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command: playlistinfo now uses a range argument rather than just a song id

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Loosely based on a patch provided by lesion in bug #1766. The playlistinfo
command can now retrieve ranges of the playlist. The new argument indicates
which entry is the last one that will be displayed. The number of displayed
entries may be smaller than expected if the end of the playlist is reached.

Previous usage:
playlistinfo [start]

New usage:
playlistinfo [start[:end]]
This commit is contained in:
Thomas Jansen
2009-01-09 17:06:44 +01:00
committed by Max Kellermann
parent 8ed3cf3e6b
commit 6f0781f039
3 changed files with 12 additions and 6 deletions
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7
src/playlist.c
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@@ -413,7 +413,7 @@ int playlistChangesPosId(struct client *client, uint32_t version)
return 0;
}
enum playlist_result playlistInfo(struct client *client, int song)
enum playlist_result playlistInfo(struct client *client, int song, int max)
{
unsigned begin = 0;
unsigned end = playlist.length;
@@ -424,6 +424,11 @@ enum playlist_result playlistInfo(struct client *client, int song)
}
if (song >= (int)playlist.length)
return PLAYLIST_RESULT_BAD_RANGE;
if (max > 0) {
end = MIN((unsigned)(max + 1), playlist.length);
if (end <= begin)
return PLAYLIST_RESULT_BAD_RANGE;
}
for (unsigned i = begin; i < end; i++)
printPlaylistSongInfo(client, i);