2064 lines
72 KiB
JavaScript
2064 lines
72 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const ed5 = require("xmlchars/xml/1.0/ed5");
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const ed2 = require("xmlchars/xml/1.1/ed2");
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const NSed3 = require("xmlchars/xmlns/1.0/ed3");
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var isS = ed5.isS;
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var isChar10 = ed5.isChar;
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var isNameStartChar = ed5.isNameStartChar;
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var isNameChar = ed5.isNameChar;
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var S_LIST = ed5.S_LIST;
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var NAME_RE = ed5.NAME_RE;
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var isChar11 = ed2.isChar;
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var isNCNameStartChar = NSed3.isNCNameStartChar;
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var isNCNameChar = NSed3.isNCNameChar;
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var NC_NAME_RE = NSed3.NC_NAME_RE;
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const XML_NAMESPACE = "http://www.w3.org/XML/1998/namespace";
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const XMLNS_NAMESPACE = "http://www.w3.org/2000/xmlns/";
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const rootNS = {
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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__proto__: null,
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xml: XML_NAMESPACE,
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xmlns: XMLNS_NAMESPACE,
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};
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const XML_ENTITIES = {
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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__proto__: null,
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amp: "&",
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gt: ">",
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lt: "<",
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quot: "\"",
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apos: "'",
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};
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// EOC: end-of-chunk
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const EOC = -1;
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const NL_LIKE = -2;
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const S_BEGIN = 0; // Initial state.
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const S_BEGIN_WHITESPACE = 1; // leading whitespace
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const S_DOCTYPE = 2; // <!DOCTYPE
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const S_DOCTYPE_QUOTE = 3; // <!DOCTYPE "//blah
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const S_DTD = 4; // <!DOCTYPE "//blah" [ ...
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const S_DTD_QUOTED = 5; // <!DOCTYPE "//blah" [ "foo
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const S_DTD_OPEN_WAKA = 6;
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const S_DTD_OPEN_WAKA_BANG = 7;
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const S_DTD_COMMENT = 8; // <!--
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const S_DTD_COMMENT_ENDING = 9; // <!-- blah -
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const S_DTD_COMMENT_ENDED = 10; // <!-- blah --
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const S_DTD_PI = 11; // <?
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const S_DTD_PI_ENDING = 12; // <?hi "there" ?
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const S_TEXT = 13; // general stuff
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const S_ENTITY = 14; // & and such
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const S_OPEN_WAKA = 15; // <
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const S_OPEN_WAKA_BANG = 16; // <!...
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const S_COMMENT = 17; // <!--
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const S_COMMENT_ENDING = 18; // <!-- blah -
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const S_COMMENT_ENDED = 19; // <!-- blah --
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const S_CDATA = 20; // <![CDATA[ something
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const S_CDATA_ENDING = 21; // ]
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const S_CDATA_ENDING_2 = 22; // ]]
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const S_PI_FIRST_CHAR = 23; // <?hi, first char
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const S_PI_REST = 24; // <?hi, rest of the name
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const S_PI_BODY = 25; // <?hi there
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const S_PI_ENDING = 26; // <?hi "there" ?
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const S_XML_DECL_NAME_START = 27; // <?xml
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const S_XML_DECL_NAME = 28; // <?xml foo
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const S_XML_DECL_EQ = 29; // <?xml foo=
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const S_XML_DECL_VALUE_START = 30; // <?xml foo=
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const S_XML_DECL_VALUE = 31; // <?xml foo="bar"
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const S_XML_DECL_SEPARATOR = 32; // <?xml foo="bar"
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const S_XML_DECL_ENDING = 33; // <?xml ... ?
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const S_OPEN_TAG = 34; // <strong
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const S_OPEN_TAG_SLASH = 35; // <strong /
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const S_ATTRIB = 36; // <a
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const S_ATTRIB_NAME = 37; // <a foo
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const S_ATTRIB_NAME_SAW_WHITE = 38; // <a foo _
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const S_ATTRIB_VALUE = 39; // <a foo=
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const S_ATTRIB_VALUE_QUOTED = 40; // <a foo="bar
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const S_ATTRIB_VALUE_CLOSED = 41; // <a foo="bar"
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const S_ATTRIB_VALUE_UNQUOTED = 42; // <a foo=bar
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const S_CLOSE_TAG = 43; // </a
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const S_CLOSE_TAG_SAW_WHITE = 44; // </a >
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const TAB = 9;
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const NL = 0xA;
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const CR = 0xD;
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const SPACE = 0x20;
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const BANG = 0x21;
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const DQUOTE = 0x22;
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const AMP = 0x26;
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const SQUOTE = 0x27;
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const MINUS = 0x2D;
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const FORWARD_SLASH = 0x2F;
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const SEMICOLON = 0x3B;
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const LESS = 0x3C;
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const EQUAL = 0x3D;
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const GREATER = 0x3E;
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const QUESTION = 0x3F;
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const OPEN_BRACKET = 0x5B;
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const CLOSE_BRACKET = 0x5D;
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const NEL = 0x85;
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const LS = 0x2028; // Line Separator
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const isQuote = (c) => c === DQUOTE || c === SQUOTE;
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const QUOTES = [DQUOTE, SQUOTE];
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const DOCTYPE_TERMINATOR = [...QUOTES, OPEN_BRACKET, GREATER];
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const DTD_TERMINATOR = [...QUOTES, LESS, CLOSE_BRACKET];
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const XML_DECL_NAME_TERMINATOR = [EQUAL, QUESTION, ...S_LIST];
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const ATTRIB_VALUE_UNQUOTED_TERMINATOR = [...S_LIST, GREATER, AMP, LESS];
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function nsPairCheck(parser, prefix, uri) {
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switch (prefix) {
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case "xml":
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if (uri !== XML_NAMESPACE) {
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parser.fail(`xml prefix must be bound to ${XML_NAMESPACE}.`);
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}
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break;
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case "xmlns":
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if (uri !== XMLNS_NAMESPACE) {
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parser.fail(`xmlns prefix must be bound to ${XMLNS_NAMESPACE}.`);
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}
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break;
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default:
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}
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switch (uri) {
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case XMLNS_NAMESPACE:
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parser.fail(prefix === "" ?
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`the default namespace may not be set to ${uri}.` :
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`may not assign a prefix (even "xmlns") to the URI \
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${XMLNS_NAMESPACE}.`);
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break;
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case XML_NAMESPACE:
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switch (prefix) {
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case "xml":
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// Assinging the XML namespace to "xml" is fine.
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break;
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case "":
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parser.fail(`the default namespace may not be set to ${uri}.`);
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break;
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default:
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parser.fail("may not assign the xml namespace to another prefix.");
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}
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break;
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default:
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}
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}
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function nsMappingCheck(parser, mapping) {
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for (const local of Object.keys(mapping)) {
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nsPairCheck(parser, local, mapping[local]);
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}
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}
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const isNCName = (name) => NC_NAME_RE.test(name);
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const isName = (name) => NAME_RE.test(name);
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const FORBIDDEN_START = 0;
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const FORBIDDEN_BRACKET = 1;
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const FORBIDDEN_BRACKET_BRACKET = 2;
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/**
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* The list of supported events.
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*/
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exports.EVENTS = [
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"xmldecl",
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"text",
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"processinginstruction",
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"doctype",
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"comment",
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"opentagstart",
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"attribute",
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"opentag",
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"closetag",
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"cdata",
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"error",
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"end",
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"ready",
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];
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const EVENT_NAME_TO_HANDLER_NAME = {
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xmldecl: "xmldeclHandler",
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text: "textHandler",
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processinginstruction: "piHandler",
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doctype: "doctypeHandler",
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comment: "commentHandler",
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opentagstart: "openTagStartHandler",
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attribute: "attributeHandler",
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opentag: "openTagHandler",
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closetag: "closeTagHandler",
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cdata: "cdataHandler",
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error: "errorHandler",
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end: "endHandler",
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ready: "readyHandler",
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};
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class SaxesParser {
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/**
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* @param opt The parser options.
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*/
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constructor(opt) {
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this.opt = opt !== null && opt !== void 0 ? opt : {};
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this.fragmentOpt = !!this.opt.fragment;
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const xmlnsOpt = this.xmlnsOpt = !!this.opt.xmlns;
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this.trackPosition = this.opt.position !== false;
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this.fileName = this.opt.fileName;
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if (xmlnsOpt) {
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// This is the function we use to perform name checks on PIs and entities.
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// When namespaces are used, colons are not allowed in PI target names or
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// entity names. So the check depends on whether namespaces are used. See:
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//
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// https://www.w3.org/XML/xml-names-19990114-errata.html
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// NE08
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//
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this.nameStartCheck = isNCNameStartChar;
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this.nameCheck = isNCNameChar;
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this.isName = isNCName;
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// eslint-disable-next-line @typescript-eslint/unbound-method
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this.processAttribs = this.processAttribsNS;
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// eslint-disable-next-line @typescript-eslint/unbound-method
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this.pushAttrib = this.pushAttribNS;
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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this.ns = Object.assign({ __proto__: null }, rootNS);
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const additional = this.opt.additionalNamespaces;
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if (additional != null) {
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nsMappingCheck(this, additional);
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Object.assign(this.ns, additional);
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}
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}
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else {
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this.nameStartCheck = isNameStartChar;
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this.nameCheck = isNameChar;
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this.isName = isName;
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// eslint-disable-next-line @typescript-eslint/unbound-method
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this.processAttribs = this.processAttribsPlain;
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// eslint-disable-next-line @typescript-eslint/unbound-method
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this.pushAttrib = this.pushAttribPlain;
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}
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//
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// The order of the members in this table needs to correspond to the state
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// numbers given to the states that correspond to the methods being recorded
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// here.
