(scanargs): Don't mess with argc, argv; getopt_long handles this now.
Say "operands" for operands, not "options".
(main): Use getopt_long, so that "dd --" works as POSIX requires.
The current standard (POSIX 1003.1-2004) is correct.
(crc_remainder) [defined CRCTAB]: Renamed from "remainder" to avoid
collision with builtin function.
(main) [defined CRCTAB]: Output in lowercase hexadecimal, and
output the first 0 as 8 digits, to make it easier to compare to
the text of the standard. Output crctab to be a const array.
(crctab): Use result of above changes.
(long_options): Remove; not needed if empty.
(main): getopt_long can't return 0 here, so simplify the code.
parse_obsolescent_option, since the options are obsolete now.
Remove bool *arg; just exit if there's an error. Revamp to follow
POSIX 1003.2-1992 more precisely, to handle cases like "tail -
file" and "tail -10 -- file" correctly when we are conforming to
the older standard.
(main): Adjust to this change.
(COMMON_SHORT_OPTIONS): Add -B, -D, -e, -F, -H, -I, -L, -O, -s, -X.
(long_options, main): --strings is now -S, not -s.
(usage): Reflect the usage changes.
(parse_old_offset): Do not issue a diagnostic on failure;
callers now do this as necessary.
(main): Support POSIX syntax. Remove unused case 0 from getopt_long.
Add support for new short options (many undocumented) for
compatibility with FreeBSD. Remove FIXME for -s; it's now
POSIX-compatible. Default format is now oS, not o2.
(bit_count): Remove. All uses changed to....
(multiple_bits_set): New function.
(scanargs): Use it, and check separately for each set of
incompatible options, to improve diagnostics.
(MX): Remove.
(apply_translations): Move checks for incompatible options
to scanargs, so that they're done consistently.
(write_error, xputchar): New functions.
(paste_parallel): Use correct errno value after input error.
(paste_parallel, paste_serial): Report errno value after output error.
(parse_tab_stop): Renamed from parse_tabstop. All uses changed.
(validate_tab_stop): Renamed from validate_tabstop. All uses changed.
(next_file, main): Check fclose against 0, not EOF.
(unexpand): Remove unnecessary casts.
Add another loop nesting level, for lines, so that per-line variables
are initialized cleanly.
Revamp tab checking. Check for write error immediately, rather
than just once at the end of the program.
(TAB_STOP_SENTINEL): Remove.
(tab_size): Now size_t, not uintmax_t, since we need to store
the sequences of blanks.
(max_column_width): New var.
(usage): Say "blank" where POSIX requires this.
(add_tab_stop): Calculate maximum column width.
(unexpand): Store the pending blanks, instead of merely counting them.
Follow POSIX's rules about -a requiring two blanks before a tab stop.
Get rid of internal label and goto.
(usage): -i does not convert tabs after non-tabs.
(add_tab_stop): Renamed from add_tabstop. All uses changed.
(parse_tab_stop): Renamed from parse_tabstop. All uses changed.
(validate_tab_stop): Renamed from validate_tabstop. All uses changed.
(next_file, main): Check fclose against 0, not EOF.
(expand): Remove unnecessary casts.
Add another loop nesting level, for lines, so that per-line variables
are initialized cleanly.
Revamp tab checking. Check for write error immediately, rather
than just once at the end of the program.
a destination with link count greater than one. This is so
that commands like "cp -a" don't get confused when copying into
a destination that already contains many hard links.
Paul Eggert