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branch master updated: * tp/Texinfo/Convert/DocBook.pm (_convert), tp/Te


From: Patrice Dumas
Subject: branch master updated: * tp/Texinfo/Convert/DocBook.pm (_convert), tp/Texinfo/Convert/HTML.pm (_convert_balanced_braces_type), tp/Texinfo/Convert/LaTeX.pm (_convert), tp/Texinfo/Convert/Plaintext.pm (_convert), tp/Texinfo/Convert/Texinfo.pm (convert_to_texinfo), tp/Texinfo/Convert/TexinfoMarkup.pm (_convert), tp/Texinfo/Convert/Text.pm (_convert), tp/Texinfo/Convert/TextContent.pm (_convert), tp/Texinfo/ParserNonXS.pm (_close_current, _handle_open_brace) (_handle_close_brace), tp/Texinfo/XS/parsetexi/close.c (cl [...]
Date: Sat, 11 Mar 2023 04:53:13 -0500

This is an automated email from the git hooks/post-receive script.

pertusus pushed a commit to branch master
in repository texinfo.

The following commit(s) were added to refs/heads/master by this push:
     new ddac21959c * tp/Texinfo/Convert/DocBook.pm (_convert), 
tp/Texinfo/Convert/HTML.pm (_convert_balanced_braces_type), 
tp/Texinfo/Convert/LaTeX.pm (_convert), tp/Texinfo/Convert/Plaintext.pm 
(_convert), tp/Texinfo/Convert/Texinfo.pm (convert_to_texinfo), 
tp/Texinfo/Convert/TexinfoMarkup.pm (_convert), tp/Texinfo/Convert/Text.pm 
(_convert), tp/Texinfo/Convert/TextContent.pm (_convert), 
tp/Texinfo/ParserNonXS.pm (_close_current, _handle_open_brace) 
(_handle_close_brace), tp/Texinfo/XS/ [...]
ddac21959c is described below

commit ddac21959c74aa427fe68fc67e720129f4343852
Author: Patrice Dumas <pertusus@free.fr>
AuthorDate: Sat Mar 11 10:53:01 2023 +0100

    * tp/Texinfo/Convert/DocBook.pm (_convert), tp/Texinfo/Convert/HTML.pm
    (_convert_balanced_braces_type), tp/Texinfo/Convert/LaTeX.pm
    (_convert), tp/Texinfo/Convert/Plaintext.pm (_convert),
    tp/Texinfo/Convert/Texinfo.pm (convert_to_texinfo),
    tp/Texinfo/Convert/TexinfoMarkup.pm (_convert),
    tp/Texinfo/Convert/Text.pm (_convert),
    tp/Texinfo/Convert/TextContent.pm (_convert),
    tp/Texinfo/ParserNonXS.pm (_close_current, _handle_open_brace)
    (_handle_close_brace), tp/Texinfo/XS/parsetexi/close.c
    (close_current), tp/Texinfo/XS/parsetexi/convert.c
    (convert_to_texinfo_internal), tp/Texinfo/XS/parsetexi/separator.c
    (handle_open_brace, handle_close_brace): put braces associated to the
    balanced_braces type in the contents of the container, as text.
    
    * tp/Texinfo/ParserNonXS.pm (_handle_close_brace),
    tp/Texinfo/XS/parsetexi/separator.c (handle_close_brace): abort empty
    line and close paragraph in brace_command_context commands only if the
    current container is actually a paragraph.
    
    * tp/t/03coverage_braces.t, tp/Makefile.tres: add
    empty_line_in_braces_in_math and
    empty_line_in_braces_in_math_at_begin_line tests.
---
 ChangeLog                                          | 25 ++++++++
 tp/Makefile.tres                                   |  2 +
 tp/Texinfo/Convert/DocBook.pm                      |  3 -
 tp/Texinfo/Convert/HTML.pm                         |  2 +-
 tp/Texinfo/Convert/LaTeX.pm                        |  4 --
 tp/Texinfo/Convert/NodeNameNormalization.pm        |  2 -
 tp/Texinfo/Convert/Plaintext.pm                    |  6 --
 tp/Texinfo/Convert/Texinfo.pm                      |  6 +-
 tp/Texinfo/Convert/TexinfoMarkup.pm                |  2 -
 tp/Texinfo/Convert/Text.pm                         | 10 ++-
 tp/Texinfo/Convert/TextContent.pm                  |  2 -
 tp/Texinfo/ParserNonXS.pm                          | 71 +++++++++++++++-------
 tp/Texinfo/XS/parsetexi/close.c                    | 13 +++-
 tp/Texinfo/XS/parsetexi/convert.c                  |  6 +-
 tp/Texinfo/XS/parsetexi/parser.c                   |  4 +-
 tp/Texinfo/XS/parsetexi/separator.c                | 22 +++++--
 tp/t/03coverage_braces.t                           | 11 ++++
 tp/t/results/converters_tests/inline.pl            | 18 ++++--
 tp/t/results/converters_tests/inline_expand_tex.pl |  7 ++-
 .../results/converters_tests/raw_block_commands.pl |  4 +-
 .../raw_block_commands_expand_tex.pl               |  4 +-
 tp/t/results/coverage/displaymath.pl               | 21 +++++--
 tp/t/results/coverage/math.pl                      | 21 +++++--
 .../math_bracketed_inside_not_closed.pl            |  4 +-
 .../coverage_braces/math_bracketed_not_closed.pl   |  7 ++-
 .../math_bracketed_not_closed_next_line.pl         |  5 +-
 tp/t/results/html_tests/mathjax_with_texinfo.pl    |  7 ++-
 .../mathjax_with_texinfo_enable_encoding.pl        |  7 ++-
 .../html_tests/mathjax_with_texinfo_html_text.pl   |  7 ++-
 .../mathjax_with_texinfo_no_convert_to_latex.pl    |  7 ++-
 tp/t/results/invalid_nestings/section_in_math.pl   |  5 +-
 .../titlepage_with_commands_classical.pl           |  4 +-
 .../plaintext_tests/lone_braces_in_inlineraw.pl    |  2 +-
 tp/t/results/raw/displaymath.pl                    |  8 +--
 .../raw/second_level_lone_braces_in_html.pl        |  7 ++-
 tp/t/results/xml_tests/commands_and_spaces.pl      |  2 +-
 36 files changed, 225 insertions(+), 113 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 23f43b6391..a714d8120e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,28 @@
+2023-03-11  Patrice Dumas  <pertusus@free.fr>
+
+       * tp/Texinfo/Convert/DocBook.pm (_convert), tp/Texinfo/Convert/HTML.pm
+       (_convert_balanced_braces_type), tp/Texinfo/Convert/LaTeX.pm
+       (_convert), tp/Texinfo/Convert/Plaintext.pm (_convert),
+       tp/Texinfo/Convert/Texinfo.pm (convert_to_texinfo),
+       tp/Texinfo/Convert/TexinfoMarkup.pm (_convert),
+       tp/Texinfo/Convert/Text.pm (_convert),
+       tp/Texinfo/Convert/TextContent.pm (_convert),
+       tp/Texinfo/ParserNonXS.pm (_close_current, _handle_open_brace)
+       (_handle_close_brace), tp/Texinfo/XS/parsetexi/close.c
+       (close_current), tp/Texinfo/XS/parsetexi/convert.c
+       (convert_to_texinfo_internal), tp/Texinfo/XS/parsetexi/separator.c
+       (handle_open_brace, handle_close_brace): put braces associated to the
+       balanced_braces type in the contents of the container, as text.
+
+       * tp/Texinfo/ParserNonXS.pm (_handle_close_brace),
+       tp/Texinfo/XS/parsetexi/separator.c (handle_close_brace): abort empty
+       line and close paragraph in brace_command_context commands only if the
+       current container is actually a paragraph.
+
+       * tp/t/03coverage_braces.t, tp/Makefile.tres: add
+       empty_line_in_braces_in_math and
+       empty_line_in_braces_in_math_at_begin_line tests.
+
 2023-03-10  Patrice Dumas  <pertusus@free.fr>
 
