From: Lupe Christoph <lupe@lupe-christoph.de>
Date: Fri, 11 Aug 2000 00:30:27 +0000 (+0200)
Subject: Change the regx compilation error markers to use = instead of <
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=5aa4340e488ca15127d8181ea8476af4d9a9a491;p=p5sagit%2Fp5-mst-13.2.git

Change the regx compilation error markers to use = instead of <
since pod makes using the latter quite messy.  Reported in
ID 20000814.006 by Abigail and in
Subject: Unknown escape E<> ?
Message-ID: <20000811003027.F17420@alanya.lupe-christoph.de>

p4raw-id: //depot/perl@6653
---

diff --git a/pod/perldiag.pod b/pod/perldiag.pod
index 70daac2..11580f7 100644
--- a/pod/perldiag.pod
+++ b/pod/perldiag.pod
@@ -557,10 +557,10 @@ C<-i.bak>, or some such.
 characters and Perl was unable to create a unique filename during
 inplace editing with the B<-i> switch.  The file was ignored.
 
-=item Can't do {n,m} with n > m at <HERE< in regex m/%s/
+=item Can't do {n,m} with n > m at ===HERE=== in regex m/%s/
 
 (F) Minima must be less than or equal to maxima. If you really want your
-regexp to match something 0 times, just put {0}. The <HERE< shows in the
+regexp to match something 0 times, just put {0}. The ===HERE=== shows in the
 regular expression about where the problem was discovered. See L<perlre>.
 
 =item Can't do setegid!
@@ -1379,10 +1379,10 @@ some time before now.  Check your logic flow.  flock() operates on
 filehandles.  Are you attempting to call flock() on a dirhandle by the
 same name?
 
-=item Quantifier follows nothing at <HERE< in regex m/%s/
+=item Quantifier follows nothing at ===HERE=== in regex m/%s/
 
 (F) You started a regular expression with a quantifier. Backslash it if you
-meant it literally. The <HERE< shows in the regular expression about where the
+meant it literally. The ===HERE=== shows in the regular expression about where the
 problem was discovered. See L<perlre>.
 
 =item Format not terminated
@@ -1629,10 +1629,10 @@ transparently promotes all numbers to a floating point representation
 internally--subject to loss of precision errors in subsequent
 operations.
 
-=item Internal disaster at <HERE< in regex m/%s/
+=item Internal disaster at ===HERE=== in regex m/%s/
 
 (P) Something went badly wrong in the regular expression parser.
-The <HERE< shows in the regular expression about where the problem was
+The ===HERE=== shows in the regular expression about where the problem was
 discovered.
 
 
@@ -1645,9 +1645,9 @@ L<perlvms/"exec LIST">).  Somehow, this count has become scrambled, so
 Perl is making a guess and treating this C<exec> as a request to
 terminate the Perl script and execute the specified command.
 
-=item Internal urp at <HERE< in regex m/%s/
+=item Internal urp at ===HERE=== in regex m/%s/
 
-(P) Something went badly awry in the regular expression parser. The <HERE<
+(P) Something went badly awry in the regular expression parser. The ===HERE===
 shows in the regular expression about where the problem was discovered.
 
 
@@ -1753,10 +1753,10 @@ instead on the filehandle.)
 values cannot be returned in subroutines used in lvalue context.  See
 L<perlsub/"Lvalue subroutines">.
 
-=item Lookbehind longer than %d not implemented at <HERE< in reges m/%s/
+=item Lookbehind longer than %d not implemented at ===HERE=== in reges m/%s/
 
 (F) There is currently a limit on the length of string which lookbehind can
-handle. This restriction may be eased in a future release. The <HERE< shows in
+handle. This restriction may be eased in a future release. The ===HERE=== shows in
 the regular expression about where the problem was discovered.
        
 =item Malformed PERLLIB_PREFIX
@@ -1935,10 +1935,10 @@ provided for this purpose.
 (F) You tried to do a read/write/send/recv operation with a buffer
 length that is less than 0.  This is difficult to imagine.
 
-=item Nested quantifiers at <HERE< in regex m/%s/
+=item Nested quantifiers at ===HERE=== in regex m/%s/
 
 (F) You can't quantify a quantifier without intervening parentheses. So
-things like ** or +* or ?* are illegal. The <HERE< shows in the regular
+things like ** or +* or ?* are illegal. The ===HERE=== shows in the regular
 expression about where the problem was discovered.
 
 Note, however, that the minimal matching quantifiers, C<*?>, C<+?>, and
@@ -2704,13 +2704,13 @@ in L<perlos2>.
 (S unsafe) The subroutine being declared or defined had previously been
 declared or defined with a different function prototype.
 
-=item Quantifier in {,} bigger than %d at <HERE< in regex m/%s/
+=item Quantifier in {,} bigger than %d at ===HERE=== in regex m/%s/
 
 (F) There is currently a limit to the size of the min and max values of the
-{min,max} construct. The <HERE< shows in the regular expression about where
+{min,max} construct. The ===HERE=== shows in the regular expression about where
 the problem was discovered. See L<perlre>.
 
