Use gengetopt for commandline argslife-0.4.0

Added life.ggo

Signed-off-by: Aiden Woodruff <aiden.woodruff@gmail.com>

5 files changed, 834 insertions, 18 deletions

diff --git a/cmdline-life.c b/cmdline-life.c
new file mode 100644
index 0000000..5a11296
--- /dev/null
+++ b/cmdline-life.c
@@ -0,0 +1,604 @@
+/*
+  File autogenerated by gengetopt version 2.22.6
+  generated with the following command:
+  gengetopt --file-name=cmdline-life
+
+  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
+
+#include <getopt.h>
+
+#include "cmdline-life.h"
+
+const char *gengetopt_args_info_purpose = "";
+
+const char *gengetopt_args_info_usage = "Usage: " CMDLINE_PARSER_PACKAGE " [OPTIONS]...";
+
+const char *gengetopt_args_info_versiontext = "";
+
+const char *gengetopt_args_info_description = "";
+
+const char *gengetopt_args_info_detailed_help[] = {
+  "      --help                  Print help and exit",
+  "      --detailed-help         Print help, including all details and hidden\n                                options, and exit",
+  "  -V, --version               Print version and exit",
+  "  -r, --ruleint=Rule integer  Specify rule-int on command line",
+  "  -w, --width=width           Specify width",
+  "  -h, --height=height         Specify height",
+  "  -d, --delay=delay           Specify delay time",
+  "  Specify delay time, multiplied by 10ms",
+    0
+};
+
+static void
+init_help_array(void)
+{
+  gengetopt_args_info_help[0] = gengetopt_args_info_detailed_help[0];
+  gengetopt_args_info_help[1] = gengetopt_args_info_detailed_help[1];
+  gengetopt_args_info_help[2] = gengetopt_args_info_detailed_help[2];
+  gengetopt_args_info_help[3] = gengetopt_args_info_detailed_help[3];
+  gengetopt_args_info_help[4] = gengetopt_args_info_detailed_help[4];
+  gengetopt_args_info_help[5] = gengetopt_args_info_detailed_help[5];
+  gengetopt_args_info_help[6] = gengetopt_args_info_detailed_help[6];
+  gengetopt_args_info_help[7] = 0; 
+  
+}
+
+const char *gengetopt_args_info_help[8];
+
+typedef enum {ARG_NO
+  , ARG_INT
+} 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 char *
+gengetopt_strdup (const char *s);
+
+static
+void clear_given (struct gengetopt_args_info *args_info)
+{
+  args_info->help_given = 0 ;
+  args_info->detailed_help_given = 0 ;
+  args_info->version_given = 0 ;
+  args_info->ruleint_given = 0 ;
+  args_info->width_given = 0 ;
+  args_info->height_given = 0 ;
+  args_info->delay_given = 0 ;
+}
+
+static
+void clear_args (struct gengetopt_args_info *args_info)
+{
+  FIX_UNUSED (args_info);
+  args_info->ruleint_orig = NULL;
+  args_info->width_orig = NULL;
+  args_info->height_orig = NULL;
+  args_info->delay_orig = NULL;
+  
+}
+
+static
+void init_args_info(struct gengetopt_args_info *args_info)
+{
+
+  init_help_array(); 
+  args_info->help_help = gengetopt_args_info_detailed_help[0] ;
+  args_info->detailed_help_help = gengetopt_args_info_detailed_help[1] ;
+  args_info->version_help = gengetopt_args_info_detailed_help[2] ;
+  args_info->ruleint_help = gengetopt_args_info_detailed_help[3] ;
+  args_info->width_help = gengetopt_args_info_detailed_help[4] ;
+  args_info->height_help = gengetopt_args_info_detailed_help[5] ;
+  args_info->delay_help = gengetopt_args_info_detailed_help[6] ;
+  
+}
+
+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);
+
+  if (strlen(gengetopt_args_info_versiontext) > 0)
+    printf("\n%s\n", gengetopt_args_info_versiontext);
+}
+
+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_print_detailed_help (void)
+{
+  int i = 0;
+  print_help_common();
+  while (gengetopt_args_info_detailed_help[i])
+    printf("%s\n", gengetopt_args_info_detailed_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);
+}
+
+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)
+{
+
+  free_string_field (&(args_info->ruleint_orig));
+  free_string_field (&(args_info->width_orig));
+  free_string_field (&(args_info->height_orig));
+  free_string_field (&(args_info->delay_orig));
+  
+  
+
+  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->detailed_help_given)
+    write_into_file(outfile, "detailed-help", 0, 0 );
+  if (args_info->version_given)
+    write_into_file(outfile, "version", 0, 0 );
+  if (args_info->ruleint_given)
+    write_into_file(outfile, "ruleint", args_info->ruleint_orig, 0);
+  if (args_info->width_given)
+    write_into_file(outfile, "width", args_info->width_orig, 0);
