regexp lookBehind bug?

[bluelovers]

• Version: v12.10.0
• Platform: 64-bit (Windows)
• Subsystem:

---

let txt = `「呀啊，居然能見到比自己還年輕的母親，時空穿梭真是恐怖呀」

「哈，哈……」

「呀啊，居然能見到比自己還年輕的母親，時空穿梭真是恐怖呀」

「哈，哈……」`;

console.dir(txt.replace(/(?<=^[「『][^\n]+[』」])\n\n(?=[「『][^\n]+[』」]$)/gm, '\n'));

in nodejs it can't handle when context in start of line

\n\n should is \n

in google chrome it work as expected

\n

[mscdex]

FWIW I get the same results in both node (master/v12.x/v10.x -- using console.log() instead to match output format) and in Chrome 76:

「呀啊，居然能見到比自己還年輕的母親，時空穿梭真是恐怖呀」

「哈，哈……」
「呀啊，居然能見到比自己還年輕的母親，時空穿梭真是恐怖呀」
「哈，哈……」

[bluelovers]

[benjamingr]

@bluelovers in general V8 features arrive at Node when we update V8. This is not a bug since it's a new feature and it will get there pretty soon when Node ships with a V8 version that supports it.

[targos]

Fixed in #29472