Removed popt code/dependency

git-svn-id: https://svn.musicpd.org/ncmpc/trunk@1761 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 196 insertions, 107 deletions

diff --git a/src/options.c b/src/options.c
index 0aa812204..3751aae42 100644
--- a/src/options.c
+++ b/src/options.c
@@ -20,134 +20,229 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#include <unistd.h>
 #include <string.h>
-#include <ncurses.h>
 #include <glib.h>
-#include <popt.h>
 
 #include "config.h"
 #include "ncmpc.h"
-#include "options.h"
-#include "command.h"
 #include "support.h"
+#include "options.h"
 
-options_t options;
+#define MAX_LONGOPT_LENGTH 32
+
+typedef struct
+{
+  int  shortopt;
+  char *longopt;
+  char *argument;
+  char *descrition;
+} arg_opt_t;
+
+
+typedef void (*option_callback_fn_t)   (int c, char *arg);
 
-static char *mpd_host     = NULL;
-static char *mpd_password = NULL;
-static char *config_file  = NULL;
-static char *key_file     = NULL;
 
-static struct poptOption optionsTable[] = {
+options_t options;
+ 
+static arg_opt_t option_table[] = {
+  { '?', "help",     NULL,   "Show this help message" },
+  { 'V', "version",  NULL,   "Display version information" },
+  { 'c', "colors",   NULL,   "Enable colors" },
+  { 'C', "no-colors", NULL,  "Disable colors" },
+  { 'e', "exit",     NULL,   "Exit on connection errors" },
+  { 'p', "port",  "PORT", "Connect to server on port [" DEFAULT_PORT_STR "]" },
+  { 'h', "host",  "HOST", "Connect to server on host [" DEFAULT_HOST "]" },
+  { 'P', "password","PASSWORD", "Connect with password" },
+  { 'f', "config",  "FILE",     "Read configuration from file" },
+  { 'k', "key-file","FILE",     "Read configuration from file" },
 #ifdef DEBUG
-  { "debug",        'D', 0, 0, 'D', "Enable debug output." },
+  { 'D', "debug",   NULL,   "Enable debug output on stderr" },
 #endif
-  { "version",      'V', 0, 0, 'V', "Display version information." },
-  { "colors",       'c', 0, 0, 'c', "Enable colors." },
-  { "no-colors",    'C', 0, 0, 'C', "Disable colors." },
-  { "exit",         'e', 0, 0, 'e', "Exit on connection errors." },
-  { "port",         'p', POPT_ARG_INT, &options.port, 0, 
-    "Connect to server on port [" DEFAULT_PORT_STR "].", "PORT" },
-  { "host",         'h', POPT_ARG_STRING, &mpd_host, 0, 
-    "Connect to server [" DEFAULT_HOST "].", "HOSTNAME" },
-  { "password",     'P', POPT_ARG_STRING, &mpd_password, 0, 
-    "Connect with password.", "PASSWORD" },
-  { "config",       'f', POPT_ARG_STRING, &config_file, 0, 
-    "Read config from FILE." , "FILE" },
-  { "key-file",     'k', POPT_ARG_STRING, &key_file, 0, 
-    "Read key bindings from FILE." , "FILE" },
-
-  POPT_AUTOHELP
-  { NULL, 0, 0, NULL, 0 }
+  { 0, NULL, NULL, NULL },
 };
 
-static void
-usage(poptContext optCon, int exitcode, char *error, char *addl) 
+static arg_opt_t *
+lookup_option(int s, char *l)
 {
-  poptPrintUsage(optCon, stderr, 0);
-  if (error) 
-    fprintf(stderr, "%s: %s0", error, addl);
-  exit(exitcode);
-}
+  int i;
 
-options_t *
-options_parse( int argc, const char **argv)
-{
-  int c;
-  poptContext optCon;   /* context for parsing command-line options */
-
-  mpd_host = NULL;
-  mpd_password = NULL;
-  config_file = NULL;
-  key_file = NULL;
-  optCon = poptGetContext(NULL, argc, argv, optionsTable, 0);
-  while ((c = poptGetNextOpt(optCon)) >= 0) 
-    {
-      switch (c) 
-	{
-#ifdef DEBUG
-	case 'D':
-	  options.debug = 1;
-	  break;
-#endif
-	case 'c':
-	  options.enable_colors = 1;
-	  break;
-	case 'C':
-	  options.enable_colors = 0;
-	  break;
-	case 'V':
-	  printf("Version " VERSION "\n");
-	  exit(EXIT_SUCCESS);
-	case 'e':
-	  options.reconnect = 0;
-	  break;
-	default:
-	  fprintf(stderr, "%s: %s\n",
-		  poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
-		  poptStrerror(c));
-	  poptFreeContext(optCon);
-	  exit(EXIT_FAILURE);
-	  break;
-	}
-    }
-  if (c < -1) 
+  i=0;
+  while( option_table[i].descrition )
     {
-      /* an error occurred during option processing */
-      fprintf(stderr, "%s: %s\n",
-	      poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
-	      poptStrerror(c));
-      poptFreeContext(optCon);
-      exit(EXIT_FAILURE);
+      if( l && strcmp(l, option_table[i].longopt) == 0 )
+	return &option_table[i];;
+      if( s && s==option_table[i].shortopt )
+	return &option_table[i];;
+      i++;
     }
+  return NULL;
+}
 
