Added support for a configuration file ~/.ncmpcrc and color support.

git-svn-id: https://svn.musicpd.org/ncmpc/trunk@473 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 263 insertions, 0 deletions

diff --git a/conf.c b/conf.c
new file mode 100644
index 000000000..1ea1fd971
--- /dev/null
+++ b/conf.c
@@ -0,0 +1,263 @@
+#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 <ncurses.h>
+
+#include "config.h"
+#include "options.h"
+#include "support.h"
+#include "conf.h"
+
+#ifdef DEBUG
+#define D(x) x
+#else
+#define D(x)
+#endif
+
+#define RCFILE "." PACKAGE "rc"
+
+#define MAX_LINE_LENGTH 1024
+#define COMMENT_TOKEN   '#'
+
+/* configuration field names */
+#define CONF_ENABLE_COLORS           "enable_colors"
+#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"
+
+
+#define IS_WHITESPACE(c) (c==' ' || c=='\t' || c=='\r' || c=='\n')
+
+
+static int
+str2bool(char *str)
+{
+  if( !strcasecmp(str,"no")  || !strcasecmp(str,"false") || 
+      !strcasecmp(str,"off") || !strcasecmp(str,"0") )
+    return 0;
+  return 1;
+}
+
+static int
+str2color(char *str)
+{
+  if( !strcasecmp(str,"black") )
+    return COLOR_BLACK;
+  else if( !strcasecmp(str,"red") )
+    return COLOR_RED;
+  else if( !strcasecmp(str,"green") )
+    return COLOR_GREEN;
+  else if( !strcasecmp(str,"yellow") )
+    return COLOR_YELLOW;
+  else if( !strcasecmp(str,"blue") )
+    return COLOR_BLUE;
+  else if( !strcasecmp(str,"magenta") )
+    return COLOR_MAGENTA;
+  else if( !strcasecmp(str,"cyan") )
+    return COLOR_CYAN;
+  else if( !strcasecmp(str,"white") )
+    return COLOR_WHITE;
+#if 0
+   else if( !strcasecmp(str,"grey") ) 
+     return COLOR_BLACK | A_BOLD;
+  else if( !strcasecmp(str,"brightred") )
+    return COLOR_RED | A_BOLD;
+  else if( !strcasecmp(str,"brightgreen") )
+    return COLOR_GREEN | A_BOLD;
+  else if( !strcasecmp(str,"brightyellow") )
+    return COLOR_YELLOW | A_BOLD;
+  else if( !strcasecmp(str,"brightblue") )
+    return COLOR_BLUE | A_BOLD;
+  else if( !strcasecmp(str,"brightmagenta") )
+    return COLOR_MAGENTA | A_BOLD;
+  else if( !strcasecmp(str,"brightcyan") )
+    return COLOR_CYAN | A_BOLD;
+  else if( !strcasecmp(str,"brightwhite") )
+    return COLOR_WHITE | A_BOLD;
+#endif
+  fprintf(stderr,"Warning: unknown color %s\n", str);
+  return -1;
+}
+
+int
+read_rc_file(char *filename, options_t *options)
+{
+  int fd;
+  int quit  = 0;
+  int color = -1;
+  int free_filename = 0;
+
+  if( filename==NULL )
+    {
+      filename = concat_path(getenv("HOME"), RCFILE);
+      free_filename = 1;
+    }
+
+  D(printf("\n--Reading configuration file %s\n", filename));
+  if( (fd=open(filename,O_RDONLY)) <0 )
+    {
+      D(perror(filename));
+      if( free_filename )
+	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 = 0;
+	      
+	      /* enable colors */
+	      if( !strcasecmp(CONF_ENABLE_COLORS, name) )
+		{
+		  options->enable_colors = str2bool(value);
+		  match_found = 1;
+		}
+	      /* background color */
+	      else if( !strcasecmp(CONF_COLOR_BACKGROUND, name) )
+		{
+		  if( (color=str2color(value)) >= 0 )
+		    options->bg_color = color;
+		  match_found = 1;
+		}
+	      /* color - top (title) window */
+	      else if( !strcasecmp(CONF_COLOR_TITLE, name) )
+		{
+		  if( (color=str2color(value)) >= 0 )
+		    options->title_color = color;
+		  match_found = 1;
+		}
+	      /* color - line (title) window */
+	      else if( !strcasecmp(CONF_COLOR_LINE, name) )
+		{
+		  if( (color=str2color(value)) >= 0 )
+		    options->line_color = color;
+		  match_found = 1;
+		}
+	      /* color - list window */
+	      else if( !strcasecmp(CONF_COLOR_LIST, name) )
+		{
+		  if( (color=str2color(value)) >= 0 )
+		    options->list_color = color;
+		  match_found = 1;
+		}
+	      /* color - progress bar */
+	      else if( !strcasecmp(CONF_COLOR_PROGRESS, name) )
+		{
+		  if( (color=str2color(value)) >= 0 )
+		    options->progress_color = color;
+		  match_found = 1;
+		}
+	      /* color - status window */
+	      else if( !strcasecmp(CONF_COLOR_STATUS, name) )
+		{
+		  if( (color=str2color(value)) >= 0 )
+		    options->status_color = color;
+		  match_found = 1;
+		}
+	      /* color - alerts */
+	      else if( !strcasecmp(CONF_COLOR_ALERT, name) )
+		{
+		  if( (color=str2color(value)) >= 0 )
+		    options->alert_color = color;
+		  match_found = 1;
+		}
+	      
+
+	      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 )
+    free(filename);
+ 
+  return 0;
+}
+
+
+
+
+
+