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87 lines
2.6 KiB
87 lines
2.6 KiB
// Block quotes
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'use strict';
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var skipEmptyLines = require('../helpers').skipEmptyLines;
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var skipSpaces = require('../helpers').skipSpaces;
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var getLines = require('../helpers').getLines;
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module.exports = function blockquote(state, startLine, endLine, silent) {
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var marker, nextLine, oldBMarks, lastLineEmpty, subState,
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rules_named = state.lexerBlock.rules_named,
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pos = state.bMarks[startLine] + state.tShift[startLine],
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max = state.eMarks[startLine];
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// should not have > 3 leading spaces
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if (state.tShift[startLine] > 3) { return false; }
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if (pos > max) { return false; }
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// check the block quote marker
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if (state.src.charCodeAt(pos++) !== 0x3E/* > */) { return false; }
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// we know that it's going to be a valid blockquote,
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// so no point trying to find the end of it in silent mode
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if (silent) { return true; }
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// check if we have an empty blockquote
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pos = pos < max ? skipSpaces(state, pos) : pos;
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lastLineEmpty = pos >= max;
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// Search the end of the block
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//
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// Block ends with either:
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// 1. an empty line outside:
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// ```
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// > test
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//
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// ```
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// 2. an empty line inside:
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// ```
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// >
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// test
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// ```
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// 3. another tag
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// ```
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// > test
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// - - -
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// ```
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for (nextLine = startLine + 1; nextLine < endLine; nextLine++) {
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pos = state.bMarks[nextLine] + state.tShift[nextLine];
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max = state.eMarks[nextLine];
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if (pos >= max) {
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// Case 1: line is not inside the blockquote, and this line is empty.
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break;
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}
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if (state.src.charCodeAt(pos++) === 0x3E/* > */) {
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// This line is inside the blockquote.
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pos = pos < max ? skipSpaces(state, pos) : pos;
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lastLineEmpty = pos >= max;
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continue;
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}
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// Case 2: line is not inside the blockquote, and the last line was empty.
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if (lastLineEmpty) { break; }
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// Case 3: another tag found.
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if (rules_named.fences(state, nextLine, endLine, true)) { break; }
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if (rules_named.hr(state, nextLine, endLine, true)) { break; }
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if (rules_named.list(state, nextLine, endLine, true)) { break; }
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if (rules_named.heading(state, nextLine, endLine, true)) { break; }
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if (rules_named.lheading(state, nextLine, endLine, true)) { break; }
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}
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state.tokens.push({ type: 'blockquote_open' });
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subState = state.clone(getLines(state, startLine, nextLine, true).replace(/^ {0,3}> ?/mg, ''));
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state.lexerBlock.tokenize(subState, 0, subState.lineMax);
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state.tokens.push({ type: 'blockquote_close' });
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state.line = skipEmptyLines(state, nextLine);
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return true;
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};
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