applications/recenter/recenterCmd.cpp

/*
  File autogenerated by gengetopt version 2.22.4
  generated with the following command:
  gengetopt --file-name recenterCmd --unamed-opts 

  The developers of gengetopt consider the fixed text that goes in all
  gengetopt output files to be in the public domain:
  we make no copyright claims on it.
*/

/* If we use autoconf.  */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifndef FIX_UNUSED
#define FIX_UNUSED(X) (void) (X) /* avoid warnings for unused params */
#endif

#ifdef WIN32
#include "utils/wingetopt.h"
#else
#include <getopt.h>
#endif

#include "recenterCmd.h"

const char *gengetopt_args_info_purpose = "Moves all integrable objects in an OpenMD file so that the center of mass is at \nthe origin.";

const char *gengetopt_args_info_usage = "Usage: recenter [OPTIONS]... [FILES]...";

const char *gengetopt_args_info_description = "";

const char *gengetopt_args_info_help[] = {
  "  -h, --help           Print help and exit",
  "  -V, --version        Print version and exit",
  "  -o, --output=STRING  Output file name",
    0
};

typedef enum {ARG_NO
  , ARG_STRING
} cmdline_parser_arg_type;

static
void clear_given (struct gengetopt_args_info *args_info);
static
void clear_args (struct gengetopt_args_info *args_info);

static int
cmdline_parser_internal (int argc, char **argv, struct gengetopt_args_info *args_info,
                        struct cmdline_parser_params *params, const char *additional_error);

static int
cmdline_parser_required2 (struct gengetopt_args_info *args_info, const char *prog_name, const char *additional_error);

static char *
gengetopt_strdup (const char *s);

static
void clear_given (struct gengetopt_args_info *args_info)
{
  args_info->help_given = 0 ;
  args_info->version_given = 0 ;
  args_info->output_given = 0 ;
}

static
void clear_args (struct gengetopt_args_info *args_info)
{
  FIX_UNUSED (args_info);
  args_info->output_arg = NULL;
  args_info->output_orig = NULL;
  
}

static
void init_args_info(struct gengetopt_args_info *args_info)
{


  args_info->help_help = gengetopt_args_info_help[0] ;
  args_info->version_help = gengetopt_args_info_help[1] ;
  args_info->output_help = gengetopt_args_info_help[2] ;
  
}

void
cmdline_parser_print_version (void)
{
  printf ("%s %s\n",
     (strlen(CMDLINE_PARSER_PACKAGE_NAME) ? CMDLINE_PARSER_PACKAGE_NAME : CMDLINE_PARSER_PACKAGE),
     CMDLINE_PARSER_VERSION);
}

static void print_help_common(void) {
  cmdline_parser_print_version ();

  if (strlen(gengetopt_args_info_purpose) > 0)
    printf("\n%s\n", gengetopt_args_info_purpose);

  if (strlen(gengetopt_args_info_usage) > 0)
    printf("\n%s\n", gengetopt_args_info_usage);

  printf("\n");

  if (strlen(gengetopt_args_info_description) > 0)
    printf("%s\n\n", gengetopt_args_info_description);
}

void
cmdline_parser_print_help (void)
{
  int i = 0;
  print_help_common();
  while (gengetopt_args_info_help[i])
    printf("%s\n", gengetopt_args_info_help[i++]);
}

void
cmdline_parser_init (struct gengetopt_args_info *args_info)
{
  clear_given (args_info);
  clear_args (args_info);
  init_args_info (args_info);

  args_info->inputs = 0;
  args_info->inputs_num = 0;
}

void
cmdline_parser_params_init(struct cmdline_parser_params *params)
{
  if (params)
    { 
      params->override = 0;
      params->initialize = 1;
      params->check_required = 1;
      params->check_ambiguity = 0;
      params->print_errors = 1;
    }
}

