23146869289

Committed 16 Mar 2026 01:45PM UTC coverage: 97.709% (-0.1%) from 97.837%

Build # 23146869289

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push

github

Committed by

amitguptagwl

Commit Message

refactor: performance improvement

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64.43

/src/xmlparser/DocTypeReader.js

import { isName } from '../util.js';

export default class DocTypeReader {
    constructor(options) {
        this.suppressValidationErr = !options;
        this.options = options;
    }

    readDocType(xmlData, i) {
        const entities = Object.create(null);
        let entityCount = 0;

        if (xmlData[i + 3] === 'O' &&
            xmlData[i + 4] === 'C' &&
            xmlData[i + 5] === 'T' &&
            xmlData[i + 6] === 'Y' &&
            xmlData[i + 7] === 'P' &&
            xmlData[i + 8] === 'E') {
            i = i + 9;
            let angleBracketsCount = 1;
            let hasBody = false, comment = false;
            let exp = "";
            for (; i < xmlData.length; i++) {
                if (xmlData[i] === '<' && !comment) { //Determine the tag type
                    if (hasBody && hasSeq(xmlData, "!ENTITY", i)) {
                        i += 7;
                        let entityName, val;
                        [entityName, val, i] = this.readEntityExp(xmlData, i + 1, this.suppressValidationErr);
                        if (val.indexOf("&") === -1) { //Parameter entities are not supported
                            if (this.options.enabled !== false &&
                                this.options.maxEntityCount &&
                                entityCount >= this.options.maxEntityCount) {
                                throw new Error(
                                    `Entity count (${entityCount + 1}) exceeds maximum allowed (${this.options.maxEntityCount})`
                                );
                            }
                            //const escaped = entityName.replace(/[.\-+*:]/g, '\\.');
                            const escaped = entityName.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
                            entities[entityName] = {
                                regx: RegExp(`&${escaped};`, "g"),
                                val: val
                            };
                            entityCount++;
                        }
                    }
                    else if (hasBody && hasSeq(xmlData, "!ELEMENT", i)) {
                        i += 8;//Not supported
                        const { index } = this.readElementExp(xmlData, i + 1);
                        i = index;
                    } else if (hasBody && hasSeq(xmlData, "!ATTLIST", i)) {
                        i += 8;//Not supported
                        // const {index} = this.readAttlistExp(xmlData,i+1);
                        // i = index;
                    } else if (hasBody && hasSeq(xmlData, "!NOTATION", i)) {
                        i += 9;//Not supported
                        const { index } = this.readNotationExp(xmlData, i + 1, this.suppressValidationErr);
                        i = index;
                    } else if (hasSeq(xmlData, "!--", i)) comment = true;
                    else throw new Error(`Invalid DOCTYPE`);

                    angleBracketsCount++;
                    exp = "";
                } else if (xmlData[i] === '>') { //Read tag content
                    if (comment) {
                        if (xmlData[i - 1] === "-" && xmlData[i - 2] === "-") {
                            comment = false;
                            angleBracketsCount--;
                        }
                    } else {
                        angleBracketsCount--;
                    }
                    if (angleBracketsCount === 0) {
                        break;
                    }
                } else if (xmlData[i] === '[') {
                    hasBody = true;
                } else {
                    exp += xmlData[i];
                }
            }
            if (angleBracketsCount !== 0) {
                throw new Error(`Unclosed DOCTYPE`);
            }
        } else {
            throw new Error(`Invalid Tag instead of DOCTYPE`);
        }
        return { entities, i };
    }
    readEntityExp(xmlData, i) {
        //External entities are not supported
        //    <!ENTITY ext SYSTEM "http://normal-website.com" >

        //Parameter entities are not supported
        //    <!ENTITY entityname "&anotherElement;">

        //Internal entities are supported
        //    <!ENTITY entityname "replacement text">

