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patch 9.0.0861: solution for "!!sort" in closed fold is not optimal

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Problem:    Solution for "!!sort" in closed fold is not optimal.
Solution:   Use a different range instead of the subtle difference in handling
            a range with an offset. (issue #11487)
This commit is contained in:
Bram Moolenaar
2022-11-11 22:58:36 +00:00
parent a20be06f97
commit 9954dc39ea
5 changed files with 114 additions and 21 deletions
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40
runtime/doc/cmdline.txt
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@ -736,7 +736,9 @@ Line numbers may be specified with: *:range* *{address}*
'T position of mark T (uppercase); when the mark is in
another file it cannot be used in a range
/{pattern}[/] the next line where {pattern} matches *:/*
also see |:range-pattern| below
?{pattern}[?] the previous line where {pattern} matches *:?*
also see |:range-pattern| below
\/ the next line where the previously used search
pattern matches
\? the previous line where the previously used search
@ -744,11 +746,49 @@ Line numbers may be specified with: *:range* *{address}*
\& the next line where the previously used substitute
pattern matches
*:range-offset*
Each may be followed (several times) by '+' or '-' and an optional number.
This number is added or subtracted from the preceding line number. If the
number is omitted, 1 is used. If there is nothing before the '+' or '-' then
the current line is used.
*:range-closed-fold*
When a line number after the comma is in a closed fold it is adjusted to the
last line of the fold, thus the whole fold is included.
When a number is added this is done after the adjustment to the last line of
the fold. This means these lines are additionally included in the range. For
example: >
:3,4+2print
On this text:
1 one ~
2 two ~
3 three ~
4 four FOLDED ~
5 five FOLDED ~
6 six ~
7 seven ~
8 eight ~
Where lines four and five are a closed fold, ends up printing lines 3 to 7.
The 7 comes from the "4" in the range, which is adjusted to the end of the
closed fold, which is 5, and then the offset 2 is added.
An example for subtracting (which isn't very useful): >
:2,4-1print
On this text:
1 one ~
2 two ~
3 three FOLDED~
4 four FOLDED ~
5 five FOLDED ~
6 six FOLDED ~
7 seven ~
8 eight ~
Where lines three to six are a closed fold, ends up printing lines 2 to 6.
The 6 comes from the "4" in the range, which is adjusted to the end of the
closed fold, which is 6, and then 1 is subtracted, then this is still in the
closed fold and the last line of that fold is used, which is 6.
*:range-pattern*
The "/" and "?" after {pattern} are required to separate the pattern from
anything that follows.