Warn duplicated characters in character class of regexp. [ruby-core:24593]

* include/ruby/oniguruma.h (ONIG_SYN_WARN_CC_DUP): defined.
* regparse.h (ScanEnv): add warnings_flag.
* regparse.c (CC_DUP_WARN): defined for warn duplicated characters in
  character class of regexp. [ruby-core:24593]
  (add_code_range_to_buf): add CC_DUP_WARN.
  (next_state_val): add CC_DUP_WARN.
  (OnigSyntaxRuby): add ONIG_SYN_WARN_CC_DUP.
  (SET_ALL_MULTI_BYTE_RANGE): add env to arguments.
  (add_code_range): ditto.
  (add_code_range_to_buf): ditto.
  (not_code_range_buf): ditto.
  (or_code_range_buf): ditto.
  (and_code_range1): ditto.
  (and_code_range_buf): ditto.
  (and_cclass): ditto.
  (or_cclass): ditto.
  (add_ctype_to_cc_by_range): ditto.
  (add_ctype_to_cc): ditto.
  (parse_char_class): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24387 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/regparse.h b/regparse.h
index b6783264f2..5ba7bf0ad0 100644
--- a/regparse.h
+++ b/regparse.h
@@ -306,6 +306,7 @@ typedef struct {
   int curr_max_regnum;
   int has_recursion;
 #endif
+  int warnings_flag;
 } ScanEnv;