Gustavo Santos
e322cec92b
git-subtree-dir: coordenador git-subtree-mainline:facbe2e340git-subtree-split:ce7af94d55
59 lines
1.6 KiB
JavaScript
59 lines
1.6 KiB
JavaScript
const NAMED_ENTITIES = {
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' ': ' ',
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'&': '&',
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'<': '<',
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'>': '>',
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'"': '"',
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''': "'",
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''': "'",
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};
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const MAX_DECODE_ITERATIONS = 5;
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function decodeEntitiesOnce(text) {
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let result = text.replace(/&#(\d+);/g, (match, code) => {
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const num = Number(code);
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return Number.isFinite(num) ? String.fromCodePoint(num) : match;
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});
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result = result.replace(/&#x([0-9a-fA-F]+);/g, (match, hex) => {
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const num = parseInt(hex, 16);
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return Number.isFinite(num) ? String.fromCodePoint(num) : match;
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});
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for (const [entity, char] of Object.entries(NAMED_ENTITIES)) {
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result = result.split(entity).join(char);
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}
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return result;
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}
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function stripHtmlTags(text) {
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return text.replace(/<[^>]*>/g, ' ');
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}
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// Decodifica HTML/entities (inclusive escapado multiplas vezes, ate MAX_DECODE_ITERATIONS
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// para nunca travar em loop) e remove tags -- sem apagar informacao (datas, nomes, numeros,
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// codigos de erro, hostname, versao continuam intactos: nenhuma dessas regras mexe em texto
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// que nao seja literalmente uma entidade HTML ou uma tag).
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function normalizeGlpiText(rawText) {
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if (rawText === null || rawText === undefined) return '';
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let text = String(rawText);
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for (let i = 0; i < MAX_DECODE_ITERATIONS; i += 1) {
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const decoded = decodeEntitiesOnce(text);
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if (decoded === text) break;
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text = decoded;
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}
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text = stripHtmlTags(text);
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text = text
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.split('\n')
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.map((line) => line.replace(/[ \t]+/g, ' ').trim())
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.join('\n')
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.replace(/\n{3,}/g, '\n\n')
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.trim();
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return text;
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}
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module.exports = { normalizeGlpiText, decodeEntitiesOnce, stripHtmlTags };
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