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-rw-r--r--Master/tlpkg/tlperl/lib/meta_notation.pm11
1 files changed, 5 insertions, 6 deletions
diff --git a/Master/tlpkg/tlperl/lib/meta_notation.pm b/Master/tlpkg/tlperl/lib/meta_notation.pm
index 2f85cd30c55..eea85875c9f 100644
--- a/Master/tlpkg/tlperl/lib/meta_notation.pm
+++ b/Master/tlpkg/tlperl/lib/meta_notation.pm
@@ -4,7 +4,7 @@ use warnings;
# A tiny private library routine which is a helper to several Perl core
# modules, to allow a paradigm to be implemented in a single place. The name,
# contents, or even the existence of this file may be changed at any time and
-# are NOT to be used by anthing outside the Perl core.
+# are NOT to be used by anything outside the Perl core.
sub _meta_notation ($) {
@@ -22,10 +22,8 @@ sub _meta_notation ($) {
# On ASCII platforms, the upper-Latin1-range characters are converted to
# Meta notation, so that \xC1 becomes 'M-A', \xE2 becomes 'M-b', etc.
# This is how it always has worked, so is continued that way for backwards
- # compatibility. XXX Wrong, but the way it has always worked is that \x80
- # .. \x9F are converted to M- followed by a literal control char. This
- # probably has escaped attention due to the limited domains this code has
- # been applied to. ext/SDBM_File/dbu.c does this right.
+ # compatibility. The range \x80 .. \x9F becomes M-^@ .. M-^A, M-^B, ...
+ # M-^Z, M-^[, M-^\, M-^], M-^, M-^_
#
# On EBCDIC platforms, the upper-Latin1-range characters are converted
# into '\x{...}' Meta notation doesn't make sense on EBCDIC platforms
@@ -40,7 +38,8 @@ sub _meta_notation ($) {
sprintf("^%c",utf8::unicode_to_native(ord($1)^64))/xeg;
$string =~ s/\c?/^?/g;
if (ord("A") == 65) {
- $string =~ s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg;
+ $string =~ s/([\200-\237])/sprintf("M-^%c",(ord($1)&0177)^64)/eg;
+ $string =~ s/([\240-\377])/sprintf("M-%c" ,ord($1)&0177)/eg;
}
else {
no warnings 'experimental::regex_sets';