From 63129c32929f9cd0604268d5bb28cbbb7c02b983 Mon Sep 17 00:00:00 2001
From: Steve Hancock <perltidy@users.sourceforge.net>
Date: Sun, 7 Mar 2021 05:49:10 -0800
Subject: [PATCH] Fix problem with combination -lp and -wbb='='

---
 lib/Perl/Tidy/Formatter.pm | 16 ++++++++++++++--
 local-docs/BugLog.pod      | 31 ++++++++++++++++++++++++++++++-
 2 files changed, 44 insertions(+), 3 deletions(-)

diff --git a/lib/Perl/Tidy/Formatter.pm b/lib/Perl/Tidy/Formatter.pm
index 7585b383..444d2175 100644
--- a/lib/Perl/Tidy/Formatter.pm
+++ b/lib/Perl/Tidy/Formatter.pm
@@ -10842,6 +10842,10 @@ sub compare_indentation_levels {
 
         return unless defined $i && $i >= 0;
 
+        # Back up at a blank in case we need an = break.
+        # This is a backup fix for cases like b932.
+        if ( $i > 0 && $types_to_go[$i] eq 'b' ) { $i-- }
+
         # no breaks between welded tokens
         return if ( $self->weld_len_right_to_go($i) );
 
@@ -15496,8 +15500,16 @@ sub set_continuation_breaks {
                                 my $test2 = $nesting_depth_to_go[$i_start_2];
                                 if ( $test2 == $test1 ) {
 
-                                    $self->set_forced_breakpoint(
-                                        $i_start_2 - 1 );
+                                    # Back up at a blank (fixes case b932)
+                                    my $ibr = $i_start_2 - 1;
+                                    if (   $ibr > 0
+                                        && $types_to_go[$ibr] eq 'b' )
+                                    {
+                                        $ibr--;
+                                    }
+
+                                    $self->set_forced_breakpoint($ibr);
+
                                 }
                             } ## end if ( defined($i_start_2...))
                         } ## end if ( defined($item) )
diff --git a/local-docs/BugLog.pod b/local-docs/BugLog.pod
index 0c469274..348eaaac 100644
--- a/local-docs/BugLog.pod
+++ b/local-docs/BugLog.pod
@@ -2,6 +2,35 @@
 
 =over 4
 
+=item B<Fix problem with combination -lp and -wbb='='>
+
+Random testing produced case b932 in which the combination -lp and -wbb='='
+was not stable. 
+
+File 'b932.par' is:
+
+    --line-up-parentheses
+    --maximum-line-length=51
+    --want-break-before='='
+
+File 'b932.in' in the desired state is:
+
+    my @parts
+      = decompose( '(\s+|/|\!|=)',
+                   $line, undef, 1, undef, '["\']' );
+
+The alternate state is
+
+    my @parts = decompose( '(\s+|/|\!|=)',
+                     $line, undef, 1, undef, '["\']' );
+
+The problem was that the -lp code which set a line break at the equals did not
+check the -wba flag setting.
+
+This update fixes case b932.
+
+7 Mar 2021.
+
 =item B<Fix edge formatting cases with parameter -bbx=2>
 
 Random testing produced some cases where formatting with parameters of the form
@@ -11,7 +40,7 @@ list for this particular flag to be a list with at least one non-terminal
 line-ending comma.  This insures that the list will remain broken on subsequent
 iterations.  This fixes cases b789 and b938.
 
-6 Mar 2021.
+6 Mar 2021, 360d669.
 
 =item B<Add flag -fpva, --function-paren-vertical-alignment>
 
-- 
2.39.5