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cut: fix up -D/-s behavior with -F

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function                                             old     new   delta
cut_main                                            1388    1402     +14
packed_usage                                       34934   34933      -1
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(add/remove: 0/0 grow/shrink: 1/1 up/down: 14/-1)              Total: 13 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2024-12-20 22:12:33 +01:00
parent dd40b40ee5
commit b03f5162ac
2 changed files with 36 additions and 5 deletions
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6
coreutils/cut.c
View file

@ -43,7 +43,7 @@
//usage: "\n -F LIST Print only these fields (-d is regex)"
//usage: )
//usage: "\n -s Drop lines with no delimiter (else print them in full)"
//usage: "\n -D Don't sort/collate sections or match -f"IF_FEATURE_CUT_REGEX("F")" lines without delimeter"
//usage: "\n -D Don't sort ranges; line without delimiters has one field"
//usage: IF_LONG_OPTS(
//usage: "\n --output-delimiter SEP Output field delimeter"
//usage: ) IF_NOT_LONG_OPTS(
@ -202,8 +202,8 @@ static void cut_file(FILE *file, const char *delim, const char *odelim,
/* End of current line? */
if (next == linelen) {
end = linelen; /* print up to end */
/* If we've seen no delimiters, check -s */
if (cl_pos == 0 && dcount == 0 && !opt_REGEX) {
/* If we've seen no delimiters, and no -D, check -s */
if (!(option_mask32 & OPT_NOSORT) && cl_pos == 0 && dcount == 0) {
if (option_mask32 & OPT_SUPPRESS)
goto next_line;
/* else: will print entire line */

35
testsuite/cut.tests
View file

@ -95,8 +95,16 @@ testing "cut with -d -s omits blank lines" "cut -d' ' -f2 -s input" "bar\nbong\n
# substitute for awk
optional FEATURE_CUT_REGEX
testing "cut -DF" "cut -DF 2,7,5" \
"said and your\nare\nis demand. supply\nforecast :\nyou you better,\n\nEm: Took hate\n" "" \
testing "cut -DF unordered" "cut -DF 2,7,5" \
"\
said and your
are
is demand. supply
forecast :
you you better,
Em: Took hate
" "" \
"Bother, said Pooh. It's your husband, and he has a gun.
Cheerios are donut seeds.
Talk is cheap because supply exceeds demand.
@ -105,6 +113,29 @@ Apple: you can buy better, but you can't pay more.
Subcalifragilisticexpialidocious.
Auntie Em: Hate you, hate Kansas. Took the dog. Dorothy."
# No delimiter found: print entire line regardless of -F RANGES
testing "cut -F1" "cut -d: -F1" \
"the_only_field\n" "" \
"the_only_field\n"
testing "cut -F2" "cut -d: -F2" \
"the_only_field\n" "" \
"the_only_field\n"
# No delimiter found and -s: skip entire line
testing "cut -sF1" "cut -d: -sF1" \
"" "" \
"the_only_field\n"
#^^^ the above is probably mishandled by toybox, it prints the line
testing "cut -sF2" "cut -d: -sF2" \
"" "" \
"the_only_field\n"
# -D disables special handling of lines with no delimiters, the line is treated as the 1st field
testing "cut -DF1" "cut -d: -DF1" \
"the_only_field\n" "" \
"the_only_field\n"
testing "cut -DF2" "cut -d: -DF2" \
"\n" "" \
"the_only_field\n"
optional FEATURE_CUT_REGEX LONG_OPTS
testing "cut -F preserves intermediate delimiters" \
"cut --output-delimiter=: -F2,4-6,7" \