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// Block quotes
'use strict';
var skipSpaces = require('../helpers').skipSpaces;
module.exports = function blockquote(state, startLine, endLine, silent) {
var nextLine, lastLineEmpty, oldTShift, oldBMarks, i, oldIndent, oldListMode,
rules_named = state.lexer.rules_named,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
if (pos > max) { return false; }
// check the block quote marker
if (state.src.charCodeAt(pos++) !== 0x3E/* > */) { return false; }
// we know that it's going to be a valid blockquote,
// so no point trying to find the end of it in silent mode
if (silent) { return true; }
// skip one optional space after '>'
if (state.src.charCodeAt(pos) === 0x20) { pos++; }
state.bqMarks[startLine]++;
state.bqLevel++;
oldIndent = state.blkIndent;
state.blkIndent = 0;
oldBMarks = [ state.bMarks[startLine] ];
state.bMarks[startLine] = pos;
// check if we have an empty blockquote
pos = pos < max ? skipSpaces(state, pos) : pos;
lastLineEmpty = pos >= max;
oldTShift = [ state.tShift[startLine] ];
state.tShift[startLine] = pos - state.bMarks[startLine];
// Search the end of the block
//
// Block ends with either:
// 1. an empty line outside:
// ```
// > test
//
// ```
// 2. an empty line inside:
// ```
// >
// test
// ```
// 3. another tag
// ```
// > test
// - - -
// ```
for (nextLine = startLine + 1; nextLine < endLine; nextLine++) {
pos = state.bMarks[nextLine] + state.tShift[nextLine];
max = state.eMarks[nextLine];
if (pos >= max) {
// Case 1: line is not inside the blockquote, and this line is empty.
break;
}
if (state.src.charCodeAt(pos++) === 0x3E/* > */) {
state.bqMarks[nextLine]++;
// This line is inside the blockquote.
// skip one optional space after '>'
if (state.src.charCodeAt(pos) === 0x20) { pos++; }
oldBMarks.push(state.bMarks[nextLine]);
state.bMarks[nextLine] = pos;
pos = pos < max ? skipSpaces(state, pos) : pos;
lastLineEmpty = pos >= max;
oldTShift.push(state.tShift[nextLine]);
state.tShift[nextLine] = pos - state.bMarks[nextLine];
continue;
}
// Case 2: line is not inside the blockquote, and the last line was empty.
if (lastLineEmpty) { break; }
// Case 3: another tag found.
if (rules_named.fences(state, nextLine, endLine, true)) { break; }
if (rules_named.hr(state, nextLine, endLine, true)) { break; }
if (rules_named.list(state, nextLine, endLine, true)) { break; }
if (rules_named.heading(state, nextLine, endLine, true)) { break; }
// setex header can't interrupt paragraph
// if (rules_named.lheading(state, nextLine, endLine, true)) { break; }
if (rules_named.blockquote(state, nextLine, endLine, true)) { break; }
if (rules_named.table(state, nextLine, endLine, true)) { break; }
//if (rules_named.tag(state, nextLine, endLine, true)) { break; }
//if (rules_named.def(state, nextLine, endLine, true)) { break; }
oldBMarks.push(state.bMarks[nextLine]);
oldTShift.push(state.tShift[nextLine]);
}
oldListMode = state.listMode;
state.listMode = false;
state.tokens.push({ type: 'blockquote_open' });
state.lexer.tokenize(state, startLine, nextLine);
state.tokens.push({ type: 'blockquote_close' });
state.listMode = oldListMode;
// Restore original tShift; this might not be necessary since the parser
// has already been here, but just to make sure we can do that.
for (i = 0; i < oldTShift.length; i++) {
state.bMarks[i + startLine] = oldBMarks[i];
state.tShift[i + startLine] = oldTShift[i];
}
state.bqLevel--;
state.blkIndent = oldIndent;
return true;
};