From 07abfc96b568ba83d0d3f15de5311fdfa92f0288 Mon Sep 17 00:00:00 2001 From: Alek Ratzloff Date: Tue, 25 Feb 2020 14:19:12 -0500 Subject: [PATCH] Add structopt for arg parsing Signed-off-by: Alek Ratzloff --- Cargo.lock | 105 ++++++++++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 1 + src/main.rs | 27 +++++++------- 3 files changed, 120 insertions(+), 13 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index fe8d84a..2890c91 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -8,6 +8,24 @@ dependencies = [ "memchr 2.3.2 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "ansi_term" +version = "0.11.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)", +] + +[[package]] +name = "atty" +version = "0.2.14" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "hermit-abi 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)", + "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)", + "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "autocfg" version = "1.0.0" @@ -99,6 +117,20 @@ dependencies = [ "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "clap" +version = "2.33.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)", + "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)", + "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)", + "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)", + "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)", + "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)", + "vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "crossbeam-channel" version = "0.4.2" @@ -179,6 +211,22 @@ dependencies = [ "regex 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "heck" +version = "0.3.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)", +] + +[[package]] +name = "hermit-abi" +version = "0.1.8" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "ignore" version = "0.4.11" @@ -380,6 +428,7 @@ dependencies = [ "regex 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)", "rerun_except 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)", "snafu 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)", + "structopt 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)", ] [[package]] @@ -540,6 +589,33 @@ name = "static_assertions" version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" +[[package]] +name = "strsim" +version = "0.8.0" +source = "registry+https://github.com/rust-lang/crates.io-index" + +[[package]] +name = "structopt" +version = "0.3.9" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)", + "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)", + "structopt-derive 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)", +] + +[[package]] +name = "structopt-derive" +version = "0.4.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)", + "proc-macro-error 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)", + "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)", + "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)", + "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "syn" version = "1.0.14" @@ -560,6 +636,14 @@ dependencies = [ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "textwrap" +version = "0.11.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "thread_local" version = "1.0.1" @@ -603,6 +687,11 @@ dependencies = [ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "unicode-segmentation" +version = "1.6.0" +source = "registry+https://github.com/rust-lang/crates.io-index" + [[package]] name = "unicode-width" version = "0.1.7" @@ -613,6 +702,11 @@ name = "unicode-xid" version = 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"5430ea8977e2f0ed62cd37239cd713415022b240095c2f9187c32823015ae52f" diff --git a/Cargo.toml b/Cargo.toml index bd6cdeb..8fafac7 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -9,6 +9,7 @@ build = "build.rs" # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] +structopt = "0.3" bitflags = "1" byteorder = "1" lazy_static = "1" diff --git a/src/main.rs b/src/main.rs index 61f6664..0054bf7 100644 --- a/src/main.rs +++ b/src/main.rs @@ -3,21 +3,21 @@ mod common; mod vm; -use std::{env, fs, io, process}; +use structopt::StructOpt; +use std::{fs, io, process, path::{Path, PathBuf}}; + +#[derive(StructOpt, Debug)] +struct Options { + // maybe some other options: + // * debug + #[structopt(name = "FILE", parse(from_os_str))] + input: PathBuf, +} type Result = std::result::Result>; -fn get_input_string() -> io::Result { - let args: Vec = env::args().collect(); - if args.len() <= 1 { - println!( - "usage: {} file.asm", - args.get(0).map(String::as_str).unwrap_or("rasp") - ); - process::exit(1); - } else { - fs::read_to_string(&args[1]) - } +fn get_input_string(path: impl AsRef) -> io::Result { + fs::read_to_string(path.as_ref()) } fn main() -> Result<()> { @@ -28,7 +28,8 @@ fn main() -> Result<()> { syn::{lexer, parser}, } }; - let text = get_input_string()?; + let opt = Options::from_args(); + let text = get_input_string(&opt.input)?; let lexerdef = lexer::lexerdef(); let lexer = lexerdef.lexer(&text); let (res, errors) = parser::parse(&lexer);