Crate retex_kpath 

A native implementation of the parts of kpathsea that TeX engines use.

kpathsea finds files in a TeX installation from search paths defined in texmf.cnf. It speeds lookups up with ls-R databases. This crate reproduces its semantics so that retex finds exactly the same files as luatex:

• texmf.cnf files are found through TEXMFCNF. Definitions in earlier files win. VAR.progname takes precedence over VAR, and environment variables take precedence over both.
• Values are expanded: $VAR/${VAR}, then braces {a,b}, then ~.
• In a path element, a leading !! means “look only in the ls-R database” and a trailing or inner // means “any subdirectory”.
• A lookup of a name with no standard suffix first tries the name with each suffix of the file format, then the name as given.

Structs

Kpathsea

A configured kpathsea instance.

Options

Configuration for constructing a Kpathsea instance.

ProcessEnv

The process environment.

Enums

Error

Errors raised while setting up the search machinery.

FileFormat

A kind of file to look up, mirroring kpathsea’s kpse_file_format_type.

Traits

Env

Source of environment variables, injectable for tests.

Functions

shared

Wraps a Kpathsea for sharing.

Type Aliases

Shared

A kpathsea instance shared by several users (engine, font loader).