        * tp/Texinfo/Convert/DocBook.pm (_convert), tp/Texinfo/Convert/HTML.pm
diff --git a/tp/Makefile.tres b/tp/Makefile.tres
index 251a505add..151ac048af 100644
--- a/tp/Makefile.tres
+++ b/tp/Makefile.tres
@@ -363,6 +363,8 @@ test_files_generated_list = 
$(test_tap_files_generated_list) \
   t/results/coverage_braces/empty_commands.pl \
   t/results/coverage_braces/empty_images.pl \
   t/results/coverage_braces/empty_line_in_anchor.pl \
+  t/results/coverage_braces/empty_line_in_braces_in_math.pl \
+  t/results/coverage_braces/empty_line_in_braces_in_math_at_begin_line.pl \
   t/results/coverage_braces/empty_line_in_email.pl \
   t/results/coverage_braces/empty_line_in_math.pl \
   t/results/coverage_braces/empty_ref.pl \
diff --git a/tp/Texinfo/Convert/DocBook.pm b/tp/Texinfo/Convert/DocBook.pm
index 27774f00fb..3e274a6832 100644
--- a/tp/Texinfo/Convert/DocBook.pm
+++ b/tp/Texinfo/Convert/DocBook.pm
@@ -1714,9 +1714,6 @@ sub _convert($$;$)
     }
   }
 
-  $result = '{'.$result.'}' 
-     if ($element->{'type'} and $element->{'type'} eq 'balanced_braces');
-
   foreach my $format_element (@close_format_elements) {
     $result .= "</$format_element>";
   }
diff --git a/tp/Texinfo/Convert/HTML.pm b/tp/Texinfo/Convert/HTML.pm
index 7e0650d8fc..d1f2746791 100644
--- a/tp/Texinfo/Convert/HTML.pm
+++ b/tp/Texinfo/Convert/HTML.pm
@@ -6233,7 +6233,7 @@ sub _convert_balanced_braces_type($$$$) {
   my $element = shift;
   my $content = shift;
 
-  return '{'.$content.'}';
+  return $content;
 }
 
 $default_types_conversion{'balanced_braces'} = \&_convert_balanced_braces_type;
diff --git a/tp/Texinfo/Convert/LaTeX.pm b/tp/Texinfo/Convert/LaTeX.pm
index 0946e41414..5dd3ba4435 100644
--- a/tp/Texinfo/Convert/LaTeX.pm
+++ b/tp/Texinfo/Convert/LaTeX.pm
@@ -4204,8 +4204,6 @@ sub _convert($$)
       $result .= _open_preformatted($self, $element);
     } elsif ($element->{'type'} eq '_dot_not_end_sentence') {
       $self->{'formatting_context'}->[-1]->{'dot_not_end_sentence'} += 1;
-    } elsif ($element->{'type'} eq 'balanced_braces') {
-      $result .= _protect_text($self, '{');
     }
   }
 
@@ -4240,8 +4238,6 @@ sub _convert($$)
     } elsif ($type eq 'table_term') {
       $result .= '}}]'."\n";
       pop @{$self->{'formatting_context'}->[-1]->{'nr_table_items_context'}};
-    } elsif ($type eq 'balanced_braces') {
-      $result .= _protect_text($self, '}');
     } elsif ($type eq 'preformatted') {
       $result .= _close_preformatted($self, $element);
     } elsif ($type eq 'before_item') {
diff --git a/tp/Texinfo/Convert/NodeNameNormalization.pm 
b/tp/Texinfo/Convert/NodeNameNormalization.pm
index 874567bcdc..31d6dd1ffc 100644
--- a/tp/Texinfo/Convert/NodeNameNormalization.pm
+++ b/tp/Texinfo/Convert/NodeNameNormalization.pm
@@ -320,8 +320,6 @@ sub _convert($)
       $result .= _convert($content);
     }
   }
-  $result = '{'.$result.'}'
-     if ($element->{'type'} and $element->{'type'} eq 'balanced_braces');
   return $result;
 }
 
diff --git a/tp/Texinfo/Convert/Plaintext.pm b/tp/Texinfo/Convert/Plaintext.pm
index 00ec556055..3198e3d2a4 100644
--- a/tp/Texinfo/Convert/Plaintext.pm
+++ b/tp/Texinfo/Convert/Plaintext.pm
@@ -3406,9 +3406,6 @@ sub _convert($$)
       _open_code($formatter);
     } elsif ($element->{'type'} eq '_stop_upper_case') {
       push @{$formatter->{'upper_case_stack'}}, {};
-    } elsif ($element->{'type'} eq 'balanced_braces') {
-      $result .= _count_added($self, $formatter->{'container'},
-                   add_text($formatter->{'container'}, '{'));
     }
   }
 
