deroff.1 (2010 09)

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deroff(1) deroff(1)

NAME

deroff - remove nroff, tbl, and neqn constructs

SYNOPSIS

deroff [-mx ][-w][

-i][ﬁle ... ]

DESCRIPTION

deroff reads each ﬁle in sequence and removes all

nroff requests, macro calls, backslash constructs,

neqn constructs (between .EQ and .EN lines, and between delimiters — see neqn(1)), and

tbl descrip-

tions (see tbl (1)), replacing them with white space (blanks and blank lines), and writes the remainder of

the ﬁle on the standard output.

deroff

follows chains of included ﬁles (.so and .nx nroff/troff

formatter commands); if a ﬁle has already been included, a

.so naming that ﬁle is ignored and a .nx

naming that ﬁle terminates execution. If no input ﬁle is given,

deroff reads the standard input.

The

-m option can be followed by an

m, s,orl. The -mm option causes the macros be interpreted such

that only running text is output (that is, no text from macro lines). The

-ml option forces the -mm

option and also causes deletion of lists associated with the

mm macros.

If the

-w option 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. Delim-

iters are any characters other than letters, digits, apostrophes, and ampersands. Trailing apostrophes

and ampersands are removed from ‘‘words.’’

If the

-i option is speciﬁed, deroff ignores the .so and .nx nroff/troff

commands.

EXTERNAL INFLUENCES

Environment Variables

LC_CTYPE determines the interpretation of text and ﬁlenames as single and/or multi-byte characters.

Note that multi-byte punctuation characters are not recognized when using the -w option.

LC_MESSAGES determines the language in which messages are displayed.

LC_CTYPE or LC_MESSAGES is not speciﬁed in the environment or is set to the empty string, the

value of LANG is used as a default for each unspeciﬁed or empty variable. If

LANG is not speciﬁed 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 internationali-

zation 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

-ml option does not handle nested lists correctly.

AUTHOR

deroff was developed by the University of California, Berkeley.

Summary of content (2 pages)

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deroff(1) deroff(1) NAME deroff - remove nroff, tbl, and neqn constructs SYNOPSIS deroff [-mx ] [-w] [-i] [ file ... ] DESCRIPTION deroff reads each file in sequence and removes all nroff requests, macro calls, backslash constructs, neqn constructs (between .EQ and .EN lines, and between delimiters — see neqn(1)), and tbl descriptions (see tbl (1)), replacing them with white space (blanks and blank lines), and writes the remainder of the file on the standard output.
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(Notes) A (Notes) dA 2 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010