Add m-esr52 at 52.6.0

2 files changed, 489 insertions, 0 deletions

diff --git a/browser/components/translation/cld2/public/compact_lang_det.h b/browser/components/translation/cld2/public/compact_lang_det.h
new file mode 100644
index 000000000..da59abd63
--- /dev/null
+++ b/browser/components/translation/cld2/public/compact_lang_det.h
@@ -0,0 +1,320 @@
+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//
+// Author: dsites@google.com (Dick Sites)
+//
+
+// NOTE:
+// Baybayin (ancient script of the Philippines) is detected as TAGALOG.
+// Chu Nom (Vietnamese ancient Han characters) is detected as VIETNAMESE.
+// HAITIAN_CREOLE is detected as such.
+// NORWEGIAN and NORWEGIAN_N are detected separately (but not robustly)
+// PORTUGUESE, PORTUGUESE_P, and PORTUGUESE_B are all detected as PORTUGUESE.
+// ROMANIAN-Latin is detected as ROMANIAN; ROMANIAN-Cyrillic as ROMANIAN.
+// BOSNIAN is not detected as such, but likely scores as Croatian or Serbian.
+// MONTENEGRIN is not detected as such, but likely scores as Serbian.
+// CROATIAN is detected in the Latin script
+// SERBIAN is detected in the Cyrililc and Latin scripts
+// Zhuang is detected in the Latin script only.
+//
+// The languages X_PIG_LATIN and X_KLINGON are detected in the
+//  extended calls ExtDetectLanguageSummary().
+//
+// UNKNOWN_LANGUAGE is returned if no language's internal reliablity measure
+//  is high enough. This happens with non-text input such as the bytes of a
+//  JPEG, and also with text in languages outside training set.
+//
+// The following languages are to be detected in multiple scripts:
+//  AZERBAIJANI (Latin, Cyrillic*, Arabic*)
+//  BURMESE (Latin, Myanmar)
+//  HAUSA (Latin, Arabic)
+//  KASHMIRI (Arabic, Devanagari)
+//  KAZAKH (Latin, Cyrillic, Arabic)
+//  KURDISH (Latin*, Arabic)
+//  KYRGYZ (Cyrillic, Arabic)
+//  LIMBU (Devanagari, Limbu)
+//  MONGOLIAN (Cyrillic, Mongolian)
+//  SANSKRIT (Latin, Devanagari)
+//  SINDHI (Arabic, Devanagari)
+//  TAGALOG (Latin, Tagalog)
+//  TAJIK (Cyrillic, Arabic*)
+//  TATAR (Latin, Cyrillic, Arabic)
+//  TURKMEN (Latin, Cyrillic, Arabic)
+//  UIGHUR (Latin, Cyrillic, Arabic)
+//  UZBEK (Latin, Cyrillic, Arabic)
+//
+// * Due to a shortage of training text, AZERBAIJANI is not currently detected
+//   in Arabic or Cyrillic scripts, nor KURDISH in Latin script, nor TAJIK in
+//   Arabic script.
+//
+
+#ifndef I18N_ENCODINGS_CLD2_PUBLIC_COMPACT_LANG_DET_H_
+#define I18N_ENCODINGS_CLD2_PUBLIC_COMPACT_LANG_DET_H_
+
+#include <vector>
+#include "../internal/lang_script.h"  // For Language
+
+namespace CLD2 {
+
+  // Scan interchange-valid UTF-8 bytes and detect most likely language,
+  // or set of languages.
+  //
+  // Design goals:
+  //   Skip over big stretches of HTML tags
+  //   Able to return ranges of different languages
+  //   Relatively small tables and relatively fast processing
+  //   Thread safe
+  //
+  // For HTML documents, tags are skipped, along with <script> ... </script>
+  // and <style> ... </style> sequences, and entities are expanded.
+  //
+  // We distinguish between bytes of the raw input buffer and bytes of non-tag
+  // text letters. Since tags can be over 50% of the bytes of an HTML Page,
+  // and are nearly all seven-bit ASCII English, we prefer to distinguish
+  // language mixture fractions based on just the non-tag text.
