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https://github.com/unidoc/unipdf.git
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e2b3c6e6ba
* Add packed predefined cmaps * Add cmap cid range parsing * Load base cmap for predefined cmaps * Refactor pdfFont to Unicode methods * Preserve CharcodeBytesToUnicode behavior * Add support for CID-keyed Type 0 fonts * Add method documentation for the cmap package * Refactor and document charcode to Unicode conversion code * Add more cmap parsing test cases * Add more method documentation in the cmap package. * Remove unused code from the bcmaps package * Improve cmap test case * Assume identity when encoder is missing on regenerating field appearance * Add missing encoder log message * Add inverse CMap mappings * Add CMap encoder * Address golint notices and small fix in the cmap package * Keep smaller charcodes when generating cmap inverse mappings * Update extractor test case * Keep latest supplement charcodes/CIDs when computing inverse mappings * Fix comment typo
37 lines
901 B
Go
37 lines
901 B
Go
/*
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* This file is subject to the terms and conditions defined in
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* file 'LICENSE.md', which is part of this source code package.
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*/
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package cmap
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import (
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"errors"
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)
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// CMap parser errors.
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var (
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ErrBadCMap = errors.New("bad cmap")
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ErrBadCMapComment = errors.New("comment should start with %")
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ErrBadCMapDict = errors.New("invalid dict")
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)
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const (
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cidSystemInfo = "CIDSystemInfo"
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begincmap = "begincmap"
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endcmap = "endcmap"
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begincodespacerange = "begincodespacerange"
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endcodespacerange = "endcodespacerange"
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beginbfchar = "beginbfchar"
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endbfchar = "endbfchar"
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beginbfrange = "beginbfrange"
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endbfrange = "endbfrange"
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begincidrange = "begincidrange"
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endcidrange = "endcidrange"
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usecmap = "usecmap"
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cmapname = "CMapName"
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cmaptype = "CMapType"
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cmapversion = "CMapVersion"
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)
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