* ext/tk/tcltklib.c (lib_eventloop_ensure): mis-delete a timer handler

  when exit from a recursive called eventloop
* ext/tk/lib/tk/timer.rb: new TkRTTimer class, which can works for a
  realtime operation
* ext/tk/sample/tkrttimer.rb: sample of TkRTTimer class
* ext/tk/lib/tk/textmark.rb: move  TkTextMark#+ and TkTextMark#- to
  TkText::IndexModMethods
* ext/tk/lib/tk/text.rb: improve TkTextMark#+ and TkTextMark#-, and
  add them to TkText::IndexModMethods module
* ext/tk/sample/tktextio.rb: add test part of "seek by text index
  modifiers"


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8133 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 30 insertions, 2 deletions

diff --git a/ext/tk/lib/tk/textmark.rb b/ext/tk/lib/tk/textmark.rb
index 9dff764eca..dccde38d7f 100644
--- a/ext/tk/lib/tk/textmark.rb
+++ b/ext/tk/lib/tk/textmark.rb
@@ -47,11 +47,39 @@ class TkTextMark<TkObject
     end
   end
 
+=begin
+  # move to TkText::IndexModMethods module
   def +(mod)
-    TkText::IndexString.new(@id + ' + ' + mod)
+    return chars(mod) if mod.kind_of?(Numeric)
+
+    mod = mod.to_s
+    if mod =~ /^\s*[+-]?\d/
+      TkText::IndexString.new(@id + ' + ' + mod)
+    else
+      TkText::IndexString.new(@id + ' ' + mod)
+    end
   end
+
   def -(mod)
-    TkText::IndexString.new(@id + ' - ' + mod)
+    return chars(-mod) if mod.kind_of?(Numeric)
+
+    mod = mod.to_s
+    if mod =~ /^\s*[+-]?\d/
+      TkText::IndexString.new(@id + ' - ' + mod)
+    elsif mod =~ /^\s*[-]\s+(\d.*)$/
+      TkText::IndexString.new(@id + ' - -' + $1)
+    else
+      TkText::IndexString.new(@id + ' ' + mod)
+    end
+  end
+=end
+
+  def pos
+    @t.index(@id)
+  end
+
+  def pos=(where)
+    set(where)
   end
 
   def set(where)