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Re: ls --color feature request: ordinary files uncoloured
|
From: |
Ed Avis |
|
Subject: |
Re: ls --color feature request: ordinary files uncoloured |
|
Date: |
Sat, 24 Jan 2004 18:14:08 +0000 (GMT) |
Jim Meyering <address@hidden> wrote:
>>I think it would be better for plain files to not have any ANSI
>>escape sequences around them, and for colouring to apply only to
>>directories, *.gz and so on.
>>Shall I send a patch for this?
>
>Please do.
diff -ru coreutils-5.0.91/src/ls.c coreutils-5.0.91.new/src/ls.c
--- coreutils-5.0.91/src/ls.c 2003-07-27 07:33:36.000000000 +0100
+++ coreutils-5.0.91.new/src/ls.c 2004-01-24 18:13:49.334955240 +0000
@@ -253,7 +253,7 @@
static int file_interesting (const struct dirent *next);
static uintmax_t gobble_file (const char *name, enum filetype type,
int explicit_arg, const char *dirname);
-static void print_color_indicator (const char *name, mode_t mode, int linkok);
+static bool print_color_indicator (const char *name, mode_t mode, int linkok);
static void put_indicator (const struct bin_str *ind);
static int put_indicator_direct (const struct bin_str *ind);
static int length_of_file_name_and_frills (const struct fileinfo *f);
@@ -499,6 +499,13 @@
static int print_with_color;
+/* Whether we used any colors in the output so far. If so, we will
+ need to restore the default color later. If not, we will need to
+ print some stuff (prep_non_filename_text ()) before using color for
+ the first time. */
+
+static bool used_color = false;
+
enum color_type
{
color_never, /* 0: default or --color=never */
@@ -517,13 +524,13 @@
enum indicator_no
{
- C_LEFT, C_RIGHT, C_END, C_NORM, C_FILE, C_DIR, C_LINK, C_FIFO, C_SOCK,
+ C_LEFT, C_RIGHT, C_END, C_RESET, C_NORM, C_FILE, C_DIR, C_LINK, C_FIFO,
C_SOCK,
C_BLK, C_CHR, C_MISSING, C_ORPHAN, C_EXEC, C_DOOR
};
static const char *const indicator_name[]=
{
- "lc", "rc", "ec", "no", "fi", "di", "ln", "pi", "so",
+ "lc", "rc", "ec", "rs", "no", "fi", "di", "ln", "pi", "so",
"bd", "cd", "mi", "or", "ex", "do", NULL
};
@@ -539,8 +546,9 @@
{ LEN_STR_PAIR ("\033[") }, /* lc: Left of color sequence */
{ LEN_STR_PAIR ("m") }, /* rc: Right of color sequence */
{ 0, NULL }, /* ec: End color (replaces lc+no+rc) */
- { LEN_STR_PAIR ("0") }, /* no: Normal */
- { LEN_STR_PAIR ("0") }, /* fi: File: default */
+ { LEN_STR_PAIR ("0") }, /* rs: Reset to ordinary colors */
+ { 0, NULL }, /* no: Normal */
+ { 0, NULL }, /* fi: File: default */
{ LEN_STR_PAIR ("01;34") }, /* di: Directory: bright blue */
{ LEN_STR_PAIR ("01;36") }, /* ln: Symlink: bright cyan */
{ LEN_STR_PAIR ("33") }, /* pi: Pipe: yellow/brown */
@@ -993,7 +1001,8 @@
signal (sig, SIG_IGN);
#endif
- restore_default_color ();
+ if (used_color)
+ restore_default_color ();
/* SIGTSTP is special, since the application can receive that signal more
than once. In this case, don't set the signal handler to the default.