struct cmdline_parser_params *
cmdline_parser_params_create(void)
{
  struct cmdline_parser_params *params = 
    (struct cmdline_parser_params *)malloc(sizeof(struct cmdline_parser_params));
  cmdline_parser_params_init(params);  
  return params;
}

static void
free_string_field (char **s)
{
  if (*s)
    {
      free (*s);
      *s = 0;
    }
}


static void
cmdline_parser_release (struct gengetopt_args_info *args_info)
{
  unsigned int i;
  free_string_field (&(args_info->output_arg));
  free_string_field (&(args_info->output_orig));
  
  
  for (i = 0; i < args_info->inputs_num; ++i)
    free (args_info->inputs [i]);

  if (args_info->inputs_num)
    free (args_info->inputs);

  clear_given (args_info);
}


static void
write_into_file(FILE *outfile, const char *opt, const char *arg, const char *values[])
{
  FIX_UNUSED (values);
  if (arg) {
    fprintf(outfile, "%s=\"%s\"\n", opt, arg);
  } else {
    fprintf(outfile, "%s\n", opt);
  }
}


int
cmdline_parser_dump(FILE *outfile, struct gengetopt_args_info *args_info)
{
  int i = 0;

  if (!outfile)
    {
      fprintf (stderr, "%s: cannot dump options to stream\n", CMDLINE_PARSER_PACKAGE);
      return EXIT_FAILURE;
    }

  if (args_info->help_given)
    write_into_file(outfile, "help", 0, 0 );
  if (args_info->version_given)
    write_into_file(outfile, "version", 0, 0 );
  if (args_info->output_given)
    write_into_file(outfile, "output", args_info->output_orig, 0);
  

  i = EXIT_SUCCESS;
  return i;
}

int
cmdline_parser_file_save(const char *filename, struct gengetopt_args_info *args_info)
{
  FILE *outfile;
  int i = 0;

  outfile = fopen(filename, "w");

  if (!outfile)
    {
      fprintf (stderr, "%s: cannot open file for writing: %s\n", CMDLINE_PARSER_PACKAGE, filename);
      return EXIT_FAILURE;
    }

  i = cmdline_parser_dump(outfile, args_info);
  fclose (outfile);

  return i;
}

void
cmdline_parser_free (struct gengetopt_args_info *args_info)
{
  cmdline_parser_release (args_info);
}

/** @brief replacement of strdup, which is not standard */
char *
gengetopt_strdup (const char *s)
{
  char *result = 0;
  if (!s)
    return result;

  result = (char*)malloc(strlen(s) + 1);
  if (result == (char*)0)
    return (char*)0;
  strcpy(result, s);
  return result;
}

int
cmdline_parser (int argc, char **argv, struct gengetopt_args_info *args_info)
{
  return cmdline_parser2 (argc, argv, args_info, 0, 1, 1);
}

int
cmdline_parser_ext (int argc, char **argv, struct gengetopt_args_info *args_info,
                   struct cmdline_parser_params *params)
{
  int result;
  result = cmdline_parser_internal (argc, argv, args_info, params, 0);

  if (result == EXIT_FAILURE)
    {
      cmdline_parser_free (args_info);
      exit (EXIT_FAILURE);
    }
  
  return result;
}

int
cmdline_parser2 (int argc, char **argv, struct gengetopt_args_info *args_info, int override, int initialize, int check_required)
{
  int result;
  struct cmdline_parser_params params;
  
  params.override = override;
  params.initialize = initialize;
  params.check_required = check_required;
  params.check_ambiguity = 0;
  params.print_errors = 1;

  result = cmdline_parser_internal (argc, argv, args_info, &params, 0);

  if (result == EXIT_FAILURE)
    {
      cmdline_parser_free (args_info);
      exit (EXIT_FAILURE);
    }
  
  return result;
}

int
cmdline_parser_required (struct gengetopt_args_info *args_info, const char *prog_name)
{
  int result = EXIT_SUCCESS;

  if (cmdline_parser_required2(args_info, prog_name, 0) > 0)
    result = EXIT_FAILURE;

  if (result == EXIT_FAILURE)
    {
      cmdline_parser_free (args_info);
      exit (EXIT_FAILURE);
    }
  
  return result;
}

int
cmdline_parser_required2 (struct gengetopt_args_info *args_info, const char *prog_name, const char *additional_error)
{
  int error = 0;
  FIX_UNUSED (additional_error);

