X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Fstrfsong.c;h=b64c350ba6dace76d83b8c70f0dd49d591b1eefc;hb=f2b8b4378b3760e8ba5a1ed54a5f8635d3dac85e;hp=bac6d472f734fe8df06e8119382bbddb258074c3;hpb=9a500d13055f16b70796a5fce5ec6de4a2844187;p=ncmpc.git

diff --git a/src/strfsong.c b/src/strfsong.c
index bac6d47..b64c350 100644
--- a/src/strfsong.c
+++ b/src/strfsong.c
@@ -1,12 +1,6 @@
-/* 
- * $Id$
- *
- * Based on mpc's songToFormatedString modified for glib and ncmpc
- *
- *
- * (c) 2003-2004 by normalperson and Warren Dukes (shank@mercury.chem.pitt.edu)
- *              and Daniel Brown (danb@cs.utexas.edu)
- *              and Kalle Wallin (kaw@linux.se)
+/* ncmpc (Ncurses MPD Client)
+ * (c) 2004-2017 The Music Player Daemon Project
+ * Project homepage: http://musicpd.org
  *
  * 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
@@ -17,212 +11,287 @@
  * 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
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#include "strfsong.h"
+#include "charset.h"
+#include "time_format.h"
+
+#include <mpd/client.h>
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
 #include <string.h>
-#include <glib.h>
 
-#include "config.h"
-#include "libmpdclient.h"
-#include "support.h"
-#include "strfsong.h"
+static const gchar *
+skip(const gchar * p)
+{
+	gint stack = 0;
+
+	while (*p != '\0') {
+		if (*p == '[')
+			stack++;
+		if (*p == '#' && p[1] != '\0') {
+			/* skip escaped stuff */
+			++p;
+		} else if (stack) {
+			if(*p == ']') stack--;
+		} else {
+			if(*p == '&' || *p == '|' || *p == ']') {
+				break;
+			}
+		}
+		++p;
+	}
+
+	return p;
+}
+
+#ifndef NCMPC_MINI
 
-static gchar * 
-skip(gchar * p) 
+static char *
+concat_tag_values(const char *a, const char *b)
 {
-  gint stack = 0;
- 
-  while (*p != '\0') {
-    if(*p == '[') stack++;
-    if(*p == '#' && p[1] != '\0') {
-      /* skip escaped stuff */
-      ++p;
-    }
-    else if(stack) {
-      if(*p == ']') stack--;
-    }
-    else {
-      if(*p == '&' || *p == '|' || *p == ']') {
-	break;
-      }
-    }
-    ++p;
-  }
-
-  return p;
+	return g_strconcat(a, ", ", b, NULL);
 }
 
-static gsize
-_strfsong(gchar *s, 
-	  gsize max, 
-	  const gchar *format, 
-	  mpd_Song *song, 
-	  gchar **last)
+static char *
+song_more_tag_values(const struct mpd_song *song, enum mpd_tag_type tag,
+		     const char *first)
 {
-  gchar *p, *end;
-  gchar *temp;
-  gsize n, length = 0;
-  gboolean found = FALSE;
-
-  memset(s, 0, max);
-  if( song==NULL )
-    return 0;
-  
-  for( p=(gchar *) format; *p != '\0' && length<max; )
-    {
-      /* OR */
-      if (p[0] == '|') 
-	{
-	  ++p;
-	  if(!found) 
-	    {
-	      memset(s, 0, max);
-	      length = 0;
-	    }
-	  else 
-	    {
-	      p = skip(p);
-	    }
-	  continue;
-	}
+	const char *p = mpd_song_get_tag(song, tag, 1);
+	if (p == NULL)
+		return NULL;
 
-      /* AND */
-      if (p[0] == '&') 
-	{
-	  ++p;
-	  if(!found) 
-	    {
-	      p = skip(p);
-	    }
-	  else 
-	    {
-	      found = FALSE;
-	    }
-	  continue;
+	char *buffer = concat_tag_values(first, p);
+	for (unsigned i = 2; (p = mpd_song_get_tag(song, tag, i)) != NULL;
+	     ++i) {
+		char *prev = buffer;
+		buffer = concat_tag_values(buffer, p);
+		g_free(prev);
 	}
 
-      /* EXPRESSION START */
-      if (p[0] == '[')
-	{
-	  temp = g_malloc0(max);
-	  if( _strfsong(temp, max, p+1, song, &p) >0 )
-	    {
-	      g_strlcat(s, temp, max);
-	      length = strlen(s);
-	      found = TRUE;
-	    }
-	  g_free(temp);
-	  continue;
-	}
+	return buffer;
+}
 
