(language: string | undefined)
| 90 | |
| 91 | // Normalize language to a valid Shiki language |
| 92 | export function normalizeLanguage(language: string | undefined): ExtendedLanguage { |
| 93 | if (language === undefined) { |
| 94 | return "txt" |
| 95 | } |
| 96 | |
| 97 | // Convert to lowercase for consistent matching |
| 98 | const normalizedInput = language.toLowerCase() |
| 99 | |
| 100 | // If it's already a valid bundled language, return it |
| 101 | if (normalizedInput in bundledLanguages) { |
| 102 | return normalizedInput as BundledLanguage |
| 103 | } |
| 104 | |
| 105 | // Check if it's an alias |
| 106 | if (normalizedInput in languageAliases) { |
| 107 | return languageAliases[normalizedInput] |
| 108 | } |
| 109 | |
| 110 | // Warn about unrecognized language and default to txt (only once per language) |
| 111 | if (language !== "txt" && !warnedLanguages.has(language)) { |
| 112 | console.warn(`[Shiki] Unrecognized language '${language}', defaulting to txt.`) |
| 113 | warnedLanguages.add(language) |
| 114 | } |
| 115 | |
| 116 | return "txt" |
| 117 | } |
| 118 | |
| 119 | // Export function to check if a language is loaded |
| 120 | export const isLanguageLoaded = (language: string): boolean => { |
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