diff options
author | Ingo Schwarze <schwarze@cvs.openbsd.org> | 2018-04-29 14:27:29 +0000 |
---|---|---|
committer | Ingo Schwarze <schwarze@cvs.openbsd.org> | 2018-04-29 14:27:29 +0000 |
commit | 661ca0805b927cdfa63400bac6b6ff45b86502e0 (patch) | |
tree | 31465f3f54ca2682ccb64c2d8068c633b853d869 /usr.bin/mandoc/mandoc.1 | |
parent | 9c403fcda612d1716147695f8fb8715d65055366 (diff) |
Simpler description of output formats, shortening the manual page by 15 lines.
Avoid the double redirection from -Tutf8 via -Tlocale to -Tascii.
Add LC_CTYPE to the ENVIRONMENT section.
While here, also correct a few inaccuracies and tweak some wordings.
Triggered by a question from Laura Morales <lauretas at mail dot com>.
Diffstat (limited to 'usr.bin/mandoc/mandoc.1')
-rw-r--r-- | usr.bin/mandoc/mandoc.1 | 188 |
1 files changed, 87 insertions, 101 deletions
diff --git a/usr.bin/mandoc/mandoc.1 b/usr.bin/mandoc/mandoc.1 index b3258f514c7..f35b4ecca35 100644 --- a/usr.bin/mandoc/mandoc.1 +++ b/usr.bin/mandoc/mandoc.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: mandoc.1,v 1.147 2018/04/13 19:55:13 schwarze Exp $ +.\" $OpenBSD: mandoc.1,v 1.148 2018/04/29 14:27:28 schwarze Exp $ .\" .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> .\" Copyright (c) 2012, 2014-2018 Ingo Schwarze <schwarze@openbsd.org> @@ -15,7 +15,7 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: April 13 2018 $ +.Dd $Mdocdate: April 29 2018 $ .Dt MANDOC 1 .Os .Sh NAME @@ -34,9 +34,7 @@ .Sh DESCRIPTION The .Nm -utility formats -.Ux -manual pages for display. +utility formats manual pages for display. .Pp By default, .Nm @@ -132,13 +130,32 @@ With other arguments, is silently ignored. .It Fl O Ar options Comma-separated output options. +See the descriptions of the individual output formats for supported +.Ar options . .It Fl T Ar output -Output format. -See -.Sx Output Formats -for available formats. -Defaults to -.Fl T Cm locale . +Select the output format. +Supported values for the +.Ar output +argument are +.Cm ascii , +.Cm html , +the default of +.Cm locale , +.Cm man , +.Cm markdown , +.Cm pdf , +.Cm ps , +.Cm tree , +and +.Cm utf8 . +.Pp +The special +.Fl T Cm lint +mode only parses the input and produces no output. +It implies +.Fl W Cm all +and redirects parser messages, which usually appear on standard +error output, to standard output. .It Fl W Ar level Specify the minimum message .Ar level @@ -196,11 +213,11 @@ and are requested, they can be joined with a comma, for example .Fl W Cm error , Ns Cm stop . .It Ar file -Read input from zero or more files. -If unspecified, reads from stdin. -If multiple files are specified, +Read from the given input file. +If multiple files are specified, they are processed in the given order. +If unspecified, .Nm -will halt with the first failed parse. +reads from standard input. .El .Pp The options @@ -220,69 +237,14 @@ manual. The options .Fl fkl are mutually exclusive and override each other. -.Ss Output Formats -The -.Nm -utility accepts the following -.Fl T -arguments, which correspond to output modes: -.Bl -tag -width "-T markdown" -.It Fl T Cm ascii -Produce 7-bit ASCII output. -See -.Sx ASCII Output . -.It Fl T Cm html -Produce HTML5, CSS1, and MathML output. -See -.Sx HTML Output . -.It Fl T Cm lint -Parse only: produce no output. -Implies -.Fl W Cm all -and redirects parser messages, which usually appear -on standard error output, to standard output. -.It Fl T Cm locale -Encode output using the current locale. -This is the default. -See -.Sx Locale Output . -.It Fl T Cm man -Produce -.Xr man 7 -format output. -See -.Sx Man Output . -.It Fl T Cm markdown -Produce output in -.Sy markdown -format. -See -.Sx Markdown Output . -.It Fl T Cm pdf -Produce PDF output. -See -.Sx PDF Output . -.It