+  //
+  // Inputs: text and text_length
+  //  Code skips HTML tags and expands HTML entities, unless
+  //  is_plain_text is true
+  // Outputs:
+  //  language3 is an array of the top 3 languages or UNKNOWN_LANGUAGE
+  //  percent3 is an array of the text percentages 0..100 of the top 3 languages
+  //  text_bytes is the amount of non-tag/letters-only text found
+  //  is_reliable set true if the returned Language is some amount more
+  //   probable then the second-best Language. Calculation is a complex function
+  //   of the length of the text and the different-script runs of text.
+  // Return value: the most likely Language for the majority of the input text
+  //  Length 0 input returns UNKNOWN_LANGUAGE. Very short indeterminate text
+  //  defaults to ENGLISH.
+  //
+  // The first two versions return ENGLISH instead of UNKNOWN_LANGUAGE, for
+  // backwards compatibility with a different detector.
+  //
+  // The third version may return UNKNOWN_LANGUAGE, and also returns extended
+  // language codes from lang_script.h
+  //
+
+
+  // Instead of individual arguments, pass in hints as an initialized struct
+  // Init to {NULL, NULL, UNKNOWN_ENCODING, UNKNOWN_LANGUAGE} if not known.
+  //
+  // Pass in hints whenever possible; doing so improves detection accuracy. The
+  // set of passed-in hints are all information that is external to the text
+  // itself.
+  //
+  // The content_language_hint is intended to come from an HTTP header
+  // Content-Language: field, the tld_hint from the hostname of a URL, the
+  // encoding-hint from an encoding detector applied to the input
+  // document, and the language hint from any other context you might have.
+  // The lang= tags inside an HTML document will be picked up as hints
+  // by code within the compact language detector.
+
+  typedef struct {
+    const char* content_language_hint;      // "mi,en" boosts Maori and English
+    const char* tld_hint;                   // "id" boosts Indonesian
+    int encoding_hint;                      // SJS boosts Japanese
+    Language language_hint;                 // ITALIAN boosts it
+  } CLDHints;
+
+  static const int kMaxResultChunkBytes = 65535;
+
+  // For returning a vector of per-language pieces of the input buffer
+  // Unreliable and too-short are mapped to UNKNOWN_LANGUAGE
+  typedef struct {
+    int offset;                 // Starting byte offset in original buffer
+    uint16 bytes;               // Number of bytes in chunk
+    uint16 lang1;               // Top lang, as full Language. Apply
+                                // static_cast<Language>() to this short value.
+  } ResultChunk;
+  typedef std::vector<ResultChunk> ResultChunkVector;
+
+
+  // Scan interchange-valid UTF-8 bytes and detect most likely language
+  Language DetectLanguage(
+                          const char* buffer,
+                          int buffer_length,
+                          bool is_plain_text,
+                          bool* is_reliable);
+
+  // Scan interchange-valid UTF-8 bytes and detect list of top 3 languages.
+  // language3[0] is usually also the return value
+  Language DetectLanguageSummary(
+                          const char* buffer,
+                          int buffer_length,
+                          bool is_plain_text,
+                          Language* language3,
+                          int* percent3,
+                          int* text_bytes,
+                          bool* is_reliable);
+
+  // Same as above, with hints supplied
+  // Scan interchange-valid UTF-8 bytes and detect list of top 3 languages.
+  // language3[0] is usually also the return value
+  Language DetectLanguageSummary(
+                          const char* buffer,
+                          int buffer_length,
+                          bool is_plain_text,
+                          const char* tld_hint,       // "id" boosts Indonesian
+                          int encoding_hint,          // SJS boosts Japanese
+                          Language language_hint,     // ITALIAN boosts it
+                          Language* language3,
+                          int* percent3,
+                          int* text_bytes,
+                          bool* is_reliable);
+
+  // Scan interchange-valid UTF-8 bytes and detect list of top 3 extended
+  // languages.
+  //
+  // Extended languages are additional interface languages and Unicode
+  // single-language scripts, from lang_script.h
+  //
+  // language3[0] is usually also the return value
+  Language ExtDetectLanguageSummary(
+                          const char* buffer,
+                          int buffer_length,
+                          bool is_plain_text,
+                          Language* language3,
+                          int* percent3,
+                          int* text_bytes,
+                          bool* is_reliable);
+
+  // Same as above, with hints supplied
+  // Scan interchange-valid UTF-8 bytes and detect list of top 3 extended
+  // languages.