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//
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this.stateTable = [
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/* eslint-disable @typescript-eslint/unbound-method */
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this.sBegin,
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this.sBeginWhitespace,
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this.sDoctype,
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this.sDoctypeQuote,
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this.sDTD,
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this.sDTDQuoted,
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this.sDTDOpenWaka,
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this.sDTDOpenWakaBang,
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this.sDTDComment,
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this.sDTDCommentEnding,
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this.sDTDCommentEnded,
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this.sDTDPI,
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this.sDTDPIEnding,
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this.sText,
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this.sEntity,
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this.sOpenWaka,
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this.sOpenWakaBang,
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this.sComment,
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this.sCommentEnding,
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this.sCommentEnded,
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this.sCData,
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this.sCDataEnding,
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this.sCDataEnding2,
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this.sPIFirstChar,
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this.sPIRest,
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this.sPIBody,
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this.sPIEnding,
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this.sXMLDeclNameStart,
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this.sXMLDeclName,
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this.sXMLDeclEq,
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this.sXMLDeclValueStart,
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this.sXMLDeclValue,
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this.sXMLDeclSeparator,
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this.sXMLDeclEnding,
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this.sOpenTag,
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this.sOpenTagSlash,
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this.sAttrib,
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this.sAttribName,
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this.sAttribNameSawWhite,
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this.sAttribValue,
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this.sAttribValueQuoted,
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this.sAttribValueClosed,
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this.sAttribValueUnquoted,
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this.sCloseTag,
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this.sCloseTagSawWhite,
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];
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this._init();
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}
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/**
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* Indicates whether or not the parser is closed. If ``true``, wait for
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* the ``ready`` event to write again.
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*/
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get closed() {
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return this._closed;
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}
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_init() {
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var _a;
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this.openWakaBang = "";
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this.text = "";
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this.name = "";
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this.piTarget = "";
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this.entity = "";
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this.q = null;
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this.tags = [];
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this.tag = null;
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this.topNS = null;
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this.chunk = "";
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this.chunkPosition = 0;
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this.i = 0;
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this.prevI = 0;
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this.carriedFromPrevious = undefined;
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this.forbiddenState = FORBIDDEN_START;
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this.attribList = [];
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// The logic is organized so as to minimize the need to check
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// this.opt.fragment while parsing.
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const { fragmentOpt } = this;
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this.state = fragmentOpt ? S_TEXT : S_BEGIN;
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// We want these to be all true if we are dealing with a fragment.
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this.reportedTextBeforeRoot = this.reportedTextAfterRoot = this.closedRoot =
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this.sawRoot = fragmentOpt;
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// An XML declaration is intially possible only when parsing whole
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// documents.
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this.xmlDeclPossible = !fragmentOpt;
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this.xmlDeclExpects = ["version"];
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this.entityReturnState = undefined;
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let { defaultXMLVersion } = this.opt;
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if (defaultXMLVersion === undefined) {
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if (this.opt.forceXMLVersion === true) {
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throw new Error("forceXMLVersion set but defaultXMLVersion is not set");
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}
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defaultXMLVersion = "1.0";
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}
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this.setXMLVersion(defaultXMLVersion);
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this.positionAtNewLine = 0;
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this.doctype = false;
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this._closed = false;
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this.xmlDecl = {
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version: undefined,
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encoding: undefined,
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standalone: undefined,
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};
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this.line = 1;
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this.column = 0;
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this.ENTITIES = Object.create(XML_ENTITIES);
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// eslint-disable-next-line no-unused-expressions
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(_a = this.readyHandler) === null || _a === void 0 ? void 0 : _a.call(this);
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}
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/**
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* The stream position the parser is currently looking at. This field is
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* zero-based.
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*
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* This field is not based on counting Unicode characters but is to be
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* interpreted as a plain index into a JavaScript string.
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*/
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get position() {
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return this.chunkPosition + this.i;
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}
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/**
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* The column number of the next character to be read by the parser. *
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* This field is zero-based. (The first column in a line is 0.)
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*
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* This field reports the index at which the next character would be in the
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* line if the line were represented as a JavaScript string. Note that this
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* *can* be different to a count based on the number of *Unicode characters*
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* due to how JavaScript handles astral plane characters.
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*
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* See [[column]] for a number that corresponds to a count of Unicode
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* characters.
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*/
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get columnIndex() {
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return this.position - this.positionAtNewLine;
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}
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/**
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* Set an event listener on an event. The parser supports one handler per
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* event type. If you try to set an event handler over an existing handler,
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* the old handler is silently overwritten.
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*
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* @param name The event to listen to.
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*
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* @param handler The handler to set.
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*/
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on(name, handler) {
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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this[EVENT_NAME_TO_HANDLER_NAME[name]] = handler;
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}
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/**
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* Unset an event handler.
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*
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* @parma name The event to stop listening to.
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*/
|
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off(name) {
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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this[EVENT_NAME_TO_HANDLER_NAME[name]] = undefined;
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}
|
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/**
|
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* Make an error object. The error object will have a message that contains
|
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* the ``fileName`` option passed at the creation of the parser. If position
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* tracking was turned on, it will also have line and column number
|
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* information.
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*
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* @param message The message describing the error to report.
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*
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* @returns An error object with a properly formatted message.
|
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*/
|
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makeError(message) {
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var _a;
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let msg = (_a = this.fileName) !== null && _a !== void 0 ? _a : "";
|
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if (this.trackPosition) {
|
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if (msg.length > 0) {
|
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msg += ":";
|
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}
|
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msg += `${this.line}:${this.column}`;
|
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}
|
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if (msg.length > 0) {
|
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msg += ": ";
|
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}
|
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return new Error(msg + message);
|
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}
|
|
/**
|
|
* Report a parsing error. This method is made public so that client code may
|
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* check for issues that are outside the scope of this project and can report
|
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* errors.
|
|
*
|
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* @param message The error to report.
|
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*
|
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* @returns this
|
|
*/
|
|
fail(message) {
|
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const err = this.makeError(message);
|
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const handler = this.errorHandler;
|
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if (handler === undefined) {
|
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throw err;
|
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}
|
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else {
|
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handler(err);
|
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}
|
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return this;
|
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}
|
|
/**
|
|
* Write a XML data to the parser.
|
|
*
|
|
* @param chunk The XML data to write.
|
|
*
|
|
* @returns this
|
|
*/
|
|
write(chunk) {
|
|
if (this.closed) {
|
|
return this.fail("cannot write after close; assign an onready handler.");
|
|
}
|
|
let end = false;
|
|
if (chunk === null) {
|
|
// We cannot return immediately because carriedFromPrevious may need
|
|
// processing.
|
|
end = true;
|
|
chunk = "";
|
|
}
|
|
else if (typeof chunk === "object") {
|
|
chunk = chunk.toString();
|
|
}
|
|
// We checked if performing a pre-decomposition of the string into an array
|
|
// of single complete characters (``Array.from(chunk)``) would be faster
|
|
// than the current repeated calls to ``charCodeAt``. As of August 2018, it
|
|
// isn't. (There may be Node-specific code that would perform faster than
|
|
// ``Array.from`` but don't want to be dependent on Node.)
|
|
if (this.carriedFromPrevious !== undefined) {
|
|
// The previous chunk had char we must carry over.
|
|
chunk = `${this.carriedFromPrevious}${chunk}`;
|
|
this.carriedFromPrevious = undefined;
|
|
}
|
|
let limit = chunk.length;
|
|
const lastCode = chunk.charCodeAt(limit - 1);
|
|
if (!end &&
|
|
// A trailing CR or surrogate must be carried over to the next
|
|
// chunk.
|
|
(lastCode === CR || (lastCode >= 0xD800 && lastCode <= 0xDBFF))) {
|
|
// The chunk ends with a character that must be carried over. We cannot
|
|
// know how to handle it until we get the next chunk or the end of the
|
|
// stream. So save it for later.
|
|
this.carriedFromPrevious = chunk[limit - 1];
|
|
limit--;
|
|
chunk = chunk.slice(0, limit);
|
|
}
|
|
const { stateTable } = this;
|
|
this.chunk = chunk;
|
|
this.i = 0;
|
|
while (this.i < limit) {
|
|
// eslint-disable-next-line @typescript-eslint/no-explicit-any
|
|
stateTable[this.state].call(this);
|
|
}
|
|
this.chunkPosition += limit;
|
|
return end ? this.end() : this;
|
|
}
|
|
/**
|
|
* Close the current stream. Perform final well-formedness checks and reset
|
|
* the parser tstate.
|
|
*
|
|
* @returns this
|
|
*/
|
|
close() {
|
|
return this.write(null);
|
|
}
|
|
/**
|
|
* Get a single code point out of the current chunk. This updates the current
|
|
* position if we do position tracking.
|
|
*
|
|
* This is the algorithm to use for XML 1.0.
|
|
*
|
|
* @returns The character read.
|
|
*/
|
|
getCode10() {
|
|
const { chunk, i } = this;
|
|
this.prevI = i;
|
|
// Yes, we do this instead of doing this.i++. Doing it this way, we do not
|
|
// read this.i again, which is a bit faster.
|
|
this.i = i + 1;
|
|
if (i >= chunk.length) {
|
|
return EOC;
|
|
}
|
|
// Using charCodeAt and handling the surrogates ourselves is faster
|
|
// than using codePointAt.
