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royally if the link length is long (e.g., GNU/Hurd). Use
xreadlink instead, it's safer. Don't bother to read the link if
it's the wrong size. Add a FIXME because this area is a bit murky
and undocumented.
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Include <stddef.h>, for size_t.
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Prefer the notation `STREQ (a, b)' over `!strcmp (a, b)'
and `STREQ (a, b)' over `strcmp (a, b) == 0'.
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Prefer the notation `STREQ (a, b)' over `strcmp (a, b) == 0'.
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Prefer the notation `STREQ (a, b)' over `strcmp (a, b) == 0'.
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(echo invocation): Document today's changes.
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(DEFAULT_ECHO_TO_XPG): Renamed from V9_DEFAULT, so that
we use the same naming convention as bash. Now an enum,
not a macro.
(usage): Reword to mention -e/-E more accurately.
Mention \0NNN (the POSIX syntax) rather than \NNN (nonstandard).
(hextobin): New function.
(main): Use bool rather than int for local vars when appropriate.
Do not allow options if POSIXLY_CORRECT, unless we are using
BSD semantics and the first argument is "-n".
Don't pass unnecessary extra arg to parse_long_options.
do_v9 now defaults to DEFAULT_ECHO_TO_XPG, not to allow_options.
Do not look for options if !allow_options.
Use size_t rather than int when appropriate.
Open-code option test rather than using strrchr.
Use faster test for "-".
Avoid redundant argc test.
Add support for \x, for Bash compatibility.
Use e.g. '\a' rather than '\007', for portability to EBCDIC hosts.
When '\c' is encountered, stop printing immediately, as POSIX
requires.
Add support for \xhh syntax.
Add support for \0ooo syntax; POSIX requires this.
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tr cleanup, mostly having to do with integer type ranges.
Remove all casts.
* tests/tr/Test.pm: Add a few tests for the below. Alas, most of
the test cases wouldn't be portable, or would take too much CPU
time, or both.
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the build src/ directory -- at the front.
($(srcdir)/$x-tests): Depend on Makefile.am.
Use $x as the program name, except when it would be `test' (test is
the sole program tested via mk-script that is also a shell built-in).
In that case, use the old ../../src/$x.
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buffer; that initialization triggered the same compiler bug as above.
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Remove all casts.
Here are examples of the failures:
$ echo a | tr a '[x*][y*2147483646][y*2147483646][y*4]'
x
$ echo abcd | tr abc '[b*\9]'
bbbd
$ echo abcd | tr abc '[b*0]'
tr: invalid repeat count `0' in [c*n] construct
$ echo abcd | tr -c '[a*65536]\n' '[b*]'
tr: ../../coreutils-5.2.1/src/tr.c:1942: main: Assertion `get_next (s2, ((void *)0)) == -1 || truncate_set1' failed.
Aborted
(N_CHARS, N_CHAR_CLASSES): Now an enum, not a macro.
This is safe since the code already assumes N_CHARS fits in int.
(Filter): Remove: we want to prototype everything.
(ORD, CHR): Remove. All uses removed. Some replaced with:
(uchar): New function. All places where a char must be converted
to an unsigned char are now done this way, not by ad-hoc methods.
(count): New type. Use it whenever counts or states are needed.
(BEGIN_STATE): Increase from INT_MAX - 1 (which was bogus, anyway,
since we used it in an unsigned int context) to UINTMAX_MAX - 1.
(REPEAT_COUNT_MAXIMUM): New macro. Use it in place of BEGIN_STATE
whenever appropriate.
(NOT_A_CHAR): Remove global macro; now a local enum.
(UL_LOWER, UL_UPPER, UL_NONE): No longer specify values, since
the rest of the code no longer depends on them.
(class_ok): Remove; all uses changed to use inline comparisons.
(RE_NO_TYPE): Remove; wasn't used or needed.
(struct List_element): normal_char and equiv_code are now unsigned
char, not int.
first_char, last_char, and the_repeated_char are now unsigned char,
not unsigned int. repeat_count is now count, not size_t.
All uses changed.
(struct Spec_list): state is now count, not unsigned int.
lengthis now count, not size_t.
n_indefinite_repeats is now size_t, not int.
has_equiv_class, has_char_class, and has_restricted_char_class
are now bool, not int. All uses changed.
(struct E_string): s is now char *, not unsigned char *.
escaped is now bool *, not int *. All uses changed.
(ES_MATCH): Remove macro, replacing with:
(es_match): New inline function. All uses changed.
(squeeze_repeats, complement, posix_pedantic, truncate_set1,
translating): Now bool, not int.
(io_buf): Now char array, not unsigned char.
(SET_TYPE): Remove. All uses replaced with bool.
(is_equiv_class_member, unquote, append_range, append_char_class,
append_equiv_class, find_closing_delim, star_digits_closebracket,
build_spec_list, parse_str, homogeneous_spec_list):
Now returns bool, not int. All uses changed.
(is_equiv_class_member): Now inline.
(is_equiv_class_member, is_char_class_member, make_printable_str,
append_normal_char, append_range, append_repeated_char,
get_s2_spec_stats):
Args are now of proper integer type.
(unquote, look_up_char_class, make_printable_str,
append_equiv_class, build_spec_list, squeeze_filter):
Avoid unsigned char *p; gently convert *p to unsigned char instead.
(unquote, get_spec_stats): Do not jump past declarations and then
use them; C doesn't allow this in portable programs.
(make_printable_str): Check for overflow in size calculations.
(xmemdup): Remove. All uses rewritten.
(find_bracketed_repeat): Args are now of proper pointer-to-integer
type. Do not reject [c*0]. Use xstrtoumax, not xstrtoul.
(find_bracketed_repeat, star_digits_closebracket): Check that the
digits are not escaped.
(build_spec_list): Don't bother to copy opnd_str; not needed.
(build_spec_list, get_next): Simplify internal logic a bit.
(card_of_complement): Fix bug due to char overflow.
(get_spec_stats): Don't assume len fits into int.
Check for integer overflow. Use abort() rather than assert(0).
(string2_extend): Fix subscript error: is_char_class_member (..., 255)
was being invoked.
(squeeze_filter): READER is never null now; simplify code.
READER arg now has a simpler type. Remove unnecessary casts.
(squeeze_filter, main): Calls to fwrite improperly checked result
against zero, rather than against requested size.
(plain_read): New function.
(read_and_delete, read_and_xlate):
Remove unused filter arg, and don't worry about hit_eof.
Simplify by using plain_read.
(set_initialize): Args are bool and bool *, not int and SET_TYPE *.
(main): Always pass a non-null procedure to squeeze_filter.
Rewrite so that class_ok isn't needed.
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(card_of_complement): Use cleaner `sizeof in_set'
rather than `N_CHARS * sizeof(in_set[0])'. Using HPUX's /bin/cc
(aC++/ANSI C B3910B A.05.55 [Dec 04 2003]) on an ia64-hp-hpux11.22
system, those two expressions are not the same (256 vs. 1024).
The effect of this problem was that `tr -c x y' would fail:
tr: when not truncating set1, string2 must be non-empty
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fdatasync reports EBADF when syncing (unwritable) directories.
Problem reported by Albert Chin-A-Young in:
http://lists.gnu.org/archive/html/bug-coreutils/2004-05/msg00165.html
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