Function todo_lib::todo::edit

pub fn edit(tasks: &mut TaskVec, ids: Option<&IDVec>, c: &Conf) -> ChangedVec

Modifies existing todos.

A powerful function to transform todo list. List of operations:

• for priority: change, remove, increase or decrease by one;
• for subject: set a new subject;
• for due date: remove or set a new one;
• for recurrence: remove or set a new one (setting recurrence clears done flag;
• for project: add a new, remove old, replace old with new one;
• for context: add a new, remove old, replace old with new one;

• tasks - the task list
• ids - the list of todo IDs which should be undone. If it is None the entire task list is marked undone.
• c - what to modify and how

if c contains a new subject then only the first todo from ids is modified. For all other cases the function processes all todos from ids.

Returns a list of boolean values: a value per each ID in ids or tasks. The length of the result list equals either length of ids(if ids is Some) or length of tasks(if ids is None). Value true in this array means that corresponding item from ids or tasks was modified.