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-rw-r--r--Master/tlpkg/TeXLive/TLUtils.pm97
1 files changed, 94 insertions, 3 deletions
diff --git a/Master/tlpkg/TeXLive/TLUtils.pm b/Master/tlpkg/TeXLive/TLUtils.pm
index 3e63b4a2c08..3be5b0eb697 100644
--- a/Master/tlpkg/TeXLive/TLUtils.pm
+++ b/Master/tlpkg/TeXLive/TLUtils.pm
@@ -101,6 +101,13 @@ C<TeXLive::TLUtils> -- utilities used in TeX Live infrastructure
TeXLive::TLUtils::prepend_own_path();
TeXLive::TLUtils::repository_to_array($str);
+=head2 JSON
+
+ TeXLive::TLUtils::simple_hash_to_json($hashref);
+ TeXLive::TLUtils::scalar_to_json($hashref);
+ TeXLive::TLUtils::hash_to_json($hashref);
+ TeXLive::TLUtils::array_to_json($hashref);
+
=head1 DESCRIPTION
=cut
@@ -188,6 +195,7 @@ BEGIN {
&get_full_line
&sort_archs
&repository_to_array
+ &simple_hash_to_json
);
@EXPORT = qw(setup_programs download_file process_logging_options
tldie tlwarn info log debug ddebug dddebug debug_hash
@@ -4131,9 +4139,6 @@ sub prepend_own_path {
}
-=back
-=cut
-
sub repository_to_array {
my $r = shift;
my %r;
@@ -4159,6 +4164,92 @@ sub repository_to_array {
return %r;
}
+=item C<simple_hash_tpo_json($hashref)>
+
+Returns the JSON representation of C<$hashref>. Only simple key/value
+hashes are supported, and all entries are treated as strings.
+
+=cut
+
+sub simple_hash_to_json {
+ my $hr = shift;
+ return
+ "{" . join (",", map { "\"$_\":\"" . $hr->{$_} . "\"" } keys(%$hr)) . "}"
+}
+
+sub scalar_to_json {
+ my $val = shift;
+ my %esc = (
+ "\n" => '\n',
+ "\r" => '\r',
+ "\t" => '\t',
+ "\f" => '\f',
+ "\b" => '\b',
+ "\"" => '\"',
+ "\\" => '\\\\',
+ "\'" => '\\\'',
+ );
+ $val =~ s/([\x22\x5c\n\r\t\f\b])/$esc{$1}/g;
+ return($val);
+}
+
+sub hash_to_json {
+ my $hr = shift;
+ my $ret = "{";
+ my @keystr;
+ for my $k (keys(%$hr)) {
+ my $val = $hr->{$k};
+ if (!$val) {
+ push @keystr, "\"$k\":null";
+ } elsif (ref($val) eq "") {
+ push @keystr, "\"$k\":\"" . scalar_to_json($val) . "\"";
+ } elsif (ref($val) eq 'SCALAR') {
+ push @keystr, "\"$k\":\"" . scalar_to_json($$val) . "\"";
+ } elsif (ref($val) eq 'ARRAY') {
+ push @keystr, "\"$k\":" . array_to_json($val);
+ } elsif (ref($val) eq 'HASH') {
+ push @keystr, "\"$k\":" . hash_to_json($val);
+ } elsif (Scalar::Util::blessed($val)) {
+ if (ref($val) eq "JSON::PP::Boolean") {
+ push @keystr, "\"$k\":" . ($val == $JSON::true ? "true" : "false");
+ } else {
+ die "Unsupported blessed object!";
+ }
+ } else {
+ die("Unsupported reference in hash_to_json: " . ref($val));
+ }
+ }
+ $ret .= join(",",@keystr) . "}";
+ return($ret);
+}
+
+sub array_to_json {
+ my $hr = shift;
+ my $ret = "[";
+ my @keystr;
+ for my $val (@$hr) {
+ if (!$val) {
+ push @keystr, "null";
+ } elsif (ref($val) eq "") {
+ push @keystr, "\"" . scalar_to_json($val) . "\"";
+ } elsif (ref($val) eq 'SCALAR') {
+ push @keystr, "\"" . scalar_to_json($$val) . "\"";
+ } elsif (ref($val) eq 'ARRAY') {
+ push @keystr, array_to_json($val);
+ } elsif (ref($val) eq 'HASH') {
+ push @keystr, hash_to_json($val);
+ } else {
+ die("Unsupported reference in array_to_json");
+ }
+ }
+ $ret .= join(",",@keystr) . "]";
+ return($ret);
+}
+
+
+
+=back
+=cut
1;
__END__