#!/usr/bin/perl
use strict;
use warnings;

sub help {
  my $cmdname = $0;
  $cmdname =~ s:.*/::;
  print "$cmdname -- check LaTeX files.\n";
  print "  -help   Show this help.\n";
  print "  -defs=FILE  Use definitions in this file when checking others.\n";
  print "  -v      Verbose output for debugging this command.\n";
  print "\n";
  print "Checks for:\n";
  print " * backslashes at the end of a line\n";
  print " * non-ASCCI characters (suggests a LaTeX character for most)\n";
  print " * \\begin-\\end nesting\n";
  print " * curly brace { } nesting\n";
  print " * undefined commands and counters\n";
  print " * commands and counters defined but not used\n";
}


if (!@ARGV) {
  &help;
  exit 0;
}

my $arg;
my $fname = "";
my $lineno = 0;
my %builtin = ();
my %commandsHash = ();
my %newCommandsHash = ();
my %defaultNewCommandsHash = ();
my @braceStack = ();
my $v = "";
my $saveCommands = "";

&setup;

foreach $arg (@ARGV) {
  if    ($arg =~ /^-+help/) {
    &help;
    exit 0;
  }
  elsif ($arg =~ /^-+v$/) {
    $v = "y";
  }
  elsif ($arg =~ /^-+defs=(.+)$/) {
    $fname = $arg;
    $fname =~   s/^-+defs=(.+)$/$1/;
    open FILE, "<$fname";
    $saveCommands = "y";
    &latexFile;
    $saveCommands = "";
    close FILE;
  }
  elsif ($arg =~ /^-+.*/) {
    print "Unexpected option \"$arg\".\n";
    exit -1;
  }
  else {
    $fname = $arg;
    open FILE, "<$fname";
    &latexFile;
    close FILE;
  }
}


# Handle a single file
sub latexFile {
  print "Checking $fname\n";
  my $indent = "";
  %commandsHash = ();
  %newCommandsHash = ();
  $lineno = 0;
  while (<FILE>) {
    ++$lineno;
    if ($v) {  print "($fname:$lineno)\n";  }
    chomp;
    if    (/\\\\$/) {
      # do nothing
    }
    elsif (/\\$/) {
      print "($fname:$lineno)  Backslash at end of line.\n";
    }
    &decomment;
    #print "b";
    &badChars;
    #print "A";
    &braceCheck;
    #print "c";
    &findCommands;
    #print "d";
    if    (/\\begin{/) {
      my $env = $_;
      $env =~ s/.*\\begin{([^}]*)}.*/$1/;
      my $envPattern = $env;
      if ($envPattern =~ /\*/) {
        $envPattern =~ s/\*/\\*/;
      }
      my $rest = $_;
      $rest =~ s/.*\\begin{([^}]*)}//;
      if ($rest =~ /$envPattern/) {
      }
      else {
        #print "($fname:$lineno)  ${indent}Found \\begin{$env}, looking for \\end{$env}.\n";
        &balance("\\\\end{$envPattern}", "\\end{$env}", $indent, "($fname:$lineno)");
      }
    }
  }
  &exiting;
}

# Look for bad characters in $_
sub badChars {
  #print "badchars ";
  # Apparently Perl uses some non-ascii characters as regex metacharacters internally.
  if (/Þ/) {  print "($fname:$lineno)  Non-ascii `Þ' instead of `fi'.\n";  }
  #print "a";
  #if (/?/) {  print "($fname:$lineno)  Non-ascii `?' instead of `ff'.\n";  }
  #if (/?/) {  print "($fname:$lineno)  Non-ascii `?' instead of `ffi'.\n";  }
  if (/Ò/) {  print "($fname:$lineno)  Non-ascii `Ò' (left double quote) instead of \"``\".\n";  }
  #print "b";
  if (/Ó/) {  print "($fname:$lineno)  Non-ascii `Ó' (right double quote) instead of \"''\".\n";  }
  #print "c";
  if (/Ô/) {  print "($fname:$lineno)  Non-ascii `Ô' (left single quote) instead of \"``\".\n";  }
  #print "d";
  if (/Õ/) {  print "($fname:$lineno)  Non-ascii `Õ' (right single quote) instead of \"''\".\n";  }
  #print "e";
  if (/Ñ/) {  print "($fname:$lineno)  Non-ascii `Ñ' instead of `---'.\n";  }
  #print "f";
  if (/Ð/) {  print "($fname:$lineno)  Non-ascii `Ð' instead of `--'.\n";  }
  #print "g";
  if (/Â/) {  print "($fname:$lineno)  Non-ascii `Â' instead of `\\-'.\n";  }
  #print "h";
  #if (/?/) {  print "($fname:$lineno)  Non-ascii `?' (m-space) instead of ` '.\n";  }
  #if (/?/) {  print "($fname:$lineno)  Non-ascii `?' (n-space) instead of ` '.\n";  }
  if (/É/) {  print "($fname:$lineno)  Non-ascii `É' instead of `...'.\n";  }
  # Other likely misuses
  if (/ - /) {  print "($fname:$lineno)  Hyphen '-' instead of dash.\n";  }
  if (/ -- /) {  print "($fname:$lineno)  N-dash '--' instead of m-dash.\n";  }
  #print "i\n";
}

# Balance \begins and \ends
sub balance {
  my $pattern = $_[0];
  my $echo    = $_[1];
  my $indent  = $_[2];
  my $from    = $_[3];
  while (<FILE>) {
    ++$lineno;
    chomp;
    &decomment;
    &badChars;
    &braceCheck;
    &findCommands;
    if    (/\\begin{/) {
      my $env = $_;
      $env =~ s/.*\\begin{([^}]*)}.*/$1/;
      my $envPattern = $env;
      if ($envPattern =~ /\*/) {
        $envPattern =~ s/\*/\\*/;
      }
      my $rest = $_;
      $rest =~ s/.*\\begin{([^}]*)}//;
      if ($rest =~ /$envPattern/) {
      }
      else {
        #print "($fname:$lineno)  ${indent}Found \\begin{$env}, looking for \\end{$env}.\n";
        &balance("\\\\end{$envPattern}", "\\end{$env}", $indent, "($fname:$lineno)");
      }
    }
    elsif (/$pattern/) {
      #print "($fname:$lineno)  ${indent}Found $echo.\n";
      return;
    }
    elsif (/\\end{[^}]*}/) {
      my $unbegun = $_;
      $unbegun =~ s/.*(\\end{[^}]*}).*/$1/;
      print "($fname:$lineno)  ${indent}Unexpected `$unbegun' while seeking `$echo' begun at $from.\n";
      &exiting;
    }
  }
  print "($fname:$lineno)  ${indent}End-of-file while seeking `$echo' begun at $from.\n";
  &exiting;
}

