return $result;
}
+sub diff_line_class {
+ my ($line, $from, $to) = @_;
+
+ # ordinary diff
+ my $num_sign = 1;
+ # combined diff
+ if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
+ $num_sign = scalar @{$from->{'href'}};
+ }
+
+ my @diff_line_classifier = (
+ { regexp => qr/^\@\@{$num_sign} /, class => "chunk_header"},
+ { regexp => qr/^\\/, class => "incomplete" },
+ { regexp => qr/^ {$num_sign}/, class => "ctx" },
+ # classifier for context must come before classifier add/rem,
+ # or we would have to use more complicated regexp, for example
+ # qr/(?= {0,$m}\+)[+ ]{$num_sign}/, where $m = $num_sign - 1;
+ { regexp => qr/^[+ ]{$num_sign}/, class => "add" },
+ { regexp => qr/^[- ]{$num_sign}/, class => "rem" },
+ );
+ for my $clsfy (@diff_line_classifier) {
+ return $clsfy->{'class'}
+ if ($line =~ $clsfy->{'regexp'});
+ }
+
+ # fallback
+ return "";
+}
+
+# assumes that $from and $to are defined and correctly filled,
+# and that $line holds a line of chunk header for unified diff
+sub format_unidiff_chunk_header {
+ my ($line, $from, $to) = @_;
+
+ my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
+ $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
+
+ $from_lines = 0 unless defined $from_lines;
+ $to_lines = 0 unless defined $to_lines;
+
+ if ($from->{'href'}) {
+ $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
+ -class=>"list"}, $from_text);
+ }
+ if ($to->{'href'}) {
+ $to_text = $cgi->a({-href=>"$to->{'href'}#l$to_start",
+ -class=>"list"}, $to_text);
+ }
+ $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
+ "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
+ return $line;
+}
+
+# assumes that $from and $to are defined and correctly filled,
+# and that $line holds a line of chunk header for combined diff
+sub format_cc_diff_chunk_header {
+ my ($line, $from, $to) = @_;
+
+ my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
+ my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
+
+ @from_text = split(' ', $ranges);
+ for (my $i = 0; $i < @from_text; ++$i) {
+ ($from_start[$i], $from_nlines[$i]) =
+ (split(',', substr($from_text[$i], 1)), 0);
+ }
+
+ $to_text = pop @from_text;
+ $to_start = pop @from_start;
+ $to_nlines = pop @from_nlines;
+
+ $line = "<span class=\"chunk_info\">$prefix ";
+ for (my $i = 0; $i < @from_text; ++$i) {
+ if ($from->{'href'}[$i]) {
+ $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
+ -class=>"list"}, $from_text[$i]);
+ } else {
+ $line .= $from_text[$i];
+ }
+ $line .= " ";
+ }
+ if ($to->{'href'}) {
+ $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
+ -class=>"list"}, $to_text);
+ } else {
+ $line .= $to_text;
+ }
+ $line .= " $prefix</span>" .
+ "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
+ return $line;
+}
+
# format patch (diff) line (not to be used for diff headers)
sub format_diff_line {
my $line = shift;
my ($from, $to) = @_;
- my $diff_class = "";
- chomp $line;
+ my $diff_class = diff_line_class($line, $from, $to);
+ my $diff_classes = "diff";
+ $diff_classes .= " $diff_class" if ($diff_class);
- if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
- # combined diff
- my $prefix = substr($line, 0, scalar @{$from->{'href'}});
- if ($line =~ m/^\@{3}/) {
- $diff_class = " chunk_header";
- } elsif ($line =~ m/^\\/) {
- $diff_class = " incomplete";
- } elsif ($prefix =~ tr/+/+/) {
- $diff_class = " add";
- } elsif ($prefix =~ tr/-/-/) {
- $diff_class = " rem";
- }
- } else {
- # assume ordinary diff
- my $char = substr($line, 0, 1);
- if ($char eq '+') {
- $diff_class = " add";
- } elsif ($char eq '-') {
- $diff_class = " rem";
- } elsif ($char eq '@') {
- $diff_class = " chunk_header";
- } elsif ($char eq "\\") {
- $diff_class = " incomplete";
- }
- }
+ chomp $line;
$line = untabify($line);
- if ($from && $to && $line =~ m/^\@{2} /) {
- my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
- $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
- $from_lines = 0 unless defined $from_lines;
- $to_lines = 0 unless defined $to_lines;
+ if ($from && $to && $line =~ m/^\@{2} /) {
+ $line = format_unidiff_chunk_header($line, $from, $to);
+ return "<div class=\"$diff_classes\">$line</div>\n";
- if ($from->{'href'}) {
- $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
- -class=>"list"}, $from_text);
- }
- if ($to->{'href'}) {
- $to_text = $cgi->a({-href=>"$to->{'href'}#l$to_start",
- -class=>"list"}, $to_text);
- }
- $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
- "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
- return "<div class=\"diff$diff_class\">$line</div>\n";
} elsif ($from && $to && $line =~ m/^\@{3}/) {
- my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
- my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
+ $line = format_cc_diff_chunk_header($line, $from, $to);
+ return "<div class=\"$diff_classes\">$line</div>\n";
- @from_text = split(' ', $ranges);
- for (my $i = 0; $i < @from_text; ++$i) {
- ($from_start[$i], $from_nlines[$i]) =
- (split(',', substr($from_text[$i], 1)), 0);
- }
-
- $to_text = pop @from_text;
- $to_start = pop @from_start;
- $to_nlines = pop @from_nlines;
-
- $line = "<span class=\"chunk_info\">$prefix ";
- for (my $i = 0; $i < @from_text; ++$i) {
- if ($from->{'href'}[$i]) {
- $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
- -class=>"list"}, $from_text[$i]);
- } else {
- $line .= $from_text[$i];
- }
- $line .= " ";
- }
- if ($to->{'href'}) {
- $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
- -class=>"list"}, $to_text);
- } else {
- $line .= $to_text;
- }
- $line .= " $prefix</span>" .
- "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
- return "<div class=\"diff$diff_class\">$line</div>\n";
}
- return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
+ return "<div class=\"$diff_classes\">" . esc_html($line, -nbsp=>1) . "</div>\n";
}
# Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
Lady’s Gitweb / Gitweb / blobdiff