1. \input ProTex.sty

The escape-character stands for `, @, |, or ?. If omitted, it stands for `\'.

The commands need the packages ProTex.sty and AlProTex.sty.

2. \<title\><<<
code fragment

This structure provides names to code fragments (the fragments should not be too large in size).

3. `<title`>

This command acts as a place holder for the code segment associated to the title (` stands for the escape character).

4. \OutputCode\<...\>

This command creates a file for the code whose root node is specified.

Example: source & outcome