updated for version 7.3.1149
Problem: New regexp engine: Matching plain text could be faster.
Solution: Detect a plain text match and handle it specifically. Add
vim_regfree().
diff --git a/src/macros.h b/src/macros.h
index 9e3ba44..1737cfa 100644
--- a/src/macros.h
+++ b/src/macros.h
@@ -272,6 +272,7 @@
# define MB_COPY_CHAR(f, t) if (has_mbyte) mb_copy_char(&f, &t); else *t++ = *f++
# define MB_CHARLEN(p) (has_mbyte ? mb_charlen(p) : (int)STRLEN(p))
+# define MB_CHAR2LEN(c) (has_mbyte ? mb_char2len(c) : 1)
# define PTR2CHAR(p) (has_mbyte ? mb_ptr2char(p) : (int)*(p))
#else
# define MB_PTR2LEN(p) 1
@@ -280,6 +281,7 @@
# define mb_ptr_back(s, p) --p
# define MB_COPY_CHAR(f, t) *t++ = *f++
# define MB_CHARLEN(p) STRLEN(p)
+# define MB_CHAR2LEN(c) 1
# define PTR2CHAR(p) ((int)*(p))
#endif