/**
* Wiki-link parsing and creation
*/
import type { WikiLink } from '../types/index.js';
// Regex to match [[wiki-links]] with optional display text
const WIKILINK_REGEX = /\[\[([^\]|]+)(?:\|([^\]]+))?\]\]/g;
/**
* Extract all wiki-links from content
*/
export function extractWikiLinks(content: string): WikiLink[] {
const links: WikiLink[] = [];
let match;
while ((match = WIKILINK_REGEX.exec(content)) !== null) {
const link: WikiLink = {
target: match[1]!.trim(),
raw: match[0],
};
// Only set display if it exists
const display = match[2]?.trim();
if (display) {
link.display = display;
}
links.push(link);
}
return links;
}
/**
* Create a wiki-link string
*/
export function createWikiLink(target: string, display?: string): string {
if (display && display !== target) {
return `[[${target}|${display}]]`;
}
return `[[${target}]]`;
}
/**
* Check if text contains a wiki-link to a specific target
*/
export function hasWikiLinkTo(content: string, target: string): boolean {
const links = extractWikiLinks(content);
const normalizedTarget = target.toLowerCase();
return links.some((link) => link.target.toLowerCase() === normalizedTarget);
}
/**
* Get unique wiki-link targets from content
*/
export function getUniqueTargets(content: string): string[] {
const links = extractWikiLinks(content);
const targets = new Set(links.map((link) => link.target));
return Array.from(targets);
}
/**
* Format a list of targets as related frontmatter entries
*/
export function formatRelatedLinks(targets: string[]): string[] {
return targets.map((target) => `[[${target}]]`);
}
/**
* Check if position in content is inside a code block or existing link
*/
export function isInsideCodeOrLink(
content: string,
position: number
): boolean {
// Check for code blocks (``` ... ```)
const codeBlockRegex = /```[\s\S]*?```/g;
let match;
while ((match = codeBlockRegex.exec(content)) !== null) {
if (position >= match.index && position < match.index + match[0].length) {
return true;
}
}
// Check for inline code (` ... `)
const inlineCodeRegex = /`[^`]+`/g;
while ((match = inlineCodeRegex.exec(content)) !== null) {
if (position >= match.index && position < match.index + match[0].length) {
return true;
}
}
// Check if inside existing wiki-link
const wikiLinkRegex = /\[\[[^\]]+\]\]/g;
while ((match = wikiLinkRegex.exec(content)) !== null) {
if (position >= match.index && position < match.index + match[0].length) {
return true;
}
}
return false;
}
