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annotate mupdf-source/thirdparty/tesseract/src/training/unicharset/validate_myanmar.h @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
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1 #ifndef TESSERACT_TRAINING_VALIDATE_MYANMAR_H_
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2 #define TESSERACT_TRAINING_VALIDATE_MYANMAR_H_
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4 #include "validator.h"
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6 namespace tesseract {
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8 // Subclass of Validator that validates and segments Myanmar.
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9 class ValidateMyanmar : public Validator {
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10 public:
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11 ValidateMyanmar(ViramaScript script, bool report_errors) : Validator(script, report_errors) {}
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12 ~ValidateMyanmar() override = default;
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14 protected:
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15 // Returns whether codes matches the pattern for a Myanmar Grapheme.
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16 // Consumes the next Grapheme in codes_[codes_used_++...] and copies it to
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17 // parts_ and output_. Returns true if a valid Grapheme was consumed,
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18 // otherwise does not increment codes_used_.
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19 bool ConsumeGraphemeIfValid() override;
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20 // Returns the CharClass corresponding to the given Unicode ch.
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21 Validator::CharClass UnicodeToCharClass(char32 ch) const override;
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23 private:
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24 // Helper consumes/copies a virama and any subscript consonant.
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25 // Returns true if the end of input is reached.
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26 bool ConsumeSubscriptIfPresent();
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27 // Helper consumes/copies a series of optional signs.
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28 // Returns true if the end of input is reached.
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29 bool ConsumeOptionalSignsIfPresent();
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30 // Returns true if the unicode is a Myanmar "letter" including consonants
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31 // and independent vowels. Although table 16-3 distinguishes between some
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32 // base consonants and vowels, the extensions make no such distinction, so we
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33 // put them all into a single bucket.
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34 static bool IsMyanmarLetter(char32 ch);
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35 // Returns true if ch is a Myanmar digit or other symbol that does not take
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36 // part in being a syllable.
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37 static bool IsMyanmarOther(char32 ch);
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39 // Some special unicodes used only for Myanmar processing.
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40 static const char32 kMyanmarAsat = 0x103a;
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41 static const char32 kMyanmarMedialYa = 0x103b;
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42 };
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44 } // namespace tesseract
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46 #endif // TESSERACT_TRAINING_VALIDATE_MYANMAR_H_