From SpareMiNT Wiki
Jump to: navigation, search



The two awk-scripts w2u.awk and u2w.awk provide the possibility to convert documents written for udo from and to the wiki-language.


Copy the files listed below (except w2u.ui) into a directory in $PATH or your local directory. The include-file w2u.ui is first searched in the local directory, then in $HOME/wiki. Copy the Makefile to your local directory.


  • u2w.awk Convert from udo to wiki
  • w2u.awk Convert from wiki to udo
  • u2w Shell-script to call u2w.awk
  • w2u Shell-script to call w2u.awk
  • getxml Retrieve xml-source from the wiki
  • makenodes Create nodes- and label-list
  • Makefile see below
  • w2u.ui Includefile needed for the udo-output by w2u.awk, contains some macros and

udo-specific settings.


retrieving wiki-source

Download the xml-file from the wiki using

getxml <Chapter>

To download the MiNT-usermanual for example enter:

getxml User_manual

This will produce the file


in your local directory.

Convert from wiki to udo

You get udo-source from wiki-xml by entering

awk -f w2u.awk <wiki-source>

or simply

w2u <wiki-source>

The output-filename will have the same base as the source with the extension .wu.

For example to convert the MiNT-usermanual to udo enter:

awk -f w2u.awk User_manual.xml

This will produce the file


Now you can convert this using udo to any format you need.

Convert from udo to wiki

You get wiki-source from udo-source by entering

awk -f u2w.awk <udo-source>

or simply

u2w <udo-source>

The output-filename will have the same base as the source with the extension .wik.

To convert the MiNT-usermanual to wiki enter:

awk -f u2w.awk User_manual.wu

This produces


which can be imported into the wiki by copy/paste.

If you want local links for nodes and labels in the wiki-output you need to create a file


which contains a list of all nodes and labels.

You can create this file by running

egrep "(^!(sub)*node|^!label)" <udo-source> ><udo-source>.n

or run

makenodes <udo-source>

Using the Makefile


make <name>.<ext>

to produce the output-format you want. Example:

make User_manual.html

will produce User_manual.html from User_manual.xml, User_manual.wu, or User_manual.u.



Both tools only cover a small subset of their input-language, so it's up to the user to not use anything that's not supported.

Coverage of udo-syntax


Lines that start with a '#' are comments. They are converted into

<!--# <text> -->

Coverage of wiki-syntax


The html-commentmarks

<!--, -->

are removed from the wiki-source. If you want to add a comment to the wiki-source type:

<!--# <your comment> -->

so your comment will be a comment in udo-source and will not get lost or cause errors. Only one-line-comments are possible.

What should be avoided in wiki

  • Using links as headlines is a ba idea, because udo places the link

itself in the TOC not the link-text.

  • Using brackets in a link-text is not reccommended, because they may confuse udo and the converter.
  • definition lists don't work because awk kills any leading ';' from the input-stream.

What should be avoided in udo

The converter emits a warning for any unknown udo-command it encounters.

External links

Both converters use the URL given in the base-statement, which is for wiki:


and for udo:

#! base URL

at the start of the document.

Known bugs

  • When repeatetly converting back and forth, the bold-environment may not always be correct (as well as other things).


See also

awk, udo, egrep, wget


The combination udo/awk is too limited (or my skills are) to make a complete converter, so this is probably the last version.

Personal tools