  /* checks for required options */
  if (! args_info->output_given)
    {
      fprintf (stderr, "%s: '--output' ('-o') option required%s\n", prog_name, (additional_error ? additional_error : ""));
      error = 1;
    }
  
  
  /* checks for dependences among options */

  return error;
}


static char *package_name = 0;

/**
 * @brief updates an option
 * @param field the generic pointer to the field to update
 * @param orig_field the pointer to the orig field
 * @param field_given the pointer to the number of occurrence of this option
 * @param prev_given the pointer to the number of occurrence already seen
 * @param value the argument for this option (if null no arg was specified)
 * @param possible_values the possible values for this option (if specified)
 * @param default_value the default value (in case the option only accepts fixed values)
 * @param arg_type the type of this option
 * @param check_ambiguity @see cmdline_parser_params.check_ambiguity
 * @param override @see cmdline_parser_params.override
 * @param no_free whether to free a possible previous value
 * @param multiple_option whether this is a multiple option
 * @param long_opt the corresponding long option
 * @param short_opt the corresponding short option (or '-' if none)
 * @param additional_error possible further error specification
 */
static
int update_arg(void *field, char **orig_field,
               unsigned int *field_given, unsigned int *prev_given, 
               char *value, const char *possible_values[],
               const char *default_value,
               cmdline_parser_arg_type arg_type,
               int check_ambiguity, int override,
               int no_free, int multiple_option,
               const char *long_opt, char short_opt,
               const char *additional_error)
{
  char *stop_char = 0;
  const char *val = value;
  int found;
  char **string_field;
  FIX_UNUSED (field);

  stop_char = 0;
  found = 0;

  if (!multiple_option && prev_given && (*prev_given || (check_ambiguity && *field_given)))
    {
      if (short_opt != '-')
        fprintf (stderr, "%s: `--%s' (`-%c') option given more than once%s\n", 
               package_name, long_opt, short_opt,
               (additional_error ? additional_error : ""));
      else
        fprintf (stderr, "%s: `--%s' option given more than once%s\n", 
               package_name, long_opt,
               (additional_error ? additional_error : ""));
      return 1; /* failure */
    }

  FIX_UNUSED (default_value);
    
  if (field_given && *field_given && ! override)
    return 0;
  if (prev_given)
    (*prev_given)++;
  if (field_given)
    (*field_given)++;
  if (possible_values)
    val = possible_values[found];

  switch(arg_type) {
  case ARG_STRING:
    if (val) {
      string_field = (char **)field;
      if (!no_free && *string_field)
        free (*string_field); /* free previous string */
      *string_field = gengetopt_strdup (val);
    }
    break;
  default:
    break;
  };


  /* store the original value */
  switch(arg_type) {
  case ARG_NO:
    break;
  default:
    if (value && orig_field) {
      if (no_free) {
        *orig_field = value;
      } else {
        if (*orig_field)
          free (*orig_field); /* free previous string */
        *orig_field = gengetopt_strdup (value);
      }
    }
  };

  return 0; /* OK */
}


int
cmdline_parser_internal (
  int argc, char **argv, struct gengetopt_args_info *args_info,
                        struct cmdline_parser_params *params, const char *additional_error)
{
  int c;        /* Character of the parsed option.  */

  int error = 0;
  struct gengetopt_args_info local_args_info;
  
  int override;
  int initialize;
  int check_required;
  int check_ambiguity;
  
  package_name = argv[0];
  
  override = params->override;
  initialize = params->initialize;
  check_required = params->check_required;
  check_ambiguity = params->check_ambiguity;

