version 1.2, 2017/01/17 01:47:51 |
version 1.16, 2018/06/25 14:13:54 |
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.\" $Id$ |
.\" $Id$ |
.\" |
.\" |
.\" Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org> |
.\" Copyright (c) 2014, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org> |
.\" |
.\" |
.\" Permission to use, copy, modify, and distribute this software for any |
.\" Permission to use, copy, modify, and distribute this software for any |
.\" purpose with or without fee is hereby granted, provided that the above |
.\" purpose with or without fee is hereby granted, provided that the above |
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.Ft void |
.Ft void |
.Fn print_gen_decls "struct html *h" |
.Fn print_gen_decls "struct html *h" |
.Ft void |
.Ft void |
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.Fn print_gen_comment "struct html *h" "struct roff_node *n" |
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.Ft void |
.Fn print_gen_head "struct html *h" |
.Fn print_gen_head "struct html *h" |
.Ft struct tag * |
.Ft struct tag * |
.Fo print_otag |
.Fo print_otag |
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.Fa "struct html *h" |
.Fa "struct html *h" |
.Fa "const char *word" |
.Fa "const char *word" |
.Fc |
.Fc |
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.Ft char * |
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.Fo html_make_id |
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.Fa "const struct roff_node *n" |
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.Fc |
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.Ft int |
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.Fo html_strlen |
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.Fa "const char *cp" |
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.Fc |
.Sh DESCRIPTION |
.Sh DESCRIPTION |
The mandoc HTML formatter is not a formal library. |
The mandoc HTML formatter is not a formal library. |
However, as it is compiled into more than one program, in particular |
However, as it is compiled into more than one program, in particular |
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declarations required for the current document type. |
declarations required for the current document type. |
.Pp |
.Pp |
The function |
The function |
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.Fn print_gen_comment |
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prints the leading comments, usually containing a Copyright notice |
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and license, as an HTML comment. |
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It is intended to be called right after opening the |
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.Aq Ic HTML |
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element. |
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Pass the first |
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.Dv ROFFT_COMMENT |
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node in |
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.Fa n . |
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.Pp |
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The function |
.Fn print_gen_head |
.Fn print_gen_head |
prints the opening |
prints the opening |
.Aq Ic META |
.Aq Ic META |
Line 137 Most attributes require one |
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Line 159 Most attributes require one |
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.Va char * |
.Va char * |
argument which becomes the value of the attribute. |
argument which becomes the value of the attribute. |
The arguments have to be given in the same order as the attribute letters. |
The arguments have to be given in the same order as the attribute letters. |
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If an argument is |
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.Dv NULL , |
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the respective attribute is not written. |
.Bl -tag -width 1n -offset indent |
.Bl -tag -width 1n -offset indent |
.It Cm c |
.It Cm c |
Print a |
Print a |
.Cm class |
.Cm class |
attribute. |
attribute. |
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This attribute letter can optionally be followed by the modifier letter |
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.Cm T . |
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In that case, a |
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.Cm title |
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attribute with the same value is also printed. |
.It Cm h |
.It Cm h |
Print a |
Print a |
.Cm href |
.Cm href |
attribute. |
attribute. |
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This attribute letter can optionally be followed by a modifier letter. |
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If followed by |
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.Cm R , |
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it formats the link as a local one by prefixing a |
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.Sq # |
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character. |
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If followed by |
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.Cm I , |
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it interpretes the argument as a header file name |
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and generates a link using the |
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.Xr mandoc 1 |
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.Fl O Cm includes |
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option. |
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If followed by |
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.Cm M , |
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it takes two arguments instead of one, a manual page name and |
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section, and formats them as a link to a manual page using the |
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.Xr mandoc 1 |
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.Fl O Cm man |
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option. |
.It Cm i |
.It Cm i |
Print an |
Print an |
.Cm id |
.Cm id |
Line 155 Print an arbitrary attribute. |
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Line 205 Print an arbitrary attribute. |
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This format letter requires two |
This format letter requires two |
.Vt char * |
.Vt char * |
arguments, the attribute name and the value. |
arguments, the attribute name and the value. |
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The name must not be |
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.Dv NULL . |
.It Cm s |
.It Cm s |
Print a |
Print a |
.Cm style |
.Cm style |
attribute. |
attribute. |
If present, it must be the last format letter. |
If present, it must be the last format letter. |
In contrast to the other format letters, this one does not yet |
In contrast to the other format letters, this one does not yet |
print the value and does not require an argument. |
print the value and does not take an argument. |
Instead, the rest of the format string consists of pairs of |
Instead, the rest of the format string consists of pairs of |
argument type letters and style name letters. |
argument type letters and style name letters. |
.El |
.El |
.Pp |