        // Skip leading whitespace after <!ENTITY
        i = skipWhitespace(xmlData, i);

        // Read entity name
        let entityName = "";
        while (i < xmlData.length && !/\s/.test(xmlData[i]) && xmlData[i] !== '"' && xmlData[i] !== "'") {
            entityName += xmlData[i];
            i++;
        }
        validateEntityName(entityName);

        // Skip whitespace after entity name
        i = skipWhitespace(xmlData, i);

        // Check for unsupported constructs (external entities or parameter entities)
        if (!this.suppressValidationErr) {
            if (xmlData.substring(i, i + 6).toUpperCase() === "SYSTEM") {
                throw new Error("External entities are not supported");
            } else if (xmlData[i] === "%") {
                throw new Error("Parameter entities are not supported");
            }
        }

        // Read entity value (internal entity)
        let entityValue = "";
        [i, entityValue] = this.readIdentifierVal(xmlData, i, "entity");

        // Validate entity size
        if (this.options.enabled !== false &&
            this.options.maxEntitySize &&
            entityValue.length > this.options.maxEntitySize) {
            throw new Error(
                `Entity "${entityName}" size (${entityValue.length}) exceeds maximum allowed size (${this.options.maxEntitySize})`
            );
        }

        i--;
        return [entityName, entityValue, i];
    }

    readNotationExp(xmlData, i) {
        // Skip leading whitespace after <!NOTATION
        i = skipWhitespace(xmlData, i);

        // Read notation name
        let notationName = "";
        while (i < xmlData.length && !/\s/.test(xmlData[i])) {
            notationName += xmlData[i];
            i++;
        }
        !this.suppressValidationErr && validateEntityName(notationName);

        // Skip whitespace after notation name
        i = skipWhitespace(xmlData, i);

        // Check identifier type (SYSTEM or PUBLIC)
        const identifierType = xmlData.substring(i, i + 6).toUpperCase();
        if (!this.suppressValidationErr && identifierType !== "SYSTEM" && identifierType !== "PUBLIC") {
            throw new Error(`Expected SYSTEM or PUBLIC, found "${identifierType}"`);
        }
        i += identifierType.length;

        // Skip whitespace after identifier type
        i = skipWhitespace(xmlData, i);

        // Read public identifier (if PUBLIC)
        let publicIdentifier = null;
        let systemIdentifier = null;

        if (identifierType === "PUBLIC") {
            [i, publicIdentifier] = this.readIdentifierVal(xmlData, i, "publicIdentifier");

            // Skip whitespace after public identifier
            i = skipWhitespace(xmlData, i);

            // Optionally read system identifier
            if (xmlData[i] === '"' || xmlData[i] === "'") {
                [i, systemIdentifier] = this.readIdentifierVal(xmlData, i, "systemIdentifier");
            }
        } else if (identifierType === "SYSTEM") {
            // Read system identifier (mandatory for SYSTEM)
            [i, systemIdentifier] = this.readIdentifierVal(xmlData, i, "systemIdentifier");

            if (!this.suppressValidationErr && !systemIdentifier) {
                throw new Error("Missing mandatory system identifier for SYSTEM notation");
            }
        }

        return { notationName, publicIdentifier, systemIdentifier, index: --i };
    }

    readIdentifierVal(xmlData, i, type) {
        let identifierVal = "";
        const startChar = xmlData[i];
        if (startChar !== '"' && startChar !== "'") {
            throw new Error(`Expected quoted string, found "${startChar}"`);
        }
        i++;

        const startIndex = i;
        while (i < xmlData.length && xmlData[i] !== startChar) {
            i++;
        }
        identifierVal = xmlData.substring(startIndex, i);

        if (xmlData[i] !== startChar) {
            throw new Error(`Unterminated ${type} value`);
        }
        i++;
        return [i, identifierVal];
    }

    readElementExp(xmlData, i) {
        // <!ELEMENT br EMPTY>
        // <!ELEMENT div ANY>
        // <!ELEMENT title (#PCDATA)>
        // <!ELEMENT book (title, author+)>
        // <!ELEMENT name (content-model)>