-=item Quantifier unexpected on zero-length expression at <HERE< in regex m/%s/
+=item Quantifier unexpected on zero-length expression at ===HERE=== in regex m/%s/
 
 (W regexp) You applied a regular expression quantifier in a place where
 it makes no sense, such as on a zero-width assertion.  Try putting the
@@ -2778,14 +2778,14 @@ Doing so has no effect.
 (W internal) The internal sv_replace() function was handed a new SV with
 a reference count of other than 1.
 
-=item Reference to nonexistant group at <HERE< in regex m/%s/
+=item Reference to nonexistant group at ===HERE=== in regex m/%s/
 
 (F) You used something like C<\7> in your regular expression, but there are
 not at least seven sets of capturing parentheses in the expression. If you
 wanted to have the character with value 7 inserted into the regular expression,
 prepend a zero to make the number at least two digits: C<\07>
 
-The <HERE< shows in the regular expression about where the problem was
+The ===HERE=== shows in the regular expression about where the problem was
 discovered.
 
 =item regexp memory corruption
@@ -2890,9 +2890,9 @@ scalar that had previously been marked as free.
 (W closed) The socket you're sending to got itself closed sometime
 before now.  Check your logic flow.
 
-=item Sequence (? incomplete at <HERE< mark in regex m/%s/
+=item Sequence (? incomplete at ===HERE=== mark in regex m/%s/
 
-(F) A regular expression ended with an incomplete extension (?. The <HERE<
+(F) A regular expression ended with an incomplete extension (?. The ===HERE===
 shows in the regular expression about where the problem was discovered. See
 L<perlre>.
 
@@ -2901,16 +2901,16 @@ L<perlre>.
 (F) If the contents of a (?{...}) clause contains braces, they must balance
 for Perl to properly detect the end of the clause. See L<perlre>.
 
-=item Sequence (?%s...) not implemented at <HERE< mark in regex m/%s/
+=item Sequence (?%s...) not implemented at ===HERE=== mark in regex m/%s/
 
 (F) A proposed regular expression extension has the character reserved but
-has not yet been written. The <HERE< shows in the regular expression about
+has not yet been written. The ===HERE=== shows in the regular expression about
 where the problem was discovered. See L<perlre>.
 
-=item Sequence (?%s...) not recognized at <HERE< mark in regex m/%s/
+=item Sequence (?%s...) not recognized at ===HERE=== mark in regex m/%s/
 
 (F) You used a regular expression extension that doesn't make sense.
-The <HERE< shows in the regular expression about
+The ===HERE=== shows in the regular expression about
 where the problem was discovered. 
 See L<perlre>.
 
@@ -3098,7 +3098,7 @@ assignment or as a subroutine argument for example).
 (F) Your Perl was compiled with B<-D>SETUID_SCRIPTS_ARE_SECURE_NOW, but
 a version of the setuid emulator somehow got run anyway.
 
-=item Switch (?(condition)... contains too many branches at <HERE< in regex m/%s/
+=item Switch (?(condition)... contains too many branches at ===HERE=== in regex m/%s/
 
 (F) A (?(condition)if-clause|else-clause) construct can have at most two
 branches (the if-clause and the else-clause). If you want one or both to
@@ -3107,13 +3107,13 @@ clustering parentheses:
 
     (?(condition)(?:this|that|other)|else-clause)
 
-The <HERE< shows in the regular expression about where the problem was
+The ===HERE=== shows in the regular expression about where the problem was
 discovered. See L<perlre>.
 
-=item Switch condition not recognized at <HERE< in regex m/%s/
+=item Switch condition not recognized at ===HERE=== in regex m/%s/
 
 (F) If the argument to the (?(...)if-clause|else-clause) construct is a
-number, it can be only a number. The <HERE< shows in the regular expression
+number, it can be only a number. The ===HERE=== shows in the regular expression
 about where the problem was discovered. See L<perlre>.
 
 =item switching effective %s is not implemented
@@ -3391,7 +3391,7 @@ representative, who probably put it there in the first place.
 (F) There are no byte-swapping functions for a machine with this byte
 order.
 
-=item Unknown switch condition (?(%.2s at <HERE< in regex m/%s/
+=item Unknown switch condition (?(%.2s at ===HERE=== in regex m/%s/
 
 (F) The condition of a (?(condition)if-clause|else-clause) construct is not
 known. The condition may be lookaround (the condition is true if the
@@ -3399,7 +3399,7 @@ lookaround is true), a (?{...}) construct (the condition is true if the
 code evaluates to a true value), or a number (the condition is true if the
 set of capturing parentheses named by the number is defined).
 
-The <HERE< shows in the regular expression about where the problem was
+The ===HERE=== shows in the regular expression about where the problem was
 discovered.  See L<perlre>.
 
 =item Unknown open() mode '%s'
@@ -3415,14 +3415,14 @@ iterating over it, and someone else stuck a message in the stream of
 data Perl expected.  Someone's very confused, or perhaps trying to
 subvert Perl's population of %ENV for nefarious purposes.
 
