One of the venerable BSD document writing tools, which I am forking for my own use on MacOS, and perhaps for use in other projects.

This source was gathered from NetBSD.org, src.usr.bin/deroff.

No effort is currently being make to track the original, which is decades old.

• Rewrote the Makefile.

• Modified the man page to reflect changed behavior.

• Handles the .ig request properly.

• Ignores troff requests in block text. Request processing should be incorporated into the general request handling framework, but the present code lacks generality.

• Put out macro args that follow a text string if long enough. Long macro args that follow text are probably additional text no matter if they aren't alphabetic (numbers or punctuation).

• Process in-line equations even in .so inclusions. This seems reasonable since eqn input usually is piped from soelim, so in-line equations should get processed there by troff too.

• Expanded the list of troff requests ignored by deroff.

  • if, ie, el (conditional)
  • sp (vertical space)
  • nr (register assign)
  • ds (string definition)

• Did not handle EQ/EN delimited in-line equation text

  • did not turn in-line equation into "x"
  • did not output text after in-line equation properly
  • did not handle in-line equation at end of line-ending sentence

  deroff handles these omissions properly now.

• Fix mistaken parsing of \\$n in macro definition as in-line equation.

• Print out what is in blocks of text in the various macro packages (-me, -ms, etc.) by default. Previously, these were, oddly, left out.