  if (initialize)
    cmdline_parser_init (args_info);

  cmdline_parser_init (&local_args_info);

  optarg = 0;
  optind = 0;
  opterr = params->print_errors;
  optopt = '?';

  while (1)
    {
      int option_index = 0;

      static struct option long_options[] = {
        { "help",       0, NULL, 'h' },
        { "version",    0, NULL, 'V' },
        { "output",     1, NULL, 'o' },
        { 0,  0, 0, 0 }
      };

      c = getopt_long (argc, argv, "hVo:", long_options, &option_index);

      if (c == -1) break;       /* Exit from `while (1)' loop.  */

      switch (c)
        {
        case 'h':       /* Print help and exit.  */
          cmdline_parser_print_help ();
          cmdline_parser_free (&local_args_info);
          exit (EXIT_SUCCESS);

        case 'V':       /* Print version and exit.  */
          cmdline_parser_print_version ();
          cmdline_parser_free (&local_args_info);
          exit (EXIT_SUCCESS);

        case 'o':       /* Output file name.  */
        
        
          if (update_arg( (void *)&(args_info->output_arg), 
               &(args_info->output_orig), &(args_info->output_given),
              &(local_args_info.output_given), optarg, 0, 0, ARG_STRING,
              check_ambiguity, override, 0, 0,
              "output", 'o',
              additional_error))
            goto failure;
        
          break;

        case 0: /* Long option with no short option */
        case '?':       /* Invalid option.  */
          /* `getopt_long' already printed an error message.  */
          goto failure;

        default:        /* bug: option not considered.  */
          fprintf (stderr, "%s: option unknown: %c%s\n", CMDLINE_PARSER_PACKAGE, c, (additional_error ? additional_error : ""));
          abort ();
        } /* switch */
    } /* while */


  if (check_required)
    {
      error += cmdline_parser_required2 (args_info, argv[0], additional_error);
    }

  cmdline_parser_release (&local_args_info);

  if ( error )
    return (EXIT_FAILURE);

  if (optind < argc)
    {
      int i = 0 ;
      int found_prog_name = 0;
      /* whether program name, i.e., argv[0], is in the remaining args
         (this may happen with some implementations of getopt,
          but surely not with the one included by gengetopt) */

      i = optind;
      while (i < argc)
        if (argv[i++] == argv[0]) {
          found_prog_name = 1;
          break;
        }
      i = 0;

      args_info->inputs_num = argc - optind - found_prog_name;
      args_info->inputs =
        (char **)(malloc ((args_info->inputs_num)*sizeof(char *))) ;
      while (optind < argc)
        if (argv[optind++] != argv[0])
          args_info->inputs[ i++ ] = gengetopt_strdup (argv[optind-1]) ;
    }

  return 0;

failure:
  
