components/omnibox/autocomplete_match.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/omnibox/autocomplete_match.h"
   6
   7 #include "base/i18n/time_formatting.h"
   8 #include "base/logging.h"
   9 #include "base/strings/string16.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/strings/utf_string_conversions.h"
  13 #include "base/time/time.h"
  14 #include "components/omnibox/autocomplete_provider.h"
  15 #include "components/omnibox/suggestion_answer.h"
  16 #include "components/search_engines/template_url.h"
  17 #include "components/search_engines/template_url_service.h"
  18 #include "grit/components_scaled_resources.h"
  19
  20 namespace {
  21
  22 bool IsTrivialClassification(const ACMatchClassifications& classifications) {
  23   return classifications.empty() ||
  24       ((classifications.size() == 1) &&
  25        (classifications.back().style == ACMatchClassification::NONE));
  26 }
  27
  28 }  // namespace
  29
  30 // AutocompleteMatch ----------------------------------------------------------
  31
  32 // static
  33 const base::char16 AutocompleteMatch::kInvalidChars[] = {
  34   '\n', '\r', '\t',
  35   0x2028,  // Line separator
  36   0x2029,  // Paragraph separator
  37   0
  38 };
  39
  40 AutocompleteMatch::AutocompleteMatch()
  41     : provider(NULL),
  42       relevance(0),
  43       typed_count(-1),
  44       deletable(false),
  45       allowed_to_be_default_match(false),
  46       transition(ui::PAGE_TRANSITION_GENERATED),
  47       is_history_what_you_typed_match(false),
  48       type(AutocompleteMatchType::SEARCH_WHAT_YOU_TYPED),
  49       from_previous(false) {
  50 }
  51
  52 AutocompleteMatch::AutocompleteMatch(AutocompleteProvider* provider,
  53                                      int relevance,
  54                                      bool deletable,
  55                                      Type type)
  56     : provider(provider),
  57       relevance(relevance),
  58       typed_count(-1),
  59       deletable(deletable),
  60       allowed_to_be_default_match(false),
  61       transition(ui::PAGE_TRANSITION_TYPED),
  62       is_history_what_you_typed_match(false),
  63       type(type),
  64       from_previous(false) {
  65 }
  66
  67 AutocompleteMatch::AutocompleteMatch(const AutocompleteMatch& match)
  68     : provider(match.provider),
  69       relevance(match.relevance),
  70       typed_count(match.typed_count),
  71       deletable(match.deletable),
  72       fill_into_edit(match.fill_into_edit),
  73       inline_autocompletion(match.inline_autocompletion),
  74       allowed_to_be_default_match(match.allowed_to_be_default_match),
  75       destination_url(match.destination_url),
  76       stripped_destination_url(match.stripped_destination_url),
  77       contents(match.contents),
  78       contents_class(match.contents_class),
  79       description(match.description),
  80       description_class(match.description_class),
  81       answer_contents(match.answer_contents),
  82       answer_type(match.answer_type),
  83       answer(SuggestionAnswer::copy(match.answer.get())),
  84       transition(match.transition),
  85       is_history_what_you_typed_match(match.is_history_what_you_typed_match),
  86       type(match.type),
  87       associated_keyword(match.associated_keyword.get() ?
  88           new AutocompleteMatch(*match.associated_keyword) : NULL),
  89       keyword(match.keyword),
  90       from_previous(match.from_previous),
  91       search_terms_args(match.search_terms_args.get() ?
