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mirror of https://github.com/vim/vim.git synced 2025-07-26 11:04:33 -04:00
Aliaksei Budavei 4052474a1b
runtime(java): Recognise non-ASCII identifiers (#14543)
* runtime(java): Recognise non-ASCII identifiers

Also:

- Remove the already commented out and less general in its
  definition javaFuncDef alternative.

- Stop recognising some bespoke {p,trace} debugging API.

Non-ASCII identifiers have been supported from the outset
of the Java language.

> An _identifier_ is an unlimited-length sequence of _Java
> letters_ and _Java digits_, the first of which must be a
> Java letter.  An identifier cannot have the same spelling
> (Unicode character sequence) as a keyword . . . Boolean
> literal . . . or the null literal . . .
> . . . . . . . .
> Letters and digits may be drawn from the entire Unicode
> character set . . .
> . . . . . . . .
> A Java letter is a character for which the method
> Character.isJavaLetter . . . returns true.  A Java
> letter-or-digit is a character for which the method
> Character.isJavaLetterOrDigit . . . returns true.
> . . . . . . . .
> The Java letters include . . . for historical reasons, the
> ASCII underscore (_) . . . and dollar sign ($) . . .

(Separate syntax tests will be written when particular parts
now touched will have been further improved.)

Reference:
https://javaalmanac.io/jdk/1.0/langspec.pdf [§3.8]

* Take on the maintenance of Java filetype and syntax files


Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2024-04-14 18:57:00 +02:00
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The ftplugin directory is for Vim plugin scripts that are only used for a
specific filetype.

All files ending in .vim in this directory and subdirectories will be sourced
by Vim when it detects the filetype that matches the name of the file or
subdirectory.
For example, these are all loaded for the "c" filetype:

	c.vim
	c_extra.vim
	c/settings.vim

Note that the "_" in "c_extra.vim" is required to separate the filetype name
from the following arbitrary name.

The filetype plugins are only loaded when the ":filetype plugin" command has
been used.

The default filetype plugin files contain settings that 95% of the users will
want to use.  They do not contain personal preferences, like the value of
'shiftwidth'.

If you want to do additional settings, or overrule the default filetype
plugin, you can create your own plugin file.  See ":help ftplugin" in Vim.