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perf: removes some unneeded allocations

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This commit is contained in:
Kevin K 2015-07-29 16:25:00 -04:00
parent 80baab2672
commit 93e915dfe3
7 changed files with 106 additions and 98 deletions
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70
src/app.rs
View file

@ -11,6 +11,9 @@ use fmt::Format;
#[cfg(feature = "suggestions")]
use strsim;
const INTERNAL_ERROR_MSG: &'static str = "Internal Error: Failed to write string. Please \
consider filing a bug report!";
/// Produces a string from a given list of possible values which is similar to
/// the passed in value `v` with a certain confidence.
/// Thus in a list of possible values like ["foo", "bar"], the value "fop" will yield
@ -138,7 +141,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// let prog = App::new("myprog")
/// # .get_matches();
/// ```
pub fn new(n: &'ar str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn new(n: &'ar str) -> Self {
App {
name: n.to_owned(),
name_slice: n,
@ -188,7 +191,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .author("Me, me@mymain.com")
/// # ;
/// ```
pub fn author(mut self, a: &'a str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn author(mut self, a: &'a str) -> Self {
self.author = Some(a);
self
}
@ -207,7 +210,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .bin_name("my_binary")
/// # ;
/// ```
pub fn bin_name(mut self, a: &str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn bin_name(mut self, a: &str) -> Self {
self.bin_name = Some(a.to_owned());
self
}
@ -223,7 +226,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .about("Does really amazing things to great people")
/// # ;
/// ```
pub fn about(mut self, a: &'ab str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn about(mut self, a: &'ab str) -> Self {
self.about = Some(a);
self
}
@ -241,7 +244,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .after_help("Does really amazing things to great people")
/// # ;
/// ```
pub fn after_help(mut self, h: &'h str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn after_help(mut self, h: &'h str) -> Self {
self.more_help = Some(h);
self
}
@ -260,7 +263,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .subcommands_negate_reqs(true)
/// # ;
/// ```
pub fn subcommands_negate_reqs(mut self, n: bool) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn subcommands_negate_reqs(mut self, n: bool) -> Self {
self.subcmds_neg_reqs = n;
self
}
@ -277,7 +280,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .subcommand_required(true)
/// # ;
/// ```
pub fn subcommand_required(mut self, n: bool) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn subcommand_required(mut self, n: bool) -> Self {
self.no_sc_error = n;
self
}
@ -293,7 +296,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .version("v0.1.24")
/// # ;
/// ```
pub fn version(mut self, v: &'v str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn version(mut self, v: &'v str) -> Self {
self.version = Some(v);
self
}
@ -319,7 +322,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .usage("myapp [-clDas] <some_file>")
/// # ;
/// ```
pub fn usage(mut self, u: &'u str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn usage(mut self, u: &'u str) -> Self {
self.usage_str = Some(u);
self
}
@ -358,7 +361,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// work Do some work")
/// # ;
/// ```
pub fn help(mut self, h: &'u str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn help(mut self, h: &'u str) -> Self {
self.help_str = Some(h);
self
}
@ -379,7 +382,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// // Using an uppercase `H` instead of the default lowercase `h`
/// .help_short("H")
/// # ;
pub fn help_short(mut self, s: &str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn help_short(mut self, s: &str) -> Self {
self.help_short = s.trim_left_matches(|c| c == '-')
.chars()
.nth(0);
@ -402,7 +405,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// // Using a lowercase `v` instead of the default capital `V`
/// .version_short("v")
/// # ;
pub fn version_short(mut self, s: &str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn version_short(mut self, s: &str) -> Self {
self.version_short = s.trim_left_matches(|c| c == '-')
.chars()
.nth(0);
@ -422,7 +425,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .arg_required_else_help(true)
/// # ;
/// ```
pub fn arg_required_else_help(mut self, tf: bool) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn arg_required_else_help(mut self, tf: bool) -> Self {
self.help_on_no_args = tf;
self
}
@ -445,7 +448,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// // running `myprog test --version` will display
/// // "myprog-test v1.1"
/// ```
pub fn global_version(mut self, gv: bool) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn global_version(mut self, gv: bool) -> Self {
self.global_ver = gv;
self
}
@ -468,7 +471,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .get_matches();
/// // running `myprog test --version` will display unknown argument error
/// ```
pub fn versionless_subcommands(mut self, vers: bool) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn versionless_subcommands(mut self, vers: bool) -> Self {
self.versionless_scs = Some(vers);
self
}
@ -488,7 +491,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .get_matches();