# Keep track of brace balancing in $_ in successive calls (one per line read)
sub braceCheck {
  # Braces can't span paragraphs, apparently
  if ($_ eq "") {
    if (scalar @braceStack) {
      my $from = $braceStack[(scalar @braceStack) - 1];
      $from =~ s/  \([^:]*:([0-9]+)\).*/$1/;
      &exiting("($fname:$lineno)  Unexpected blank line (new paragraph) before brace from line $from was closed.\n");
    }
    return;
  }
  my $work = $_;
  while ($work =~ /[{}]/) {
    $work =~ s/^[^{}]+//;
    if    ($work =~ /^\{/) {
      push @braceStack, "  ($fname:$lineno)  `$work'\n";
    }
    elsif ($work =~ /^}/)  {
      if (@braceStack) {
        pop @braceStack;
      }
      else {
        &exiting("Unmatched '}':\n  ($fname:$lineno)  `$work'.\n");
      }
    }
    else {
      #  About to exit the loop, presumably.
    }
    $work =~ s/^.//;
  }
}

# Elide comments
sub decomment {
  if    (/^%/) {
    s/^%.*/ /;
  }
  elsif (/([^\\])%/) {
    s/([^\\])%.*/$1%/;
    #print "Escaped percent: $_\n";
  }
}

# Exit but don't forget pending problems
sub exiting {
  &undefineds;
  if ($saveCommands) {
    # do nothing
  }
  else {
    &unuseds;
  }
  if (@braceStack) {
    print "Braces unmatched at end of file:\n";
    while (@braceStack) {
      print pop @braceStack;
    }
  }
  while (@_) {
    print pop @_;
  }
  # exit;
}

# Find a command in $_
sub findCommands {
  my $work = $_;
  while ($work =~ /\\/) {
    $work =~ s/[^\\]*//;
    my $cmd = $work;
    if ($work =~ /^(\\[\$a-zA-Z])/) {
      $cmd   =~ s/^(\\.[^]\\{}`~!@#\$^&*()_+=[|:;"'<,>.?\/ 0-9-]*).*/$1/;
      $work  =~ s/^(\\.[^]\\{}`~!@#\$^&*()_+=[|:;"'<,>.?\/ 0-9-]*)//;
      if ($v) {
        print "($fname:$lineno)  Found command \"$cmd\".\n";
      }
    }
    else {
      $cmd  =~ s/(\\.).*/$1/;
      $work =~ s/(\\.)//;
    }
    $commandsHash{$cmd} = "($fname:$lineno)";
  }
  if (/\\newcommand/) {
    my $newcommand = $_;
    $newcommand =~ s/.*\\newcommand{(\\[^}]*)}.*/$1/;
    $newCommandsHash{$newcommand} = "($fname:$lineno)";
    if ($saveCommands) {
      $defaultNewCommandsHash{$newcommand} = "($fname:$lineno)";
    }
    if ($v) {
      print "($fname:$lineno)  Found new command \"$newcommand\".\n";
    }
  }
  if (/\\newcounter/) {
    my $newcommand = $_;
    $newcommand =~ s/.*\\newcounter{([^}]*)}.*/\\the$1/;
    $newCommandsHash{"$newcommand"} = "($fname:$lineno)";
    if ($saveCommands) {
      $defaultNewCommandsHash{"$newcommand"} = "($fname:$lineno)";
    }
    if ($v) {
      print "($fname:$lineno)  Found new counter \"$newcommand\".\n";
    }
  }
}

# Did we find any undefined commands?
sub undefineds {
  my @commandList = reverse sort keys %commandsHash;
  while (@commandList) {
    my $cmd = pop @commandList;
    if    (exists $builtin{$cmd}) {
    }
    elsif (exists $newCommandsHash{$cmd}) {
    }
    elsif (exists $defaultNewCommandsHash{$cmd}) {
    }
    else {
      print "Undefined:  $cmd  $commandsHash{$cmd}\n";
    }
  }
}

# Did we find any definitions of commands that were never used?
sub unuseds {
  my @commandList = reverse sort keys %newCommandsHash;
  while (@commandList) {
    my $cmd = pop @commandList;
    if    (exists $commandsHash{$cmd} && exists $newCommandsHash{$cmd} &&
           $commandsHash{$cmd} eq $newCommandsHash{$cmd}) {
      print "Unused:  $cmd  $newCommandsHash{$cmd}\n";
    }
    else {
      #print "Used:  $cmd  $newCommandsHash{$cmd}\n";
    }
  }
}

