From f32c76a2668cdbee36f1c6515693b41428f865e7 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 2 Aug 2000 04:54:21 +0000
Subject: matz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@869 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/tk/lib/tktext.rb | 88 ++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 68 insertions(+), 20 deletions(-)

(limited to 'ext/tk/lib/tktext.rb')

diff --git a/ext/tk/lib/tktext.rb b/ext/tk/lib/tktext.rb
index f7b3f84ba7..c8b171c156 100644
--- a/ext/tk/lib/tktext.rb
+++ b/ext/tk/lib/tktext.rb
@@ -334,17 +334,42 @@ class TkText<TkTextWin
     tk_split_simplelist(tk_send('tag', 'prevrange', tag, first, last))
   end
 
+  def _ktext_length(txt)
+    if $KCODE !~ /n/i
+      return txt.gsub(/[^\Wa-zA-Z_\d]/, ' ').length
+    end
+
+    # $KCODE == 'NONE'
+    if JAPANIZED_TK
+      tk_call('kstring', 'length', txt).to_i
+    else
+      begin
+	tk_call('encoding', 'convertto', 'ascii', txt).length
+      rescue StandardError, NameError
+	# sorry, I have no plan
+	txt.length
+      end
+    end
+  end
+  private :_ktext_length
+
   def search_with_length(pat,start,stop=None)
-    pat = pat.char if pat.kind_of? Integer
+    pat = pat.chr if pat.kind_of? Integer
     if stop != None
       return ["", 0] if compare(start,'>=',stop)
       txt = get(start,stop)
       if (pos = txt.index(pat))
-	pos = txt[0..(pos-1)].split('').length if pos > 0
+	match = $&
+	#pos = txt[0..(pos-1)].split('').length if pos > 0
+	pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
 	if pat.kind_of? String
-	  return [index(start + " + #{pos} chars"), pat.split('').length]
+	  #return [index(start + " + #{pos} chars"), pat.split('').length]
+	  return [index(start + " + #{pos} chars"), 
+		  _ktext_length(pat), pat.dup]
 	else
-	  return [index(start + " + #{pos} chars"), $&.split('').length]
+	  #return [index(start + " + #{pos} chars"), $&.split('').length]
+	  return [index(start + " + #{pos} chars"), 
+		  _ktext_length(match), match]
 	end
       else
 	return ["", 0]
@@ -352,20 +377,31 @@ class TkText<TkTextWin
     else
       txt = get(start,'end - 1 char')
       if (pos = txt.index(pat))
-	pos = txt[0..(pos-1)].split('').length if pos > 0
+	match = $&
+	#pos = txt[0..(pos-1)].split('').length if pos > 0
+	pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
 	if pat.kind_of? String
-	  return [index(start + " + #{pos} chars"), pat.split('').length]
+	  #return [index(start + " + #{pos} chars"), pat.split('').length]
+	  return [index(start + " + #{pos} chars"), 
+		  _ktext_length(pat), pat.dup]
 	else
-	  return [index(start + " + #{pos} chars"), $&.split('').length]
+	  #return [index(start + " + #{pos} chars"), $&.split('').length]
+	  return [index(start + " + #{pos} chars"), 
+		  _ktext_length(match), match]
 	end
       else
 	txt = get('1.0','end - 1 char')
 	if (pos = txt.index(pat))
-	  pos = txt[0..(pos-1)].split('').length if pos > 0
+	  match = $&
+	  #pos = txt[0..(pos-1)].split('').length if pos > 0
+	  pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
 	  if pat.kind_of? String
-	    return [index("1.0 + #{pos} chars"), pat.split('').length]
+	    #return [index("1.0 + #{pos} chars"), pat.split('').length]
+	    return [index("1.0 + #{pos} chars"), 
+		    _ktext_length(pat), pat.dup]
 	  else
-	    return [index("1.0 + #{pos} chars"), $&.split('').length]
+	    #return [index("1.0 + #{pos} chars"), $&.split('').length]
+	    return [index("1.0 + #{pos} chars"), _ktext_length(match), match]
 	  end
 	else
 	  return ["", 0]
@@ -379,16 +415,20 @@ class TkText<TkTextWin
   end
 
   def rsearch_with_length(pat,start,stop=None)
-    pat = pat.char if pat.kind_of? Integer
+    pat = pat.chr if pat.kind_of? Integer
     if stop != None
       return ["", 0] if compare(start,'<=',stop)
       txt = get(stop,start)
       if (pos = txt.rindex(pat))
-	pos = txt[0..(pos-1)].split('').length if pos > 0
+	match = $&
+	#pos = txt[0..(pos-1)].split('').length if pos > 0
+	pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
 	if pat.kind_of? String
-	  return [index(stop + " + #{pos} chars"), pat.split('').length]
+	  #return [index(stop + " + #{pos} chars"), pat.split('').length]
+	  return [index(stop + " + #{pos} chars"), _ktext_length(pat), pat.dup]
 	else
-	  return [index(stop + " + #{pos} chars"), $&.split('').length]
+	  #return [index(stop + " + #{pos} chars"), $&.split('').length]
+	  return [index(stop + " + #{pos} chars"), _ktext_length(match), match]
 	end
       else
 	return ["", 0]
@@ -396,20 +436,28 @@ class TkText<TkTextWin
     else
       txt = get('1.0',start)
       if (pos = txt.rindex(pat))
-	pos = txt[0..(pos-1)].split('').length if pos > 0
+	match = $&
+	#pos = txt[0..(pos-1)].split('').length if pos > 0
+	pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
 	if pat.kind_of? String
-	  return [index("1.0 + #{pos} chars"), pat.split('').length]
+	  #return [index("1.0 + #{pos} chars"), pat.split('').length]
+	  return [index("1.0 + #{pos} chars"), _ktext_length(pat), pat.dup]
 	else
-	  return [index("1.0 + #{pos} chars"), $&.split('').length]
+	  #return [index("1.0 + #{pos} chars"), $&.split('').length]
+	  return [index("1.0 + #{pos} chars"), _ktext_length(match), match]
 	end
       else
 	txt = get('1.0','end - 1 char')
 	if (pos = txt.rindex(pat))
-	  pos = txt[0..(pos-1)].split('').length if pos > 0
+	  match = $&
+	  #pos = txt[0..(pos-1)].split('').length if pos > 0
+	  pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
 	  if pat.kind_of? String
-	    return [index("1.0 + #{pos} chars"), pat.split('').length]
+	    #return [index("1.0 + #{pos} chars"), pat.split('').length]
+	    return [index("1.0 + #{pos} chars"), _ktext_length(pat), pat.dup]
 	  else
-	    return [index("1.0 + #{pos} chars"), $&.split('').length]
+	    #return [index("1.0 + #{pos} chars"), $&.split('').length]
+	    return [index("1.0 + #{pos} chars"), _ktext_length(match), match]
 	  end
 	else
 	  return ["", 0]
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