@@ -3441,9 +3438,6 @@ sub _convert($$)
       _close_code($formatter);
     } elsif ($element->{'type'} eq '_stop_upper_case') {
       pop @{$formatter->{'upper_case_stack'}};
-    } elsif ($element->{'type'} eq 'balanced_braces') {
-      $result .= _count_added($self, $formatter->{'container'},
-                                     add_text($formatter->{'container'}, '}'));
     } elsif ($element->{'type'} eq 'row') {
       my @cell_beginnings;
       my @cell_lines;
diff --git a/tp/Texinfo/Convert/Texinfo.pm b/tp/Texinfo/Convert/Texinfo.pm
index ba8ca47118..9ab8c463fe 100644
--- a/tp/Texinfo/Convert/Texinfo.pm
+++ b/tp/Texinfo/Convert/Texinfo.pm
@@ -130,8 +130,7 @@ sub convert_to_texinfo($)
       $result .= _expand_cmd_args_to_texi($element);
     }
     if ($element->{'type'}
-        and ($element->{'type'} eq 'balanced_braces'
-             or $element->{'type'} eq 'bracketed_arg')) {
+        and $element->{'type'} eq 'bracketed_arg') {
       $result .= '{';
       if ($element->{'info'}
           and $element->{'info'}->{'spaces_before_argument'}) {
@@ -150,8 +149,7 @@ sub convert_to_texinfo($)
       $result .= convert_to_texinfo($element->{'info'}->{'comment_at_end'})
     }
     $result .= '}' if ($element->{'type'}
-                       and ($element->{'type'} eq 'balanced_braces'
-                            or $element->{'type'} eq 'bracketed_arg'));
+                       and $element->{'type'} eq 'bracketed_arg');
   }
   return $result;
 }
diff --git a/tp/Texinfo/Convert/TexinfoMarkup.pm 
b/tp/Texinfo/Convert/TexinfoMarkup.pm
index bece8ffc72..ae34856918 100644
--- a/tp/Texinfo/Convert/TexinfoMarkup.pm
+++ b/tp/Texinfo/Convert/TexinfoMarkup.pm
@@ -1572,8 +1572,6 @@ sub _convert($$;$)
         .= $self->txi_markup_close_element($type_elements{$element->{'type'}});
     }
   }
-  $result = '{'.$result.'}'
-     if ($element->{'type'} and $element->{'type'} eq 'balanced_braces');
 
   foreach my $format_element (@close_format_elements) {
     $result .= $self->txi_markup_close_element($format_element);
diff --git a/tp/Texinfo/Convert/Text.pm b/tp/Texinfo/Convert/Text.pm
index 0abb81bce7..071fd54b29 100644
--- a/tp/Texinfo/Convert/Text.pm
+++ b/tp/Texinfo/Convert/Text.pm
@@ -665,12 +665,10 @@ sub _convert($;$)
     $options->{'_raw_state'}-- if ($in_raw);
     $options->{'_code_state'}-- if ($in_code);
   }
-  if ($element->{'type'} and $element->{'type'} eq 'balanced_braces') {
-    $result = '{'.$result.'}';
-  } elsif ($element->{'type'} and $element->{'type'} eq 'menu_entry'
-           and (!$element->{'parent'}->{'type'}
-                or ($element->{'parent'}->{'type'} ne 'preformatted'
-                    and $element->{'parent'}->{'type'} ne 'rawpreformatted'))) 
{
+  if ($element->{'type'} and $element->{'type'} eq 'menu_entry'
+      and (!$element->{'parent'}->{'type'}
+           or ($element->{'parent'}->{'type'} ne 'preformatted'
+               and $element->{'parent'}->{'type'} ne 'rawpreformatted'))) {
     chomp($result);
     $result .= "\n";
   }
diff --git a/tp/Texinfo/Convert/TextContent.pm 
b/tp/Texinfo/Convert/TextContent.pm
index 202354f7a9..5d525bd850 100644
--- a/tp/Texinfo/Convert/TextContent.pm
+++ b/tp/Texinfo/Convert/TextContent.pm
@@ -171,8 +171,6 @@ sub _convert($$)
       $result .= _convert($self, $content);
     }
   }
-  $result = '{'.$result.'}'
-     if ($element->{'type'} and $element->{'type'} eq 'balanced_braces');
 
   if ($element->{'type'} and $element->{'type'} eq 'line_arg') {
     $result .= "\n";
diff --git a/tp/Texinfo/ParserNonXS.pm b/tp/Texinfo/ParserNonXS.pm
index 382ad6152d..35bd8420f1 100644
--- a/tp/Texinfo/ParserNonXS.pm
+++ b/tp/Texinfo/ParserNonXS.pm
@@ -2048,10 +2048,17 @@ sub _close_current($$$;$$)
         or $current->{'type'} eq 'bracketed_arg') {
       # unclosed bracketed
       $self->_command_error($current, $source_info, __("misplaced {"));
-      if ($current->{'contents'}
-          and $current->{'contents'}->[0]->{'type'}
-          and $current->{'contents'}->[0]->{'type'}
-                eq 'internal_spaces_before_argument') {
+      if ($current->{'type'} eq 'balanced_braces') {
+        # We prefer adding an element to merging because we may
+        # be at the end of the document after an empty line we
+        # do not want to modify
+        #$current = _merge_text($self, $current, '}');
+        my $close_brace = {'text' => '}', 'parent' => $current};
+        push @{$current->{'contents'}}, $close_brace;
+      } elsif ($current->{'contents'}
+               and $current->{'contents'}->[0]->{'type'}
+               and $current->{'contents'}->[0]->{'type'}
+                              eq 'internal_spaces_before_argument') {
         # remove spaces element from tree and update extra values
         _abort_empty_line($self, $current);
       }
@@ -2196,17 +2203,17 @@ sub _merge_text {
       delete $transfer_marks_element->{'source_marks'};
     }
     # Append text
-    $merged_to->{'text'} .= $text;
     print STDERR "MERGED TEXT: $text|||in "
       .Texinfo::Common::debug_print_element($merged_to)
       ." last of: ".Texinfo::Common::debug_print_element($current)."\n"
          if ($self->{'DEBUG'});
+    $merged_to->{'text'} .= $text;
   } else {
     my $new_element = { 'text' => $text, 'parent' => $current };
     _transfer_source_marks($transfer_marks_element, $new_element)
       if ($transfer_marks_element);
     push @{$current->{'contents'}}, $new_element;
-    print STDERR "NEW TEXT: $text|||\n" if ($self->{'DEBUG'});
+    print STDERR "NEW TEXT (merge): $text|||\n" if ($self->{'DEBUG'});
   }
   return $current;
 }
@@ -2704,7 +2711,9 @@ sub _abort_empty_line {
 
     my $spaces_element = $current->{'contents'}->[-1];
 