sub setup {
%builtin = (

  # Lamport
  ("\\ ", "(builtin)"),
  ("\\!", "(builtin)"),
  ("\\#", "(builtin)"),
  ("\\%", "(builtin)"),
  ("\\&", "(builtin)"),
  ("\\'", "(builtin)"),
  ("\\*", "(builtin)"),
  ("\\*[", "(builtin)"),
  ("\\+", "(builtin)"),
  ("\\,", "(builtin)"),
  ("\\-", "(builtin)"),
  ("\\.", "(builtin)"),
  ("\\:", "(builtin)"),
  ("\\;", "(builtin)"),
  ("\\<", "(builtin)"),
  ("\\=", "(builtin)"),
  ("\\>", "(builtin)"),
  ("\\Alph", "(builtin)"),
  ("\\Bbb", "(builtin)"),
  ("\\Bbbk", "(builtin)"),
  ("\\Bumpeq", "(builtin)"),
  ("\\Cap", "(builtin)"),
  ("\\Cup", "(builtin)"),
  ("\\Delta", "(builtin)"),
  ("\\Downarrow", "(builtin)"),
  ("\\Finv", "(builtin)"),
  ("\\Game", "(builtin)"),
  ("\\Gamma", "(builtin)"),
  ("\\H", "(builtin)"),
  ("\\Huge", "(builtin)"),
  ("\\Im", "(builtin)"),
  ("\\LARGE", "(builtin)"),
  ("\\LaTeX", "(builtin)"),
  ("\\Lambda", "(builtin)"),
  ("\\Large", "(builtin)"),
  ("\\Leftarrow", "(builtin)"),
  ("\\Leftrightarrow", "(builtin)"),
  ("\\Lleftarrow", "(builtin)"),
  ("\\Longleftarrow", "(builtin)"),
  ("\\Longleftrightarrow", "(builtin)"),
  ("\\Longrightarrow", "(builtin)"),
  ("\\Lsh", "(builtin)"),
  ("\\Omega", "(builtin)"),
  ("\\P", "(builtin)"),
  ("\\Phi", "(builtin)"),
  ("\\Pi", "(builtin)"),
  ("\\Pr", "(builtin)"),
  ("\\Psi", "(builtin)"),
  ("\\Re", "(builtin)"),
  ("\\Rightarrow", "(builtin)"),
  ("\\Roman", "(builtin)"),
  ("\\Rsh", "(builtin)"),
  ("\\S", "(builtin)"),
  ("\\Sigma", "(builtin)"),
  ("\\Subset", "(builtin)"),
  ("\\Supset", "(builtin)"),
  ("\\TeX", "(builtin)"),
  ("\\Theta", "(builtin)"),
  ("\\Uparrow", "(builtin)"),
  ("\\Updownarrow", "(builtin)"),
  ("\\Upsilon", "(builtin)"),
  ("\\Vdash", "(builtin)"),
  ("\\Vvdash", "(builtin)"),
  ("\\Xi", "(builtin)"),
  ("\\[", "(builtin)"),
  ("\\\"", "(builtin)"),
  ("\\\$", "(builtin)"),
  ("\\\@", "(builtin)"),
  ("\\\\", "(builtin)"),
  ("\\]", "(builtin)"),
  ("\\^", "(builtin)"),
  ("\\_", "(builtin)"),
  ("\\`", "(builtin)"),
  ("\\a'", "(builtin)"),
  ("\\a=", "(builtin)"),
  ("\\a`", "(builtin)"),
  ("\\abovedisplayshortskip", "(builtin)"),
  ("\\abovedisplayskip", "(builtin)"),
  ("\\acute", "(builtin)"),
  ("\\addcontentsline", "(builtin)"),
  ("\\addtocontents", "(builtin)"),
  ("\\addtocounter", "(builtin)"),
  ("\\addtolength", "(builtin)"),
  ("\\addvspace", "(builtin)"),
  ("\\advancepageno", "(builtin)"),
  ("\\aleph", "(builtin)"),
  ("\\alph", "(builtin)"),
  ("\\alpha", "(builtin)"),
  ("\\amalg", "(builtin)"),
  ("\\angle", "(builtin)"),
  ("\\appendix", "(builtin)"),
  ("\\approx", "(builtin)"),
  ("\\approxeq", "(builtin)"),
  ("\\arabic", "(builtin)"),
  ("\\arccos", "(builtin)"),
  ("\\arcsin", "(builtin)"),
  ("\\arctan", "(builtin)"),
  ("\\arg", "(builtin)"),
  ("\\arraycolsep", "(builtin)"),
  ("\\arrayrulewidth", "(builtin)"),
  ("\\arraystgretch", "(builtin)"),
  ("\\ast", "(builtin)"),
  ("\\asymp", "(builtin)"),
  ("\\author", "(builtin)"),
  ("\\b", "(builtin)"),
  ("\\backprime", "(builtin)"),
  ("\\backsim", "(builtin)"),
  ("\\backsimeq", "(builtin)"),
  ("\\backslash", "(builtin)"),
  ("\\bar", "(builtin)"),
  ("\\barwedge", "(builtin)"),
  ("\\baselineskip", "(builtin)"),
  ("\\baselinestretch", "(builtin)"),
  ("\\because", "(builtin)"),
  ("\\begin", "(builtin)"),
  ("\\beginsection", "(builtin)"),
  ("\\belowdisplayshortskip", "(builtin)"),
  ("\\belowdisplayskip", "(builtin)"),
  ("\\beta", "(builtin)"),
  ("\\beth", "(builtin)"),
  ("\\between", "(builtin)"),
  ("\\bfseries", "(builtin)"),
  ("\\bibindent", "(builtin)"),
  ("\\bibliography", "(builtin)"),
  ("\\bibliographystyle", "(builtin)"),
  ("\\bigcap", "(builtin)"),
  ("\\bigcirc", "(builtin)"),
  ("\\bigcup", "(builtin)"),
  ("\\bigodot", "(builtin)"),
  ("\\bigoplus", "(builtin)"),
  ("\\bigotimes", "(builtin)"),
  ("\\bigskip", "(builtin)"),
  ("\\bigsqcup", "(builtin)"),
  ("\\bigstar", "(builtin)"),
  ("\\bigtriangledown", "(builtin)"),
  ("\\bigtriangleup", "(builtin)"),
  ("\\biguplus", "(builtin)"),
  ("\\bigvee", "(builtin)"),
  ("\\bigwedge", "(builtin)"),
  ("\\blacklozenge", "(builtin)"),
  ("\\blacksquare", "(builtin)"),
  ("\\blacktriangle", "(builtin)"),
  ("\\blacktriangledown", "(builtin)"),
  ("\\blacktriangleleft", "(builtin)"),
  ("\\blacktriangleright", "(builtin)"),
  ("\\bmod", "(builtin)"),
  ("\\boldmath", "(builtin)"),
  ("\\boldsymbol", "(builtin)"),
  ("\\boolean", "(builtin)"),
  ("\\bot", "(builtin)"),
  ("\\bottomfraction", "(builtin)"),
  ("\\bottomnumber", "(builtin)"),
  ("\\bowtie", "(builtin)"),
  ("\\boxdot", "(builtin)"),
  ("\\boxminus", "(builtin)"),
  ("\\boxplus", "(builtin)"),
  ("\\boxtimes", "(builtin)"),
  ("\\breve", "(builtin)"),