  92           new TemplateURLRef::SearchTermsArgs(*match.search_terms_args) :
  93           NULL),
  94       additional_info(match.additional_info),
  95       duplicate_matches(match.duplicate_matches) {
  96 }
  97
  98 AutocompleteMatch::~AutocompleteMatch() {
  99 }
 100
 101 AutocompleteMatch& AutocompleteMatch::operator=(
 102     const AutocompleteMatch& match) {
 103   if (this == &match)
 104     return *this;
 105
 106   provider = match.provider;
 107   relevance = match.relevance;
 108   typed_count = match.typed_count;
 109   deletable = match.deletable;
 110   fill_into_edit = match.fill_into_edit;
 111   inline_autocompletion = match.inline_autocompletion;
 112   allowed_to_be_default_match = match.allowed_to_be_default_match;
 113   destination_url = match.destination_url;
 114   stripped_destination_url = match.stripped_destination_url;
 115   contents = match.contents;
 116   contents_class = match.contents_class;
 117   description = match.description;
 118   description_class = match.description_class;
 119   answer_contents = match.answer_contents;
 120   answer_type = match.answer_type;
 121   answer = SuggestionAnswer::copy(match.answer.get());
 122   transition = match.transition;
 123   is_history_what_you_typed_match = match.is_history_what_you_typed_match;
 124   type = match.type;
 125   associated_keyword.reset(match.associated_keyword.get() ?
 126       new AutocompleteMatch(*match.associated_keyword) : NULL);
 127   keyword = match.keyword;
 128   from_previous = match.from_previous;
 129   search_terms_args.reset(match.search_terms_args.get() ?
 130       new TemplateURLRef::SearchTermsArgs(*match.search_terms_args) : NULL);
 131   additional_info = match.additional_info;
 132   duplicate_matches = match.duplicate_matches;
 133   return *this;
 134 }
 135
 136 // static
 137 int AutocompleteMatch::TypeToIcon(Type type) {
 138 #if !defined(OS_IOS)
 139   static const int kIcons[] = {
 140       IDR_OMNIBOX_HTTP,           // URL_WHAT_YOU_TYPE
 141       IDR_OMNIBOX_HTTP,           // HISTORY_URL
 142       IDR_OMNIBOX_HTTP,           // HISTORY_TITLE
 143       IDR_OMNIBOX_HTTP,           // HISTORY_BODY
 144       IDR_OMNIBOX_HTTP,           // HISTORY_KEYWORD
 145       IDR_OMNIBOX_HTTP,           // NAVSUGGEST
 146       IDR_OMNIBOX_SEARCH,         // SEARCH_WHAT_YOU_TYPED
 147       IDR_OMNIBOX_SEARCH,         // SEARCH_HISTORY
 148       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST
 149       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_ENTITY
 150       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_INFINITE
 151       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_PERSONALIZED
 152       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_PROFILE
 153       IDR_OMNIBOX_SEARCH,         // SEARCH_OTHER_ENGINE
 154       IDR_OMNIBOX_EXTENSION_APP,  // EXTENSION_APP
 155       IDR_OMNIBOX_SEARCH,         // CONTACT_DEPRECATED
 156       IDR_OMNIBOX_HTTP,           // BOOKMARK_TITLE
 157       IDR_OMNIBOX_HTTP,           // NAVSUGGEST_PERSONALIZED
 158       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_ANSWER
 159   };
 160 #else
 161   static const int kIcons[] = {
 162       IDR_OMNIBOX_HTTP,           // URL_WHAT_YOU_TYPE
 163       IDR_OMNIBOX_HISTORY,        // HISTORY_URL
 164       IDR_OMNIBOX_HISTORY,        // HISTORY_TITLE
 165       IDR_OMNIBOX_HISTORY,        // HISTORY_BODY
 166       IDR_OMNIBOX_HISTORY,        // HISTORY_KEYWORD
 167       IDR_OMNIBOX_HTTP,           // NAVSUGGEST
 168       IDR_OMNIBOX_SEARCH,         // SEARCH_WHAT_YOU_TYPED
 169       IDR_OMNIBOX_HISTORY,        // SEARCH_HISTORY
 170       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST
 171       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_ENTITY
 172       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_INFINITE
 173       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_PERSONALIZED
 174       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_PROFILE
 175       IDR_OMNIBOX_SEARCH,         // SEARCH_OTHER_ENGINE
 176       IDR_OMNIBOX_EXTENSION_APP,  // EXTENSION_APP
 177       IDR_OMNIBOX_SEARCH,         // CONTACT_DEPRECATED
 178       IDR_OMNIBOX_HTTP,           // BOOKMARK_TITLE
 179       IDR_OMNIBOX_HTTP,           // NAVSUGGEST_PERSONALIZED
 180       IDR_OMNIBOX_SEARCH,         // SEARCH_SUGGEST_ANSWER
 181   };
 182 #endif
 183   static_assert(arraysize(kIcons) == AutocompleteMatchType::NUM_TYPES,
 184                 "icons array must have NUM_TYPES elements");
 185   return kIcons[type];
 186 }
 187
 188 // static
 189 bool AutocompleteMatch::MoreRelevant(const AutocompleteMatch& elem1,
 190                                      const AutocompleteMatch& elem2) {
 191   // For equal-relevance matches, we sort alphabetically, so that providers
 192   // who return multiple elements at the same priority get a "stable" sort
 193   // across multiple updates.
