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/* eslint no-constant-condition:0 */const findEndOfMath = function(delimiter, text, startIndex) {    // Adapted from    // https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx    let index = startIndex;    let braceLevel = 0;
    const delimLength = delimiter.length;
    while (index < text.length) {        const character = text[index];
        if (braceLevel <= 0 &&            text.slice(index, index + delimLength) === delimiter) {            return index;        } else if (character === "\\") {            index++;        } else if (character === "{") {            braceLevel++;        } else if (character === "}") {            braceLevel--;        }
        index++;    }
    return -1;};
const escapeRegex = function(string) {    return string.replace(/[-/\\^$*+?.()|[\]{}]/g, "\\$&");};
const amsRegex = /^\\begin{/;
const splitAtDelimiters = function(text, delimiters) {    let index;    const data = [];
    const regexLeft = new RegExp(        "(" + delimiters.map((x) => escapeRegex(x.left)).join("|") + ")"    );
    while (true) {        index = text.search(regexLeft);        if (index === -1) {            break;        }        if (index > 0) {            data.push({                type: "text",                data: text.slice(0, index),            });            text = text.slice(index); // now text starts with delimiter        }        // ... so this always succeeds:        const i = delimiters.findIndex((delim) => text.startsWith(delim.left));        index = findEndOfMath(delimiters[i].right, text, delimiters[i].left.length);        if (index === -1) {            break;        }        const rawData = text.slice(0, index + delimiters[i].right.length);        const math = amsRegex.test(rawData)            ? rawData            : text.slice(delimiters[i].left.length, index);        data.push({            type: "math",            data: math,            rawData,            display: delimiters[i].display,        });        text = text.slice(index + delimiters[i].right.length);    }
    if (text !== "") {        data.push({            type: "text",            data: text,        });    }
    return data;};
export default splitAtDelimiters;