Upgrade \X to match an extended grapheme cluster

git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1011 2f5784b3-3f2a-0410-8824-cb99058d5e15

1 files changed, 26 insertions, 2 deletions

diff --git a/ucp.h b/ucp.h
index 59c3bec..8c3afde 100644
--- a/ucp.h
+++ b/ucp.h
@@ -7,7 +7,11 @@
 
 /* This file contains definitions of the property values that are returned by
 the UCD access macros. New values that are added for new releases of Unicode
-should always be at the end of each enum, for backwards compatibility. */
+should always be at the end of each enum, for backwards compatibility.
+
+IMPORTANT: Note also that the specific numeric values of the enums have to be
+the same as the values that are generated by the maint/MultiStage2.py script,
+where the equivalent property descriptive names are listed in vectors. */
 
 /* These are the general character categories. */
 
@@ -21,7 +25,7 @@ enum {
   ucp_Z      /* Separator */
 };
 
-/* These are the particular character types. */
+/* These are the particular character categories. */
 
 enum {
   ucp_Cc,    /* Control */
@@ -56,6 +60,26 @@ enum {
   ucp_Zs     /* Space separator */
 };
 
+/* These are grapheme break properties. Note that the code for processing them 
+assumes that the values are less than 16. If more values are added that take 
+the number to 16 or more, the code will have to be rewritten. */
+
+enum {
+  ucp_gbCR,             /*  0 */
+  ucp_gbLF,             /*  1 */
+  ucp_gbControl,        /*  2 */
+  ucp_gbExtend,         /*  3 */
+  ucp_gbPrepend,        /*  4 */
+  ucp_gbSpacingMark,    /*  5 */
+  ucp_gbL,              /*  6 Hangul syllable type L */
+  ucp_gbV,              /*  7 Hangul syllable type V */
+  ucp_gbT,              /*  8 Hangul syllable type T */
+  ucp_gbLV,             /*  9 Hangul syllable type LV */
+  ucp_gbLVT,            /* 10 Hangul syllable type LVT */
+  ucp_gbOther,          /* 11 */
+  ucp_gbCount           /* 12 The number of properties */ 
+};
+
 /* These are the script identifications. */
 
 enum {