 194   return (elem1.relevance == elem2.relevance) ?
 195       (elem1.contents < elem2.contents) : (elem1.relevance > elem2.relevance);
 196 }
 197
 198 // static
 199 bool AutocompleteMatch::DestinationsEqual(const AutocompleteMatch& elem1,
 200                                           const AutocompleteMatch& elem2) {
 201   if (elem1.stripped_destination_url.is_empty() &&
 202       elem2.stripped_destination_url.is_empty())
 203     return false;
 204   return elem1.stripped_destination_url == elem2.stripped_destination_url;
 205 }
 206
 207 // static
 208 void AutocompleteMatch::ClassifyMatchInString(
 209     const base::string16& find_text,
 210     const base::string16& text,
 211     int style,
 212     ACMatchClassifications* classification) {
 213   ClassifyLocationInString(text.find(find_text), find_text.length(),
 214                            text.length(), style, classification);
 215 }
 216
 217 // static
 218 void AutocompleteMatch::ClassifyLocationInString(
 219     size_t match_location,
 220     size_t match_length,
 221     size_t overall_length,
 222     int style,
 223     ACMatchClassifications* classification) {
 224   classification->clear();
 225
 226   // Don't classify anything about an empty string
 227   // (AutocompleteMatch::Validate() checks this).
 228   if (overall_length == 0)
 229     return;
 230
 231   // Mark pre-match portion of string (if any).
 232   if (match_location != 0) {
 233     classification->push_back(ACMatchClassification(0, style));
 234   }
 235
 236   // Mark matching portion of string.
 237   if (match_location == base::string16::npos) {
 238     // No match, above classification will suffice for whole string.
 239     return;
 240   }
 241   // Classifying an empty match makes no sense and will lead to validation
 242   // errors later.
 243   DCHECK_GT(match_length, 0U);
 244   classification->push_back(ACMatchClassification(match_location,
 245       (style | ACMatchClassification::MATCH) & ~ACMatchClassification::DIM));
 246
 247   // Mark post-match portion of string (if any).
 248   const size_t after_match(match_location + match_length);
 249   if (after_match < overall_length) {
 250     classification->push_back(ACMatchClassification(after_match, style));
 251   }
 252 }
 253
 254 // static
 255 AutocompleteMatch::ACMatchClassifications
 256     AutocompleteMatch::MergeClassifications(
 257     const ACMatchClassifications& classifications1,
 258     const ACMatchClassifications& classifications2) {
 259   // We must return the empty vector only if both inputs are truly empty.
 260   // The result of merging an empty vector with a single (0, NONE)
 261   // classification is the latter one-entry vector.
 262   if (IsTrivialClassification(classifications1))
 263     return classifications2.empty() ? classifications1 : classifications2;
 264   if (IsTrivialClassification(classifications2))
 265     return classifications1;
 266
 267   ACMatchClassifications output;
 268   for (ACMatchClassifications::const_iterator i = classifications1.begin(),
 269        j = classifications2.begin(); i != classifications1.end();) {
 270     AutocompleteMatch::AddLastClassificationIfNecessary(&output,
 271         std::max(i->offset, j->offset), i->style | j->style);
 272     const size_t next_i_offset = (i + 1) == classifications1.end() ?
 273         static_cast<size_t>(-1) : (i + 1)->offset;
 274     const size_t next_j_offset = (j + 1) == classifications2.end() ?
