Attempt at header parsing

src/parser.v

@@ -3,6 +3,10 @@ fn replace(text string, start int, len int, repl string) string {
 }
 
 fn parse_header(line string) (int, string) {
+	if line.len == 0 {
+		return 0, line
+	}
+
 	mut lvl := 0
 	for line[lvl] == '!'[0] { // Jestem geniuszem programowania
 		lvl++
@@ -16,10 +20,20 @@ fn parse_header(line string) (int, string) {
 fn parse(lines []string) string {
 	mut output := '<p>'
 	for line in lines {
-		if idx := line.index('2') {
-			output += replace(line, idx, 1, 'foferk') + '<br>\n'
+		lvl, text := parse_header(line)
+		if lvl > 0 {
+			output += '<h' + lvl.str() + '>'
 		}
-		output += line + '<br>\n'
+
+		if idx := text.index('2') {
+			output += replace(text, idx, 1, 'foferk') + '<br>\n'
+		}
+
+		if lvl > 0 {
+			output += '</h' + lvl.str() + '>'
+		}
+
+		output += text + '<br>\n'
 	}
 	output += '</p>'
 	return output