From f55a67b3f882641abe5a9b14b045d7ce71964af7 Mon Sep 17 00:00:00 2001
From: Kalle Wallin <kaw@linux.se>
Date: Sat, 5 Jun 2004 11:21:43 +0000
Subject: Changed directory layout (for future use of gettext)

git-svn-id: https://svn.musicpd.org/ncmpc/trunk@1342 09075e82-0dd4-0310-85a5-a0d7c8717e4f
---
 src/conf.c | 594 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 594 insertions(+)
 create mode 100644 src/conf.c

(limited to 'src/conf.c')

diff --git a/src/conf.c b/src/conf.c
new file mode 100644
index 000000000..06866c13e
--- /dev/null
+++ b/src/conf.c
@@ -0,0 +1,594 @@
+/* 
+ * (c) 2004 by Kalle Wallin (kaw@linux.se)
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <ctype.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <glib.h>
+#include <ncurses.h>
+
+#include "config.h"
+#include "options.h"
+#include "support.h"
+#include "command.h"
+#include "colors.h"
+#include "conf.h"
+
+#ifdef DEBUG
+#define D(x) x
+#else
+#define D(x)
+#endif
+
+#define ENABLE_OLD_COLOR_SYNTAX
+
+#define MAX_LINE_LENGTH 1024
+#define COMMENT_TOKEN   '#'
+
+/* configuration field names */
+#define CONF_ENABLE_COLORS           "enable_colors"
+#define CONF_AUTO_CENTER             "auto_center"
+#define CONF_WIDE_CURSOR             "wide_cursor"
+#define CONF_KEY_DEFINITION          "key"
+#define CONF_COLOR                   "color"
+#define CONF_COLOR_DEFINITION        "colordef"
+
+/* Deprecated - configuration field names */
+#define CONF_COLOR_BACKGROUND        "background_color"
+#define CONF_COLOR_TITLE             "title_color"
+#define CONF_COLOR_LINE              "line_color"
+#define CONF_COLOR_LIST              "list_color"
+#define CONF_COLOR_PROGRESS          "progress_color"
+#define CONF_COLOR_STATUS            "status_color"
+#define CONF_COLOR_ALERT             "alert_color"
+
+
+typedef enum {
+  KEY_PARSER_UNKNOWN,
+  KEY_PARSER_CHAR,
+  KEY_PARSER_DEC,
+  KEY_PARSER_HEX,
+  KEY_PARSER_DONE
+} key_parser_state_t;
+
+static int
+str2bool(char *str)
+{
+  if( !strcasecmp(str,"no")  || !strcasecmp(str,"false") || 
+      !strcasecmp(str,"off") || !strcasecmp(str,"0") )
+    return 0;
+  return 1;
+}
+
+static int
+parse_key_value(char *str, size_t len, char **end)
+{
+  int i, value;
+  key_parser_state_t state;
+
+  i=0;
+  value=0;
+  state=KEY_PARSER_UNKNOWN;
+  *end = str;
+
+  while( i<len && state!=KEY_PARSER_DONE )
+    {
+      int next = 0;
+      int c = str[i];
+
+      if( i+1<len )
+	next = str[i+1];
+
+      switch(state)
+	{
+	case KEY_PARSER_UNKNOWN:
+	  if( c=='\'' )
+	    state = KEY_PARSER_CHAR;
+	  else if( c=='0' && next=='x' )
+	    state = KEY_PARSER_HEX;
+	  else if( isdigit(c) )
+	    state = KEY_PARSER_DEC;
+	  else {
+	    fprintf(stderr, "Error: Unsupported key definition - %s\n", str);
+	    return -1;
+	  }
+	  break;
+	case KEY_PARSER_CHAR:
+	  if( next!='\'' )
+	    {
+	      fprintf(stderr, "Error: Unsupported key definition - %s\n", str);
+	      return -1;
+	    }
+	  value = c;
+	  *end = str+i+2;
+	  state = KEY_PARSER_DONE;
+	  break;
+	case KEY_PARSER_DEC:
+	  value = (int) strtol(str+(i-1), end, 10);
+	  state = KEY_PARSER_DONE;
+	  break;
+	case KEY_PARSER_HEX:
+	  if( !isdigit(next) )
+	    {
+	      fprintf(stderr, "Error: Digit expexted after 0x - %s\n", str);
+	      return -1;
+	    }
+	  value = (int) strtol(str+(i+1), end, 16);
+	  state = KEY_PARSER_DONE;
+	  break;