|
|
const code = chunk.charCodeAt(i);
|
|
this.column++;
|
|
if (code < 0xD800) {
|
|
if (code >= SPACE || code === TAB) {
|
|
return code;
|
|
}
|
|
switch (code) {
|
|
case NL:
|
|
this.line++;
|
|
this.column = 0;
|
|
this.positionAtNewLine = this.position;
|
|
return NL;
|
|
case CR:
|
|
// We may get NaN if we read past the end of the chunk, which is fine.
|
|
if (chunk.charCodeAt(i + 1) === NL) {
|
|
// A \r\n sequence is converted to \n so we have to skip over the
|
|
// next character. We already know it has a size of 1 so ++ is fine
|
|
// here.
|
|
this.i = i + 2;
|
|
}
|
|
// Otherwise, a \r is just converted to \n, so we don't have to skip
|
|
// ahead.
|
|
// In either case, \r becomes \n.
|
|
this.line++;
|
|
this.column = 0;
|
|
this.positionAtNewLine = this.position;
|
|
return NL_LIKE;
|
|
default:
|
|
// If we get here, then code < SPACE and it is not NL CR or TAB.
|
|
this.fail("disallowed character.");
|
|
return code;
|
|
}
|
|
}
|
|
if (code > 0xDBFF) {
|
|
// This is a specialized version of isChar10 that takes into account
|
|
// that in this context code > 0xDBFF and code <= 0xFFFF. So it does not
|
|
// test cases that don't need testing.
|
|
if (!(code >= 0xE000 && code <= 0xFFFD)) {
|
|
this.fail("disallowed character.");
|
|
}
|
|
return code;
|
|
}
|
|
const final = 0x10000 + ((code - 0xD800) * 0x400) +
|
|
(chunk.charCodeAt(i + 1) - 0xDC00);
|
|
this.i = i + 2;
|
|
// This is a specialized version of isChar10 that takes into account that in
|
|
// this context necessarily final >= 0x10000.
|
|
if (final > 0x10FFFF) {
|
|
this.fail("disallowed character.");
|
|
}
|
|
return final;
|
|
}
|
|
/**
|
|
* Get a single code point out of the current chunk. This updates the current
|
|
* position if we do position tracking.
|
|
*
|
|
* This is the algorithm to use for XML 1.1.
|
|
*
|
|
* @returns {number} The character read.
|
|
*/
|
|
getCode11() {
|
|
const { chunk, i } = this;
|
|
this.prevI = i;
|
|
// Yes, we do this instead of doing this.i++. Doing it this way, we do not
|
|
// read this.i again, which is a bit faster.
|
|
this.i = i + 1;
|
|
if (i >= chunk.length) {
|
|
return EOC;
|
|
}
|
|
// Using charCodeAt and handling the surrogates ourselves is faster
|
|
// than using codePointAt.
|
|
const code = chunk.charCodeAt(i);
|
|
this.column++;
|
|
if (code < 0xD800) {
|
|
if ((code > 0x1F && code < 0x7F) || (code > 0x9F && code !== LS) ||
|
|
code === TAB) {
|
|
return code;
|
|
}
|
|
switch (code) {
|
|
case NL: // 0xA
|
|
this.line++;
|
|
this.column = 0;
|
|
this.positionAtNewLine = this.position;
|
|
return NL;
|
|
case CR: { // 0xD
|
|
// We may get NaN if we read past the end of the chunk, which is
|
|
// fine.
|
|
const next = chunk.charCodeAt(i + 1);
|
|
if (next === NL || next === NEL) {
|
|
// A CR NL or CR NEL sequence is converted to NL so we have to skip
|
|
// over the next character. We already know it has a size of 1.
|
|
this.i = i + 2;
|
|
}
|
|
// Otherwise, a CR is just converted to NL, no skip.
|
|
}
|
|
/* yes, fall through */
|
|
case NEL: // 0x85
|
|
case LS: // Ox2028
|
|
this.line++;
|
|
this.column = 0;
|
|
this.positionAtNewLine = this.position;
|
|
return NL_LIKE;
|
|
default:
|
|
this.fail("disallowed character.");
|
|
return code;
|
|
}
|
|
}
|
|
if (code > 0xDBFF) {
|
|
// This is a specialized version of isCharAndNotRestricted that takes into
|
|
// account that in this context code > 0xDBFF and code <= 0xFFFF. So it
|
|
// does not test cases that don't need testing.
|
|
if (!(code >= 0xE000 && code <= 0xFFFD)) {
|
|
this.fail("disallowed character.");
|
|
}
|
|
return code;
|
|
}
|
|
const final = 0x10000 + ((code - 0xD800) * 0x400) +
|
|
(chunk.charCodeAt(i + 1) - 0xDC00);
|
|
this.i = i + 2;
|
|
// This is a specialized version of isCharAndNotRestricted that takes into
|
|
// account that in this context necessarily final >= 0x10000.
|
|
if (final > 0x10FFFF) {
|
|
this.fail("disallowed character.");
|
|
}
|
|
return final;
|
|
}
|
|
/**
|
|
* Like ``getCode`` but with the return value normalized so that ``NL`` is
|
|
* returned for ``NL_LIKE``.
|
|
*/
|
|
getCodeNorm() {
|
|
const c = this.getCode();
|
|
return c === NL_LIKE ? NL : c;
|
|
}
|
|
unget() {
|
|
this.i = this.prevI;
|
|
this.column--;
|
|
}
|
|
/**
|
|
* Capture characters into a buffer until encountering one of a set of
|
|
* characters.
|
|
*
|
|
* @param chars An array of codepoints. Encountering a character in the array
|
|
* ends the capture. (``chars`` may safely contain ``NL``.)
|
|
*
|
|
* @return The character code that made the capture end, or ``EOC`` if we hit
|
|
* the end of the chunk. The return value cannot be NL_LIKE: NL is returned
|
|
* instead.
|
|
*/
|
|
captureTo(chars) {
|
|
let { i: start } = this;
|
|
const { chunk } = this;
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
const c = this.getCode();
|
|
const isNLLike = c === NL_LIKE;
|
|
const final = isNLLike ? NL : c;
|
|
if (final === EOC || chars.includes(final)) {
|
|
this.text += chunk.slice(start, this.prevI);
|
|
return final;
|
|
}
|
|
if (isNLLike) {
|
|
this.text += `${chunk.slice(start, this.prevI)}\n`;
|
|
start = this.i;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Capture characters into a buffer until encountering a character.
|
|
*
|
|
* @param char The codepoint that ends the capture. **NOTE ``char`` MAY NOT
|
|
* CONTAIN ``NL``.** Passing ``NL`` will result in buggy behavior.
|
|
*
|
|
* @return ``true`` if we ran into the character. Otherwise, we ran into the
|
|
* end of the current chunk.
|
|
*/
|
|
captureToChar(char) {
|
|
let { i: start } = this;
|
|
const { chunk } = this;
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
let c = this.getCode();
|
|
switch (c) {
|
|
case NL_LIKE:
|
|
this.text += `${chunk.slice(start, this.prevI)}\n`;
|
|
start = this.i;
|
|
c = NL;
|
|
break;
|
|
case EOC:
|
|
this.text += chunk.slice(start);
|
|
return false;
|
|
default:
|
|
}
|
|
if (c === char) {
|
|
this.text += chunk.slice(start, this.prevI);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Capture characters that satisfy ``isNameChar`` into the ``name`` field of
|
|
* this parser.
|
|
*
|
|
* @return The character code that made the test fail, or ``EOC`` if we hit
|
|
* the end of the chunk. The return value cannot be NL_LIKE: NL is returned
|
|
* instead.
|
|
*/
|
|
captureNameChars() {
|
|
const { chunk, i: start } = this;
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
const c = this.getCode();
|
|
if (c === EOC) {
|
|
this.name += chunk.slice(start);
|
|
return EOC;
|
|
}
|
|
// NL is not a name char so we don't have to test specifically for it.
|
|
if (!isNameChar(c)) {
|
|
this.name += chunk.slice(start, this.prevI);
|
|
return c === NL_LIKE ? NL : c;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Skip white spaces.
|
|
*
|
|
* @return The character that ended the skip, or ``EOC`` if we hit
|
|
* the end of the chunk. The return value cannot be NL_LIKE: NL is returned
|
|
* instead.
|
|
*/
|
|
skipSpaces() {
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
const c = this.getCodeNorm();
|
|
if (c === EOC || !isS(c)) {
|
|
return c;
|
|
}
|
|
}
|
|
}
|
|
setXMLVersion(version) {
|
|
this.currentXMLVersion = version;
|
|
/* eslint-disable @typescript-eslint/unbound-method */
|
|
if (version === "1.0") {
|
|
this.isChar = isChar10;
|
|
this.getCode = this.getCode10;
|
|
}
|
|
else {
|
|
this.isChar = isChar11;
|
|
this.getCode = this.getCode11;
|
|
}
|
|
/* eslint-enable @typescript-eslint/unbound-method */
|
|
}
|
|
// STATE ENGINE METHODS
|
|
// This needs to be a state separate from S_BEGIN_WHITESPACE because we want
|
|
// to be sure never to come back to this state later.
|
|
sBegin() {
|
|
// We are essentially peeking at the first character of the chunk. Since
|
|
// S_BEGIN can be in effect only when we start working on the first chunk,
|
|
// the index at which we must look is necessarily 0. Note also that the
|
|
// following test does not depend on decoding surrogates.
|
|
// If the initial character is 0xFEFF, ignore it.
