From b0afb8f5522ab96b54580dfe94ec045da0f758aa Mon Sep 17 00:00:00 2001 From: Richard Viney Date: Tue, 12 Nov 2024 11:49:30 +1300 Subject: Optimise string trimming on JavaScript --- src/gleam_stdlib.mjs | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'src/gleam_stdlib.mjs') diff --git a/src/gleam_stdlib.mjs b/src/gleam_stdlib.mjs index 46bc72a..06302bf 100644 --- a/src/gleam_stdlib.mjs +++ b/src/gleam_stdlib.mjs @@ -302,19 +302,22 @@ const unicode_whitespaces = [ "\u2029", // Paragraph separator ].join(""); -const left_trim_regex = new RegExp(`^([${unicode_whitespaces}]*)`, "g"); -const right_trim_regex = new RegExp(`([${unicode_whitespaces}]*)$`, "g"); +const trim_start_regex = new RegExp(`^[${unicode_whitespaces}]*`); +const trim_end_regex = new RegExp(`[${unicode_whitespaces}]*$`); +const trim_regex = new RegExp( + `^[${unicode_whitespaces}]*(.*?)[${unicode_whitespaces}]*$` +); export function trim(string) { - return trim_start(trim_end(string)); + return string.match(trim_regex)[1]; } export function trim_start(string) { - return string.replace(left_trim_regex, ""); + return string.replace(trim_start_regex, ""); } export function trim_end(string) { - return string.replace(right_trim_regex, ""); + return string.replace(trim_end_regex, ""); } export function bit_array_from_string(string) { -- cgit v1.2.3