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branch master updated: @{, @} in index entry


From: Gavin D. Smith
Subject: branch master updated: @{, @} in index entry
Date: Sun, 14 Aug 2022 13:12:58 -0400

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

gavin pushed a commit to branch master
in repository texinfo.

The following commit(s) were added to refs/heads/master by this push:
     new c47503a9e4 @{, @} in index entry
c47503a9e4 is described below

commit c47503a9e4c1a43e70c0308e4ab810c88f3f05d7
Author: Gavin Smith <gavinsmith0123@gmail.com>
AuthorDate: Sun Aug 14 18:12:49 2022 +0100

    @{, @} in index entry
    
    * tp/t/latex_tests.t (brace_in_index): New test.
---
 ChangeLog                                  |   6 +
 tp/t/latex_tests.t                         |  17 +
 tp/t/results/latex_tests/brace_in_index.pl | 591 +++++++++++++++++++++++++++++
 3 files changed, 614 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index b5d0fd6db7..1b5e1b3875 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2022-08-14  Gavin Smith  <gavinsmith0123@gmail.com>
+
+       @{, @} in index entry
+
+       * tp/t/latex_tests.t (brace_in_index): New test.
+
 2022-08-14  Gavin Smith  <gavinsmith0123@gmail.com>
 
        @{, @} in index entry
diff --git a/tp/t/latex_tests.t b/tp/t/latex_tests.t
index 89dc333f1e..524765c7f1 100644
--- a/tp/t/latex_tests.t
+++ b/tp/t/latex_tests.t
@@ -770,6 +770,23 @@ Describe @error{}.
 @cite{cite in example}
 @end example
 '],
+['brace_in_index',
+'@{
+
+@math{@{}
+
+@displaymath
+@{
+@end displaymath
+
+@cindex @{
+
+@cindex @math{@{}
+
+@cindex @samp{@{}
+
+@printindex cp
+'],
 );
 