+  if (args_info->height_given)
+    write_into_file(outfile, "height", args_info->height_orig, 0);
+  if (args_info->delay_given)
+    write_into_file(outfile, "delay", args_info->delay_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)
+{
+  FIX_UNUSED (args_info);
+  FIX_UNUSED (prog_name);
+  return EXIT_SUCCESS;
+}
+
+
+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;
+  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_INT:
+    if (val) *((int *)field) = strtol (val, &stop_char, 0);
+    break;
+  default:
+    break;
+  };
+
+  /* check numeric conversion */
+  switch(arg_type) {
+  case ARG_INT:
+    if (val && !(stop_char && *stop_char == '\0')) {
+      fprintf(stderr, "%s: invalid numeric value: %s\n", package_name, val);
+      return 1; /* failure */
+    }
+    break;
+  default:
+    ;
+  };
+
+  /* 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_occurred = 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, 0 },
+        { "detailed-help",      0, NULL, 0 },
+        { "version",    0, NULL, 'V' },
+        { "ruleint",    1, NULL, 'r' },
+        { "width",      1, NULL, 'w' },
+        { "height",     1, NULL, 'h' },
+        { "delay",      1, NULL, 'd' },
+        { 0,  0, 0, 0 }
+      };
+
+      c = getopt_long (argc, argv, "Vr:w:h:d:", long_options, &option_index);
+
+      if (c == -1) break;       /* Exit from `while (1)' loop.  */
+
+      switch (c)
+        {
+        case 'V':       /* Print version and exit.  */
+          cmdline_parser_print_version ();
+          cmdline_parser_free (&local_args_info);
+          exit (EXIT_SUCCESS);
+
+        case 'r':       /* Specify rule-int on command line.  */
+        
+        
+          if (update_arg( (void *)&(args_info->ruleint_arg), 
+               &(args_info->ruleint_orig), &(args_info->ruleint_given),
+              &(local_args_info.ruleint_given), optarg, 0, 0, ARG_INT,
+              check_ambiguity, override, 0, 0,
+              "ruleint", 'r',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'w':       /* Specify width.  */
+        
+        
+          if (update_arg( (void *)&(args_info->width_arg), 
+               &(args_info->width_orig), &(args_info->width_given),
+              &(local_args_info.width_given), optarg, 0, 0, ARG_INT,
+              check_ambiguity, override, 0, 0,
+              "width", 'w',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'h':       /* Specify height.  */
+        
+        
+          if (update_arg( (void *)&(args_info->height_arg), 
+               &(args_info->height_orig), &(args_info->height_given),
+              &(local_args_info.height_given), optarg, 0, 0, ARG_INT,
+              check_ambiguity, override, 0, 0,
+              "height", 'h',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'd':       /* Specify delay time.  */
+        
+        
+          if (update_arg( (void *)&(args_info->delay_arg), 
+               &(args_info->delay_orig), &(args_info->delay_given),
+              &(local_args_info.delay_given), optarg, 0, 0, ARG_INT,
+              check_ambiguity, override, 0, 0,
+              "delay", 'd',
+              additional_error))
+            goto failure;
+        
+          break;
+
+        case 0: /* Long option with no short option */
+          if (strcmp (long_options[option_index].name, "help") == 0) {
+            cmdline_parser_print_help ();
+            cmdline_parser_free (&local_args_info);
+            exit (EXIT_SUCCESS);
+          }
+
+          if (strcmp (long_options[option_index].name, "detailed-help") == 0) {
+            cmdline_parser_print_detailed_help ();
+            cmdline_parser_free (&local_args_info);
+            exit (EXIT_SUCCESS);
+          }
+
+        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 */
+
+
+
+
+  cmdline_parser_release (&local_args_info);
+
+  if ( error_occurred )
+    return (EXIT_FAILURE);
+
+  return 0;
+
+failure:
+  
+  cmdline_parser_release (&local_args_info);
+  return (EXIT_FAILURE);
+}
diff --git a/cmdline-life.h b/cmdline-life.h
new file mode 100644
index 0000000..b9d0629
--- /dev/null
+++ b/cmdline-life.h
@@ -0,0 +1,201 @@
+/** @file cmdline-life.h
+ *  @brief The header file for the command line option parser
+ *  generated by GNU Gengetopt version 2.22.6
+ *  http://www.gnu.org/software/gengetopt.