-    print STDERR "ABORT EMPTY "
+    print STDERR "ABORT EMPTY in "
+      .Texinfo::Common::debug_print_element($current)."(p:".
+       (!$no_paragraph_contexts{$self->_top_context()} ? 1 : 0)."): "
       .$spaces_element->{'type'}
       ." additional text |$additional_spaces|,"
       ." current |$spaces_element->{'text'}|\n"
@@ -4175,7 +4184,9 @@ sub _end_line($$$)
   if ($current->{'contents'} and @{$current->{'contents'}}
       and $current->{'contents'}->[-1]->{'type'}
       and $current->{'contents'}->[-1]->{'type'} eq 'empty_line') {
-    print STDERR "END EMPTY LINE\n" if ($self->{'DEBUG'});
+    print STDERR "END EMPTY LINE in "
+        . Texinfo::Common::debug_print_element($current)."\n"
+          if ($self->{'DEBUG'});
     if ($current->{'type'} and $current->{'type'} eq 'paragraph') {
       # Remove empty_line element.
       my $empty_line = _pop_element_from_contents($self, $current);
@@ -5686,22 +5697,27 @@ sub _handle_open_brace($$$$)
   } elsif ($current->{'type'}
            and $current->{'type'} eq 'rawpreformatted') {
     # this can happen in an expanded rawpreformatted
+    # FIXME use _merge_text?
     _abort_empty_line($self, $current);
     push @{$current->{'contents'}}, {'text' => '{',
                                      'parent' => $current };
     print STDERR "LONE OPEN BRACE in rawpreformatted\n"
        if ($self->{'DEBUG'});
-  # matching braces accepted in a rawpreformatted or math or ignored
-  # code.  Note that for rawpreformatted, it can only happen
-  # within an @-command as { do not start a bracketed as seen just above.
+  # matching braces accepted in a rawpreformatted, inline raw or
+  # math.  Note that for rawpreformatted, it can only happen
+  # within an @-command as { is simply added as seen just above.
   } elsif ($self->_top_context() eq 'ct_math'
            or $self->_top_context() eq 'ct_rawpreformatted'
            or $self->_top_context() eq 'ct_inlineraw') {
     _abort_empty_line($self, $current);
-    push @{$current->{'contents'}},
-         { 'type' => 'balanced_braces',
-           'parent' => $current, 'source_info' => $source_info };
-    $current = $current->{'contents'}->[-1];
+    my $balanced_braces = {'type' => 'balanced_braces',
+                           'contents' => [],
+                           'parent' => $current,
+                           'source_info' => $source_info};
+    push @{$current->{'contents'}}, $balanced_braces;
+    $current = $balanced_braces;
+    my $open_brace = {'text' => '{', 'parent' => $current};
+    push @{$current->{'contents'}}, $open_brace;
     print STDERR "BALANCED BRACES in math/rawpreformatted/inlineraw\n"
        if ($self->{'DEBUG'});
   } else {
@@ -5717,18 +5733,27 @@ sub _handle_close_brace($$$)
   my $current = shift;
   my $source_info = shift;
 
+  print STDERR "CLOSE BRACE\n" if ($self->{'DEBUG'});
   # For footnote and caption closing, when there is a paragraph inside.
   # This makes the brace command the parent element.
   if ($current->{'parent'} and $current->{'parent'}->{'type'}
-        and $current->{'parent'}->{'type'} eq 'brace_command_context') {
-     _abort_empty_line($self, $current);
-     $current = _end_paragraph($self, $current, $source_info);
+      and $current->{'parent'}->{'type'} eq 'brace_command_context'
+      and $current->{'type'} eq 'paragraph') {
+    _abort_empty_line($self, $current);
+    print STDERR "IN BRACE_COMMAND_CONTEXT "
+       .Texinfo::Common::debug_print_element($current, 1)."\n"
+          if ($self->{'DEBUG'});
+    $current = _end_paragraph($self, $current, $source_info);
   }
 
   if ($current->{'type'}
       and ($current->{'type'} eq 'balanced_braces'
            or $current->{'type'} eq 'bracketed_arg')) {
-    _abort_empty_line($self, $current);
+    if ($current->{'type'} eq 'balanced_braces') {
+      $current = _merge_text($self, $current, '}');
+    } else {
+      _abort_empty_line($self, $current);
+    }
     $current = $current->{'parent'};
   } elsif ($current->{'parent'}
       and $current->{'parent'}->{'cmdname'}
@@ -8219,10 +8244,10 @@ The types of container element are the following:
 
 =item balanced_braces
 
-Special type containing content in balanced braces in the context
-where they are valid, and where balanced braces need to be collected
-to know when a top-level brace command is closed.  In C<@math>, in raw
-output format brace commands and within brace @-commands in raw output
+Special type containing balanced braces content (braces included)
+in the context where they are valid, and where balanced braces need to
+be collected to know when a top-level brace command is closed.  In C<@math>,
+in raw output format brace commands and within brace @-commands in raw output
 format block commands.
 
