patch of grin force word regex match

grin_rev80_force-word-match.patch

Index: grin.py
===================================================================
--- grin.py	(revision 80)
+++ grin.py	(working copy)
@@ -762,6 +762,8 @@
         help="show program's version number and exit")
     parser.add_argument('-i', '--ignore-case', action='append_const',
         dest='re_flags', const=re.I, default=[], help="ignore case in the regex")
+    parser.add_argument('-w', '--word-regexp', action='store_true', default=False,
+        dest='is_matchword', help="force regex to match only whole words")
     parser.add_argument('-A', '--after-context', default=0, type=int,
         help="the number of lines of context to show after the match [default=%(default)r]")
     parser.add_argument('-B', '--before-context', default=0, type=int,
@@ -1003,7 +1005,11 @@
     flags = 0
     for flag in args.re_flags:
         flags |= flag
-    return re.compile(args.regex, flags)
+    if args.is_matchword:
+        regex = "\\b(%s)\\b" % args.regex
+    else:
+        regex = args.regex
+    return re.compile(regex, flags)
 
 
 def grin_main(argv=None):