VERSION

2.0.12 (16-Apr-2008)

SYNOPSIS

wml [-I ] [-i ] [-D =] [-D ~] [-n] [-r] [-O level] [-o [][@]] [-P ] [-E ] [-t] [-p ] [-W ] [-s] [-v []] [-q] [inputfile]

wml [-V []] [-h]

DESCRIPTION

This is the control program of the Website Language (), a free generation toolkit for Unix, internally consisting of 9 independent languages.

The main idea of is a sequential filtering scheme where each language provides one of 9 processing passes. So wml reads inputfile (or from stdin if inputfile is a dash or completely missing), applies passes 1-9 (or only the passes specified by -p) and finally produces one or more outputfiles.

For more details on this processing scheme read the Introduction under wml_intro(7) and the Tutorial under wml_tutorial(7).

OPTIONS

-I, --include=

Adds a directory to the list of user include paths. Use this option to set the runtime environment for pass 1. See wml_p1_ipp(3) for more details.

-i, --includefile=

Pre-loads a particular include file, i.e. virtually adds a

 #include "PATH"

at the top of inputfile. Use this to automatically include default user include files. If you want to include a systems include file you have to surround the with angle brackets, for instance use `` '' to include the file foo/bar.wml from the system include area. Alternatively you can use the special syntax ``'' as with the directive.

-D, --define==

Defines a variable which can be interpolated in pass 1 () via , in pass 2 (mp4h) via <>, in pass 3 (ePerl) via and in pass 4 ( m4) via . A special variant --define==UNDEF does the opposite, it deletes previous definitions (which may be different than undefining these variables, e.g. with system defined variables).

-D, --define=~

Similar to the above but defines a variable holding a pathname which is autoadjusted (see below). It can be interpolated in the same ways as the variant from above.

-n, --noshebang

This forces to ignore a possibly contained shebang line in inputfile. This is usually used by WMk, because WMk already parsed this line and supplied the options to

-r, --norcfile

This forces to ignore all .wmlrc files.

-c, --nocd

When processes an input file from another directory, it jumps into that directory before parsing .wmlrc files, and jump back to current directory after. If this option is set, no directory change is made and .wmlrc files are read reative to current working directory.

-O, --optimize=

This is the optimization option which is passed directly to pass 8 (htmlfix). It controls the amount of optimization/stripping which is applied to the generated markup code.

-o, --outputfile=:outputfile[@]

This redirects the output to a file. Usually the whole file will be send to stdout (same as ). You can use this option more than once to output to more than one file while using the as a set theory term of slices to determine which contents will be included into each particular output file. The optional is intended for specifying options for a finally applied chmod command. For instance use ``'' to create a file with the execution bit set (Apache's XBitHack feature). See slice(1) for more details.

-P, --prolog=

Runs an prolog filter over the input file. This program receives the data to act on as and has to produce the filtered data on

-E, --epilog=

Runs an epilogue program over the finally resulting output files. Currently the following WML-specific programs are known: htmlinfo, linklint, tidy and weblint. But you can specify any program which is available in your . This program receives the file to act on as its first command line argument. Notice that output is not redirected to this file, so you have to use a wrapper or program specific flags if you want to modify output files.

-t, --settime

This sets the modification time of all output files to the modification time of intputfile plus 1 second. This is useful because Webservers will generate headers and there the editing time is more important than the generation time. The 1 second offset is for the dependencies of Makefiles.

-M, --depend[=]

Output a rule suitable for `make' describing the dependencies of each output file, as `gcc' does. It has only sense when the -o option is used. No processing is done except for the first pass.

The D flag option writes the rule to a dependency file. The name of this file is obtained by replacing the suffix of the output file by ``.d''.

The M flag option deletes the system files from the list of dependencies.

-p, --pass=

Specifies which of the passes described above are actually applied under runtime. The argument is a comma-separated list of pass numbers with one special case: You can write for all passes . When pass 9 is not part of the resulting output is written to . Default is the string ``''.

-W, --passoption=,

Set option for the pass .

-s, --safe

This disables some Perl hacks inside which speedup processing by reducing the forking overhead when running the various passes.

Without this option pre-compiles the passes 1,5,6,7,8 (which are written in Perl!) into a different namespace of the currently running Perl interpreter instead of running them externally via . The effect is that these programs are run from within the same Perl interpreter thus saving five and time-intensive 's. The actual gain is between 2 and 4 seconds of processing time. Although experience showed that it works great, the theoretical problem still is, that this approach is somewhat risky due to internal Perl variable conflicts.

Use this option to disable these speedups by forcing to use the safe approach.