Fl T Cm ps -Produce PostScript output. -See -.Sx PostScript Output . -.It Fl T Cm tree -Produce an indented parse tree. -See -.Sx Syntax tree output . -.It Fl T Cm utf8 -Encode output in the UTF\-8 multi-byte format. -See -.Sx UTF\-8 Output . -.El -.Pp -If multiple input files are specified, these will be processed by the -corresponding filter in-order. .Ss ASCII Output -Output produced by +Use .Fl T Cm ascii -is rendered in standard 7-bit ASCII documented in -.Xr ascii 7 . +to force text output in 7-bit ASCII character encoding documented in the +.Xr ascii 7 +manual page, ignoring the +.Xr locale 1 +set in the environment. .Pp Font styles are applied by using back-spaced encoding such that an underlined character @@ -356,7 +318,8 @@ defaults to simple output (via an embedded style-sheet) readable in any graphical or text-based web browser. .Pp -Special characters are rendered in decimal-encoded UTF\-8. +Non-ASCII characters are rendered +as decimal numeric Unicode character references. .Pp The following .Fl O @@ -406,19 +369,28 @@ This must be a valid absolute or relative URI. .El .Ss Locale Output -Locale-depending output encoding is triggered with +By default, +.Nm +automatically selects UTF-8 or ASCII output according to the current +.Xr locale 1 . +If any of the environment variables +.Ev LC_ALL , +.Ev LC_CTYPE , +or +.Ev LANG +are set and the first one that is set +selects the UTF-8 character encoding, it produces +.Sx UTF-8 Output ; +otherwise, it falls back to +.Sx ASCII Output . +This output mode can also be selected explicitly with .Fl T Cm locale . -This is the default. -.Pp -This option is not available on all systems: systems without locale -support, or those whose internal representation is not natively UCS-4, -will fall back to -.Fl T Cm ascii . -See -.Sx ASCII Output -for font style specification and available command-line arguments. .Ss Man Output -Translate input format into +Use +.Fl T Cm man +to translate +.Xr mdoc 7 +input into .Xr man 7 output format. This is useful for distributing manual sources to legacy systems @@ -426,11 +398,7 @@ lacking .Xr mdoc 7 formatters. .Pp -If -.Xr mdoc 7 -is passed as input, it is translated into -.Xr man 7 . -If the input format is +If the input format of a file is .Xr man 7 , the input is copied to the output, expanding any .Xr roff 7 @@ -442,11 +410,11 @@ level controls which .Sx DIAGNOSTICS are displayed before copying the input to the output. .Ss Markdown Output -Translate +Use +.Fl T Cm markdown +to translate .Xr mdoc 7 -input to the -.Sy markdown -format conforming to +input to the markdown format conforming to .Lk http://daringfireball.net/projects/markdown/syntax.text\ "John Gruber's 2004 specification" . The output also almost conforms to the @@ -517,13 +485,24 @@ If an unknown value is encountered, .Ar letter is used. .El -.Ss UTF\-8 Output +.Ss UTF-8 Output Use .Fl T Cm utf8 -to force a UTF\-8 locale. +to force text output in UTF-8 multi-byte character encoding, +ignoring the +.Xr locale 1 +settings in the environment. See -.Sx Locale Output -for details and options. +.Sx ASCII Output +regarding font styles and +.Fl O +arguments. +.Pp +On operating systems lacking locale or wide character support, and +on those where the internal character representation is not UCS-4, +.Nm +always falls back to +.Sx ASCII Output . .Ss Syntax tree output Use .Fl T Cm tree @@ -592,6 +571,13 @@ Meta data is not available in this case. .El .Sh ENVIRONMENT .Bl -tag -width MANPAGER +.It Ev LC_CTYPE +The character encoding +.Xr locale 1 . +When +.Sx Locale Output +is selected, it decides whether to use ASCII or UTF-8 output format. +It never affects the interpretation of input files. .It Ev MANPAGER Any non-empty value of the environment variable .Ev MANPAGER |