GF web-based syntax editor

John J. Camilleri
January 2013

A tool for building and manipulating abstract syntax trees in GF. This is meant as improved replacement of the old syntax editor.

Example usage

If you want to use the tool in your own application, everything you need in the source files editor.html and editor_online.js. Contact the GF developer mailing list if you have any problems.

Available startup options

Grammar Manager

Options	Description	Default
`initial.grammar`	Initial grammar URL, e.g. `"http://localhost:41296/grammars/Foods.pgf"`
`initial.startcat`	Initial startcat	(grammar default)
`initial.languages`	Initial linearisation languages, e.g. `["Eng","Swe","Mlt"]`	(all)

Editor

Options	Description	Default
`target`		"editor"
`initial.abstr`	Initial abstract tree (as string), e.g. `"Pred (That Fish) Expensive"`
`lin_action`	Function called when clicking on the language button beside each linearisation.
`lin_action_tooltip`	Tooltip for the button beside each linearisation.
`show_grammar_menu`	Show grammar menu?	True
`show_startcat_menu`	Show startcat menu?	True
`show_to_menu`	Show languages menu?	True
`show_random_button`	Show random button?	True
`show_import`	Show import button/panel?	True
`show_export`	Show export button?	True

Notes

Tested with latest Chrome and Firefox (only).

To do/feature requests

Compatibility with grammars with dependent category types
Clicking on tokens to select tree node
Clipboard of trees
Usage of printnames
Enter string/float/int literals
more prominence to Disamb-linearizations
show all resulting linearization variants
undo/redo (or back/forward) navigation
structure fridge magnets more (eg newline before the magnet whose first letter is different)

Known bugs

Change startcat doesn't work when given an initial startcat