Regex for Obsidan links

up:: Obsidian

Order of matching

When applying transformations it is important to match in the order above:

1. Images (![[…]])
2. Link with alias ([[…|…]])
3. Link without alias ([[…]])

Otherwise, the matches will be applied incorrectly. Images for example, match links without an alias as well.

All three in one:

const str = "[[link]] [[alias|link]] ![[image]]";
 
const mdReg = /(!)?\[\[(?:(.+?)\|)?(.+?)\]\]/g
const matches = str.matchAll(mdReg);
 
for (const match of matches) {
 const isImage = !!match[0] // -> "!" or undefined
 const alt = match[1] // -> "alt" or undefined
 const link = match[2] // -> "link" or undefined
}