-      /* EXPRESSION END */
-      if (p[0] == ']')
-	{
-	  if(last) *last = p+1;
-	  if(!found && length) 
-	    {
-	      memset(s, 0, max);
-	      length = 0;
-	    }
-	  return length;
-	}
+#endif /* !NCMPC_MINI */
 
-      /* pass-through non-escaped portions of the format string */
-      if (p[0] != '#' && p[0] != '%' && length<max)
-	{
-	  s[length++] = *p;
-	  p++;
-	  continue;
-	}
+static char *
+song_tag_locale(const struct mpd_song *song, enum mpd_tag_type tag)
+{
+	const char *value = mpd_song_get_tag(song, tag, 0);
+	if (value == NULL)
+		return NULL;
 
-      /* let the escape character escape itself */
-      if (p[0] == '#' && p[1] != '\0' && length<max)
-	{
-	  s[length++] = *(p+1);
-	  p+=2;
-	  continue;
-	}
+#ifndef NCMPC_MINI
+	char *all = song_more_tag_values(song, tag, value);
+	if (all != NULL)
+		value = all;
+#endif /* !NCMPC_MINI */
 
-      /* advance past the esc character */
+	char *result = utf8_to_locale(value);
 
-      /* find the extent of this format specifier (stop at \0, ' ', or esc) */
-      temp = NULL;
-      end  = p+1;
-      while(*end >= 'a' && *end <= 'z')
-	{
-	  end++;
-	}
-      n = end - p + 1;
-      if(*end != '%')
-	n--;
-      else if (strncmp("%file%", p, n) == 0)
-	temp = utf8_to_locale(song->file);
-      else if (strncmp("%artist%", p, n) == 0)
-	temp = song->artist ? utf8_to_locale(song->artist) : NULL;
-      else if (strncmp("%title%", p, n) == 0)
-	temp = song->title ? utf8_to_locale(song->title) : NULL;
-      else if (strncmp("%album%", p, n) == 0)
-	temp = song->album ? utf8_to_locale(song->album) : NULL;
-      else if (strncmp("%track%", p, n) == 0)
-	temp = song->track ? utf8_to_locale(song->track) : NULL;
-      else if (strncmp("%name%", p, n) == 0)
-	temp = song->name ? utf8_to_locale(song->name) : NULL;
-      else if (strncmp("%shortfile%", p, n) == 0)
-	{
-	  if( strstr(song->file, "://") )
-	    temp = utf8_to_locale(song->file);
-	  else
-	    temp = utf8_to_locale(basename(song->file));
-	}
-      else if (strncmp("%time%", p, n) == 0)
-	{
-	  if (song->time != MPD_SONG_NO_TIME) 
-	    temp = g_strdup_printf("%d:%d", 
-				   song->time / 60, 
-				   song->time % 60 + 1);
-	}
+#ifndef NCMPC_MINI
+	g_free(all);
+#endif /* !NCMPC_MINI */
 
-      if( temp == NULL)
-	{
-	  gsize templen=n;
-	  /* just pass-through any unknown specifiers (including esc) */
-	  /* drop a null char in so printf stops at the end of this specifier,
-	     but put the real character back in (pseudo-const) */
-	  if( length+templen > max )
-	    templen = max-length;
-	  g_strlcat(s, p,max);
-	  length+=templen;
-	}
-      else {
-	gsize templen = strlen(temp);
+	return result;
+}
+
+static gsize
+_strfsong(gchar *s,
+	  gsize max,
+	  const gchar *format,
+	  const struct mpd_song *song,
+	  const gchar **last)
+{
+	bool found = false;
+	/* "missed" helps handling the case of mere literal text like
+	   found==true instead of found==false. */
+	bool missed = false;
+
+	s[0] = '\0';
+
+	if (song == NULL)
+		return 0;
+
+	const char *p;
+	size_t length = 0;
+	for (p = format; *p != '\0' && length<max;) {
+		/* OR */
+		if (p[0] == '|') {
+			++p;
+			if(missed && !found) {
+				s[0] = '\0';
+				length = 0;
+				missed = false;
+			} else {
+				p = skip(p);
+			}
+			continue;
+		}
+
+		/* AND */
+		if (p[0] == '&') {
+			++p;
+			if(missed && !found) {
+				p = skip(p);
+			} else {
+				found = false;
+				missed = false;
+			}
+			continue;
+		}
 
-	found = TRUE;
-	if( length+templen > max )
-	  templen = max-length;
-	g_strlcat(s, temp, max);
-	length+=templen;
-	g_free(temp);
-      }
+		/* EXPRESSION START */
+		if (p[0] == '[') {
+			char *temp = g_malloc0(max);
+			if( _strfsong(temp, max, p+1, song, &p) >0 ) {
+				g_strlcat(s, temp, max);
+				length = strlen(s);
+				found = true;
+			} else {
+				missed = true;
+			}
+			g_free(temp);
+			continue;
+		}
 
