HP UX Operating Systems 205

deroff(1)

NAME

deroff - remove nroff, tbl, and neqn constructs

SYNOPSIS

deroff [-mx] [-w] [-i] [ ®le ... ]

DESCRIPTION

deroff reads each ®le in sequence and removes all nroff requests, macro calls, backslash constructs, neqn constructs (between .EQ and .EN lines, and between delimiters Ð see neqn(1)), and tbl descriptions (see tbl(1)), replacing them with white space (blanks and blank lines), and writes the remainder of the ®le on the standard output. deroff follows chains of included ®les (.so and .nx nroff/troff formatter commands); if a ®le has already been included, a .so naming that ®le is ignored and a .nx naming that ®le terminates execution. If no input ®le is given, deroff reads the standard input.

The -moption can be followed by an m, s, or l. The -mmoption causes the macros be interpreted such that only running text is output (that is, no text from macro lines). The -mloption forces the -mmoption and also causes deletion of lists associated with the mm macros.

If the -woption is given, the output is a word list, one ``word'' per line, with all other characters deleted. Otherwise, the output follows the original, with the deletions mentioned above. In text, a ``word'' is any multi-byte character string or any string that contains at least two letters and is composed of letters, digits, ampersands (&), and apostrophes ('); In a macro call, however, a ``word'' is a multi-byte character string or a string that begins with at least two letters and contains a total of at least three letters. Delimiters are any characters other than letters, digits, apostrophes, and ampersands. Trailing apostrophes and ampersands are removed from ``words.''

If the -ioption is speci®ed, deroff ignores the .so and .nx nroff/troff commands.

EXTERNAL INFLUENCES

Environment Variables

LC_CTYPE determines the interpretation of text and ®lenames as single and/or multi-byte characters. Note that multi-byte punctuation characters are not recognized when using the -woption.

LC_MESSAGES determines the language in which messages are displayed.

If LC_CTYPE or LC_MESSAGES is not speci®ed in the environment or is set to the empty string, the value of LANG is used as a default for each unspeci®ed or empty variable. If LANG is not speci®ed or is set to the empty string, a default of "C" (see lang(5)) is used instead of LANG.

If any internationalization variable contains an invalid setting, deroff behaves as if all internationalization variables are set to "C". See environ(5).

International Code Set Support

Single- and multi-byte character code sets are supported.

WARNINGS

deroff is not a complete nroff interpreter; thus it can be confused by subtle constructs. Most such errors result in too much rather than too little output.

The -mloption does not handle nested lists correctly.

AUTHOR

deroff was developed by the University of California, Berkeley.