-=item unmatched [ at <HERE< mark in regex m/%s/
+=item unmatched [ at ===HERE=== mark in regex m/%s/
 
 (F) The brackets around a character class must match. If you wish to
 include a closing bracket in a character class, backslash it or put it
-first. See L<perlre>. The <HERE< shows in the regular expression about
+first. See L<perlre>. The ===HERE=== shows in the regular expression about
 where the escape was discovered.
 
-=item unmatched ( in regexp at <HERE< mark in regex m/%s/
+=item unmatched ( in regexp at ===HERE=== mark in regex m/%s/
 
 (F) Unbackslashed parentheses must always be balanced in regular
 expressions.  If you're a vi user, the % key is valuable for finding the
@@ -3454,12 +3454,12 @@ script, a binary program, or a directory as a Perl program.
 recognized by Perl inside character classes.  The character was
 understood literally.
 
-=item Unrecognized escape \\%c passed through at <HERE< in m/%s/
+=item Unrecognized escape \\%c passed through at ===HERE=== in m/%s/
 
 (W regexp) You used a backslash-character combination which is not
 recognized by Perl. This combination appears in an interpolated variable or
 a C<'>-delimited regular expression. The character was understood
-literally. The <HERE< shows in the regular expression about where the escape
+literally. The ===HERE=== shows in the regular expression about where the escape
 was discovered.
 
 
@@ -3748,10 +3748,10 @@ anonymous, using the C<sub {}> syntax.  When inner anonymous subs that
 reference variables in outer subroutines are called or referenced, they
 are automatically rebound to the current values of such variables.
 
-=item Variable length lookbehind not implemented at <HERE< in regex m/%s/
+=item Variable length lookbehind not implemented at ===HERE=== in regex m/%s/
 
 (F) Lookbehind is allowed only for subexpressions whose length is fixed and
-known at compile time. The <HERE< shows in the regular expression about where
+known at compile time. The ===HERE=== shows in the regular expression about where
 the problem was discovered.
 
 =item Version number must be a constant number
diff --git a/regcomp.c b/regcomp.c
index 2da9911..0217657 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -210,8 +210,8 @@ static scan_data_t zero_scan_data = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  * of t/op/regmesg.t, the tests in t/op/re_tests, and those in
  * op/pragma/warn/regcomp.
  */
-#define MARKER1 "<HERE<"      /* marker as it appears in the description */
-#define MARKER2 " <<<HERE<<< "  /* marker as it appears within the regex */
+#define MARKER1 "=HERE="      /* marker as it appears in the description */
+#define MARKER2 " ===HERE=== "  /* marker as it appears within the regex */
    
 #define REPORT_LOCATION " at " MARKER1 " mark in regex m/%.*s" MARKER2 "%s/"
 
