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Generate new .txt version of the spec.
Based on the changes in the .nroff source in PR #229
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@ -93,7 +93,7 @@ Table of Contents
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12. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 34
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13. Informative References . . . . . . . . . . . . . . . . . . . 35
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14. Source code . . . . . . . . . . . . . . . . . . . . . . . . . 35
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15. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 35
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15. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 35
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Appendix A. Static dictionary data . . . . . . . . . . . . . . . 35
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Appendix B. List of word transformations . . . . . . . . . . . . 116
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Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 119
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@ -1161,10 +1161,10 @@ Internet-Draft Brotli October 2015
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There are four methods, called context modes, to compute the Context
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ID:
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* MSB6, where the Context ID is the value of six most
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significant bits of p1,
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* LSB6, where the Context ID is the value of six least
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significant bits of p1,
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* MSB6, where the Context ID is the value of six most
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significant bits of p1,
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* UTF8, where the Context ID is a complex function of p1, p2,
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optimized for text compression, and
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* Signed, where Context ID is a complex function of p1, p2,
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@ -1434,16 +1434,13 @@ Internet-Draft Brotli October 2015
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where the _i subscript denotes the transform_id above. Each T_i is
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one of the following 21 elementary transforms:
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Identity, OmitLast1, ..., OmitLast9, UppercaseFirst, UppercaseAll,
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OmitFirst1, ..., OmitFirst9
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Identity, UppercaseFirst, UppercaseAll,
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OmitFirst1, ..., OmitFirst9, OmitLast1, ..., OmitLast9
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The form of these elementary transforms are as follows:
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Identity(word) = word
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OmitLastk(word) = the first (length(word) - k) bytes of word, or
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empty string if length(word) < k
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UppercaseFirst(word) = first UTF-8 character of word upper-cased
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UppercaseAll(word) = all UTF-8 characters of word upper-cased
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@ -1451,6 +1448,9 @@ Internet-Draft Brotli October 2015
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OmitFirstk(word) = the last (length(word) - k) bytes of word, or
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empty string if length(word) < k
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OmitLastk(word) = the first (length(word) - k) bytes of word, or
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empty string if length(word) < k
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For the purposes of UppercaseAll, word is parsed into UTF-8
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@ -1831,7 +1831,7 @@ Internet-Draft Brotli October 2015
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save previous block type
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read block count using HTREE_BLEN_I and set BLEN_I
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decrement BLEN_I
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read insert and copy length, ILEN, CLEN with HTREEI[BTYPE_I]
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read insert and copy length, ILEN, CLEN using HTREEI[BTYPE_I]
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loop for ILEN
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if BLEN_L is zero
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read block type using HTREE_BTYPE_L and set BTYPE_L
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@ -1862,7 +1862,7 @@ Internet-Draft Brotli October 2015
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read block count using HTREE_BLEN_D and set BLEN_D
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decrement BLEN_D
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compute context ID, CIDD from CLEN
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read distance code with HTREED[CMAPD[4 * BTYPE_D + CIDD]]
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read distance code using HTREED[CMAPD[4 * BTYPE_D + CIDD]]
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compute distance by distance short code substitution
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move backwards distance bytes in the uncompressed data and
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copy CLEN bytes from this position to the uncompressed
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@ -1942,7 +1942,7 @@ Internet-Draft Brotli October 2015
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available in the brotli open-source project:
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https://github.com/google/brotli
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15. Acknowledgements
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15. Acknowledgments
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The authors would like to thank Mark Adler for providing helpful
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review comments, validating the specification by writing an
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