+  //
+  // Extended languages are additional Google interface languages and Unicode
+  // single-language scripts, from lang_script.h
+  //
+  // language3[0] is usually also the return value
+  Language ExtDetectLanguageSummary(
+                          const char* buffer,
+                          int buffer_length,
+                          bool is_plain_text,
+                          const char* tld_hint,       // "id" boosts Indonesian
+                          int encoding_hint,          // SJS boosts Japanese
+                          Language language_hint,     // ITALIAN boosts it
+                          Language* language3,
+                          int* percent3,
+                          int* text_bytes,
+                          bool* is_reliable);
+
+  // Same as above, and also returns 3 internal language scores as a ratio to
+  // normal score for real text in that language. Scores close to 1.0 indicate
+  // normal text, while scores far away from 1.0 indicate badly-skewed text or
+  // gibberish
+  //
+  Language ExtDetectLanguageSummary(
+                          const char* buffer,
+                          int buffer_length,
+                          bool is_plain_text,
+                          const char* tld_hint,       // "id" boosts Indonesian
+                          int encoding_hint,          // SJS boosts Japanese
+                          Language language_hint,     // ITALIAN boosts it
+                          Language* language3,
+                          int* percent3,
+                          double* normalized_score3,
+                          int* text_bytes,
+                          bool* is_reliable);
+
+
+  // Use this one.
+  // Hints are collected into a struct.
+  // Flags are passed in (normally zero).
+  //
+  // Also returns 3 internal language scores as a ratio to
+  // normal score for real text in that language. Scores close to 1.0 indicate
+  // normal text, while scores far away from 1.0 indicate badly-skewed text or
+  // gibberish
+  //
+  // Returns a vector of chunks in different languages, so that caller may
+  // spell-check, translate, or otherwaise process different parts of the input
+  // buffer in language-dependant ways.
+  //
+  Language ExtDetectLanguageSummary(
+                          const char* buffer,
+                          int buffer_length,
+                          bool is_plain_text,
+                          const CLDHints* cld_hints,
+                          int flags,
+                          Language* language3,
+                          int* percent3,
+                          double* normalized_score3,
+                          ResultChunkVector* resultchunkvector,
+                          int* text_bytes,
+                          bool* is_reliable);
+
+  // Return version text string
+  // String is "code_version - data_build_date"
+  const char* DetectLanguageVersion();
+
+
+  // Public use flags, debug output controls
+  static const int kCLDFlagScoreAsQuads = 0x0100;  // Force Greek, etc. => quads
+  static const int kCLDFlagHtml =         0x0200;  // Debug HTML => stderr
+  static const int kCLDFlagCr =           0x0400;  // <cr> per chunk if HTML
+  static const int kCLDFlagVerbose =      0x0800;  // More debug HTML => stderr
+  static const int kCLDFlagQuiet =        0x1000;  // Less debug HTML => stderr
+  static const int kCLDFlagEcho =         0x2000;  // Echo input => stderr
+
+
+/***
+
+Flag meanings:
+ kCLDFlagScoreAsQuads
+   Normally, several languages are detected solely by their Unicode script.
+   Combined with appropritate lookup tables, this flag forces them instead
+   to be detected via quadgrams. This can be a useful refinement when looking
+   for meaningful text in these languages, instead of just character sets.
+   The default tables do not support this use.
+ kCLDFlagHtml
+   For each detection call, write an HTML file to stderr, showing the text
+   chunks and their detected languages.
+ kCLDFlagCr
+   In that HTML file, force a new line for each chunk.
+ kCLDFlagVerbose
+   In that HTML file, show every lookup entry.
+ kCLDFlagQuiet
+   In that HTML file, suppress most of the output detail.
+ kCLDFlagEcho
+  Echo every input buffer to stderr.
+***/
+
+// Debug output: Print the resultchunkvector to file f
+void DumpResultChunkVector(FILE* f, const char* src,
+                           ResultChunkVector* resultchunkvector);
+
+#ifdef CLD2_DYNAMIC_MODE
+
+// If compiled with dynamic mode, load data from the specified file location.
+// If other data has already been loaded, it is discarded and the data is read
+// in from the specified file location again (even if the file has not changed).
