Module preprocess 

Input preprocessor: pipe the source file through a user-defined command before tess reads it. Supports --preprocess CMD (CLI) and $LESSOPEN (env var). Pipe-mode only — the command must start with |, and %s is substituted with the source file path (shell-quoted).

Structs

Preprocessor

Enums

PreprocessResult

Functions

run

Run the preprocessor against file_path. Substitutes %s with the path (shell-quoted via single quotes with internal quote escaping). Spawns via sh -c.