summaryrefslogtreecommitdiffstats
path: root/lib/efl/ecore_getopt.rb
blob: 5be6492ce978a99d3e8d5964541bed9957605560 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
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
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
#! /usr/bin/env ruby
# -*- coding: UTF-8 -*-
#
require 'efl/ffi/ecore_getopt'
#
module Efl
    #
    module EcoreGetopt
        #
        class Value < FFI::Union
            layout  :strp,          :pointer,
                    :boolp,         :eina_bool_p,
                    :shortp,        :short_p,
                    :intp,          :int_p,
                    :longp,         :long_p,
                    :ushortp,       :ushort_p,
                    :uintp,         :uint_p,
                    :ulongp,        :ulong_p,
                    :doublep,       :double_p,
                    :listp,         :eina_list_p,
                    :ptrp,          :void_p
        end
        #
        class DescStoreDef < FFI::Union
            layout  :strv,          :pointer,
                    :boolv,         :uchar,
                    :shortv,        :short,
                    :intv,          :int,
                    :longv,         :long,
                    :ushortv,       :ushort,
                    :uintv,         :uint,
                    :ulongv,        :ulong,
                    :doublev,       :double
        end
        #
        class DescStore < FFI::Struct
            layout  :type,          :ecore_getopt_type,                 # enum
                    :arg_req,       :ecore_getopt_desc_arg_requirement, # enum
                    :def,           DescStoreDef
        end
        #
        callback :ecore_getopt_desc_cb, [:ecore_getopt_p, :ecore_getopt_desc_p, :string, :pointer, :ecore_getopt_value_p ], :eina_bool
        #
        class DescCallback < FFI::Struct
            layout  :func,          :ecore_getopt_desc_cb,
                    :data,          :pointer,
                    :arg_req,       :ecore_getopt_desc_arg_requirement, # enum
                    :def,           :pointer
        end
        #
        class ActionParam < FFI::Union
            layout  :store,         DescStore,
                    :store_const,   :pointer,
                    :choices,       :pointer,
                    :append_type,   :ecore_getopt_type,                 # enum
                    :callback,      DescCallback,
                    :dummy,         :pointer
        end
        #
        class Desc < FFI::Struct
            layout  :shortname,     :char,
                    :longname,      :pointer,
                    :help,          :pointer,
                    :metavar,       :pointer,
                    :action,        :ecore_getopt_action,               # enum
                    :action_param,  ActionParam
        end
        #
        class EcoreGetopt < FFI::Struct
            layout  :prog,          :pointer,
                    :usage,         :pointer,
                    :version,       :pointer,
                    :copyright,     :pointer,
                    :license,       :pointer,
                    :description,   :pointer,
                    :strict,        :char
#                    :descs,         :pointer,   # NULL terminated  EcoreGetopt_Desc[]

            def desc_ptr idx
                Efl::EcoreGetopt::Desc.new to_ptr+Efl::EcoreGetopt::EcoreGetopt.size+(idx*Efl::EcoreGetopt::Desc.size)
            end
        end
        #
        class REcoreGetopt
            def initialize desc
                @ecore_getopt = nil
                @desc = desc
                @options = [
                    [ 0, FFI::Pointer::NULL, FFI::Pointer::NULL, FFI::Pointer::NULL, 0, {:dummy=>FFI::Pointer::NULL} ]
                ]
                @values = [
                    [ :ptrp, FFI::Pointer::NULL ]
                ]
                @refs = [] # to prevent FFI::MemoryPointer.from_string from beeing GC'ed
            end
            def p_from_string r
                return r if r==FFI::Pointer::NULL
                p = FFI::MemoryPointer.from_string r
                @refs << p
                p
            end
            private :p_from_string
            def << o
                @options.insert -2, o
            end
            def value type, ptr
                @values.insert -2, [ type, ptr ]
            end
            def to_ptr
                @ecore_getopt.to_ptr
            end
            def create
                @ecore_getopt = Efl::EcoreGetopt::EcoreGetopt.new( FFI::MemoryPointer.new( :uchar, Efl::EcoreGetopt::EcoreGetopt.size+Efl::EcoreGetopt::Desc.size*@options.length) )
                [:prog,:usage,:version,:copyright,:license,:description].each do |sym|
                    @ecore_getopt[sym] = ( @desc.has_key?(sym) ? FFI::MemoryPointer.from_string(@desc[sym]) : FFI::Pointer::NULL )
                end
                @ecore_getopt[:strict] = @desc[:strict] if @desc.has_key? :strict
                @options.each_with_index do |o,i|
                    d = @ecore_getopt.desc_ptr i
                    d[:shortname] = o[0].to_s.bytes.first
                    d[:longname] = p_from_string o[1]
                    d[:help] = p_from_string o[2]
                    d[:metavar] = o[3]
                    d[:action] = o[4]
                    k, v = o[5]
                    case k
                    when :dummy
                        d[:action_param][:dummy] = v
                    when :callback
                        cb = d[:action_param][:callback]
                        cb[:func] = v[0]
                        cb[:data] = v[1]
                        cb[:arg_req] = v[2]
                        cb[:def] = v[3]
                    when :store
                        st = d[:action_param][:store]
                        st[:type] = v[0]
                        st[:arg_req] = v[1]
                        if not v[2].nil?