diff --git a/t/op/misc.t b/t/op/misc.t
index 900e014..e15b653 100755
--- a/t/op/misc.t
+++ b/t/op/misc.t
@@ -346,7 +346,7 @@ print "you die joe!\n" unless "@x" eq 'x y z';
 /(?{"{"})/	# Check it outside of eval too
 EXPECT
 Sequence (?{...}) not terminated or not {}-balanced at - line 1, within pattern
-Sequence (?{...}) not terminated or not {}-balanced at <HERE< mark in regex m/(?{ <<<HERE<<< "{"})/ at - line 1.
+Sequence (?{...}) not terminated or not {}-balanced at =HERE= mark in regex m/(?{ ===HERE=== "{"})/ at - line 1.
 ########
 /(?{"{"}})/	# Check it outside of eval too
 EXPECT
diff --git a/t/op/re_tests b/t/op/re_tests
index 246a838..4add4dc 100644
--- a/t/op/re_tests
+++ b/t/op/re_tests
@@ -45,9 +45,9 @@ a[b-d]e	ace	y	$&	ace
 a[b-d]	aac	y	$&	ac
 a[-b]	a-	y	$&	a-
 a[b-]	a-	y	$&	a-
-a[b-a]	-	c	-	Invalid [] range "b-a" at <HERE< mark in regex m/a[b-a <<<HERE<<< ]/
-a[]b	-	c	-	Unmatched [ at <HERE< mark in regex m/a[ <<<HERE<<< ]b/ at (eval 96) line 1, <TESTS> line 49.
-a[	-	c	-	Unmatched [ at <HERE< mark in regex m/a[ <<<HERE<<< / at (eval 97) line 1, <TESTS> line 50.
+a[b-a]	-	c	-	Invalid [] range "b-a" at =HERE= mark in regex m/a[b-a ===HERE=== ]/
+a[]b	-	c	-	Unmatched [ at =HERE= mark in regex m/a[ ===HERE=== ]b/ at (eval 96) line 1, <TESTS> line 49.
+a[	-	c	-	Unmatched [ at =HERE= mark in regex m/a[ ===HERE=== / at (eval 97) line 1, <TESTS> line 50.
 a]	a]	y	$&	a]
 a[]]b	a]b	y	$&	a]b
 a[^bc]d	aed	y	$&	aed
@@ -95,21 +95,21 @@ a[\S]b	a-b	y	-	-
 ab|cd	abc	y	$&	ab
 ab|cd	abcd	y	$&	ab
 ()ef	def	y	$&-$1	ef-
-*a	-	c	-	Quantifier follows nothing at <HERE< mark in regex m/* <<<HERE<<< a/ at (eval 192) line 1, <TESTS> line 98.
-(*)b	-	c	-	Quantifier follows nothing at <HERE< mark in regex m/(* <<<HERE<<< )b/ at (eval 193) line 1, <TESTS> line 99.
+*a	-	c	-	Quantifier follows nothing at =HERE= mark in regex m/* ===HERE=== a/ at (eval 192) line 1, <TESTS> line 98.
+(*)b	-	c	-	Quantifier follows nothing at =HERE= mark in regex m/(* ===HERE=== )b/ at (eval 193) line 1, <TESTS> line 99.
 $b	b	n	-	-
 a\	-	c	-	Search pattern not terminated
 a\(b	a(b	y	$&-$1	a(b-
 a\(*b	ab	y	$&	ab
 a\(*b	a((b	y	$&	a((b
 a\\b	a\b	y	$&	a\b
-abc)	-	c	-	Unmatched ) at <HERE< mark in regex m/abc) <<<HERE<<< / at (eval 205) line 1, <TESTS> line 106.
-(abc	-	c	-	Unmatched ( at <HERE< mark in regex m/( <<<HERE<<< abc/ at (eval 206) line 1, <TESTS> line 107.
+abc)	-	c	-	Unmatched ) at =HERE= mark in regex m/abc) ===HERE=== / at (eval 205) line 1, <TESTS> line 106.
+(abc	-	c	-	Unmatched ( at =HERE= mark in regex m/( ===HERE=== abc/ at (eval 206) line 1, <TESTS> line 107.
 ((a))	abc	y	$&-$1-$2	a-a-a
 (a)b(c)	abc	y	$&-$1-$2	abc-a-c
 a+b+c	aabbabc	y	$&	abc
 a{1,}b{1,}c	aabbabc	y	$&	abc
-a**	-	c	-	Nested quantifiers at <HERE< mark in regex m/a** <<<HERE<<< / at (eval 215) line 1, <TESTS> line 112.
+a**	-	c	-	Nested quantifiers at =HERE= mark in regex m/a** ===HERE=== / at (eval 215) line 1, <TESTS> line 112.
 a.+?c	abcabc	y	$&	abc
 (a+|b)*	ab	y	$&-$1	ab-b
 (a+|b){0,}	ab	y	$&-$1	ab-b
@@ -117,7 +117,7 @@ a.+?c	abcabc	y	$&	abc
 (a+|b){1,}	ab	y	$&-$1	ab-b
 (a+|b)?	ab	y	$&-$1	a-a
 (a+|b){0,1}	ab	y	$&-$1	a-a
-)(	-	c	-	Unmatched ) at <HERE< mark in regex m/) <<<HERE<<< (/ at (eval 230) line 1, <TESTS> line 120.
+)(	-	c	-	Unmatched ) at =HERE= mark in regex m/) ===HERE=== (/ at (eval 230) line 1, <TESTS> line 120.
 [^ab]*	cde	y	$&	cde
 abc		n	-	-
 a*		y	$&	
@@ -218,9 +218,9 @@ a[-]?c	ac	y	$&	ac
