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Let's try mozilla's fixedCharAt function

master
Caleb Fontenot 2023-04-30 18:51:08 +07:00
parent 69c62365ba
commit ec78f86ff7
1 changed files with 5 additions and 1 deletions
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6
commands/drawDesign.cjs
Unescape Escape View File

@ -210,6 +210,7 @@ function design4(input) {
}
return outputString;
}
const surrogatePairs = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
var charIterateState;
function charIterate(input) {
if (charIterateState == undefined) {
@ -218,6 +219,9 @@ function charIterate(input) {
} else {
if (charIterateState < (input.length - 1)) {
charIterateState++;
if (surrogatePairs.exec(input.charCodeAt(charIterateState)) !== null) {
charIterateState++;
}
} else {
charIterateState = 0;
}
@ -288,7 +292,7 @@ function design5(input) {
function fixedCharAt(str, idx) {
str = String(str);
const surrogatePairs = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
//const surrogatePairs = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
while (surrogatePairs.exec(str) !== null) {
const lastIdx = surrogatePairs.lastIndex;
if (lastIdx - 2 < idx) {