 foreach my $test (@test_cases) {
diff --git a/tp/t/results/latex_tests/brace_in_index.pl 
b/tp/t/results/latex_tests/brace_in_index.pl
new file mode 100644
index 0000000000..53f64222fe
--- /dev/null
+++ b/tp/t/results/latex_tests/brace_in_index.pl
@@ -0,0 +1,591 @@
+use vars qw(%result_texis %result_texts %result_trees %result_errors 
+   %result_indices %result_sectioning %result_nodes %result_menus
+   %result_floats %result_converted %result_converted_errors 
+   %result_elements %result_directions_text %result_indices_sort_strings);
+
+use utf8;
+
+$result_trees{'brace_in_index'} = {
+  'contents' => [
+    {
+      'contents' => [
+        {
+          'contents' => [],
+          'parent' => {},
+          'type' => 'preamble_before_content'
+        },
+        {
+          'contents' => [
+            {
+              'cmdname' => '{',
+              'parent' => {}
+            },
+            {
+              'parent' => {},
+              'text' => '
+'
+            }
+          ],
+          'parent' => {},
+          'type' => 'paragraph'
+        },
+        {
+          'parent' => {},
+          'text' => '
+',
+          'type' => 'empty_line'
+        },
+        {
+          'contents' => [
+            {
+              'args' => [
+                {
+                  'contents' => [
+                    {
+                      'cmdname' => '{',
+                      'parent' => {}
+                    }
+                  ],
+                  'parent' => {},
+                  'type' => 'brace_command_context'
+                }
+              ],
+              'cmdname' => 'math',
+              'contents' => [],
+              'parent' => {},
+              'source_info' => {
+                'file_name' => '',
+                'line_nr' => 3,
+                'macro' => ''
+              }
+            },
+            {
+              'parent' => {},
+              'text' => '
+'
+            }
+          ],
+          'parent' => {},
+          'type' => 'paragraph'
+        },
+        {
+          'parent' => {},
+          'text' => '
+',
+          'type' => 'empty_line'
+        },
+        {
+          'cmdname' => 'displaymath',
+          'contents' => [
+            {
+              'extra' => {
+                'command' => {}
+              },
+              'parent' => {},
+              'text' => '
+',
+              'type' => 'empty_line_after_command'
+            },
+            {
+              'cmdname' => '{',
+              'parent' => {}
+            },
+            {
+              'parent' => {},
+              'text' => '
+'
+            },
+            {
+              'args' => [
+                {
+                  'contents' => [
+                    {
+                      'parent' => {},
+                      'text' => 'displaymath'
+                    }
+                  ],
+                  'extra' => {
+                    'spaces_after_argument' => '
+'
+                  },
+                  'parent' => {},
+                  'type' => 'line_arg'
+                }
+              ],
+              'cmdname' => 'end',
+              'extra' => {
+                'command_argument' => 'displaymath',
+                'spaces_before_argument' => ' ',
+                'text_arg' => 'displaymath'
+              },
+              'parent' => {},
+              'source_info' => {
+                'file_name' => '',
+                'line_nr' => 7,
+                'macro' => ''
+              }
+            }
+          ],
+          'extra' => {
+            'end_command' => {}
+          },
+          'parent' => {},
+          'source_info' => {
+            'file_name' => '',
+            'line_nr' => 5,
+            'macro' => ''
+          }
+        },
+        {
+          'parent' => {},
+          'text' => '
+',
+          'type' => 'empty_line'
+        },
+        {
+          'args' => [
+            {
+              'contents' => [
+                {
+                  'cmdname' => '{',
+                  'parent' => {}
+                }
+              ],
+              'extra' => {
+                'spaces_after_argument' => '
+'
+              },
+              'parent' => {},
+              'type' => 'line_arg'
+            }
+          ],
+          'cmdname' => 'cindex',
+          'extra' => {
+            'index_entry' => {
+              'command' => {},
+              'content' => [],
+              'content_normalized' => [],
+              'in_code' => 0,
+              'index_at_command' => 'cindex',
+              'index_ignore_chars' => {},
+              'index_name' => 'cp',
+              'index_type_command' => 'cindex',
+              'number' => 1
+            },
+            'spaces_before_argument' => ' '
+          },
+          'parent' => {},
+          'source_info' => {
+            'file_name' => '',
+            'line_nr' => 9,
+            'macro' => ''
+          },
+          'type' => 'index_entry_command'
+        },
+        {
+          'parent' => {},
+          'text' => '
+',
+          'type' => 'empty_line'
+        },
+        {
+          'args' => [
+            {
+              'contents' => [
+                {
+                  'args' => [
+                    {
+                      'contents' => [
+                        {
+                          'cmdname' => '{',
+                          'parent' => {}
+                        }
+                      ],
+                      'parent' => {},
+                      'type' => 'brace_command_context'
+                    }
+                  ],
+                  'cmdname' => 'math',
+                  'contents' => [],
+                  'parent' => {},
+                  'source_info' => {
+                    'file_name' => '',
+                    'line_nr' => 11,
+                    'macro' => ''
+                  }
+                }
+              ],
+              'extra' => {
+                'spaces_after_argument' => '
+'
+              },
+              'parent' => {},
+              'type' => 'line_arg'
+            }
+          ],
+          'cmdname' => 'cindex',
+          'extra' => {
+            'index_entry' => {
+              'command' => {},
+              'content' => [],
