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seq: Port to LibMain

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Kenneth Myhra 2022-03-29 22:24:00 +02:00 • committed by Brian Gianforcaro
parent 1ee93e0fe7
commit c843f2e3a5
Notes: sideshowbarker 2024-07-17 16:30:34 +09:00
2 changed files with 19 additions and 22 deletions
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1
Userland/Utilities/CMakeLists.txt
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@ -178,6 +178,7 @@ target_link_libraries(rev LibMain)
target_link_libraries(rm LibMain)
target_link_libraries(rmdir LibMain)
target_link_libraries(run-tests LibRegex LibCoredump LibMain)
target_link_libraries(seq LibMain)
target_link_libraries(shot LibGUI LibMain)
target_link_libraries(shuf LibMain)
target_link_libraries(shutdown LibMain)

40
Userland/Utilities/seq.cpp
View file

@ -6,10 +6,11 @@
#include <AK/Format.h>
#include <AK/StdLibExtras.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
const char* const g_usage = R"(Usage:
seq [-h|--help]
@ -40,19 +41,14 @@ static double get_double(const char* name, const char* d_string, int* number_of_
return d;
}
int main(int argc, const char* argv[])
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
if (pledge("stdio", nullptr) < 0) {
perror("pledge");
return 1;
}
if (unveil(nullptr, nullptr) < 0) {
perror("unveil");
return 1;
}
TRY(Core::System::pledge("stdio"));
TRY(Core::System::unveil(nullptr, nullptr));
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-h") == 0) {
for (size_t i = 1; i < arguments.strings.size(); i++) {
if (arguments.strings[i] == "--help"sv || arguments.strings[i] == "-h") {
out("HELP");
print_usage(stdout);
exit(0);
}
@ -60,32 +56,32 @@ int main(int argc, const char* argv[])
double start = 1, step = 1, end = 1;
int number_of_start_decimals = 0, number_of_step_decimals = 0, number_of_end_decimals = 0;
switch (argc) {
switch (arguments.strings.size()) {
case 2:
end = get_double(argv[0], argv[1], &number_of_end_decimals);
end = get_double(arguments.argv[0], arguments.argv[1], &number_of_end_decimals);
break;
case 3:
start = get_double(argv[0], argv[1], &number_of_start_decimals);
end = get_double(argv[0], argv[2], &number_of_end_decimals);
start = get_double(arguments.argv[0], arguments.argv[1], &number_of_start_decimals);
end = get_double(arguments.argv[0], arguments.argv[2], &number_of_end_decimals);
break;
case 4:
start = get_double(argv[0], argv[1], &number_of_start_decimals);
step = get_double(argv[0], argv[2], &number_of_step_decimals);
end = get_double(argv[0], argv[3], &number_of_end_decimals);
start = get_double(arguments.argv[0], arguments.argv[1], &number_of_start_decimals);
step = get_double(arguments.argv[0], arguments.argv[2], &number_of_step_decimals);
end = get_double(arguments.argv[0], arguments.argv[3], &number_of_end_decimals);
break;
default:
warnln("{}: unexpected number of arguments", argv[0]);
warnln("{}: unexpected number of arguments", arguments.argv[0]);
print_usage(stderr);
return 1;
}
if (step == 0) {
warnln("{}: increment must not be 0", argv[0]);
warnln("{}: increment must not be 0", arguments.argv[0]);
return 1;
}
if (__builtin_isnan(start) || __builtin_isnan(step) || __builtin_isnan(end)) {
warnln("{}: start, step, and end must not be NaN", argv[0]);
warnln("{}: start, step, and end must not be NaN", arguments.argv[0]);
return 1;
}