do_cmd_let(): Simple implementation to allow \let to be used to establish

synonyms for macros.  This supports:

	\let\newname = \oldname
	\let\newname\oldname

This is useful sometimes, and can at least avoid real errors at other times.
This commit is contained in:
Fred Drake 1998-05-15 04:28:37 +00:00
parent 532246ef55
commit e16f6798ae
1 changed files with 21 additions and 3 deletions

View File

@ -55,6 +55,24 @@ sub ArabictoRoman {
$D2[$c[2]] . $D1[$c[1]] . $D0[$c[0]];
}
# This is a fairly simple hack; it supports \let when it is used to create
# (or redefine) a macro to exactly be some other macro: \let\newname=\oldname.
# Many uses of \let aren't supported.
#
sub do_cmd_let{
local($_) = @_;
my $matched = 0;
s/\s*[\\]([a-zA-Z]+)\s*(=\s*)?[\\]([a-zA-Z]*)/$matched=1; ''/e;
if ($matched) {
my($new, $old) = ($1, $3);
eval "sub do_cmd_$new { do_cmd_$old" . '(@_); }';
print "\ndefining handler for \\$new using \\$old\n";
}
$_;
}
# words typeset in a special way (not in HTML though)
sub do_cmd_ABC{ 'ABC' . @_[0]; }
@ -84,9 +102,9 @@ sub do_cmd_authoraddress{
$_;
}
sub do_cmd_developer{ do_cmd_author(@_[0]); }
sub do_cmd_developers{ do_cmd_author(@_[0]); }
sub do_cmd_developersaddress{ do_cmd_authoraddress(@_[0]); }
#sub do_cmd_developer{ do_cmd_author(@_[0]); }
#sub do_cmd_developers{ do_cmd_author(@_[0]); }
#sub do_cmd_developersaddress{ do_cmd_authoraddress(@_[0]); }
sub do_cmd_hackscore{
local($_) = @_;