Fix initialization of the table for quick search

This fixes k-takata/Onigmo#120.

The commit k-takata/Onigmo@9c13de8 was insufficient.

k-takata/Onigmo@1de602d

Author: k-takata

regcomp.c

@@ -4309,8 +4309,6 @@ set_bm_skip(UChar* s, UChar* end, regex_t* reg,
 
   len = end - s;
   if (len < ONIG_CHAR_TABLE_SIZE) {
-    for (i = 0; i < ONIG_CHAR_TABLE_SIZE; i++) skip[i] = (UChar )(len + 1);
-
     if (ignore_case) {
       for (i = 0; i < len; i += clen) {
         p = s + i;
@@ -4339,6 +4337,8 @@ set_bm_skip(UChar* s, UChar* end, regex_t* reg,
     }
 
     len = end - s;
+    for (i = 0; i < ONIG_CHAR_TABLE_SIZE; i++)
+      skip[i] = (UChar )(len + 1);
     n = 0;
     for (i = 0; i < len; i += clen) {
       p = s + i;

test/ruby/test_regexp.rb

@@ -1743,6 +1743,10 @@ def test_conditional_expression
     assert_raise(RegexpError, bug12418){ Regexp.new('(0?0|(?(5)||)|(?(5)||))?') }
   end
 
+  def test_quick_search
+    assert_match_at('(?i) *TOOKY', 'Mozilla/5.0 (Linux; Android 4.0.3; TOOKY', [[34, 40]])   # Issue #120
+  end
+
   def test_ss_in_look_behind
     assert_match_at("(?i:ss)", "ss", [[0, 2]])
     assert_match_at("(?i:ss)", "Ss", [[0, 2]])