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/**
* @name string-collapse-leading-whitespace
* @fileoverview Collapse the leading and trailing whitespace of a string
* @version 5.1.0
* @author Roy Revelt, Codsen Ltd
* @license MIT
* {@link https://codsen.com/os/string-collapse-leading-whitespace/}
*/
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
var version$1 = "5.1.0";
var version = version$1;
function collWhitespace(str) {
var originallineBreakLimit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
var rawNbsp = "\xA0";
function reverse(s) {
return Array.from(s).reverse().join("");
}
function prep(whitespaceChunk, limit, trailing) {
var firstBreakChar = trailing ? "\n" : "\r";
var secondBreakChar = trailing ? "\r" : "\n";
if (!whitespaceChunk) {
return whitespaceChunk;
}
var crlfCount = 0;
var res = "";
for (var i = 0, len = whitespaceChunk.length; i < len; i++) {
if (whitespaceChunk[i] === firstBreakChar || whitespaceChunk[i] === secondBreakChar && whitespaceChunk[i - 1] !== firstBreakChar) {
crlfCount++;
}
if ("\r\n".includes(whitespaceChunk[i]) || whitespaceChunk[i] === rawNbsp) {
if (whitespaceChunk[i] === rawNbsp) {
res += whitespaceChunk[i];
} else if (whitespaceChunk[i] === firstBreakChar) {
if (crlfCount <= limit) {
res += whitespaceChunk[i];
if (whitespaceChunk[i + 1] === secondBreakChar) {
res += whitespaceChunk[i + 1];
i++;
}
}
} else if (whitespaceChunk[i] === secondBreakChar && (!whitespaceChunk[i - 1] || whitespaceChunk[i - 1] !== firstBreakChar) && crlfCount <= limit) {
res += whitespaceChunk[i];
}
} else {
if (!whitespaceChunk[i + 1] && !crlfCount) {
res += " ";
}
}
}
return res;
}
if (typeof str === "string" && str.length) {
var lineBreakLimit = 1;
if (typeof +originallineBreakLimit === "number" && Number.isInteger(+originallineBreakLimit) && +originallineBreakLimit >= 0) {
lineBreakLimit = +originallineBreakLimit;
}
var frontPart = "";
var endPart = "";
if (!str.trim()) {
frontPart = str;
} else if (!str[0].trim()) {
for (var i = 0, len = str.length; i < len; i++) {
if (str[i].trim()) {
frontPart = str.slice(0, i);
break;
}
}
}
if (str.trim() && (str.slice(-1).trim() === "" || str.slice(-1) === rawNbsp)) {
for (var _i = str.length; _i--;) {
if (str[_i].trim()) {
endPart = str.slice(_i + 1);
break;
}
}
}
return "".concat(prep(frontPart, lineBreakLimit, false)).concat(str.trim()).concat(reverse(prep(reverse(endPart), lineBreakLimit, true)));
}
return str;
}
exports.collWhitespace = collWhitespace;
exports.version = version;
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