        // Skip leading whitespace after <!ELEMENT
        i = skipWhitespace(xmlData, i);

        // Read element name
        let elementName = "";
        while (i < xmlData.length && !/\s/.test(xmlData[i])) {
            elementName += xmlData[i];
            i++;
        }

        // Validate element name
        if (!this.suppressValidationErr && !isName(elementName)) {
            throw new Error(`Invalid element name: "${elementName}"`);
        }

        // Skip whitespace after element name
        i = skipWhitespace(xmlData, i);
        let contentModel = "";
        // Expect '(' to start content model
        if (xmlData[i] === "E" && hasSeq(xmlData, "MPTY", i)) i += 4;
        else if (xmlData[i] === "A" && hasSeq(xmlData, "NY", i)) i += 2;
        else if (xmlData[i] === "(") {
            i++; // Move past '('

            // Read content model
            while (i < xmlData.length && xmlData[i] !== ")") {
                contentModel += xmlData[i];
                i++;
            }
            if (xmlData[i] !== ")") {
                throw new Error("Unterminated content model");
            }

        } else if (!this.suppressValidationErr) {
            throw new Error(`Invalid Element Expression, found "${xmlData[i]}"`);
        }

        return {
            elementName,
            contentModel: contentModel.trim(),
            index: i
        };
    }

    readAttlistExp(xmlData, i) {
        // Skip leading whitespace after <!ATTLIST
        i = skipWhitespace(xmlData, i);

        // Read element name
        let elementName = "";
        while (i < xmlData.length && !/\s/.test(xmlData[i])) {
            elementName += xmlData[i];
            i++;
        }

        // Validate element name
        validateEntityName(elementName)

        // Skip whitespace after element name
        i = skipWhitespace(xmlData, i);

        // Read attribute name
        let attributeName = "";
        while (i < xmlData.length && !/\s/.test(xmlData[i])) {
            attributeName += xmlData[i];
            i++;
        }

        // Validate attribute name
        if (!validateEntityName(attributeName)) {
            throw new Error(`Invalid attribute name: "${attributeName}"`);
        }

        // Skip whitespace after attribute name
        i = skipWhitespace(xmlData, i);

        // Read attribute type
        let attributeType = "";
        if (xmlData.substring(i, i + 8).toUpperCase() === "NOTATION") {
            attributeType = "NOTATION";
            i += 8; // Move past "NOTATION"

            // Skip whitespace after "NOTATION"
            i = skipWhitespace(xmlData, i);

            // Expect '(' to start the list of notations
            if (xmlData[i] !== "(") {
                throw new Error(`Expected '(', found "${xmlData[i]}"`);
            }
            i++; // Move past '('

            // Read the list of allowed notations
            let allowedNotations = [];
            while (i < xmlData.length && xmlData[i] !== ")") {
                let notation = "";
                while (i < xmlData.length && xmlData[i] !== "|" && xmlData[i] !== ")") {
                    notation += xmlData[i];
                    i++;
                }

                // Validate notation name
                notation = notation.trim();
                if (!validateEntityName(notation)) {
                    throw new Error(`Invalid notation name: "${notation}"`);
                }

                allowedNotations.push(notation);

                // Skip '|' separator or exit loop
                if (xmlData[i] === "|") {
                    i++; // Move past '|'
                    i = skipWhitespace(xmlData, i); // Skip optional whitespace after '|'
                }
            }

            if (xmlData[i] !== ")") {
                throw new Error("Unterminated list of notations");
            }
            i++; // Move past ')'

            // Store the allowed notations as part of the attribute type
            attributeType += " (" + allowedNotations.join("|") + ")";
        } else {
            // Handle simple types (e.g., CDATA, ID, IDREF, etc.)
            while (i < xmlData.length && !/\s/.test(xmlData[i])) {
                attributeType += xmlData[i];
                i++;
            }

