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optpixi.c
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optpixi.c
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/* This file has been generated with opag 0.8.0. */
/* This file is part of jpegpixi, a program to interpolate pixels in
JFIF image files.
Copyright (C) 2003, 2004, 2005 Martin Dickopp
Jpegpixi is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Jpegpixi 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with jpegpixi; if not, write to the Free Software
Foundation, 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "util.h"
#include <stdio.h>
#ifndef STR_ERR_UNKNOWN_LONG_OPT
# define STR_ERR_UNKNOWN_LONG_OPT _("%s: unrecognized option `--%s'\n")
#endif
#ifndef STR_ERR_LONG_OPT_AMBIGUOUS
# define STR_ERR_LONG_OPT_AMBIGUOUS _("%s: option `--%s' is ambiguous\n")
#endif
#ifndef STR_ERR_MISSING_ARG_LONG
# define STR_ERR_MISSING_ARG_LONG _("%s: option `--%s' requires an argument\n")
#endif
#ifndef STR_ERR_UNEXPEC_ARG_LONG
# define STR_ERR_UNEXPEC_ARG_LONG _("%s: option `--%s' doesn't allow an argument\n")
#endif
#ifndef STR_ERR_UNKNOWN_SHORT_OPT
# define STR_ERR_UNKNOWN_SHORT_OPT _("%s: unrecognized option `-%c'\n")
#endif
#ifndef STR_ERR_MISSING_ARG_SHORT
# define STR_ERR_MISSING_ARG_SHORT _("%s: option `-%c' requires an argument\n")
#endif
#define STR_HELP_BLOCKS_FILE "\
-f, --blocks-file=FILE read pixel block specifications from FILE\n"
#define STR_HELP_METHOD "\
-m, --method=METHOD use interpolation method METHOD [default: linear]\n"
#define STR_HELP_VERBOSE "\
-v, --verbose display coordinates and size of each pixel block\n\
that is interpolated\n"
#define STR_HELP_INFO "\
-i, --info display information about the image\n"
#define STR_HELP_STRIP "\
-s, --strip do not copy comment and extra markers\n"
#define STR_HELP_HELP "\
--help display this help text and exit\n"
#define STR_HELP_VERSION "\
--version display version information and exit\n"
#define STR_HELP _("\
-f, --blocks-file=FILE read pixel block specifications from FILE\n\
-m, --method=METHOD use interpolation method METHOD [default: linear]\n\
-v, --verbose display coordinates and size of each pixel block\n\
that is interpolated\n\
-i, --info display information about the image\n\
-s, --strip do not copy comment and extra markers\n\
--help display this help text and exit\n\
--version display version information and exit\n")
/* Set to 1 if option --blocks-file (-f) has been specified. */
char opt_blocks_file;
/* Set to 1 if option --method (-m) has been specified. */
char opt_method;
/* Set to 1 if option --verbose (-v) has been specified. */
char opt_verbose;
/* Set to 1 if option --info (-i) has been specified. */
char opt_info;
/* Set to 1 if option --strip (-s) has been specified. */
char opt_strip;
/* Set to 1 if option --help has been specified. */
char opt_help;
/* Set to 1 if option --version has been specified. */
char opt_version;
/* Argument to option --blocks-file (-f). */
const char *arg_blocks_file;
/* Argument to option --method (-m). */
const char *arg_method;
/* Parse command line options. Return index of first non-option argument,
or -1 if an error is encountered. */
int parse_options (const char *const program_name, const int argc, char **const argv)
{
static const char *const optstr__blocks_file = "blocks-file";
static const char *const optstr__method = "method";
static const char *const optstr__verbose = "verbose";
static const char *const optstr__info = "info";
static const char *const optstr__strip = "strip";
static const char *const optstr__help = "help";
static const char *const optstr__version = "version";
int i = 0;
opt_blocks_file = 0;
opt_method = 0;
opt_verbose = 0;
opt_info = 0;
opt_strip = 0;
opt_help = 0;
opt_version = 0;
arg_blocks_file = 0;
arg_method = 0;
while (++i < argc)
{
const char *option = argv [i];
if (*option != '-')
return i;
else if (*++option == '\0')
return i;
else if (*option == '-')
{
const char *argument;
size_t option_len;
++option;
if ((argument = strchr (option, '=')) == option)
goto error_unknown_long_opt;
else if (argument == 0)
option_len = strlen (option);
else
option_len = argument++ - option;
switch (*option)
{
case '\0':
return i + 1;
case 'b':
if (strncmp (option + 1, optstr__blocks_file + 1, option_len - 1) == 0)
{
if (argument != 0)
arg_blocks_file = argument;
else if (++i < argc)
arg_blocks_file = argv [i];
else
{
option = optstr__blocks_file;
goto error_missing_arg_long;
}
opt_blocks_file = 1;
break;
}
goto error_unknown_long_opt;
case 'h':
if (strncmp (option + 1, optstr__help + 1, option_len - 1) == 0)
{
if (argument != 0)
{
option = optstr__help;
goto error_unexpec_arg_long;
}
opt_help = 1;
return i + 1;
}