 275         static_cast<size_t>(-1) : (j + 1)->offset;
 276     if (next_i_offset >= next_j_offset)
 277       ++j;
 278     if (next_j_offset >= next_i_offset)
 279       ++i;
 280   }
 281
 282   return output;
 283 }
 284
 285 // static
 286 std::string AutocompleteMatch::ClassificationsToString(
 287     const ACMatchClassifications& classifications) {
 288   std::string serialized_classifications;
 289   for (size_t i = 0; i < classifications.size(); ++i) {
 290     if (i)
 291       serialized_classifications += ',';
 292     serialized_classifications += base::IntToString(classifications[i].offset) +
 293         ',' + base::IntToString(classifications[i].style);
 294   }
 295   return serialized_classifications;
 296 }
 297
 298 // static
 299 ACMatchClassifications AutocompleteMatch::ClassificationsFromString(
 300     const std::string& serialized_classifications) {
 301   ACMatchClassifications classifications;
 302   std::vector<std::string> tokens;
 303   Tokenize(serialized_classifications, ",", &tokens);
 304   DCHECK(!(tokens.size() & 1));  // The number of tokens should be even.
 305   for (size_t i = 0; i < tokens.size(); i += 2) {
 306     int classification_offset = 0;
 307     int classification_style = ACMatchClassification::NONE;
 308     if (!base::StringToInt(tokens[i], &classification_offset) ||
 309         !base::StringToInt(tokens[i + 1], &classification_style)) {
 310       NOTREACHED();
 311       return classifications;
 312     }
 313     classifications.push_back(ACMatchClassification(classification_offset,
 314                                                     classification_style));
 315   }
 316   return classifications;
 317 }
 318
 319 // static
 320 void AutocompleteMatch::AddLastClassificationIfNecessary(
 321     ACMatchClassifications* classifications,
 322     size_t offset,
 323     int style) {
 324   DCHECK(classifications);
 325   if (classifications->empty() || classifications->back().style != style) {
 326     DCHECK(classifications->empty() ||
 327            (offset > classifications->back().offset));
 328     classifications->push_back(ACMatchClassification(offset, style));
 329   }
 330 }
 331
 332 // static
 333 base::string16 AutocompleteMatch::SanitizeString(const base::string16& text) {
 334   // NOTE: This logic is mirrored by |sanitizeString()| in
 335   // omnibox_custom_bindings.js.
 336   base::string16 result;
 337   base::TrimWhitespace(text, base::TRIM_LEADING, &result);
 338   base::RemoveChars(result, kInvalidChars, &result);
 339   return result;
 340 }
 341
 342 // static
 343 bool AutocompleteMatch::IsSearchType(Type type) {
 344   return type == AutocompleteMatchType::SEARCH_WHAT_YOU_TYPED ||
 345          type == AutocompleteMatchType::SEARCH_HISTORY ||
 346          type == AutocompleteMatchType::SEARCH_SUGGEST ||
 347          type == AutocompleteMatchType::SEARCH_OTHER_ENGINE ||
 348          IsSpecializedSearchType(type);
 349 }
 350
 351 // static
 352 bool AutocompleteMatch::IsSpecializedSearchType(Type type) {
 353   return type == AutocompleteMatchType::SEARCH_SUGGEST_ENTITY ||
 354          type == AutocompleteMatchType::SEARCH_SUGGEST_INFINITE ||
 355          type == AutocompleteMatchType::SEARCH_SUGGEST_PERSONALIZED ||
 356          type == AutocompleteMatchType::SEARCH_SUGGEST_PROFILE ||
 357          type == AutocompleteMatchType::SEARCH_SUGGEST_ANSWER;
 358 }
 359
 360 // static
 361 TemplateURL* AutocompleteMatch::GetTemplateURLWithKeyword(
 362     TemplateURLService* template_url_service,
 363     const base::string16& keyword,
 364     const std::string& host) {
 365   if (template_url_service == NULL)
 366     return NULL;
 367   TemplateURL* template_url = keyword.empty() ?
 368       NULL : template_url_service->GetTemplateURLForKeyword(keyword);
 369   return (template_url || host.empty()) ?