  cmdline_parser_release (&local_args_info);
  return (EXIT_FAILURE);
}
Revision:	1876
Committed:	Fri May 17 17:10:11 2013 UTC (11 years, 11 months ago) by gezelter
File size:	14070 byte(s)
Log Message:	Compilation and portability fixes
#	User	Rev	Content
1	kstocke1	1857	/*
2			File autogenerated by gengetopt version 2.22.4
3			generated with the following command:
4			gengetopt --file-name recenterCmd --unamed-opts
5
6			The developers of gengetopt consider the fixed text that goes in all
7			gengetopt output files to be in the public domain:
8			we make no copyright claims on it.
9			*/
10
11			/* If we use autoconf. */
12			#ifdef HAVE_CONFIG_H
13			#include "config.h"
14			#endif
15
16			#include <stdio.h>
17			#include <stdlib.h>
18			#include <string.h>
19
20			#ifndef FIX_UNUSED
21			#define FIX_UNUSED(X) (void) (X) /* avoid warnings for unused params */
22			#endif
23
24	gezelter	1876	#ifdef WIN32
25			#include "utils/wingetopt.h"
26			#else
27	kstocke1	1857	#include <getopt.h>
28	gezelter	1876	#endif
29	kstocke1	1857
30			#include "recenterCmd.h"
31
32			const char *gengetopt_args_info_purpose = "Moves all integrable objects in an OpenMD file so that the center of mass is at \nthe origin.";
33
34			const char *gengetopt_args_info_usage = "Usage: recenter [OPTIONS]... [FILES]...";
35
36			const char *gengetopt_args_info_description = "";
37
38			const char *gengetopt_args_info_help[] = {
39			" -h, --help Print help and exit",
40			" -V, --version Print version and exit",
41			" -o, --output=STRING Output file name",
42			0
43			};
44
45			typedef enum {ARG_NO
46			, ARG_STRING
47			} cmdline_parser_arg_type;
48
49			static
50			void clear_given (struct gengetopt_args_info *args_info);
51			static
52			void clear_args (struct gengetopt_args_info *args_info);
53
54			static int
55			cmdline_parser_internal (int argc, char *argv, struct gengetopt_args_info args_info,
56			struct cmdline_parser_params params, const char additional_error);
57
58			static int
59			cmdline_parser_required2 (struct gengetopt_args_info args_info, const char prog_name, const char *additional_error);
60
61			static char *
62			gengetopt_strdup (const char *s);
63
64			static
65			void clear_given (struct gengetopt_args_info *args_info)
66			{
67			args_info->help_given = 0 ;
68			args_info->version_given = 0 ;
69			args_info->output_given = 0 ;
70			}
71
72			static
73			void clear_args (struct gengetopt_args_info *args_info)
74			{
75			FIX_UNUSED (args_info);
76			args_info->output_arg = NULL;
77			args_info->output_orig = NULL;
78
79			}
80
81			static
82			void init_args_info(struct gengetopt_args_info *args_info)
83			{
84
85
86			args_info->help_help = gengetopt_args_info_help[0] ;
87			args_info->version_help = gengetopt_args_info_help[1] ;
88			args_info->output_help = gengetopt_args_info_help[2] ;
89
90			}
91
92			void
93			cmdline_parser_print_version (void)
94			{
95			printf ("%s %s\n",
96			(strlen(CMDLINE_PARSER_PACKAGE_NAME) ? CMDLINE_PARSER_PACKAGE_NAME : CMDLINE_PARSER_PACKAGE),
97			CMDLINE_PARSER_VERSION);
98			}
99
100			static void print_help_common(void) {
101			cmdline_parser_print_version ();
102
103			if (strlen(gengetopt_args_info_purpose) > 0)
104			printf("\n%s\n", gengetopt_args_info_purpose);
105
106			if (strlen(gengetopt_args_info_usage) > 0)
107			printf("\n%s\n", gengetopt_args_info_usage);
108
109			printf("\n");
110
111			if (strlen(gengetopt_args_info_description) > 0)
112			printf("%s\n\n", gengetopt_args_info_description);
113			}
114
115			void
116			cmdline_parser_print_help (void)
117			{
118			int i = 0;
119			print_help_common();
120			while (gengetopt_args_info_help[i])
121			printf("%s\n", gengetopt_args_info_help[i++]);
122			}
123
124			void
125			cmdline_parser_init (struct gengetopt_args_info *args_info)
126			{
127			clear_given (args_info);
128			clear_args (args_info);
129			init_args_info (args_info);
130
131			args_info->inputs = 0;
