initial build & commit

This commit is contained in:
Valerie Wolfe 2022-06-07 21:41:24 -04:00
commit e195668eb8
4 changed files with 138 additions and 0 deletions

1
.gitignore vendored Normal file
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/target

65
Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "bitflags"
version = "1.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
[[package]]
name = "evalexpr"
version = "7.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d4fd7bd9e32c1205549decf6f36772d7b606a579b26afaffa335ae148151a5d"
[[package]]
name = "libc"
version = "0.2.126"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "quickmaths"
version = "0.1.0"
dependencies = [
"evalexpr",
"termion",
]
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"bitflags",
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"redox_syscall",
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version = "1.5.6"
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dependencies = [
"libc",
"numtoa",
"redox_syscall",
"redox_termios",
]

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Cargo.toml Normal file
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[package]
name = "quickmaths"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
evalexpr = "7.2.0"
termion = "1.5.6"

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src/main.rs Normal file
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use std::{env, io::stdin};
use evalexpr::{
//context_map,
eval_with_context_mut,
ContextWithMutableVariables,
HashMapContext,
Value,
};
use termion::{color, style};
fn main() {
//let mut context = context_map! {}.unwrap();
let mut context = HashMapContext::new();
let expressions: Vec<String> = env::args().skip(1).collect();
if expressions.len() == 0 {
loop {
let mut i_line = String::new();
let line_result = stdin().read_line(&mut i_line);
if line_result.is_err() { break; }
let line = i_line.trim().to_string();
if line.is_empty() { break; }
let result = do_eval(line, &mut context);
println!("{}{}{}", result.0, color::Fg(color::Reset), style::Reset);
}
} else {
for expression in expressions {
let result = do_eval(expression, &mut context);
println!("{}{}{}", result.0, color::Fg(color::Reset), style::Reset);
}
}
}
fn do_eval(i_expression: String, context: &mut HashMapContext) -> (String, Option<Value>) {
let expression = i_expression.as_str();
let i_result = eval_with_context_mut(expression, context);
if i_result.is_err() {
return (
format!("{}🞪 {}{}", color::Fg(color::Red), style::Bold, expression),
None,
);
}
let result = i_result.ok().unwrap();
if result.is_empty() {
return (
format!("{}{}{}", color::Fg(color::Green), style::Bold, expression),
None,
);
}
return (
format!(
"{}{}{}{} = {}",
style::Faint,
style::Italic,
expression,
style::Reset,
result
),
Some(result),
);
}