81 lines
3.2 KiB
Rust
81 lines
3.2 KiB
Rust
use std::env;
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use std::error::Error;
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use std::fs::File;
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use std::io::{Read, BufWriter};
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use std::path::{Path, PathBuf};
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use std::process;
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use typeset::Typesetter;
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use typeset::{font::FileSystemFontProvider, font};
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use typeset::export::pdf::PdfExporter;
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fn main() {
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if let Err(err) = run() {
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eprintln!("error: {}", err);
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process::exit(1);
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}
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}
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/// The actual main function.
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fn run() -> Result<(), Box<Error>> {
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let args: Vec<String> = env::args().collect();
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if args.len() < 2 || args.len() > 3 {
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help_and_quit();
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}
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let source_path = Path::new(&args[1]);
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// Compute the output filename from the input filename by replacing the extension.
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let dest_path = if args.len() <= 2 {
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let stem = source_path.file_stem().ok_or_else(|| "missing destation file name")?;
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let base = source_path.parent().ok_or_else(|| "missing destation folder")?;
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base.join(format!("{}.pdf", stem.to_string_lossy()))
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} else {
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PathBuf::from(&args[2])
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};
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if dest_path == source_path {
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return Err("source and destination path are the same".into());
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}
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let mut src = String::new();
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let mut source_file = File::open(source_path).map_err(|_| "failed to open source file")?;
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source_file.read_to_string(&mut src).map_err(|_| "failed to read from source file")?;
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// Create a typesetter with a font provider that provides the default fonts.
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let mut typesetter = Typesetter::new();
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typesetter.add_font_provider(FileSystemFontProvider::new("../fonts", vec![
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("CMU-SansSerif-Regular.ttf", font!["Computer Modern", Regular, SansSerif]),
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("CMU-SansSerif-Italic.ttf", font!["Computer Modern", Italic, SansSerif]),
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("CMU-SansSerif-Bold.ttf", font!["Computer Modern", Bold, SansSerif]),
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("CMU-SansSerif-Bold-Italic.ttf", font!["Computer Modern", Bold, Italic, SansSerif]),
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("CMU-Serif-Regular.ttf", font!["Computer Modern", Regular, Serif]),
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("CMU-Serif-Italic.ttf", font!["Computer Modern", Italic, Serif]),
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("CMU-Serif-Bold.ttf", font!["Computer Modern", Bold, Serif]),
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("CMU-Serif-Bold-Italic.ttf", font!["Computer Modern", Bold, Italic, Serif]),
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("CMU-Typewriter-Regular.ttf", font!["Computer Modern", Regular, Serif, SansSerif, Monospace]),
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("CMU-Typewriter-Italic.ttf", font!["Computer Modern", Italic, Serif, SansSerif, Monospace]),
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("CMU-Typewriter-Bold.ttf", font!["Computer Modern", Bold, Serif, SansSerif, Monospace]),
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("CMU-Typewriter-Bold-Italic.ttf", font!["Computer Modern", Bold, Italic, Serif, SansSerif, Monospace]),
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("NotoEmoji-Regular.ttf", font!["Noto", Regular, Bold, Italic, SansSerif, Serif, Monospace]),
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]));
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// Typeset the source code.
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let document = typesetter.typeset(&src)?;
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// Export the document into a PDF file.
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let exporter = PdfExporter::new();
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let dest_file = File::create(&dest_path)?;
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exporter.export(&document, BufWriter::new(dest_file))?;
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Ok(())
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}
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/// Print a usage message and quit.
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fn help_and_quit() {
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let name = env::args().next().unwrap_or("typst".to_string());
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println!("usage: {} source [destination]", name);
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process::exit(0);
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}
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