132			args_info->inputs_num = 0;
133			}
134
135			void
136			cmdline_parser_params_init(struct cmdline_parser_params *params)
137			{
138			if (params)
139			{
140			params->override = 0;
141			params->initialize = 1;
142			params->check_required = 1;
143			params->check_ambiguity = 0;
144			params->print_errors = 1;
145			}
146			}
147
148			struct cmdline_parser_params *
149			cmdline_parser_params_create(void)
150			{
151			struct cmdline_parser_params *params =
152			(struct cmdline_parser_params *)malloc(sizeof(struct cmdline_parser_params));
153			cmdline_parser_params_init(params);
154			return params;
155			}
156
157			static void
158			free_string_field (char **s)
159			{
160			if (*s)
161			{
162			free (*s);
163			*s = 0;
164			}
165			}
166
167
168			static void
169			cmdline_parser_release (struct gengetopt_args_info *args_info)
170			{
171			unsigned int i;
172			free_string_field (&(args_info->output_arg));
173			free_string_field (&(args_info->output_orig));
174
175
176			for (i = 0; i < args_info->inputs_num; ++i)
177			free (args_info->inputs [i]);
178
179			if (args_info->inputs_num)
180			free (args_info->inputs);
181
182			clear_given (args_info);
183			}
184
185
186			static void
187			write_into_file(FILE outfile, const char opt, const char arg, const char values[])
188			{
189			FIX_UNUSED (values);
190			if (arg) {
191			fprintf(outfile, "%s=\"%s\"\n", opt, arg);
192			} else {
193			fprintf(outfile, "%s\n", opt);
194			}
195			}
196
197
198			int
199			cmdline_parser_dump(FILE outfile, struct gengetopt_args_info args_info)
200			{
201			int i = 0;
202
203			if (!outfile)
204			{
205			fprintf (stderr, "%s: cannot dump options to stream\n", CMDLINE_PARSER_PACKAGE);
206			return EXIT_FAILURE;
207			}
208
209			if (args_info->help_given)
210			write_into_file(outfile, "help", 0, 0 );
211			if (args_info->version_given)
212			write_into_file(outfile, "version", 0, 0 );
213			if (args_info->output_given)
214			write_into_file(outfile, "output", args_info->output_orig, 0);
215
216
217			i = EXIT_SUCCESS;
218			return i;
219			}
220
221			int
222			cmdline_parser_file_save(const char filename, struct gengetopt_args_info args_info)
223			{
224			FILE *outfile;
225			int i = 0;
226
227			outfile = fopen(filename, "w");
228
229			if (!outfile)
230			{
231			fprintf (stderr, "%s: cannot open file for writing: %s\n", CMDLINE_PARSER_PACKAGE, filename);
232			return EXIT_FAILURE;
233			}
234
235			i = cmdline_parser_dump(outfile, args_info);
236			fclose (outfile);
237
238			return i;
239			}
240
241			void
242			cmdline_parser_free (struct gengetopt_args_info *args_info)
243			{
244			cmdline_parser_release (args_info);
245			}
246
247			/** @brief replacement of strdup, which is not standard */
248			char *
249			gengetopt_strdup (const char *s)
250			{
251			char *result = 0;
252			if (!s)
253			return result;
254
255			result = (char*)malloc(strlen(s) + 1);
256			if (result == (char*)0)
257			return (char*)0;
258			strcpy(result, s);
259			return result;
260			}
261
262			int
263			cmdline_parser (int argc, char *argv, struct gengetopt_args_info args_info)
264			{
265			return cmdline_parser2 (argc, argv, args_info, 0, 1, 1);
266			}
267
268			int
269			cmdline_parser_ext (int argc, char *argv, struct gengetopt_args_info args_info,
270			struct cmdline_parser_params *params)
271			{
272			int result;
273			result = cmdline_parser_internal (argc, argv, args_info, params, 0);
274
275			if (result == EXIT_FAILURE)
276			{
277			cmdline_parser_free (args_info);
278			exit (EXIT_FAILURE);
279			}
280
281			return result;
282			}
283
284			int
285			cmdline_parser2 (int argc, char *argv, struct gengetopt_args_info args_info, int override, int initialize, int check_required)
286			{
287			int result;
288			struct cmdline_parser_params params;
289
290			params.override = override;
291			params.initialize = initialize;
