visit-file-mode is an Emacs minor mode that allows you to jump to a file based on a path, line and column.

For example, given a buffer containing an OCaml stack trace:

Raised at Stdlib__List.assoc in file "src/list.ml", line 191, characters 10-25

or a Rust stack trace:

   9: garden::main
             at ./src/main.rs:473:13
  10: core::ops::function::FnOnce::call_once
             at /home/wilfred/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5

We can visit this file (list.ml, function.rs) on this exact line and column. If the path is relative, we open the file relative to default-directory.

When the minor mode is active, occurrences in the buffer of patterns that visit-file-mode understands are highlighted.