Editing Web (programming system) (section)

===Features===
* Can enter manual TeX code as well as automatic.
* Makes formatting of C code suitable for [[pretty printing]].
* Can define sections, and can contain documentation and codes, which can then be included into other sections.
* Writes the header code and main C code in one file, and can reuse the same sections, and then it can be tangled into multiple files for compiling.
* Uses <code>#line</code> directive so that any warnings or errors refer to the .w source.
* Include files.
* Change files, which can be automatically merged into the code when compiling/printing.
* Produces index of identifiers and section names in the printout.