+	case KEY_PARSER_DONE:
+	  break;
+	}
+      i++;
+    }
+
+  if( *end> str+len )
+    *end = str+len;
+
+  return value;
+}
+
+static int
+parse_key_definition(char *str)
+{
+  char buf[MAX_LINE_LENGTH];
+  char *p, *end;
+  size_t len = strlen(str);
+  int i,j,key;
+  int keys[MAX_COMMAND_KEYS];
+  command_t cmd;
+
+  /* get the command name */
+  i=0;
+  j=0;
+  memset(buf, 0, MAX_LINE_LENGTH);
+  while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
+    buf[j++] = str[i++];
+  if( (cmd=get_key_command_from_name(buf)) == CMD_NONE )
+    {
+      fprintf(stderr, "Error: Unknown key command %s\n", buf);
+      return -1;
+    }
+
+  /* skip whitespace */
+  while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
+    i++;
+
+  /* get the value part */
+  memset(buf, 0, MAX_LINE_LENGTH);
+  strncpy(buf, str+i, len-i);
+  len = strlen(buf);
+  if( len==0 )
+    {
+      fprintf(stderr,"Error: Incomplete key definition - %s\n", str);
+      return -1;
+    }
+
+  /* parse key values */
+  i = 0;
+  key = 0;
+  len = strlen(buf);
+  p = buf;
+  end = buf+len;
+  memset(keys, 0, sizeof(int)*MAX_COMMAND_KEYS);
+  while( i<MAX_COMMAND_KEYS && p<end && (key=parse_key_value(p,len+1,&p))>=0 )
+    {
+      keys[i++] = key;
+      while( p<end && (*p==',' || *p==' ' || *p=='\t') )
+	p++;
+      len = strlen(p);
+    } 
+  if( key<0 )
+    {
+      fprintf(stderr,"Error: Bad key definition - %s\n", str);
+      return -1;
+    }
+
+  return assign_keys(cmd, keys);
+}
+
+static int
+parse_color(char *str)
+{
+  char *name = str;
+  char *value = NULL;
+  int len,i;
+
+  i=0;
+  len=strlen(str);
+  /* get the color name */
+  while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
+    i++;
+  
+  /* skip whitespace */
+  while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
+    {
+      str[i]='\0';
+      i++;
+    } 
+  
+  if( i<len )
+    value = str+i;
+
+  return colors_assign(name, value);
+}
+
+
+static int
+parse_color_definition(char *str)
+{
+  char buf[MAX_LINE_LENGTH];
+  char *p, *end, *name;
+  size_t len = strlen(str);
+  int i,j,value;
+  short color, rgb[3];
+
+  /* get the command name */
+  i=0;
+  j=0;
+  memset(buf, 0, MAX_LINE_LENGTH);
+  while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
+    buf[j++] = str[i++];
+  color=colors_str2color(buf);
+  if( color<0 )
+    {
+      fprintf(stderr, "Error: Bad color %s [%d]\n", buf, color);
+      return -1;
+    }
+  name = g_strdup(buf);
+
+  /* skip whitespace */
+  while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
+    i++;
+
+  /* get the value part */
+  memset(buf, 0, MAX_LINE_LENGTH);
+  strncpy(buf, str+i, len-i);
+  len = strlen(buf);
+  if( len==0 )
+    {
+      fprintf(stderr,"Error: Incomplete color definition - %s\n", str);
+      g_free(name);
+      return -1;
+    }
+
+  /* parse r,g.b values with the key definition parser */
+  i = 0;
+  value = 0;
+  len = strlen(buf);
+  p = buf;
+  end = buf+len;
+  memset(rgb, 0, sizeof(short)*3);
+  while( i<3 && p<end && (value=parse_key_value(p,len+1,&p))>=0 )
+    {
+      rgb[i++] = value;
+      while( p<end && (*p==',' || *p==' ' || *p=='\t') )
+	p++;
+      len = strlen(p);
+    } 
+  if( value<0 || i!=3)
+    {
+      fprintf(stderr,"Error: Bad color definition - %s\n", str);
+      g_free(name);
+      return -1;
+    }
+  value = colors_define(name, rgb[0], rgb[1], rgb[2]);
+  g_free(name);