-  if( mpd_host )
-    {
-      g_free(options.host);
-      options.host = mpd_host;
-    }
-  if( mpd_password )
-    {
-      g_free(options.password);
-      options.password = mpd_password;
-    }
-  if( config_file )
+static void 
+display_help(void)
+{
+  int i = 0;
+
+  printf("Usage: %s [OPTION]...\n", PACKAGE);
+  while( option_table[i].descrition )
     {
-      g_free(options.config_file);
-      options.config_file = config_file;
+      char tmp[MAX_LONGOPT_LENGTH];
+
+      if( option_table[i].argument )
+	g_snprintf(tmp, MAX_LONGOPT_LENGTH, "%s=%s", 
+		   option_table[i].longopt, 
+		   option_table[i].argument);
+      else
+	g_strlcpy(tmp, option_table[i].longopt, 64);
+
+      printf("  -%c, --%-20s %s\n", 
+	     option_table[i].shortopt, 
+	     tmp,
+	     option_table[i].descrition);
+      i++;
     }
-  if( key_file )
+}
+
+static void 
+handle_option(int c, char *arg)
+{
+  switch(c)
     {
-      g_free(options.key_file);
-      options.key_file = key_file;
+    case '?': /* --help */
+      display_help();
+      exit(EXIT_SUCCESS);
+    case 'V': /* --version */
+      printf("Version %s\n", VERSION);
+      exit(EXIT_SUCCESS);
+    case 'c': /* --colors */
+      options.enable_colors = TRUE;
+      break;
+    case 'C': /* --no-colors */
+      options.enable_colors = FALSE;
+      break;
+    case 'e': /* --exit */
+      options.reconnect = FALSE;
+      break;
+    case 'p': /* --port */
+      options.port = atoi(arg);
+      break;
+    case 'h': /* --host */
+      if( options.host )
+	g_free(options.host);
+      options.host = g_strdup(arg);
+      break;
+    case 'P': /* --password */
+      if( options.password )
+	g_free(options.password);
+      options.password = locale_to_utf8(arg);
+      break;
+    case 'f': /* --config */
+      if( options.config_file )
+	g_free(options.config_file);
+      options.config_file = g_strdup(arg);
+      break;
+    case 'k': /* --key-file */
+      if( options.key_file )
+	g_free(options.key_file);
+      options.key_file = g_strdup(arg);
+      break;
+    case 'D': /* --debug */
+      options.debug = TRUE;
+      break;
+    default:
+      fprintf(stderr,"Unknown Option %c = %s\n", c, arg);
+      break;
     }
+}
 
-  poptFreeContext(optCon);
+options_t *
+options_get(void)
+{
   return &options;
 }
 
 options_t *
+options_parse(int argc, const char *argv[])
+{
+  int i;
+  arg_opt_t *opt = NULL;
+  option_callback_fn_t option_cb = handle_option;
+
+  i=1;
+  while( i<argc )
+    {
+      char *arg = (char *) argv[i];
+      size_t len=strlen(arg);
+      
+      /* check for a long option */
+      if( g_str_has_prefix(arg, "--") )
+	{
+	  char *value;
+
+	  /* retreive a option argument */
+	  if( (value=g_strrstr(arg+2, "=")) )
+	    {
+	      *value = '\0';
+	      value++;
+	    }
+	  /* check if the option exists */
+	  if( (opt=lookup_option(0, arg+2)) == NULL )
+	    {
+	      fprintf(stderr, PACKAGE ": invalid option %s\n", arg);
+	      exit(EXIT_FAILURE);
+	    }
+	  /* abort if we got an argument to the option and dont want one */
+	  if( value && opt->argument==NULL )
+	    {
+	      fprintf(stderr, PACKAGE ": invalid option argument %s=%s\n", 
+		      arg, value);
+	      exit(EXIT_FAILURE);
+	    }
+	  /* execute option callback */
+	  if( value || opt->argument==NULL )
+	    {
+	      option_cb (opt->shortopt, value);
+	      opt = NULL;
+	    }
+	}
+      /* check for a short option */
+      else if( len==2 && g_str_has_prefix(arg, "-") )
+	{
+	  /* check if the option exists */
+	  if( (opt=lookup_option(arg[1], NULL))==NULL )
+	    {
+	      fprintf(stderr, PACKAGE ": invalid option %s\n",arg);
+	      exit(EXIT_FAILURE);
+	    }
+	  /* if no option argument is needed execute callback */
+	  if( opt->argument==NULL )
+	    {
+	      option_cb (opt->shortopt, NULL);
+	      opt = NULL;
+	    }
+	}
+      else
+	{
+	  /* is this a option argument? */
+	  if( opt && opt->argument)
+	    {
+	      option_cb (opt->shortopt, arg);
+	    }
+	  else 
+	    {
+	      fprintf(stderr, PACKAGE ": bad argument: %s\n", arg);
+	      exit(EXIT_FAILURE);
+	    }
+	  opt = NULL;
+	}
+
+      i++;
+    }
+  return  &options;
+}
+
+
+options_t *
 options_init( void )
 {
   const char *value;
@@ -185,9 +280,3 @@ options_init( void )
   return &options;
 }
 
-
-options_t *
-options_get(void)
-{
-  return &options;
-}