/// // running `myprog --help` will display a unified "docopt" or "getopts" style help message
/// ```
pub fn unified_help_message(mut self, uni_help: bool) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn unified_help_message(mut self, uni_help: bool) -> Self {
self.unified_help = uni_help;
self
}
@ -513,7 +516,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .arg_required_else_help(true)
/// # ;
/// ```
pub fn wait_on_error(mut self, w: bool) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn wait_on_error(mut self, w: bool) -> Self {
self.wait_on_error = w;
self
}
@ -536,7 +539,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .subcommand_required_else_help(true)
/// # ;
/// ```
pub fn subcommand_required_else_help(mut self, tf: bool) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn subcommand_required_else_help(mut self, tf: bool) -> Self {
self.help_on_no_sc = tf;
self
}
@ -568,7 +571,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// )
/// # ;
/// ```
pub fn arg(mut self, a: Arg<'ar, 'ar, 'ar, 'ar, 'ar, 'ar>) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn arg(mut self, a: Arg<'ar, 'ar, 'ar, 'ar, 'ar, 'ar>) -> Self {
self.add_arg(a);
self
}
@ -825,7 +828,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// # ;
/// ```
pub fn args(mut self, args: Vec<Arg<'ar, 'ar, 'ar, 'ar, 'ar, 'ar>>)
-> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
-> Self {
for arg in args.into_iter() {
self = self.arg(arg);
}
@ -848,7 +851,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .arg_from_usage("-c --conf=<config> 'Sets a configuration file to use'")
/// # ;
/// ```
pub fn arg_from_usage(mut self, usage: &'ar str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn arg_from_usage(mut self, usage: &'ar str) -> Self {
self = self.arg(Arg::from_usage(usage));
self
}
@ -874,7 +877,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// )
/// # ;
/// ```
pub fn args_from_usage(mut self, usage: &'ar str) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn args_from_usage(mut self, usage: &'ar str) -> Self {
for l in usage.lines() {
self = self.arg(Arg::from_usage(l.trim()));
}
@ -913,7 +916,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .add_all(vec!["ver", "major", "minor","patch"])
/// .required(true))
/// # ;
pub fn arg_group(mut self, group: ArgGroup<'ar, 'ar>) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn arg_group(mut self, group: ArgGroup<'ar, 'ar>) -> Self {
if group.required {
self.required.insert(group.name);
if let Some(ref reqs) = group.requires {
@ -975,7 +978,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// .add_all(vec!["ver", "major", "minor","patch"])
/// .required(true))
/// # ;
pub fn arg_groups(mut self, groups: Vec<ArgGroup<'ar, 'ar>>) -> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
pub fn arg_groups(mut self, groups: Vec<ArgGroup<'ar, 'ar>>) -> Self {
for g in groups {
self = self.arg_group(g);
}
@ -1000,7 +1003,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// # ;
/// ```
pub fn subcommand(mut self, mut subcmd: App<'a, 'v, 'ab, 'u, 'h, 'ar>)
-> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
-> Self {
if subcmd.name == "help" { self.needs_subcmd_help = false; }
if self.versionless_scs.is_some() && self.versionless_scs.unwrap() {
subcmd.versionless_scs = Some(false);
@ -1027,7 +1030,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
/// # ;
/// ```
pub fn subcommands(mut self, subcmds: Vec<App<'a, 'v, 'ab, 'u, 'h, 'ar>>)
-> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
-> Self {
for subcmd in subcmds.into_iter() {
self = self.subcommand(subcmd);
}
@ -1216,6 +1219,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
// after all arguments were parsed, but before any subcommands have been parsed (so as to
// give subcommands their own usage recursively)
fn create_usage(&self, matches: Option<Vec<&'ar str>>) -> String {
use ::std::fmt::Write;
let mut usage = String::with_capacity(75);
usage.push_str("USAGE:\n\t");
if let Some(u) = self.usage_str {
@ -1227,11 +1231,14 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
let r_string = reqs.iter().fold(String::new(), |acc, s| acc + &format!(" {}", s)[..]);
usage.push_str(&format!("{}{}",
write!(&mut usage, "{}{}",
self.usage.clone().unwrap_or(self.bin_name.clone().unwrap_or(self.name.clone())),
r_string)[..]);
r_string
).ok().expect(INTERNAL_ERROR_MSG)
} else {
usage.push_str(&self.usage.clone().unwrap_or(self.bin_name.clone().unwrap_or(self.name.clone()))[..]);
usage.push_str(&*self.usage.clone()
.unwrap_or(self.bin_name.clone()
.unwrap_or(self.name.clone())));
let mut reqs = self.required.iter().map(|n| *n).collect::<Vec<_>>();
// If it's required we also need to ensure all previous positionals are required too
@ -1994,13 +2001,16 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar>{
matches.usage = Some(self.create_usage(None));
if let Some(sc_name) = subcmd_name {
use ::std::fmt::Write;
let mut mid_string = String::new();
if !self.subcmds_neg_reqs {
let mut hs = self.required.iter().map(|n| *n).collect::<Vec<_>>();
matches.args.keys().map(|k| hs.push(*k)).collect::<Vec<_>>();
let reqs = self.get_required_from(hs);
mid_string.push_str(&reqs.iter().fold(String::new(), |acc, s| acc + &format!(" {}", s)[..])[..])
for s in reqs.iter() {
write!(&mut mid_string, " {}", s).ok().expect(INTERNAL_ERROR_MSG);
}
}
mid_string.push_str(" ");
if let Some(ref mut sc) = self.subcommands.get_mut(&sc_name) {

