16. A system comprising: a processor; a memory, the memory including a graphical user interface (GUI) enabling interactive visual restructuring of a displayed text file into a modified text file with a set of visual editing commands while concurrently displaying a tree structure including processing commands representative of the editing commands, the set of visual editing operations used to parse the text file and including an operation that creates a fragment from the text file.
16. A system comprising: a processor; a memory, the memory including a graphical user interface (GUI) enabling interactive visual restructuring of a displayed text file into a modified text file with a set of visual editing commands while concurrently displaying a tree structure including processing commands representative of the editing commands, the set of visual editing operations used to parse the text file and including an operation that creates a fragment from the text file. 20. The system of claim 16 wherein the set of visual editing operations includes an operation that associates multiple conditions to a block of text in the text file.