From 92ab4d008738292bb1669a572fba0da2e1f74dc8 Mon Sep 17 00:00:00 2001 From: Emmanuel BERNAT Date: Thu, 12 Sep 2024 08:55:26 +0200 Subject: [PATCH] Commit initial --- .gitignore | 1 + .idea/.gitignore | 5 + .idea/cat.iml | 11 +++ .idea/modules.xml | 8 ++ .idea/vcs.xml | 6 ++ Cargo.lock | 237 ++++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 9 ++ src/main.rs | 110 +++++++++++++++++++++ 8 files changed, 387 insertions(+) create mode 100644 .gitignore create mode 100644 .idea/.gitignore create mode 100644 .idea/cat.iml create mode 100644 .idea/modules.xml create mode 100644 .idea/vcs.xml create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 src/main.rs diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ea8c4bf --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +/target diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..b58b603 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,5 @@ +# Default ignored files 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--git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..48e2141 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,110 @@ +use clap::Parser; +use std::fs::File; +use std::io::BufRead; +use std::io::BufReader; + +#[derive(Parser, Debug)] +#[command(version)] +struct Args { + /// Numérotation des lignes non vides + #[arg(short = 'b', long)] + number_nonblank: bool, + + /// Affichage d'un $ à la fin de chaque ligne + #[arg(short = 'E', long)] + show_ends: bool, + + /// Numérotation des lignes + #[arg(short, long)] + number: bool, + + /// Suppression des lignes vides répétées + #[arg(short, long)] + squeeze_blank: bool, + + /// Affichage des tabulations avec la séquence ^I + #[arg(short = 'T', long)] + show_tabs: bool, + + /// Ignoré (conservé par compatibilité) + #[arg(short = 'u')] + _u: bool, + + /// Utilisation de la notation ^ et M- sauf pour LFD et TAB + #[arg(short = 'v', long)] + show_nonprinting: bool, + + /// Equivalent à -vET + #[arg(short = 'A', long)] + show_all: bool, + + /// Equivalent à -vE + #[arg(short = 'e')] + show_all_no_tabs: bool, + + /// Equivalent à -vT + #[arg(short = 't')] + show_all_no_ends: bool, + + /// Liste de fichiers + files: Vec, +} + +fn main() { + let mut args = Args::parse(); + + args.show_nonprinting = args.show_nonprinting || args.show_all || args.show_all_no_tabs || args.show_all_no_ends; + args.show_ends = args.show_ends || args.show_all || args.show_all_no_tabs; + args.show_tabs = args.show_tabs || args.show_all || args.show_all_no_ends; + args.number_nonblank = args.number_nonblank && !args.number; + + //args.files = vec!(String::from("fichier1")); + + let line_ends = if args.show_ends { "$" } else { "" }; + let mut line_number = 0; + let mut line_prefix: String; + let mut last_was_blank = false; + + for file_path in args.files { + let f = File::open(file_path).unwrap(); + let mut reader = BufReader::new(f); + loop { + let mut line = String::new(); + if let Ok(len) = reader.read_line(&mut line) { + if len==0 { + break; + } + + let line_is_blank = line.len()==0; + let skip_line = args.squeeze_blank && last_was_blank && line_is_blank; + + if args.number || (args.number_nonblank && !line_is_blank) { + line_number += 1; + line_prefix = format!("{:>6} ", line_number); + if line_prefix.len()<8 { + line_prefix.push(' '); + } + } else { + line_prefix = String::from(""); + } + + let mut line_to_display = String::from(""); + for c in line.to_string().chars() { + match c as u8 { + 9 => if args.show_tabs { line_to_display.push(c) } else { line_to_display.push_str("^I") } + 10 => {}, + 0 ..= 127 => line_to_display.push(c), + 128 ..= 255 => if args.show_nonprinting { line_to_display.push_str("M^"); line_to_display.push((c as u8 - 128) as char) } else { line_to_display.push(c) }, + _ => {} + }; + } + + if !skip_line { + println!("{}{}{}", line_prefix, line_to_display, line_ends); + } + + last_was_blank = line_is_blank; + } + } + } +}