  ("\\bullet", "(builtin)"),
  ("\\bumpeq", "(builtin)"),
  ("\\bye", "(builtin)"),
  ("\\c", "(builtin)"),
  ("\\cap", "(builtin)"),
  ("\\caption", "(builtin)"),
  ("\\caption[", "(builtin)"),
  ("\\cdot", "(builtin)"),
  ("\\cdots", "(builtin)"),
  ("\\centerdot", "(builtin)"),
  ("\\centering", "(builtin)"),
  ("\\chapter", "(builtin)"),
  ("\\chapter*", "(builtin)"),
  ("\\chapter[", "(builtin)"),
  ("\\check", "(builtin)"),
  ("\\chi", "(builtin)"),
  ("\\circ", "(builtin)"),
  ("\\circeq", "(builtin)"),
  ("\\circle", "(builtin)"),
  ("\\circle*", "(builtin)"),
  ("\\circlearrowleft", "(builtin)"),
  ("\\circlearrowright", "(builtin)"),
  ("\\circledS", "(builtin)"),
  ("\\circledast", "(builtin)"),
  ("\\circledcirc", "(builtin)"),
  ("\\circleddash", "(builtin)"),
  ("\\cite", "(builtin)"),
  ("\\cite[", "(builtin)"),
  ("\\cleardoublepage", "(builtin)"),
  ("\\clearpage", "(builtin)"),
  ("\\cleartabs", "(builtin)"),
  ("\\cline", "(builtin)"),
  ("\\clubsuit", "(builtin)"),
  ("\\color", "(builtin)"),
  ("\\colorbox", "(builtin)"),
  ("\\columnsep", "(builtin)"),
  ("\\columnseprule", "(builtin)"),
  ("\\columnwidth", "(builtin)"),
  ("\\complement", "(builtin)"),
  ("\\cong", "(builtin)"),
  ("\\coprod", "(builtin)"),
  ("\\copyright", "(builtin)"),
  ("\\cos", "(builtin)"),
  ("\\cosh", "(builtin)"),
  ("\\cot", "(builtin)"),
  ("\\coth", "(builtin)"),
  ("\\csc", "(builtin)"),
  ("\\cup", "(builtin)"),
  ("\\curlyeqprec", "(builtin)"),
  ("\\curlyeqsucc", "(builtin)"),
  ("\\curlyvee", "(builtin)"),
  ("\\curlywedge", "(builtin)"),
  ("\\curvearrowleft", "(builtin)"),
  ("\\curvearrowright", "(builtin)"),
  ("\\d", "(builtin)"),
  ("\\dag", "(builtin)"),
  ("\\dagger", "(builtin)"),
  ("\\daleth", "(builtin)"),
  ("\\dashbox", "(builtin)"),
  ("\\dashleftarrow", "(builtin)"),
  ("\\dashrightarrow", "(builtin)"),
  ("\\dashv", "(builtin)"),
  ("\\date", "(builtin)"),
  ("\\dblfloatpagefraction", "(builtin)"),
  ("\\dblfloatsep", "(builtin)"),
  ("\\dbltextfloatsep", "(builtin)"),
  ("\\dbltopfraction", "(builtin)"),
  ("\\ddag", "(builtin)"),
  ("\\ddagger", "(builtin)"),
  ("\\ddot", "(builtin)"),
  ("\\ddots", "(builtin)"),
  ("\\definecolor", "(builtin)"),
  ("\\deg", "(builtin)"),
  ("\\delta", "(builtin)"),
  ("\\depth", "(builtin)"),
  ("\\det", "(builtin)"),
  ("\\diagdown", "(builtin)"),
  ("\\diagup", "(builtin)"),
  ("\\diamond", "(builtin)"),
  ("\\diamondsuit", "(builtin)"),
  ("\\digamma", "(builtin)"),
  ("\\dim", "(builtin)"),
  ("\\displaystyle", "(builtin)"),
  ("\\div", "(builtin)"),
  ("\\divideontimes", "(builtin)"),
  ("\\documentclass", "(builtin)"),
  ("\\documentclass[", "(builtin)"),
  ("\\dosupereject", "(builtin)"),
  ("\\dot", "(builtin)"),
  ("\\doteq", "(builtin)"),
  ("\\doteqdot", "(builtin)"),
  ("\\dotplus", "(builtin)"),
  ("\\doublebarwedge", "(builtin)"),
  ("\\doublerulesep", "(builtin)"),
  ("\\downarrow", "(builtin)"),
  ("\\downdownarrows", "(builtin)"),
  ("\\downharpoonleft", "(builtin)"),
  ("\\downharpoonright", "(builtin)"),
  ("\\ell", "(builtin)"),
  ("\\emph", "(builtin)"),
  ("\\emptyset", "(builtin)"),
  ("\\end", "(builtin)"),
  ("\\endinsert", "(builtin)"),
  ("\\enlargethispage", "(builtin)"),
  ("\\enlargethispage*", "(builtin)"),
  ("\\ensuremath", "(builtin)"),
  ("\\epsilon", "(builtin)"),
  ("\\eqalign", "(builtin)"),
  ("\\eqalignno", "(builtin)"),
  ("\\eqcirc", "(builtin)"),
  ("\\eqslantgtr", "(builtin)"),
  ("\\eqslantless", "(builtin)"),
  ("\\equal", "(builtin)"),
  ("\\equiv", "(builtin)"),
  ("\\eta", "(builtin)"),
  ("\\eth", "(builtin)"),
  ("\\exists", "(builtin)"),
  ("\\exp", "(builtin)"),
  ("\\fallingdotseq", "(builtin)"),
  ("\\fbox", "(builtin)"),
  ("\\fboxrule", "(builtin)"),
  ("\\fboxsep", "(builtin)"),
  ("\\fcolorbox", "(builtin)"),
  ("\\fill", "(builtin)"),
  ("\\fivebf", "(builtin)"),
  ("\\fivei", "(builtin)"),
  ("\\fiverm", "(builtin)"),
  ("\\fivesy", "(builtin)"),
  ("\\flat", "(builtin)"),
  ("\\floatpagefraction", "(builtin)"),
  ("\\floatsep", "(builtin)"),
  ("\\fnsymbol", "(builtin)"),
  ("\\folio", "(builtin)"),
  ("\\footline", "(builtin)"),
  ("\\footnote", "(builtin)"),
  ("\\footnote[", "(builtin)"),
  ("\\footnotemark", "(builtin)"),
  ("\\footnotemark[", "(builtin)"),
  ("\\footnoterule", "(builtin)"),
  ("\\footnotesep", "(builtin)"),
  ("\\footnotesize", "(builtin)"),
  ("\\footnotetext", "(builtin)"),
  ("\\footnotetext[", "(builtin)"),
  ("\\footstrut", "(builtin)"),
  ("\\forall", "(builtin)"),
  ("\\frac", "(builtin)"),
  ("\\fragile", "(builtin)"),
  ("\\frak", "(builtin)"),
  ("\\frame", "(builtin)"),
  ("\\framebox", "(builtin)"),
  ("\\framebox(", "(builtin)"),
