matcher.txt

matcher / filter

sidebar struct
	x
	y
	z
	---
	Name
	Total
	New
	Flagged
	---
	filter info

filter on sidebar name

Key: "filter-sidebar-start"
	Prompt:

passed a list of (filter_info*)

user types 'a'
	pass (list, string, flags) -> matcher
	matcher returns 'n' matches
	callback to display (list, string, flags)

allow display to do highlighting?
	would need to match algorithm
	put match info in filter_info
	=> highlight
		fuzzy = chars: 1,3-4,7-12
		simple = 3-6

matcher
	∀ list
	compare
	update infos
	count results
0 => none
n => some
-1 => error

matching algorithm
	compare string
	fuzzy
	index number
	regex

flags:
	case sensitive

callback
	change-became-longer
	change-became-shorter
	change-cleared
	exit


filter_info
	offset to string (filter field)
	visible?
	old visible (to help client)
	or char *rendered_line
		for whole line matching

options
	default hide non-matching
	highlight matching chars
	algo: text, regex, index, fuzzy
	flags: case sensitive

matcher
	extend to index, pager, etc
	works with a set of numbers, [0,n-1]
	callback to test whether item 'i' matches?
	callback to redraw panel

callback needs library fuzzy match
	xyz -> x.*y.*z regex

matcher options
	hide non-matches (squash spaces)
	grey out non-matches

call the matcher *live* limit?

must still be able to move the cursor/select at any time