-v, --verbose[=]

This sets verbose mode (from 1 to 9) where some processing information will be given on the console. Useful for debugging. This option also gets passed to some of the filtering programs. Default is no verbosity and just -v means -v1.

-q, --quiet

This sets quiet mode where the processing prop is no longer displayed. Use this option when running wml as a batch job. This option is automatically forced when inputfile is missing. Then automatically reads from stdin in quiet mode.

-V, --version[=]

Gives the version identification string and disclaimer (no or >= 1), the build information ( >= 2) and the Perl build information ( >= 3). Use this option to get a brief description of your installed system, especially when reporting bugs to the author.

-h, --help

Prints the usage summary page.

ENVIRONMENT

The following variables are always defined by wml under runtime and are usually interpolated via <> inside Pass 2 and via in Pass 3.

The current working directory from where wml was started. An absolute Unix filesystem path.

The name of the inputfile from the command line. Useful when running wml on a bulk of files and includefiles have to determine in which they are included.

The basename of the inputfile, i.e. the , but with the extension already stripped.

The last modification time of inputfile in format. Useful inside footers when customized date format is needed.

The last modification time of inputfile in format. Useful inside footers include files.

The last modification time of inputfile in format. Useful inside footers include files.

The Unix username of the user who own inputfile.

The realname of the user who own inputfile.

The current time of generation in format. Useful inside footers when customized date format is needed.

The current time of generation in format. Useful inside footers include files.

The current time of generation in format. Useful inside footers include files.

The Unix username of the user who runs the wml process.

The realname of the user who runs the wml process.

The name of the host on which the wml command runs.

The location prefix where was installed to at built time.

The directory where 's binaries were installed to at built time.

The directory where 's library files were installed to at built time.

The directory where 's data files were installed to at built time.

The directory where 's manual pages were installed to at built time.

The version identification string of Use this for instance in comments inside header includes to identify the generation tools version.

"WMLOPTS"

This variable can contain a string of options. Usually this is used by Bourne-Shell users like

 $ WMLOPTS="-DNAME1=VALUE2 -DNAME2=VALUE2"
 $ export WMLOPTS

and by C-Shell users like

 $ setenv WMLOPTS "-DNAME1=VALUE2 -DNAME2=VALUE2"

to make sure some variables are defined for all runs of wml.

"PAGER"

This variable contains the pager is to use. uses a pager when called with the --verbose= or -v option respectively and is 3 or higher and therefore showing the processed data after each pass. Default is 'more'.

"TMPDIR"

This variable contains the directory stores its temporary files in. Default is '/tmp'.

USER FILES

$HOME/.wmlrc and (../)*.wmlrc

These files can also contain option strings, one option per line. Usually the contents is one or more -D options, especially auto-adjusted ones:

 -DROOTREL~.
 -DROOTABS=http://thishost/thisarea/
 :
 -DNAME1=VALUE1
 -DNAME2=VALUE2
 :

STANDARD INCLUDE FILES

is shipped with a standard set of include files. You can directly include them via

 #use wml::category::name

and read their own documentation via

 $ man wml::category::name

See wml::all(3) for a description of all available include files.

SPECIAL FEATURES

The control frontend provides a few special features on its own:

Shebang Line Support

recognizes a shebang line (`` options'') in the .wml files and automatically adds options to its command line. This line is also used by WMk. Two special features in contrast to shebang lines for the Unix loader are available: 's shebang line can be continued via a backslash character and the constructs and %<> are interpolated (where is the path to the directory the source while resides and is the filename of the source file without any extension).

Example:

 #!wml -o (ALL-LANG_*)+LANG_EN:%BASE.en.html \
 -o (ALL-LANG_*)+LANG_DE:%BASE.de.html

Data Protection Container Tag

provides an own internal container tag named ... which can be used to protect any type of data from being processed by any pass. When no attribute is given defaults to . When you use then can be either , , or a comma separated list of passes, while can be between and .

Example:

 <script language="JavaScript">
 <protect pass=2>
 ...
 output = "<PRE><DIV ALIGN=\"CENTER\"><B>" + help_string + "</B></DIV></PRE>"
 ...
 </protect>
 </script>

Warning:

Since pass 1 includes extra stuff to help keeping information about line numbers relevant (a la cpp). So when writing

 <protect pass=2>
 #include 'foo'
 </protect>

these extra commands will not be interpreted during pass 2 and will remain on output. To suppress them, either compile with flag, or write

 <protect pass=2>
 #include 'foo' IPP_NOSYNCLINES
 </protect>

AUTHORS

 Ralf S. Engelschall
 [email protected]
 www.engelschall.com
 Denis Barbier
 [email protected]