entrigraph(1)
convert C source code to use trigraphs
SYNOPSIS
entrigraph [file ...]
DESCRIPTION
This program converts a C program to use trigraphs.
A trigraph is a three character sequence that encodes a single character.
A trigraph begins with two question marks.
The third character is `/' (the trigraph means `\'), '(' (`['), ')' (`]'), '<' (`{'), '>' (`}'), '!' (`|'), ''' (`^'), '-' (`~'), '=' (`/'), or '/' (`\').