+ *  DO NOT modify this file, since it can be overwritten
+ *  @author GNU Gengetopt by Lorenzo Bettini */
+
+#ifndef CMDLINE_LIFE_H
+#define CMDLINE_LIFE_H
+
+/* If we use autoconf.  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h> /* for FILE */
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#ifndef CMDLINE_PARSER_PACKAGE
+/** @brief the program name (used for printing errors) */
+#define CMDLINE_PARSER_PACKAGE PACKAGE
+#endif
+
+#ifndef CMDLINE_PARSER_PACKAGE_NAME
+/** @brief the complete program name (used for help and version) */
+#ifdef PACKAGE_NAME
+#define CMDLINE_PARSER_PACKAGE_NAME PACKAGE_NAME
+#else
+#define CMDLINE_PARSER_PACKAGE_NAME PACKAGE
+#endif
+#endif
+
+#ifndef CMDLINE_PARSER_VERSION
+/** @brief the program version */
+#define CMDLINE_PARSER_VERSION VERSION
+#endif
+
+/** @brief Where the command line options are stored */
+struct gengetopt_args_info
+{
+  const char *help_help; /**< @brief Print help and exit help description.  */
+  const char *detailed_help_help; /**< @brief Print help, including all details and hidden options, and exit help description.  */
+  const char *version_help; /**< @brief Print version and exit help description.  */
+  int ruleint_arg;      /**< @brief Specify rule-int on command line.  */
+  char * ruleint_orig;  /**< @brief Specify rule-int on command line original value given at command line.  */
+  const char *ruleint_help; /**< @brief Specify rule-int on command line help description.  */
+  int width_arg;        /**< @brief Specify width.  */
+  char * width_orig;    /**< @brief Specify width original value given at command line.  */
+  const char *width_help; /**< @brief Specify width help description.  */
+  int height_arg;       /**< @brief Specify height.  */
+  char * height_orig;   /**< @brief Specify height original value given at command line.  */
+  const char *height_help; /**< @brief Specify height help description.  */
+  int delay_arg;        /**< @brief Specify delay time.  */
+  char * delay_orig;    /**< @brief Specify delay time original value given at command line.  */
+  const char *delay_help; /**< @brief Specify delay time help description.  */
+  
+  unsigned int help_given ;     /**< @brief Whether help was given.  */
+  unsigned int detailed_help_given ;    /**< @brief Whether detailed-help was given.  */
+  unsigned int version_given ;  /**< @brief Whether version was given.  */
+  unsigned int ruleint_given ;  /**< @brief Whether ruleint was given.  */
+  unsigned int width_given ;    /**< @brief Whether width was given.  */
+  unsigned int height_given ;   /**< @brief Whether height was given.  */
+  unsigned int delay_given ;    /**< @brief Whether delay was given.  */
+
+} ;
+
+/** @brief The additional parameters to pass to parser functions */
+struct cmdline_parser_params
+{
+  int override; /**< @brief whether to override possibly already present options (default 0) */
+  int initialize; /**< @brief whether to initialize the option structure gengetopt_args_info (default 1) */
+  int check_required; /**< @brief whether to check that all required options were provided (default 1) */
+  int check_ambiguity; /**< @brief whether to check for options already specified in the option structure gengetopt_args_info (default 0) */
+  int print_errors; /**< @brief whether getopt_long should print an error message for a bad option (default 1) */
+} ;
+
+/** @brief the purpose string of the program */
+extern const char *gengetopt_args_info_purpose;
+/** @brief the usage string of the program */
+extern const char *gengetopt_args_info_usage;
