regcomp.sym: Note specialized use of 'flags' in 2 OPs

[perl5.git] / regcomp.sym

diff --git a/regcomp.sym b/regcomp.sym
index d48d57e..09a21e9 100644 (file)
--- a/regcomp.sym
+++ b/regcomp.sym
@@ -177,8 +177,8 @@ LONGJMP     LONGJMP,    off 1 . 1 ; Jump far away.
 BRANCHJ     BRANCHJ,    off 1 V 1 ; BRANCH with long offset.
 
 #*Special Case Regops
-IFMATCH     BRANCHJ,    off 1 . 1 ; Succeeds if the following matches.
-UNLESSM     BRANCHJ,    off 1 . 1 ; Fails if the following matches.
+IFMATCH     BRANCHJ,    off 1 . 1 ; Succeeds if the following matches; non-zero flags "f" means lookbehind assertion starting "f" characters before current
+UNLESSM     BRANCHJ,    off 1 . 1 ; Fails if the following matches; non-zero flags "f" means lookbehind assertion starting "f" characters before current
 SUSPEND     BRANCHJ,    off 1 V 1 ; "Independent" sub-RE.
 IFTHEN      BRANCHJ,    off 1 V 1 ; Switch, should be preceded by switcher.
 GROUPP      GROUPP,     num 1     ; Whether the group matched.