sjs/vibetunnel
1
0
Fork 0
mirror of https://github.com/samsonjs/vibetunnel.git synced 2026-03-25 09:25:50 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Optimize TitleSequenceFilter by compiling regexes once as static properties

Browse source
This commit is contained in:
Mario Zechner 2025-07-02 05:06:24 +02:00 committed by Peter Steinberger
parent f322d746af
commit 43ef2d962d
1 changed files with 9 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
web/src/server/utils/ansi-title-filter.ts
View file

@ -9,6 +9,13 @@
export class TitleSequenceFilter {
private buffer = '';
// Compile regexes once as static properties for better performance
// biome-ignore lint/suspicious/noControlCharactersInRegex: ANSI escape sequences require control characters
private static readonly COMPLETE_TITLE_REGEX = /\x1b\][0-2];[^\x07\x1b]*(?:\x07|\x1b\\)/g;
// biome-ignore lint/suspicious/noControlCharactersInRegex: ANSI escape sequences require control characters
private static readonly PARTIAL_TITLE_REGEX =
/\x1b\][0-2];.*\x1b$|\x1b\][0-2];[^\x07]*$|\x1b(?:\](?:[0-2])?)?$/;
/**
* Filter terminal title sequences from the input data.
* Handles sequences that may be split across multiple chunks.
@ -22,8 +29,7 @@ export class TitleSequenceFilter {
// Remove all complete title sequences
// Matches: ESC ] 0/1/2 ; <title text> BEL or ESC ] 0/1/2 ; <title text> ESC \
// biome-ignore lint/suspicious/noControlCharactersInRegex: ANSI escape sequences require control characters
const filtered = this.buffer.replace(/\x1b\][0-2];[^\x07\x1b]*(?:\x07|\x1b\\)/g, '');
const filtered = this.buffer.replace(TitleSequenceFilter.COMPLETE_TITLE_REGEX, '');
// Check if we have a partial title sequence at the end
// This includes sequences that might be terminated by ESC \ where the ESC is at the end
@ -33,10 +39,7 @@ export class TitleSequenceFilter {
// - \x1b][0-2] at the end
// - \x1b][0-2]; followed by any text ending with \x1b (potential \x1b\\ terminator)
// - \x1b][0-2]; followed by any text without terminator
const partialMatch = filtered.match(
// biome-ignore lint/suspicious/noControlCharactersInRegex: ANSI escape sequences require control characters
/\x1b\][0-2];.*\x1b$|\x1b\][0-2];[^\x07]*$|\x1b(?:\](?:[0-2])?)?$/
);
const partialMatch = filtered.match(TitleSequenceFilter.PARTIAL_TITLE_REGEX);
if (partialMatch) {
// Save the partial sequence for the next chunk