|
|
if (this.chunk.charCodeAt(0) === 0xFEFF) {
|
|
this.i++;
|
|
this.column++;
|
|
}
|
|
this.state = S_BEGIN_WHITESPACE;
|
|
}
|
|
sBeginWhitespace() {
|
|
// We need to know whether we've encountered spaces or not because as soon
|
|
// as we run into a space, an XML declaration is no longer possible. Rather
|
|
// than slow down skipSpaces even in places where we don't care whether it
|
|
// skipped anything or not, we check whether prevI is equal to the value of
|
|
// i from before we skip spaces.
|
|
const iBefore = this.i;
|
|
const c = this.skipSpaces();
|
|
if (this.prevI !== iBefore) {
|
|
this.xmlDeclPossible = false;
|
|
}
|
|
switch (c) {
|
|
case LESS:
|
|
this.state = S_OPEN_WAKA;
|
|
// We could naively call closeText but in this state, it is not normal
|
|
// to have text be filled with any data.
|
|
if (this.text.length !== 0) {
|
|
throw new Error("no-empty text at start");
|
|
}
|
|
break;
|
|
case EOC:
|
|
break;
|
|
default:
|
|
this.unget();
|
|
this.state = S_TEXT;
|
|
this.xmlDeclPossible = false;
|
|
}
|
|
}
|
|
sDoctype() {
|
|
var _a;
|
|
const c = this.captureTo(DOCTYPE_TERMINATOR);
|
|
switch (c) {
|
|
case GREATER: {
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.doctypeHandler) === null || _a === void 0 ? void 0 : _a.call(this, this.text);
|
|
this.text = "";
|
|
this.state = S_TEXT;
|
|
this.doctype = true; // just remember that we saw it.
|
|
break;
|
|
}
|
|
case EOC:
|
|
break;
|
|
default:
|
|
this.text += String.fromCodePoint(c);
|
|
if (c === OPEN_BRACKET) {
|
|
this.state = S_DTD;
|
|
}
|
|
else if (isQuote(c)) {
|
|
this.state = S_DOCTYPE_QUOTE;
|
|
this.q = c;
|
|
}
|
|
}
|
|
}
|
|
sDoctypeQuote() {
|
|
const q = this.q;
|
|
if (this.captureToChar(q)) {
|
|
this.text += String.fromCodePoint(q);
|
|
this.q = null;
|
|
this.state = S_DOCTYPE;
|
|
}
|
|
}
|
|
sDTD() {
|
|
const c = this.captureTo(DTD_TERMINATOR);
|
|
if (c === EOC) {
|
|
return;
|
|
}
|
|
this.text += String.fromCodePoint(c);
|
|
if (c === CLOSE_BRACKET) {
|
|
this.state = S_DOCTYPE;
|
|
}
|
|
else if (c === LESS) {
|
|
this.state = S_DTD_OPEN_WAKA;
|
|
}
|
|
else if (isQuote(c)) {
|
|
this.state = S_DTD_QUOTED;
|
|
this.q = c;
|
|
}
|
|
}
|
|
sDTDQuoted() {
|
|
const q = this.q;
|
|
if (this.captureToChar(q)) {
|
|
this.text += String.fromCodePoint(q);
|
|
this.state = S_DTD;
|
|
this.q = null;
|
|
}
|
|
}
|
|
sDTDOpenWaka() {
|
|
const c = this.getCodeNorm();
|
|
this.text += String.fromCodePoint(c);
|
|
switch (c) {
|
|
case BANG:
|
|
this.state = S_DTD_OPEN_WAKA_BANG;
|
|
this.openWakaBang = "";
|
|
break;
|
|
case QUESTION:
|
|
this.state = S_DTD_PI;
|
|
break;
|
|
default:
|
|
this.state = S_DTD;
|
|
}
|
|
}
|
|
sDTDOpenWakaBang() {
|
|
const char = String.fromCodePoint(this.getCodeNorm());
|
|
const owb = this.openWakaBang += char;
|
|
this.text += char;
|
|
if (owb !== "-") {
|
|
this.state = owb === "--" ? S_DTD_COMMENT : S_DTD;
|
|
this.openWakaBang = "";
|
|
}
|
|
}
|
|
sDTDComment() {
|
|
if (this.captureToChar(MINUS)) {
|
|
this.text += "-";
|
|
this.state = S_DTD_COMMENT_ENDING;
|
|
}
|
|
}
|
|
sDTDCommentEnding() {
|
|
const c = this.getCodeNorm();
|
|
this.text += String.fromCodePoint(c);
|
|
this.state = c === MINUS ? S_DTD_COMMENT_ENDED : S_DTD_COMMENT;
|
|
}
|
|
sDTDCommentEnded() {
|
|
const c = this.getCodeNorm();
|
|
this.text += String.fromCodePoint(c);
|
|
if (c === GREATER) {
|
|
this.state = S_DTD;
|
|
}
|
|
else {
|
|
this.fail("malformed comment.");
|
|
// <!-- blah -- bloo --> will be recorded as
|
|
// a comment of " blah -- bloo "
|
|
this.state = S_DTD_COMMENT;
|
|
}
|
|
}
|
|
sDTDPI() {
|
|
if (this.captureToChar(QUESTION)) {
|
|
this.text += "?";
|
|
this.state = S_DTD_PI_ENDING;
|
|
}
|
|
}
|
|
sDTDPIEnding() {
|
|
const c = this.getCodeNorm();
|
|
this.text += String.fromCodePoint(c);
|
|
if (c === GREATER) {
|
|
this.state = S_DTD;
|
|
}
|
|
}
|
|
sText() {
|
|
//
|
|
// We did try a version of saxes where the S_TEXT state was split in two
|
|
// states: one for text inside the root element, and one for text
|
|
// outside. This was avoiding having to test this.tags.length to decide
|
|
// what implementation to actually use.
|
|
//
|
|
// Peformance testing on gigabyte-size files did not show any advantage to
|
|
// using the two states solution instead of the current one. Conversely, it
|
|
// made the code a bit more complicated elsewhere. For instance, a comment
|
|
// can appear before the root element so when a comment ended it was
|
|
// necessary to determine whether to return to the S_TEXT state or to the
|
|
// new text-outside-root state.
|
|
//
|
|
if (this.tags.length !== 0) {
|
|
this.handleTextInRoot();
|
|
}
|
|
else {
|
|
this.handleTextOutsideRoot();
|
|
}
|
|
}
|
|
sEntity() {
|
|
// This is essentially a specialized version of captureToChar(SEMICOLON...)
|
|
let { i: start } = this;
|
|
const { chunk } = this;
|
|
// eslint-disable-next-line no-labels, no-restricted-syntax
|
|
loop:
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
switch (this.getCode()) {
|
|
case NL_LIKE:
|
|
this.entity += `${chunk.slice(start, this.prevI)}\n`;
|
|
start = this.i;
|
|
break;
|
|
case SEMICOLON: {
|
|
const { entityReturnState } = this;
|
|
const entity = this.entity + chunk.slice(start, this.prevI);
|
|
this.state = entityReturnState;
|
|
let parsed;
|
|
if (entity === "") {
|
|
this.fail("empty entity name.");
|
|
parsed = "&;";
|
|
}
|
|
else {
|
|
parsed = this.parseEntity(entity);
|
|
this.entity = "";
|
|
}
|
|
if (entityReturnState !== S_TEXT || this.textHandler !== undefined) {
|
|
this.text += parsed;
|
|
}
|
|
// eslint-disable-next-line no-labels
|
|
break loop;
|
|
}
|
|
case EOC:
|
|
this.entity += chunk.slice(start);
|
|
// eslint-disable-next-line no-labels
|
|
break loop;
|
|
default:
|
|
}
|
|
}
|
|
}
|
|
sOpenWaka() {
|
|
// Reminder: a state handler is called with at least one character
|
|
// available in the current chunk. So the first call to get code inside of
|
|
// a state handler cannot return ``EOC``. That's why we don't test
|
|
// for it.
|
|
const c = this.getCode();
|
|
// either a /, ?, !, or text is coming next.
|
|
if (isNameStartChar(c)) {
|
|
this.state = S_OPEN_TAG;
|
|
this.unget();
|
|
this.xmlDeclPossible = false;
|
|
}
|
|
else {
|
|
switch (c) {
|
|
case FORWARD_SLASH:
|
|
this.state = S_CLOSE_TAG;
|
|
this.xmlDeclPossible = false;
|
|
break;
|
|
case BANG:
|
|
this.state = S_OPEN_WAKA_BANG;
|
|
this.openWakaBang = "";
|
|
this.xmlDeclPossible = false;
|
|
break;
|
|
case QUESTION:
|
|
this.state = S_PI_FIRST_CHAR;
|
|
break;
|
|
default:
|
|
this.fail("disallowed character in tag name");
|
|
this.state = S_TEXT;
|
|
this.xmlDeclPossible = false;
|
|
}
|
|
}
|
|
}
|
|
sOpenWakaBang() {
|
|
this.openWakaBang += String.fromCodePoint(this.getCodeNorm());
|
|
switch (this.openWakaBang) {
|
|
case "[CDATA[":
|
|
if (!this.sawRoot && !this.reportedTextBeforeRoot) {
|
|
this.fail("text data outside of root node.");
|
|
this.reportedTextBeforeRoot = true;
|
|
}
|
|
if (this.closedRoot && !this.reportedTextAfterRoot) {
|
|
this.fail("text data outside of root node.");
|
|
this.reportedTextAfterRoot = true;
|
|
}
|
|
this.state = S_CDATA;
|
|
this.openWakaBang = "";
|
|
break;
|
|
case "--":
|
|
this.state = S_COMMENT;
|
|
this.openWakaBang = "";
|
|
break;
|
|
case "DOCTYPE":
|
|
this.state = S_DOCTYPE;
|
|
if (this.doctype || this.sawRoot) {
|
|
this.fail("inappropriately located doctype declaration.");
|
|
}
|
|
this.openWakaBang = "";
|
|
break;
|
|
default:
|
|
// 7 happens to be the maximum length of the string that can possibly
|
|
// match one of the cases above.