.Pp |
Argument type letters each require on argument as follows: |
Argument type letters each require one argument as follows: |
.Bl -tag -width 1n -offset indent |
.Bl -tag -width 1n -offset indent |
.It Cm h |
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Requires one |
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.Vt int |
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argument, interpreted as a horizontal length in units of |
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.Dv SCALE_EN . |
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.It Cm s |
.It Cm s |
Requires one |
Requires one |
.Vt char * |
.Vt char * |
Line 181 argument, used as a style value. |
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Line 228 argument, used as a style value. |
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Requires one |
Requires one |
.Vt struct roffsu * |
.Vt struct roffsu * |
argument, used as a length. |
argument, used as a length. |
.It Cm v |
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Requires one |
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.Vt int |
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argument, interpreted as a vertical length in units of |
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.Dv SCALE_VS . |
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.It Cm w |
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Requires one |
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.Vt char * |
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argument, interpreted as an |
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.Xr mdoc 7 Ns -style |
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width specifier. |
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.El |
.El |
.Pp |
.Pp |
Style name letters decide what to do with the preceding argument: |
Style name letters decide what to do with the preceding argument: |
.Bl -tag -width 1n -offset indent |
.Bl -tag -width 1n -offset indent |
.It Cm b |
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Set |
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.Cm margin-bottom |
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to the given length. |
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.It Cm h |
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Set |
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.Cm height |
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to the given length. |
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.It Cm i |
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Set |
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.Cm text-indent |
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to the given length. |
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.It Cm l |
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Set |
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.Cm margin-left |
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to the given length. |
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.It Cm t |
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Set |
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.Cm margin-top |
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to the given length. |
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.It Cm w |
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Set |
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.Cm width |
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to the given length. |
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.It Cm W |
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Set |
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.Cm min-width |
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to the given length. |
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.It Cm \&? |
.It Cm \&? |
The special pair |
The special pair |
.Cm s? |
.Cm s? |
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.Vt char * |
.Vt char * |
arguments. |
arguments. |
The first is the style name, the second its value. |
The first is the style name, the second its value. |
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The style name must not be |
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.Dv NULL . |
.El |
.El |
.Pp |
.Pp |
.Fn print_otag |
.Fn print_otag |
uses the private function |
uses the private function |
.Fn print_attr |
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which in turn uses the private function |
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.Fn print_encode |
.Fn print_encode |
to take care of HTML encoding. |
to take care of HTML encoding. |
If required by the element type, it remembers in |
If required by the element type, it remembers in |
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.Fn print_tagq |
.Fn print_tagq |
functions. |
functions. |
.Pp |
.Pp |
The functions |
The function |
.Fn bufinit , |
.Fn html_make_id |
.Fn bufcat* , |
takes a node containing one or more text children |
and |
and returns a newly allocated string containing the concatenation |
.Fn buffmt* |
of the child strings, with blanks replaced by underscores. |
do not directly produce output but buffer text in the |
If the node |
.Fa buf |
.Fa n |
member of |
contains any non-text child node, |
.Fa h . |
.Fn html_make_id |
They are not used internally by |
returns |
.Pa html.c |
.Dv NULL |
but intended for use by the language-specific formatters |
instead. |
to ease preparation of strings for the |
The caller is responsible for freeing the returned string. |
.Fa p |
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argument of |
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.Fn print_otag |
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and for the |
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.Fa word |
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argument of |
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.Fn print_text . |
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Consequently, these functions do not do any HTML encoding. |
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.Pp |
.Pp |
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The function |
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.Fn html_strlen |
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counts the number of characters in |
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.Fa cp . |
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It is used as a crude estimate of the width needed to display a string. |
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.Pp |
The functions |
The functions |
.Fn html_strlen , |
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.Fn print_eqn , |
.Fn print_eqn , |
.Fn print_tbl , |
.Fn print_tbl , |
and |
and |
Line 340 implementation of common mandoc utility functions |
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Line 345 implementation of common mandoc utility functions |
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.An -nosplit |
.An -nosplit |
The mandoc HTML formatter was written by |
The mandoc HTML formatter was written by |
.An Kristaps Dzonsons Aq Mt kristaps@bsd.lv . |
.An Kristaps Dzonsons Aq Mt kristaps@bsd.lv . |
This manual was written by |
It is maintained by |
.An Ingo Schwarze Aq Mt schwarze@openbsd.org . |
.An Ingo Schwarze Aq Mt schwarze@openbsd.org , |
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who also wrote this manual. |