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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/markdown-it/lib/rules_block/table.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
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Diffstat (limited to 'node_modules/markdown-it/lib/rules_block/table.js')
| -rw-r--r-- | node_modules/markdown-it/lib/rules_block/table.js | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/node_modules/markdown-it/lib/rules_block/table.js b/node_modules/markdown-it/lib/rules_block/table.js new file mode 100644 index 00000000..16ae20f8 --- /dev/null +++ b/node_modules/markdown-it/lib/rules_block/table.js @@ -0,0 +1,196 @@ +// GFM table, non-standard + +'use strict'; + +var isSpace = require('../common/utils').isSpace; + + +function getLine(state, line) { + var pos = state.bMarks[line] + state.blkIndent, + max = state.eMarks[line]; + + return state.src.substr(pos, max - pos); +} + +function escapedSplit(str) { + var result = [], + pos = 0, + max = str.length, + ch, + escapes = 0, + lastPos = 0, + backTicked = false, + lastBackTick = 0; + + ch = str.charCodeAt(pos); + + while (pos < max) { + if (ch === 0x60/* ` */) { + if (backTicked) { + // make \` close code sequence, but not open it; + // the reason is: `\` is correct code block + backTicked = false; + lastBackTick = pos; + } else if (escapes % 2 === 0) { + backTicked = true; + lastBackTick = pos; + } + } else if (ch === 0x7c/* | */ && (escapes % 2 === 0) && !backTicked) { + result.push(str.substring(lastPos, pos)); + lastPos = pos + 1; + } + + if (ch === 0x5c/* \ */) { + escapes++; + } else { + escapes = 0; + } + + pos++; + + // If there was an un-closed backtick, go back to just after + // the last backtick, but as if it was a normal character + if (pos === max && backTicked) { + backTicked = false; + pos = lastBackTick + 1; + } + + ch = str.charCodeAt(pos); + } + + result.push(str.substring(lastPos)); + + return result; +} + + +module.exports = function table(state, startLine, endLine, silent) { + var ch, lineText, pos, i, nextLine, columns, columnCount, token, + aligns, t, tableLines, tbodyLines; + + // should have at least two lines + if (startLine + 2 > endLine) { return false; } + + nextLine = startLine + 1; + + if (state.sCount[nextLine] < state.blkIndent) { return false; } + + // if it's indented more than 3 spaces, it should be a code block + if (state.sCount[nextLine] - state.blkIndent >= 4) { return false; } + + // first character of the second line should be '|', '-', ':', + // and no other characters are allowed but spaces; + // basically, this is the equivalent of /^[-:|][-:|\s]*$/ regexp + + pos = state.bMarks[nextLine] + state.tShift[nextLine]; + if (pos >= state.eMarks[nextLine]) { return false; } + + ch = state.src.charCodeAt(pos++); + if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */) { return false; } + + while (pos < state.eMarks[nextLine]) { + ch = state.src.charCodeAt(pos); + + if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */ && !isSpace(ch)) { return false; } + + pos++; + } + + lineText = getLine(state, startLine + 1); + + columns = lineText.split('|'); + aligns = []; + for (i = 0; i < columns.length; i++) { + t = columns[i].trim(); + if (!t) { + // allow empty columns before and after table, but not in between columns; + // e.g. allow ` |---| `, disallow ` ---||--- ` + if (i === 0 || i === columns.length - 1) { + continue; + } else { + return false; + } + } + + if (!/^:?-+:?$/.test(t)) { return false; } + if (t.charCodeAt(t.length - 1) === 0x3A/* : */) { + aligns.push(t.charCodeAt(0) === 0x3A/* : */ ? 'center' : 'right'); + } else if (t.charCodeAt(0) === 0x3A/* : */) { + aligns.push('left'); + } else { + aligns.push(''); + } + } + + lineText = getLine(state, startLine).trim(); + if (lineText.indexOf('|') === -1) { return false; } + if (state.sCount[startLine] - state.blkIndent >= 4) { return false; } + columns = escapedSplit(lineText.replace(/^\||\|$/g, '')); + + // header row will define an amount of columns in the entire table, + // and align row shouldn't be smaller than that (the rest of the rows can) + columnCount = columns.length; + if (columnCount > aligns.length) { return false; } + + if (silent) { return true; } + + token = state.push('table_open', 'table', 1); + token.map = tableLines = [ startLine, 0 ]; + + token = state.push('thead_open', 'thead', 1); + token.map = [ startLine, startLine + 1 ]; + + token = state.push('tr_open', 'tr', 1); + token.map = [ startLine, startLine + 1 ]; + + for (i = 0; i < columns.length; i++) { + token = state.push('th_open', 'th', 1); + token.map = [ startLine, startLine + 1 ]; + if (aligns[i]) { + token.attrs = [ [ 'style', 'text-align:' + aligns[i] ] ]; + } + + token = state.push('inline', '', 0); + token.content = columns[i].trim(); + token.map = [ startLine, startLine + 1 ]; + token.children = []; + + token = state.push('th_close', 'th', -1); + } + + token = state.push('tr_close', 'tr', -1); + token = state.push('thead_close', 'thead', -1); + + token = state.push('tbody_open', 'tbody', 1); + token.map = tbodyLines = [ startLine + 2, 0 ]; + + for (nextLine = startLine + 2; nextLine < endLine; nextLine++) { + if (state.sCount[nextLine] < state.blkIndent) { break; } + + lineText = getLine(state, nextLine).trim(); + if (lineText.indexOf('|') === -1) { break; } + if (state.sCount[nextLine] - state.blkIndent >= 4) { break; } + columns = escapedSplit(lineText.replace(/^\||\|$/g, '')); + + token = state.push('tr_open', 'tr', 1); + for (i = 0; i < columnCount; i++) { + token = state.push('td_open', 'td', 1); + if (aligns[i]) { + token.attrs = [ [ 'style', 'text-align:' + aligns[i] ] ]; + } + + token = state.push('inline', '', 0); + token.content = columns[i] ? columns[i].trim() : ''; + token.children = []; + + token = state.push('td_close', 'td', -1); + } + token = state.push('tr_close', 'tr', -1); + } + token = state.push('tbody_close', 'tbody', -1); + token = state.push('table_close', 'table', -1); + + tableLines[1] = tbodyLines[1] = nextLine; + state.line = nextLine; + return true; +}; |
