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-rw-r--r--toys/posix/ls.c117
1 files changed, 69 insertions, 48 deletions
diff --git a/toys/posix/ls.c b/toys/posix/ls.c
index 799631b1..bec76e99 100644
--- a/toys/posix/ls.c
+++ b/toys/posix/ls.c
@@ -5,7 +5,7 @@
*
* See http://opengroup.org/onlinepubs/9699919799/utilities/ls.html
-USE_LS(NEWTOY(ls, USE_LS_COLOR("(color):;")"ZgoACFHLRSacdfhiklmnpqrstux1[-Cxm1][-Cxml][-Cxmo][-Cxmg][-cu][-ftS][-HL]", TOYFLAG_BIN|TOYFLAG_LOCALE))
+USE_LS(NEWTOY(ls, USE_LS_COLOR("(color):;")"ZgoACFHLRSabcdfhiklmnpqrstux1[-Cxm1][-Cxml][-Cxmo][-Cxmg][-cu][-ftS][-HL][!qb]", TOYFLAG_BIN|TOYFLAG_LOCALE))
config LS
bool "ls"
@@ -16,24 +16,24 @@ config LS
list files
what to show:
- -a all files including .hidden -c use ctime for timestamps
- -d directory, not contents -i inode number
- -k block sizes in kilobytes -p put a '/' after dir names
- -q unprintable chars as '?' -s size (in blocks)
- -u use access time for timestamps -A list all files but . and ..
- -H follow command line symlinks -L follow symlinks
- -R recursively list files in subdirs -F append /dir *exe @sym |FIFO
- -Z security context
+ -a all files including .hidden -b escape nongraphic chars
+ -c use ctime for timestamps -d directory, not contents
+ -i inode number -k block sizes in kilobytes
+ -p put a '/' after dir names -q unprintable chars as '?'
+ -s size (in blocks) -u use access time for timestamps
+ -A list all files but . and .. -H follow command line symlinks
+ -L follow symlinks -R recursively list files in subdirs
+ -F append /dir *exe @sym |FIFO -Z security context
output formats:
- -1 list one file per line -C columns (sorted vertically)
- -g like -l but no owner -h human readable sizes
- -l long (show full details) -m comma separated
- -n like -l but numeric uid/gid -o like -l but no group
- -x columns (horizontal sort)
+ -1 list one file per line -C columns (sorted vertically)
+ -g like -l but no owner -h human readable sizes
+ -l long (show full details) -m comma separated
+ -n like -l but numeric uid/gid -o like -l but no group
+ -x columns (horizontal sort)
sorting (default is alphabetical):
- -f unsorted -r reverse -t timestamp -S size
+ -f unsorted -r reverse -t timestamp -S size
config LS_COLOR
bool "ls --color"
@@ -61,34 +61,53 @@ GLOBALS(
unsigned screen_width;
int nl_title;
- char uid_buf[12], gid_buf[12];
+ char uid_buf[12], gid_buf[12], *escmore;
)
-// Does two things: 1) Returns wcwidth(utf8) version of strlen,
-// 2) replaces unprintable characters input string with '?' wildcard char.
