add new release to perlhist

[perl5.git] / regcomp.sym

diff --git a/regcomp.sym b/regcomp.sym
index 1554ec9..510a616 100644 (file)
--- a/regcomp.sym
+++ b/regcomp.sym
@@ -129,6 +129,9 @@ BRANCH      BRANCH,     node 0 V  ; Match this alternative, or the next...
 
 #*Literals
 # NOTE: the relative ordering of these types is important do not change it
+# By convention, folding nodes begin with EXACTF; A digit 8 is in the name if
+# and only if it it requires a UTF-8 target string in order to successfully
+# match.
 
 EXACT       EXACT,      str       ; Match this string (flags field is the length).
 
@@ -144,11 +147,13 @@ EXACTFU     EXACT,      str         ; Like EXACT, but match using /iu rules; (string f
 # they would fold to something that requires UTF-8.  SHARP S would normally
 # fold to 'ss', but because of /aa, it instead folds to a pair of LATIN SMALL
 # LETTER LONG S characters (U+017F)
-EXACTFAA    EXACT,      str      ; Like EXACT, but match using /iaa rules; (string folded except in non-UTF8 patterns: MICRO, SHARP S; folded length <= unfolded)
+EXACTFAA    EXACT,      str      ; Like EXACT, but match using /iaa rules; (string folded except MICRO in non-UTF8 patterns; doesn't contain SHARP S unless UTF-8; folded length <= unfolded)
+# must immediately follow EXACTFAA
+EXACTFAA_NO_TRIE  EXACT, str     ; Like EXACTFAA, (string not UTF-8, folded except: MICRO, SHARP S; folded length <= unfolded, not currently trie-able)
 
 # End of important relative ordering.
 
-EXACTFUP    EXACT,      str      ; Like EXACT, but match using /iu rules; (string not UTF-8, folded except MICRO, SHARP S: hence Problematic)
+EXACTFUP    EXACT,      str      ; Like EXACT, but match using /iu rules; (string not UTF-8, folded except MICRO: hence Problematic)
 # In order for a non-UTF-8 EXACTFAA to think the pattern is pre-folded when
 # matching a UTF-8 target string, there would have to be something like an
 # EXACTFAA_MICRO which would not be considered pre-folded for UTF-8 targets,
@@ -156,9 +161,6 @@ EXACTFUP    EXACT,      str   ; Like EXACT, but match using /iu rules; (string n
 # representable in the UTF-8 target string.
 
 EXACTFLU8   EXACT,      str      ; Like EXACTFU, but use /il, UTF-8, (string is folded, and everything in it is above 255
-EXACTFAA_NO_TRIE  EXACT, str     ; Like EXACT, but match using /iaa rules (string not UTF-8, not guaranteed to be folded, not currently trie-able)
-
-
 EXACT_REQ8   EXACT,      str      ; Like EXACT, but only UTF-8 encoded targets can match
 LEXACT_REQ8  EXACT,  len:str 1    ; Like LEXACT, but only UTF-8 encoded targets can match
 EXACTFU_REQ8 EXACT,    str        ; Like EXACTFU, but only UTF-8 encoded targets can match