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//! //! the match line, regex text filter like a grep of linux command. //! //! ```text //! Usage: //! aki-mline [options] //! //! match line, regex text filter like a grep. //! //! Options: //! --color <when> use markers to highlight the matching strings //! -e, --exp <exp> regular expression //! -s, --str <string> simple string match //! -i, --inverse output non-matching lines. //! //! -H, --help display this help and exit //! -V, --version display version information and exit //! //! Option Parameters: //! <when> 'always', 'never', or 'auto' //! <exp> regular expression //! <string> simple string, non regular expression //! //! Environments: //! AKI_MLINE_COLOR_SEQ_ST color start sequence specified by ansi //! AKI_MLINE_COLOR_SEQ_ED color end sequence specified by ansi //! ``` //! //! # Examples //! //! ### Command line example 1 //! //! Extract "`arm.*-gnu`" from the rustup target list //! //! ```text //! rustup target list | aki-mline -e "arm.*-gnu" //! ``` //! //! result output : //! //! ![out rustup image] //! //! [out rustup image]: https://raw.githubusercontent.com/aki-akaguma/aki-mline/main/img/out-rustup-1.png //! //! //! ### Command line example 2 //! //! Extract "`apple`" from the rustup target list //! //! ```text //! rustup target list | aki-mline -s "apple" //! ``` //! //! result output : //! //! ![out rustup image 2] //! //! [out rustup image 2]: https://raw.githubusercontent.com/aki-akaguma/aki-mline/main/img/out-rustup-2.png //! //! ### Library example //! //! See [`fn execute()`] for this library examples. //! //! [`fn execute()`]: crate::execute //! #[macro_use] extern crate anyhow; pub mod conf; mod run; mod util; use flood_tide::HelpVersion; use runnel::*; use std::io::Write; const TRY_HELP_MSG: &str = "Try --help for help."; /// /// execute mline /// /// params: /// - sioe: stream in/out/err /// - program: program name. etc. "mline" /// - args: parameter arguments. /// /// return: /// - ok: () /// - err: anyhow /// /// example: /// /// ``` /// use runnel::RunnelIoeBuilder; /// /// let r = libaki_mline::execute(&RunnelIoeBuilder::new().build(), /// "mline", &["-e", "Error:.*"]); /// ``` /// pub fn execute(sioe: &RunnelIoe, prog_name: &str, args: &[&str]) -> anyhow::Result<()> { let env = conf::EnvConf::new(); execute_env(sioe, prog_name, args, &env) } pub fn execute_env( sioe: &RunnelIoe, prog_name: &str, args: &[&str], env: &conf::EnvConf, ) -> 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, &env) }