NAME¶
htags - generate hypertext from source code.
SYNOPSIS¶
htags [-acCDfFghInosTvwx][-d
dbpath][-m
name][-S
cgidir][-t
title][
dir]
DESCRIPTION¶
Htags makes hypertext of C, C++, Yacc, Java, PHP and Assembly source
code.
In advance of using this command, you must execute
gtags(1) from the root
directory of the source tree. Then you can execute
htags from the same
place.
Htags makes an directory named ´HTML´ and generates
hypertext in it. You can start browsing from ´HTML/index.html´.
Since
htags generates static hypertext as long as the
-D or
-f option is not specified, you can move it anywhere and browse it by
any browser without web server.
You must use same parser for both
gtags(1) and
htags. If you use
the default parser, it is not necessary to consider for it.
OPTIONS¶
If you are new on htags, it is recommended to invoke with the
--suggest
option. With the option,
htags use popular options instead of you.
The following options are available:
- -a, --alphabet
- Make an alphabetical function index which is suitable for a
large project.
- --caution
- Include caution message to prohibit downloading.
- -c, --compact
- Compress html files by gzip(1). You need to set up a
web server so that gzip(1) is invoked for each compressed file. See
´HTML/.htaccess´ that is generated by htags.
- -C
- Make compressed html files with a html.gz suffix.
Debian systems can usually uncompress these transparently without the need
for a CGI helper.
- --cvsweb url
- Include cvsweb URL. url is used as base of URL. When
directory ´CVS´ exists in the root directory of source project,
the content of ´CVS/Repository´ is used as the relative path
from the base.
- --cvsweb-cvsroot cvsroot
- Specifies cvsroot in cvsweb URL.
- -D, --dynamic
- Generate object lists dynamically using CGI program. By
default, object lists are generated statically. Though this option
decrease both the size and the generation time of the hypertext, you need
to set up a web server, and you cannot move the hypertext from the source
directory.
- -d, --dbpath dbpath
- Specifies the directory in which ´GTAGS´ and
´GRTAGS´ exist. The default is the current directory.
- --disable-grep
- Disable grep in the search form(-f,--form).
- -F, --frame
- Use frame for each part of the contents.
- -f, --form
- Support search form using CGI program. You need to set up a
web server, and you cannot move the hypertext from the source
directory.
- --full-path
- List file names with full path in the file index. By
default, list just the last component of a path.
- -g, --gtags
- Execute gtags(1) before creating hypertext. The
-v, -w and dbpath are passed to gtags.
- --gtagsconf file
- Load user's configuration from file.
- --gtagslabel label
- label is used for the label of configuration file.
The default is default.
- -h, --func-header[=position]
- Insert function header for each function. By default,
htags doesn't generates it. You can specify the position using
position argument, which allows one of before, right and after. The
default position is after.
- -I, --icon
- Use icons instead of text for some links.
- --insert-footer file
- Insert custom footer derived from file before
</body> tag.
- --insert-header file
- Insert custom header derived from file after
<body> tag.
- --item-order spec
- Specify order of items in the top page. The spec is
a string consists of item signs in order. Each sign means as follows:
c: caution, s: search form, m: mains, d:
definition, f: files. The default is csmdf.
- -m, --main-func name
- Specify the main function name. The default is main.
- -n, --line-number[=columns]
- Print line numbers. By default, doesn't print line numbers.
The default value of columns is 4.
- --no-map-file
- Doesn't generate ´MAP´ and ´FILEMAP´
file. By default, htags generates them.
- -o, --other
- Pick up not only source files but also other files except
for binary files.
- -S, --secure-cgi cgidir
- Write CGI programs into the cgidir to realize a
centralised CGI program. Script alias is ´/cgi-bin´ by default.
You can overwrite this value using config variable script_alias in
´gtags.conf´.
- -s, --symbol
- Make anchors not only for object definitions and references
but also other symbols.
- --statistics
- Print statistics information.
- --suggest
- Htags selects popular options instead of beginners.
It is equivalent to '-afghInosTxv --show-position' now.
- -T, --table-flist[=fields]
- Generate file list using <table> tag. The
fields is used for field number in a line. The default is 5.
- -t, --title title
- The title of this hypertext. The default is the last
component of the current directory.
- --table-list
- List tags using <table> tag.
- --tabs number
- Tab stop. The default is 8.
- -v, --verbose
- Verbose mode.
- -w, --warning
- Print warning messages.
- -x, --xhtml[=version]
- Generate XHTML hypertext instead of HTML. If the
--frame option is specified then generate XHTML-1.0 Frameset for
index.html and generate XHTML-1.0 Transitional for other files, else if
version is 1.1 or config variable xhtml_version is set to 1.1 then
generate XHTML-1.1 else XHTML 1.0 Transitional.
- dir
- The directory in which hypertext is generated. The default
is the current directory.
EXAMPLES¶
$ gtags -v
$ htags -sanohITvt 'Welcome to XXX source tour!'
$ firefox HTML/index.html
$ htags --suggest
FILES¶
- ´GTAGS´
- Tag file for object definitions.
- ´GRTAGS´
- Tag file for object references.
- ´GSYMS´
- Tag file for other symbols.
- ´GPATH´
- Tag file for path of source files.
- ´/etc/gtags.conf´,
´$HOME/.globalrc´
- Configuration file.
- ´HTML/index.html´
- Index file for hypertext.
- ´HTML/MAP´
- Mapping file for converting tag into path of hypertext.
External systems can utilize this file.