-int strwidth(char *s)
+// Callback from crunch_str to represent unprintable chars
+int crunch_qb(FILE *out, int cols, int wc)
{
- int total = 0, width, len;
- wchar_t c;
-
- if (!CFG_TOYBOX_I18N) {
- total = strlen(s);
- if (toys.optflags & FLAG_q) for (; *s; s++) if (!isprint(*s)) *s = '?';
- } else while (*s) {
- len = mbrtowc(&c, s, MB_CUR_MAX, 0);
- if (len < 1 || (width = wcwidth(c)) < 0) {
- total++;
- if (toys.optflags & FLAG_q) *s = '?';
- s++;
- } else {
- s += len;
- total += width;
+ unsigned len = 1;
+ char buf[32];
+
+ if (toys.optflags&FLAG_q) *buf = '?';
+ else {
+ if (wc<256) *buf = wc;
+ // scrute the inscrutable, eff the ineffable, print the unprintable
+ else len = wcrtomb(buf, wc, 0);
+ if (toys.optflags&FLAG_b) {
+ char *to = buf, *from = buf+24;
+ int i, j;
+
+ memcpy(from, to, 8);
+ for (i = 0; i<len; i++) {
+ *to++ = '\\';
+ if (strchr(TT.escmore, from[i])) *to++ = from[i];
+ else if (-1 != (j = stridx("\\\a\b\033\f\n\r\t\v", from[i])))
+ *to++ = "\\abefnrtv"[j];
+ else to += sprintf(to, "%03o", from[i]);
+ }
+ len = to-buf;
}
}
- return total;
+ if (cols<len) len = cols;
+ if (out) fwrite(buf, len, 1, out);
+
+ return len;
}
+// Returns wcwidth(utf8) version of strlen with -qb escapes
+int strwidth(char *s)
+{
+ return crunch_str(&s, INT_MAX, 0, TT.escmore, crunch_qb);
+}
+
+void qbstr(char *s, int width)
+{
+ draw_trim_esc(s, width, abs(width), TT.escmore, crunch_qb);
+}
+
static char endtype(struct stat *st)
{
mode_t mode = st->st_mode;
@@ -292,7 +311,6 @@ static void listfiles(int dirfd, struct dirtree *indir)
char tmp[64];
if (-1 == dirfd) {
- strwidth(indir->name);
perror_msg_raw(indir->name);
return;
@@ -395,11 +413,12 @@ static void listfiles(int dirfd, struct dirtree *indir)
memset(toybuf, ' ', 256);
width = 0;
for (ul = 0; ul<dtlen; ul++) {
+ int ii;
unsigned curcol, color = 0;
unsigned long next = next_column(ul, dtlen, columns, &curcol);
struct stat *st = &(sort[next]->st);
mode_t mode = st->st_mode;
- char et = endtype(st);
+ char et = endtype(st), *ss;
// Skip directories at the top of the tree when -d isn't set
if (S_ISDIR(mode) && !indir->parent && !(flags & FLAG_d)) continue;
@@ -428,7 +447,6 @@ static void listfiles(int dirfd, struct dirtree *indir)
if (flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) {
struct tm *tm;
- char *ss;
// (long) is to coerce the st types into something we know we can print.
mode_to_string(mode, tmp);
@@ -436,16 +454,20 @@ static void listfiles(int dirfd, struct dirtree *indir)
// print user
if (!(flags&FLAG_g)) {
- if (flags&FLAG_n) sprintf(ss = tmp, "%u", (unsigned)st->st_uid);
- else strwidth(ss = getusername(st->st_uid));
- printf(" %-*s", (int)totals[3], ss);
+ putchar(' ');
+ ii = -totals[3];
+ if (flags&FLAG_n) printf("%*u", ii, (unsigned)st->st_uid);
+ else draw_trim_esc(getusername(st->st_uid), ii, abs(ii), TT.escmore,
+ crunch_qb);
}
// print group
if (!(flags&FLAG_o)) {
- if (flags&FLAG_n) sprintf(ss = tmp, "%u", (unsigned)st->st_gid);
- else strwidth(ss = getgroupname(st->st_gid));
- printf(" %-*s", (int)totals[4], ss);
+ putchar(' ');
+ ii = -totals[4];
+ if (flags&FLAG_n) printf("%*u", ii, (unsigned)st->st_gid);
+ else draw_trim_esc(getgroupname(st->st_gid), ii, abs(ii), TT.escmore,
+ crunch_qb);
}
if (flags & FLAG_Z)
@@ -472,10 +494,8 @@ static void listfiles(int dirfd, struct dirtree *indir)
if (color) printf("\033[%d;%dm", color>>8, color&255);
}
- if (flags & FLAG_q) {
- char *p;
- for (p=sort[next]->name; *p; p++) fputc(isprint(*p) ? *p : '?', stdout);
- } else xprintf("%s", sort[next]->name);
+ ss = sort[next]->name;
+ crunch_str(&ss, INT_MAX, stdout, TT.escmore, crunch_qb);
if (color) xprintf("\033[0m");
if ((flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) && S_ISLNK(mode)) {
@@ -526,6 +546,7 @@ void ls_main(void)
TT.screen_width = 80;
terminal_size(&TT.screen_width, NULL);
if (TT.screen_width<2) TT.screen_width = 2;
+ if (toys.optflags&FLAG_b) TT.escmore = " \\";
// Do we have an implied -1
if (!isatty(1)) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 18:08:08 +0000