mirror of
https://github.com/unidoc/unipdf.git
synced 2025-04-27 13:48:51 +08:00
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
90 lines
2.3 KiB
Go
90 lines
2.3 KiB
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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"testing"
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"github.com/stretchr/testify/require"
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"github.com/unidoc/unipdf/v3/internal/cmap/bcmaps"
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)
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func TestIsPredefinedCMap(t *testing.T) {
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cmaps := bcmaps.AssetNames()
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for _, cmap := range cmaps {
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require.True(t, IsPredefinedCMap(cmap))
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_, err := bcmaps.Asset(cmap)
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require.NoError(t, err)
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}
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}
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func TestLoadPredefinedCMap(t *testing.T) {
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// Load base charcode to CID CMap.
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cmap, err := LoadPredefinedCMap("90ms-RKSJ-H")
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require.NoError(t, err)
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require.Equal(t, cmap.name, "90ms-RKSJ-H")
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require.Equal(t, cmap.ctype, 1)
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require.Equal(t, cmap.nbits, 16)
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require.Equal(t, cmap.usecmap, "")
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require.Equal(t, cmap.systemInfo.String(), "Adobe-Japan1-002")
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require.Equal(t, cmap.codespaces, []Codespace{
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Codespace{NumBytes: 1, Low: 0x0, High: 0x80},
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Codespace{NumBytes: 1, Low: 0xa0, High: 0xdf},
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Codespace{NumBytes: 2, Low: 0x8140, High: 0x9ffc},
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Codespace{NumBytes: 2, Low: 0xe040, High: 0xfcfc},
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})
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expCIDs := map[CharCode]CharCode{
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32: 231,
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125: 324,
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37952: 3287,
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38014: 3349,
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38016: 3350,
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38140: 3474,
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160: 326,
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223: 389,
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64576: 8706,
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64587: 8717,
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34670: 8047,
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33972: 7554,
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}
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for code, expCID := range expCIDs {
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cid, ok := cmap.CharcodeToCID(code)
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require.True(t, ok)
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require.Equal(t, cid, expCID)
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}
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// Load charcode to CID CMap using base.
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cmap, err = LoadPredefinedCMap("90ms-RKSJ-V")
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require.NoError(t, err)
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require.Equal(t, cmap.name, "90ms-RKSJ-V")
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require.Equal(t, cmap.ctype, 1)
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require.Equal(t, cmap.nbits, 16)
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require.Equal(t, cmap.usecmap, "90ms-RKSJ-H")
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require.Equal(t, cmap.systemInfo.String(), "Adobe-Japan1-002")
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require.Equal(t, cmap.codespaces, []Codespace{
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Codespace{NumBytes: 1, Low: 0x0, High: 0x80},
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Codespace{NumBytes: 1, Low: 0xa0, High: 0xdf},
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Codespace{NumBytes: 2, Low: 0x8140, High: 0x9ffc},
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Codespace{NumBytes: 2, Low: 0xe040, High: 0xfcfc},
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})
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// Test CID inheritance and CID override.
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expCIDs[34670] = 8349
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expCIDs[33972] = 7554
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expCIDs[33089] = 7887
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expCIDs[33090] = 7888
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for code, expCID := range expCIDs {
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cid, ok := cmap.CharcodeToCID(code)
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require.True(t, ok)
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require.Equal(t, cid, expCID)
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}
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}
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