|
|
if (this.openWakaBang.length >= 7) {
|
|
this.fail("incorrect syntax.");
|
|
}
|
|
}
|
|
}
|
|
sComment() {
|
|
if (this.captureToChar(MINUS)) {
|
|
this.state = S_COMMENT_ENDING;
|
|
}
|
|
}
|
|
sCommentEnding() {
|
|
var _a;
|
|
const c = this.getCodeNorm();
|
|
if (c === MINUS) {
|
|
this.state = S_COMMENT_ENDED;
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.commentHandler) === null || _a === void 0 ? void 0 : _a.call(this, this.text);
|
|
this.text = "";
|
|
}
|
|
else {
|
|
this.text += `-${String.fromCodePoint(c)}`;
|
|
this.state = S_COMMENT;
|
|
}
|
|
}
|
|
sCommentEnded() {
|
|
const c = this.getCodeNorm();
|
|
if (c !== GREATER) {
|
|
this.fail("malformed comment.");
|
|
// <!-- blah -- bloo --> will be recorded as
|
|
// a comment of " blah -- bloo "
|
|
this.text += `--${String.fromCodePoint(c)}`;
|
|
this.state = S_COMMENT;
|
|
}
|
|
else {
|
|
this.state = S_TEXT;
|
|
}
|
|
}
|
|
sCData() {
|
|
if (this.captureToChar(CLOSE_BRACKET)) {
|
|
this.state = S_CDATA_ENDING;
|
|
}
|
|
}
|
|
sCDataEnding() {
|
|
const c = this.getCodeNorm();
|
|
if (c === CLOSE_BRACKET) {
|
|
this.state = S_CDATA_ENDING_2;
|
|
}
|
|
else {
|
|
this.text += `]${String.fromCodePoint(c)}`;
|
|
this.state = S_CDATA;
|
|
}
|
|
}
|
|
sCDataEnding2() {
|
|
var _a;
|
|
const c = this.getCodeNorm();
|
|
switch (c) {
|
|
case GREATER: {
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.cdataHandler) === null || _a === void 0 ? void 0 : _a.call(this, this.text);
|
|
this.text = "";
|
|
this.state = S_TEXT;
|
|
break;
|
|
}
|
|
case CLOSE_BRACKET:
|
|
this.text += "]";
|
|
break;
|
|
default:
|
|
this.text += `]]${String.fromCodePoint(c)}`;
|
|
this.state = S_CDATA;
|
|
}
|
|
}
|
|
// We need this separate state to check the first character fo the pi target
|
|
// with this.nameStartCheck which allows less characters than this.nameCheck.
|
|
sPIFirstChar() {
|
|
const c = this.getCodeNorm();
|
|
// This is first because in the case where the file is well-formed this is
|
|
// the branch taken. We optimize for well-formedness.
|
|
if (this.nameStartCheck(c)) {
|
|
this.piTarget += String.fromCodePoint(c);
|
|
this.state = S_PI_REST;
|
|
}
|
|
else if (c === QUESTION || isS(c)) {
|
|
this.fail("processing instruction without a target.");
|
|
this.state = c === QUESTION ? S_PI_ENDING : S_PI_BODY;
|
|
}
|
|
else {
|
|
this.fail("disallowed character in processing instruction name.");
|
|
this.piTarget += String.fromCodePoint(c);
|
|
this.state = S_PI_REST;
|
|
}
|
|
}
|
|
sPIRest() {
|
|
// Capture characters into a piTarget while ``this.nameCheck`` run on the
|
|
// character read returns true.
|
|
const { chunk, i: start } = this;
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
const c = this.getCodeNorm();
|
|
if (c === EOC) {
|
|
this.piTarget += chunk.slice(start);
|
|
return;
|
|
}
|
|
// NL cannot satisfy this.nameCheck so we don't have to test specifically
|
|
// for it.
|
|
if (!this.nameCheck(c)) {
|
|
this.piTarget += chunk.slice(start, this.prevI);
|
|
const isQuestion = c === QUESTION;
|
|
if (isQuestion || isS(c)) {
|
|
if (this.piTarget === "xml") {
|
|
if (!this.xmlDeclPossible) {
|
|
this.fail("an XML declaration must be at the start of the document.");
|
|
}
|
|
this.state = isQuestion ? S_XML_DECL_ENDING : S_XML_DECL_NAME_START;
|
|
}
|
|
else {
|
|
this.state = isQuestion ? S_PI_ENDING : S_PI_BODY;
|
|
}
|
|
}
|
|
else {
|
|
this.fail("disallowed character in processing instruction name.");
|
|
this.piTarget += String.fromCodePoint(c);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
sPIBody() {
|
|
if (this.text.length === 0) {
|
|
const c = this.getCodeNorm();
|
|
if (c === QUESTION) {
|
|
this.state = S_PI_ENDING;
|
|
}
|
|
else if (!isS(c)) {
|
|
this.text = String.fromCodePoint(c);
|
|
}
|
|
}
|
|
// The question mark character is not valid inside any of the XML
|
|
// declaration name/value pairs.
|
|
else if (this.captureToChar(QUESTION)) {
|
|
this.state = S_PI_ENDING;
|
|
}
|
|
}
|
|
sPIEnding() {
|
|
var _a;
|
|
const c = this.getCodeNorm();
|
|
if (c === GREATER) {
|
|
const { piTarget } = this;
|
|
if (piTarget.toLowerCase() === "xml") {
|
|
this.fail("the XML declaration must appear at the start of the document.");
|
|
}
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.piHandler) === null || _a === void 0 ? void 0 : _a.call(this, {
|
|
target: piTarget,
|
|
body: this.text,
|
|
});
|
|
this.piTarget = this.text = "";
|
|
this.state = S_TEXT;
|
|
}
|
|
else if (c === QUESTION) {
|
|
// We ran into ?? as part of a processing instruction. We initially took
|
|
// the first ? as a sign that the PI was ending, but it is not. So we have
|
|
// to add it to the body but we take the new ? as a sign that the PI is
|
|
// ending.
|
|
this.text += "?";
|
|
}
|
|
else {
|
|
this.text += `?${String.fromCodePoint(c)}`;
|
|
this.state = S_PI_BODY;
|
|
}
|
|
this.xmlDeclPossible = false;
|
|
}
|
|
sXMLDeclNameStart() {
|
|
const c = this.skipSpaces();
|
|
// The question mark character is not valid inside any of the XML
|
|
// declaration name/value pairs.
|
|
if (c === QUESTION) {
|
|
// It is valid to go to S_XML_DECL_ENDING from this state.
|
|
this.state = S_XML_DECL_ENDING;
|
|
return;
|
|
}
|
|
if (c !== EOC) {
|
|
this.state = S_XML_DECL_NAME;
|
|
this.name = String.fromCodePoint(c);
|
|
}
|
|
}
|
|
sXMLDeclName() {
|
|
const c = this.captureTo(XML_DECL_NAME_TERMINATOR);
|
|
// The question mark character is not valid inside any of the XML
|
|
// declaration name/value pairs.
|
|
if (c === QUESTION) {
|
|
this.state = S_XML_DECL_ENDING;
|
|
this.name += this.text;
|
|
this.text = "";
|
|
this.fail("XML declaration is incomplete.");
|
|
return;
|
|
}
|
|
if (!(isS(c) || c === EQUAL)) {
|
|
return;
|
|
}
|
|
this.name += this.text;
|
|
this.text = "";
|
|
if (!this.xmlDeclExpects.includes(this.name)) {
|
|
switch (this.name.length) {
|
|
case 0:
|
|
this.fail("did not expect any more name/value pairs.");
|
|
break;
|
|
case 1:
|
|
this.fail(`expected the name ${this.xmlDeclExpects[0]}.`);
|
|
break;
|
|
default:
|
|
this.fail(`expected one of ${this.xmlDeclExpects.join(", ")}`);
|
|
}
|
|
}
|
|
this.state = c === EQUAL ? S_XML_DECL_VALUE_START : S_XML_DECL_EQ;
|
|
}
|
|
sXMLDeclEq() {
|
|
const c = this.getCodeNorm();
|
|
// The question mark character is not valid inside any of the XML
|
|
// declaration name/value pairs.
|
|
if (c === QUESTION) {
|
|
this.state = S_XML_DECL_ENDING;
|
|
this.fail("XML declaration is incomplete.");
|
|
return;
|
|
}
|
|
if (isS(c)) {
|
|
return;
|
|
}
|
|
if (c !== EQUAL) {
|
|
this.fail("value required.");
|
|
}
|
|
this.state = S_XML_DECL_VALUE_START;
|
|
}
|
|
sXMLDeclValueStart() {
|
|
const c = this.getCodeNorm();
|
|
// The question mark character is not valid inside any of the XML
|
|
// declaration name/value pairs.
