72 lines
2.5 KiB
Rust
72 lines
2.5 KiB
Rust
pub mod args {
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use super::enums::*;
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use clap::{arg, ColorChoice, Parser};
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#[derive(Parser, Debug)]
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#[command(author, version, about, long_about = None, color = ColorChoice::Always)]
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pub struct Arguments {
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/// The art mode to use
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#[arg(short, long, default_value = "normal-ascii")]
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pub mode: Mode,
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#[arg(long, default_value = "stdout", alias = "mo")]
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pub output_method: OutputMethod,
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/// The image to convert to ASCII art
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pub image: String,
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/// The character to use for drawing the image (lighter to darker)
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/// You can user one character if you uses the color mode
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#[arg(short, long, default_value = " .,-~!;:=*&%$@#")]
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pub characters: String,
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/// The output scale (1 is the original size)
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#[arg(short, long, default_value = "4")]
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pub scale: u32,
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/// Enstablish how much wide is the output images, in columns. Overrides `scale`
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#[arg(short, long, default_value= None )]
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pub width: Option<u32>,
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/// The background color to use
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#[arg(short, long, default_value = None)]
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pub background: Option<String>,
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/// The output file to write to (if output_method is file)
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#[arg(short, long, default_value = "ascii_image.txt")]
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pub output: String,
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}
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impl Arguments {
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pub fn validate(&self) -> Result<(), String> {
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if self.characters.is_empty() {
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return Err("No characters provided".to_string());
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} else if self.characters.len() == 1 {
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if self.mode == Mode::NormalAscii {
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return Err("One character provided but mode is normal-ascii".to_string());
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}
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} else if self.characters.len() > 32 {
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return Err("Too many characters provided, max is 32".to_string());
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}
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Ok(())
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}
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}
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}
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pub mod enums {
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use clap::ValueEnum;
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#[derive(Copy, Clone, ValueEnum, Debug, PartialOrd, Eq, PartialEq)]
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pub enum Mode {
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/// Normal ASCII art
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#[clap(alias = "n")]
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NormalAscii,
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/// Colored ASCII art, the colors are based on the terminal colors
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#[clap(alias = "c")]
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Colored,
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}
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#[derive(Copy, Clone, ValueEnum, Debug, PartialOrd, Eq, PartialEq)]
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pub enum OutputMethod {
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/// Save the ascii art to a file
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#[clap(alias = "f")]
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File,
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/// Print the ascii art to the terminal
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#[clap(alias = "s")]
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Stdout,
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}
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}
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