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runtime(colors): color names in the v:colornames dict should be lower cased

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Vim will lookup color names from the v:colornames dictionary by its
lower case color name. So when sourcing the v:colornames dictionary,
make sure to convert upper case color names to lower case.

Also, while at it, mention in the documentation, that the dictionary
should contain lower case names only.

fixes: #13976
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2024-02-05 10:30:01 +01:00
parent de7f5bde6c
commit 0f4054feb6
4 changed files with 35 additions and 9 deletions
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13
runtime/doc/eval.txt
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@ -1,4 +1,4 @@
*eval.txt* For Vim version 9.1. Last change: 2024 Jan 14
*eval.txt* For Vim version 9.1. Last change: 2024 Feb 05
VIM REFERENCE MANUAL by Bram Moolenaar
@ -2005,9 +2005,14 @@ v:collate The current locale setting for collation order of the runtime
*v:colornames*
v:colornames A dictionary that maps color names to hex color strings. These
color names can be used with the |highlight-guifg|,
|highlight-guibg|, and |highlight-guisp| parameters. Updating
an entry in v:colornames has no immediate effect on the syntax
highlighting. The highlight commands (probably in a
|highlight-guibg|, and |highlight-guisp| parameters.
The key values in the dictionary (the color names) should be
lower cased, because Vim looks up a color by its lower case
name.
Updating an entry in v:colornames has no immediate effect on
the syntax highlighting. The highlight commands (probably in a
colorscheme script) need to be re-evaluated in order to use
the updated color values. For example: >