From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Tue, 18 Jan 2011 14:31:58 +0000 (+0100)
Subject: Midi2ly: grok midi files with up to 256 tracks, was 32.  Fixes #1479.
X-Git-Tag: release/2.13.47-1~48
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=85c0ce205e1a9b5fad4ac79d02292ac1231db532;p=lilypond.git

Midi2ly: grok midi files with up to 256 tracks, was 32.  Fixes #1479.
---

diff --git a/scripts/midi2ly.py b/scripts/midi2ly.py
index 86c32badfa..b03e1a82ea 100644
--- a/scripts/midi2ly.py
+++ b/scripts/midi2ly.py
@@ -712,11 +712,20 @@ def dump_channel (thread, skip):
 
     return '\n  '.join (lines) + '\n'
 
+def number2ascii (i):
+    s = ''
+    i += 1
+    while i > 0:
+        m = (i - 1) % 26
+        s = '%c' % (m + ord ('A')) + s
+        i = (i - m)/26
+    return s
+
 def track_name (i):
-    return 'track%c' % (i + ord ('A'))
+    return 'track' + number2ascii (i)
 
 def channel_name (i):
-    return 'channel%c' % (i + ord ('A'))
+    return 'channel' + number2ascii (i)
 
 def dump_track (channels, n):
     s = '\n'