 'a[b-d]'i	AAC	y	$&	AC
 'a[-b]'i	A-	y	$&	A-
 'a[b-]'i	A-	y	$&	A-
-'a[b-a]'i	-	c	-	Invalid [] range "b-a" at <HERE< mark in regex m/a[b-a <<<HERE<<< ]/
-'a[]b'i	-	c	-	Unmatched [ at <HERE< mark in regex m/a[ <<<HERE<<< ]b/ at (eval 431) line 1, <TESTS> line 222.
-'a['i	-	c	-	Unmatched [ at <HERE< mark in regex m/a[ <<<HERE<<< / at (eval 432) line 1, <TESTS> line 223.
+'a[b-a]'i	-	c	-	Invalid [] range "b-a" at =HERE= mark in regex m/a[b-a ===HERE=== ]/
+'a[]b'i	-	c	-	Unmatched [ at =HERE= mark in regex m/a[ ===HERE=== ]b/ at (eval 431) line 1, <TESTS> line 222.
+'a['i	-	c	-	Unmatched [ at =HERE= mark in regex m/a[ ===HERE=== / at (eval 432) line 1, <TESTS> line 223.
 'a]'i	A]	y	$&	A]
 'a[]]b'i	A]B	y	$&	A]B
 'a[^bc]d'i	AED	y	$&	AED
@@ -232,21 +232,21 @@ a[-]?c	ac	y	$&	ac
 'ab|cd'i	ABC	y	$&	AB
 'ab|cd'i	ABCD	y	$&	AB
 '()ef'i	DEF	y	$&-$1	EF-
-'*a'i	-	c	-	Quantifier follows nothing at <HERE< mark in regex m/* <<<HERE<<< a/ at (eval 455) line 1, <TESTS> line 235.
-'(*)b'i	-	c	-	Quantifier follows nothing at <HERE< mark in regex m/(* <<<HERE<<< )b/ at (eval 456) line 1, <TESTS> line 236.
+'*a'i	-	c	-	Quantifier follows nothing at =HERE= mark in regex m/* ===HERE=== a/ at (eval 455) line 1, <TESTS> line 235.
+'(*)b'i	-	c	-	Quantifier follows nothing at =HERE= mark in regex m/(* ===HERE=== )b/ at (eval 456) line 1, <TESTS> line 236.
 '$b'i	B	n	-	-
 'a\'i	-	c	-	Search pattern not terminated
 'a\(b'i	A(B	y	$&-$1	A(B-
 'a\(*b'i	AB	y	$&	AB
 'a\(*b'i	A((B	y	$&	A((B
 'a\\b'i	A\B	y	$&	A\B
-'abc)'i	-	c	-	Unmatched ) at <HERE< mark in regex m/abc) <<<HERE<<< / at (eval 468) line 1, <TESTS> line 243.
-'(abc'i	-	c	-	Unmatched ( at <HERE< mark in regex m/( <<<HERE<<< abc/ at (eval 469) line 1, <TESTS> line 244.
+'abc)'i	-	c	-	Unmatched ) at =HERE= mark in regex m/abc) ===HERE=== / at (eval 468) line 1, <TESTS> line 243.
+'(abc'i	-	c	-	Unmatched ( at =HERE= mark in regex m/( ===HERE=== abc/ at (eval 469) line 1, <TESTS> line 244.
 '((a))'i	ABC	y	$&-$1-$2	A-A-A
 '(a)b(c)'i	ABC	y	$&-$1-$2	ABC-A-C
 'a+b+c'i	AABBABC	y	$&	ABC
 'a{1,}b{1,}c'i	AABBABC	y	$&	ABC
-'a**'i	-	c	-	Nested quantifiers at <HERE< mark in regex m/a** <<<HERE<<< / at (eval 478) line 1, <TESTS> line 249.
+'a**'i	-	c	-	Nested quantifiers at =HERE= mark in regex m/a** ===HERE=== / at (eval 478) line 1, <TESTS> line 249.
 'a.+?c'i	ABCABC	y	$&	ABC
 'a.*?c'i	ABCABC	y	$&	ABC
 'a.{0,5}?c'i	ABCABC	y	$&	ABC
@@ -257,7 +257,7 @@ a[-]?c	ac	y	$&	ac
 '(a+|b)?'i	AB	y	$&-$1	A-A
 '(a+|b){0,1}'i	AB	y	$&-$1	A-A
 '(a+|b){0,1}?'i	AB	y	$&-$1	-
-')('i	-	c	-	Unmatched ) at <HERE< mark in regex m/) <<<HERE<<< (/ at (eval 499) line 1, <TESTS> line 260.
+')('i	-	c	-	Unmatched ) at =HERE= mark in regex m/) ===HERE=== (/ at (eval 499) line 1, <TESTS> line 260.
 '[^ab]*'i	CDE	y	$&	CDE
 'abc'i		n	-	-
 'a*'i		y	$&	
@@ -346,7 +346,7 @@ a(?:b|(c|e){1,2}?|d)+?(.)	ace	y	$1$2	ce
 (?<!c)b	cb	n	-	-
 (?<!c)b	b	y	-	-
 (?<!c)b	b	y	$&	b
-(?<%)b	-	c	-	Sequence (?<%...) not recognized at <HERE< mark in regex m/(?<% <<<HERE<<< )b/
+(?<%)b	-	c	-	Sequence (?<%...) not recognized at =HERE= mark in regex m/(?<% ===HERE=== )b/
 (?:..)*a	aba	y	$&	aba
 (?:..)*?a	aba	y	$&	a
 ^(?:b|a(?=(.)))*\1	abc	y	$&	ab
@@ -397,10 +397,10 @@ a(?:b|(c|e){1,2}?|d)+?(.)	ace	y	$1$2	ce
 '(ab)\d\1'i	ab4Ab	y	$1	ab
 foo\w*\d{4}baz	foobar1234baz	y	$&	foobar1234baz
 a(?{})b	cabd	y	$&	ab
-a(?{)b	-	c	-	Sequence (?{...}) not terminated or not {}-balanced at <HERE< mark in regex m/a(?{ <<<HERE<<< )b/ at (eval 780) line 1, <TESTS> line 400.
