Markdown.pl: include yaml table lines for error msg lineno

The line number mentioned in any error message gets generated by
counting from the beginning of the non-yaml output.

Of course, the final output will include any yaml table if generated.

Adjust the line number in any error messages by the number of lines
of preceding yaml table that will be included in the output.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>

Markdown.pl

@@ -1153,6 +1153,7 @@ sub _SanitizeOpts {
     my $o = shift; # hashref
     ref($o) eq "HASH" or return;
 
+    $o->{firstline} = 0;
     $o->{keep_named_character_entities} = 0 unless
 	defined($o->{keep_named_character_entities}) && $o->{keep_named_character_entities} eq "1";
     $o->{xmlcheck} = looks_like_number($o->{xmlcheck}) && $o->{xmlcheck} == 0 ? 0 : 2;
@@ -1317,6 +1318,28 @@ sub Markdown {
     my $yaml;
     ($text, $yaml) = _PrepareInput($text, $opt{yamlmode});
     _ApplyYAMLOpts($yaml, \%opt) if ref($yaml) eq "HASH" && $opt{yamlmode} > 0;
+    my $yamltable = "";
+    if (ref($yaml) eq "HASH" && %$yaml && $opt{yamlmode} && $opt{yamlvis}) {
+	if ($opt{yamlvis} > 0 || _HasUnknownYAMLOptions($yaml)) {
+	    my ($hrows, $drows) = ("", "");
+	    foreach (sort(keys(%$yaml))) {
+		my $v = $yaml->{$_};
+		my $rspn = '';
+		if (defined($v)) {
+		    $v =~ s/&/&/g;
+		    $v =~ s/</&lt;/g;
+		    utf8::encode($v);
+		    $drows .= "<td>" . $v . "</td>\n";
+		} else {
+		    $rspn = " class=\"$opt{style_prefix}yaml-undef-value\" rowspan=\"2\" valign=\"top\"";
+		}
+		$hrows .= "<th$rspn>" . $_ . "</th>\n";
+	    }
+	    $yamltable = "<table class=\"$opt{style_prefix}yaml-table\" border=\"1\">\n" .
+		"<tr>\n$hrows</tr>\n<tr>\n$drows</tr>\n</table>\n";
+	    $opt{firstline} = scalar(@{[$yamltable =~ /\n/g]});
+	}
+    }
 
     # Clear the globals. If we don't clear these, you get conflicts
     # from other articles when generating a page which contains more than
@@ -1382,27 +1405,7 @@ sub Markdown {
 	}
 	${$_[0]}{yaml} = $yaml if ref($yaml) eq "HASH";
     }
-    my $yamltable = "";
-    if (ref($yaml) eq "HASH" && %$yaml && $opt{yamlmode} && $opt{yamlvis}) {
-	if ($opt{yamlvis} > 0 || _HasUnknownYAMLOptions($yaml)) {
-	    my ($hrows, $drows) = ("", "");
-	    foreach (sort(keys(%$yaml))) {
-		my $v = $yaml->{$_};
-		my $rspn = '';
-		if (defined($v)) {
-		    $v =~ s/&/&amp;/g;
-		    $v =~ s/</&lt;/g;
-		    utf8::encode($v);
-		    $drows .= "<td>" . $v . "</td>\n";
-		} else {
-		    $rspn = " class=\"$opt{style_prefix}yaml-undef-value\" rowspan=\"2\" valign=\"top\"";
-		}
-		$hrows .= "<th$rspn>" . $_ . "</th>\n";
-	    }
-	    $yamltable = "<table class=\"$opt{style_prefix}yaml-table\" border=\"1\">\n" .
-		"<tr>\n$hrows</tr>\n<tr>\n$drows</tr>\n</table>\n";
-	}
-    }
+
     # Eliminate known named character entities
     $opt{keep_named_character_entities} or do {
 	$yamltable = ConvertNamedCharacterEntities($yamltable);
@@ -3599,7 +3602,7 @@ sub _linecol {
 	my ($pos, $txt) = @_;
 	pos($txt) = 0;
 	my ($l, $p);
-	$l = 1;
+	$l = 1 + $opt{firstline};
 	++$l while ($p = pos($txt)), $txt =~ /\G[^\n]*\n/gc && pos($txt) <= $pos;
 	return "line $l col " . (1 + ($pos - $p));
 }