refactor HeadlineIndex.parse

kmuto · Apr 12, 2014 · 8c27ba4 · 8c27ba4
1 parent 7305d5a
commit 8c27ba4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/review/book/index.rb b/lib/review/book/index.rb
@@ -317,14 +317,15 @@ def number(id)
     end
 
     class HeadlineIndex < Index
+      HEADLINE_PATTERN = /\A(=+)(?:\[(.+?)\])?(?:\{(.+?)\})?(.*)/
       Item = Struct.new(:id, :number, :caption)
 
       def HeadlineIndex.parse(src, chap)
         items = []
         indexs = []
         headlines = []
         src.each do |line|
-          if m = /\A(=+)(?:\[(.+?)\])?(?:\{(.+?)\})?(.*)/.match(line)
+          if m = HEADLINE_PATTERN.match(line)
             next if m[2] == 'column'
             index = m[1].size - 2
             if index >= 0