-a(?{{})b	-	c	-	Sequence (?{...}) not terminated or not {}-balanced at <HERE< mark in regex m/a(?{ <<<HERE<<< {})b/ at (eval 781) line 1, <TESTS> line 401.
+a(?{)b	-	c	-	Sequence (?{...}) not terminated or not {}-balanced at =HERE= mark in regex m/a(?{ ===HERE=== )b/ at (eval 780) line 1, <TESTS> line 400.
+a(?{{})b	-	c	-	Sequence (?{...}) not terminated or not {}-balanced at =HERE= mark in regex m/a(?{ ===HERE=== {})b/ at (eval 781) line 1, <TESTS> line 401.
 a(?{}})b	-	c	-	
-a(?{"{"})b	-	c	-	Sequence (?{...}) not terminated or not {}-balanced at <HERE< mark in regex m/a(?{ <<<HERE<<< "{"})b/ at (eval 783) line 1, <TESTS> line 403.
+a(?{"{"})b	-	c	-	Sequence (?{...}) not terminated or not {}-balanced at =HERE= mark in regex m/a(?{ ===HERE=== "{"})b/ at (eval 783) line 1, <TESTS> line 403.
 a(?{"\{"})b	cabd	y	$&	ab
 a(?{"{"}})b	-	c	-	Unmatched right curly bracket
 a(?{$bl="\{"}).b	caxbd	y	$bl	{
@@ -441,7 +441,7 @@ x(~~)*(?:(?:F)?)?	x~~	y	-	-
 ^(\(+)?blah(?(1)(\)))$	blah	y	($2)	()
 ^(\(+)?blah(?(1)(\)))$	blah)	n	-	-
 ^(\(+)?blah(?(1)(\)))$	(blah	n	-	-
-(?(1?)a|b)	a	c	-	Switch condition not recognized at <HERE< mark in regex m/(?(1? <<<HERE<<< )a|b)/ at (eval 868) line 1, <TESTS> line 444.
+(?(1?)a|b)	a	c	-	Switch condition not recognized at =HERE= mark in regex m/(?(1? ===HERE=== )a|b)/ at (eval 868) line 1, <TESTS> line 444.
 (?(1)a|b|c)	a	c	-	Switch (?(condition)... contains too many branches
 (?(?{0})a|b)	a	n	-	-
 (?(?{0})b|a)	a	y	$&	a
@@ -473,10 +473,10 @@ $(?<=^(a))	a	y	$1	a
 ([[:]+)	a:[b]:	y	$1	:[
 ([[=]+)	a=[b]=	y	$1	=[
 ([[.]+)	a.[b].	y	$1	.[
-[a[:xyz:	-	c	-	Unmatched [ at <HERE< mark in regex m/[ <<<HERE<<< a[:xyz:/ at (eval 950) line 1, <TESTS> line 476.
-[a[:xyz:]	-	c	-	POSIX class [:xyz:] unknown at <HERE< mark in regex m/[a[:xyz:] <<<HERE<<< /
+[a[:xyz:	-	c	-	Unmatched [ at =HERE= mark in regex m/[ ===HERE=== a[:xyz:/ at (eval 950) line 1, <TESTS> line 476.
+[a[:xyz:]	-	c	-	POSIX class [:xyz:] unknown at =HERE= mark in regex m/[a[:xyz:] ===HERE=== /
 [a[:]b[:c]	abc	y	$&	abc
-([a[:xyz:]b]+)	pbaq	c	-	POSIX class [:xyz:] unknown at <HERE< mark in regex m/([a[:xyz:] <<<HERE<<< b]+)/
+([a[:xyz:]b]+)	pbaq	c	-	POSIX class [:xyz:] unknown at =HERE= mark in regex m/([a[:xyz:] ===HERE=== b]+)/
 [a[:]b[:c]	abc	y	$&	abc
 ([[:alpha:]]+)	ABcd01Xy__--  ${nulnul}${ffff}	y	$1	ABcd
 ([[:alnum:]]+)	ABcd01Xy__--  ${nulnul}${ffff}	y	$1	ABcd01Xy
@@ -503,8 +503,8 @@ $(?<=^(a))	a	y	$1	a
 ([[:^word:]]+)	ABcd01Xy__--  ${nulnul}${ffff}	y	$1	--  ${nulnul}${ffff}
 ([[:^upper:]]+)	ABcd01Xy__--  ${nulnul}${ffff}	y	$1	cd01
 ([[:^xdigit:]]+)	ABcd01Xy__--  ${nulnul}${ffff}	y	$1	Xy__--  ${nulnul}${ffff}
-[[:foo:]]	-	c	-	POSIX class [:foo:] unknown at <HERE< mark in regex m/[[:foo:] <<<HERE<<< ]/
-[[:^foo:]]	-	c	-	POSIX class [:^foo:] unknown at <HERE< mark in regex m/[[:^foo:] <<<HERE<<< ]/
+[[:foo:]]	-	c	-	POSIX class [:foo:] unknown at =HERE= mark in regex m/[[:foo:] ===HERE=== ]/
+[[:^foo:]]	-	c	-	POSIX class [:^foo:] unknown at =HERE= mark in regex m/[[:^foo:] ===HERE=== ]/
 ((?>a+)b)	aaab	y	$1	aaab
 (?>(a+))b	aaab	y	$1	aaa
 ((?>[^()]+)|\([^()]*\))+	((abc(ade)ufh()()x	y	$&	abc(ade)ufh()()x
diff --git a/t/op/regmesg.t b/t/op/regmesg.t
index 4a67bbb..2aaca5c 100644
--- a/t/op/regmesg.t
+++ b/t/op/regmesg.t
@@ -13,8 +13,8 @@ my $debug = 1;
 ## arrays below. The {#} is a meta-marker -- it marks where the marker should
 ## go.
 