 370       template_url : template_url_service->GetTemplateURLForHost(host);
 371 }
 372
 373 // static
 374 GURL AutocompleteMatch::GURLToStrippedGURL(
 375     const GURL& url,
 376     TemplateURLService* template_url_service,
 377     const base::string16& keyword) {
 378   if (!url.is_valid())
 379     return url;
 380
 381   GURL stripped_destination_url = url;
 382
 383   // If the destination URL looks like it was generated from a TemplateURL,
 384   // remove all substitutions other than the search terms.  This allows us
 385   // to eliminate cases like past search URLs from history that differ only
 386   // by some obscure query param from each other or from the search/keyword
 387   // provider matches.
 388   TemplateURL* template_url = GetTemplateURLWithKeyword(
 389       template_url_service, keyword, stripped_destination_url.host());
 390   if (template_url != NULL &&
 391       template_url->SupportsReplacement(
 392           template_url_service->search_terms_data())) {
 393     base::string16 search_terms;
 394     if (template_url->ExtractSearchTermsFromURL(
 395         stripped_destination_url,
 396         template_url_service->search_terms_data(),
 397         &search_terms)) {
 398       stripped_destination_url =
 399           GURL(template_url->url_ref().ReplaceSearchTerms(
 400               TemplateURLRef::SearchTermsArgs(search_terms),
 401               template_url_service->search_terms_data()));
 402     }
 403   }
 404
 405   // |replacements| keeps all the substitions we're going to make to
 406   // from {destination_url} to {stripped_destination_url}.  |need_replacement|
 407   // is a helper variable that helps us keep track of whether we need
 408   // to apply the replacement.
 409   bool needs_replacement = false;
 410   GURL::Replacements replacements;
 411
 412   // Remove the www. prefix from the host.
 413   static const char prefix[] = "www.";
 414   static const size_t prefix_len = arraysize(prefix) - 1;
 415   std::string host = stripped_destination_url.host();
 416   if (host.compare(0, prefix_len, prefix) == 0) {
 417     host = host.substr(prefix_len);
 418     replacements.SetHostStr(host);
 419     needs_replacement = true;
 420   }
 421
 422   // Replace https protocol with http protocol.
 423   if (stripped_destination_url.SchemeIs(url::kHttpsScheme)) {
 424     replacements.SetScheme(url::kHttpScheme,
 425                            url::Component(0, strlen(url::kHttpScheme)));
 426     needs_replacement = true;
 427   }
 428
 429   if (needs_replacement)
 430     stripped_destination_url = stripped_destination_url.ReplaceComponents(
 431         replacements);
 432   return stripped_destination_url;
 433 }
 434
 435 void AutocompleteMatch::ComputeStrippedDestinationURL(
 436     TemplateURLService* template_url_service) {
 437   stripped_destination_url =
 438       GURLToStrippedGURL(destination_url, template_url_service, keyword);
 439 }
 440
 441 void AutocompleteMatch::EnsureUWYTIsAllowedToBeDefault(
 442     const GURL& canonical_input_url,
 443     TemplateURLService* template_url_service) {
 444   if (!allowed_to_be_default_match) {
 445     const GURL& stripped_canonical_input_url =
 446         AutocompleteMatch::GURLToStrippedGURL(
 447             canonical_input_url, template_url_service, base::string16());
 448     ComputeStrippedDestinationURL(template_url_service);
 449     allowed_to_be_default_match =
 450         stripped_canonical_input_url == stripped_destination_url;
 451   }
 452 }
 453
 454 void AutocompleteMatch::GetKeywordUIState(
 455     TemplateURLService* template_url_service,
 456     base::string16* keyword,
 457     bool* is_keyword_hint) const {
 458   *is_keyword_hint = associated_keyword.get() != NULL;
 459   keyword->assign(*is_keyword_hint ? associated_keyword->keyword :
 460       GetSubstitutingExplicitlyInvokedKeyword(template_url_service));
 461 }
 462
 463 base::string16 AutocompleteMatch::GetSubstitutingExplicitlyInvokedKeyword(
 464     TemplateURLService* template_url_service) const {
 465   if (transition != ui::PAGE_TRANSITION_KEYWORD ||
 466       template_url_service == NULL) {
 467     return base::string16();
 468   }
 469
 470   const TemplateURL* t_url = GetTemplateURL(template_url_service, false);
 471   return (t_url &&
 472           t_url->SupportsReplacement(
 473               template_url_service->search_terms_data())) ?
