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vim-patch:8.2.1741: pathshorten() only supports using one character

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Problem:    pathshorten() only supports using one character.
Solution:   Add an argument to control the length. (closes vim/vim#7006)
6a33ef0deb

Cherry-pick a line in test from patch 8.2.0634.
Use Nvim's config paths in docs.

shorten_dir() returning a pointer looks a bit confusing here, as it is
actually the same pointer passed to it, and it doesn't really reduce
much code, so change it back to void.

Assigning rettv->vval.v_string = NULL is not needed if a pointer is
within 64 bits. While this is usually the case, I'm not sure if it can
be taken for granted.
This commit is contained in:
zeertzjq
2022-02-06 16:29:12 +08:00
parent 8215c05945
commit d65ee12914
6 changed files with 66 additions and 19 deletions
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12
runtime/doc/builtin.txt
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@@ -314,7 +314,7 @@ nextnonblank({lnum}) Number line nr of non-blank line >= {lnum}
nr2char({expr}[, {utf8}]) String single char with ASCII/UTF-8 value {expr}
nvim_...({args}...) any call nvim |api| functions
or({expr}, {expr}) Number bitwise OR
pathshorten({expr}) String shorten directory names in a path
pathshorten({expr} [, {len}]) String shorten directory names in a path
perleval({expr}) any evaluate |perl| expression
pow({x}, {y}) Float {x} to the power of {y}
prevnonblank({lnum}) Number line nr of non-blank line <= {lnum}
@@ -5204,13 +5204,17 @@ or({expr}, {expr}) *or()*
< Can also be used as a |method|: >
:let bits = bits->or(0x80)
pathshorten({path}) *pathshorten()*
pathshorten({expr} [, {len}]) *pathshorten()*
Shorten directory names in the path {path} and return the
result. The tail, the file name, is kept as-is. The other
components in the path are reduced to single letters. Leading
'~' and '.' characters are kept. Example: >
components in the path are reduced to {len} letters in length.
If {len} is omitted or smaller than 1 then 1 is used (single
letters). Leading '~' and '.' characters are kept. Examples: >
:echo pathshorten('~/.config/nvim/autoload/file1.vim')
< ~/.c/n/a/file1.vim ~
>
:echo pathshorten('~/.config/nvim/autoload/file2.vim', 2)
< ~/.co/nv/au/file2.vim ~
It doesn't matter if the path exists or not.
Can also be used as a |method|: >