-my $marker1 = "<HERE<";
-my $marker2 = " <<<HERE<<< ";
+my $marker1 = "=HERE=";
+my $marker2 = " ===HERE=== ";
 
 ##
 ## Key-value pairs of code/error of code that should have fatal errors.
diff --git a/t/pragma/warn/regcomp b/t/pragma/warn/regcomp
index 82b9b53..fd12445 100644
--- a/t/pragma/warn/regcomp
+++ b/t/pragma/warn/regcomp
@@ -29,7 +29,7 @@ $a =~ /(?=a)*/ ;
 no warnings 'regexp' ;
 $a =~ /(?=a)*/ ;
 EXPECT
-(?=a)* matches null string many times at <HERE< mark in regex m/(?=a)* <<<HERE<<< / at - line 4.
+(?=a)* matches null string many times at =HERE= mark in regex m/(?=a)* ===HERE=== / at - line 4.
 ########
 # regcomp.c [S_study_chunk]
 use warnings 'regexp' ;
@@ -38,7 +38,7 @@ $_ = "" ;
 no warnings 'regexp' ;
 /(?=a)?/;
 EXPECT
-Quantifier unexpected on zero-length expression at <HERE< mark in regex m/(?=a)? <<<HERE<<< / at - line 4.
+Quantifier unexpected on zero-length expression at =HERE= mark in regex m/(?=a)? ===HERE=== / at - line 4.
 ########
 # regcomp.c [S_regatom]
 $x = '\m' ;
@@ -47,7 +47,7 @@ $a =~ /a$x/ ;
 no warnings 'regexp' ;
 $a =~ /a$x/ ;
 EXPECT
-Unrecognized escape \m passed through at <HERE< mark in regex m/a\m <<<HERE<<< / at - line 4.
+Unrecognized escape \m passed through at =HERE= mark in regex m/a\m ===HERE=== / at - line 4.
 ########
 # regcomp.c [S_regpposixcc S_checkposixcc]
 BEGIN { $ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3 }
@@ -61,9 +61,9 @@ no warnings 'regexp' ;
 /[:zog:]/;
 /[[:zog:]]/;
 EXPECT
-POSIX syntax [: :] belongs inside character classes at <HERE< mark in regex m/[:alpha:] <<<HERE<<< / at - line 5.
-POSIX syntax [: :] belongs inside character classes at <HERE< mark in regex m/[:zog:] <<<HERE<<< / at - line 6.
-POSIX class [:zog:] unknown at <HERE< mark in regex m/[[:zog:] <<<HERE<<< ]/
+POSIX syntax [: :] belongs inside character classes at =HERE= mark in regex m/[:alpha:] ===HERE=== / at - line 5.
+POSIX syntax [: :] belongs inside character classes at =HERE= mark in regex m/[:zog:] ===HERE=== / at - line 6.
+POSIX class [:zog:] unknown at =HERE= mark in regex m/[[:zog:] ===HERE=== ]/
 ########
 # regcomp.c [S_checkposixcc]
 BEGIN { $ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3 }
@@ -73,8 +73,8 @@ $_ = "" ;
 no warnings 'regexp' ;
 /[.zog.]/;
 EXPECT
-POSIX syntax [. .] belongs inside character classes at <HERE< mark in regex m/[.zog.] <<<HERE<<< / at - line 5.
-POSIX syntax [. .] is reserved for future extensions at <HERE< mark in regex m/[.zog.] <<<HERE<<< /
+POSIX syntax [. .] belongs inside character classes at =HERE= mark in regex m/[.zog.] ===HERE=== / at - line 5.
+POSIX syntax [. .] is reserved for future extensions at =HERE= mark in regex m/[.zog.] ===HERE=== /
 ########
 # regcomp.c [S_checkposixcc]
 BEGIN { $ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3 }
@@ -84,7 +84,7 @@ $_ = "" ;
 no warnings 'regexp' ;
 /[[.zog.]]/;
 EXPECT
-POSIX syntax [. .] is reserved for future extensions at <HERE< mark in regex m/[[.zog.] <<<HERE<<< ]/
+POSIX syntax [. .] is reserved for future extensions at =HERE= mark in regex m/[[.zog.] ===HERE=== ]/
 ########
 # regcomp.c [S_regclass]
 $_ = "";
@@ -109,14 +109,14 @@ no warnings 'regexp' ;
 /[[:alpha:]-[:digit:]]/;
 /[[:digit:]-[:alpha:]]/;
 EXPECT
-False [] range "a-\d" at <HERE< mark in regex m/[a-\d <<<HERE<<< ]/ at - line 5.
