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Make No Empty Line Required Before GFM Tables #2298

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Merged
merged 4 commits into from
Nov 25, 2021
Merged

Make No Empty Line Required Before GFM Tables #2298

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9f95255
fix: gfm table requires leading empty line
EmmetZC Nov 22, 2021
ed875bf
test(gfm/table): add some test cases
EmmetZC Nov 22, 2021
1f260a9
revert changes to `gfm.0.29.json`
EmmetZC Nov 23, 2021
05417a1
test(gfm/table): add `table_following_text` testcase
EmmetZC Nov 23, 2021
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fix: gfm table requires leading empty line
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@EmmetZC
EmmetZC committed Nov 22, 2021
commit 9f95255f84bf024cc8a060e14fa7d47b5942eeaf
14 changes: 13 additions & 1 deletion src/rules.js
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@ export const block = {
lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
// regex template, placeholders will be replaced according to different paragraph
// interruption rules of commonmark and the original markdown spec:
_paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html| +\n)[^\n]+)*)/,
_paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html|table| +\n)[^\n]+)*)/,
text: /^[^\n]+/
};

Expand Down Expand Up @@ -69,6 +69,7 @@ block.paragraph = edit(block._paragraph)
.replace('hr', block.hr)
.replace('heading', ' {0,3}#{1,6} ')
.replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs
.replace('|table', '')
.replace('blockquote', ' {0,3}>')
.replace('fences', ' {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n')
.replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
Expand Down Expand Up @@ -107,6 +108,17 @@ block.gfm.table = edit(block.gfm.table)
.replace('tag', block._tag) // tables can be interrupted by type (6) html blocks
.getRegex();

block.gfm.paragraph = edit(block._paragraph)
.replace('hr', block.hr)
.replace('heading', ' {0,3}#{1,6} ')
.replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs
.replace('table', block.gfm.table) // interrupt paragraphs with table
.replace('blockquote', ' {0,3}>')
.replace('fences', ' {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n')
.replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
.replace('html', '</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|textarea|!--)')
.replace('tag', block._tag) // pars can be interrupted by type (6) html blocks
.getRegex();
/**
* Pedantic grammar (original John Gruber's loose markdown specification)
*/
Expand Down