@@ -1051,7 +1060,6 @@
may have just reset it -- e.g., if LS_COLORS is invalid. */
if (print_with_color)
{
- prep_non_filename_text ();
/* Avoid following symbolic links when possible. */
if (color_indicator[C_ORPHAN].string != NULL
|| (color_indicator[C_MISSING].string != NULL
@@ -1208,7 +1216,7 @@
}
/* Restore default color before exiting */
- if (print_with_color)
+ if (used_color)
{
put_indicator (&color_indicator[C_LEFT]);
put_indicator (&color_indicator[C_RIGHT]);
@@ -3271,8 +3279,8 @@
print_name_with_quoting (const char *p, mode_t mode, int linkok,
struct obstack *stack)
{
- if (print_with_color)
- print_color_indicator (p, mode, linkok);
+ const bool used_color_this_time
+ = print_with_color && print_color_indicator (p, mode, linkok);
if (stack)
PUSH_CURRENT_DIRED_POS (stack);
@@ -3282,7 +3290,7 @@
if (stack)
PUSH_CURRENT_DIRED_POS (stack);
- if (print_with_color)
+ if (used_color_this_time)
prep_non_filename_text ();
}
@@ -3294,7 +3302,7 @@
else
{
put_indicator (&color_indicator[C_LEFT]);
- put_indicator (&color_indicator[C_NORM]);
+ put_indicator (&color_indicator[C_RESET]);
put_indicator (&color_indicator[C_RIGHT]);
}
}
@@ -3354,7 +3362,8 @@
DIRED_PUTCHAR (c);
}
-static void
+/* Returns whether any color sequence was printed. */
+static bool
print_color_indicator (const char *name, mode_t mode, int linkok)
{
int type = C_FILE;
@@ -3406,16 +3415,32 @@
}
}
}
-
- put_indicator (&color_indicator[C_LEFT]);
- put_indicator (ext ? &(ext->seq) : &color_indicator[type]);
- put_indicator (&color_indicator[C_RIGHT]);
+
+ {
+ const struct bin_str *const s
+ = ext ? &(ext->seq) : &color_indicator[type];
+ if (s->string != NULL)
+ {
+ put_indicator (&color_indicator[C_LEFT]);
+ put_indicator (s);
+ put_indicator (&color_indicator[C_RIGHT]);
+ return true;
+ }
+ else
+ return false;
+ }
}
/* Output a color indicator (which may contain nulls). */
static void
put_indicator (const struct bin_str *ind)
{
+ if (! used_color)
+ {
+ used_color = true;
+ prep_non_filename_text ();
+ }
+
register int i;
register const char *p;
@@ -3431,6 +3456,12 @@
static int
put_indicator_direct (const struct bin_str *ind)
{
+ if (! used_color)
+ {
+ used_color = true;
+ prep_non_filename_text ();
+ }
+
size_t len;
if (ind->len <= 0)
return 0;
diff -ru coreutils-5.0.91/tests/ls-2/tests coreutils-5.0.91.new/tests/ls-2/tests
--- coreutils-5.0.91/tests/ls-2/tests 2003-04-08 11:36:44.000000000 +0100
+++ coreutils-5.0.91.new/tests/ls-2/tests 2004-01-24 17:58:31.098548392
+0000
@@ -32,6 +32,7 @@
$ENV{LS_COLORS}='ln=01;36:di=01;34:or=40;31;01'
}};
my $unlink_d = {POST => sub {unlink 'd' or die "d: $!\n"}};
+my $creat_d = {PRE => sub {local *FH; open(FH, '>d') or die "d: $!\n"}};
sub make_j_d ()
{
@@ -85,6 +86,9 @@
{OUT => "\e[0m\e[01;address@hidden"},
$slink_d, $unlink_d],
+ # A listing with only plain files should have no color sequences at all.
+ ['no-color', '--color=always d', {OUT => "d\n"}, $creat_d, $unlink_d],
+
# Test for a bug that was introduced in coreutils-4.5.4; fixed in 4.5.5.
# To demonstrate it, the file in question (with executable bit set)
# must not be a command line argument.
--
Ed Avis <address@hidden>