+              'content_normalized' => [],
+              'in_code' => 0,
+              'index_at_command' => 'cindex',
+              'index_ignore_chars' => {},
+              'index_name' => 'cp',
+              'index_type_command' => 'cindex',
+              'number' => 2
+            },
+            'spaces_before_argument' => ' '
+          },
+          'parent' => {},
+          'source_info' => {
+            'file_name' => '',
+            'line_nr' => 11,
+            'macro' => ''
+          },
+          'type' => 'index_entry_command'
+        },
+        {
+          'parent' => {},
+          'text' => '
+',
+          'type' => 'empty_line'
+        },
+        {
+          'args' => [
+            {
+              'contents' => [
+                {
+                  'args' => [
+                    {
+                      'contents' => [
+                        {
+                          'cmdname' => '{',
+                          'parent' => {}
+                        }
+                      ],
+                      'parent' => {},
+                      'type' => 'brace_command_arg'
+                    }
+                  ],
+                  'cmdname' => 'samp',
+                  'contents' => [],
+                  'parent' => {},
+                  'source_info' => {
+                    'file_name' => '',
+                    'line_nr' => 13,
+                    'macro' => ''
+                  }
+                }
+              ],
+              'extra' => {
+                'spaces_after_argument' => '
+'
+              },
+              'parent' => {},
+              'type' => 'line_arg'
+            }
+          ],
+          'cmdname' => 'cindex',
+          'extra' => {
+            'index_entry' => {
+              'command' => {},
+              'content' => [],
+              'content_normalized' => [],
+              'in_code' => 0,
+              'index_at_command' => 'cindex',
+              'index_ignore_chars' => {},
+              'index_name' => 'cp',
+              'index_type_command' => 'cindex',
+              'number' => 3
+            },
+            'spaces_before_argument' => ' '
+          },
+          'parent' => {},
+          'source_info' => {
+            'file_name' => '',
+            'line_nr' => 13,
+            'macro' => ''
+          },
+          'type' => 'index_entry_command'
+        },
+        {
+          'parent' => {},
+          'text' => '
+',
+          'type' => 'empty_line'
+        },
+        {
+          'args' => [
+            {
+              'contents' => [
+                {
+                  'parent' => {},
+                  'text' => 'cp'
+                }
+              ],
+              'extra' => {
+                'spaces_after_argument' => '
+'
+              },
+              'parent' => {},
+              'type' => 'line_arg'
+            }
+          ],
+          'cmdname' => 'printindex',
+          'extra' => {
+            'misc_args' => [
+              'cp'
+            ],
+            'spaces_before_argument' => ' '
+          },
+          'parent' => {},
+          'source_info' => {
+            'file_name' => '',
+            'line_nr' => 15,
+            'macro' => ''
+          }
+        }
+      ],
+      'parent' => {},
+      'type' => 'before_node_section'
+    }
+  ],
+  'type' => 'document_root'
+};
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[0]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[1]{'contents'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[1];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[1]{'contents'}[1]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[1];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[1]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[2]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3]{'contents'}[0]{'args'}[0]{'contents'}[0]{'parent'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3]{'contents'}[0]{'args'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3]{'contents'}[0]{'args'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3]{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3]{'contents'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3]{'contents'}[1]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[3]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[4]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[0]{'extra'}{'command'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[1]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[2]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[3]{'args'}[0]{'contents'}[0]{'parent'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[3]{'args'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[3]{'args'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[3];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[3]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'extra'}{'end_command'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'contents'}[3];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[5]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[6]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'args'}[0]{'contents'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'args'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'args'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'extra'}{'index_entry'}{'command'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'extra'}{'index_entry'}{'content'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'args'}[0]{'contents'};
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'extra'}{'index_entry'}{'content_normalized'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'args'}[0]{'contents'};
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[7]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[8]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0]{'contents'}[0]{'args'}[0]{'contents'}[0]{'parent'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0]{'contents'}[0]{'args'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0]{'contents'}[0]{'args'}[0]{'parent'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0]{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0]{'contents'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'extra'}{'index_entry'}{'command'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'extra'}{'index_entry'}{'content'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0]{'contents'};
