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/****************************************************************************
*
* MODULE: g.dirseps
* AUTHOR(S): Paul Kelly
* PURPOSE: Copies input string to stdout, changing directory separator
* characters as specified by flags.
* Used for interoperability between Unix and Windows
* pathnames.
* COPYRIGHT: (C) 2006 by the GRASS Development Team
*
* This program is free software under the GNU General Public
* License (>=v2). Read the file COPYING that comes with GRASS
* for details.
*
*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <grass/gis.h>
#include <grass/glocale.h>
int main(int argc, char *argv[])
{
struct Flag *tohost, *tograss;
struct Option *path;
struct GModule *module;
G_set_program_name(argv[0]);
G_no_gisinit();
G_set_gisrc_mode(G_GISRC_MODE_MEMORY);
module = G_define_module();
G_add_keyword(_("general"));
G_add_keyword(_("map management"));
G_add_keyword(_("scripts"));
module->label = _("Internal GRASS utility for converting directory "
"separator characters.");
module->description =
"Converts any directory separator characters in "
"the input string to or from native host format, and writes the "
"changed "
"path to standard output. Useful in scripts for Windows compatibility.";
tohost = G_define_flag();
tohost->key = 'h';
tohost->description = "Convert directory separators to native host format";
tograss = G_define_flag();
tograss->key = 'g';
tograss->description =
"Convert directory separators to GRASS internal format";
path = G_define_option();
path->key = "path";
path->type = TYPE_STRING;
path->required = NO;
path->description =
"Path to be converted (read from stdin if not specified)";
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
if (!tohost->answer && !tograss->answer)
G_fatal_error("One of flags -%c or -%c must be specified!", tohost->key,
tograss->key);
if (tohost->answer && tograss->answer)
G_fatal_error("Only one of flags -%c or -%c can be specified!",
tohost->key, tograss->key);
if (path->answer) {
/* Take input from command-line option */
char *pathstring = G_store(path->answer);
if (tohost->answer)
G_convert_dirseps_to_host(pathstring);
if (tograss->answer)
G_convert_dirseps_from_host(pathstring);
puts(pathstring);
}
else {
char inchar;
while ((inchar = getc(stdin)) != EOF) {
/* Read a character at a time from stdin until EOF
* and copy to stdout after any conversion */
if (tohost->answer) {
if (inchar == GRASS_DIRSEP)
inchar = HOST_DIRSEP;
}
if (tograss->answer) {
if (inchar == HOST_DIRSEP)
inchar = GRASS_DIRSEP;
}
putchar(inchar);
}
}
fflush(stdout);
exit(EXIT_SUCCESS);
}
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