            // Validate simple attribute type
            const validTypes = ["CDATA", "ID", "IDREF", "IDREFS", "ENTITY", "ENTITIES", "NMTOKEN", "NMTOKENS"];
            if (!this.suppressValidationErr && !validTypes.includes(attributeType.toUpperCase())) {
                throw new Error(`Invalid attribute type: "${attributeType}"`);
            }
        }

        // Skip whitespace after attribute type
        i = skipWhitespace(xmlData, i);

        // Read default value
        let defaultValue = "";
        if (xmlData.substring(i, i + 8).toUpperCase() === "#REQUIRED") {
            defaultValue = "#REQUIRED";
            i += 8;
        } else if (xmlData.substring(i, i + 7).toUpperCase() === "#IMPLIED") {
            defaultValue = "#IMPLIED";
            i += 7;
        } else {
            [i, defaultValue] = this.readIdentifierVal(xmlData, i, "ATTLIST");
        }

        return {
            elementName,
            attributeName,
            attributeType,
            defaultValue,
            index: i
        }
    }
}



const skipWhitespace = (data, index) => {
    while (index < data.length && /\s/.test(data[index])) {
        index++;
    }
    return index;
};



function hasSeq(data, seq, i) {
    for (let j = 0; j < seq.length; j++) {
        if (seq[j] !== data[i + j + 1]) return false;
    }
    return true;
}

function validateEntityName(name) {
    if (isName(name))
        return name;
    else
        throw new Error(`Invalid entity name ${name}`);
}

