Zach's git repos / prosongsa
Backend for songs.zachdecook.com
Diffstat (limited to 'laravel/app/Http/Controllers/SongController.php')
-rw-r--r--laravel/app/Http/Controllers/SongController.php46
1 files changed, 45 insertions, 1 deletions
diff --git a/laravel/app/Http/Controllers/SongController.php b/laravel/app/Http/Controllers/SongController.php
index 44c766d..d1d4741 100644
--- a/laravel/app/Http/Controllers/SongController.php
+++ b/laravel/app/Http/Controllers/SongController.php
@@ -11,6 +11,50 @@ class SongController extends Controller
public function show( $songNumber )
{
$song = Song::where('number', $songNumber )->first();
- return view('song', ['song' => $song ] );
+ $lines = explode( "\n", $song['text'] );
+ $newText = '';
+ foreach( $lines as $line ){
+ $line = htmlspecialchars( $line );
+ if ( $this->chordline( $line ) ) {
+ $transp = 0;
+ $class = "tabs chord$transp";
+ $line = str_replace(
+ array('{','}'),
+ array('</b>{', "}<b class='$class'>" ),
+ $line );
+ $newText .= "<b class='$class'>" . $line . "</b>\n";
+ } else {
+ $newText .= "$line\n";
+ }
+ }
+ $song['escapedText'] = $newText;
+ return view('song', ['song' => $song, 'transp' => 0 ] );
}
+
+ /**
+ * @brief Determine whether or not this line contains chords.
+ */
+ private function chordline($line)
+ {
+ $chords =
+ array( "C","C#","D","D#","E","F","F#","G","G#","A#","B",//"A",
+ "Db", "Eb", "Gb", "Bb",//"Ab",
+ "Cm", "Dm", "Fm", "Gm", "Bm", //"Em", "Am",
+ );
+ $ambiguous = array( "Ab", "Em", "Am", "A" );
+ $line = str_replace(array('/','7', "\n", '2', '4'), ' ', $line);
+ $tokens = array_filter(explode(' ', $line));
+
+ $badtokens = 0;
+ $ambtokens = 0;
+ $goodtokens = 0;
+ foreach ($tokens as $token) {
+ if( in_array( substr($token, 0,2), $chords ) ) $goodtokens++;
+ else if ( in_array( substr( $token, 0,2), $ambiguous) ) $ambtokens++;
+ else if( $badtokens > 10 ) return FALSE;
+ else $badtokens++;
+ }
+ return ($goodtokens *2)+ $ambtokens >= $badtokens;
+ }
+
}