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// Horizontal rule
'use strict';
var isWhiteSpace = require('../helpers').isWhiteSpace;
module.exports = function hr(state, startLine, endLine, silent) {
var marker, cnt, ch,
pos = state.bMarks[startLine],
max = state.eMarks[startLine];
// should not have > 3 leading spaces
if (state.tShift[startLine] > 3) { return false; }
pos += state.tShift[startLine];
if (pos > max) { return false; }
marker = state.src.charCodeAt(pos++);
// Check hr marker
if (marker !== 0x2A/* * */ &&
marker !== 0x2D/* - */ &&
marker !== 0x5F/* _ */) {
return false;
}
// markers can be mixed with spaces, but there should be at least 3 one
cnt = 1;
while (pos < max) {
ch = state.src.charCodeAt(pos++);
if (ch !== marker && !isWhiteSpace(ch)) { return false; }
if (ch === marker) { cnt++; }
}
if (cnt < 3) { return false; }
if (silent) { return true; }
state.tokens.push({ type: 'hr' });
state.line = startLine + 1;
return true;
};