diff options
| author | Bram Moolenaar <Bram@vim.org> | 2022-10-01 19:43:52 +0100 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2022-10-01 19:43:52 +0100 |
| commit | a4e0b9785e409e9e660171cea76dfcc5fdafad9b (patch) | |
| tree | 3323913d9bdc9cd09029b1314a77c4a5e8191bbf /runtime/doc/print.txt | |
| parent | b850c39676db21c6f1aa3afed0e2e48d407dd60e (diff) | |
patch 9.0.0634: evaluating "expr" options has more overhead than neededv9.0.0634
Problem: Evaluating "expr" options has more overhead than needed.
Solution: Use call_simple_func() for 'foldtext', 'includeexpr', 'printexpr',
"expr" of 'spellsuggest', 'diffexpr', 'patchexpr', 'balloonexpr',
'formatexpr', 'indentexpr' and 'charconvert'.
Diffstat (limited to 'runtime/doc/print.txt')
| -rw-r--r-- | runtime/doc/print.txt | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/runtime/doc/print.txt b/runtime/doc/print.txt index 2774e981f6..9f8bb20879 100644 --- a/runtime/doc/print.txt +++ b/runtime/doc/print.txt @@ -158,13 +158,16 @@ currently specified printdevice: > If you change this option, using a function is an easy way to avoid having to escape all the spaces. Example: > - :set printexpr=PrintFile(v:fname_in) - :function PrintFile(fname) - : call system("ghostview " .. a:fname) - : call delete(a:fname) + :set printexpr=PrintFile() + :function PrintFile() + : call system("ghostview " .. v:fname_in) + : call delete(v:fname_in) : return v:shell_error :endfunc +It is more efficient if the option is set to just a function call, +see |expr-option-function|. + Be aware that some print programs return control before they have read the file. If you delete the file too soon it will not be printed. These programs usually offer an option to have them remove the file when printing is done. |