-False [] range "\d-" at <HERE< mark in regex m/[\d- <<<HERE<<< b]/ at - line 6.
-False [] range "\s-" at <HERE< mark in regex m/[\s- <<<HERE<<< \d]/ at - line 7.
-False [] range "\d-" at <HERE< mark in regex m/[\d- <<<HERE<<< \s]/ at - line 8.
-False [] range "a-[:digit:]" at <HERE< mark in regex m/[a-[:digit:] <<<HERE<<< ]/ at - line 9.
-False [] range "[:digit:]-" at <HERE< mark in regex m/[[:digit:]- <<<HERE<<< b]/ at - line 10.
-False [] range "[:alpha:]-" at <HERE< mark in regex m/[[:alpha:]- <<<HERE<<< [:digit:]]/ at - line 11.
-False [] range "[:digit:]-" at <HERE< mark in regex m/[[:digit:]- <<<HERE<<< [:alpha:]]/ at - line 12.
+False [] range "a-\d" at =HERE= mark in regex m/[a-\d ===HERE=== ]/ at - line 5.
+False [] range "\d-" at =HERE= mark in regex m/[\d- ===HERE=== b]/ at - line 6.
+False [] range "\s-" at =HERE= mark in regex m/[\s- ===HERE=== \d]/ at - line 7.
+False [] range "\d-" at =HERE= mark in regex m/[\d- ===HERE=== \s]/ at - line 8.
+False [] range "a-[:digit:]" at =HERE= mark in regex m/[a-[:digit:] ===HERE=== ]/ at - line 9.
+False [] range "[:digit:]-" at =HERE= mark in regex m/[[:digit:]- ===HERE=== b]/ at - line 10.
+False [] range "[:alpha:]-" at =HERE= mark in regex m/[[:alpha:]- ===HERE=== [:digit:]]/ at - line 11.
+False [] range "[:digit:]-" at =HERE= mark in regex m/[[:digit:]- ===HERE=== [:alpha:]]/ at - line 12.
 ########
 # regcomp.c [S_regclassutf8]
 BEGIN {
@@ -148,14 +148,14 @@ no warnings 'regexp' ;
 /[[:alpha:]-[:digit:]]/;
 /[[:digit:]-[:alpha:]]/;
 EXPECT
-False [] range "a-\d" at <HERE< mark in regex m/[a-\d <<<HERE<<< ]/ at - line 12.
-False [] range "\d-" at <HERE< mark in regex m/[\d- <<<HERE<<< b]/ at - line 13.
-False [] range "\s-" at <HERE< mark in regex m/[\s- <<<HERE<<< \d]/ at - line 14.
-False [] range "\d-" at <HERE< mark in regex m/[\d- <<<HERE<<< \s]/ at - line 15.
-False [] range "a-[:digit:]" at <HERE< mark in regex m/[a-[:digit:] <<<HERE<<< ]/ at - line 16.
-False [] range "[:digit:]-" at <HERE< mark in regex m/[[:digit:]- <<<HERE<<< b]/ at - line 17.
-False [] range "[:alpha:]-" at <HERE< mark in regex m/[[:alpha:]- <<<HERE<<< [:digit:]]/ at - line 18.
-False [] range "[:digit:]-" at <HERE< mark in regex m/[[:digit:]- <<<HERE<<< [:alpha:]]/ at - line 19.
+False [] range "a-\d" at =HERE= mark in regex m/[a-\d ===HERE=== ]/ at - line 12.
+False [] range "\d-" at =HERE= mark in regex m/[\d- ===HERE=== b]/ at - line 13.
+False [] range "\s-" at =HERE= mark in regex m/[\s- ===HERE=== \d]/ at - line 14.
+False [] range "\d-" at =HERE= mark in regex m/[\d- ===HERE=== \s]/ at - line 15.
+False [] range "a-[:digit:]" at =HERE= mark in regex m/[a-[:digit:] ===HERE=== ]/ at - line 16.
+False [] range "[:digit:]-" at =HERE= mark in regex m/[[:digit:]- ===HERE=== b]/ at - line 17.
+False [] range "[:alpha:]-" at =HERE= mark in regex m/[[:alpha:]- ===HERE=== [:digit:]]/ at - line 18.
+False [] range "[:digit:]-" at =HERE= mark in regex m/[[:digit:]- ===HERE=== [:alpha:]]/ at - line 19.
 ########
 # regcomp.c [S_regclass S_regclassutf8]
 use warnings 'regexp' ;
@@ -163,5 +163,5 @@ $a =~ /[a\zb]/ ;
 no warnings 'regexp' ;
 $a =~ /[a\zb]/ ;
 EXPECT
-Unrecognized escape \z in character class passed through at <HERE< mark in regex m/[a\z <<<HERE<<< b]/ at - line 3.
+Unrecognized escape \z in character class passed through at =HERE= mark in regex m/[a\z ===HERE=== b]/ at - line 3.