sourcefile

A library for concatenating source from multiple files, whilst keeping track of where each new file and line starts.

Examples

Assume the following file is at partial1.py

python x = 1 y = 1

and that the following file is at partial2.py

python x = 1 y = 1 oops

then the following code

```rust extern crate sourcefile;

use sourcefile::SourceFile;

// Assume this function exists, error is offset of unexpected char. fn parse(source: &str) -> Result { // ... }

fn main() { let mut source = SourceFile::new(); source = source.addfile("./partial1.py"); source = source.addfile("./partial2.py");

let ast = match parse(&source.content) {
    Ok(ast) => ast,
    Err(offset) => {
        let pos = source.resolve_offset(offset);
        eprintln!("error compiling in \"{}\", line {}, col {}.", 
                  pos.filename, pos.line + 1, pos.col + 1);
    }
}

} ```

prints

text error compiling in "./partial2.py", line 2, col 7.