+// WARNING: Before calling this method, language detection will always fail
+// and will always return the unknown language.
+void loadData(const char* fileName);
+
+// If compiled with dynamic mode, unload the previously-loaded data.
+// WARNING: After calling this method, language detection will no longer work
+// and will always return the unknown language.
+void unloadData();
+
+// Returns true if and only if data has been loaded via a call to loadData(...)
+// and has not been subsequently unladed via a call to unloadDate().
+bool isDataLoaded();
+
+#endif // #ifdef CLD2_DYNAMIC_MODE
+
+};      // End namespace CLD2
+
+#endif  // I18N_ENCODINGS_CLD2_PUBLIC_COMPACT_LANG_DET_H_
diff --git a/browser/components/translation/cld2/public/encodings.h b/browser/components/translation/cld2/public/encodings.h
new file mode 100644
index 000000000..1eb8f0a15
--- /dev/null
+++ b/browser/components/translation/cld2/public/encodings.h
@@ -0,0 +1,169 @@
+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//
+// Author: dsites@google.com (Dick Sites)
+//
+
+#ifndef I18N_ENCODINGS_CLD2_PUBLIC_ENCODINGS_H__
+#define I18N_ENCODINGS_CLD2_PUBLIC_ENCODINGS_H__
+
+namespace CLD2 {
+
+enum Encoding {
+  ISO_8859_1           =  0,  //   ASCII
+  ISO_8859_2           =  1,  //   Latin2
+  ISO_8859_3           =  2,  //
+  ISO_8859_4           =  3,  //   Latin4
+  ISO_8859_5           =  4,  //   ISO-8859-5
+  ISO_8859_6           =  5,  //   Arabic
+  ISO_8859_7           =  6,  //   Greek
+  ISO_8859_8           =  7,  //   Hebrew
+  ISO_8859_9           =  8,  //
+  ISO_8859_10          =  9,  //
+  JAPANESE_EUC_JP      = 10,  //   EUC_JP
+  JAPANESE_SHIFT_JIS   = 11,  //   SJS
+  JAPANESE_JIS         = 12,  //   JIS
+  CHINESE_BIG5         = 13,  //   BIG5
+  CHINESE_GB           = 14,  //   GB
+  CHINESE_EUC_CN       = 15,  // Misnamed. Should be EUC_TW. Was Basis Tech
+                              // CNS11643EUC, before that   EUC-CN(!)
+  KOREAN_EUC_KR        = 16,  //   KSC
+  UNICODE_UNUSED       = 17,  //   Unicode
+  CHINESE_EUC_DEC      = 18,  // Misnamed. Should be EUC_TW. Was
+                              // CNS11643EUC, before that   EUC.
+  CHINESE_CNS          = 19,  // Misnamed. Should be EUC_TW. Was
+                              // CNS11643EUC, before that   CNS.
+  CHINESE_BIG5_CP950   = 20,  //   BIG5_CP950
+  JAPANESE_CP932       = 21,  //   CP932
+  UTF8                 = 22,
+  UNKNOWN_ENCODING     = 23,
+  ASCII_7BIT           = 24,  // ISO_8859_1 with all characters <= 127.
+  RUSSIAN_KOI8_R       = 25,  //   KOI8R
+  RUSSIAN_CP1251       = 26,  //   CP1251
+
+  //----------------------------------------------------------
+  MSFT_CP1252          = 27,  // 27: CP1252 aka MSFT euro ascii
+  RUSSIAN_KOI8_RU      = 28,  // CP21866 aka KOI8-U, used for Ukrainian.
+                              // Misnamed, this is _not_ KOI8-RU but KOI8-U.
+                              // KOI8-U is used much more often than KOI8-RU.
