文件操作 - spellchecker_mac.mm

文件: /usr/share/atom/resources/app.asar.unpacked/node_modules/spellchecker/src/spellchecker_mac.mm

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#include "spellchecker_mac.h"
#include "spellchecker_hunspell.h"

#import <Cocoa/Cocoa.h>
#import <dispatch/dispatch.h>

namespace spellchecker {

static NSString* currentGlobalLanguage = nil;

MacSpellchecker::MacSpellchecker() {
  this->spellCheckerLanguage = nil;
  this->spellChecker = [NSSpellChecker sharedSpellChecker];
}

MacSpellchecker::~MacSpellchecker() {
  [this->spellCheckerLanguage release];
  this->spellCheckerLanguage = nil;
}

bool MacSpellchecker::SetDictionary(const std::string& language, const std::string& path) {
  @autoreleasepool {
    [this->spellCheckerLanguage release];

if (language.length() < 1) {
      this->spellCheckerLanguage = nil;
      this->UpdateGlobalSpellchecker();
      return true;
    }

this->spellCheckerLanguage = [[NSString alloc] initWithUTF8String: language.c_str()];

return [this->spellChecker setLanguage: this->spellCheckerLanguage] == YES;
  }
}

std::vector<std::string> MacSpellchecker::GetAvailableDictionaries(const std::string& path) {
  std::vector<std::string> ret;

@autoreleasepool {
    NSArray* languages = [this->spellChecker availableLanguages];

for (size_t i = 0; i < languages.count; ++i) {
      ret.push_back([[languages objectAtIndex:i] UTF8String]);
    }
  }

return ret;
}

bool MacSpellchecker::IsMisspelled(const std::string& word) {
  bool result;

@autoreleasepool {
    this->UpdateGlobalSpellchecker();

NSString* misspelling = [NSString stringWithUTF8String:word.c_str()];
    NSRange range = [this->spellChecker checkSpellingOfString:misspelling
                                                   startingAt:0];

result = range.length > 0;
  }

return result;
}

std::vector<MisspelledRange> MacSpellchecker::CheckSpelling(const uint16_t *text, size_t length) {
  std::vector<MisspelledRange> result;

@autoreleasepool {
    this->UpdateGlobalSpellchecker();

NSData *data = [[NSData alloc] initWithBytesNoCopy:(void *)(text) length:(length * 2) freeWhenDone:NO];
    NSString* string = [[NSString alloc] initWithData:data encoding:NSUTF16LittleEndianStringEncoding];
    NSArray *misspellings = [this->spellChecker checkString:string
                                                      range:NSMakeRange(0, string.length)
                                                      types:NSTextCheckingTypeSpelling
                                                    options:nil
                                     inSpellDocumentWithTag:0
                                                orthography:nil
                                                  wordCount:nil];
    for (NSTextCheckingResult *misspelling in misspellings) {
      MisspelledRange range;
      range.start = misspelling.range.location;
      range.end = misspelling.range.location + misspelling.range.length;
      result.push_back(range);
    }
  }

return result;
}

void MacSpellchecker::Add(const std::string& word) {
  @autoreleasepool {
    this->UpdateGlobalSpellchecker();

NSString* newWord = [NSString stringWithUTF8String:word.c_str()];
    [this->spellChecker learnWord:newWord];
  }
}

void MacSpellchecker::Remove(const std::string& word) {
  @autoreleasepool {
    this->UpdateGlobalSpellchecker();

NSString* newWord = [NSString stringWithUTF8String:word.c_str()];
    [this->spellChecker unlearnWord:newWord];
  }
}

std::vector<std::string> MacSpellchecker::GetCorrectionsForMisspelling(const std::string& word) {
  std::vector<std::string> corrections;

@autoreleasepool {
    this->UpdateGlobalSpellchecker();

NSString* misspelling = [NSString stringWithUTF8String:word.c_str()];
    NSString* language = [this->spellChecker language];
    NSRange range;

range.location = 0;
    range.length = [misspelling length];

NSArray* guesses = [this->spellChecker guessesForWordRange:range
                                                      inString:misspelling
                                                      language:language
                                        inSpellDocumentWithTag:0];

corrections.reserve(guesses.count);

for (size_t i = 0; i < guesses.count; ++i) {
      corrections.push_back([[guesses objectAtIndex:i] UTF8String]);
    }
  }

return corrections;
}

void MacSpellchecker::UpdateGlobalSpellchecker() {
  NSString* autoLanguage = @"___AUTO_LANGUAGE";
  NSString* globalLang = currentGlobalLanguage ? currentGlobalLanguage : autoLanguage;
  NSString* ourLang = this->spellCheckerLanguage ? this->spellCheckerLanguage : autoLanguage;

if ([globalLang isEqualToString: ourLang]) {
    return;
  }

currentGlobalLanguage = this->spellCheckerLanguage;
  if (!this->spellCheckerLanguage) {
    [this->spellChecker setAutomaticallyIdentifiesLanguages: YES];
  } else {
    [this->spellChecker setAutomaticallyIdentifiesLanguages: NO];
    [this->spellChecker setLanguage: this->spellCheckerLanguage];
  }
}

SpellcheckerImplementation* SpellcheckerFactory::CreateSpellchecker(int spellcheckerType) {
  bool preferHunspell = getenv("SPELLCHECKER_PREFER_HUNSPELL") && spellcheckerType != ALWAYS_USE_SYSTEM;

if (spellcheckerType != ALWAYS_USE_HUNSPELL && !preferHunspell) {
    return new MacSpellchecker();
  }

return new HunspellSpellchecker();
}

}  // namespace spellchecker

文件操作 - spellchecker_mac.mm

文件: /usr/share/atom/resources/app.asar.unpacked/node_modules/spellchecker/src/spellchecker_mac.mm

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