 =item before_item
diff --git a/tp/Texinfo/XS/parsetexi/close.c b/tp/Texinfo/XS/parsetexi/close.c
index 0db29cf7e4..dd7da4aa8d 100644
--- a/tp/Texinfo/XS/parsetexi/close.c
+++ b/tp/Texinfo/XS/parsetexi/close.c
@@ -427,7 +427,18 @@ close_current (ELEMENT *current,
         case ET_balanced_braces:
         case ET_bracketed_arg:
           command_error (current, "misplaced {");
-          if (current->contents.number > 0
+          if (current->type == ET_balanced_braces)
+            {
+              /* We prefer adding an element to merging because we may
+                 be at the end of the document after an empty line we
+                do not want to modify */
+              /* current = merge_text (current, "}", 0); */
+              ELEMENT *close_brace = new_element (ET_NONE);
+              text_append (&close_brace->text, "}");
+              add_to_element_contents (current, close_brace);
+
+            }
+          else if (current->contents.number > 0
               && current->contents.list[0]->type
                  == ET_internal_spaces_before_argument)
             {
diff --git a/tp/Texinfo/XS/parsetexi/convert.c 
b/tp/Texinfo/XS/parsetexi/convert.c
index 1daf2bda1c..b720c27fb8 100644
--- a/tp/Texinfo/XS/parsetexi/convert.c
+++ b/tp/Texinfo/XS/parsetexi/convert.c
@@ -175,8 +175,7 @@ convert_to_texinfo_internal (ELEMENT *e, TEXT *result)
           expand_cmd_args_to_texi (e, result);
         }
 
-      if (e->type == ET_balanced_braces
-          || e->type == ET_bracketed_arg)
+      if (e->type == ET_bracketed_arg)
         {
           KEY_PAIR *k;
           ADD("{");
@@ -199,8 +198,7 @@ convert_to_texinfo_internal (ELEMENT *e, TEXT *result)
       if (k)
         convert_to_texinfo_internal ((ELEMENT *)k->value, result);
 
-      if (e->type == ET_balanced_braces
-          || e->type == ET_bracketed_arg)
+      if (e->type == ET_bracketed_arg)
         ADD("}");
     }
 
diff --git a/tp/Texinfo/XS/parsetexi/parser.c b/tp/Texinfo/XS/parsetexi/parser.c
index 55c166f02c..7429b37303 100644
--- a/tp/Texinfo/XS/parsetexi/parser.c
+++ b/tp/Texinfo/XS/parsetexi/parser.c
@@ -701,8 +701,8 @@ merge_text (ELEMENT *current, char *text, ELEMENT 
*transfer_marks_element)
           transfer_marks_element->source_mark_list.number = 0;
         }
       /* Append text */
-      text_append (&last_child->text, text);
       debug ("MERGED TEXT: %s|||", text);
+      text_append (&last_child->text, text);
     }
   else
     {
@@ -711,7 +711,7 @@ merge_text (ELEMENT *current, char *text, ELEMENT 
*transfer_marks_element)
         transfer_source_marks (transfer_marks_element, e);
       text_append (&e->text, text);
       add_to_element_contents (current, e);
-      debug ("NEW TEXT: %s|||", text);
+      debug ("NEW TEXT (merge): %s|||", text);
     }
 
   return current;
diff --git a/tp/Texinfo/XS/parsetexi/separator.c 
b/tp/Texinfo/XS/parsetexi/separator.c
index 11df10ef7b..83022eea23 100644
--- a/tp/Texinfo/XS/parsetexi/separator.c
+++ b/tp/Texinfo/XS/parsetexi/separator.c
@@ -192,16 +192,23 @@ handle_open_brace (ELEMENT *current, char **line_inout)
       text_append (&e->text, "{");
       add_to_element_contents (current, e);
     }
+  /* matching braces accepted in a rawpreformatted, inline raw or
+     math.  Note that for rawpreformatted, it can only happen
+     within an @-command as { is simply added as seen just above.
+   */
   else if (current_context() == ct_math
            || current_context() == ct_rawpreformatted
            || current_context() == ct_inlineraw)
     {
       ELEMENT *b = new_element (ET_balanced_braces);
+      ELEMENT *open_brace = new_element (ET_NONE);
       abort_empty_line (&current, NULL);
       b->source_info = current_source_info;
       add_to_element_contents (current, b);
       current = b;
-      debug ("BRACKETED in math");
+      text_append (&open_brace->text, "{");
+      add_to_element_contents (current, open_brace);
+      debug ("BALANCED BRACES in math/rawpreformatted/inlineraw");
     }
   else
     {
@@ -236,9 +243,12 @@ handle_close_brace (ELEMENT *current, char **line_inout)
 {
   char *line = *line_inout;
 
+  debug ("CLOSE BRACE");
+
   /* For footnote and caption closing, when there is a paragraph inside.
      This makes the brace command the parent element. */
-  if (current->parent && current->parent->type == ET_brace_command_context)
+  if (current->parent && current->parent->type == ET_brace_command_context
+      && current->type == ET_paragraph)
     {
       abort_empty_line (&current, NULL);
       current = end_paragraph (current, 0, 0);
@@ -247,8 +257,10 @@ handle_close_brace (ELEMENT *current, char **line_inout)
   if (current->type == ET_balanced_braces
       || current->type == ET_bracketed_arg)
     {
-      /* Used in @math */
-      abort_empty_line (&current, NULL);
+      if (current->type == ET_balanced_braces)
+        current = merge_text (current, "}", 0);
+      else
+        abort_empty_line (&current, NULL);
       current = current->parent;
       goto funexit;
     }
@@ -537,7 +549,7 @@ handle_close_brace (ELEMENT *current, char **line_inout)
       line_error ("misplaced }");
       goto funexit;
     }
-  
+
 funexit:
   *line_inout = line;
   return current;
diff --git a/tp/t/03coverage_braces.t b/tp/t/03coverage_braces.t
index 003b273de9..b422291b56 100644
--- a/tp/t/03coverage_braces.t
+++ b/tp/t/03coverage_braces.t
@@ -336,6 +336,17 @@ b}'],
 
