path: root/tools/fmt-bindings

#!/usr/bin/perl

# import module
use Getopt::Long; 

$semicolon = ";"; # help out stupid emacs
$in_group_def = 0;
$group_name;
$group_text;
$group_key;
$group_number = 0;
%group_names;
%group_text;
%group_bindings;
%modifier_map;
%group_numbering;

$platform = linux;

GetOptions ("platform=s" => \$platform);

if ($platform eq "osx") {
    $gtk_modifier_map{'PRIMARY'} = 'meta';
    $gtk_modifier_map{'SECONDARY'} = 'Mod1';
    $gtk_modifier_map{'TERTIARY'} = 'Shift';
    $gtk_modifier_map{'LEVEL4'} = 'Control';
    $gtk_modifier_map{'WINDOW'} = 'Mod1';

    $cs_modifier_map{'PRIMARY'} = 'Command';
    $cs_modifier_map{'SECONDARY'} = 'Alt';
    $cs_modifier_map{'TERTIARY'} = 'Shift';
    $cs_modifier_map{'LEVEL4'} = 'Control';
    $cs_modifier_map{'WINDOW'} = 'Alt';

} else {

    $gtk_modifier_map{'PRIMARY'} = 'Control';
    $gtk_modifier_map{'SECONDARY'} = 'Alt';
    $gtk_modifier_map{'TERTIARY'} = 'Shift';
    $gtk_modifier_map{'LEVEL4'} = 'Mod4';
    $gtk_modifier_map{'WINDOW'} = 'Alt';

    $cs_modifier_map{'PRIMARY'} = 'Control';
    $cs_modifier_map{'SECONDARY'} = 'Alt';
    $cs_modifier_map{'TERTIARY'} = 'Shift';
    $cs_modifier_map{'LEVEL4'} = 'Win';
    $cs_modifier_map{'WINDOW'} = 'Alt';
}

%keycodes = (
    'asciicircum' => '\\verb=^=',
    'apostrophe' => '\'',
    'bracketleft' => '[',
    'bracketright' => ']',
    'braceleft' => '\\{',
    'braceright' => '\\}',
    'backslash' => '$\\backslash$',
    'rightanglebracket' => '>',
    'leftanglebracket' => '<',
    'ampersand' => '\\&',
    'comma' => ',',
    'period' => '.',
    'semicolon' => ';',
    'colon' => ':',
    'equal' => '=',
    'minus' => '-',
    'plus' => '+',
    'grave' => '`',
    'rightarrow' => '$\rightarrow$',
    'leftarrow' => '$\\leftarrow$',
    'uparrow' => '$\\uparrow$',
    'downarrow' => '$\\downarrow$',
    'Page_Down' => 'Page Down',
    'Page_Up' => 'Page Up',
    'space' => 'space',
    'KP_' => 'KP$\_$'
    );

while (<>) {
    next if /^$semicolon/;

    if (/^%/) {
	
	if ($in_group_def) {
	    chop $group_text;
	    $group_names{$group_key} = $group_name;
	    $group_text{$group_key} = $group_text;
	    $group_numbering{$group_key} = $group_number;
	    # each binding entry is 2 element array. bindings
	    # are all collected into a container array. create
	    # the first dummy entry so that perl knows what we
	    # are doing.
	    $group_bindings{$group_key} = [ [] ];
	}

	s/^%//;
	chop;
	($group_key,$group_name) = split (/\s+/, $_, 2);
	$group_number++;
	$group_text = "";
	$in_group_def = 1;
	next;
    }

    if ($in_group_def) {
	if (/^@/) {
	    chop $group_text;
	    $group_names{$group_key} = $group_name;
	    $group_text{$group_key} = $group_text;
	    $in_group_def = 0;
	} else {
	    next if (/^[ \t]+$/);
	    $group_text .= $_;
	    $group_text;
	    next;
	}
    }

    if (/^@/) {
	s/^@//;
	chop;
	($key,$action,$binding,$text) = split (/\|/, $_, 4);

	# substitute bindings

	$gtk_binding = $binding;

	foreach $k (keys %gtk_modifier_map) {
	    $gtk_binding =~ s/\@$k\@/$gtk_modifier_map{$k}/;
	}

	# print the accelmap output

	if ($key =~ /^\+/) {
	    # remove + and don't print it in the accelmap
	    $key =~ s/^\+//;
	} else {
	    # include this in the accelmap
	    # print "(gtk_accel_map \"<Actions>/$action\" \"$gtk_binding\")\n";
	}

	if ($key =~ /^-/) {
	    # do not include this binding in the cheat sheet
	    next;
	}

	$bref = $group_bindings{$key};
	push (@$bref, [$binding, $text]);

	next;
    }

    next;
}

# Now print the cheatsheet

$boilerplate_header = <<END_HEADER;
\\documentclass[10pt,landscape]{article}
\\usepackage{multicol}
\\usepackage{calc}
\\usepackage{ifthen}
\\usepackage{palatino}
\\usepackage[landscape]{geometry}


