regcomp.h: Create new typedef synonym for clarity

This commit finishes (at least for now) removing some of the overloading
of the term class.  A 'regnode_charclass_class' node contains space for
storing the posix classes it matches that are never defined until the
moment of matching because they are subject to the current run-time
locale.  This commit creates a typedef 'regnode_charclass_posixl'
synonym that doesn't re-use the term 'class' for two different purposes.

1 files changed, 5 insertions, 0 deletions

diff --git a/perl.h b/perl.h
index cbd4320161..dfd425cbf0 100644
--- a/perl.h
+++ b/perl.h
@@ -3277,6 +3277,11 @@ typedef struct magic_state MGS;	/* struct magic_state defined in mg.c */
 
 struct scan_data_t;		/* Used in S_* functions in regcomp.c */
 struct regnode_charclass_class;	/* Used in S_* functions in regcomp.c */
+
+/* A hopefully less confusing name.  The sub-classes are all Posix classes only
+ * used under /l matching */
+typedef struct regnode_charclass_class regnode_charclass_posixl;
+
 typedef struct regnode_ssc regnode_ssc;
 
 struct ptr_tbl_ent {