|
|
if (c === QUESTION) {
|
|
this.state = S_XML_DECL_ENDING;
|
|
this.fail("XML declaration is incomplete.");
|
|
return;
|
|
}
|
|
if (isS(c)) {
|
|
return;
|
|
}
|
|
if (!isQuote(c)) {
|
|
this.fail("value must be quoted.");
|
|
this.q = SPACE;
|
|
}
|
|
else {
|
|
this.q = c;
|
|
}
|
|
this.state = S_XML_DECL_VALUE;
|
|
}
|
|
sXMLDeclValue() {
|
|
const c = this.captureTo([this.q, QUESTION]);
|
|
// The question mark character is not valid inside any of the XML
|
|
// declaration name/value pairs.
|
|
if (c === QUESTION) {
|
|
this.state = S_XML_DECL_ENDING;
|
|
this.text = "";
|
|
this.fail("XML declaration is incomplete.");
|
|
return;
|
|
}
|
|
if (c === EOC) {
|
|
return;
|
|
}
|
|
const value = this.text;
|
|
this.text = "";
|
|
switch (this.name) {
|
|
case "version": {
|
|
this.xmlDeclExpects = ["encoding", "standalone"];
|
|
const version = value;
|
|
this.xmlDecl.version = version;
|
|
// This is the test specified by XML 1.0 but it is fine for XML 1.1.
|
|
if (!/^1\.[0-9]+$/.test(version)) {
|
|
this.fail("version number must match /^1\\.[0-9]+$/.");
|
|
}
|
|
// When forceXMLVersion is set, the XML declaration is ignored.
|
|
else if (!this.opt.forceXMLVersion) {
|
|
this.setXMLVersion(version);
|
|
}
|
|
break;
|
|
}
|
|
case "encoding":
|
|
if (!/^[A-Za-z][A-Za-z0-9._-]*$/.test(value)) {
|
|
this.fail("encoding value must match \
|
|
/^[A-Za-z0-9][A-Za-z0-9._-]*$/.");
|
|
}
|
|
this.xmlDeclExpects = ["standalone"];
|
|
this.xmlDecl.encoding = value;
|
|
break;
|
|
case "standalone":
|
|
if (value !== "yes" && value !== "no") {
|
|
this.fail("standalone value must match \"yes\" or \"no\".");
|
|
}
|
|
this.xmlDeclExpects = [];
|
|
this.xmlDecl.standalone = value;
|
|
break;
|
|
default:
|
|
// We don't need to raise an error here since we've already raised one
|
|
// when checking what name was expected.
|
|
}
|
|
this.name = "";
|
|
this.state = S_XML_DECL_SEPARATOR;
|
|
}
|
|
sXMLDeclSeparator() {
|
|
const c = this.getCodeNorm();
|
|
// The question mark character is not valid inside any of the XML
|
|
// declaration name/value pairs.
|
|
if (c === QUESTION) {
|
|
// It is valid to go to S_XML_DECL_ENDING from this state.
|
|
this.state = S_XML_DECL_ENDING;
|
|
return;
|
|
}
|
|
if (!isS(c)) {
|
|
this.fail("whitespace required.");
|
|
this.unget();
|
|
}
|
|
this.state = S_XML_DECL_NAME_START;
|
|
}
|
|
sXMLDeclEnding() {
|
|
var _a;
|
|
const c = this.getCodeNorm();
|
|
if (c === GREATER) {
|
|
if (this.piTarget !== "xml") {
|
|
this.fail("processing instructions are not allowed before root.");
|
|
}
|
|
else if (this.name !== "version" &&
|
|
this.xmlDeclExpects.includes("version")) {
|
|
this.fail("XML declaration must contain a version.");
|
|
}
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.xmldeclHandler) === null || _a === void 0 ? void 0 : _a.call(this, this.xmlDecl);
|
|
this.name = "";
|
|
this.piTarget = this.text = "";
|
|
this.state = S_TEXT;
|
|
}
|
|
else {
|
|
// We got here because the previous character was a ?, but the question
|
|
// mark character is not valid inside any of the XML declaration
|
|
// name/value pairs.
|
|
this.fail("The character ? is disallowed anywhere in XML declarations.");
|
|
}
|
|
this.xmlDeclPossible = false;
|
|
}
|
|
sOpenTag() {
|
|
var _a;
|
|
const c = this.captureNameChars();
|
|
if (c === EOC) {
|
|
return;
|
|
}
|
|
const tag = this.tag = {
|
|
name: this.name,
|
|
attributes: Object.create(null),
|
|
};
|
|
this.name = "";
|
|
if (this.xmlnsOpt) {
|
|
this.topNS = tag.ns = Object.create(null);
|
|
}
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.openTagStartHandler) === null || _a === void 0 ? void 0 : _a.call(this, tag);
|
|
this.sawRoot = true;
|
|
if (!this.fragmentOpt && this.closedRoot) {
|
|
this.fail("documents may contain only one root.");
|
|
}
|
|
switch (c) {
|
|
case GREATER:
|
|
this.openTag();
|
|
break;
|
|
case FORWARD_SLASH:
|
|
this.state = S_OPEN_TAG_SLASH;
|
|
break;
|
|
default:
|
|
if (!isS(c)) {
|
|
this.fail("disallowed character in tag name.");
|
|
}
|
|
this.state = S_ATTRIB;
|
|
}
|
|
}
|
|
sOpenTagSlash() {
|
|
if (this.getCode() === GREATER) {
|
|
this.openSelfClosingTag();
|
|
}
|
|
else {
|
|
this.fail("forward-slash in opening tag not followed by >.");
|
|
this.state = S_ATTRIB;
|
|
}
|
|
}
|
|
sAttrib() {
|
|
const c = this.skipSpaces();
|
|
if (c === EOC) {
|
|
return;
|
|
}
|
|
if (isNameStartChar(c)) {
|
|
this.unget();
|
|
this.state = S_ATTRIB_NAME;
|
|
}
|
|
else if (c === GREATER) {
|
|
this.openTag();
|
|
}
|
|
else if (c === FORWARD_SLASH) {
|
|
this.state = S_OPEN_TAG_SLASH;
|
|
}
|
|
else {
|
|
this.fail("disallowed character in attribute name.");
|
|
}
|
|
}
|
|
sAttribName() {
|
|
const c = this.captureNameChars();
|
|
if (c === EQUAL) {
|
|
this.state = S_ATTRIB_VALUE;
|
|
}
|
|
else if (isS(c)) {
|
|
this.state = S_ATTRIB_NAME_SAW_WHITE;
|
|
}
|
|
else if (c === GREATER) {
|
|
this.fail("attribute without value.");
|
|
this.pushAttrib(this.name, this.name);
|
|
this.name = this.text = "";
|
|
this.openTag();
|
|
}
|
|
else if (c !== EOC) {
|
|
this.fail("disallowed character in attribute name.");
|
|
}
|
|
}
|
|
sAttribNameSawWhite() {
|
|
const c = this.skipSpaces();
|
|
switch (c) {
|
|
case EOC:
|
|
return;
|
|
case EQUAL:
|
|
this.state = S_ATTRIB_VALUE;
|
|
break;
|
|
default:
|
|
this.fail("attribute without value.");
|
|
// Should we do this???
|
|
// this.tag.attributes[this.name] = "";
|
|
this.text = "";
|
|
this.name = "";
|
|
if (c === GREATER) {
|
|
this.openTag();
|
|
}
|
|
else if (isNameStartChar(c)) {
|
|
this.unget();
|
|
this.state = S_ATTRIB_NAME;
|
|
}
|
|
else {
|
|
this.fail("disallowed character in attribute name.");
|
|
this.state = S_ATTRIB;
|
|
}
|
|
}
|
|
}
|
|
sAttribValue() {
|
|
const c = this.getCodeNorm();
|
|
if (isQuote(c)) {
|
|
this.q = c;
|
|
this.state = S_ATTRIB_VALUE_QUOTED;
|
|
}
|
|
else if (!isS(c)) {
|
|
this.fail("unquoted attribute value.");
|
|
this.state = S_ATTRIB_VALUE_UNQUOTED;
|
|
this.unget();
|
|
}
|
|
}
|
|
sAttribValueQuoted() {
|
|
// We deliberately do not use captureTo here. The specialized code we use
|
|
// here is faster than using captureTo.
|
|
const { q, chunk } = this;
|
|
let { i: start } = this;
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
switch (this.getCode()) {
|
|
case q:
|
|
this.pushAttrib(this.name, this.text + chunk.slice(start, this.prevI));
|
|
this.name = this.text = "";
|
|
this.q = null;
|
|
this.state = S_ATTRIB_VALUE_CLOSED;
|
|
return;
|
|
case AMP:
|
|
this.text += chunk.slice(start, this.prevI);
|
|
this.state = S_ENTITY;
|
|
this.entityReturnState = S_ATTRIB_VALUE_QUOTED;
|
|
return;
|
|
case NL:
|
|
case NL_LIKE:
|
|
case TAB:
|
|
this.text += `${chunk.slice(start, this.prevI)} `;
|
|
start = this.i;
|
|
break;
|
|
case LESS:
|
|
this.text += chunk.slice(start, this.prevI);
|
|
this.fail("disallowed character.");
|
|
return;
|
|
case EOC:
|
|
this.text += chunk.slice(start);
|
|
return;
|
|
default:
|
|
}
|
|
}
|
|
}
|
|
sAttribValueClosed() {
|
|
const c = this.getCodeNorm();
|
|
if (isS(c)) {
|
|
this.state = S_ATTRIB;
|
|
}
|
|
else if (c === GREATER) {
|
|
this.openTag();
|
|
}
|
|
else if (c === FORWARD_SLASH) {
|
|
this.state = S_OPEN_TAG_SLASH;
|
|
}
|
|
else if (isNameStartChar(c)) {
|
|
this.fail("no whitespace between attributes.");
|
|
this.unget();
|
|
this.state = S_ATTRIB_NAME;
|
|
}
|
|
else {
|
|
this.fail("disallowed character in attribute name.");
|
|
}
|
|
}
|
|
sAttribValueUnquoted() {
|
|
// We don't do anything regarding EOL or space handling for unquoted
|
|
// attributes. We already have failed by the time we get here, and the
|
|
// contract that saxes upholds states that upon failure, it is not safe to
|
|
// rely on the data passed to event handlers (other than
|
|
// ``onerror``). Passing "bad" data is not a problem.
