vim-patch:8.1.0120: buffer 'modified' set even when :sort has no changes

Problem:    Buffer 'modified' set even when :sort has no changes.
Solution:   Only set 'modified' when lines are moved. (Jason Franklin)
dc9e955fb0
This commit is contained in:
Jan Edmund Lazo 2018-09-26 21:21:14 -04:00
parent fc18fad74f
commit 25e6d37705
2 changed files with 60 additions and 10 deletions

View File

@ -424,6 +424,7 @@ void ex_sort(exarg_T *eap)
sort_abort = sort_ic = sort_rx = sort_nr = sort_flt = 0;
size_t format_found = 0;
bool change_occurred = false; // Buffer contents changed.
for (p = eap->arg; *p != NUL; ++p) {
if (ascii_iswhite(*p)) {
@ -585,7 +586,15 @@ void ex_sort(exarg_T *eap)
// Insert the lines in the sorted order below the last one.
lnum = eap->line2;
for (i = 0; i < count; ++i) {
s = ml_get(nrs[eap->forceit ? count - i - 1 : i].lnum);
const linenr_T get_lnum = nrs[eap->forceit ? count - i - 1 : i].lnum;
// If the original line number of the line being placed is not the same
// as "lnum" (accounting for offset), we know that the buffer changed.
if (get_lnum + ((linenr_T)count - 1) != lnum) {
change_occurred = true;
}
s = ml_get(get_lnum);
if (!unique || i == 0
|| (sort_ic ? STRICMP(s, sortbuf1) : STRCMP(s, sortbuf1)) != 0) {
// Copy the line into a buffer, it may become invalid in
@ -617,7 +626,9 @@ void ex_sort(exarg_T *eap)
} else if (deleted < 0) {
mark_adjust(eap->line2, MAXLNUM, -deleted, 0L, false);
}
if (change_occurred || deleted != 0) {
changed_lines(eap->line1, 0, eap->line2 + 1, -deleted, true);
}
curwin->w_cursor.lnum = eap->line1;
beginline(BL_WHITE | BL_FIX);

View File

@ -1,13 +1,13 @@
" Test sort()
" Tests for the "sort()" function and for the ":sort" command.
:func Compare1(a, b) abort
func Compare1(a, b) abort
call sort(range(3), 'Compare2')
return a:a - a:b
:endfunc
endfunc
:func Compare2(a, b) abort
func Compare2(a, b) abort
return a:a - a:b
:endfunc
endfunc
func Test_sort_strings()
" numbers compared as strings
@ -45,7 +45,7 @@ func Test_sort_default()
call assert_fails('call sort([3.3, 1, "2"], 3)', "E474")
endfunc
" Tests for the :sort command
" Tests for the ":sort" command.
func Test_sort_cmd()
let tests = [
\ {
@ -1167,15 +1167,54 @@ func Test_sort_cmd()
\ '1.234',
\ '123.456'
\ ]
\ }
\ },
\ {
\ 'name' : 'alphabetical, sorted input',
\ 'cmd' : 'sort',
\ 'input' : [
\ 'a',
\ 'b',
\ 'c',
\ ],
\ 'expected' : [
\ 'a',
\ 'b',
\ 'c',
\ ]
\ },
\ {
\ 'name' : 'alphabetical, sorted input, unique at end',
\ 'cmd' : 'sort u',
\ 'input' : [
\ 'aa',
\ 'bb',
\ 'cc',
\ 'cc',
\ ],
\ 'expected' : [
\ 'aa',
\ 'bb',
\ 'cc',
\ ]
\ },
\ ]
for t in tests
enew!
call append(0, t.input)
$delete _
exe t.cmd
setlocal nomodified
execute t.cmd
call assert_equal(t.expected, getline(1, '$'), t.name)
" Previously, the ":sort" command would set 'modified' even if the buffer
" contents did not change. Here, we check that this problem is fixed.
if t.input == t.expected
call assert_false(&modified, t.name . ': &mod is not correct')
else
call assert_true(&modified, t.name . ': &mod is not correct')
endif
endfor
call assert_fails('sort no', 'E474')