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basename: -s SUFFIX.

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AOSP doesn't need -a specifically, but since it's needed for -s we may
as well accept it too.
This commit is contained in:
Elliott Hughes 2018-11-12 20:52:29 -08:00 committed by Rob Landley
parent d54fac979e
commit 457dda2930
2 changed files with 31 additions and 7 deletions
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5
tests/basename.test
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@ -24,3 +24,8 @@ testcmd "invalid suffix" "isthisasuffix? suffix" "isthisasuffix?\n" "" ""
# Zero-length suffix
testcmd "zero-length suffix" "a/b/c ''" "c\n" "" ""
# -s.
testcmd "-s" "-s .txt /a/b/c.txt" "c\n" "" ""
testcmd "-s implies -a" "-s .txt /a/b/c.txt /a/b/d.txt" "c\nd\n" "" ""
testcmd "-a" "-a /a/b/f1 /c/d/f2" "f1\nf2\n" "" ""

33
toys/posix/basename.c
View File

@ -5,25 +5,44 @@
* See http://opengroup.org/onlinepubs/9699919799/utilities/basename.html
USE_BASENAME(NEWTOY(basename, "<1>2", TOYFLAG_USR|TOYFLAG_BIN))
USE_BASENAME(NEWTOY(basename, "<1as:", TOYFLAG_USR|TOYFLAG_BIN))
config BASENAME
bool "basename"
default y
help
usage: basename string [suffix]
usage: basename [-a] [-s SUFFIX] NAME... | NAME [SUFFIX]
Return non-directory portion of a pathname removing suffix
Return non-directory portion of a pathname removing suffix.
-a All arguments are names.
-s SUFFIX Remove suffix (implies -a).
*/
#define FOR_basename
#include "toys.h"
GLOBALS(
char *s;
)
void basename_main(void)
{
char *base = basename(*toys.optargs), *suffix = toys.optargs[1];
char **arg;
// chop off the suffix if provided
if (suffix && *suffix && (suffix = strend(base, suffix))) *suffix = 0;
if (toys.optflags&FLAG_s) toys.optflags |= FLAG_a;
puts(base);
if (!(toys.optflags&FLAG_a)) {
if (toys.optc > 2) error_exit("too many args");
TT.s = toys.optargs[1];
toys.optargs[1] = NULL;
}
for (arg = toys.optargs; *arg; ++arg) {
char *base = basename(*arg), *p;
// Chop off the suffix if provided.
if (TT.s && *TT.s && (p = strend(base, TT.s))) *p = 0;
puts(base);
}
}