1	import { isName } from '../util.js';	5✔
2		5✔
3	export default class DocTypeReader {	5✔
4	constructor(options) {	5✔
5	this.suppressValidationErr = !options;	1,690✔
6	this.options = options;	1,690✔
7	}	1,690✔
8		5✔
9	readDocType(xmlData, i) {	5✔
10	const entities = Object.create(null);	220✔
11	let entityCount = 0;	220✔
12		220✔
13	if (xmlData[i + 3] === 'O' &&	220✔
14	xmlData[i + 4] === 'C' &&	220✔
15	xmlData[i + 5] === 'T' &&	220✔
16	xmlData[i + 6] === 'Y' &&	220✔
17	xmlData[i + 7] === 'P' &&	220✔
18	xmlData[i + 8] === 'E') {	220✔
19	i = i + 9;	220✔
20	let angleBracketsCount = 1;	220✔
21	let hasBody = false, comment = false;	220✔
22	let exp = "";	220✔
23	for (; i < xmlData.length; i++) {	220✔
24	if (xmlData[i] === '<' && !comment) { //Determine the tag type	5,885✔
25	if (hasBody && hasSeq(xmlData, "!ENTITY", i)) {	290✔
26	i += 7;	230✔
27	let entityName, val;	230✔
28	[entityName, val, i] = this.readEntityExp(xmlData, i + 1, this.suppressValidationErr);	230✔
29	if (val.indexOf("&") === -1) { //Parameter entities are not supported	230✔
30	if (this.options.enabled !== false &&	205✔
31	this.options.maxEntityCount &&	205✔
32	entityCount >= this.options.maxEntityCount) {	205!
33	throw new Error(	×
34	`Entity count (${entityCount + 1}) exceeds maximum allowed (${this.options.maxEntityCount})`	×
35	);	×
36	}	×
37	//const escaped = entityName.replace(/[.\-+*:]/g, '\\.');	205✔
38	const escaped = entityName.replace(/[.*+?^${}()\|[\]\\]/g, '\\$&');	205✔
39	entities[entityName] = {	205✔
40	regx: RegExp(`&${escaped};`, "g"),	205✔
41	val: val	205✔
42	};	205✔
43	entityCount++;	205✔
44	}	205✔
45	}	230✔
46	else if (hasBody && hasSeq(xmlData, "!ELEMENT", i)) {	60✔
47	i += 8;//Not supported	20✔
48	const { index } = this.readElementExp(xmlData, i + 1);	20✔
49	i = index;	20✔
50	} else if (hasBody && hasSeq(xmlData, "!ATTLIST", i)) {	60✔
51	i += 8;//Not supported	5✔
52	// const {index} = this.readAttlistExp(xmlData,i+1);	5✔
53	// i = index;	5✔
54	} else if (hasBody && hasSeq(xmlData, "!NOTATION", i)) {	40✔
55	i += 9;//Not supported	10✔
56	const { index } = this.readNotationExp(xmlData, i + 1, this.suppressValidationErr);	10✔
57	i = index;	10✔
58	} else if (hasSeq(xmlData, "!--", i)) comment = true;	35✔
UNCOV 59	else throw new Error(`Invalid DOCTYPE`);	×
60		270✔
61	angleBracketsCount++;	270✔
62	exp = "";	270✔
63	} else if (xmlData[i] === '>') { //Read tag content	5,885✔
64	if (comment) {	470✔
65	if (xmlData[i - 1] === "-" && xmlData[i - 2] === "-") {	30✔
66	comment = false;	25✔
67	angleBracketsCount--;	25✔
68	}	25✔
69	} else {	470✔
70	angleBracketsCount--;	440✔
71	}	440✔
72	if (angleBracketsCount === 0) {	470✔
73	break;	195✔
74	}	195✔
75	} else if (xmlData[i] === '[') {	5,595✔
76	hasBody = true;	205✔
77	} else {	5,125✔
78	exp += xmlData[i];	4,920✔
79	}	4,920✔
80	}	5,885✔
81	if (angleBracketsCount !== 0) {	220✔
82	throw new Error(`Unclosed DOCTYPE`);	5✔
83	}	5✔
84	} else {	220!
85	throw new Error(`Invalid Tag instead of DOCTYPE`);	×
UNCOV 86	}	×
87	return { entities, i };	195✔
88	}	220✔
89	readEntityExp(xmlData, i) {	5✔
90	//External entities are not supported	230✔
91	// <!ENTITY ext SYSTEM "http://normal-website.com" >	230✔
92		230✔
93	//Parameter entities are not supported	230✔
94	// <!ENTITY entityname "&anotherElement;">	230✔
95		230✔
96	//Internal entities are supported	230✔
97	// <!ENTITY entityname "replacement text">	230✔
