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files: when truncating a file name, give an indication of this

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Show leading dots for the truncated part, or (if there is no room
at all) show just an underscore instead of the file name.

This fixes https://savannah.gnu.org/bugs/?59802.

Bug existed since version 2.9.3, commit 97cbbb0c.
This commit is contained in:
Benno Schulenberg 2021-01-03 11:07:52 +01:00
parent e14127b843
commit 86c9b9b54e
1 changed files with 25 additions and 16 deletions
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41
src/files.c
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@ -98,6 +98,27 @@ void make_new_buffer(void)
#endif
}
/* Return the given file name in a way that fits within the given space. */
char *crop_to_fit(const char *name, int room)
{
char *fragment, *clipped;
if (breadth(name) <= room)
return display_string(name, 0, room, FALSE, FALSE);
if (room < 4)
return copy_of("_");
fragment = display_string(name, breadth(name) - room + 3, room, FALSE, FALSE);
clipped = nmalloc(strlen(fragment) + 4);
strcpy(clipped, "...");
strcat(clipped, fragment);
free(fragment);
return clipped;
}
#ifndef NANO_TINY
/* Delete the lockfile. Return TRUE on success, and FALSE otherwise. */
bool delete_lockfile(const char *lockfilename)
@ -226,7 +247,7 @@ char *do_lockfile(const char *filename, bool ask_the_user)
else if (stat(lockfilename, &fileinfo) != -1) {
char *lockbuf, *question, *pidstring, *postedname, *promptstr;
static char lockprog[11], lockuser[17];
int lockfd, lockpid, room, choice;
int lockfd, lockpid, choice;
ssize_t readamt;
if ((lockfd = open(lockfilename, O_RDONLY)) < 0) {
@ -267,19 +288,8 @@ char *do_lockfile(const char *filename, bool ask_the_user)
/* TRANSLATORS: The second %s is the name of the user, the third that of the editor. */
question = _("File %s is being edited by %s (with %s, PID %s); open anyway?");
room = COLS - breadth(question) + 7 - breadth(lockuser) -
breadth(lockprog) - breadth(pidstring);
if (room < 4)
postedname = copy_of("_");
else if (room < breadth(filename)) {
char *fragment = display_string(filename,
breadth(filename) - room + 3, room, FALSE, FALSE);
postedname = nmalloc(strlen(fragment) + 4);
strcpy(postedname, "...");
strcat(postedname, fragment);
free(fragment);
} else
postedname = display_string(filename, 0, room, FALSE, FALSE);
postedname = crop_to_fit(filename, COLS - breadth(question) - breadth(lockuser) -
breadth(lockprog) - breadth(pidstring) + 7);
/* Allow extra space for username (14), program name (8), PID (8),
* and terminating \0 (1), minus the %s (2) for the file name. */
@ -2228,8 +2238,7 @@ int do_writeout(bool exiting, bool withprompt)
if (name_exists) {
char *question = _("File \"%s\" exists; OVERWRITE? ");
char *name = display_string(answer, 0,
COLS - breadth(question) + 1, FALSE, FALSE);
char *name = crop_to_fit(answer, COLS - breadth(question) + 1);
char *message = nmalloc(strlen(question) +
strlen(name) + 1);