42
src/args/arg.rs
View file

@ -112,7 +112,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// Arg::with_name("conifg")
/// # .short("c")
/// # ).get_matches();
pub fn with_name(n: &'n str) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn with_name(n: &'n str) -> Self {
Arg {
name: n,
short: None,
@ -313,7 +313,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("conifg")
/// .short("c")
/// # ).get_matches();
pub fn short(mut self, s: &str) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn short(mut self, s: &str) -> Self {
self.short = s.trim_left_matches(|c| c == '-').chars().nth(0);
self
}
@ -337,7 +337,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("conifg")
/// .long("config")
/// # ).get_matches();
pub fn long(mut self, l: &'l str) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn long(mut self, l: &'l str) -> Self {
self.long = Some(l.trim_left_matches(|c| c == '-'));
self
}
@ -355,7 +355,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("conifg")
/// .help("The config file used by the myprog")
/// # ).get_matches();
pub fn help(mut self, h: &'h str) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn help(mut self, h: &'h str) -> Self {
self.help = Some(h);
self
}
@ -379,7 +379,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("conifg")
/// .required(true)
/// # ).get_matches();
pub fn required(mut self, r: bool) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn required(mut self, r: bool) -> Self {
self.required = r;
self
}
@ -399,7 +399,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # let myprog = App::new("myprog").arg(Arg::with_name("conifg")
/// .conflicts_with("debug")
/// # ).get_matches();
pub fn conflicts_with(mut self, name: &'r str) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn conflicts_with(mut self, name: &'r str) -> Self {
if let Some(ref mut vec) = self.blacklist {
vec.push(name);
} else {
@ -425,7 +425,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// .conflicts_with_all(&config_conflicts)
/// # ).get_matches();
pub fn conflicts_with_all<T, I>(mut self, names: I)
-> Arg<'n, 'l, 'h, 'g, 'p, 'r>
-> Self
where T: AsRef<str> + 'r,
I: IntoIterator<Item=&'r T> {
if let Some(ref mut vec) = self.blacklist {
@ -449,7 +449,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # let myprog = App::new("myprog").arg(Arg::with_name("conifg")
/// .requires("debug")
/// # ).get_matches();
pub fn requires(mut self, name: &'r str) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn requires(mut self, name: &'r str) -> Self {
if let Some(ref mut vec) = self.requires {
vec.push(name);
} else {
@ -474,7 +474,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// .requires_all(&config_reqs)
/// # ).get_matches();
pub fn requires_all<T, I>(mut self, names: I)
-> Arg<'n, 'l, 'h, 'g, 'p, 'r>
-> Self
where T: AsRef<str> + 'r,
I: IntoIterator<Item=&'r T> {
if let Some(ref mut vec) = self.requires {
@ -500,7 +500,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("conifg")
/// .takes_value(true)
/// # ).get_matches();
pub fn takes_value(mut self, tv: bool) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn takes_value(mut self, tv: bool) -> Self {
self.takes_value = tv;
self
}
@ -522,7 +522,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("conifg")
/// .index(1)
/// # ).get_matches();
