Implement an ACI manager

[westram]

Goals:

• interface to create ACI expressions ("test ACI before use")
• allow to maintain ACIs (store/restore, export/import, …)

Current state:

• currently ACIs are difficult to edit (all in one line)
• to test an ACI it needs to be applied using the function where it shall be used.
  Depending on the function one may need to
  • open some generated textfile to see the result or
  • perform a time consuming batch (in case the ACI is applied to thousands of species)

Wanted:

• an EDIT button next to every ACI input field (opens ACI manager)
• basic functionality of ACI manager
  • multiline edit field for ACI (auto-format ACI into multiple lines here)
  • display error and result of ACI (on change)
  • list of existing ACIs (similar to existing hard-configured lists, e.g. in modify fields of listed)
    • input fields for name and comment (showing those of selected ACI or used when storing a new ACI); similar as done in config-manager interface
    • interface to manage ACI list (store current, delete selected, export/import)
• Notes:
  • use currently selected item (e.g. species) as source
  • use currently selected as source
  • some ACIs also "carry" the name of a default target field (e.g. in modify fields of listed)
  • update target awar when ACI applies w/o error
  • provide Revert button (=set target awar to startup state)
  • only one ACI manager allowed at a time?

Information provided by caller:

• itemtype (allow "none"?)
• input stream (might be an example)
• treename or treenode (or NULL)
• target awar (containing ACI)

[westram]

Milestone renamed