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50 lines
1.7 KiB
50 lines
1.7 KiB
/** |
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* Utility functions for handling nostr addresses |
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*/ |
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/** |
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* Regex pattern for matching nostr addresses that don't already have a prefix |
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* Matches npub, nprofile, note, nevent, naddr, nrelay patterns |
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*/ |
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const NOSTR_ADDRESS_REGEX = /\b(npub|nprofile|note|nevent|naddr|nrelay)1[a-z0-9]+/gi |
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/** |
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* Prefixes nostr addresses with "nostr:" if they don't already have a prefix |
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* @param content - The content to process |
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* @returns The content with nostr addresses properly prefixed |
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*/ |
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export function prefixNostrAddresses(content: string): string { |
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return content.replace(NOSTR_ADDRESS_REGEX, (match, _p1, offset) => { |
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// Check if it already has a prefix (nostr: or other protocol) |
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// Look at the characters immediately before this specific match |
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const beforeMatch = content.substring(0, offset) |
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// Check if the match is already prefixed with "nostr:" |
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if (beforeMatch.endsWith('nostr:')) { |
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return match |
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} |
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// Check if the match is prefixed with @ (for @mention style) |
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if (beforeMatch.endsWith('@')) { |
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return match |
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} |
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// Check if the match is within a URL by looking for common URL patterns before it |
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// This includes http://, https://, and common URL characters like /, ?, # |
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const urlPattern = /(https?:\/\/|www\.|\/[^/]*|\?[^=]*=|#[^/]*\/)$/ |
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if (urlPattern.test(beforeMatch)) { |
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return match |
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} |
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// Also check if the match is followed by URL-like characters |
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const afterMatch = content.substring(offset + match.length) |
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const urlSuffixPattern = /^(\/|\.|\?|#|&|%|\s|$)/ |
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if (!urlSuffixPattern.test(afterMatch)) { |
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// If it's not followed by URL characters, it might be within a URL |
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return match |
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} |
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// Add nostr: prefix |
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return `nostr:${match}` |
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}) |
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}
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