The 'ccmp' feature should be implemented before any other feature, so that these actions are given topmost priority. It is applicable to each of: Leading, Vowel and Trailing Jamo sequences. The 'ljmo' feature is used to substitute the correct shape of a leading consonant Jamo for a Hangul syllable. The shaping of leading consonant Jamos is context based and depends on whether the leading Jamo is followed by a vowel Jamo alone or a sequence of vowel and trailing Jamo.
For Example: the leading Jamo U is replaced by the correct leading form when followed by a vowel Jamo alone. The 'vjmo' feature is used to substitute the correct shape of a vowel Jamo for a Hangul syllable. The shaping of vowel Jamos is context based and depends on whether it is preceded by a leading Jamo alone, or a leading Jamo and followed by a trailing Jamo.
The 'tjmo' feature is used to substitute the correct shape of a trailing consonant Jamo for a Hangul syllable. The shaping of trailing consonant Jamos is context based and depends on whether the trailing Jamo is preceded by a leading Jamo filler and vowel Jamo or by a leading Jamo and vowel Jamo. For Example: U11C7 is replaced by the correct trailing consonant when preceded by a leading Jamo and vowel Jamo.
Features are encoded according to both a designated script and language system. The language system tag specifies a typographic convention associated with a language or linguistic subgroup. Currently, the Uniscribe engine only supports the 'default' language for each script. However, font developers may want to build language specific features which are supported in other applications and will be supported in future Microsoft OpenType implementations.
Note: both the script and language tags are case sensitive script tags should be lowercase, language tags are all caps and must contain four characters ie.
Introduction The Korean Hangul script is a 'syllabic' script. Glossary The following terms are useful for understanding the layout features and script rules discussed in this document. The stages are: Compose Old Hangul Jamo combinations Identify syllable boundaries with OTLS Analyze the syllables Shape glyphs with OTLS OpenType Library Services The descriptions which follow will help font developers understand the rationale for the Korean Hangul feature encoding model, and help application developers better understand how layout clients can divide responsibilities with operating system functions.
Compose Old Hangul Jamo combinations The shaping engine receives a sequence of characters character run , which have been identified into sequences of leading consonant L , vowel V and trailing consonant T Jamos. The result of this process is a string of registered Old Hangul Jamos like the example below: Analyze the Syllables The syllable unit that the shaping engine receives for the purpose of shaping is a string of Unicode characters, in a sequence.
Shaping with OTLS The first step Uniscribe takes in shaping the character string is to map all characters to their nominal form glyphs. The steps of the shaping process are outlined below.
Shaping features: Language forms Apply feature ' ccmp ' to preprocess any glyphs that require composition Apply feature ' ljmo ' to get the leading consonant Jamo Apply feature ' vjmo ' to get the vowel Jamo Apply feature ' tjmo ' to get the trailing consonant Jamo Handling Invalid Combining Marks Combining marks and signs that appear in text not in conjunction with a valid consonant base are considered invalid.
Leading consonant Jamo Feature Tag: 'ljmo' The 'ljmo' feature is used to substitute the correct shape of a leading consonant Jamo for a Hangul syllable. Vowel Jamo Feature Tag: 'vjmo' The 'vjmo' feature is used to substitute the correct shape of a vowel Jamo for a Hangul syllable. Trailing consonant Jamo Feature Tag: 'tjmo' The 'tjmo' feature is used to substitute the correct shape of a trailing consonant Jamo for a Hangul syllable.
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Euljiro-Che Euljiro-che is an open-source font that was handwritten with thick brush. The font is […] Calligraphy. Need more help? Join the discussion. Was this information helpful? Yes No. Thank you! Any more feedback? The more you tell us the more we can help. Can you help us improve? Resolved my issue. Clear instructions. Easy to follow. No jargon. Pictures helped. Didn't match my screen. Incorrect instructions. Too technical. Not enough information.
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