README- TSpec
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ArgParser
command line argument parser
utils
command line
parser
Author
Version
0.1.10
License
Apache-2.0
Repository
Last updated
last year
Downloads
107K
#ArgParser
A simple command-line parser for MoonBit. It uses a declarative style to specify
the command-line interface.
#Usage
test {
let argv = ["-o", "out.mbt", "file1", "file2", "--verbose"]
let verbose = @ref.new(false)
let output = @ref.new("output")
let files = []
let usage =
#| Simple CLI tool
#| usage:
#| mytool [options] <file1> [<file2>] ... -o <output>
#|
@ArgParser.parse(
[
("--verbose", "-v", Set(verbose), "enable verbose message"),
("--output", "-o", Set_string(output), "output file name"),
],
file => files.push(file),
usage,
argv,
)
inspect(verbose.val, content="true")
inspect(output.val, content="out.mbt")
inspect(files[0], content="file1")
inspect(files[1], content="file2")
}#help options
ArgParser will automatically generate --help and -h options.
#Related Libraries
Looking for more powerful CLI tool? Check out clap.
Spec
pub(all) enum Spec {
Unit(() -> Unit)
String((String) -> Unit)
Set_string(Ref[String])
Set(Ref[Bool])
Clear(Ref[Bool])
}Matched option handler that used to interpret options.
Unit - handle with callback
String - handle associated value with callback
Set_string - set option to associated value
Set - set reference to true
Clear - set reference to false
parse
Parse argument list for CLI tools
Match OptionName or LongOptionName then interpret with Spec and
use Description to generate -h or --help options message.
speclist - (LongOptionName, OptionName, Spec, Description) of Array
rest - rest arguments handler
usage_msg - synopsis usage
argv - input argument list
Apache-2.0
Updated last year
107K downloads