|
|
const c = this.captureTo(ATTRIB_VALUE_UNQUOTED_TERMINATOR);
|
|
switch (c) {
|
|
case AMP:
|
|
this.state = S_ENTITY;
|
|
this.entityReturnState = S_ATTRIB_VALUE_UNQUOTED;
|
|
break;
|
|
case LESS:
|
|
this.fail("disallowed character.");
|
|
break;
|
|
case EOC:
|
|
break;
|
|
default:
|
|
if (this.text.includes("]]>")) {
|
|
this.fail("the string \"]]>\" is disallowed in char data.");
|
|
}
|
|
this.pushAttrib(this.name, this.text);
|
|
this.name = this.text = "";
|
|
if (c === GREATER) {
|
|
this.openTag();
|
|
}
|
|
else {
|
|
this.state = S_ATTRIB;
|
|
}
|
|
}
|
|
}
|
|
sCloseTag() {
|
|
const c = this.captureNameChars();
|
|
if (c === GREATER) {
|
|
this.closeTag();
|
|
}
|
|
else if (isS(c)) {
|
|
this.state = S_CLOSE_TAG_SAW_WHITE;
|
|
}
|
|
else if (c !== EOC) {
|
|
this.fail("disallowed character in closing tag.");
|
|
}
|
|
}
|
|
sCloseTagSawWhite() {
|
|
switch (this.skipSpaces()) {
|
|
case GREATER:
|
|
this.closeTag();
|
|
break;
|
|
case EOC:
|
|
break;
|
|
default:
|
|
this.fail("disallowed character in closing tag.");
|
|
}
|
|
}
|
|
// END OF STATE ENGINE METHODS
|
|
handleTextInRoot() {
|
|
// This is essentially a specialized version of captureTo which is optimized
|
|
// for performing the ]]> check. A previous version of this code, checked
|
|
// ``this.text`` for the presence of ]]>. It simplified the code but was
|
|
// very costly when character data contained a lot of entities to be parsed.
|
|
//
|
|
// Since we are using a specialized loop, we also keep track of the presence
|
|
// of ]]> in text data. The sequence ]]> is forbidden to appear as-is.
|
|
//
|
|
let { i: start, forbiddenState } = this;
|
|
const { chunk, textHandler: handler } = this;
|
|
// eslint-disable-next-line no-labels, no-restricted-syntax
|
|
scanLoop:
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
switch (this.getCode()) {
|
|
case LESS: {
|
|
this.state = S_OPEN_WAKA;
|
|
if (handler !== undefined) {
|
|
const { text } = this;
|
|
const slice = chunk.slice(start, this.prevI);
|
|
if (text.length !== 0) {
|
|
handler(text + slice);
|
|
this.text = "";
|
|
}
|
|
else if (slice.length !== 0) {
|
|
handler(slice);
|
|
}
|
|
}
|
|
forbiddenState = FORBIDDEN_START;
|
|
// eslint-disable-next-line no-labels
|
|
break scanLoop;
|
|
}
|
|
case AMP:
|
|
this.state = S_ENTITY;
|
|
this.entityReturnState = S_TEXT;
|
|
if (handler !== undefined) {
|
|
this.text += chunk.slice(start, this.prevI);
|
|
}
|
|
forbiddenState = FORBIDDEN_START;
|
|
// eslint-disable-next-line no-labels
|
|
break scanLoop;
|
|
case CLOSE_BRACKET:
|
|
switch (forbiddenState) {
|
|
case FORBIDDEN_START:
|
|
forbiddenState = FORBIDDEN_BRACKET;
|
|
break;
|
|
case FORBIDDEN_BRACKET:
|
|
forbiddenState = FORBIDDEN_BRACKET_BRACKET;
|
|
break;
|
|
case FORBIDDEN_BRACKET_BRACKET:
|
|
break;
|
|
default:
|
|
throw new Error("impossible state");
|
|
}
|
|
break;
|
|
case GREATER:
|
|
if (forbiddenState === FORBIDDEN_BRACKET_BRACKET) {
|
|
this.fail("the string \"]]>\" is disallowed in char data.");
|
|
}
|
|
forbiddenState = FORBIDDEN_START;
|
|
break;
|
|
case NL_LIKE:
|
|
if (handler !== undefined) {
|
|
this.text += `${chunk.slice(start, this.prevI)}\n`;
|
|
}
|
|
start = this.i;
|
|
forbiddenState = FORBIDDEN_START;
|
|
break;
|
|
case EOC:
|
|
if (handler !== undefined) {
|
|
this.text += chunk.slice(start);
|
|
}
|
|
// eslint-disable-next-line no-labels
|
|
break scanLoop;
|
|
default:
|
|
forbiddenState = FORBIDDEN_START;
|
|
}
|
|
}
|
|
this.forbiddenState = forbiddenState;
|
|
}
|
|
handleTextOutsideRoot() {
|
|
// This is essentially a specialized version of captureTo which is optimized
|
|
// for a specialized task. We keep track of the presence of non-space
|
|
// characters in the text since these are errors when appearing outside the
|
|
// document root element.
|
|
let { i: start } = this;
|
|
const { chunk, textHandler: handler } = this;
|
|
let nonSpace = false;
|
|
// eslint-disable-next-line no-labels, no-restricted-syntax
|
|
outRootLoop:
|
|
// eslint-disable-next-line no-constant-condition
|
|
while (true) {
|
|
const code = this.getCode();
|
|
switch (code) {
|
|
case LESS: {
|
|
this.state = S_OPEN_WAKA;
|
|
if (handler !== undefined) {
|
|
const { text } = this;
|
|
const slice = chunk.slice(start, this.prevI);
|
|
if (text.length !== 0) {
|
|
handler(text + slice);
|
|
this.text = "";
|
|
}
|
|
else if (slice.length !== 0) {
|
|
handler(slice);
|
|
}
|
|
}
|
|
// eslint-disable-next-line no-labels
|
|
break outRootLoop;
|
|
}
|
|
case AMP:
|
|
this.state = S_ENTITY;
|
|
this.entityReturnState = S_TEXT;
|
|
if (handler !== undefined) {
|
|
this.text += chunk.slice(start, this.prevI);
|
|
}
|
|
nonSpace = true;
|
|
// eslint-disable-next-line no-labels
|
|
break outRootLoop;
|
|
case NL_LIKE:
|
|
if (handler !== undefined) {
|
|
this.text += `${chunk.slice(start, this.prevI)}\n`;
|
|
}
|
|
start = this.i;
|
|
break;
|
|
case EOC:
|
|
if (handler !== undefined) {
|
|
this.text += chunk.slice(start);
|
|
}
|
|
// eslint-disable-next-line no-labels
|
|
break outRootLoop;
|
|
default:
|
|
if (!isS(code)) {
|
|
nonSpace = true;
|
|
}
|
|
}
|
|
}
|
|
if (!nonSpace) {
|
|
return;
|
|
}
|
|
// We use the reportedTextBeforeRoot and reportedTextAfterRoot flags
|
|
// to avoid reporting errors for every single character that is out of
|
|
// place.
|
|
if (!this.sawRoot && !this.reportedTextBeforeRoot) {
|
|
this.fail("text data outside of root node.");
|
|
this.reportedTextBeforeRoot = true;
|
|
}
|
|
if (this.closedRoot && !this.reportedTextAfterRoot) {
|
|
this.fail("text data outside of root node.");
|
|
this.reportedTextAfterRoot = true;
|
|
}
|
|
}
|
|
pushAttribNS(name, value) {
|
|
var _a;
|
|
const { prefix, local } = this.qname(name);
|
|
const attr = { name, prefix, local, value };
|
|
this.attribList.push(attr);
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.attributeHandler) === null || _a === void 0 ? void 0 : _a.call(this, attr);
|
|
if (prefix === "xmlns") {
|
|
const trimmed = value.trim();
|
|
if (this.currentXMLVersion === "1.0" && trimmed === "") {
|
|
this.fail("invalid attempt to undefine prefix in XML 1.0");
|
|
}
|
|
this.topNS[local] = trimmed;
|
|
nsPairCheck(this, local, trimmed);
|
|
}
|
|
else if (name === "xmlns") {
|
|
const trimmed = value.trim();
|
|
this.topNS[""] = trimmed;
|
|
nsPairCheck(this, "", trimmed);
|
|
}
|
|
}
|
|
pushAttribPlain(name, value) {
|
|
var _a;
|
|
const attr = { name, value };
|
|
this.attribList.push(attr);
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.attributeHandler) === null || _a === void 0 ? void 0 : _a.call(this, attr);
|
|
}
|
|
/**
|
|
* End parsing. This performs final well-formedness checks and resets the
|
|
* parser to a clean state.
