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//! sort lines of text. You can use regex to specify the KEY. //! //! ```text //! Usage: //! aki-resort [options] //! //! sort lines of text. //! //! Ordering options: //! -r, --reverse reverse the result of comparisons //! --according-to <word> sort according to WORD: string, numeric, month, version //! //! Other options: //! -e, --exp <exp> regular expression. sort via this match point. //! -u, --unique output only the first line of an equal. //! --max-buffer <size> max buffer size. if reading size is more than <size>, then it not output, quit and display error message. //! //! -H, --help display this help and exit //! -V, --version display version information and exit //! //! Examples: //! This sort via utf-8 code: //! cat file1.txt | aki-resort //! This sort via 1st chunk of numeric character according to numeric: //! cat file1.txt | aki-resort -e "[0-9]+" --according-to numeric //! ``` //! //! # Examples //! //! The input data used in this example looks like this: //! //! ```text //! cat fixtures/fruit.txt //! ``` //! //! result output: //! ```text //! Apple:33:3.3:good:Mar //! Orange:222:1.1.2:good:Jan //! Cherry:4:4:good:Oct //! Kiwi:1111:1.1.11:good:Jun //! ``` //! //! ## Example 1: simple sort //! //! This sort via utf-8 code. //! //! command line: //! ```text //! cat fixtures/fruit.txt | aki-resort //! ``` //! //! result output: //! ```text //! Apple:33:3.3:good:Mar //! Cherry:4:4:good:Oct //! Kiwi:1111:1.1.11:good:Jun //! Orange:222:1.1.2:good:Jan //! ``` //! //! ## Example 2: numeric sort //! //! This sort via 1st chunk of numeric character according to numeric. //! //! command line: //! ```text //! cat fixtures/fruit.txt | aki-resort -e "[0-9]+" --according-to numeric //! ``` //! //! result output: //! ```text //! Cherry:4:4:good:Oct //! Apple:33:3.3:good:Mar //! Orange:222:1.1.2:good:Jan //! Kiwi:1111:1.1.11:good:Jun //! ``` //! //! ## Example 3: version sort //! //! This sort via 1st capture of version character according to version. //! //! command line: //! ```text //! cat fixtures/fruit.txt | aki-resort -e "^[^:]+:[^:]+:([^:]+)" --according-to version //! ``` //! //! result output: //! ```text //! Orange:222:1.1.2:good:Jan //! Kiwi:1111:1.1.11:good:Jun //! Apple:33:3.3:good:Mar //! Cherry:4:4:good:Oct //! ``` //! //! ## Example 4: month sort //! //! This sort via 1st capture of month character according to month. //! //! command line: //! ```text //! cat fixtures/fruit.txt | aki-resort -e ":([^:]+)$" --according-to month //! ``` //! //! result output: //! ```text //! Orange:222:1.1.2:good:Jan //! Apple:33:3.3:good:Mar //! Kiwi:1111:1.1.11:good:Jun //! Cherry:4:4:good:Oct //! ``` //! //! # Library example //! //! See [`fn execute()`] for this library examples. //! //! [`fn execute()`]: crate::execute #[macro_use] extern crate lazy_static; #[macro_use] extern crate anyhow; mod conf; mod run; mod sort; mod util; use flood_tide::HelpVersion; use runnel::RunnelIoe; use std::io::Write; const TRY_HELP_MSG: &str = "Try --help for help."; /// execute resort /// /// params: /// - sioe: stream in/out/err /// - program: program name. etc. "resort" /// - args: parameter arguments. /// /// return: /// - ok: () /// - err: anyhow /// /// # Examples /// /// ## Example 1: simple sort /// /// This sort via utf-8 code. /// /// ```rust /// use runnel::RunnelIoeBuilder; /// /// let r = libaki_resort::execute(&RunnelIoeBuilder::new().build(), /// "resort", &[]); /// ``` /// /// ## Example 2: numeric sort /// /// This sort via 1st chunk of numeric character according to numeric. /// /// ```rust /// use runnel::RunnelIoeBuilder; /// /// let r = libaki_resort::execute(&RunnelIoeBuilder::new().build(), /// "resort", &["-e", r"[0-9]+", "--according-to", "numeric"]); /// ``` /// 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!("{}\n", err)); return Ok(()); } } return Err(anyhow!("{}\n{}", errs, TRY_HELP_MSG)); } }; run::run(sioe, &conf) }