pub fn index(mut self, idx: u8) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn index(mut self, idx: u8) -> Self {
self.index = Some(idx);
self
}
@ -545,7 +545,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("debug")
/// .multiple(true)
/// # ).get_matches();
pub fn multiple(mut self, multi: bool) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn multiple(mut self, multi: bool) -> Self {
self.multiple = multi;
self
}
@ -570,7 +570,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("debug")
/// .global(true)
/// # ).get_matches();
pub fn global(mut self, g: bool) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn global(mut self, g: bool) -> Self {
self.global = g;
self
}
@ -590,7 +590,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("debug")
/// .empty_values(true)
/// # ).get_matches();
pub fn empty_values(mut self, ev: bool) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn empty_values(mut self, ev: bool) -> Self {
self.empty_vals = ev;
self
}
@ -612,7 +612,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// .possible_values(&mode_vals)
/// # ).get_matches();
pub fn possible_values<T, I>(mut self, names: I)
-> Arg<'n, 'l, 'h, 'g, 'p, 'r>
-> Self
where T: AsRef<str> + 'p,
I: IntoIterator<Item=&'p T> {
if let Some(ref mut vec) = self.possible_vals {
@ -635,7 +635,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("debug").index(1)
/// .group("mode")
/// # ).get_matches();
pub fn group(mut self, name: &'g str) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn group(mut self, name: &'g str) -> Self {
self.group = Some(name);
self
}
@ -658,7 +658,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("debug").index(1)
/// .number_of_values(3)
/// # ).get_matches();
pub fn number_of_values(mut self, qty: u8) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn number_of_values(mut self, qty: u8) -> Self {
self.num_vals = Some(qty);
self
}
@ -681,7 +681,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("debug").index(1)
/// .max_values(3)
/// # ).get_matches();
pub fn max_values(mut self, qty: u8) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn max_values(mut self, qty: u8) -> Self {
if qty < 2 {
panic!("Arguments with max_values(qty) qty must be > 1. Prefer \
takes_value(true) for arguments with only one value, or flags for arguments \
@ -713,7 +713,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// # Arg::with_name("debug").index(1)
/// .min_values(2)
/// # ).get_matches();
pub fn min_values(mut self, qty: u8) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
pub fn min_values(mut self, qty: u8) -> Self {
if qty < 1 {
panic!("Arguments with min_values(qty) qty must be > 0. Prefer flags for arguments \
with 0 values.");
@ -748,7 +748,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
/// .value_names(&val_names)
/// # ).get_matches();
pub fn value_names<T, I>(mut self, names: I)
-> Arg<'n, 'l, 'h, 'g, 'p, 'r>
-> Self
where T: AsRef<str> + 'n,
I: IntoIterator<Item=&'n T> {
if let Some(ref mut vec) = self.val_names {
@ -761,7 +761,7 @@ impl<'n, 'l, 'h, 'g, 'p, 'r> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
}
impl<'n, 'l, 'h, 'g, 'p, 'r, 'z> From<&'z Arg<'n, 'l, 'h, 'g, 'p, 'r>> for Arg<'n, 'l, 'h, 'g, 'p, 'r> {
fn from(a: &'z Arg<'n, 'l, 'h, 'g, 'p, 'r>) -> Arg<'n, 'l, 'h, 'g, 'p, 'r> {
fn from(a: &'z Arg<'n, 'l, 'h, 'g, 'p, 'r>) -> Self {
Arg {
name: a.name,
short: a.short,