98		230✔
99	// Skip leading whitespace after <!ENTITY	230✔
100	i = skipWhitespace(xmlData, i);	230✔
101		230✔
102	// Read entity name	230✔
103	let entityName = "";	230✔
104	while (i < xmlData.length && !/\s/.test(xmlData[i]) && xmlData[i] !== '"' && xmlData[i] !== "'") {	230✔
105	entityName += xmlData[i];	805✔
106	i++;	805✔
107	}	805✔
108	validateEntityName(entityName);	230✔
109		230✔
110	// Skip whitespace after entity name	230✔
111	i = skipWhitespace(xmlData, i);	230✔
112		230✔
113	// Check for unsupported constructs (external entities or parameter entities)	230✔
114	if (!this.suppressValidationErr) {	230✔
115	if (xmlData.substring(i, i + 6).toUpperCase() === "SYSTEM") {	225!
UNCOV 116	throw new Error("External entities are not supported");	×
117	} else if (xmlData[i] === "%") {	225!
118	throw new Error("Parameter entities are not supported");	×
UNCOV 119	}	×
120	}	225✔
121		225✔
122	// Read entity value (internal entity)	225✔
123	let entityValue = "";	225✔
124	[i, entityValue] = this.readIdentifierVal(xmlData, i, "entity");	225✔
125		225✔
126	// Validate entity size	225✔
127	if (this.options.enabled !== false &&	230✔
128	this.options.maxEntitySize &&	230✔
129	entityValue.length > this.options.maxEntitySize) {	230✔
130	throw new Error(	15✔
131	`Entity "${entityName}" size (${entityValue.length}) exceeds maximum allowed size (${this.options.maxEntitySize})`	15✔
132	);	15✔
133	}	15✔
134		210✔
135	i--;	210✔
136	return [entityName, entityValue, i];	210✔
137	}	230✔
138		5✔
139	readNotationExp(xmlData, i) {	5✔
140	// Skip leading whitespace after <!NOTATION	10✔
141	i = skipWhitespace(xmlData, i);	10✔
142		10✔
143	// Read notation name	10✔
144	let notationName = "";	10✔
145	while (i < xmlData.length && !/\s/.test(xmlData[i])) {	10✔
146	notationName += xmlData[i];	45✔
147	i++;	45✔
148	}	45✔
149	!this.suppressValidationErr && validateEntityName(notationName);	10✔
150		10✔
151	// Skip whitespace after notation name	10✔
152	i = skipWhitespace(xmlData, i);	10✔
153		10✔
154	// Check identifier type (SYSTEM or PUBLIC)	10✔
155	const identifierType = xmlData.substring(i, i + 6).toUpperCase();	10✔
156	if (!this.suppressValidationErr && identifierType !== "SYSTEM" && identifierType !== "PUBLIC") {	10!
157	throw new Error(`Expected SYSTEM or PUBLIC, found "${identifierType}"`);	×
UNCOV 158	}	×
159	i += identifierType.length;	10✔
160		10✔
161	// Skip whitespace after identifier type	10✔
162	i = skipWhitespace(xmlData, i);	10✔
163		10✔
164	// Read public identifier (if PUBLIC)	10✔
165	let publicIdentifier = null;	10✔
166	let systemIdentifier = null;	10✔
167		10✔
168	if (identifierType === "PUBLIC") {	10✔
169	[i, publicIdentifier] = this.readIdentifierVal(xmlData, i, "publicIdentifier");	10✔
170		10✔
171	// Skip whitespace after public identifier	10✔
172	i = skipWhitespace(xmlData, i);	10✔
173		10✔
174	// Optionally read system identifier	10✔
175	if (xmlData[i] === '"' \|\| xmlData[i] === "'") {	10✔
176	[i, systemIdentifier] = this.readIdentifierVal(xmlData, i, "systemIdentifier");	5✔
177	}	5✔
178	} else if (identifierType === "SYSTEM") {	10!
179	// Read system identifier (mandatory for SYSTEM)	×
180	[i, systemIdentifier] = this.readIdentifierVal(xmlData, i, "systemIdentifier");	×
181		×
182	if (!this.suppressValidationErr && !systemIdentifier) {	×
183	throw new Error("Missing mandatory system identifier for SYSTEM notation");	×
