and tags.
func replaceOutsideCode(html, old, replacement string) string {
var result strings.Builder
i := 0
for i < len(html) {
// Check if we're entering a code or pre block
if i < len(html)-1 && html[i] == '<' {
lower := strings.ToLower(html[i:])
if strings.HasPrefix(lower, " 0 && isWordChar(html[i-1])
after := i+len(old) < len(html) && isWordChar(html[i+len(old)])
if !before && !after {
result.WriteString(replacement)
i += len(old)
continue
}
}
result.WriteByte(html[i])
i++
}
return result.String()
}
// processEmojis replaces :shortcode: patterns with Unicode emoji characters.
// It skips content inside and tags using replaceOutsideCode.
func processEmojis(html string) string {
// Find all shortcode matches and collect unique ones that have emoji mappings
matches := emojiRegex.FindAllString(html, -1)
seen := map[string]bool{}
for _, match := range matches {
if seen[match] {
continue
}
seen[match] = true
name := match[1 : len(match)-1]
if emoji, ok := emojiMap[name]; ok {
html = replaceOutsideCode(html, match, emoji)
}
}
return html
}
// processMermaid transforms mermaid code blocks from goldmark's rendered format
// into the format mermaid.js expects: ...content...
func processMermaid(html string) string {
return mermaidBlockRegex.ReplaceAllString(html, `$1
`)
}
func isWordChar(b byte) bool {
return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || (b >= '0' && b <= '9') || b == '_'
}