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Userland: Move command-line utilities to Userland/Utilities/

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This commit is contained in:
Andreas Kling 2021-01-12 11:57:58 +01:00
parent c4e2fd8123
commit ececac65c2
142 changed files with 58 additions and 58 deletions
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117
Userland/nl.cpp
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@ -1,117 +0,0 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/String.h>
#include <AK/Vector.h>
#include <LibCore/ArgsParser.h>
#include <stdio.h>
#include <string.h>
enum NumberStyle {
NumberAllLines,
NumberNonEmptyLines,
NumberNoLines,
};
int main(int argc, char** argv)
{
NumberStyle number_style = NumberNonEmptyLines;
int increment = 1;
const char* separator = " ";
int start_number = 1;
int number_width = 6;
Vector<const char*> files;
Core::ArgsParser args_parser;
Core::ArgsParser::Option number_style_option {
true,
"Line numbering style: 't' for non-empty lines, 'a' for all lines, 'n' for no lines",
"body-numbering",
'b',
"style",
[&number_style](const char* s) {
if (!strcmp(s, "t"))
number_style = NumberNonEmptyLines;
else if (!strcmp(s, "a"))
number_style = NumberAllLines;
else if (!strcmp(s, "n"))
number_style = NumberNoLines;
else
return false;
return true;
}
};
args_parser.add_option(move(number_style_option));
args_parser.add_option(increment, "Line count increment", "increment", 'i', "number");
args_parser.add_option(separator, "Separator between line numbers and lines", "separator", 's', "string");
args_parser.add_option(start_number, "Initial line number", "startnum", 'v', "number");
args_parser.add_option(number_width, "Number width", "width", 'w', "number");
args_parser.add_positional_argument(files, "Files to process", "file", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv);
Vector<FILE*> file_pointers;
if (!files.is_empty()) {
for (auto& file : files) {
FILE* file_pointer = fopen(file, "r");
if (!file_pointer) {
fprintf(stderr, "unable to open %s\n", file);
continue;
}
file_pointers.append(file_pointer);
}
} else {
file_pointers.append(stdin);
}
for (auto& file_pointer : file_pointers) {
int line_number = start_number - increment; // so the line number can start at 1 when added below
int previous_character = 0;
int next_character = 0;
while ((next_character = fgetc(file_pointer)) != EOF) {
if (previous_character == 0 || previous_character == '\n') {
if (next_character == '\n' && number_style != NumberAllLines) {
// Skip printing line count on empty lines.
printf("\n");
continue;
}
if (number_style != NumberNoLines)
printf("%*d%s", number_width, (line_number += increment), separator);
else
printf("%*s", number_width, "");
}
putchar(next_character);
previous_character = next_character;
}
fclose(file_pointer);
if (previous_character != '\n')
printf("\n"); // for cases where files have no trailing newline
}
return 0;
}