55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
/* $XConsortium: TranslateInputCodingSystem.C /main/1 1996/07/29 17:06:28 cde-hp $ */
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// Copyright (c) 1995 James Clark
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// See the file COPYING for copying permission.
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#include "splib.h"
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#include "TranslateInputCodingSystem.h"
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#ifdef SP_NAMESPACE
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namespace SP_NAMESPACE {
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#endif
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class TranslateDecoder : public Decoder {
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public:
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TranslateDecoder(const Char *table);
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size_t decode(Char *to, const char *from, size_t fromLen,
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const char **rest);
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Boolean convertOffset(unsigned long &offset) const;
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private:
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const Char *table_;
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};
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TranslateInputCodingSystem::TranslateInputCodingSystem(const Char *table)
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: table_(table)
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{
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}
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Decoder *TranslateInputCodingSystem::makeDecoder() const
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{
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return new TranslateDecoder(table_);
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}
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TranslateDecoder::TranslateDecoder(const Char *table)
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: table_(table)
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{
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}
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size_t TranslateDecoder::decode(Char *to, const char *from, size_t fromLen,
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const char **rest)
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{
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for (size_t n = fromLen; n > 0; n--)
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*to++ = table_[(unsigned char)*from++]; // zero extend
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*rest = from;
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return fromLen;
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}
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Boolean TranslateDecoder::convertOffset(unsigned long &) const
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{
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return true;
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}
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#ifdef SP_NAMESPACE
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}
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#endif
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