package pp_loc
Quote and highlight input fragments at a given source location
Install
Dune Dependency
Authors
Maintainers
Sources
pp_loc-v1.0.0.tbz
sha256=ece33db791d5d7fc1e21e77098c766ddb4772984541e3384f68a1e3cf732a015
sha512=32180cfc7bb2664727ad13ef7b0c988d8606ff2f570d9ddf18b46fafd45dcdb5813d7f798e79bf9a3e263c883a8d06bc4aeb7ff95039ff85f5c35f6a144c5bef
README.md.html
pp_loc
Decent error reporting (for example, in a parser, a compiler, ...) typically involves collecting locations, in order to indicate to the user the position of an error in the source file.
This library provides support to additionally quote and highlight the input fragment the input that corresponds to a location (or a set of locations).
This is the same code as in the OCaml compiler implementation (as of version 4.08), but extracted as a standalone library.
Examples
Single-line errors: the offending line is printed back, and the error location is highlighted using carets.
2 | let x = 1 + 1 +. 2 in ()
^^^^^
Multi-line error: the lines that span the location are printed, where the input outside of the error location is replaced by ".".
2 | ......(1 + 1
3 | * 3)...
Documentation
https://armael.github.io/pp_loc/pp_loc/
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