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annotate mupdf-source/thirdparty/tesseract/src/training/unicharset/validate_javanese.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
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1 /**********************************************************************
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2 * File: validate_javanese.h
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3 * Description: Text validator for Javanese Script - aksara jawa.
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4 * Author: Shree Devi Kumar
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5 * Created: August 03, 2018
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6 *
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7 * Licensed under the Apache License, Version 2.0 (the "License");
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8 * you may not use this file except in compliance with the License.
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9 * You may obtain a copy of the License at
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10 * http://www.apache.org/licenses/LICENSE-2.0
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11 * Unless required by applicable law or agreed to in writing, software
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12 * distributed under the License is distributed on an "AS IS" BASIS,
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13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 * See the License for the specific language governing permissions and
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15 * limitations under the License.
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16 *
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17 **********************************************************************/
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19 #ifndef TESSERACT_TRAINING_VALIDATE_JAVANESE_H_
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20 #define TESSERACT_TRAINING_VALIDATE_JAVANESE_H_
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22 #include "validator.h"
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24 namespace tesseract {
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26 // Subclass of Validator that validates and segments Javanese scripts
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28 class ValidateJavanese : public Validator {
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29 public:
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30 ValidateJavanese(ViramaScript script, bool report_errors) : Validator(script, report_errors) {}
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31 ~ValidateJavanese() override = default;
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33 protected:
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34 // Returns whether codes matches the pattern for an Javanese Grapheme.
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35 // Consumes the next Grapheme in codes_[codes_used_++...] and copies it to
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36 // parts_ and output_. Returns true if a valid Grapheme was consumed,
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37 // otherwise does not increment codes_used_.
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38 bool ConsumeGraphemeIfValid() override;
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39 // Returns the CharClass corresponding to the given Unicode ch.
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40 Validator::CharClass UnicodeToCharClass(char32 ch) const override;
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42 private:
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43 // Helper consumes/copies a virama and any associated post-virama joiners.
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44 bool ConsumeViramaIfValid(IndicPair joiner, bool post_matra);
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45 // Helper consumes/copies a series of consonants separated by viramas while
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46 // valid, but not any vowel or other modifiers.
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47 bool ConsumeConsonantHeadIfValid();
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48 // Helper consumes/copies a tail part of a consonant, comprising optional
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49 // matra/piece, vowel modifier, vedic mark, terminating virama.
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50 bool ConsumeConsonantTailIfValid();
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51 // Helper consumes/copies a vowel and optional modifiers.
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52 bool ConsumeVowelIfValid();
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54 // Some special unicodes used only for Javanese processing.
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55 static const char32 kPengkal = 0xa9be; // Javanese Ya
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56 static const char32 kCakra = 0xa9bf; // Javanese Ra
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57 };
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59 } // namespace tesseract
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61 #endif // TESSERACT_TRAINING_VALIDATE_JAVANESE_H_