libxo
=====
libxo - A Library for Generating Text, XML, JSON, and HTML Output
The libxo library allows an application to generate text, XML, JSON,
and HTML output using a common set of function calls. The application
decides at run time which output style should be produced. The
application calls a function "xo_emit" to product output that is
described in a format string. A "field descriptor" tells libxo what
the field is and what it means.
```
xo_emit(" {:lines/%7ju/%ju} {:words/%7ju/%ju} "
"{:characters/%7ju/%ju}{d:filename/%s}\n",
linect, wordct, charct, file);
```
Output can then be generated in various style, using the "--libxo"
option:
```
% wc /etc/motd
25 165 1140 /etc/motd
% wc --libxo xml,pretty,warn /etc/motd