  ("\\framebox[", "(builtin)"),
  ("\\frenchspacing", "(builtin)"),
  ("\\frown", "(builtin)"),
  ("\\fussy", "(builtin)"),
  ("\\gamma", "(builtin)"),
  ("\\gcd", "(builtin)"),
  ("\\geq", "(builtin)"),
  ("\\geqq", "(builtin)"),
  ("\\geqslant", "(builtin)"),
  ("\\gg", "(builtin)"),
  ("\\ggg", "(builtin)"),
  ("\\gimel", "(builtin)"),
  ("\\glossary", "(builtin)"),
  ("\\gnapprox", "(builtin)"),
  ("\\gneq", "(builtin)"),
  ("\\gneqq", "(builtin)"),
  ("\\gnsim", "(builtin)"),
  ("\\graphpaper(", "(builtin)"),
  ("\\graphpaper[", "(builtin)"),
  ("\\grave", "(builtin)"),
  ("\\gtrapprox", "(builtin)"),
  ("\\gtrdot", "(builtin)"),
  ("\\gtreqless", "(builtin)"),
  ("\\gtreqqless", "(builtin)"),
  ("\\gtrless", "(builtin)"),
  ("\\gtrsim", "(builtin)"),
  ("\\gvertneqq", "(builtin)"),
  ("\\hat", "(builtin)"),
  ("\\hbar", "(builtin)"),
  ("\\headline", "(builtin)"),
  ("\\heartsuit", "(builtin)"),
  ("\\height", "(builtin)"),
  ("\\hfill", "(builtin)"),
  ("\\hline", "(builtin)"),
  ("\\hom", "(builtin)"),
  ("\\hookleftarrow", "(builtin)"),
  ("\\hookrightarrow", "(builtin)"),
  ("\\hslash", "(builtin)"),
  ("\\hspace", "(builtin)"),
  ("\\hspace*", "(builtin)"),
  ("\\huge", "(builtin)"),
  ("\\hyphenation", "(builtin)"),
  ("\\ifthenelse", "(builtin)"),
  ("\\imath", "(builtin)"),
  ("\\in", "(builtin)"),
  ("\\include", "(builtin)"),
  ("\\includegraphics", "(builtin)"),
  ("\\includegraphics*", "(builtin)"),
  ("\\includegraphics*[", "(builtin)"),
  ("\\includegraphics[", "(builtin)"),
  ("\\includeonly", "(builtin)"),
  ("\\indent", "(builtin)"),
  ("\\index", "(builtin)"),
  ("\\inf", "(builtin)"),
  ("\\infty", "(builtin)"),
  ("\\input", "(builtin)"),
  ("\\int", "(builtin)"),
  ("\\intercal", "(builtin)"),
  ("\\intextsep", "(builtin)"),
  ("\\iota", "(builtin)"),
  ("\\isodd", "(builtin)"),
  ("\\item", "(builtin)"),
  ("\\item[", "(builtin)"),
  ("\\itemindent", "(builtin)"),
  ("\\itemsep", "(builtin)"),
  ("\\itshape", "(builtin)"),
  ("\\jmath", "(builtin)"),
  ("\\jot", "(builtin)"),
  ("\\kappa", "(builtin)"),
  ("\\ker", "(builtin)"),
  ("\\kill", "(builtin)"),
  ("\\label", "(builtin)"),
  ("\\labelsep", "(builtin)"),
  ("\\labelwidth", "(builtin)"),
  ("\\lambda", "(builtin)"),
  ("\\large", "(builtin)"),
  ("\\ldots", "(builtin)"),
  ("\\left(", "(builtin)"),
  ("\\left)", "(builtin)"),
  ("\\left/", "(builtin)"),
  ("\\left[", "(builtin)"),
  ("\\left\\(", "(builtin)"),
  ("\\left\\)", "(builtin)"),
  ("\\left\\Downarrow", "(builtin)"),
  ("\\left\\Uparrow", "(builtin)"),
  ("\\left\\Updownarrow", "(builtin)"),
  ("\\left\\backslash", "(builtin)"),
  ("\\left\\downarrow", "(builtin)"),
  ("\\left\\langle", "(builtin)"),
  ("\\left\\lceil", "(builtin)"),
  ("\\left\\lfloor", "(builtin)"),
  ("\\left\\rangle", "(builtin)"),
  ("\\left\\rceil", "(builtin)"),
  ("\\left\\rfloor", "(builtin)"),
  ("\\left\\uparrow", "(builtin)"),
  ("\\left\\updownarrow", "(builtin)"),
  ("\\left\\|", "(builtin)"),
  ("\\left]", "(builtin)"),
  ("\\leftarrow", "(builtin)"),
  ("\\leftarrowtail", "(builtin)"),
  ("\\lefteqn", "(builtin)"),
  ("\\leftharpoondown", "(builtin)"),
  ("\\leftharpoonup", "(builtin)"),
  ("\\leftleftarrows", "(builtin)"),
  ("\\leftmargin", "(builtin)"),
  ("\\leftmargini", "(builtin)"),
  ("\\leftmarginii", "(builtin)"),
  ("\\leftmarginiii", "(builtin)"),
  ("\\leftmarginiv", "(builtin)"),
  ("\\leftmarginv", "(builtin)"),
  ("\\leftmarginvi", "(builtin)"),
  ("\\leftrightarrow", "(builtin)"),
  ("\\leftrightarrows", "(builtin)"),
  ("\\leftrightharpoons", "(builtin)"),
  ("\\leftrightsquigarrow", "(builtin)"),
  ("\\leftthreetimes", "(builtin)"),
  ("\\left|", "(builtin)"),
  ("\\lengthtest", "(builtin)"),
  ("\\leq", "(builtin)"),
  ("\\leqalignno", "(builtin)"),
  ("\\leqq", "(builtin)"),
  ("\\leqslant", "(builtin)"),
  ("\\lessapprox", "(builtin)"),
  ("\\lessdot", "(builtin)"),
  ("\\lesseqgtr", "(builtin)"),
  ("\\lesseqqgtr", "(builtin)"),
  ("\\lessgtr", "(builtin)"),
  ("\\lesssim", "(builtin)"),
  ("\\lg", "(builtin)"),
  ("\\lim", "(builtin)"),
  ("\\liminf", "(builtin)"),
  ("\\limsup", "(builtin)"),
  ("\\line(", "(builtin)"),
  ("\\linebreak", "(builtin)"),
  ("\\linebreak[", "(builtin)"),
  ("\\linethickness", "(builtin)"),
  ("\\linewidth", "(builtin)"),
  ("\\listfiles", "(builtin)"),
  ("\\listoffigures", "(builtin)"),
  ("\\listoftables", "(builtin)"),
  ("\\listparindent", "(builtin)"),
  ("\\ll", "(builtin)"),
  ("\\llcorner", "(builtin)"),
  ("\\lll", "(builtin)"),
  ("\\ln", "(builtin)"),
  ("\\lnapprox", "(builtin)"),
  ("\\lneq", "(builtin)"),
  ("\\lneqq", "(builtin)"),
  ("\\lnsim", "(builtin)"),
  ("\\log", "(builtin)"),
  ("\\longleftarrow", "(builtin)"),
