(drivlist[0]), sort_callback);
// start with a header
printf("#include \"emu.h\"\n\n");
printf("#include \"drivenum.h\"\n\n");
// output the list of externs first
for (int index = 0; index < drivlist.count(); index++)
printf("GAME_EXTERN(%s);\n", drivlist[index]);
printf("\n");
// then output the array
printf("const game_driver * const driver_list::s_drivers_sorted[%d] =\n", drivlist.count());
printf("{\n");
for (int index = 0; index < drivlist.count(); index++)
printf("\t&GAME_NAME(%s)%s\n", drivlist[index], (index == drivlist.count() - 1) ? "" : ",");
printf("};\n");
printf("\n");
// also output a global count
printf("int driver_list::s_driver_count = %d;\n", drivlist.count());
return 0;
}
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