128 lines
2.8 KiB
JavaScript
128 lines
2.8 KiB
JavaScript
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"use strict";
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const reNewLine = /(?:\r?\n|\r)/gm;
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const Input = require("postcss/lib/input");
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const Document = require("./document");
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const getSyntax = require("./get-syntax");
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const patch = require("./patch-postcss");
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class LocalFixer {
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constructor (lines, style) {
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let line = 0;
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let column = style.startIndex;
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lines.some((lineEndIndex, lineNumber) => {
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if (lineEndIndex >= style.startIndex) {
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line = lineNumber--;
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if (lineNumber in lines) {
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column = style.startIndex - lines[lineNumber] - 1;
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}
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return true;
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}
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});
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this.line = line;
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this.column = column;
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this.style = style;
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}
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object (object) {
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if (object) {
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if (object.line === 1) {
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object.column += this.column;
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}
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object.line += this.line;
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}
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}
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node (node) {
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this.object(node.source.start);
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this.object(node.source.end);
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}
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root (root) {
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this.node(root);
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root.walk(node => {
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this.node(node);
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});
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}
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error (error) {
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if (error && error.name === "CssSyntaxError") {
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this.object(error);
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this.object(error.input);
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error.message = error.message.replace(/:\d+:\d+:/, ":" + error.line + ":" + error.column + ":");
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}
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return error;
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}
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parse (opts) {
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const style = this.style;
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const syntax = style.syntax || getSyntax(style.lang, opts);
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let root = style.root;
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try {
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root = syntax.parse(style.content, Object.assign({}, opts, {
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map: false,
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}, style.opts));
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} catch (error) {
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if (style.ignoreErrors) {
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return;
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} else if (!style.skipConvert) {
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this.error(error);
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}
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throw error;
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}
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if (!style.skipConvert) {
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this.root(root);
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}
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root.source.inline = Boolean(style.inline);
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root.source.lang = style.lang;
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root.source.syntax = syntax;
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return root;
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}
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}
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function docFixer (source, opts) {
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let match;
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const lines = [];
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reNewLine.lastIndex = 0;
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while ((match = reNewLine.exec(source))) {
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lines.push(match.index);
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}
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lines.push(source.length);
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return function parseStyle (style) {
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return new LocalFixer(lines, style).parse(opts);
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};
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}
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function parseStyle (source, opts, styles) {
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patch(Document);
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const document = new Document();
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let index = 0;
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if (styles.length) {
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const parseStyle = docFixer(source, opts);
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styles.sort((a, b) => (
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a.startIndex - b.startIndex
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)).forEach(style => {
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const root = parseStyle(style);
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if (root) {
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root.raws.beforeStart = source.slice(index, style.startIndex);
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if (style.endIndex) {
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index = style.endIndex;
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} else {
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index = style.startIndex + (style.content || root.source.input.css).length;
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}
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root.document = document;
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document.nodes.push(root);
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}
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});
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}
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document.raws.afterEnd = index ? source.slice(index) : source;
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document.source = {
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input: new Input(source, opts),
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start: {
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line: 1,
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column: 1,
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},
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opts,
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};
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return document;
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}
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module.exports = parseStyle;
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