8
src/args/argbuilder/flag.rs
View file

@ -29,10 +29,10 @@ pub struct FlagBuilder<'n> {
impl<'n> Display for FlagBuilder<'n> {
fn fmt(&self, f: &mut Formatter) -> Result {
write!(f, "{}", if self.long.is_some() {
format!("--{}", self.long.unwrap())
if let Some(l) = self.long {
write!(f, "--{}", l)
} else {
format!("-{}", self.short.unwrap())
})
write!(f, "-{}", self.short.unwrap())
}
}
}

50
src/args/argbuilder/option.rs
View file

@ -35,32 +35,28 @@ pub struct OptBuilder<'n> {
impl<'n> Display for OptBuilder<'n> {
fn fmt(&self, f: &mut Formatter) -> Result {
write!(f, "{}",
if let Some(ref vec) = self.val_names {
format!("{}{}",
if self.long.is_some() {
format!("--{}", self.long.unwrap())
} else {
format!("-{}", self.short.unwrap())
},
vec.iter().fold(String::new(),|acc, i| acc + &format!(" <{}>",i)[..]) )
} else if let Some(num) = self.num_vals {
format!("{}{}",
if self.long.is_some() {
format!("--{}", self.long.unwrap())
} else {
format!("-{}", self.short.unwrap())
},
(0..num).fold(String::new(), |acc, _| acc + &format!(" <{}>", self.name)[..]) )
} else {
format!("{} <{}>{}",
if self.long.is_some() {
format!("--{}", self.long.unwrap())
} else {
format!("-{}", self.short.unwrap())
},
self.name,
if self.multiple{"..."}else{""})
})
// Write the name such --long or -l
if let Some(l) = self.long {
try!(write!(f, "--{}", l));
} else {
try!(write!(f, "-{}", self.short.unwrap()));
}
// Write the values such as <name1> <name2>
if let Some(ref vec) = self.val_names {
for n in vec.iter() {
try!(write!(f, " <{}>", n));
}
} else {
let num = self.num_vals.unwrap_or(1);
for _ in (0..num) {
try!(write!(f, " <{}>", self.name));
}
if self.multiple && num == 1 {
try!(write!(f, "..."));
}
}
Ok(())
}
}

15
src/args/argbuilder/positional.rs
View file

@ -32,10 +32,15 @@ pub struct PosBuilder<'n> {
impl<'n> Display for PosBuilder<'n> {
fn fmt(&self, f: &mut Formatter) -> Result {
write!(f, "{}{}{}{}",
if self.required { "<" } else {"["},
self.name,
if self.required { ">" } else {"]"},
if self.multiple {"..."}else{""})
if self.required {
try!(write!(f, "<{}>", self.name));
} else {
try!(write!(f, "[{}]", self.name));
}
if self.multiple {
try!(write!(f, "..."));
}
Ok(())
}
}