+/** @brief the description string of the program */
+extern const char *gengetopt_args_info_description;
+/** @brief all the lines making the help output */
+extern const char *gengetopt_args_info_help[];
+/** @brief all the lines making the detailed help output (including hidden options and details) */
+extern const char *gengetopt_args_info_detailed_help[];
+
+/**
+ * The command line parser
+ * @param argc the number of command line options
+ * @param argv the command line options
+ * @param args_info the structure where option information will be stored
+ * @return 0 if everything went fine, NON 0 if an error took place
+ */
+int cmdline_parser (int argc, char **argv,
+  struct gengetopt_args_info *args_info);
+
+/**
+ * The command line parser (version with additional parameters - deprecated)
+ * @param argc the number of command line options
+ * @param argv the command line options
+ * @param args_info the structure where option information will be stored
+ * @param override whether to override possibly already present options
+ * @param initialize whether to initialize the option structure my_args_info
+ * @param check_required whether to check that all required options were provided
+ * @return 0 if everything went fine, NON 0 if an error took place
+ * @deprecated use cmdline_parser_ext() instead
+ */
+int cmdline_parser2 (int argc, char **argv,
+  struct gengetopt_args_info *args_info,
+  int override, int initialize, int check_required);
+
+/**
+ * The command line parser (version with additional parameters)
+ * @param argc the number of command line options
+ * @param argv the command line options
+ * @param args_info the structure where option information will be stored
+ * @param params additional parameters for the parser
+ * @return 0 if everything went fine, NON 0 if an error took place
+ */
+int cmdline_parser_ext (int argc, char **argv,
+  struct gengetopt_args_info *args_info,
+  struct cmdline_parser_params *params);
+
+/**
+ * Save the contents of the option struct into an already open FILE stream.
+ * @param outfile the stream where to dump options
+ * @param args_info the option struct to dump
+ * @return 0 if everything went fine, NON 0 if an error took place
+ */
+int cmdline_parser_dump(FILE *outfile,
+  struct gengetopt_args_info *args_info);
+
+/**
+ * Save the contents of the option struct into a (text) file.
+ * This file can be read by the config file parser (if generated by gengetopt)
+ * @param filename the file where to save
+ * @param args_info the option struct to save
+ * @return 0 if everything went fine, NON 0 if an error took place
+ */
+int cmdline_parser_file_save(const char *filename,
+  struct gengetopt_args_info *args_info);
+
+/**
+ * Print the help
+ */
+void cmdline_parser_print_help(void);
+/**
+ * Print the detailed help (including hidden options and details)
+ */
+void cmdline_parser_print_detailed_help(void);
+/**
+ * Print the version
+ */
+void cmdline_parser_print_version(void);
+
+/**
+ * Initializes all the fields a cmdline_parser_params structure 
+ * to their default values
+ * @param params the structure to initialize
+ */
+void cmdline_parser_params_init(struct cmdline_parser_params *params);
+
+/**
+ * Allocates dynamically a cmdline_parser_params structure and initializes
+ * all its fields to their default values
+ * @return the created and initialized cmdline_parser_params structure
+ */
+struct cmdline_parser_params *cmdline_parser_params_create(void);
+
+/**
+ * Initializes the passed gengetopt_args_info structure's fields