292			params.check_required = check_required;
293			params.check_ambiguity = 0;
294			params.print_errors = 1;
295
296			result = cmdline_parser_internal (argc, argv, args_info, &params, 0);
297
298			if (result == EXIT_FAILURE)
299			{
300			cmdline_parser_free (args_info);
301			exit (EXIT_FAILURE);
302			}
303
304			return result;
305			}
306
307			int
308			cmdline_parser_required (struct gengetopt_args_info args_info, const char prog_name)
309			{
310			int result = EXIT_SUCCESS;
311
312			if (cmdline_parser_required2(args_info, prog_name, 0) > 0)
313			result = EXIT_FAILURE;
314
315			if (result == EXIT_FAILURE)
316			{
317			cmdline_parser_free (args_info);
318			exit (EXIT_FAILURE);
319			}
320
321			return result;
322			}
323
324			int
325			cmdline_parser_required2 (struct gengetopt_args_info args_info, const char prog_name, const char *additional_error)
326			{
327			int error = 0;
328			FIX_UNUSED (additional_error);
329
330			/* checks for required options */
331			if (! args_info->output_given)
332			{
333			fprintf (stderr, "%s: '--output' ('-o') option required%s\n", prog_name, (additional_error ? additional_error : ""));
334			error = 1;
335			}
336
337
338			/* checks for dependences among options */
339
340			return error;
341			}
342
343
344			static char *package_name = 0;
345
346			/**
347			* @brief updates an option
348			* @param field the generic pointer to the field to update
349			* @param orig_field the pointer to the orig field
350			* @param field_given the pointer to the number of occurrence of this option
351			* @param prev_given the pointer to the number of occurrence already seen
352			* @param value the argument for this option (if null no arg was specified)
353			* @param possible_values the possible values for this option (if specified)
354			* @param default_value the default value (in case the option only accepts fixed values)
355			* @param arg_type the type of this option
356			* @param check_ambiguity @see cmdline_parser_params.check_ambiguity
357			* @param override @see cmdline_parser_params.override
358			* @param no_free whether to free a possible previous value
359			* @param multiple_option whether this is a multiple option
360			* @param long_opt the corresponding long option
361			* @param short_opt the corresponding short option (or '-' if none)
362			* @param additional_error possible further error specification
363			*/
364			static
365			int update_arg(void field, char *orig_field,
366			unsigned int field_given, unsigned int prev_given,
367			char value, const char possible_values[],
368			const char *default_value,
369			cmdline_parser_arg_type arg_type,
370			int check_ambiguity, int override,
371			int no_free, int multiple_option,
372			const char *long_opt, char short_opt,
373			const char *additional_error)
374			{
375			char *stop_char = 0;
376			const char *val = value;
377			int found;
378			char **string_field;
379			FIX_UNUSED (field);
380
381			stop_char = 0;
382			found = 0;
383
384			if (!multiple_option && prev_given && (prev_given \|\| (check_ambiguity && field_given)))
385			{
386			if (short_opt != '-')
387			fprintf (stderr, "%s: `--%s' (`-%c') option given more than once%s\n",
388			package_name, long_opt, short_opt,
389			(additional_error ? additional_error : ""));
390			else
391			fprintf (stderr, "%s: `--%s' option given more than once%s\n",
392			package_name, long_opt,
393			(additional_error ? additional_error : ""));
394			return 1; /* failure */
395			}
396
397			FIX_UNUSED (default_value);
398
399			if (field_given && *field_given && ! override)
400			return 0;
401			if (prev_given)
402			(*prev_given)++;
403			if (field_given)
404			(*field_given)++;
405			if (possible_values)
406			val = possible_values[found];
407
408			switch(arg_type) {
409			case ARG_STRING:
410			if (val) {
411			string_field = (char **)field;
412			if (!no_free && *string_field)
413			free (string_field); / free previous string */
