[英]clap capture all remaining arguments in one field in Derive API?
我正在使用带有以下代码的 clap v3.1.18。
#[derive(Parser, Debug)]
#[clap(author, version, about = ABOUT_TEXT, long_about = Some(ABOUT_TEXT))]
struct Args {
/// The root folder on local filesystem to scan
#[clap(short, long, default_value_t = utils::get_current_dir())]
folder: String,
/// Max number of recursive folders to scan
#[clap(short, long, default_value_t = 5)]
depth: u8,
/// Regular expression to include files. Only files whose name matches the specified regexp will be listed. E.g. to only list *.dll and *.exe files, you can specify `((\\.dll)$)|((\\.exe)$)`
#[clap(short, long, default_value(".+"))]
include: String,
/// Regular expression to include files. Regular expression to exclude files and directories. Files or directories whose name matches this regexp will be skipped
#[clap(short, long, default_value("(^~)|(^\\.)|((\\.tmp)$)|((\\.log)$)"))]
exclude: String,
/// Command line to start child process
#[clap(multiple_occurrences=true, use_delimiter=false)]
command: String,
}
let args = Args::parse();
最后一个command
,我想获取命令行中的所有剩余部分,包括空格。 但是当前代码不起作用,它被第一个空格终止。
我想我应该设置.setting(AppSettings::TrailingVarArg)
,但在 Derive API 中找不到这样做的方法。 请问这怎么做?
谢谢@MeetTitan,这是我的代码最终有效
#[derive(Parser, Debug)]
#[clap(author, version, about = ABOUT_TEXT, long_about = Some(ABOUT_TEXT), trailing_var_arg=true)]
struct Args {
/// The root folder on local filesystem to scan
#[clap(short, long, default_value_t = utils::get_current_dir())]
folder: String,
/// Max number of recursive folders to scan
#[clap(short, long, default_value_t = 5)]
depth: u8,
/// Regular expression to include files. Only files whose name matches the specified regexp will be listed. E.g. to only list *.dll and *.exe files, you can specify `((\\.dll)$)|((\\.exe)$)`
#[clap(short, long, default_value(".+"))]
include: String,
/// Regular expression to include files. Regular expression to exclude files and directories. Files or directories whose name matches this regexp will be skipped
#[clap(short, long, default_value("(^~)|(^\\.)|((\\.tmp)$)|((\\.log)$)"))]
exclude: String,
/// Command line to start child process
#[clap(long, multiple_values=true, allow_hyphen_values=true)]
run: Vec<String>,
}
派生参考指出:
例如
#[clap(arg_required_else_help(true))]
将转换为cmd.arg_required_else_help(true)
使用它,我们可以像这样导出.setting(AppSettings::TrailingVarArg)
,(更准确地说是App::trailing_var_arg()
):
#[clap(... trailing_var_arg=true)]
struct Args { ... }
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