+ * (also set default values for options that have a default)
+ * @param args_info the structure to initialize
+ */
+void cmdline_parser_init (struct gengetopt_args_info *args_info);
+/**
+ * Deallocates the string fields of the gengetopt_args_info structure
+ * (but does not deallocate the structure itself)
+ * @param args_info the structure to deallocate
+ */
+void cmdline_parser_free (struct gengetopt_args_info *args_info);
+
+/**
+ * Checks that all the required options were specified
+ * @param args_info the structure to check
+ * @param prog_name the name of the program that will be used to print
+ *   possible errors
+ * @return
+ */
+int cmdline_parser_required (struct gengetopt_args_info *args_info,
+  const char *prog_name);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* CMDLINE_LIFE_H */
diff --git a/life.c b/life.c
index 9af8c3f..1919046 100644
--- a/life.c
+++ b/life.c
@@ -15,11 +15,11 @@ char * update_map (char * base_map, const int width, const int height, char live
     y = (i - x)/width;
     /*
       Where i is the current cell:
-       A1 | A2 | A3
+      A1 | A2 | A3
       ----|----|----
-       B1 | i  | B3
+      B1 | i  | B3
       ----|----|----
-       C1 | C2 | C3
+      C1 | C2 | C3
     */
     if (x > 0) {
       if (base_map[i-1] == livecell) surround++; // B1
@@ -63,16 +63,20 @@ char * update_map (char * base_map, const int width, const int height, char live
 
 int main (int argc, char * argv[]) {
   unsigned int RULE = 0;
-  int rule_size = 0;
-  char * rulestr = NULL;
-  if (argc == 1) {
-  printf("Rule Integer: ");
-  getline(&rulestr, (size_t *) &rule_size, stdin);
-  } else if (argc > 1) rulestr = argv[1];
-  RULE = atoi(rulestr);
-  if (RULE > 262143) {
-    fprintf(stderr, "Invalid integer\n");
-    exit(EXIT_FAILURE);
+  struct gengetopt_args_info args_info;
+  if (cmdline_parser(argc, argv, &args_info) != 0) exit(EXIT_FAILURE);
+  if (args_info.ruleint_given) {
+    RULE = args_info.ruleint_arg;
+  } else {
+    int rule_size = 0;
+    char * rulestr = NULL;
+    printf("Rule Integer: ");
+    getline(&rulestr, (size_t *) &rule_size, stdin);
+    RULE = atoi(rulestr);
+    if (RULE > 262143) {
+      fprintf(stderr, "Invalid integer\n");
+      exit(EXIT_FAILURE);
+    }
   }
   srand(time(NULL));
   int ch = 0;
@@ -82,11 +86,10 @@ int main (int argc, char * argv[]) {
   unsigned int delay = 0; // Counts up to 10 so display is slow
   int livecell = '#';
   int deadcell = '.';
-  if (argc > 3) {
-    width = atoi(argv[2]);
-    height = atoi(argv[3]);
-  }
-  if (argc > 4) delay = atoi(argv[4]);
+  if (args_info.width_given) width = args_info.width_arg;
+  if (args_info.height_given) height = args_info.height_arg;
+  if (args_info.delay_given) delay = args_info.delay_arg;
+  cmdline_parser_free(&args_info);
   char * map = NULL;
   map = malloc((height * width)+1);
   memset(map, 0, height * width + 1);
diff --git a/life.ggo b/life.ggo
new file mode 100644
index 0000000..c51fa69
--- /dev/null
+++ b/life.ggo
@@ -0,0 +1,5 @@
+args "--file-name=cmdline-life"
+option "ruleint" r "Specify rule-int on command line" typestr="Rule integer" int optional
+option "width" w "Specify width" typestr="width" int optional
+option "height" h "Specify height" typestr="height" int optional
+option "delay" d "Specify delay time" details="Specify delay time, multiplied by 10ms" typestr="delay" int optional
diff --git a/life.h b/life.h
index 905fe6a..26f68ad 100644
--- a/life.h
+++ b/life.h
@@ -7,3 +7,6 @@
 
 // Module Libraries
 #include <ncurses.h>
+
+// Project Libraries
+#include <cmdline-life.h>