  ("\\longleftrightarrow", "(builtin)"),
  ("\\longmapsto", "(builtin)"),
  ("\\longrightarrow", "(builtin)"),
  ("\\looparrowleft", "(builtin)"),
  ("\\looparrowright", "(builtin)"),
  ("\\lozenge", "(builtin)"),
  ("\\lrcorner", "(builtin)"),
  ("\\ltimes", "(builtin)"),
  ("\\lvertneqq", "(builtin)"),
  ("\\magnification", "(builtin)"),
  ("\\makebox", "(builtin)"),
  ("\\makebox(", "(builtin)"),
  ("\\makebox[", "(builtin)"),
  ("\\makefootline", "(builtin)"),
  ("\\makeglossary", "(builtin)"),
  ("\\makeheadline", "(builtin)"),
  ("\\makeindex", "(builtin)"),
  ("\\makelabel", "(builtin)"),
  ("\\maketitle", "(builtin)"),
  ("\\mapsto", "(builtin)"),
  ("\\marginpar", "(builtin)"),
  ("\\marginpar[", "(builtin)"),
  ("\\marginparpush", "(builtin)"),
  ("\\marginparsep", "(builtin)"),
  ("\\marginparwidth", "(builtin)"),
  ("\\markboth", "(builtin)"),
  ("\\markright", "(builtin)"),
  ("\\mathbf", "(builtin)"),
  ("\\mathcal", "(builtin)"),
  ("\\mathindent", "(builtin)"),
  ("\\mathit", "(builtin)"),
  ("\\mathrm", "(builtin)"),
  ("\\mathsf", "(builtin)"),
  ("\\mathtt", "(builtin)"),
  ("\\max", "(builtin)"),
  ("\\mbox", "(builtin)"),
  ("\\mdseries", "(builtin)"),
  ("\\measuredangle", "(builtin)"),
  ("\\medskip", "(builtin)"),
  ("\\mho", "(builtin)"),
  ("\\mid", "(builtin)"),
  ("\\midinsert", "(builtin)"),
  ("\\min", "(builtin)"),
  ("\\models", "(builtin)"),
  ("\\mp", "(builtin)"),
  ("\\mu", "(builtin)"),
  ("\\multicolumn", "(builtin)"),
  ("\\multimap", "(builtin)"),
  ("\\multiput(", "(builtin)"),
  ("\\nLeftarrow", "(builtin)"),
  ("\\nLeftrightarrow", "(builtin)"),
  ("\\nRightarrow", "(builtin)"),
  ("\\nVDash", "(builtin)"),
  ("\\nabla", "(builtin)"),
  ("\\natural", "(builtin)"),
  ("\\ncong", "(builtin)"),
  ("\\nearrow", "(builtin)"),
  ("\\neg", "(builtin)"),
  ("\\neq", "(builtin)"),
  ("\\newcommand", "(builtin)"),
  ("\\newcounter", "(builtin)"),
  ("\\newenvironment", "(builtin)"),
  ("\\newlength", "(builtin)"),
  ("\\newpage", "(builtin)"),
  ("\\newsavebox", "(builtin)"),
  ("\\newtheorem", "(builtin)"),
  ("\\nexists", "(builtin)"),
  ("\\ngeq", "(builtin)"),
  ("\\ngeqq", "(builtin)"),
  ("\\ngeqslant", "(builtin)"),
  ("\\ngtr", "(builtin)"),
  ("\\ni", "(builtin)"),
  ("\\nleftarrow", "(builtin)"),
  ("\\nleftrightarrow", "(builtin)"),
  ("\\nleq", "(builtin)"),
  ("\\nleqq", "(builtin)"),
  ("\\nleqslant", "(builtin)"),
  ("\\nless", "(builtin)"),
  ("\\nmid", "(builtin)"),
  ("\\nocite", "(builtin)"),
  ("\\noindent", "(builtin)"),
  ("\\nolinebreak", "(builtin)"),
  ("\\nolinebreak[", "(builtin)"),
  ("\\nonfrenchspacing", "(builtin)"),
  ("\\nopagebreak", "(builtin)"),
  ("\\nopagebreak[", "(builtin)"),
  ("\\nopagenumbers", "(builtin)"),
  ("\\normalbottom", "(builtin)"),
  ("\\normalfont", "(builtin)"),
  ("\\normalmarginpar", "(builtin)"),
  ("\\normalsize", "(builtin)"),
  ("\\notin", "(builtin)"),
  ("\\nparallel", "(builtin)"),
  ("\\nprec", "(builtin)"),
  ("\\npreceq", "(builtin)"),
  ("\\nrightarrow", "(builtin)"),
  ("\\nshortmid", "(builtin)"),
  ("\\nshortparallel", "(builtin)"),
  ("\\nsim", "(builtin)"),
  ("\\nsubseteq", "(builtin)"),
  ("\\nsucc", "(builtin)"),
  ("\\nsucceq", "(builtin)"),
  ("\\nsupseteq", "(builtin)"),
  ("\\nsupseteqq", "(builtin)"),
  ("\\ntriangleleft", "(builtin)"),
  ("\\ntrianglelefteq", "(builtin)"),
  ("\\ntriangleright", "(builtin)"),
  ("\\ntrianglerighteq", "(builtin)"),
  ("\\nu", "(builtin)"),
  ("\\nvDash", "(builtin)"),
  ("\\nvdash", "(builtin)"),
  ("\\nwarrow", "(builtin)"),
  ("\\odot", "(builtin)"),
  ("\\oint", "(builtin)"),
  ("\\oldstyle", "(builtin)"),
  ("\\omega", "(builtin)"),
  ("\\ominus", "(builtin)"),
  ("\\onecolumn", "(builtin)"),
  ("\\oplus", "(builtin)"),
  ("\\oslash", "(builtin)"),
  ("\\otimes", "(builtin)"),
  ("\\oval(", "(builtin)"),
  ("\\oval[", "(builtin)"),
  ("\\overline", "(builtin)"),
  ("\\pagebody", "(builtin)"),
  ("\\pagebreak", "(builtin)"),
  ("\\pagebreak[", "(builtin)"),
  ("\\pagecolor", "(builtin)"),
  ("\\pagecontents", "(builtin)"),
  ("\\pageinsert", "(builtin)"),
  ("\\pageno", "(builtin)"),
  ("\\pagenumbering", "(builtin)"),
  ("\\pageref", "(builtin)"),
  ("\\pagestyle", "(builtin)"),
  ("\\par", "(builtin)"),
  ("\\paragraph", "(builtin)"),
  ("\\paragraph*", "(builtin)"),
  ("\\paragraph[", "(builtin)"),
  ("\\parallel", "(builtin)"),
  ("\\parbox", "(builtin)"),
  ("\\parbox[", "(builtin)"),
  ("\\parindent", "(builtin)"),
  ("\\parsep", "(builtin)"),
  ("\\parskip", "(builtin)"),
  ("\\part", "(builtin)"),
  ("\\part*", "(builtin)"),
  ("\\part[", "(builtin)"),
  ("\\partial", "(builtin)"),
  ("\\partopsep", "(builtin)"),
  ("\\perp", "(builtin)"),