                            if v[2][0]==:strv
                                st[:def][:strv] = p_from_string v[2][1]
                            else
                                st[:def][v[2][0]] = v[2][1]
                            end
                        end
                    when :store_const
                        d[:action_param][:store_const] = v
                    when :choices
                        d[:action_param][:choices] = v
                    when :append
                        d[:action_param][:append_type] = v
                    else
                        d[:action_param][:dummy] = FFI::Pointer::NULL
                    end
                end
                @values_p = FFI::MemoryPointer.new Efl::EcoreGetopt::Value, @values.length, false
                @values.each_with_index do |v,i|
                    Efl::EcoreGetopt::Value.new(@values_p+(i*Efl::EcoreGetopt::Value.size))[v[0]] = v[1]
                end
            end
            def parse argv
                ptr = FFI::MemoryPointer.new(:pointer, argv.length+1)
                argv.each_with_index do |s, i|
                    ptr[i].put_pointer 0, p_from_string(s)
                end
                ptr[argv.length].put_pointer 0, FFI::Pointer::NULL
                Efl::EcoreGetopt.ecore_getopt_parse @ecore_getopt, @values_p, argv.length, ptr
            end
            def store_full short, long, help, meta, type, arg_req, def_val
                self << [ short, long, help, meta, :ecore_getopt_action_store, [:store, [type,arg_req, def_val] ] ]
            end
            def store short, long, help, type
                store_full short, long, help, FFI::Pointer::NULL, type, :ecore_getopt_desc_arg_requirement_yes, nil
            end
            def store_type type, short, long, help
                store short, long, help, ('ecore_getopt_type_'+type.to_s).to_sym
            end
            def store_metavar short, long, help, meta, type
                store_full short, long, help, meta, type, :ecore_getopt_desc_arg_requirement_yes, nil
            end
            def store_meta_type type, short, long, help, meta
                store_metavar short, long, help, meta, ('ecore_getopt_type_'+type.to_s).to_sym
            end
            def store_def short, long, help, type, def_val
                store_full short, long, help, FFI::Pointer::NULL, type, :ecore_getopt_desc_arg_requirement_optional, def_val
            end
            def store_def_type type, short, long, help, def_val
                store_def short, long, help, ('ecore_getopt_type_'+type.to_s).to_sym, [ (type.to_s+'v').to_sym, def_val ]
            end
            def store_full_type type, short, long, help, meta, arg_req, def_val
                store_full short, long, help, meta, ('ecore_getopt_type_'+type.to_s).to_sym, arg_req, [ (type.to_s+'v').to_sym, def_val ]
            end
            def store_const short, long, help, value
                self << [ short, long, help, FFI::Pointer::NULL, :ecore_getopt_action_store_const, [:store_const, value] ]
            end
            def store_true short, long, help
                self << [ short, long, help, FFI::Pointer::NULL, :ecore_getopt_action_store_true, [:dummy,FFI::MemoryPointer::NULL] ]
            end
            def store_false short, long, help
                self << [ short, long, help, FFI::Pointer::NULL, :ecore_getopt_action_store_false, [:dummy,FFI::MemoryPointer::NULL] ]
            end
            def choice short, long, help, choices
                ptr = FFI::MemoryPointer.new(:pointer, choices.length+1)
                choices.each_with_index do |s, i|
                    ptr[i].put_pointer 0, p_from_string(s)
                end
                ptr[choices.length].put_pointer 0, FFI::Pointer::NULL
