Class: Pine

Inherits:
Object
  • Object
show all
Defined in:
lib/sansom/pine.rb,
lib/sansom/pine/node.rb,
ext/sansom/pine/matcher.cpp

Defined Under Namespace

Classes: Matcher, Node

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Pine

Returns a new instance of Pine.



15
16
17
18
 
# File 'lib/sansom/pine.rb', line 15

def initialize
  @root = Pine::Node.new
  @cache = {}
end

Instance Method Details

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


20
21
22
 
# File 'lib/sansom/pine.rb', line 20

def empty?
  @root.leaf?
end

#map_path(path, handler, key) ⇒ Object

map_path “/food”, Subsansom.new, :map map_path “/”, ObjectThatRespondsToCall.new, :get it’s also chainable



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
 
# File 'lib/sansom/pine.rb', line 34

def map_path path, handler, key
  @cache.clear

  node = (path == "/") ? @root : path_comps(path).inject(@root) { |n, comp| n << comp }

  if key == :mount && !handler.is_a?(Proc)
    if handler.singleton_class.include? Sansomable
      node.subsansoms << handler
    else
      node.rack_app = handler
    end
  else
    node.blocks[key] = handler
  end
  
  self
end

#match(path, verb) ⇒ Object

match “/”, :get



53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
 
# File 'lib/sansom/pine.rb', line 53

def match path, verb
  return nil if empty?
  
  k = verb.to_s + path.to_s
  return @cache[k] if @cache.has_key? k
  
  matched_length = 0
  matched_params = { :splat => [] }
  matched_wildcard = false

  # find a matching node
  walk = path_comps(path).inject @root do |n, comp|
    c = n[comp]
    break n if c.nil?
    matched_length += comp.length+1
    if c.dynamic?
      matched_params.merge! c.mappings(comp)
      matched_params[:splat].push *c.splats(comp)
      matched_wildcard = true
    end
    c
  end
  
  return nil if walk.nil?

  remaining_path = path[matched_length..-1]
  match = walk.blocks[verb.downcase.to_sym]
  match ||= walk.subsansoms.detect { |i| i._pine.match remaining_path, verb }
  match ||= walk.rack_app

  return nil if match.nil?
  
  r = [match, remaining_path, path[0..matched_length-1], matched_params]
  @cache[k] = r unless matched_wildcard # Only cache static lookups (avoid huge memory usage)
  r
end

#path_comps(path) ⇒ Object

returns all non-root path components path_comps(“/my/path/”)

> [“my”, “path”]



27
28
29
 
# File 'lib/sansom/pine.rb', line 27

def path_comps path
  path.nil? || path.empty? ? [] : path[1..(path[-1] == "/" ? -2 : -1)].split('/')
end