184	}	×
UNCOV 185	}	×
186		10✔
187	return { notationName, publicIdentifier, systemIdentifier, index: --i };	10✔
188	}	10✔
189		5✔
190	readIdentifierVal(xmlData, i, type) {	5✔
191	let identifierVal = "";	240✔
192	const startChar = xmlData[i];	240✔
193	if (startChar !== '"' && startChar !== "'") {	240!
194	throw new Error(`Expected quoted string, found "${startChar}"`);	×
UNCOV 195	}	×
196	i++;	240✔
197		240✔
198	const startIndex = i;	240✔
199	while (i < xmlData.length && xmlData[i] !== startChar) {	240✔
200	i++;	441,490✔
201	}	441,490✔
202	identifierVal = xmlData.substring(startIndex, i);	240✔
203		240✔
204	if (xmlData[i] !== startChar) {	240!
205	throw new Error(`Unterminated ${type} value`);	×
UNCOV 206	}	×
207	i++;	240✔
208	return [i, identifierVal];	240✔
209	}	240✔
210		5✔
211	readElementExp(xmlData, i) {	5✔
212	// <!ELEMENT br EMPTY>	20✔
213	// <!ELEMENT div ANY>	20✔
214	// <!ELEMENT title (#PCDATA)>	20✔
215	// <!ELEMENT book (title, author+)>	20✔
216	// <!ELEMENT name (content-model)>	20✔
217		20✔
218	// Skip leading whitespace after <!ELEMENT	20✔
219	i = skipWhitespace(xmlData, i);	20✔
220		20✔
221	// Read element name	20✔
222	let elementName = "";	20✔
223	while (i < xmlData.length && !/\s/.test(xmlData[i])) {	20✔
224	elementName += xmlData[i];	65✔
225	i++;	65✔
226	}	65✔
227		20✔
228	// Validate element name	20✔
229	if (!this.suppressValidationErr && !isName(elementName)) {	20!
230	throw new Error(`Invalid element name: "${elementName}"`);	×
UNCOV 231	}	×
232		20✔
233	// Skip whitespace after element name	20✔
234	i = skipWhitespace(xmlData, i);	20✔
235	let contentModel = "";	20✔
236	// Expect '(' to start content model	20✔
237	if (xmlData[i] === "E" && hasSeq(xmlData, "MPTY", i)) i += 4;	20✔
238	else if (xmlData[i] === "A" && hasSeq(xmlData, "NY", i)) i += 2;	15✔
239	else if (xmlData[i] === "(") {	10✔
240	i++; // Move past '('	10✔
241		10✔
242	// Read content model	10✔
243	while (i < xmlData.length && xmlData[i] !== ")") {	10✔
244	contentModel += xmlData[i];	70✔
245	i++;	70✔
246	}	70✔
247	if (xmlData[i] !== ")") {	10!
248	throw new Error("Unterminated content model");	×
UNCOV 249	}	×
250		10✔
251	} else if (!this.suppressValidationErr) {	10!
252	throw new Error(`Invalid Element Expression, found "${xmlData[i]}"`);	×
UNCOV 253	}	×
254		20✔
255	return {	20✔
256	elementName,	20✔
257	contentModel: contentModel.trim(),	20✔
258	index: i	20✔
259	};	20✔
260	}	20✔
261		5✔
262	readAttlistExp(xmlData, i) {	5✔
263	// Skip leading whitespace after <!ATTLIST	×
264	i = skipWhitespace(xmlData, i);	×
265		×
266	// Read element name	×
267	let elementName = "";	×
268	while (i < xmlData.length && !/\s/.test(xmlData[i])) {	×
269	elementName += xmlData[i];	×
270	i++;	×
271	}	×
272		×
273	// Validate element name	×
274	validateEntityName(elementName)	×
275		×
276	// Skip whitespace after element name	×
277	i = skipWhitespace(xmlData, i);	×
278		×
279	// Read attribute name	×
280	let attributeName = "";	×
281	while (i < xmlData.length && !/\s/.test(xmlData[i])) {	×
282	attributeName += xmlData[i];	×
283	i++;	×
284	}	×
285		×
286	// Validate attribute name	×
287	if (!validateEntityName(attributeName)) {	×
288	throw new Error(`Invalid attribute name: "${attributeName}"`);	×
289	}	×
290		×
291	// Skip whitespace after attribute name	×
292	i = skipWhitespace(xmlData, i);	×