+  MSFT_CP1250          = 29,  // CP1250 aka MSFT eastern european
+  ISO_8859_15          = 30,  // aka ISO_8859_0 aka ISO_8859_1 euroized
+  //----------------------------------------------------------
+
+  //----------------------------------------------------------
+  MSFT_CP1254          = 31,  // used for Turkish
+  MSFT_CP1257          = 32,  // used in Baltic countries
+  //----------------------------------------------------------
+
+  //----------------------------------------------------------
+  //----------------------------------------------------------
+  ISO_8859_11          = 33,  // aka TIS-620, used for Thai
+  MSFT_CP874           = 34,  // used for Thai
+  MSFT_CP1256          = 35,  // used for Arabic
+
+  //----------------------------------------------------------
+  MSFT_CP1255          = 36,  // Logical Hebrew Microsoft
+  ISO_8859_8_I         = 37,  // Iso Hebrew Logical
+  HEBREW_VISUAL        = 38,  // Iso Hebrew Visual
+  //----------------------------------------------------------
+
+  //----------------------------------------------------------
+  CZECH_CP852          = 39,
+  CZECH_CSN_369103     = 40,  // aka ISO_IR_139 aka KOI8_CS
+  MSFT_CP1253          = 41,  // used for Greek
+  RUSSIAN_CP866        = 42,
+  //----------------------------------------------------------
+
+  //----------------------------------------------------------
+  // Handled by iconv in glibc
+  ISO_8859_13          = 43,
+  ISO_2022_KR          = 44,
+  GBK                  = 45,
+  GB18030              = 46,
+  BIG5_HKSCS           = 47,
+  ISO_2022_CN          = 48,
+
+  //-----------------------------------------------------------
+  // Following 4 encodings are deprecated (font encodings)
+  TSCII                = 49,
+  TAMIL_MONO           = 50,
+  TAMIL_BI             = 51,
+  JAGRAN               = 52,
+
+
+  MACINTOSH_ROMAN      = 53,
+  UTF7                 = 54,
+
+  //-----------------------------------------------------------
+  // Following 2 encodings are deprecated (font encodings)
+  BHASKAR              = 55,  // Indic encoding - Devanagari
+  HTCHANAKYA           = 56,  // 56 Indic encoding - Devanagari
+
+  //-----------------------------------------------------------
+  UTF16BE              = 57,  // big-endian UTF-16
+  UTF16LE              = 58,  // little-endian UTF-16
+  UTF32BE              = 59,  // big-endian UTF-32
+  UTF32LE              = 60,  // little-endian UTF-32
+  //-----------------------------------------------------------
+
+  //-----------------------------------------------------------
+  // An encoding that means "This is not text, but it may have some
+  // simple ASCII text embedded". Intended input conversion
+  // is to keep strings of >=4 seven-bit ASCII characters
+  BINARYENC            = 61,
+  //-----------------------------------------------------------
+
+  //-----------------------------------------------------------
+  // Some Web pages allow a mixture of HZ-GB and GB-2312 by using
+  // ~{ ... ~} for 2-byte pairs, and the browsers support this.
+  HZ_GB_2312           = 62,
+  //-----------------------------------------------------------
+
+  //-----------------------------------------------------------
+  // Some external vendors make the common input error of
+  // converting MSFT_CP1252 to UTF8 *twice*.
+  UTF8UTF8             = 63,
+  //-----------------------------------------------------------
+
+  //-----------------------------------------------------------
+  // Following 6 encodings are deprecated (font encodings)
+  TAM_ELANGO           = 64,  // Elango - Tamil
+  TAM_LTTMBARANI       = 65,  // Barani - Tamil
+  TAM_SHREE            = 66,  // Shree - Tamil
+  TAM_TBOOMIS          = 67,  // TBoomis - Tamil
+  TAM_TMNEWS           = 68,  // TMNews - Tamil
+  TAM_WEBTAMIL         = 69,  // Webtamil - Tamil
+  //-----------------------------------------------------------
+
+  //-----------------------------------------------------------
+  // Shift_JIS variants used by Japanese cell phone carriers.
+  KDDI_SHIFT_JIS       = 70,
+  DOCOMO_SHIFT_JIS     = 71,
+  SOFTBANK_SHIFT_JIS   = 72,
+  // ISO-2022-JP variants used by KDDI and SoftBank.
+  KDDI_ISO_2022_JP     = 73,
+  SOFTBANK_ISO_2022_JP = 74,
+  //-----------------------------------------------------------
+
+  NUM_ENCODINGS        = 75,  // Always keep this at the end. It is not a
+                              // valid Encoding enum, it is only used to
+                              // indicate the total number of Encodings.
+};
+
+}       // End namespace CLD2
+
+#endif  // I18N_ENCODINGS_CLD2_PUBLIC_ENCODINGS_H__
+
+