56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
|
// heading (#, ##, ...)
|
||
|
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
var isSpace = require('../common/utils').isSpace;
|
||
|
|
|
||
|
|
|
||
|
|
module.exports = function heading(state, startLine, endLine, silent) {
|
||
|
|
var ch, level, tmp, token,
|
||
|
|
pos = state.bMarks[startLine] + state.tShift[startLine],
|
||
|
|
max = state.eMarks[startLine];
|
||
|
|
|
||
|
|
// if it's indented more than 3 spaces, it should be a code block
|
||
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
|
||
|
|
|
||
|
|
ch = state.src.charCodeAt(pos);
|
||
|
|
|
||
|
|
if (ch !== 0x23/* # */ || pos >= max) { return false; }
|
||
|
|
|
||
|
|
// count heading level
|
||
|
|
level = 1;
|
||
|
|
ch = state.src.charCodeAt(++pos);
|
||
|
|
while (ch === 0x23/* # */ && pos < max && level <= 6) {
|
||
|
|
level++;
|
||
|
|
ch = state.src.charCodeAt(++pos);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (level > 6 || (pos < max && !isSpace(ch))) { return false; }
|
||
|
|
|
||
|
|
if (silent) { return true; }
|
||
|
|
|
||
|
|
// Let's cut tails like ' ### ' from the end of string
|
||
|
|
|
||
|
|
max = state.skipSpacesBack(max, pos);
|
||
|
|
tmp = state.skipCharsBack(max, 0x23, pos); // #
|
||
|
|
if (tmp > pos && isSpace(state.src.charCodeAt(tmp - 1))) {
|
||
|
|
max = tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
state.line = startLine + 1;
|
||
|
|
|
||
|
|
token = state.push('heading_open', 'h' + String(level), 1);
|
||
|
|
token.markup = '########'.slice(0, level);
|
||
|
|
token.map = [ startLine, state.line ];
|
||
|
|
|
||
|
|
token = state.push('inline', '', 0);
|
||
|
|
token.content = state.src.slice(pos, max).trim();
|
||
|
|
token.map = [ startLine, state.line ];
|
||
|
|
token.children = [];
|
||
|
|
|
||
|
|
token = state.push('heading_close', 'h' + String(level), -1);
|
||
|
|
token.markup = '########'.slice(0, level);
|
||
|
|
|
||
|
|
return true;
|
||
|
|
};
|