 474       keyword : base::string16();
 475 }
 476
 477 TemplateURL* AutocompleteMatch::GetTemplateURL(
 478     TemplateURLService* template_url_service,
 479     bool allow_fallback_to_destination_host) const {
 480   return GetTemplateURLWithKeyword(
 481       template_url_service, keyword,
 482       allow_fallback_to_destination_host ?
 483           destination_url.host() : std::string());
 484 }
 485
 486 void AutocompleteMatch::RecordAdditionalInfo(const std::string& property,
 487                                              const std::string& value) {
 488   DCHECK(!property.empty());
 489   DCHECK(!value.empty());
 490   additional_info[property] = value;
 491 }
 492
 493 void AutocompleteMatch::RecordAdditionalInfo(const std::string& property,
 494                                              int value) {
 495   RecordAdditionalInfo(property, base::IntToString(value));
 496 }
 497
 498 void AutocompleteMatch::RecordAdditionalInfo(const std::string& property,
 499                                              const base::Time& value) {
 500   RecordAdditionalInfo(property,
 501                        base::UTF16ToUTF8(
 502                            base::TimeFormatShortDateAndTime(value)));
 503 }
 504
 505 std::string AutocompleteMatch::GetAdditionalInfo(
 506     const std::string& property) const {
 507   AdditionalInfo::const_iterator i(additional_info.find(property));
 508   return (i == additional_info.end()) ? std::string() : i->second;
 509 }
 510
 511 bool AutocompleteMatch::IsVerbatimType() const {
 512   const bool is_keyword_verbatim_match =
 513       (type == AutocompleteMatchType::SEARCH_OTHER_ENGINE &&
 514        provider != NULL &&
 515        provider->type() == AutocompleteProvider::TYPE_SEARCH);
 516   return type == AutocompleteMatchType::SEARCH_WHAT_YOU_TYPED ||
 517       type == AutocompleteMatchType::URL_WHAT_YOU_TYPED ||
 518       is_keyword_verbatim_match;
 519 }
 520
 521 bool AutocompleteMatch::SupportsDeletion() const {
 522   if (deletable)
 523     return true;
 524
 525   for (ACMatches::const_iterator it(duplicate_matches.begin());
 526        it != duplicate_matches.end(); ++it) {
 527     if (it->deletable)
 528       return true;
 529   }
 530   return false;
 531 }
 532
 533 #ifndef NDEBUG
 534 void AutocompleteMatch::Validate() const {
 535   ValidateClassifications(contents, contents_class);
 536   ValidateClassifications(description, description_class);
 537 }
 538
 539 void AutocompleteMatch::ValidateClassifications(
 540     const base::string16& text,
 541     const ACMatchClassifications& classifications) const {
 542   if (text.empty()) {
 543     DCHECK(classifications.empty());
 544     return;
 545   }
 546
 547   // The classifications should always cover the whole string.
 548   DCHECK(!classifications.empty()) << "No classification for \"" << text << '"';
 549   DCHECK_EQ(0U, classifications[0].offset)
 550       << "Classification misses beginning for \"" << text << '"';
 551   if (classifications.size() == 1)
 552     return;
 553
 554   // The classifications should always be sorted.
 555   size_t last_offset = classifications[0].offset;
 556   for (ACMatchClassifications::const_iterator i(classifications.begin() + 1);
 557        i != classifications.end(); ++i) {
 558     const char* provider_name = provider ? provider->GetName() : "None";
 559     DCHECK_GT(i->offset, last_offset)
 560         << " Classification for \"" << text << "\" with offset of " << i->offset
 561         << " is unsorted in relation to last offset of " << last_offset
 562         << ". Provider: " << provider_name << ".";
 563     DCHECK_LT(i->offset, text.length())
 564         << " Classification of [" << i->offset << "," << text.length()
 565         << "] is out of bounds for \"" << text << "\". Provider: "
 566         << provider_name << ".";
 567     last_offset = i->offset;
 568   }
 569 }
 570 #endif