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'extra'}{'index_entry'}{'content_normalized'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'args'}[0]{'contents'};
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[9]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[10]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0]{'contents'}[0]{'args'}[0]{'contents'}[0]{'parent'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0]{'contents'}[0]{'args'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0]{'contents'}[0]{'args'}[0]{'parent'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0]{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0]{'contents'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'extra'}{'index_entry'}{'command'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'extra'}{'index_entry'}{'content'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0]{'contents'};
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'extra'}{'index_entry'}{'content_normalized'}
 = 
$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'args'}[0]{'contents'};
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[11]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[12]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[13]{'args'}[0]{'contents'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[13]{'args'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[13]{'args'}[0]{'parent'}
 = $result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[13];
+$result_trees{'brace_in_index'}{'contents'}[0]{'contents'}[13]{'parent'} = 
$result_trees{'brace_in_index'}{'contents'}[0];
+$result_trees{'brace_in_index'}{'contents'}[0]{'parent'} = 
$result_trees{'brace_in_index'};
+
+$result_texis{'brace_in_index'} = '@{
+
+@math{@{}
+
+@displaymath
+@{
+@end displaymath
+
+@cindex @{
+
+@cindex @math{@{}
+
+@cindex @samp{@{}
+
+@printindex cp
+';
+
+
+$result_texts{'brace_in_index'} = '{
+
+{
+
+{
+
+
+
+
+';
+
+$result_errors{'brace_in_index'} = [
+  {
+    'error_line' => 'warning: entry for index `cp\' outside of any node
+',
+    'file_name' => '',
+    'line_nr' => 9,
+    'macro' => '',
+    'text' => 'entry for index `cp\' outside of any node',
+    'type' => 'warning'
+  },
+  {
+    'error_line' => 'warning: entry for index `cp\' outside of any node
+',
+    'file_name' => '',
+    'line_nr' => 11,
+    'macro' => '',
+    'text' => 'entry for index `cp\' outside of any node',
+    'type' => 'warning'
+  },
+  {
+    'error_line' => 'warning: entry for index `cp\' outside of any node
+',
+    'file_name' => '',
+    'line_nr' => 13,
+    'macro' => '',
+    'text' => 'entry for index `cp\' outside of any node',
+    'type' => 'warning'
+  },
+  {
+    'error_line' => 'warning: printindex before document beginning: 
@printindex cp
+',
+    'file_name' => '',
+    'line_nr' => 15,
+    'macro' => '',
+    'text' => 'printindex before document beginning: @printindex cp',
+    'type' => 'warning'
+  }
+];
+
+
+$result_floats{'brace_in_index'} = {};
+
+
+$result_indices_sort_strings{'brace_in_index'} = {
+  'cp' => [
+    '{',
+    '{',
+    '{'
+  ]
+};
+
+
+
+$result_converted{'latex'}->{'brace_in_index'} = '\\begin{document}
+\\{
+
+$\\{$
+
+$$
+\\{
+$$
+
+\\index[cp]{\\textbraceleft{}}%
+
+\\index[cp]{$\\lbrace{}$}%
+
+\\index[cp]{`\\texttt{\\textbraceleft{}}\'}%
+
+\\printindex[cp]
+';
+
+
+$result_converted{'file_latex'}->{'brace_in_index'} = '\\documentclass{book}
+\\usepackage{imakeidx}
+\\usepackage{amsfonts}
+\\usepackage{amsmath}
+\\usepackage[gen]{eurosym}
+\\usepackage[T1]{fontenc}
+\\usepackage{textcomp}
+\\usepackage{graphicx}
+\\usepackage{etoolbox}
+\\usepackage{titleps}
+\\usepackage{float}
+% use hidelinks to remove boxes around links to be similar with Texinfo TeX
+\\usepackage[hidelinks]{hyperref}
+\\usepackage[utf8]{inputenc}
+
+\\makeatletter
+\\newcommand{\\GNUTexinfosettitle}{No Title}%
+
+\\makeindex[name=cp]%
+
+% redefine the \\mainmatter command such that it does not clear page
+% as if in double page
+\\renewcommand\\mainmatter{\\clearpage\\@mainmattertrue\\pagenumbering{arabic}}
+% add command aliases to use the same command in book and report
+\\newcommand\\GNUTexinfomainmatter{\\mainmatter}
+\\newcommand\\GNUTexinfofrontmatter{\\frontmatter}
+\\newenvironment{GNUTexinfopreformatted}{%
+  \\par\\obeylines\\obeyspaces\\frenchspacing
+  \\parskip=\\z@\\parindent=\\z@}{}
+% command that does nothing used to help with substitutions in commands
+\\newcommand{\\GNUTexinfoplaceholder}[1]{}
+
+% plain page style, for part and chapter, which call \\thispagestyle{plain}
+\\renewpagestyle{plain}{\\sethead[\\thepage{}][][]
+                             {}{}{\\thepage{}}}
+
+% single header
+\\newpagestyle{single}{\\sethead[\\chaptername{} \\thechapter{} 
\\chaptertitle{}][][\\thepage]
+                              {\\chaptername{} \\thechapter{} 
\\chaptertitle{}}{}{\\thepage}}
+
+% called when setting single headers
+\\newcommand{\\GNUTexinfosetsingleheader}{\\pagestyle{single}}
+
+% double header
+\\newpagestyle{double}{\\sethead[\\thepage{}][][\\GNUTexinfosettitle]
+                              {\\chaptername{} \\thechapter{} 
\\chaptertitle{}}{}{\\thepage}}
+
+% called when setting double headers
+\\newcommand{\\GNUTexinfosetdoubleheader}{\\pagestyle{double}}
+
+
+% avoid pagebreak and headings setting for a sectionning command
+\\newcommand{\\GNUTexinfonopagebreakheading}[2]{\\let\\clearpage\\relax 
\\let\\cleardoublepage\\relax \\let\\thispagestyle\\GNUTexinfoplaceholder 
#1{#2}}
+
+\\renewcommand{\\includegraphics}[1]{\\fbox{FIG \\detokenize{#1}}}
+
+\\makeatother
+% set default for @setchapternewpage
+\\makeatletter
+\\patchcmd{\\chapter}{\\if@openright\\cleardoublepage\\else\\clearpage\\fi}{\\GNUTexinfoplaceholder{setchapternewpage
 placeholder}\\clearpage}{}{}
+\\makeatother
+\\GNUTexinfosetsingleheader{}%
+
+\\begin{document}
+\\{
+
+$\\{$
+
+$$
+\\{
+$$
+
+\\index[cp]{\\textbraceleft{}}%
+
+\\index[cp]{$\\lbrace{}$}%
+
+\\index[cp]{`\\texttt{\\textbraceleft{}}\'}%
+
+\\printindex[cp]
+\\end{document}
+';
+
+1;



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