414			*string_field = gengetopt_strdup (val);
415			}
416			break;
417			default:
418			break;
419			};
420
421
422			/* store the original value */
423			switch(arg_type) {
424			case ARG_NO:
425			break;
426			default:
427			if (value && orig_field) {
428			if (no_free) {
429			*orig_field = value;
430			} else {
431			if (*orig_field)
432			free (orig_field); / free previous string */
433			*orig_field = gengetopt_strdup (value);
434			}
435			}
436			};
437
438			return 0; /* OK */
439			}
440
441
442			int
443			cmdline_parser_internal (
444			int argc, char *argv, struct gengetopt_args_info args_info,
445			struct cmdline_parser_params params, const char additional_error)
446			{
447			int c; /* Character of the parsed option. */
448
449			int error = 0;
450			struct gengetopt_args_info local_args_info;
451
452			int override;
453			int initialize;
454			int check_required;
455			int check_ambiguity;
456
457			package_name = argv[0];
458
459			override = params->override;
460			initialize = params->initialize;
461			check_required = params->check_required;
462			check_ambiguity = params->check_ambiguity;
463
464			if (initialize)
465			cmdline_parser_init (args_info);
466
467			cmdline_parser_init (&local_args_info);
468
469			optarg = 0;
470			optind = 0;
471			opterr = params->print_errors;
472			optopt = '?';
473
474			while (1)
475			{
476			int option_index = 0;
477
478			static struct option long_options[] = {
479			{ "help", 0, NULL, 'h' },
480			{ "version", 0, NULL, 'V' },
481			{ "output", 1, NULL, 'o' },
482			{ 0, 0, 0, 0 }
483			};
484
485			c = getopt_long (argc, argv, "hVo:", long_options, &option_index);
486
487			if (c == -1) break; /* Exit from `while (1)' loop. */
488
489			switch (c)
490			{
491			case 'h': /* Print help and exit. */
492			cmdline_parser_print_help ();
493			cmdline_parser_free (&local_args_info);
494			exit (EXIT_SUCCESS);
495
496			case 'V': /* Print version and exit. */
497			cmdline_parser_print_version ();
498			cmdline_parser_free (&local_args_info);
499			exit (EXIT_SUCCESS);
500
501			case 'o': /* Output file name. */
502
503
504			if (update_arg( (void *)&(args_info->output_arg),
505			&(args_info->output_orig), &(args_info->output_given),
506			&(local_args_info.output_given), optarg, 0, 0, ARG_STRING,
507			check_ambiguity, override, 0, 0,
508			"output", 'o',
509			additional_error))
510			goto failure;
511
512			break;
513
514			case 0: /* Long option with no short option */
515			case '?': /* Invalid option. */
516			/* `getopt_long' already printed an error message. */
517			goto failure;
518
519			default: /* bug: option not considered. */
520			fprintf (stderr, "%s: option unknown: %c%s\n", CMDLINE_PARSER_PACKAGE, c, (additional_error ? additional_error : ""));
521			abort ();
522			} /* switch */
523			} /* while */
524
525
526
527			if (check_required)
528			{
529			error += cmdline_parser_required2 (args_info, argv[0], additional_error);
530			}
531
532			cmdline_parser_release (&local_args_info);
533
534			if ( error )
535			return (EXIT_FAILURE);
536
537			if (optind < argc)
538			{
539			int i = 0 ;
540			int found_prog_name = 0;
541			/* whether program name, i.e., argv[0], is in the remaining args
542			(this may happen with some implementations of getopt,
543			but surely not with the one included by gengetopt) */
544
545			i = optind;
546			while (i < argc)
547			if (argv[i++] == argv[0]) {
548			found_prog_name = 1;
549			break;
550			}
551			i = 0;
552
553			args_info->inputs_num = argc - optind - found_prog_name;
554			args_info->inputs =
555			(char *)(malloc ((args_info->inputs_num)sizeof(char *))) ;
556			while (optind < argc)
557			if (argv[optind++] != argv[0])
558			args_info->inputs[ i++ ] = gengetopt_strdup (argv[optind-1]) ;
559			}
560
561			return 0;
562
563			failure:
564
565			cmdline_parser_release (&local_args_info);
566			return (EXIT_FAILURE);
567			}