openNAMU__openNAMU/views/main_css/katex/contrib/auto-render.js

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/* 0 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__0__;

/***/ }),
/* 1 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);

// EXTERNAL MODULE: external "katex"
var external_katex_ = __webpack_require__(0);
var external_katex_default = /*#__PURE__*/__webpack_require__.n(external_katex_);

// CONCATENATED MODULE: ./contrib/auto-render/splitAtDelimiters.js
/* eslint no-constant-condition:0 */
var findEndOfMath = function findEndOfMath(delimiter, text, startIndex) {
    // Adapted from
    // https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx
    var index = startIndex;
    var braceLevel = 0;

    var delimLength = delimiter.length;

    while (index < text.length) {
        var 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;
};

var splitAtDelimiters = function splitAtDelimiters(startData, leftDelim, rightDelim, display) {
    var finalData = [];

    for (var i = 0; i < startData.length; i++) {
        if (startData[i].type === "text") {
            var text = startData[i].data;

            var lookingForLeft = true;
            var currIndex = 0;
            var nextIndex = void 0;

            nextIndex = text.indexOf(leftDelim);
            if (nextIndex !== -1) {
                currIndex = nextIndex;
                finalData.push({
                    type: "text",
                    data: text.slice(0, currIndex)
                });
                lookingForLeft = false;
            }

            while (true) {
                if (lookingForLeft) {
                    nextIndex = text.indexOf(leftDelim, currIndex);
                    if (nextIndex === -1) {
                        break;
                    }

                    finalData.push({
                        type: "text",
                        data: text.slice(currIndex, nextIndex)
                    });

                    currIndex = nextIndex;
                } else {
                    nextIndex = findEndOfMath(rightDelim, text, currIndex + leftDelim.length);
                    if (nextIndex === -1) {
                        break;
                    }

                    finalData.push({
                        type: "math",
                        data: text.slice(currIndex + leftDelim.length, nextIndex),
                        rawData: text.slice(currIndex, nextIndex + rightDelim.length),
                        display: display
                    });

                    currIndex = nextIndex + rightDelim.length;
                }

                lookingForLeft = !lookingForLeft;
            }

            finalData.push({
                type: "text",
                data: text.slice(currIndex)
            });
        } else {
            finalData.push(startData[i]);
        }
    }

    return finalData;
};

/* harmony default export */ var auto_render_splitAtDelimiters = (splitAtDelimiters);
// CONCATENATED MODULE: ./contrib/auto-render/auto-render.js
/* eslint no-console:0 */




var auto_render_splitWithDelimiters = function splitWithDelimiters(text, delimiters) {
    var data = [{ type: "text", data: text }];
    for (var i = 0; i < delimiters.length; i++) {
        var delimiter = delimiters[i];
        data = auto_render_splitAtDelimiters(data, delimiter.left, delimiter.right, delimiter.display || false);
    }
    return data;
};

/* Note: optionsCopy is mutated by this method. If it is ever exposed in the
 * API, we should copy it before mutating.
 */
var auto_render_renderMathInText = function renderMathInText(text, optionsCopy) {
    var data = auto_render_splitWithDelimiters(text, optionsCopy.delimiters);
    var fragment = document.createDocumentFragment();

    for (var i = 0; i < data.length; i++) {
        if (data[i].type === "text") {
            fragment.appendChild(document.createTextNode(data[i].data));
        } else {
            var span = document.createElement("span");
            var math = data[i].data;
            // Override any display mode defined in the settings with that
            // defined by the text itself
            optionsCopy.displayMode = data[i].display;
            try {
                external_katex_default.a.render(math, span, optionsCopy);
            } catch (e) {
                if (!(e instanceof external_katex_default.a.ParseError)) {
                    throw e;
                }
                optionsCopy.errorCallback("KaTeX auto-render: Failed to parse `" + data[i].data + "` with ", e);
                fragment.appendChild(document.createTextNode(data[i].rawData));
                continue;
            }
            fragment.appendChild(span);
        }
    }

    return fragment;
};

var renderElem = function renderElem(elem, optionsCopy) {
    for (var i = 0; i < elem.childNodes.length; i++) {
        var childNode = elem.childNodes[i];
        if (childNode.nodeType === 3) {
            // Text node
            var frag = auto_render_renderMathInText(childNode.textContent, optionsCopy);
            i += frag.childNodes.length - 1;
            elem.replaceChild(frag, childNode);
        } else if (childNode.nodeType === 1) {
            (function () {
                // Element node
                var className = ' ' + childNode.className + ' ';
                var shouldRender = optionsCopy.ignoredTags.indexOf(childNode.nodeName.toLowerCase()) === -1 && optionsCopy.ignoredClasses.every(function (x) {
                    return className.indexOf(' ' + x + ' ') === -1;
                });

                if (shouldRender) {
                    renderElem(childNode, optionsCopy);
                }
            })();
        }
        // Otherwise, it's something else, and ignore it.
    }
};

var renderMathInElement = function renderMathInElement(elem, options) {
    if (!elem) {
        throw new Error("No element provided to render");
    }

    var optionsCopy = {};

    // Object.assign(optionsCopy, option)
    for (var option in options) {
        if (options.hasOwnProperty(option)) {
            optionsCopy[option] = options[option];
        }
    }

    // default options
    optionsCopy.delimiters = optionsCopy.delimiters || [{ left: "$$", right: "$$", display: true }, { left: "\\(", right: "\\)", display: false },
    // LaTeX uses $…$, but it ruins the display of normal `$` in text:
    // {left: "$", right: "$", display: false},

    //  \[…\] must come last in this array. Otherwise, renderMathInElement
    //  will search for \[ before it searches for $$ or  \(
    // That makes it susceptible to finding a \\[0.3em] row delimiter and
    // treating it as if it were the start of a KaTeX math zone.
    { left: "\\[", right: "\\]", display: true }];
    optionsCopy.ignoredTags = optionsCopy.ignoredTags || ["script", "noscript", "style", "textarea", "pre", "code"];
    optionsCopy.ignoredClasses = optionsCopy.ignoredClasses || [];
    optionsCopy.errorCallback = optionsCopy.errorCallback || console.error;

    // Enable sharing of global macros defined via `\gdef` between different
    // math elements within a single call to `renderMathInElement`.
    optionsCopy.macros = optionsCopy.macros || {};

    renderElem(elem, optionsCopy);
};

/* harmony default export */ var auto_render = __webpack_exports__["default"] = (renderMathInElement);

/***/ })
/******/ ])["default"];
});