Method: Linkify#compile

Defined in:
lib/linkify-it-rb/index.rb

#compile ⇒ Object

Schemas compiler. Build regexps.



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
 
# File 'lib/linkify-it-rb/index.rb', line 117

def compile
  @re = build_re(@__opts__)

  # Define dynamic patterns
  tlds = @__tlds__.dup

  onCompile

  tlds.push(TLDS_2CH_SRC_RE) if (!@__tlds_replaced__)
  tlds.push(@re[:src_xn])

  @re[:src_tlds]         = tlds.join('|')
  @re[:email_fuzzy]      = Regexp.new(@re[:tpl_email_fuzzy].gsub('%TLDS%', @re[:src_tlds]), true)
  @re[:link_fuzzy]       = Regexp.new(@re[:tpl_link_fuzzy].gsub('%TLDS%', @re[:src_tlds]), true)
  @re[:link_no_ip_fuzzy] = Regexp.new(@re[:tpl_link_no_ip_fuzzy].gsub('%TLDS%', @re[:src_tlds]), true)
  @re[:host_fuzzy_test]  = Regexp.new(@re[:tpl_host_fuzzy_test].gsub('%TLDS%', @re[:src_tlds]), true)

  #
  # Compile each schema
  #

  aliases = []

  @__compiled__ = {} # Reset compiled data

  schemaError = lambda do |name, val|
    raise Error, ('(LinkifyIt) Invalid schema "' + name + '": ' + val)
  end

  @__schemas__.each do |name, val|

    # skip disabled methods
    next if (val == nil)

    compiled = { validate: nil, link: nil }

    @__compiled__[name] = compiled

    if (val.is_a? Hash)
      if (val[:validate].is_a? Regexp)
        compiled[:validate] = createValidator(val[:validate])
      elsif (val[:validate].is_a? Proc)
        compiled[:validate] = val[:validate]
      else
        schemaError(name, val)
      end

      if (val[:normalize].is_a? Proc)
        compiled[:normalize] = val[:normalize]
      elsif (!val[:normalize])
        compiled[:normalize] = createNormalizer()
      else
        schemaError(name, val)
      end
      next
    end

    if (val.is_a? String)
      aliases.push(name)
      next
    end

    schemaError(name, val)
  end

  #
  # Compile postponed aliases
  #

  aliases.each do |an_alias|
    if (!@__compiled__[@__schemas__[an_alias]])
      # Silently fail on missed schemas to avoid errons on disable.
      # schemaError(an_alias, self.__schemas__[an_alias]);
    else
      @__compiled__[an_alias][:validate]  = @__compiled__[@__schemas__[an_alias]][:validate]
      @__compiled__[an_alias][:normalize] = @__compiled__[@__schemas__[an_alias]][:normalize]
    end
  end

  #
  # Fake record for guessed links
  #
  @__compiled__[''] = { validate: nil, normalize: createNormalizer }

  #
  # Build schema condition, and filter disabled & fake schemas
  #
  slist = @__compiled__.select {|name, val| name.length > 0 && !val.nil? }.keys.map {|str| escapeRE(str)}.join('|')

  # (?!_) cause 1.5x slowdown
  @re[:schema_test]     = Regexp.new('(^|(?!_)(?:[><\uff5c]|' + @re[:src_XPCc] + '))(' + slist + ')', 'i')
  @re[:schema_search]   = Regexp.new('(^|(?!_)(?:[><\uff5c]|' + @re[:src_XPCc] + '))(' + slist + ')', 'i')
  @re[:schema_at_start] = Regexp.new('^' + @re[:schema_search].source, 'i')

  @re[:pretest] = Regexp.new(
    '(' + @re[:schema_test].source + ')|(' + @re[:host_fuzzy_test].source + ')|@',
    'i'
  )

  #
  # Cleanup
  #

  resetScanCache
end