NAME¶
entrigraph - 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 '/' (`\').
SEE ALSO¶
untrigraph(1)
AUTHOR¶
Lars Wirzenius, liw@iki.fi.