% This sets page margins to .5 inch if using letter paper, and to 1cm
% if using A4 paper. (This probably isnott strictly necessary.)
% If using another size paper, use default 1cm margins.
\\ifthenelse{\\lengthtest { \\paperwidth = 11in}}
	{ \\geometry{top=.5in,left=.5in,right=.5in,bottom=.5in} }
	{\\ifthenelse{ \\lengthtest{ \\paperwidth = 297mm}}
		{\\geometry{top=1cm,left=1cm,right=1cm,bottom=1cm} }
		{\\geometry{top=1cm,left=1cm,right=1cm,bottom=1cm} }
	}

% Turn off header and footer
\\pagestyle{empty}
 
% Redefine section commands to use less space
\\makeatletter
\\renewcommand{\\section}{\\\@startsection{section}{1}{0mm}%
                                {-1ex plus -.5ex minus -.2ex}%
                                {0.5ex plus .2ex}%x
                                {\\normalfont\\large\\bfseries}}
\\renewcommand{\\subsection}{\\\@startsection{subsection}{2}{0mm}%
                                {-1explus -.5ex minus -.2ex}%
                                {0.5ex plus .2ex}%
                                {\\normalfont\\normalsize\\bfseries}}
\\renewcommand{\\subsubsection}{\\\@startsection{subsubsection}{3}{0mm}%
                                {-1ex plus -.5ex minus -.2ex}%
                                {1ex plus .2ex}%
                                {\\normalfont\\small\\bfseries}}
\\makeatother

% Define BibTeX command
\\def\\BibTeX{{\\rm B\\kern-.05em{\\sc i\\kern-.025em b}\\kern-.08em
    T\\kern-.1667em\\lower.7ex\\hbox{E}\\kern-.125emX}}

% Do not print section numbers
\\setcounter{secnumdepth}{0}

\\setlength{\\parindent}{0pt}
\\setlength{\\parskip}{0pt plus 0.5ex}

%-------------------------------------------

\\begin{document}
\\newlength{\\MyLen}
\\raggedright
\\footnotesize
\\begin{multicols}{3}
END_HEADER

$boilerplate_footer = <<END_FOOTER;
\\end{multicols}
\\end{document}
END_FOOTER

print $boilerplate_header;

@groups_sorted_by_number = sort { $group_numbering{$a} <=> $group_numbering{$b} } keys %group_numbering; 

foreach $gk (@groups_sorted_by_number) {
    # $bref is a reference to the array of arrays for this group
    $bref = $group_bindings{$gk};

    if (scalar @$bref > 1) {
	print "\\section*{$group_names{$gk}}\n";

	if (!($group_text{$gk} eq  "")) {
	    print "$group_text{$gk}\n\\par\n";
	}
	
	# ignore the first entry, which was empty

	shift (@$bref);

	# find the longest descriptive text (this is not 100% accuracy due to typography)

	$maxtextlen = 0;
	$maxtext = "";

	for $bbref (@$bref) {
	    # $bbref is a reference to an array
	    $text = @$bbref[1];
	    if ($text =~ /\\linebreak/) {
		$matchtext = s/\\linebreak.*//;
	    } else {
		$matchtext = $text;
	    }
	    if (length ($matchtext) > $maxtextlen) {
		$maxtextlen = length ($matchtext);
		$maxtext = $matchtext;
	    }
	}

	$maxtext .= "....";

	# set up the table

	print "\\settowidth{\\MyLen}{\\texttt{$maxtext}}\n";
	print "\\begin{tabular}{\@{}p{\\the\\MyLen}% 
                                \@{}p{\\linewidth-\\the\\MyLen}%
                                \@{}}\n";

	# now print the bindings

	for $bbref (@$bref) {
	    # $bbref is a reference to an array

	    $binding = @$bbref[0];
	    $text = @$bbref[1];

	    if ($binding =~ /:/) { # mouse binding with "where" clause
		($binding,$where) = split (/:/, $binding, 2);
	    }

	    $binding =~ s/></\+/g;
	    $binding =~ s/^<//;
	    $binding =~ s/>/\+/;

	    foreach $k (keys %cs_modifier_map) {
		$binding =~ s/\@$k\@/$cs_modifier_map{$k}/;
	    }

	    # substitute keycode names for something printable

	    $re = qr/${ \(join'|', map quotemeta, keys %keycodes)}/;
	    $binding =~ s/($re)/$keycodes{$1}/g;

	    # split up mouse bindings to "click" and "where" parts

	    if ($gk eq "mobject") {
		print "{\\tt @$bbref[1] } & {\\tt $binding} {\\it $where}\\\\\n";
	    } else {
		print "{\\tt @$bbref[1] } & {\\tt $binding} \\\\\n";
	    }
	}

	print "\\end{tabular}\n";

    }
}

print $boilerplate_footer;

exit 0;