  ("\\phi", "(builtin)"),
  ("\\pi", "(builtin)"),
  ("\\pitchfork", "(builtin)"),
  ("\\plainoutput", "(builtin)"),
  ("\\pm", "(builtin)"),
  ("\\pmb", "(builtin)"),
  ("\\pmod", "(builtin)"),
  ("\\poptabs", "(builtin)"),
  ("\\pounds", "(builtin)"),
  ("\\prec", "(builtin)"),
  ("\\precapprox", "(builtin)"),
  ("\\preccurlyeq", "(builtin)"),
  ("\\preceq", "(builtin)"),
  ("\\precnapprox", "(builtin)"),
  ("\\precnsim", "(builtin)"),
  ("\\precsim", "(builtin)"),
  ("\\prime", "(builtin)"),
  ("\\printindex", "(builtin)"),
  ("\\prod", "(builtin)"),
  ("\\propto", "(builtin)"),
  ("\\protect", "(builtin)"),
  ("\\providecommand", "(builtin)"),
  ("\\psi", "(builtin)"),
  ("\\pushtabs", "(builtin)"),
  ("\\put(", "(builtin)"),
  ("\\qbezier(", "(builtin)"),
  ("\\qbezier[", "(builtin)"),
  ("\\qbeziermax", "(builtin)"),
  ("\\raggedleft", "(builtin)"),
  ("\\raggedright", "(builtin)"),
  ("\\raisebox", "(builtin)"),
  ("\\ref", "(builtin)"),
  ("\\refstepcounter", "(builtin)"),
  ("\\renewcommand", "(builtin)"),
  ("\\renewenvironment", "(builtin)"),
  ("\\resizebox", "(builtin)"),
  ("\\resizebox*", "(builtin)"),
  ("\\reversemarginpar", "(builtin)"),
  ("\\rho", "(builtin)"),
  ("\\right(", "(builtin)"),
  ("\\right)", "(builtin)"),
  ("\\right/", "(builtin)"),
  ("\\right[", "(builtin)"),
  ("\\right\\(", "(builtin)"),
  ("\\right\\)", "(builtin)"),
  ("\\right\\Downarrow", "(builtin)"),
  ("\\right\\Uparrow", "(builtin)"),
  ("\\right\\Updownarrow", "(builtin)"),
  ("\\right\\backslash", "(builtin)"),
  ("\\right\\downarrow", "(builtin)"),
  ("\\right\\langle", "(builtin)"),
  ("\\right\\lceil", "(builtin)"),
  ("\\right\\lfloor", "(builtin)"),
  ("\\right\\rangle", "(builtin)"),
  ("\\right\\rceil", "(builtin)"),
  ("\\right\\rfloor", "(builtin)"),
  ("\\right\\uparrow", "(builtin)"),
  ("\\right\\updownarrow", "(builtin)"),
  ("\\right\\|", "(builtin)"),
  ("\\right]", "(builtin)"),
  ("\\rightarrow", "(builtin)"),
  ("\\rightarrowtail", "(builtin)"),
  ("\\rightharpoondown", "(builtin)"),
  ("\\rightharpoonup", "(builtin)"),
  ("\\rightleftarrows", "(builtin)"),
  ("\\rightleftharpoons", "(builtin)"),
  ("\\rightmargin", "(builtin)"),
  ("\\rightrightarrows", "(builtin)"),
  ("\\rightsquigarrow", "(builtin)"),
  ("\\rightthreetimes", "(builtin)"),
  ("\\right|", "(builtin)"),
  ("\\risingdotseq", "(builtin)"),
  ("\\rmfamily", "(builtin)"),
  ("\\rotatebox", "(builtin)"),
  ("\\rp,am", "(builtin)"),
  ("\\rtimes", "(builtin)"),
  ("\\rule", "(builtin)"),
  ("\\rule[", "(builtin)"),
  ("\\savebox", "(builtin)"),
  ("\\sbox", "(builtin)"),
  ("\\scalebox", "(builtin)"),
  ("\\scriptscriptstyle", "(builtin)"),
  ("\\scriptsize", "(builtin)"),
  ("\\scriptstyle", "(builtin)"),
  ("\\scshape", "(builtin)"),
  ("\\searrow", "(builtin)"),
  ("\\sec", "(builtin)"),
  ("\\section", "(builtin)"),
  ("\\section*", "(builtin)"),
  ("\\section[", "(builtin)"),
  ("\\setcounter", "(builtin)"),
  ("\\setlength", "(builtin)"),
  ("\\setminus", "(builtin)"),
  ("\\settabs", "(builtin)"),
  ("\\settodepth", "(builtin)"),
  ("\\settoheight", "(builtin)"),
  ("\\settowidth", "(builtin)"),
  ("\\sevenbf", "(builtin)"),
  ("\\seveni", "(builtin)"),
  ("\\sevensy", "(builtin)"),
  ("\\sffamily", "(builtin)"),
  ("\\sharp", "(builtin)"),
  ("\\shortmid", "(builtin)"),
  ("\\shortparallel", "(builtin)"),
  ("\\shortstack", "(builtin)"),
  ("\\shortstack[", "(builtin)"),
  ("\\sigma", "(builtin)"),
  ("\\sim", "(builtin)"),
  ("\\simeq", "(builtin)"),
  ("\\sin", "(builtin)"),
  ("\\sinh", "(builtin)"),
  ("\\sloppy", "(builtin)"),
  ("\\slshape", "(builtin)"),
  ("\\small", "(builtin)"),
  ("\\smallfrown", "(builtin)"),
  ("\\smallsetminus", "(builtin)"),
  ("\\smallskip", "(builtin)"),
  ("\\smallsmile", "(builtin)"),
  ("\\smile", "(builtin)"),
  ("\\spadesuit", "(builtin)"),
  ("\\sphericalangle", "(builtin)"),
  ("\\sqcap", "(builtin)"),
  ("\\sqcup", "(builtin)"),
  ("\\sqrt", "(builtin)"),
  ("\\sqsubset", "(builtin)"),
  ("\\sqsubseteq", "(builtin)"),
  ("\\sqsupset", "(builtin)"),
  ("\\sqsupseteq", "(builtin)"),
  ("\\square", "(builtin)"),
  ("\\stackrel", "(builtin)"),
  ("\\star", "(builtin)"),
  ("\\stepcounter", "(builtin)"),
  ("\\stretch", "(builtin)"),
  ("\\subparagraph", "(builtin)"),
  ("\\subparagraph*", "(builtin)"),
  ("\\subparagraph[", "(builtin)"),
  ("\\subsection", "(builtin)"),
  ("\\subsection*", "(builtin)"),
  ("\\subsection[", "(builtin)"),
  ("\\subset", "(builtin)"),
  ("\\subseteq", "(builtin)"),
  ("\\subseteqq", "(builtin)"),
  ("\\subsetneq", "(builtin)"),
  ("\\subsetneqq", "(builtin)"),
  ("\\subsubsection", "(builtin)"),
  ("\\subsubsection*", "(builtin)"),
  ("\\subsubsection[", "(builtin)"),