- ´HTML/FILEMAP´
- Mapping file for converting file name into path of
hypertext. External systems can utilize this file.
- ´HTML/style.css´
- Style sheet file. This file is generated when the
--xhtml option is specified.
ENVIRONMENT¶
The following environment variables affect the execution of
htags:
- TMPDIR
- If this variable is set, its value is used as the directory
to make temporary files. The default is ´/tmp´.
- GTAGSCONF
- If this variable is set, its value is used as the
configuration file. The default is ´$HOME/.globalrc´.
- GTAGSLABEL
- If this variable is set, its value is used as the label of
configuration file. The default is default.
- GTAGSCACHE
- If this variable is set, its value is used as the size of
B-tree cache. The default is 5000000 (bytes).
- GTAGSFORCECPP
- If this variable is set, each file whose suffix is 'h' is
treated as a C++ source file.
CONFIGURATION¶
The following configuration variables affect the execution of
htags: If
the
--xhtml option is specified then all definitions of HTML tag are
ignored. Instead, you can customize the appearance using style sheet file
(´style.css´).
- body_begin(string)
- Begin tag for body. The default is '<body text=#191970
bgcolor=#f5f5dc vlink=gray>'.
- body_end(string)
- End tag for body. The default is '</body>'.
- brace_begin(string)
- Begin tag for brace. The default is '<font
color=red>'.
- brace_end(string)
- End tag for brace. The default is '</font>'.
- colorize_warned_line(boolean)
- Colorize warned line using warned_line_begin and
warned_line_end. The default is false.
- comment_begin(string)
- Begin tag for comments. The default is '<i><font
color=green>'.
- comment_end(string)
- End tag for comments. The default is
'</font></i>'.
- copy_files(boolean)
- Copy files instead of linking. When the -f option is
used, htags make links of tag files in ´cgi-bin´
directory by default.
- datadir(string)
- Shared data directory. The default is '/usr/local/share'
but you can change the value using configure script. Htags look up
template files in the 'gtags' directory in this data directory.
- definition_header(no|before|right|after)
- Position of function header. The default is 'no'.
- disable_grep(boolean)
- Disable grep in search form(-f,--form). The default is
false.
- dynamic(boolean)
- Generate object list dynamically.
- enable_idutils(boolean)
- Enable idutils in search form(-f,--form). The default is
false.
- flist_fields(number)
- Field number of file index. The default is 5.
- full_path(boolean)
- List file names with full path in file index. By default,
list just the last component of a path.
- gzipped_suffix(string)
- Suffix for compressed html file. The default is
'ghtml'.
- hr(string)
- Horizontal rules. The default is '<hr>'.
- htags_options(string)
- Default options for htags. This value is inserted
into the head of arguments.
- include_file_suffixes(comma separated list)
- Suffixes of include file. The default is
'h,hxx,hpp,H,inc.php'.
- langmap(comma separated list)
- Language mapping. Each comma-separated map consists of the
language name, a colon, and a list of file extensions. Default mapping is
'c:.c.h,yacc:.y,asm:.s.S,java:.java,cpp:.c++.cc.cpp.cxx.hxx.hpp.C.H,php:.php.php3.phtml'.
- ncol(number)
- Columns of line number. The default is 4.
- normal_suffix(string)
- Suffix for normal html file. The default is 'html'.
- no_map_file(boolean)
- Doesn't generate ´MAP´ and ´FILEMAP´
file. The default is false.
- other_files(boolean)
- File index includes not only source files but also other
files. The default is false.
- position_begin(string)
- Begin tag for position mark. The default is '<font
color=gray>'.
- position_end(string)
- End tag for position mark. The default is
'</font>'.
- reserved_begin(string)
- Begin tag for reserved word. The default is
'<b>'.
- reserved_end(string)
- End tag for reserved word. The default is
'</b>'.
- script_alias(string)
- Script alias for safe cgi script (-S).
- sharp_begin(string)
- Begin tag for 'define'. The default is '<font
color=darkred>'.
- sharp_end(string)
- End tag for 'define'. The default is '</font>'.
- show_position(boolean)
- Show position per function definition. The default is
false.
- table_begin(string)
- Begin tag for table. The default is '<table>'.
- table_end(string)
- End tag for table. The default is '</table>'.
- table_flist(boolean)
- Use <table> tag for file index. The default is
false.
- table_list(boolean)
- List tags using <table> tag. The default is
false.
- tabs(number)
- Tab stop. The default is 8.
- title_begin(string)
- Begin tag for Title. The default is '<h1><font
color=#cc0000>'.
- title_end(string)
- End tag for Title. The default is
'</font></h1>'.
- warned_line_begin(string)
- Begin tag for line which htags warned. The default is
'<span style="background-color:yellow">'.
- warned_line_end(string)
- End tag for line which htags warned. The default is
'</span>'.
- xhtml_version(1.0|1.1)
- XHTML version. 1.0 and 1.1 are acceptable. The default is
1.0.
DIAGNOSTICS¶
Htags exits with a non 0 value if an error occurred, 0 otherwise.
Verbose message has important level. The most important level is 0, the second
it 1 and so on. All the message has level numbers leading blanks.
SEE ALSO¶
gtags-parser(1),
global(1),
gtags(1).
GNU GLOBAL source code tag system
(
http://www.gnu.org/software/global/).
BUG¶
Generated hypertext is VERY LARGE. In advance, check the space of your disk.
PHP support is far from complete.
AUTHOR¶
Tama Communications Corporation.
HISTORY¶
The
htags command appeared in FreeBSD 2.2.2.