 '],
 ['math_leading_trailing_spaces','@math{ a = b }'],
+['empty_line_in_braces_in_math',
+'@math{a{bb
+
+c}d}'],
+['empty_line_in_braces_in_math_at_begin_line',
+'@math{a
+
+{b
+
+} c
+}'],
 ['unknown_command_with_braces',
 'Unknown thing @thing{}
 
diff --git a/tp/t/results/converters_tests/inline.pl 
b/tp/t/results/converters_tests/inline.pl
index 146018e82d..9371d87585 100644
--- a/tp/t/results/converters_tests/inline.pl
+++ b/tp/t/results/converters_tests/inline.pl
@@ -228,7 +228,7 @@ $result_trees{'inline'} = {
                             {
                               'contents' => [
                                 {
-                                  'text' => 'a < b '
+                                  'text' => '{a < b '
                                 },
                                 {
                                   'args' => [
@@ -240,7 +240,7 @@ $result_trees{'inline'} = {
                                         {
                                           'contents' => [
                                             {
-                                              'text' => ' code '
+                                              'text' => '{ code }'
                                             }
                                           ],
                                           'source_info' => {
@@ -260,6 +260,9 @@ $result_trees{'inline'} = {
                                     'line_nr' => 7,
                                     'macro' => ''
                                   }
+                                },
+                                {
+                                  'text' => '}'
                                 }
                               ],
                               'source_info' => {
@@ -272,7 +275,7 @@ $result_trees{'inline'} = {
                             {
                               'contents' => [
                                 {
-                                  'text' => 'b'
+                                  'text' => '{b}'
                                 }
                               ],
                               'source_info' => {
@@ -543,7 +546,7 @@ $result_trees{'inline'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'a < b '
+                          'text' => '{a < b '
                         },
                         {
                           'args' => [
@@ -555,7 +558,7 @@ $result_trees{'inline'} = {
                                 {
                                   'contents' => [
                                     {
-                                      'text' => ' code '
+                                      'text' => '{ code }'
                                     }
                                   ],
                                   'source_info' => {
@@ -575,6 +578,9 @@ $result_trees{'inline'} = {
                             'line_nr' => 15,
                             'macro' => ''
                           }
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
@@ -587,7 +593,7 @@ $result_trees{'inline'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'b'
+                          'text' => '{b}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/converters_tests/inline_expand_tex.pl 
b/tp/t/results/converters_tests/inline_expand_tex.pl
index 7bc001cd18..fbd92f920d 100644
--- a/tp/t/results/converters_tests/inline_expand_tex.pl
+++ b/tp/t/results/converters_tests/inline_expand_tex.pl
@@ -412,7 +412,7 @@ $result_trees{'inline_expand_tex'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'a < b '
+                          'text' => '{a < b '
                         },
                         {
                           'args' => [
@@ -424,7 +424,7 @@ $result_trees{'inline_expand_tex'} = {
                                 {
                                   'contents' => [
                                     {
-                                      'text' => ' code '
+                                      'text' => '{ code }'
                                     }
                                   ],
                                   'source_info' => {
@@ -444,6 +444,9 @@ $result_trees{'inline_expand_tex'} = {
                             'line_nr' => 14,
                             'macro' => ''
                           }
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/converters_tests/raw_block_commands.pl 
b/tp/t/results/converters_tests/raw_block_commands.pl
index 90b3801dad..98f7d9073a 100644
--- a/tp/t/results/converters_tests/raw_block_commands.pl
+++ b/tp/t/results/converters_tests/raw_block_commands.pl
@@ -256,7 +256,7 @@ $result_trees{'raw_block_commands'} = {
                         {
                           'contents' => [
                             {
-                              'text' => ' code '
+                              'text' => '{ code }'
                             }
                           ],
                           'source_info' => {
@@ -360,7 +360,7 @@ $result_trees{'raw_block_commands'} = {
                         {
                           'contents' => [
                             {
-                              'text' => ' code '
+                              'text' => '{ code }'
                             }
                           ],
                           'source_info' => {
diff --git a/tp/t/results/converters_tests/raw_block_commands_expand_tex.pl 
b/tp/t/results/converters_tests/raw_block_commands_expand_tex.pl
index 5280e81242..3591a55c87 100644
--- a/tp/t/results/converters_tests/raw_block_commands_expand_tex.pl
+++ b/tp/t/results/converters_tests/raw_block_commands_expand_tex.pl
@@ -256,7 +256,7 @@ $result_trees{'raw_block_commands_expand_tex'} = {
                         {
                           'contents' => [
                             {
-                              'text' => ' code '
+                              'text' => '{ code }'
                             }
                           ],
                           'source_info' => {
@@ -360,7 +360,7 @@ $result_trees{'raw_block_commands_expand_tex'} = {
                         {
                           'contents' => [
                             {
-                              'text' => ' code '
+                              'text' => '{ code }'
                             }
                           ],
                           'source_info' => {
diff --git a/tp/t/results/coverage/displaymath.pl 
b/tp/t/results/coverage/displaymath.pl
index 8e2b2e6029..c23409abbb 100644
--- a/tp/t/results/coverage/displaymath.pl
+++ b/tp/t/results/coverage/displaymath.pl
@@ -38,7 +38,7 @@ $result_trees{'displaymath'} = {
             {
               'contents' => [
                 {
-                  'text' => 'x^i'
+                  'text' => '{x^i}'
                 }
               ],
               'source_info' => {
@@ -54,7 +54,7 @@ $result_trees{'displaymath'} = {
             {
               'contents' => [
                 {
-                  'text' => '\\tan y'
+                  'text' => '{\\tan y}'
                 }
               ],
               'source_info' => {
@@ -277,6 +277,9 @@ $result_trees{'displaymath'} = {
             },
             {
               'contents' => [
+                {
+                  'text' => '{'
+                },
                 {
                   'args' => [
                     {
@@ -287,7 +290,7 @@ $result_trees{'displaymath'} = {
                         {
                           'contents' => [
                             {
-                              'text' => ' code '
+                              'text' => '{ code }'
                             }
                           ],
                           'source_info' => {
@@ -307,6 +310,9 @@ $result_trees{'displaymath'} = {
                     'line_nr' => 13,
                     'macro' => ''