16
src/args/group.rs
View file

@ -62,7 +62,7 @@ impl<'n, 'ar> ArgGroup<'n, 'ar> {
/// # .arg_group(
/// ArgGroup::with_name("conifg")
/// # ).get_matches();
pub fn with_name(n: &'n str) -> ArgGroup<'n, 'ar> {
pub fn with_name(n: &'n str) -> Self {
ArgGroup {
name: n,
required: false,
@ -84,7 +84,7 @@ impl<'n, 'ar> ArgGroup<'n, 'ar> {
/// # ArgGroup::with_name("conifg")
/// .add("config")
/// # ).get_matches();
pub fn add(mut self, n: &'ar str) -> ArgGroup<'n, 'ar> {
pub fn add(mut self, n: &'ar str) -> Self {
self.args.insert(n);
self
}
@ -101,7 +101,7 @@ impl<'n, 'ar> ArgGroup<'n, 'ar> {
/// # ArgGroup::with_name("conifg")
/// .add_all(vec!["config", "input", "output"])
/// # ).get_matches();
pub fn add_all(mut self, ns: Vec<&'ar str>) -> ArgGroup<'n, 'ar> {
pub fn add_all(mut self, ns: Vec<&'ar str>) -> Self {
for n in ns {
self = self.add(n);
}
@ -123,7 +123,7 @@ impl<'n, 'ar> ArgGroup<'n, 'ar> {
/// # ArgGroup::with_name("conifg")
/// .required(true)
/// # ).get_matches();
pub fn required(mut self, r: bool) -> ArgGroup<'n, 'ar> {
pub fn required(mut self, r: bool) -> Self {
self.required = r;
self
}
@ -144,7 +144,7 @@ impl<'n, 'ar> ArgGroup<'n, 'ar> {
/// # ArgGroup::with_name("conifg")
/// .requires("config")
/// # ).get_matches();
pub fn requires(mut self, n: &'ar str) -> ArgGroup<'n, 'ar> {
pub fn requires(mut self, n: &'ar str) -> Self {
if let Some(ref mut reqs) = self.requires {
reqs.insert(n);
} else {
@ -171,7 +171,7 @@ impl<'n, 'ar> ArgGroup<'n, 'ar> {
/// # ArgGroup::with_name("conifg")
/// .requires_all(vec!["config", "input"])
/// # ).get_matches();
pub fn requires_all(mut self, ns: Vec<&'ar str>) -> ArgGroup<'n, 'ar> {
pub fn requires_all(mut self, ns: Vec<&'ar str>) -> Self {
for n in ns {
self = self.requires(n);
}
@ -194,7 +194,7 @@ impl<'n, 'ar> ArgGroup<'n, 'ar> {
/// # ArgGroup::with_name("conifg")
/// .conflicts_with("config")
/// # ).get_matches();
pub fn conflicts_with(mut self, n: &'ar str) -> ArgGroup<'n, 'ar> {
pub fn conflicts_with(mut self, n: &'ar str) -> Self {
if let Some(ref mut confs) = self.conflicts {
confs.insert(n);
} else {
@ -221,7 +221,7 @@ impl<'n, 'ar> ArgGroup<'n, 'ar> {
/// # ArgGroup::with_name("conifg")
/// .conflicts_with_all(vec!["config", "input"])
/// # ).get_matches();
pub fn conflicts_with_all(mut self, ns: Vec<&'ar str>) -> ArgGroup<'n, 'ar> {
pub fn conflicts_with_all(mut self, ns: Vec<&'ar str>) -> Self {
for n in ns {
self = self.conflicts_with(n);
}

3
src/usageparser.rs
View file

@ -51,11 +51,8 @@ impl<'u> Iterator for UsageParser<'u> {
}
if self.e > self.usage.len() { return None }
// self.e += 1;
let name = &self.usage[self.s..self.e];
return Some(UsageToken::Name(name, if c == '<' { Some(true) } else { None }));
},
Some('\'') => {