293		×
294	// Read attribute type	×
295	let attributeType = "";	×
296	if (xmlData.substring(i, i + 8).toUpperCase() === "NOTATION") {	×
297	attributeType = "NOTATION";	×
298	i += 8; // Move past "NOTATION"	×
299		×
300	// Skip whitespace after "NOTATION"	×
301	i = skipWhitespace(xmlData, i);	×
302		×
303	// Expect '(' to start the list of notations	×
304	if (xmlData[i] !== "(") {	×
305	throw new Error(`Expected '(', found "${xmlData[i]}"`);	×
306	}	×
307	i++; // Move past '('	×
308		×
309	// Read the list of allowed notations	×
310	let allowedNotations = [];	×
311	while (i < xmlData.length && xmlData[i] !== ")") {	×
312	let notation = "";	×
313	while (i < xmlData.length && xmlData[i] !== "\|" && xmlData[i] !== ")") {	×
314	notation += xmlData[i];	×
315	i++;	×
316	}	×
317		×
318	// Validate notation name	×
319	notation = notation.trim();	×
320	if (!validateEntityName(notation)) {	×
321	throw new Error(`Invalid notation name: "${notation}"`);	×
322	}	×
323		×
324	allowedNotations.push(notation);	×
325		×
326	// Skip '\|' separator or exit loop	×
327	if (xmlData[i] === "\|") {	×
328	i++; // Move past '\|'	×
329	i = skipWhitespace(xmlData, i); // Skip optional whitespace after '\|'	×
330	}	×
331	}	×
332		×
333	if (xmlData[i] !== ")") {	×
334	throw new Error("Unterminated list of notations");	×
335	}	×
336	i++; // Move past ')'	×
337		×
338	// Store the allowed notations as part of the attribute type	×
339	attributeType += " (" + allowedNotations.join("\|") + ")";	×
340	} else {	×
341	// Handle simple types (e.g., CDATA, ID, IDREF, etc.)	×
342	while (i < xmlData.length && !/\s/.test(xmlData[i])) {	×
343	attributeType += xmlData[i];	×
344	i++;	×
345	}	×
346		×
347	// Validate simple attribute type	×
348	const validTypes = ["CDATA", "ID", "IDREF", "IDREFS", "ENTITY", "ENTITIES", "NMTOKEN", "NMTOKENS"];	×
349	if (!this.suppressValidationErr && !validTypes.includes(attributeType.toUpperCase())) {	×
350	throw new Error(`Invalid attribute type: "${attributeType}"`);	×
351	}	×
352	}	×
353		×
354	// Skip whitespace after attribute type	×
355	i = skipWhitespace(xmlData, i);	×
356		×
357	// Read default value	×
358	let defaultValue = "";	×
359	if (xmlData.substring(i, i + 8).toUpperCase() === "#REQUIRED") {	×
360	defaultValue = "#REQUIRED";	×
361	i += 8;	×
362	} else if (xmlData.substring(i, i + 7).toUpperCase() === "#IMPLIED") {	×
363	defaultValue = "#IMPLIED";	×
364	i += 7;	×
365	} else {	×
366	[i, defaultValue] = this.readIdentifierVal(xmlData, i, "ATTLIST");	×
367	}	×
368		×
369	return {	×
370	elementName,	×
371	attributeName,	×
372	attributeType,	×
373	defaultValue,	×
374	index: i	×
375	}	×
UNCOV 376	}	×
377	}	5✔
378		5✔
379		5✔
380		5✔
381	const skipWhitespace = (data, index) => {	5✔
382	while (index < data.length && /\s/.test(data[index])) {	535✔
383	index++;	540✔
384	}	540✔
385	return index;	535✔
386	};	5✔
387		5✔
388		5✔
389		5✔
390	function hasSeq(data, seq, i) {	460✔
391	for (let j = 0; j < seq.length; j++) {	460✔
392	if (seq[j] !== data[i + j + 1]) return false;	2,345✔
393	}	2,345✔
394	return true;	300✔
395	}	460✔
396		5✔
397	function validateEntityName(name) {	240✔
398	if (isName(name))	240✔
399	return name;	240✔
400	else	5✔
401	throw new Error(`Invalid entity name ${name}`);	5✔
402	}	240✔

NaturalIntelligence / fast-xml-parser / 23146869289

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