[perl #71748] Bleadperl f0e67a1 breaks CPAN: Template::Plugin::YAML::Encode 0.02

Unsurprisingly, the nature of the bug is that I accidentally changed
the logic of one of the several types of space skipping.  Fix attached.

diff --git a/t/comp/parser.t b/t/comp/parser.t
index 16d7b82..8fd9453 100644 (file)
--- a/t/comp/parser.t
+++ b/t/comp/parser.t
@@ -3,7 +3,7 @@
 # Checks if the parser behaves correctly in edge cases
 # (including weird syntax errors)
 
-print "1..121\n";
+print "1..122\n";
 
 sub failed {
     my ($got, $expected, $name) = @_;
@@ -341,6 +341,18 @@ like($@, qr/BEGIN failed--compilation aborted/, 'BEGIN 7' );
   is(defined &zlonk, '', 'but no body defined');
 }
 
+# bug #71748
+eval q{
+       $_ = "";
+       s/(.)/
+       {
+           #
+       }->{$1};
+       /e;
+       1;
+};
+is($@, "", "multiline whitespace inside substitute expression");
+
 # Add new tests HERE:
 
 # More awkward tests for #line. Keep these at the end, as they will screw

diff --git a/toke.c b/toke.c
index 4950958..1398439 100644 (file)
--- a/toke.c
+++ b/toke.c
@@ -1401,12 +1401,14 @@ chunk will not be discarded.
 =cut
 */
 
+#define LEX_NO_NEXT_CHUNK 0x80000000
+
 void
 Perl_lex_read_space(pTHX_ U32 flags)
 {
     char *s, *bufend;
     bool need_incline = 0;
-    if (flags & ~(LEX_KEEP_PREVIOUS))
+    if (flags & ~(LEX_KEEP_PREVIOUS|LEX_NO_NEXT_CHUNK))
        Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_space");
 #ifdef PERL_MAD
     if (PL_skipwhite) {
@@ -1439,6 +1441,8 @@ Perl_lex_read_space(pTHX_ U32 flags)
            if (PL_madskills)
                sv_catpvn(PL_skipwhite, PL_parser->bufptr, s-PL_parser->bufptr);
 #endif /* PERL_MAD */
+           if (flags & LEX_NO_NEXT_CHUNK)
+               break;
            PL_parser->bufptr = s;
            CopLINE_inc(PL_curcop);
            got_more = lex_next_chunk(flags);
@@ -1714,20 +1718,12 @@ S_skipspace(pTHX_ register char *s)
     if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) {
        while (s < PL_bufend && SPACE_OR_TAB(*s))
            s++;
-    } else if (PL_sublex_info.sub_inwhat || PL_lex_state == LEX_FORMLINE) {
-       while (isSPACE(*s) && *s != '\n')
-           s++;
-       if (*s == '#') {
-           do {
-               s++;
-           } while (s != PL_bufend && *s != '\n');
-       }
-       if (*s == '\n')
-           s++;
     } else {
        STRLEN bufptr_pos = PL_bufptr - SvPVX(PL_linestr);
        PL_bufptr = s;
-       lex_read_space(LEX_KEEP_PREVIOUS);
+       lex_read_space(LEX_KEEP_PREVIOUS |
+               (PL_sublex_info.sub_inwhat || PL_lex_state == LEX_FORMLINE ?
+                   LEX_NO_NEXT_CHUNK : 0));
        s = PL_bufptr;
        PL_bufptr = SvPVX(PL_linestr) + bufptr_pos;
        if (PL_linestart > PL_bufptr)