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/*!
output the statistics of text, like a wc of linux command.
# Features
- output the statistics of text, like a wc of linux command.
- minimum support rustc 1.56.1 (59eed8a2a 2021-11-01)
# Command help
```text
aki-stats --help
```
```text
Usage:
aki-stats [options]
output the statistics of text, like a wc of linux command.
Options:
-a, --all output the all statistics of text
-b, --bytes output the byte counts
-c, --chars output the unicode character counts
-l, --lines output the line counts
-m, --max-line-bytes output the maximum byte counts of line
-w, --words output the word counts
--locale <loc> locale of number format: en, fr, ... posix
-?, --query <q> display available names of locale and exit
-H, --help display this help and exit
-V, --version display version information and exit
Examples:
Outputs the line count:
echo -e "acbde fghi\njkln opqr" | aki-stats -l
Outputs the byte count:
echo -e "acbde fghi\njkln opqr" | aki-stats -b
Outputs the word count:
echo -e "acbde fghi\njkln opqr" | aki-stats -w
```
# Quick install
1. you can install this into cargo bin path:
```text
cargo install aki-stats
```
2. you can build debian package:
```text
cargo deb
```
and install **.deb** into your local repository of debian package.
# Examples
## Example 1: the all statistics
Output the all statistics of input text.
command line:
```text
cat fixtures/sherlock.txt | aki-stats -a
```
result output:
```text
lines:"26", bytes:"1207", chars:"1207", words:"226", max:"83"
```
## Example 2: the line count
Output the only line count.
command line:
```text
cat fixtures/sherlock.txt | aki-stats -l
```
result output:
```text
lines:"26"
```
## Example 3: the byte count with locale en
Output the only byte count.
command line:
```text
cat fixtures/sherlock.txt | aki-stats -b --locale en
```
result output:
```text
bytes:"1,207"
```
# Library example
See [`fn execute()`] for this library examples.
[`fn execute()`]: crate::execute
*/
#[macro_use]
extern crate anyhow;
mod conf;
mod run;
mod util;
use flood_tide::HelpVersion;
use runnel::RunnelIoe;
use std::io::Write;
const TRY_HELP_MSG: &str = "Try --help for help.";
/// execute stats
///
/// params:
/// - sioe: stream in/out/err
/// - program: program name. etc. "stats"
/// - args: parameter arguments.
///
/// return:
/// - ok: ()
/// - err: anyhow
///
/// # Examples
///
/// ## Example 1: the all statistics
///
/// Output the all statistics of input text.
///
/// ```rust
/// use runnel::RunnelIoeBuilder;
///
/// let r = libaki_stats::execute(&RunnelIoeBuilder::new().build(),
/// "stats", &["-a"]);
/// ```
///
/// ## Example 2: the line count
///
/// Output the only line count.
///
/// ```rust
/// use runnel::RunnelIoeBuilder;
///
/// let r = libaki_stats::execute(&RunnelIoeBuilder::new().build(),
/// "stats", &["-l"]);
/// ```
///
pub fn execute(sioe: &RunnelIoe, prog_name: &str, args: &[&str]) -> anyhow::Result<()> {
let conf = match conf::parse_cmdopts(prog_name, args) {
Ok(conf) => conf,
Err(errs) => {
for err in errs.iter().take(1) {
if err.is_help() || err.is_version() {
let _r = sioe.pout().lock().write_fmt(format_args!("{err}\n"));
return Ok(());
}
}
return Err(anyhow!("{}\n{}", errs, TRY_HELP_MSG));
}
};
run::run(sioe, &conf)
}