@panzer1119/bbcode-parser
Version:
BB code parser written in TypeScript.
160 lines • 7.31 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.BBCodeParser = exports.escapeHTML = exports.tagsToReplace = exports.startsWith = exports.endsWith = void 0;
//Indicates if the first string ends with the second str
var bbtag_1 = require("./bbtag");
var bbcodeparsetree_1 = require("./bbcodeparsetree");
function endsWith(str, endStr) {
if (str.length === 0) {
return false;
}
if (endStr.length > str.length) {
return false;
}
var inStrEnd = str.substr(str.length - endStr.length, endStr.length);
return endStr === inStrEnd;
}
exports.endsWith = endsWith;
//Indicates if the first string starts with the second string
function startsWith(str, startStr) {
if (str.length === 0) {
return false;
}
if (startStr.length > str.length) {
return false;
}
var inStrStart = str.substr(0, startStr.length);
return startStr === inStrStart;
}
exports.startsWith = startsWith;
exports.tagsToReplace = {
"&": "&",
"<": "<",
">": ">",
};
//Escapes the given html
function escapeHTML(html) {
return html.replace(/[&<>]/g, function (tag) {
return exports.tagsToReplace[tag] || tag;
});
}
exports.escapeHTML = escapeHTML;
var BBCodeParser = /** @class */ (function () {
function BBCodeParser(bbTags, options) {
if (options === void 0) { options = { escapeHTML: false }; }
this.bbTags = bbTags;
this.options = options;
}
//Parses the given string
BBCodeParser.prototype.parseString = function (content, stripTags, insertLineBreak, escapingHtml) {
if (stripTags === void 0) { stripTags = false; }
if (insertLineBreak === void 0) { insertLineBreak = true; }
if (escapingHtml === void 0) { escapingHtml = true; }
//Create the parse tree
var parseTree = bbcodeparsetree_1.BBCodeParseTree.buildTree(content, this.bbTags);
//If the tree is invalid, return the input as text
if (!parseTree || !parseTree.isValid()) {
return content;
}
//Convert it to HTML
return this.treeToHtml(parseTree.subTrees, insertLineBreak, escapingHtml, stripTags);
};
//Converts the given subtrees into html
BBCodeParser.prototype.treeToHtml = function (subTrees, insertLineBreak, escapingHtml, stripTags) {
var _this = this;
if (stripTags === void 0) { stripTags = false; }
var htmlString = "";
var suppressLineBreak = false;
subTrees.forEach(function (currentTree) {
if (currentTree.treeType === bbcodeparsetree_1.TreeType.Text) {
var textContent = currentTree.content;
if (escapingHtml) {
textContent = _this.options.escapeHTML ? escapeHTML(textContent) : textContent;
}
if (insertLineBreak && !suppressLineBreak) {
textContent = textContent.replace(/(\r\n|\n|\r)/gm, "<br>");
suppressLineBreak = false;
}
htmlString += textContent;
}
else {
//Get the tag
var bbTag = _this.bbTags[currentTree.content];
var content = _this.treeToHtml(currentTree.subTrees, bbTag.insertLineBreaks, escapingHtml, stripTags);
//Check if to strip the tags
if (!stripTags) {
htmlString += bbTag.markupGenerator(bbTag, content, currentTree.attributes);
}
else {
htmlString += content;
}
suppressLineBreak = bbTag.suppressLineBreaks;
}
});
return htmlString;
};
//Returns the default tags
BBCodeParser.defaultTags = function () {
var bbTags = {};
//Simple tags
bbTags["b"] = new bbtag_1.BBTag("b", true, false, false);
bbTags["i"] = new bbtag_1.BBTag("i", true, false, false);
bbTags["u"] = new bbtag_1.BBTag("u", true, false, false);
bbTags["h1"] = bbtag_1.BBTag.createSimpleTag("h1");
bbTags["h2"] = bbtag_1.BBTag.createSimpleTag("h2");
bbTags["h3"] = bbtag_1.BBTag.createSimpleTag("h3");
bbTags["h4"] = bbtag_1.BBTag.createSimpleTag("h4");
bbTags["h5"] = bbtag_1.BBTag.createSimpleTag("h5");
bbTags["hr"] = bbtag_1.BBTag.createSimpleTag("hr");
bbTags["table"] = bbtag_1.BBTag.createSimpleTag("table");
bbTags["tr"] = bbtag_1.BBTag.createSimpleTag("tr");
bbTags["th"] = bbtag_1.BBTag.createSimpleTag("th");
bbTags["td"] = bbtag_1.BBTag.createSimpleTag("td");
bbTags["spoiler"] = new bbtag_1.BBTag("spoiler", true, false, false, function (tag, content, attributes) {
return "<details><summary>" + (attributes["spoiler"] || "Spoiler") + "</summary>" + content + "</details>";
});
bbTags["noparse"] = new bbtag_1.BBTag("noparse", true, false, true);
bbTags["strike"] = bbtag_1.BBTag.createSimpleHTMLTag("strike", "s");
bbTags["list"] = bbtag_1.BBTag.createSimpleHTMLTag("olist", "ul");
bbTags["olist"] = bbtag_1.BBTag.createSimpleHTMLTag("olist", "ol");
bbTags["*"] = bbtag_1.BBTag.createSimpleHTMLTag("*", "li");
bbTags["text"] = new bbtag_1.BBTag("text", true, false, true, function (tag, content) { return content; });
bbTags["img"] = new bbtag_1.BBTag("img", true, false, false, function (tag, content) { return "<img src=\"" + content + "\" alt=\"" + content + "\"/>"; });
bbTags["quote"] = new bbtag_1.BBTag("quote", true, false, false, function (tag, content, attributes) {
var address = attributes["quote"] ? "<address>" + attributes["quote"] + "</address>" : "";
return "<blockquote>" + address + content + "</blockquote>";
});
bbTags["url"] = new bbtag_1.BBTag("url", true, false, false, function (tag, content, attributes) {
var link = content;
if (attributes["url"]) {
link = escapeHTML(attributes["url"]);
}
if (!startsWith(link, "http://") && !startsWith(link, "https://")) {
link = "http://" + link;
}
return '<a href="' + link + '" target="_blank">' + content + "</a>";
});
bbTags["code"] = new bbtag_1.BBTag("code", true, false, true, function (tag, content, attributes) {
var lang = attributes["lang"];
if (lang) {
return '<code class="' + escapeHTML(lang) + '">' + content + "</code>";
}
else {
return "<code>" + content + "</code>";
}
});
return bbTags;
};
BBCodeParser.escapeHTML = function (content) {
return escapeHTML(content);
};
BBCodeParser.startsWith = function (str, startStr) {
return startsWith(str, startStr);
};
BBCodeParser.endsWith = function (str, endStr) {
return endsWith(str, endStr);
};
return BBCodeParser;
}());
exports.BBCodeParser = BBCodeParser;
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