|
|
*
|
|
* @returns this
|
|
*/
|
|
end() {
|
|
var _a, _b;
|
|
if (!this.sawRoot) {
|
|
this.fail("document must contain a root element.");
|
|
}
|
|
const { tags } = this;
|
|
while (tags.length > 0) {
|
|
const tag = tags.pop();
|
|
this.fail(`unclosed tag: ${tag.name}`);
|
|
}
|
|
if ((this.state !== S_BEGIN) && (this.state !== S_TEXT)) {
|
|
this.fail("unexpected end.");
|
|
}
|
|
const { text } = this;
|
|
if (text.length !== 0) {
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.textHandler) === null || _a === void 0 ? void 0 : _a.call(this, text);
|
|
this.text = "";
|
|
}
|
|
this._closed = true;
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_b = this.endHandler) === null || _b === void 0 ? void 0 : _b.call(this);
|
|
this._init();
|
|
return this;
|
|
}
|
|
/**
|
|
* Resolve a namespace prefix.
|
|
*
|
|
* @param prefix The prefix to resolve.
|
|
*
|
|
* @returns The namespace URI or ``undefined`` if the prefix is not defined.
|
|
*/
|
|
resolve(prefix) {
|
|
var _a, _b;
|
|
let uri = this.topNS[prefix];
|
|
if (uri !== undefined) {
|
|
return uri;
|
|
}
|
|
const { tags } = this;
|
|
for (let index = tags.length - 1; index >= 0; index--) {
|
|
uri = tags[index].ns[prefix];
|
|
if (uri !== undefined) {
|
|
return uri;
|
|
}
|
|
}
|
|
uri = this.ns[prefix];
|
|
if (uri !== undefined) {
|
|
return uri;
|
|
}
|
|
return (_b = (_a = this.opt).resolvePrefix) === null || _b === void 0 ? void 0 : _b.call(_a, prefix);
|
|
}
|
|
/**
|
|
* Parse a qname into its prefix and local name parts.
|
|
*
|
|
* @param name The name to parse
|
|
*
|
|
* @returns
|
|
*/
|
|
qname(name) {
|
|
// This is faster than using name.split(":").
|
|
const colon = name.indexOf(":");
|
|
if (colon === -1) {
|
|
return { prefix: "", local: name };
|
|
}
|
|
const local = name.slice(colon + 1);
|
|
const prefix = name.slice(0, colon);
|
|
if (prefix === "" || local === "" || local.includes(":")) {
|
|
this.fail(`malformed name: ${name}.`);
|
|
}
|
|
return { prefix, local };
|
|
}
|
|
processAttribsNS() {
|
|
var _a;
|
|
const { attribList } = this;
|
|
const tag = this.tag;
|
|
{
|
|
// add namespace info to tag
|
|
const { prefix, local } = this.qname(tag.name);
|
|
tag.prefix = prefix;
|
|
tag.local = local;
|
|
const uri = tag.uri = (_a = this.resolve(prefix)) !== null && _a !== void 0 ? _a : "";
|
|
if (prefix !== "") {
|
|
if (prefix === "xmlns") {
|
|
this.fail("tags may not have \"xmlns\" as prefix.");
|
|
}
|
|
if (uri === "") {
|
|
this.fail(`unbound namespace prefix: ${JSON.stringify(prefix)}.`);
|
|
tag.uri = prefix;
|
|
}
|
|
}
|
|
}
|
|
if (attribList.length === 0) {
|
|
return;
|
|
}
|
|
const { attributes } = tag;
|
|
const seen = new Set();
|
|
// Note: do not apply default ns to attributes:
|
|
// http://www.w3.org/TR/REC-xml-names/#defaulting
|
|
for (const attr of attribList) {
|
|
const { name, prefix, local } = attr;
|
|
let uri;
|
|
let eqname;
|
|
if (prefix === "") {
|
|
uri = name === "xmlns" ? XMLNS_NAMESPACE : "";
|
|
eqname = name;
|
|
}
|
|
else {
|
|
uri = this.resolve(prefix);
|
|
// if there's any attributes with an undefined namespace,
|
|
// then fail on them now.
|
|
if (uri === undefined) {
|
|
this.fail(`unbound namespace prefix: ${JSON.stringify(prefix)}.`);
|
|
uri = prefix;
|
|
}
|
|
eqname = `{${uri}}${local}`;
|
|
}
|
|
if (seen.has(eqname)) {
|
|
this.fail(`duplicate attribute: ${eqname}.`);
|
|
}
|
|
seen.add(eqname);
|
|
attr.uri = uri;
|
|
attributes[name] = attr;
|
|
}
|
|
this.attribList = [];
|
|
}
|
|
processAttribsPlain() {
|
|
const { attribList } = this;
|
|
// eslint-disable-next-line prefer-destructuring
|
|
const attributes = this.tag.attributes;
|
|
for (const { name, value } of attribList) {
|
|
if (attributes[name] !== undefined) {
|
|
this.fail(`duplicate attribute: ${name}.`);
|
|
}
|
|
attributes[name] = value;
|
|
}
|
|
this.attribList = [];
|
|
}
|
|
/**
|
|
* Handle a complete open tag. This parser code calls this once it has seen
|
|
* the whole tag. This method checks for well-formeness and then emits
|
|
* ``onopentag``.
|
|
*/
|
|
openTag() {
|
|
var _a;
|
|
this.processAttribs();
|
|
const { tags } = this;
|
|
const tag = this.tag;
|
|
tag.isSelfClosing = false;
|
|
// There cannot be any pending text here due to the onopentagstart that was
|
|
// necessarily emitted before we get here. So we do not check text.
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.openTagHandler) === null || _a === void 0 ? void 0 : _a.call(this, tag);
|
|
tags.push(tag);
|
|
this.state = S_TEXT;
|
|
this.name = "";
|
|
}
|
|
/**
|
|
* Handle a complete self-closing tag. This parser code calls this once it has
|
|
* seen the whole tag. This method checks for well-formeness and then emits
|
|
* ``onopentag`` and ``onclosetag``.
|
|
*/
|
|
openSelfClosingTag() {
|
|
var _a, _b, _c;
|
|
this.processAttribs();
|
|
const { tags } = this;
|
|
const tag = this.tag;
|
|
tag.isSelfClosing = true;
|
|
// There cannot be any pending text here due to the onopentagstart that was
|
|
// necessarily emitted before we get here. So we do not check text.
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_a = this.openTagHandler) === null || _a === void 0 ? void 0 : _a.call(this, tag);
|
|
// eslint-disable-next-line no-unused-expressions
|
|
(_b = this.closeTagHandler) === null || _b === void 0 ? void 0 : _b.call(this, tag);
|
|
const top = this.tag = (_c = tags[tags.length - 1]) !== null && _c !== void 0 ? _c : null;
|
|
if (top === null) {
|
|
this.closedRoot = true;
|
|
}
|
|
this.state = S_TEXT;
|
|
this.name = "";
|
|
}
|
|
/**
|
|
* Handle a complete close tag. This parser code calls this once it has seen
|
|
* the whole tag. This method checks for well-formeness and then emits
|
|
* ``onclosetag``.
|
|
*/
|
|
closeTag() {
|
|
const { tags, name } = this;
|
|
// Our state after this will be S_TEXT, no matter what, and we can clear
|
|
// tagName now.
|
|
this.state = S_TEXT;
|
|
this.name = "";
|
|
if (name === "") {
|
|
this.fail("weird empty close tag.");
|
|
this.text += "</>";
|
|
return;
|
|
}
|
|
const handler = this.closeTagHandler;
|
|
let l = tags.length;
|
|
while (l-- > 0) {
|
|
const tag = this.tag = tags.pop();
|
|
this.topNS = tag.ns;
|
|
// eslint-disable-next-line no-unused-expressions
|
|
handler === null || handler === void 0 ? void 0 : handler(tag);
|
|
if (tag.name === name) {
|
|
break;
|
|
}
|
|
this.fail("unexpected close tag.");
|
|
}
|
|
if (l === 0) {
|
|
this.closedRoot = true;
|
|
}
|
|
else if (l < 0) {
|
|
this.fail(`unmatched closing tag: ${name}.`);
|
|
this.text += `</${name}>`;
|
|
}
|
|
}
|
|
/**
|
|
* Resolves an entity. Makes any necessary well-formedness checks.
|
|
*
|
|
* @param entity The entity to resolve.
|
|
*
|
|
* @returns The parsed entity.
|
|
*/
|
|
parseEntity(entity) {
|
|
// startsWith would be significantly slower for this test.
|
|
// eslint-disable-next-line @typescript-eslint/prefer-string-starts-ends-with
|
|
if (entity[0] !== "#") {
|
|
const defined = this.ENTITIES[entity];
|
|
if (defined !== undefined) {
|
|
return defined;
|
|
}
|
|
this.fail(this.isName(entity) ? "undefined entity." :
|
|
"disallowed character in entity name.");
|
|
return `&${entity};`;
|
|
}
|
|
let num = NaN;
|
|
if (entity[1] === "x" && /^#x[0-9a-f]+$/i.test(entity)) {
|
|
num = parseInt(entity.slice(2), 16);
|
|
}
|
|
else if (/^#[0-9]+$/.test(entity)) {
|
|
num = parseInt(entity.slice(1), 10);
|
|
}
|
|
// The character reference is required to match the CHAR production.
|
|
if (!this.isChar(num)) {
|
|
this.fail("malformed character entity.");
|
|
return `&${entity};`;
|
|
}
|
|
return String.fromCodePoint(num);
|
|
}
|
|
}
|
|
exports.SaxesParser = SaxesParser;
|
|
//# sourceMappingURL=saxes.js.map
|