+  return value;
+}
+
+
+static int
+read_rc_file(char *filename, options_t *options)
+{
+  int fd;
+  int quit  = 0;
+  int free_filename = 0;
+
+  if( filename==NULL )
+    return -1;
+
+  D(printf("Reading configuration file %s\n", filename));
+  if( (fd=open(filename,O_RDONLY)) <0 )
+    {
+      perror(filename);
+      if( free_filename )
+	g_free(filename);
+      return -1;
+    }
+
+  while( !quit )
+    {
+      int i,j;
+      int len;
+      int match_found;
+      char line[MAX_LINE_LENGTH];
+      char name[MAX_LINE_LENGTH];
+      char value[MAX_LINE_LENGTH];
+
+      line[0]  = '\0';
+      value[0] = '\0';
+
+      i = 0;
+      /* read a line ending with '\n' */
+      do {
+	len = read( fd, &line[i], 1 );
+	if( len == 1 )
+	  i++;
+	else
+	  quit = 1;
+      } while( !quit && i<MAX_LINE_LENGTH && line[i-1]!='\n' );
+      
+     
+      /* remove trailing whitespace */
+      line[i] = '\0';
+      i--;
+      while( i>=0 && IS_WHITESPACE(line[i]) )
+	{
+	  line[i] = '\0';
+	  i--;
+	}     
+      len = i+1;
+
+      if( len>0 )
+	{
+	  i = 0;
+	  /* skip whitespace */
+	  while( i<len && IS_WHITESPACE(line[i]) )
+	    i++;
+	  
+	  /* continue if this line is not a comment */
+	  if( line[i] != COMMENT_TOKEN )
+	    {
+	      /* get the name part */
+	      j=0;
+	      while( i<len && line[i]!='=' && !IS_WHITESPACE(line[i]) )
+		{
+		  name[j++] = line[i++];
+		}
+	      name[j] = '\0';
+	      
+	      /* skip '=' and whitespace */
+	      while( i<len && (line[i]=='=' || IS_WHITESPACE(line[i])) )
+		i++;
+	      
+	      /* get the value part */
+	      j=0;
+	      while( i<len )
+		{
+		  value[j++] = line[i++];
+		}
+	      value[j] = '\0';
+	      
+	      match_found = 1;
+
+	      /* key definition */
+	      if( !strcasecmp(CONF_KEY_DEFINITION, name) )
+		{
+		  parse_key_definition(value);
+		}
+	      /* enable colors */
+	      else if( !strcasecmp(CONF_ENABLE_COLORS, name) )
+		{
+		  options->enable_colors = str2bool(value);
+		}
+	      /* auto center */
+	      else if( !strcasecmp(CONF_AUTO_CENTER, name) )
+		{
+		  options->auto_center = str2bool(value);
+		}
+	      /* color assignment */
+	      else if( !strcasecmp(CONF_COLOR, name) )
+		{
+		  parse_color(value);
+		}
+#ifdef ENABLE_OLD_COLOR_SYNTAX
+	      /* background color */
+	      else if( !strcasecmp(CONF_COLOR_BACKGROUND, name) )
+		{
+		  fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
+		  colors_assign("background", value);
+		}
+	      /* color - top (title) window */
+	      else if( !strcasecmp(CONF_COLOR_TITLE, name) )
+		{
+		  fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
+		  colors_assign("title", value);
+		  colors_assign("title2", value);
+		}
+	      /* color - line (title) window */
+	      else if( !strcasecmp(CONF_COLOR_LINE, name) )
+		{
+		  fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
+		  colors_assign("line", value);
+		  colors_assign("line2", value);
+		}
+	      /* color - list window */
+	      else if( !strcasecmp(CONF_COLOR_LIST, name) )
+		{
+		  fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
+		  colors_assign("list", value);
+		}
+	      /* color - progress bar */
+	      else if( !strcasecmp(CONF_COLOR_PROGRESS, name) )
+		{
+		  fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
+		  colors_assign("progressbar", value);
+		}
+	      /* color - status window */
