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Syntax: Stricter italic match: match '_that_' not 'a_ that _a'

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See: https://github.github.com/gfm/#emphasis-and-strong-emphasis

`A single * character can open emphasis iff (if and only if) it is part of a left-flanking delimiter run.`

Tim Pope default is too permissive (leads to too much emphasis openener): `\S\@<=_\|_\S\@=` -> `_\S\@=`
This commit is contained in:
Tinmarino
2020-08-08 16:51:28 -04:00
parent 21c5a7f796
commit a1f1b9c290
3 changed files with 33 additions and 22 deletions
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32
test/syntax.vader
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@ -4,6 +4,24 @@
# 1 Typeface {{{1
#################
# Emphasis stricker {{{2
# See: https://github.github.com/gfm/#emphasis-and-strong-emphasis
Given vimwiki (Emphasis and not):
this __bold__ ok
this _italic_ ok
t__ no bold __ t
t_ no ital _ t
Execute (Set syntax markdown):
call SetSyntax('markdown')
Execute (Assert Syntax extended types x 1):
AssertEqual 'VimwikiBold' , SyntaxAt(1, 9)
AssertEqual 'VimwikiItalic' , SyntaxAt(2, 9)
AssertEqual '' , SyntaxAt(3, 9)
AssertEqual '' , SyntaxAt(4, 9)
# With vimwiki_hl_cb_checked {{{2
Given vimwiki (task list with code):
@ -102,17 +120,17 @@ Given vimwiki (Basic Types nested in extended):
From ,,sub to _italic with en_ aaaaaaa,, morF
From $eq to **boldboldboldbo** aaaaaaaaa $
From ^super t *italic aaaaaaa*aaaaaaaaaaaaaaaaaaaaa
From ~~strike__ bbbbbbbbbbbbb__ssssssssssssssssss~~
From ~~strike__bbbbbbbbbbbbb__ssssssssssssssssss~~
Execute (Set syntax markdown):
call SetSyntax('markdown')
Execute (Assert Syntax basic types nested in extended):
AssertEqual 'VimwikiBold' , SyntaxAt(1, 23)
AssertEqual 'VimwikiItalic' , SyntaxAt(2, 23)
AssertEqual 'textSnipTEX' , SyntaxAt(3, 23)
AssertEqual 'VimwikiItalic' , SyntaxAt(4, 23)
AssertEqual 'VimwikiBold' , SyntaxAt(5, 23)
Execute (Assert Syntax basic types nested in extended):
AssertEqual 'VimwikiBold1' , SyntaxAt(1, 23) . 1
AssertEqual 'VimwikiItalic2' , SyntaxAt(2, 23) . 2
AssertEqual 'textSnipTEX3' , SyntaxAt(3, 23) . 3
AssertEqual 'VimwikiItalic4' , SyntaxAt(4, 23) . 4
AssertEqual 'VimwikiBold5' , SyntaxAt(5, 23) . 5
Given vimwiki (Try to nest in code):
From `codeto__no onenest in code__ end`