75 lines
2.2 KiB
JavaScript
75 lines
2.2 KiB
JavaScript
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// HTML block
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'use strict';
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var block_names = require('../common/html_blocks');
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var HTML_OPEN_CLOSE_TAG_RE = require('../common/html_re').HTML_OPEN_CLOSE_TAG_RE;
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// An array of opening and corresponding closing sequences for html tags,
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// last argument defines whether it can terminate a paragraph or not
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//
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var HTML_SEQUENCES = [
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[ /^<(script|pre|style|textarea)(?=(\s|>|$))/i, /<\/(script|pre|style|textarea)>/i, true ],
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[ /^<!--/, /-->/, true ],
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[ /^<\?/, /\?>/, true ],
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[ /^<![A-Z]/, />/, true ],
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[ /^<!\[CDATA\[/, /\]\]>/, true ],
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[ new RegExp('^</?(' + block_names.join('|') + ')(?=(\\s|/?>|$))', 'i'), /^$/, true ],
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[ new RegExp(HTML_OPEN_CLOSE_TAG_RE.source + '\\s*$'), /^$/, false ]
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];
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module.exports = function html_block(state, startLine, endLine, silent) {
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var i, nextLine, token, lineText,
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pos = state.bMarks[startLine] + state.tShift[startLine],
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max = state.eMarks[startLine];
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// if it's indented more than 3 spaces, it should be a code block
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if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
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if (!state.md.options.html) { return false; }
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if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }
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lineText = state.src.slice(pos, max);
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for (i = 0; i < HTML_SEQUENCES.length; i++) {
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if (HTML_SEQUENCES[i][0].test(lineText)) { break; }
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}
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if (i === HTML_SEQUENCES.length) { return false; }
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if (silent) {
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// true if this sequence can be a terminator, false otherwise
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return HTML_SEQUENCES[i][2];
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}
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nextLine = startLine + 1;
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// If we are here - we detected HTML block.
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// Let's roll down till block end.
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if (!HTML_SEQUENCES[i][1].test(lineText)) {
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for (; nextLine < endLine; nextLine++) {
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if (state.sCount[nextLine] < state.blkIndent) { break; }
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pos = state.bMarks[nextLine] + state.tShift[nextLine];
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max = state.eMarks[nextLine];
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lineText = state.src.slice(pos, max);
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if (HTML_SEQUENCES[i][1].test(lineText)) {
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if (lineText.length !== 0) { nextLine++; }
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break;
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}
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}
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}
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state.line = nextLine;
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token = state.push('html_block', '', 0);
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token.map = [ startLine, nextLine ];
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token.content = state.getLines(startLine, nextLine, state.blkIndent, true);
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return true;
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};
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