52 lines
1.6 KiB
JavaScript
52 lines
1.6 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.XmlError = void 0;
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/**
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* An error that occurred while parsing XML.
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*/
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class XmlError extends Error {
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constructor(message, charIndex, xml) {
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let column = 1;
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let excerpt = '';
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let line = 1;
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// Find the line and column where the error occurred.
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for (let i = 0; i < charIndex; ++i) {
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let char = xml[i];
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if (char === '\n') {
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column = 1;
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excerpt = '';
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line += 1;
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}
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else {
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column += 1;
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excerpt += char;
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}
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}
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let eol = xml.indexOf('\n', charIndex);
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excerpt += eol === -1
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? xml.slice(charIndex)
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: xml.slice(charIndex, eol);
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let excerptStart = 0;
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// Keep the excerpt below 50 chars, but always keep the error position in
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// view.
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if (excerpt.length > 50) {
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if (column < 40) {
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excerpt = excerpt.slice(0, 50);
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}
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else {
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excerptStart = column - 20;
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excerpt = excerpt.slice(excerptStart, column + 30);
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}
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}
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super(`${message} (line ${line}, column ${column})\n`
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+ ` ${excerpt}\n`
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+ ' '.repeat(column - excerptStart + 1) + '^\n');
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this.column = column;
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this.excerpt = excerpt;
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this.line = line;
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this.name = 'XmlError';
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this.pos = charIndex;
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}
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}
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exports.XmlError = XmlError;
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//# sourceMappingURL=XmlError.js.map
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