+	      else if( !strcasecmp(CONF_COLOR_STATUS, name) )
+		{
+		  fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
+		  colors_assign("status", value);
+		  colors_assign("status2", value);
+		}
+	      /* color - alerts */
+	      else if( !strcasecmp(CONF_COLOR_ALERT, name) )
+		{
+		  fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
+		  colors_assign("alert", value);
+		}
+#endif
+	      /* wide cursor */
+	      else if( !strcasecmp(CONF_WIDE_CURSOR, name) )
+		{
+		  options->wide_cursor = str2bool(value);
+		}
+	      /* color definition */
+	      else if( !strcasecmp(CONF_COLOR_DEFINITION, name) )
+		{
+		  parse_color_definition(value);
+		}
+	      else
+		{
+		  match_found = 0;
+		}
+	      
+
+	      if( !match_found )
+		fprintf(stderr, 
+			"Unknown configuration parameter: %s\n", 
+			name);
+#ifdef DEBUG
+	      printf( "  %s = %s %s\n", 
+		      name, 
+		      value,
+		      match_found ? "" : "- UNKNOWN SETTING!" );
+#endif
+
+	    }
+	}	  
+    }
+
+  D(printf( "--\n\n" ));
+
+  if( free_filename )
+    g_free(filename);
+ 
+  return 0;
+}
+
+int
+check_user_conf_dir(void)
+{
+  int retval;
+  char *dirname = g_build_filename(g_get_home_dir(), "." PACKAGE, NULL);
+  
+  if( g_file_test(dirname, G_FILE_TEST_IS_DIR) )
+    {
+      g_free(dirname);
+      return 0;
+    }
+  retval = mkdir(dirname, 0755);
+  g_free(dirname);
+  return retval;
+}
+
+char *
+get_user_key_binding_filename(void)
+{
+  return g_build_filename(g_get_home_dir(), "." PACKAGE, "keys", NULL);
+}
+
+
+int
+read_configuration(options_t *options)
+{
+  char *filename = NULL;
+
+  /* check for command line configuration file */
+  if( options->config_file )
+    filename = g_strdup(options->config_file);
+
+  /* check for user configuration ~/.ncmpc/config */
+  if( filename == NULL )
+    {
+      filename = g_build_filename(g_get_home_dir(), 
+				  "." PACKAGE, "config", NULL);
+      if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
+	{
+	  g_free(filename);
+	  filename = NULL;
+	}
+    }
+
+  /* check for  global configuration SYSCONFDIR/ncmpc/config */
+  if( filename == NULL )
+    {
+      filename = g_build_filename(SYSCONFDIR, PACKAGE, "config", NULL);
+      if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
+	{
+	  g_free(filename);
+	  filename = NULL;
+	}
+    }
+
+  /* load configuration */
+  if( filename )
+    {
+      read_rc_file(filename, options);
+      g_free(filename);
+      filename = NULL;
+    }
+
+  /* check for command line key binding file */
+  if( options->key_file )
+    filename = g_strdup(options->key_file);
+
+  /* check for  user key bindings ~/.ncmpc/keys */
+  if( filename == NULL )
+    {
+      filename = get_user_key_binding_filename();
+      if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
+	{
+	  g_free(filename);
+	  filename = NULL;
+	}
+    }
+
+  /* check for  global key bindings SYSCONFDIR/ncmpc/keys */
+  if( filename == NULL )
+    {
+      filename = g_build_filename(SYSCONFDIR, PACKAGE, "keys", NULL);
+      if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
+	{
+	  g_free(filename);
+	  filename = NULL;
+	}
+    }
+
+  /* load key bindings */
+  if( filename )
+    {
+      read_rc_file(filename, options);
+      g_free(filename);
+      filename = NULL;
+    }
+
+  return 0;
+}
+
+
+
-- 
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