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vi: don't touch file with :x when modified_count == 0

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Along with it, there are other changes

 - Check for uppercase X is removed as the expression will be always false and
   :X itself is another totally different command in standard vim
 - The status line will show number of written lines instead of lines requested
   by the colon command.  This is also how the standard vim is doing, though
   the difference is that '!' has to be explicitly specified in vim to allow
   partial writes

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2017-03-13 20:50:42 +01:00
parent 02a2a278f6
commit e88608eae2
1 changed files with 26 additions and 17 deletions
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43
editors/vi.c
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@ -1034,7 +1034,9 @@ static void colon(char *buf)
|| strncmp(p, "wn", cnt) == 0
|| (p[0] == 'x' && !p[1])
) {
cnt = file_write(current_filename, text, end - 1);
if (modified_count != 0 || p[0] != 'x') {
cnt = file_write(current_filename, text, end - 1);
}
if (cnt < 0) {
if (cnt == -1)
status_line_bold("Write error: %s", strerror(errno));
@ -1045,8 +1047,9 @@ static void colon(char *buf)
current_filename,
count_lines(text, end - 1), cnt
);
if (p[0] == 'x' || p[1] == 'q' || p[1] == 'n'
|| p[0] == 'X' || p[1] == 'Q' || p[1] == 'N'
if (p[0] == 'x'
|| p[1] == 'q' || p[1] == 'n'
|| p[1] == 'Q' || p[1] == 'N'
) {
editing = 0;
}
@ -1476,16 +1479,19 @@ static void colon(char *buf)
goto ret;
}
#endif
// how many lines in text[]?
li = count_lines(q, r);
size = r - q + 1;
//if (useforce) {
// if "fn" is not write-able, chmod u+w
// sprintf(syscmd, "chmod u+w %s", fn);
// system(syscmd);
// forced = TRUE;
//}
l = file_write(fn, q, r);
if (modified_count != 0 || cmd[0] != 'x') {
size = r - q + 1;
l = file_write(fn, q, r);
} else {
size = 0;
l = 0;
}
//if (useforce && forced) {
// chmod u-w
// sprintf(syscmd, "chmod u-w %s", fn);
@ -1496,17 +1502,20 @@ static void colon(char *buf)
if (l == -1)
status_line_bold_errno(fn);
} else {
// how many lines written
li = count_lines(q, q + l - 1);
status_line("'%s' %dL, %dC", fn, li, l);
if (q == text && r == end - 1 && l == size) {
modified_count = 0;
last_modified_count = -1;
}
if ((cmd[0] == 'x' || cmd[1] == 'q' || cmd[1] == 'n'
|| cmd[0] == 'X' || cmd[1] == 'Q' || cmd[1] == 'N'
)
&& l == size
) {
editing = 0;
if (l == size) {
if (q == text && q + l == end) {
modified_count = 0;
last_modified_count = -1;
}
if (cmd[0] == 'x'
|| cmd[1] == 'q' || cmd[1] == 'n'
|| cmd[1] == 'Q' || cmd[1] == 'N'
) {
editing = 0;
}
}
}
#if ENABLE_FEATURE_VI_YANKMARK