                self << [ short, long, help, FFI::Pointer::NULL, :ecore_getopt_action_choice, [:choices,ptr] ]
            end
            def choice_metavar short, long, help, meta, choices
                ptr = FFI::MemoryPointer.new(:pointer, choices.length+1)
                choices.each_with_index do |s, i|
                    ptr[i].put_pointer 0, p_from_string(s)
                end
                ptr[choices.length].put_pointer 0, FFI::Pointer::NULL
                self << [ short, long, help, meta, :ecore_getopt_action_choice, [:choices,ptr] ]
            end
            def append short, long, help, sub_type
                self << [ short, long, help, FFI::Pointer::NULL, :ecore_getopt_action_append, [:append,sub_type] ]
            end
            def append_metavar short, long, help, meta, sub_type
                self << [ short, long, help, meta, :ecore_getopt_action_append, [:append,sub_type] ]
            end
            def count short, long, help
                self << [ short, long, help, FFI::Pointer::NULL, :ecore_getopt_action_count, [:dummy,FFI::Pointer::NULL] ]
            end
            def callback_full short, long, help, meta, cb, data, arg_req, def_val
                self << [ short, long, help, meta, :ecore_getopt_action_callback, [:callback, [cb, data, arg_req,def_val] ] ]
            end
            def callback_noargs short, long, help, cb, data
                callback_full short, long, help, FFI::Pointer::NULL, cb, data, :ecore_getopt_desc_arg_requirement_no, FFI::Pointer::NULL
            end
            def callback_args short, long, help, meta, cb, data
                callback_full short, long, help, meta, cb, data, :ecore_getopt_desc_arg_requirement_yes, FFI::Pointer::NULL
            end
            def help short, long
                self << [ short, long, 'show this message.', FFI::Pointer::NULL, :ecore_getopt_action_help, [:dummy,FFI::Pointer::NULL] ]
            end
            def version short, long
                self << [ short, long, 'show program version.', FFI::Pointer::NULL, :ecore_getopt_action_version, [:dummy,FFI::Pointer::NULL] ]
            end
            def copyright short, long
                self << [ short, long, 'show copyright.', FFI::Pointer::NULL, :ecore_getopt_action_copyright, [:dummy,FFI::Pointer::NULL] ]
            end
            def license short, long
                self << [ short, long, 'show license.', FFI::Pointer::NULL, :ecore_getopt_action_license, [:dummy,FFI::Pointer::NULL] ]
            end
#            def sentinel
#                self << [ 0, FFI::Pointer::NULL, FFI::Pointer::NULL, FFI::Pointer::NULL, 0, {:dummy=>FFI::Pointer::NULL} ]
#            end
            #
            def debug
                r = ''
                r << "#{self.class} : #{@ecore_getopt.to_ptr}\n"
                [:prog,:usage,:version,:copyright,:license,:description].each do |sym|
                    r<< "  #{sym.to_s} : #{@ecore_getopt[sym]==FFI::Pointer::NULL ? 'NULL' : @ecore_getopt[sym].read_string}\n"
                end
                r << "  strict : #{@ecore_getopt[:strict]}\n"
                i=0
                while true
                    d = @ecore_getopt.desc_ptr i
                    break if d[:shortname]==0 and d[:longname] == FFI::Pointer::NULL
                    r << "    desc #{d.to_ptr}\n"
                    r << "     short: #{d[:shortname].chr}\n" unless d[:shortname]==0
                    r << "     long:  #{d[:longname].read_string}\n" unless d[:longname]==FFI::Pointer::NULL
                    r << "     help:  #{d[:help].read_string}\n" unless d[:help]==FFI::Pointer::NULL
                    i+=1
                end
                r
            end
        end
    end
    #
end
#
# EOF