                   }
+                },
+                {
+                  'text' => '}'
                 }
               ],
               'source_info' => {
@@ -328,7 +334,7 @@ $result_trees{'displaymath'} = {
             {
               'contents' => [
                 {
-                  'text' => 'i'
+                  'text' => '{i}'
                 }
               ],
               'source_info' => {
@@ -341,12 +347,12 @@ $result_trees{'displaymath'} = {
             {
               'contents' => [
                 {
-                  'text' => '\\underline'
+                  'text' => '{\\underline'
                 },
                 {
                   'contents' => [
                     {
-                      'text' => 'f'
+                      'text' => '{f}'
                     }
                   ],
                   'source_info' => {
@@ -355,6 +361,9 @@ $result_trees{'displaymath'} = {
                     'macro' => ''
                   },
                   'type' => 'balanced_braces'
+                },
+                {
+                  'text' => '}'
                 }
               ],
               'source_info' => {
diff --git a/tp/t/results/coverage/math.pl b/tp/t/results/coverage/math.pl
index e6d96867ee..61a7337c27 100644
--- a/tp/t/results/coverage/math.pl
+++ b/tp/t/results/coverage/math.pl
@@ -25,7 +25,7 @@ $result_trees{'math'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'x^i'
+                          'text' => '{x^i}'
                         }
                       ],
                       'source_info' => {
@@ -41,7 +41,7 @@ $result_trees{'math'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '\\tan y'
+                          'text' => '{\\tan y}'
                         }
                       ],
                       'source_info' => {
@@ -188,6 +188,9 @@ $result_trees{'math'} = {
                     },
                     {
                       'contents' => [
+                        {
+                          'text' => '{'
+                        },
                         {
                           'args' => [
                             {
@@ -198,7 +201,7 @@ $result_trees{'math'} = {
                                 {
                                   'contents' => [
                                     {
-                                      'text' => ' code '
+                                      'text' => '{ code }'
                                     }
                                   ],
                                   'source_info' => {
@@ -218,6 +221,9 @@ $result_trees{'math'} = {
                             'line_nr' => 8,
                             'macro' => ''
                           }
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
@@ -239,7 +245,7 @@ $result_trees{'math'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'i'
+                          'text' => '{i}'
                         }
                       ],
                       'source_info' => {
@@ -252,12 +258,12 @@ $result_trees{'math'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '\\underline'
+                          'text' => '{\\underline'
                         },
                         {
                           'contents' => [
                             {
-                              'text' => 'f'
+                              'text' => '{f}'
                             }
                           ],
                           'source_info' => {
@@ -266,6 +272,9 @@ $result_trees{'math'} = {
                             'macro' => ''
                           },
                           'type' => 'balanced_braces'
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/coverage_braces/math_bracketed_inside_not_closed.pl 
b/tp/t/results/coverage_braces/math_bracketed_inside_not_closed.pl
index 41ef477738..892cb9434b 100644
--- a/tp/t/results/coverage_braces/math_bracketed_inside_not_closed.pl
+++ b/tp/t/results/coverage_braces/math_bracketed_inside_not_closed.pl
@@ -18,7 +18,7 @@ $result_trees{'math_bracketed_inside_not_closed'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'x^i'
+                          'text' => '{x^i}'
                         }
                       ],
                       'source_info' => {
@@ -34,7 +34,7 @@ $result_trees{'math_bracketed_inside_not_closed'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '\\tan'
+                          'text' => '{\\tan}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/coverage_braces/math_bracketed_not_closed.pl 
b/tp/t/results/coverage_braces/math_bracketed_not_closed.pl
index 62febbe4e3..4ea20db681 100644
--- a/tp/t/results/coverage_braces/math_bracketed_not_closed.pl
+++ b/tp/t/results/coverage_braces/math_bracketed_not_closed.pl
@@ -18,7 +18,7 @@ $result_trees{'math_bracketed_not_closed'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'x^i'
+                          'text' => '{x^i}'
                         }
                       ],
                       'source_info' => {
@@ -34,7 +34,10 @@ $result_trees{'math_bracketed_not_closed'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '\\tan '
+                          'text' => '{\\tan '
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git 
a/tp/t/results/coverage_braces/math_bracketed_not_closed_next_line.pl 
b/tp/t/results/coverage_braces/math_bracketed_not_closed_next_line.pl
index 63c55383ce..18e7a06c5b 100644
--- a/tp/t/results/coverage_braces/math_bracketed_not_closed_next_line.pl
+++ b/tp/t/results/coverage_braces/math_bracketed_not_closed_next_line.pl
@@ -21,13 +21,16 @@ $result_trees{'math_bracketed_not_closed_next_line'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '
+                          'text' => '{
 '
                         },
                         {
                           'text' => '
 ',
                           'type' => 'empty_line'
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/html_tests/mathjax_with_texinfo.pl 
b/tp/t/results/html_tests/mathjax_with_texinfo.pl
index 0a0754f300..7d99770550 100644
--- a/tp/t/results/html_tests/mathjax_with_texinfo.pl
+++ b/tp/t/results/html_tests/mathjax_with_texinfo.pl
@@ -36,7 +36,7 @@ $result_trees{'mathjax_with_texinfo'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '\\xi'
+                          'text' => '{\\xi}'
                         }
                       ],
                       'source_info' => {
@@ -49,7 +49,7 @@ $result_trees{'mathjax_with_texinfo'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'phi '
+                          'text' => '{phi '
                         },
                         {
                           'args' => [
@@ -63,6 +63,9 @@ $result_trees{'mathjax_with_texinfo'} = {
                             'line_nr' => 2,
                             'macro' => ''
                           }
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/html_tests/mathjax_with_texinfo_enable_encoding.pl 
b/tp/t/results/html_tests/mathjax_with_texinfo_enable_encoding.pl
index 33c000b1a7..752f4734f9 100644
--- a/tp/t/results/html_tests/mathjax_with_texinfo_enable_encoding.pl
+++ b/tp/t/results/html_tests/mathjax_with_texinfo_enable_encoding.pl
@@ -40,7 +40,7 @@ $result_trees{'mathjax_with_texinfo_enable_encoding'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '\\xi'
+                          'text' => '{\\xi}'
                         }
                       ],
                       'source_info' => {
@@ -53,7 +53,7 @@ $result_trees{'mathjax_with_texinfo_enable_encoding'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'phi '
+                          'text' => '{phi '
                         },
                         {
                           'args' => [
@@ -67,6 +67,9 @@ $result_trees{'mathjax_with_texinfo_enable_encoding'} = {
                             'line_nr' => 2,
                             'macro' => ''
