Improve [:alpha:] and [:alnum:] for multibyte characters (Bug#19878)

 src/character.c (alphabeticp, decimalnump): New functions.
 src/character.h (alphabeticp, decimalnump): Add prototypes.
 src/regex.c (ISALNUM, ISALPHA): Check Unicode character properties
 for multibyte characters by calling alphabeticp and decimalnump.
 (BIT_ALPHA, BIT_ALNUM): New bit masks.
 (re_wctype_to_bit): Return them when the class is RECC_ALPHA or
 RECC_ALNUM.
 (re_match_2_internal): Call ISALPHA and ISALNUM when appropriate.

 doc/lispref/searching.texi (Char Classes): Update the documentation of
 [:alpha:] and [:alnum:].

 etc/NEWS: Mention the changes in [:alpha:] and [:alnum:].

1 files changed, 13 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index df687914911..97ecbac0953 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,16 @@
+2015-02-28  Eli Zaretskii  <eliz@gnu.org>
+
+        * character.c (alphabeticp, decimalnump): New functions.
+        * character.h (alphabeticp, decimalnump): Add prototypes.
+
+        * regex.c (ISALNUM, ISALPHA): Check Unicode character properties
+        for multibyte characters by calling alphabeticp and decimalnump.
+        (BIT_ALPHA, BIT_ALNUM): New bit masks.
+        (re_wctype_to_bit): Return them when the class is RECC_ALPHA or
+        RECC_ALNUM.
+        (re_match_2_internal): Call ISALPHA and ISALNUM when appropriate.
+        (Bug#19878)
+
 2015-02-27  Jan Djärv  <jan.h.d@swipnet.se>
 
         * xterm.h (x_real_pos_and_offsets): Take outer_border as arg also.