From: David Kastrup <dak@gnu.org>
Date: Sun, 4 Aug 2013 09:36:34 +0000 (+0200)
Subject: Make tempo range \tempo 20~30 be input as \tempo 20-30 instead
X-Git-Tag: release/2.17.25-1~13^2~6^2~4
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=51697e92e7deb4281b6602928f7bbd3e99ee7b36;p=lilypond.git

Make tempo range \tempo 20~30 be input as \tempo 20-30 instead

\tempo's use of ~ was rather untypical for LilyPond.  Letting it
rather use @code{-} for ranges leaves just a single use for ties,
making it feasible to make @code{~} definable by the user in a later
commit.
---

diff --git a/Documentation/changes.tely b/Documentation/changes.tely
index 419dad0e81..c2ada64c4b 100644
--- a/Documentation/changes.tely
+++ b/Documentation/changes.tely
@@ -61,6 +61,10 @@ which scares away people.
 
 @end ignore
 
+@item
+Tempo change ranges are now written as @code{\tempo 4 = 60 - 68}
+rather than @code{\tempo 4 = 60 ~ 68}.
+
 @item
 Grob @code{OctavateEight} was renamed to @code{ClefModifier}.
 Related context properties were renamed from @code{xxxOctavationyyy}
diff --git a/lily/parser.yy b/lily/parser.yy
index a7d7285a06..3a64654197 100644
--- a/lily/parser.yy
+++ b/lily/parser.yy
@@ -3188,7 +3188,7 @@ tempo_range:
 	UNSIGNED {
 		$$ = $1;
 	}
-	| UNSIGNED '~' UNSIGNED {
+	| UNSIGNED '-' UNSIGNED {
 		$$ = scm_cons ($1, $3);
 	}
 	;
diff --git a/python/convertrules.py b/python/convertrules.py
index 121b12182c..6f0a0f1a04 100644
--- a/python/convertrules.py
+++ b/python/convertrules.py
@@ -3591,6 +3591,16 @@ def conv(str):
                   r"\1", str)
     return str
 
+@rule((2, 17, 25), r'''\tempo 4. = 50~60 -> \tempo 4. = 50-60''')
+def conv(str):
+#  This goes for \tempo commands ending with a range, like
+#  = 50 ~ 60
+#  and uses - instead.  We don't explicitly look for \tempo since the
+#  complete syntax has a large number of variants, and this is quite
+#  unlikely to occur in other contexts
+    str = re.sub (r"(=\s*[0-9]+\s*)~(\s*[0-9]+\s)", r"\1-\2", str)
+    return str
+
 # Guidelines to write rules (please keep this at the end of this file)
 #
 # - keep at most one rule per version; if several conversions should be done,
diff --git a/scm/define-music-display-methods.scm b/scm/define-music-display-methods.scm
index 537e5d24df..ccbeee6ad6 100644
--- a/scm/define-music-display-methods.scm
+++ b/scm/define-music-display-methods.scm
@@ -917,7 +917,7 @@ Otherwise, return #f."
                                 '())
                             (duration->lily-string ?unit #:force-duration #t)
                             (if (pair? ?count)
-                                (format #f "~a ~~ ~a" (car ?count) (cdr ?count))
+                                (format #f "~a - ~a" (car ?count) (cdr ?count))
                                 ?count)
                             (new-line->lily-string))))