                           }
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/html_tests/mathjax_with_texinfo_html_text.pl 
b/tp/t/results/html_tests/mathjax_with_texinfo_html_text.pl
index defd52de28..d236e05b07 100644
--- a/tp/t/results/html_tests/mathjax_with_texinfo_html_text.pl
+++ b/tp/t/results/html_tests/mathjax_with_texinfo_html_text.pl
@@ -36,7 +36,7 @@ $result_trees{'mathjax_with_texinfo_html_text'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '\\xi'
+                          'text' => '{\\xi}'
                         }
                       ],
                       'source_info' => {
@@ -49,7 +49,7 @@ $result_trees{'mathjax_with_texinfo_html_text'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'phi '
+                          'text' => '{phi '
                         },
                         {
                           'args' => [
@@ -63,6 +63,9 @@ $result_trees{'mathjax_with_texinfo_html_text'} = {
                             'line_nr' => 2,
                             'macro' => ''
                           }
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git 
a/tp/t/results/html_tests/mathjax_with_texinfo_no_convert_to_latex.pl 
b/tp/t/results/html_tests/mathjax_with_texinfo_no_convert_to_latex.pl
index ef80a952da..d7460a2a22 100644
--- a/tp/t/results/html_tests/mathjax_with_texinfo_no_convert_to_latex.pl
+++ b/tp/t/results/html_tests/mathjax_with_texinfo_no_convert_to_latex.pl
@@ -36,7 +36,7 @@ $result_trees{'mathjax_with_texinfo_no_convert_to_latex'} = {
                     {
                       'contents' => [
                         {
-                          'text' => '\\xi'
+                          'text' => '{\\xi}'
                         }
                       ],
                       'source_info' => {
@@ -49,7 +49,7 @@ $result_trees{'mathjax_with_texinfo_no_convert_to_latex'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'phi '
+                          'text' => '{phi '
                         },
                         {
                           'args' => [
@@ -63,6 +63,9 @@ $result_trees{'mathjax_with_texinfo_no_convert_to_latex'} = {
                             'line_nr' => 2,
                             'macro' => ''
                           }
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/invalid_nestings/section_in_math.pl 
b/tp/t/results/invalid_nestings/section_in_math.pl
index c6886173f6..e9dd2fe70f 100644
--- a/tp/t/results/invalid_nestings/section_in_math.pl
+++ b/tp/t/results/invalid_nestings/section_in_math.pl
@@ -29,13 +29,16 @@ $result_trees{'section_in_math'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'x^2
+                          'text' => '{x^2
 '
                         },
                         {
                           'text' => '
 ',
                           'type' => 'empty_line'
+                        },
+                        {
+                          'text' => '}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/latex_tests/titlepage_with_commands_classical.pl 
b/tp/t/results/latex_tests/titlepage_with_commands_classical.pl
index 57d4247a17..2c0c58f960 100644
--- a/tp/t/results/latex_tests/titlepage_with_commands_classical.pl
+++ b/tp/t/results/latex_tests/titlepage_with_commands_classical.pl
@@ -299,7 +299,7 @@ $result_trees{'titlepage_with_commands_classical'} = {
                                     {
                                       'contents' => [
                                         {
-                                          'text' => 'a'
+                                          'text' => '{a}'
                                         }
                                       ],
                                       'source_info' => {
@@ -312,7 +312,7 @@ $result_trees{'titlepage_with_commands_classical'} = {
                                     {
                                       'contents' => [
                                         {
-                                          'text' => 'b'
+                                          'text' => '{b}'
                                         }
                                       ],
                                       'source_info' => {
diff --git a/tp/t/results/plaintext_tests/lone_braces_in_inlineraw.pl 
b/tp/t/results/plaintext_tests/lone_braces_in_inlineraw.pl
index e5fe75d97c..8306bd2a87 100644
--- a/tp/t/results/plaintext_tests/lone_braces_in_inlineraw.pl
+++ b/tp/t/results/plaintext_tests/lone_braces_in_inlineraw.pl
@@ -26,7 +26,7 @@ $result_trees{'lone_braces_in_inlineraw'} = {
                     {
                       'contents' => [
                         {
-                          'text' => 'truc'
+                          'text' => '{truc}'
                         }
                       ],
                       'source_info' => {
diff --git a/tp/t/results/raw/displaymath.pl b/tp/t/results/raw/displaymath.pl
index f0e2512971..3111817204 100644
--- a/tp/t/results/raw/displaymath.pl
+++ b/tp/t/results/raw/displaymath.pl
@@ -29,7 +29,7 @@ $result_trees{'displaymath'} = {
             {
               'contents' => [
                 {
-                  'text' => '\\nabla\\cdot'
+                  'text' => '{\\nabla\\cdot}'
                 }
               ],
               'source_info' => {
@@ -45,7 +45,7 @@ $result_trees{'displaymath'} = {
             {
               'contents' => [
                 {
-                  'text' => '\\partial D'
+                  'text' => '{\\partial D}'
                 }
               ],
               'source_info' => {
@@ -132,7 +132,7 @@ $result_trees{'displaymath'} = {
             {
               'contents' => [
                 {
-                  'text' => '\\nabla\\cdot'
+                  'text' => '{\\nabla\\cdot}'
                 }
               ],
               'source_info' => {
@@ -148,7 +148,7 @@ $result_trees{'displaymath'} = {
             {
               'contents' => [
                 {
-                  'text' => '\\partial D'
+                  'text' => '{\\partial D}'
                 }
               ],
               'source_info' => {
diff --git a/tp/t/results/raw/second_level_lone_braces_in_html.pl 
b/tp/t/results/raw/second_level_lone_braces_in_html.pl
index b9c01f94cf..cd8c785100 100644
--- a/tp/t/results/raw/second_level_lone_braces_in_html.pl
+++ b/tp/t/results/raw/second_level_lone_braces_in_html.pl
@@ -35,8 +35,11 @@ $result_trees{'second_level_lone_braces_in_html'} = {
                         {
                           'contents' => [
                             {
-                              'text' => '
+                              'text' => '{
 '
+                            },
+                            {
+                              'text' => '}'
                             }
                           ],
                           'source_info' => {
@@ -138,7 +141,7 @@ $result_trees{'second_level_lone_braces_in_html'} = {
                         {
                           'contents' => [
                             {
-                              'text' => 'c d'
+                              'text' => '{c d}'
                             }
                           ],
                           'source_info' => {
diff --git a/tp/t/results/xml_tests/commands_and_spaces.pl 
b/tp/t/results/xml_tests/commands_and_spaces.pl
index 4d13e34235..1bf8cb94be 100644
--- a/tp/t/results/xml_tests/commands_and_spaces.pl
+++ b/tp/t/results/xml_tests/commands_and_spaces.pl
@@ -1347,7 +1347,7 @@ $result_trees{'commands_and_spaces'} = {
                     {
                       'contents' => [
                         {
-                          'text' => ' a, b'
+                          'text' => '{ a, b}'
                         }
                       ],
                       'source_info' => {



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