Make it possible to read CLD data from a file

third_party/cld_2/cld_2.gyp

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+# Note to maintainers: In the January 2014 release (*_0122*), there are some
+# options for building:
+# Pick one quadgram file (cld2_generated_quadchrome*.cc):
+#   0122_16 = 160K entries, smallest size, lowest accuracy
+#   0122_19 = 192K entries, medium size, medium accuracy
+#   0122_2  = 256K entries, largest size, highest accuracy
+#
+# Pick one CJK bigram file (cld_generated_cjk_delta_bi*.cc):
+#    _4     = 1K entries, 4K size, lowest accuracy
+#    _32    = 8K entries, 32K size, highest accuracy
+
 {
   'targets': [
     {
+      'target_name': 'cld2_dynamic_data_tool',
+      'type': 'executable',
+      'include_dirs': [
+        'src/internal',
+        'src/public',
+      ],
+      'sources': [
+        'src/internal/cld2_dynamic_data.h',
+        'src/internal/cld2_dynamic_data.cc',
+        'src/internal/cld2_dynamic_data_extractor.h',
+        'src/internal/cld2_dynamic_data_extractor.cc',
+        'src/internal/cld2_dynamic_data_loader.h',
+        'src/internal/cld2_dynamic_data_loader.cc',
+        'src/internal/cld2_dynamic_data_tool.cc',
+        'src/internal/cld2_generated_cjk_compatible.cc',
+        'src/internal/cld2_generated_deltaoctachrome0122.cc',
+        'src/internal/cld2_generated_distinctoctachrome0122.cc',
+        'src/internal/cld2_generated_quadchrome0122_2.cc',
+        'src/internal/cld2tablesummary.h',
+        'src/internal/cld_generated_cjk_delta_bi_4.cc',
+        'src/internal/cld_generated_cjk_uni_prop_80.cc',
+        'src/internal/cld_generated_score_quad_octa_0122_2.cc',
+        'src/internal/cldutil.cc',
+        'src/internal/cldutil.h',
+        'src/internal/cldutil_shared.cc',
+        'src/internal/cldutil_shared.h',
+        'src/internal/compact_lang_det.cc',
+        'src/internal/compact_lang_det_hint_code.cc',
+        'src/internal/compact_lang_det_hint_code.h',
+        'src/internal/compact_lang_det_impl.cc',
+        'src/internal/compact_lang_det_impl.h',
+        'src/internal/debug.h',
+        'src/internal/debug_empty.cc',
+        'src/internal/fixunicodevalue.cc',
+        'src/internal/fixunicodevalue.h',
+        'src/internal/generated_distinct_bi_0.cc',
+        'src/internal/generated_entities.cc',
+        'src/internal/generated_language.cc',
+        'src/internal/generated_language.h',
+        'src/internal/generated_ulscript.cc',
+        'src/internal/generated_ulscript.h',
+        'src/internal/getonescriptspan.cc',
+        'src/internal/getonescriptspan.h',
+        'src/internal/integral_types.h',
+        'src/internal/lang_script.cc',
+        'src/internal/lang_script.h',
+        'src/internal/langspan.h',
+        'src/internal/offsetmap.cc',
+        'src/internal/offsetmap.h',
+        'src/internal/port.h',
+        'src/internal/scoreonescriptspan.cc',
+        'src/internal/scoreonescriptspan.h',
+        'src/internal/stringpiece.h',
+        'src/internal/tote.cc',
+        'src/internal/tote.h',
+        'src/internal/utf8prop_lettermarkscriptnum.h',
+        'src/internal/utf8repl_lettermarklower.h',
+        'src/internal/utf8scannot_lettermarkspecial.h',
+        'src/internal/utf8statetable.cc',
+        'src/internal/utf8statetable.h',
+        'src/public/compact_lang_det.h',
+        'src/public/encodings.h',
+      ],
+    },
+    {
       'target_name': 'cld_2',
       'type': 'static_library',
       'include_dirs': [
         'src/internal',
         'src/public',
       ],
       'sources': [
-        'src/internal/cld2_generated_cjk_compatible.cc',
-        'src/internal/cld2_generated_deltaoctachrome0614.cc',
-        'src/internal/cld2_generated_distinctoctachrome0604.cc',
-        'src/internal/cld2_generated_quadchrome0715.cc',
         'src/internal/cld2tablesummary.h',
-        'src/internal/cld_generated_cjk_delta_bi_4.cc',
-        'src/internal/cld_generated_cjk_uni_prop_80.cc',
-        'src/internal/cld_generated_score_quad_octa_1024_256.cc',
         'src/internal/cldutil.cc',
         'src/internal/cldutil.h',
         'src/internal/cldutil_shared.cc',
         'src/internal/cldutil_shared.h',
         'src/internal/compact_lang_det.cc',
         'src/internal/compact_lang_det_hint_code.cc',
         'src/internal/compact_lang_det_hint_code.h',
         'src/internal/compact_lang_det_impl.cc',
         'src/internal/compact_lang_det_impl.h',
         'src/internal/debug.h',
@@ skipping 25 matching lines @@
         'src/internal/utf8scannot_lettermarkspecial.h',
         'src/internal/utf8statetable.cc',
         'src/internal/utf8statetable.h',
         'src/public/compact_lang_det.h',
         'src/public/encodings.h',
       ],
       'conditions': [
         ['OS=="win"', {
           'msvs_disabled_warnings': [4267],
         }],
+        # Dynamic or vanilla mode
+        ['cld_dynamic==1',
+          {
+            # Enable dynamic mode, which allows CLD to read its data from a file
+            # instead of requiring the data to be linked into the library.
+            # You must generate the data file and check it in using the
+            # cld2_dynamic_data_tool.
+            # build/common.gypi takes care of setting -D CLD2_MODE_DYNAMIC
+            'sources+': [
+              'src/internal/cld2_dynamic_data.h',
+              'src/internal/cld2_dynamic_data.cc',
+              'src/internal/cld2_dynamic_data_loader.h',
+              'src/internal/cld2_dynamic_data_loader.cc',
+            ],
+          },
+          {
+            # Else it's regular mode, so link in all the data blobs directly.
+            'sources+': [
+              'src/internal/cld2_generated_cjk_compatible.cc',
+              'src/internal/cld2_generated_deltaoctachrome0122.cc',
+              'src/internal/cld2_generated_distinctoctachrome0122.cc',
+              'src/internal/cld2_generated_quadchrome0122_2.cc',
+              'src/internal/cld_generated_cjk_delta_bi_4.cc',
+              'src/internal/cld_generated_cjk_uni_prop_80.cc',
+              'src/internal/cld_generated_score_quad_octa_1022_2.cc',
+              'src/internal/generated_distinct_bi_0.cc',
+            ],
+          }
+        ],
       ],
     },
   ],
 }