-      /* advance past the specifier */
-      p += n;
-    }
+		/* EXPRESSION END */
+		if (p[0] == ']') {
+			if(last) *last = p+1;
+			if(missed && !found && length) {
+				s[0] = '\0';
+				length = 0;
+			}
+			return length;
+		}
 
-  if(last) *last = p;
+		/* pass-through non-escaped portions of the format string */
+		if (p[0] != '#' && p[0] != '%' && length<max) {
+			s[length++] = *p;
+			s[length] = '\0';
+			p++;
+			continue;
+		}
 
-  return length;
+		/* let the escape character escape itself */
+		if (p[0] == '#' && p[1] != '\0' && length<max) {
+			s[length++] = *(p+1);
+			s[length] = '\0';
+			p+=2;
+			continue;
+		}
+
+		/* advance past the esc character */
+
+		/* find the extent of this format specifier (stop at \0, ' ', or esc) */
+		char *temp = NULL;
+		const char *end = p + 1;
+		while(*end >= 'a' && *end <= 'z') {
+			end++;
+		}
+		size_t n = end - p + 1;
+		if(*end != '%')
+			n--;
+		else if (strncmp("%file%", p, n) == 0)
+			temp = utf8_to_locale(mpd_song_get_uri(song));
+		else if (strncmp("%artist%", p, n) == 0) {
+			temp = song_tag_locale(song, MPD_TAG_ARTIST);
+			if (temp == NULL) {
+				temp = song_tag_locale(song, MPD_TAG_PERFORMER);
+				if (temp == NULL)
+					temp = song_tag_locale(song, MPD_TAG_COMPOSER);
+			}
+		} else if (strncmp("%albumartist", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_ALBUM_ARTIST);
+		else if (strncmp("%composer%", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_COMPOSER);
+		else if (strncmp("%performer%", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_PERFORMER);
+		else if (strncmp("%title%", p, n) == 0) {
+			temp = song_tag_locale(song, MPD_TAG_TITLE);
+			if (temp == NULL)
+				temp = song_tag_locale(song, MPD_TAG_NAME);
+		} else if (strncmp("%album%", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_ALBUM);
+		else if (strncmp("%shortalbum%", p, n) == 0) {
+			temp = song_tag_locale(song, MPD_TAG_ALBUM);
+			if (temp) {
+				gchar *temp2 = g_strndup(temp, 25);
+				if (strlen(temp) > 25) {
+					temp2[24] = '.';
+					temp2[23] = '.';
+					temp2[22] = '.';
+				}
+				g_free(temp);
+				temp = temp2;
+			}
+		}
+		else if (strncmp("%track%", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_TRACK);
+		else if (strncmp("%disc%", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_DISC);
+		else if (strncmp("%name%", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_NAME);
+		else if (strncmp("%date%", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_DATE);
+		else if (strncmp("%genre%", p, n) == 0)
+			temp = song_tag_locale(song, MPD_TAG_GENRE);
+		else if (strncmp("%shortfile%", p, n) == 0) {
+			const char *uri = mpd_song_get_uri(song);
+			if (strstr(uri, "://") != NULL)
+				temp = utf8_to_locale(uri);
+			else
+				temp = utf8_to_locale(g_basename(uri));
+		} else if (strncmp("%time%", p, n) == 0) {
+			unsigned duration = mpd_song_get_duration(song);
+
+			if (duration > 0)  {
+				char buffer[32];
+				format_duration_short(buffer, sizeof(buffer),
+						      duration);
+				temp = g_strdup(buffer);
+			}
+		}
+
+		if( temp == NULL) {
+			gsize templen=n;
+			/* just pass-through any unknown specifiers (including esc) */
+			if( length+templen > max )
+				templen = max-length;
+			gchar *ident = g_strndup(p, templen);
+			g_strlcat(s, ident, max);
+			length+=templen;
+			g_free(ident);
+
+			missed = true;
+		} else {
+			gsize templen = strlen(temp);
+
+			found = true;
+			if( length+templen > max )
+				templen = max-length;
+			g_strlcat(s, temp, max);
+			length+=templen;
+			g_free(temp);
+		}
+
+		/* advance past the specifier */
+		p += n;
+	}
+
+	if(last) *last = p;
+
+	return length;
 }
 
 gsize
-strfsong(gchar *s, gsize max, const gchar *format, mpd_Song *song)
+strfsong(gchar *s, gsize max, const gchar *format,
+	 const struct mpd_song *song)
 {
-  return _strfsong(s, max, format, song, NULL);
+	return _strfsong(s, max, format, song, NULL);
 }
-     
+