goto error_unknown_long_opt;
case 'i':
if (strncmp (option + 1, optstr__info + 1, option_len - 1) == 0)
{
if (argument != 0)
{
option = optstr__info;
goto error_unexpec_arg_long;
}
opt_info = 1;
break;
}
goto error_unknown_long_opt;
case 'm':
if (strncmp (option + 1, optstr__method + 1, option_len - 1) == 0)
{
if (argument != 0)
arg_method = argument;
else if (++i < argc)
arg_method = argv [i];
else
{
option = optstr__method;
goto error_missing_arg_long;
}
opt_method = 1;
break;
}
goto error_unknown_long_opt;
case 's':
if (strncmp (option + 1, optstr__strip + 1, option_len - 1) == 0)
{
if (argument != 0)
{
option = optstr__strip;
goto error_unexpec_arg_long;
}
opt_strip = 1;
break;
}
goto error_unknown_long_opt;
case 'v':
if (strncmp (option + 1, optstr__verbose + 1, option_len - 1) == 0)
{
if (option_len <= 3)
goto error_long_opt_ambiguous;
if (argument != 0)
{
option = optstr__verbose;
goto error_unexpec_arg_long;
}
opt_verbose = 1;
break;
}
if (strncmp (option + 1, optstr__version + 1, option_len - 1) == 0)
{
if (option_len <= 3)
goto error_long_opt_ambiguous;
if (argument != 0)
{
option = optstr__version;
goto error_unexpec_arg_long;
}
opt_version = 1;
return i + 1;
}
default:
error_unknown_long_opt:
fprintf (stderr, STR_ERR_UNKNOWN_LONG_OPT, program_name, option);
return -1;
error_long_opt_ambiguous:
fprintf (stderr, STR_ERR_LONG_OPT_AMBIGUOUS, program_name, option);
return -1;
error_missing_arg_long:
fprintf (stderr, STR_ERR_MISSING_ARG_LONG, program_name, option);
return -1;
error_unexpec_arg_long:
fprintf (stderr, STR_ERR_UNEXPEC_ARG_LONG, program_name, option);
return -1;
}
}
else
do
{
switch (*option)
{
case 'f':
if (option [1] != '\0')
arg_blocks_file = option + 1;
else if (++i < argc)
arg_blocks_file = argv [i];
else
goto error_missing_arg_short;
option = "\0";
opt_blocks_file = 1;
break;
case 'i':
opt_info = 1;
break;
case 'm':
if (option [1] != '\0')
arg_method = option + 1;
else if (++i < argc)
arg_method = argv [i];
else
goto error_missing_arg_short;
option = "\0";
opt_method = 1;
break;
case 's':
opt_strip = 1;
break;
case 'v':
opt_verbose = 1;
break;
default:
fprintf (stderr, STR_ERR_UNKNOWN_SHORT_OPT, program_name, *option);
return -1;
error_missing_arg_short:
fprintf (stderr, STR_ERR_MISSING_ARG_SHORT, program_name, *option);
return -1;
}
} while (*++option != '\0');
}
return i;
}
/* Display text in response to the --help command line option. */
void
display_help_text (void)
{
printf (_("Usage: %s [OPTION]... SOURCE DEST [[D:]X,Y[,S]|[,SX,SY]]...\n"
"Interpolate pixels in JFIF image files.\n\n"
"Pixel block specification:\n"
" D can be `V' or `v' (vertical 1D interpolation),\n"
" `H' or `h' (horizontal 1D interpolation),\n"
" `2' (2D interpolation) [default];\n"
" X,Y specifies the top left corner of the pixel block to be interpolated;\n"
" S specifies the size of the block [default: 1];\n"
" SX,SY specifies separate sizes for the X and Y direction.\n"
"All numbers can be absolute coordinates/sizes, or percentages of the image\n"
"size (if followed by a `%%' character).\n\n"
"Options:\n"), invocation_name);
fputs (STR_HELP, stdout);
/* TRANSLATORS: Please align the right text column in the
"Interpolation methods" section with the right text column in the
"Options" section. */
fputs (_("\nInterpolation methods:\n"
" 0, av, average average of adjacent pixels\n"
" 1, li, linear (bi)linear interpolation\n"
" 2, qu, quadratic (bi)quadratic interpolation\n"
" 3, cu, cubic (bi)cubic interpolation\n"), stdout);
/* TRANSLATORS: Please include the information that bug reports
should be send in English. E.g., translate "Please report bugs
(in English) to ...". */
fputs (_("\nPlease report bugs to <[email protected]>.\n"), stdout);
}
/* Display text in response to the --version command line option. */
void
display_version_text (void)
{
fputs ("jpegpixi (" PACKAGE_NAME ") " PACKAGE_VERSION "\n", stdout);
/* TRANSLATORS: Please leave the copyright statement intact, but replace
"(C)" with the "copyright sign" (Unicode character <U00A9>). */
fputs (_("Copyright (C) 2002, 2003, 2004, 2005 Martin Dickopp\n\n"), stdout);
/* TRANSLATORS: Please don't translate the warranty disclaimer
literally, but replace it with a text which has a legal effect as
close as possible to the original in the jurisdiction(s) where
your language is used. If unsure, replace it with a translation
of "There is no warranty, to the extent allowed by law." */
fputs (_("This program is free software; it may be copied and/or modified under the\n"
"terms of the GNU General Public License version 2 or (at your option) any\n"
"later version. There is NO warranty; not even for MERCHANTABILITY or FIT-\n"
"NESS FOR A PARTICULAR PURPOSE.\n"), stdout);
}