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cut: Add -s
option to suppress lines without field delimiters
If this option is not specified, lines that contain to field delimiters will be printed unmodified.
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dedbc17160
Notes:
sideshowbarker
2024-07-16 23:34:44 +09:00
Author: https://github.com/tcl3 Commit: https://github.com/SerenityOS/serenity/commit/dedbc17160 Pull-request: https://github.com/SerenityOS/serenity/pull/19614
@ -23,6 +23,7 @@ With no FILE, or when FILE is -, read standard input.
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* `-b` `--bytes=list`: Select only these bytes
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* `-f` `--fields=list`: select only these fields; also print any line that contains no delimiter character
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* `-d` `--delimiter=delim`: use `delim` instead of `tab` for field delimiter
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* `-s`, `only-delimited`: suppress lines which don't contain any field delimiter characters
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## Examples
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@ -134,11 +134,13 @@ static void process_line_bytes(StringView line, Vector<Range> const& ranges)
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outln();
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}
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static void process_line_fields(StringView line, Vector<Range> const& ranges, char delimiter)
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static void process_line_fields(StringView line, Vector<Range> const& ranges, char delimiter, bool only_print_delimited_lines)
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{
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auto string_split = DeprecatedString(line).split(delimiter, SplitBehavior::KeepEmpty);
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if (string_split.size() == 1) {
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outln("{}", line);
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if (!only_print_delimited_lines)
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outln("{}", line);
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return;
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}
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@ -157,6 +159,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
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DeprecatedString byte_list = "";
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DeprecatedString fields_list = "";
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DeprecatedString delimiter = "\t";
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bool only_print_delimited_lines = false;
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Vector<StringView> files;
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@ -165,6 +168,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
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args_parser.add_option(byte_list, "select only these bytes", "bytes", 'b', "list");
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args_parser.add_option(fields_list, "select only these fields", "fields", 'f', "list");
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args_parser.add_option(delimiter, "set a custom delimiter", "delimiter", 'd', "delimiter");
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args_parser.add_option(only_print_delimited_lines, "suppress lines which don't contain any field delimiter characters", "only-delimited", 's');
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args_parser.parse(arguments);
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bool selected_bytes = (byte_list != "");
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@ -249,7 +253,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
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if (selected_bytes) {
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process_line_bytes(line, disjoint_ranges);
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} else if (selected_fields) {
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process_line_fields(line, disjoint_ranges, delimiter[0]);
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process_line_fields(line, disjoint_ranges, delimiter[0], only_print_delimited_lines);
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} else {
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VERIFY_NOT_REACHED();
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}
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