Refactor main parts of HTML-formatting for diff chunk headers
(formatting means here adding links and syntax hightlighting) into
separate subroutines:
* format_unidiff_chunk_header for ordinary diff,
* format_cc_diff_chunk_header for combined diff
(more than one parent)
This makes format_diff_line() subroutine easier to follow.
Signed-off-by: Jakub Narebski <jnareb@xxxxxxxxx>
---
This patch is new in this version of side-by-side diff series.
After those changes format_diff_line() fits in one page (has less than
25 lines). Nice, isn't it?
gitweb/gitweb.perl | 114 ++++++++++++++++++++++++++++++---------------------
1 files changed, 67 insertions(+), 47 deletions(-)
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 914fd4c..95d278a 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -2254,6 +2254,69 @@ sub diff_line_class {
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;
@@ -2267,56 +2330,13 @@ sub format_diff_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->{'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>";
+ $line = format_unidiff_chunk_header($line, $from, $to);
return "<div class=\"$diff_classes\">$line</div>\n";
+
} elsif ($from && $to && $line =~ m/^\@{3}/) {
- my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
- my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
-
- @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>";
+ $line = format_cc_diff_chunk_header($line, $from, $to);
return "<div class=\"$diff_classes\">$line</div>\n";
+
}
return "<div class=\"$diff_classes\">" . esc_html($line, -nbsp=>1) . "</div>\n";
}
--
1.7.6
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