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53 lines
1.1 KiB
53 lines
1.1 KiB
// Proceess escaped chars and hardbreaks
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'use strict';
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var isSpace = require('../common/utils').isSpace;
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var ESCAPED = [];
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for (var i = 0; i < 256; i++) { ESCAPED.push(0); }
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'\\!"#$%&\'()*+,./:;<=>?@[]^_`{|}~-'
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.split('').forEach(function (ch) { ESCAPED[ch.charCodeAt(0)] = 1; });
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module.exports = function escape(state, silent) {
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var ch, pos = state.pos, max = state.posMax;
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if (state.src.charCodeAt(pos) !== 0x5C/* \ */) { return false; }
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pos++;
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if (pos < max) {
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ch = state.src.charCodeAt(pos);
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if (ch < 256 && ESCAPED[ch] !== 0) {
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if (!silent) { state.pending += state.src[pos]; }
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state.pos += 2;
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return true;
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}
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if (ch === 0x0A) {
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if (!silent) {
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state.push('hardbreak', 'br', 0);
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}
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pos++;
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// skip leading whitespaces from next line
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while (pos < max) {
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ch = state.src.charCodeAt(pos);
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if (!isSpace(ch)) { break; }
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pos++;
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}
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state.pos = pos;
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return true;
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}
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}
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if (!silent) { state.pending += '\\'; }
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state.pos++;
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return true;
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};
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