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const std = @import("std");
const clap = @import("clap.zig");
const debug = std.debug;
const os = std.os;
const Clap = clap.Clap;
const Command = clap.Command;
const Argument = clap.Argument;
const Options = struct {
print_values: bool,
a: i64,
b: u64,
c: u8,
d: []const u8,
};
// Output on windows:
// zig-clap> .\example.exe -a 1
// zig-clap> .\example.exe -p -a 1
// a = 1
// zig-clap> .\example.exe -pa 1
// a = 1
// zig-clap> .\example.exe -pd friend
// d = friend
// zig-clap> .\example.exe -pd=friend
// d = friend
// zig-clap> .\example.exe -p -d=friend
// d = friend
pub fn main() !void {
const parser = comptime Clap(Options).init(
Options {
.print_values = false,
.a = 0,
.b = 0,
.c = 0,
.d = "",
}
)
.with("program_name", "My Test Command")
.with("author", "Hejsil")
.with("version", "v1")
.with("about", "Prints some values to the screen... Maybe.")
.with("command", Command.init("command")
.with("arguments",
[]Argument {
Argument.arg("a")
.with("help", "Set the a field of Option.")
.with("takes_value", clap.parse.int(i64, 10)),
Argument.arg("b")
.with("help", "Set the b field of Option.")
.with("takes_value", clap.parse.int(u64, 10)),
Argument.arg("c")
.with("help", "Set the c field of Option.")
.with("takes_value", clap.parse.int(u8, 10)),
Argument.arg("d")
.with("help", "Set the d field of Option.")
.with("takes_value", clap.parse.string),
Argument.field("print_values")
.with("help", "Print all not 0 values.")
.with("short", 'p')
.with("long", "print-values"),
}
)
);
const args = try os.argsAlloc(debug.global_allocator);
defer os.argsFree(debug.global_allocator, args);
const options = try parser.parse(args[1..]);
if (options.print_values) {
if (options.a != 0) debug.warn("a = {}\n", options.a);
if (options.b != 0) debug.warn("b = {}\n", options.b);
if (options.c != 0) debug.warn("c = {}\n", options.c);
if (options.d.len != 0) debug.warn("d = {}\n", options.d);
}
}
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