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Let's try mozilla's fixedCharAt function

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Chloe Fontenot 🏳️‍⚧️ 2023-04-30 18:33:24 -05:00
parent 7dff6e190b
commit 0e923aa4b4
1 changed files with 35 additions and 2 deletions
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37
commands/drawDesign.cjs
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@ -262,14 +262,14 @@ function design5(input) {
if (dist > radius - 1 && dist < radius + 1) { //&& dist > radius - 1
lineHasInput = true;
outputLine += "​" + input.charCodeAt(charIterate(input)); //zero-width space
outputLine += "​" + input.fixedCharAt(charIterate(input)); //zero-width space
} else {
outputLine += " ";
}
}
} else {
lineHasInput = true;
outputLine += input.charCodeAt(charIterate(input)) + space + input + space + spaceOffset + input.charCodeAt(charIterate(input));
outputLine += input.fixedCharAt(charIterate(input)) + space + input + space + spaceOffset + input.fixedCharAt(charIterate(input));
}
//console.log(i, j, outputLine);
@ -280,5 +280,38 @@ function design5(input) {
}
return outputString;
}
// Code from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charAt
function fixedCharAt(str, idx) {
str = String(str);
const surrogatePairs = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
while (surrogatePairs.exec(str) !== null) {
const lastIdx = surrogatePairs.lastIndex;
if (lastIdx - 2 < idx) {
idx++;
} else {
break;
}
}
if (idx >= str.length || idx < 0) {
return "";
}
let ret = str.charAt(idx);
if (
/[\uD800-\uDBFF]/.test(ret) &&
/[\uDC00-\uDFFF]/.test(str.charAt(idx + 1))
) {
// Go one further, since one of the "characters" is part of a surrogate pair
ret += str.charAt(idx + 1);
}
return ret;
}
//console.log(design4("super long test string super long test string"));
//"super long test string super long test string"