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annotate runtime/import/dist/vimhelp.vim @ 28837:64c3323117b4 v8.2.4942

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patch 8.2.4942: error when setting 'filetype' in help file again Commit: https://github.com/vim/vim/commit/de216732d45caa87e6f08f4319aa71e805a89a0e Author: Bram Moolenaar <Bram@vim.org> Date: Thu May 12 17:24:49 2022 +0100 patch 8.2.4942: error when setting 'filetype' in help file again Problem: Error when setting 'filetype' in help file again. Solution: Deal with text property type already existing. (closes https://github.com/vim/vim/issues/10409)
author Bram Moolenaar <Bram@vim.org>
date Thu, 12 May 2022 18:30:05 +0200
parents db38dab0e525
children c58baa6d6dda
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 vim9script
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2
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3 # Extra functionality for displaying Vim help .
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4
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5 # Called when editing the doc/syntax.txt file
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6 export def HighlightGroups()
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7 var buf: number = bufnr('%')
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8 var lnum: number = search('\*highlight-groups\*', 'cn')
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9 while getline(lnum) !~ '===' && lnum < line('$')
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10 var word: string = getline(lnum)->matchstr('^\w\+\ze\t')
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11 if word->hlexists()
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12 var name = 'help-hl-' .. word
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13 if prop_type_list({bufnr: buf})->match(name) == -1
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14 prop_type_add('help-hl-' .. word, {
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15 bufnr: buf,
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16 highlight: word,
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17 combine: false,
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18 })
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19 else
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20 # was called before, delete existing properties
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21 prop_remove({type: name, bufnr: buf})
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22 endif
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23 prop_add(lnum, 1, {length: word->strlen(), type: 'help-hl-' .. word})
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24 endif
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25 ++lnum
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26 endwhile
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27 enddef