  ("\\succ", "(builtin)"),
  ("\\succapprox", "(builtin)"),
  ("\\succcurlyeq", "(builtin)"),
  ("\\succeq", "(builtin)"),
  ("\\succnapprox", "(builtin)"),
  ("\\succnsim", "(builtin)"),
  ("\\succsim", "(builtin)"),
  ("\\sum", "(builtin)"),
  ("\\suppressfloats", "(builtin)"),
  ("\\suppressfloats[", "(builtin)"),
  ("\\supset", "(builtin)"),
  ("\\supseteq", "(builtin)"),
  ("\\supseteqq", "(builtin)"),
  ("\\supsetneq", "(builtin)"),
  ("\\supsetneqq", "(builtin)"),
  ("\\surd", "(builtin)"),
  ("\\swarrow", "(builtin)"),
  ("\\symbol", "(builtin)"),
  ("\\t", "(builtin)"),
  ("\\tabalign", "(builtin)"),
  ("\\tabbingsep", "(builtin)"),
  ("\\tabcolsep", "(builtin)"),
  ("\\tableofcontents", "(builtin)"),
  ("\\tabs", "(builtin)"),
  ("\\tabsdone", "(builtin)"),
  ("\\tabset", "(builtin)"),
  ("\\tan", "(builtin)"),
  ("\\tanh", "(builtin)"),
  ("\\tau", "(builtin)"),
  ("\\teni", "(builtin)"),
  ("\\text", "(builtin)"),
  ("\\textbf", "(builtin)"),
  ("\\textcolor", "(builtin)"),
  ("\\textfloatsep", "(builtin)"),
  ("\\textfraction", "(builtin)"),
  ("\\textit", "(builtin)"),
  ("\\textmd", "(builtin)"),
  ("\\textnormal", "(builtin)"),
  ("\\textrm", "(builtin)"),
  ("\\textsc", "(builtin)"),
  ("\\textsf", "(builtin)"),
  ("\\textsl", "(builtin)"),
  ("\\textstyle", "(builtin)"),
  ("\\texttt", "(builtin)"),
  ("\\textup", "(builtin)"),
  ("\\textwidth", "(builtin)"),
  ("\\thanks", "(builtin)"),
  ("\\therefore", "(builtin)"),
  ("\\theta", "(builtin)"),
  ("\\thickapprox", "(builtin)"),
  ("\\thicklines", "(builtin)"),
  ("\\thicksim", "(builtin)"),
  ("\\thinlines", "(builtin)"),
  ("\\thispagestyle", "(builtin)"),
  ("\\tilde", "(builtin)"),
  ("\\times", "(builtin)"),
  ("\\tiny", "(builtin)"),
  ("\\title", "(builtin)"),
  ("\\today", "(builtin)"),
  ("\\top", "(builtin)"),
  ("\\topfraction", "(builtin)"),
  ("\\topins", "(builtin)"),
  ("\\topinsert", "(builtin)"),
  ("\\topsep", "(builtin)"),
  ("\\totalheight", "(builtin)"),
  ("\\triangle", "(builtin)"),
  ("\\triangledown", "(builtin)"),
  ("\\triangleleft", "(builtin)"),
  ("\\trianglelefteq", "(builtin)"),
  ("\\triangleq", "(builtin)"),
  ("\\triangleright", "(builtin)"),
  ("\\trianglerighteq", "(builtin)"),
  ("\\ttfamily", "(builtin)"),
  ("\\twocolumn", "(builtin)"),
  ("\\twocolumn[", "(builtin)"),
  ("\\twoheadleftarrow", "(builtin)"),
  ("\\twoheadrightarrow", "(builtin)"),
  ("\\typein", "(builtin)"),
  ("\\typein[", "(builtin)"),
  ("\\typeout", "(builtin)"),
  ("\\u", "(builtin)"),
  ("\\ulcorner", "(builtin)"),
  ("\\unboldmath", "(builtin)"),
  ("\\underline", "(builtin)"),
  ("\\uparrow", "(builtin)"),
  ("\\updownarrow", "(builtin)"),
  ("\\upharpoonleft", "(builtin)"),
  ("\\upharpoonright", "(builtin)"),
  ("\\uplus", "(builtin)"),
  ("\\upshape", "(builtin)"),
  ("\\upsilon", "(builtin)"),
  ("\\upuparrows", "(builtin)"),
  ("\\urcorner", "(builtin)"),
  ("\\usebox", "(builtin)"),
  ("\\usecounter", "(builtin)"),
  ("\\usepackage", "(builtin)"),
  ("\\usepackage[", "(builtin)"),
  ("\\v", "(builtin)"),
  ("\\vDash", "(builtin)"),
  ("\\value", "(builtin)"),
  ("\\varepsilon", "(builtin)"),
  ("\\varkappa", "(builtin)"),
  ("\\varnothing", "(builtin)"),
  ("\\varphi", "(builtin)"),
  ("\\varpi", "(builtin)"),
  ("\\varpropto", "(builtin)"),
  ("\\varrho", "(builtin)"),
  ("\\varsigma", "(builtin)"),
  ("\\varsubsetneq", "(builtin)"),
  ("\\varsubsetneqq", "(builtin)"),
  ("\\varsupsetneq", "(builtin)"),
  ("\\varsupsetneqq", "(builtin)"),
  ("\\vartheta", "(builtin)"),
  ("\\vartriangle", "(builtin)"),
  ("\\vartriangleleft", "(builtin)"),
  ("\\vartriangleright", "(builtin)"),
  ("\\vdash", "(builtin)"),
  ("\\vdots", "(builtin)"),
  ("\\vec", "(builtin)"),
  ("\\vector(", "(builtin)"),
  ("\\vee", "(builtin)"),
  ("\\veebar", "(builtin)"),
  ("\\verb", "(builtin)"),
  ("\\verb*", "(builtin)"),
  ("\\vfill", "(builtin)"),
  ("\\vfootnote", "(builtin)"),
  ("\\vline", "(builtin)"),
  ("\\vspace", "(builtin)"),
  ("\\vspace*", "(builtin)"),
  ("\\wedge", "(builtin)"),
  ("\\whiledo", "(builtin)"),
  ("\\widehat", "(builtin)"),
  ("\\widetilde", "(builtin)"),
  ("\\width", "(builtin)"),
  ("\\wp", "(builtin)"),
  ("\\wr", "(builtin)"),
  ("\\xi", "(builtin)"),
  ("\\zeta", "(builtin)"),
  ("\\{", "(builtin)"),
  ("\\|", "(builtin)"),
  ("\\}", "(builtin)"),
  ("\\~", "(builtin)"),

  # Additions I've run across:
  ("\\ar", "(builtin)"),
  ("\\frm", "(builtin)"),
  ("\\ge", "(builtin)"),
  ("\\hrulefill", "(builtin)"),
  ("\\noalign", "(builtin)"),
  ("\\pair", "(builtin)"),
  ("\\pdfpageheight", "(builtin)"),
  ("\\pdfpagewidth", "(builtin)"),
  ("\\time", "(builtin)"),
  ("\\txt", "(builtin)"),
);

}