CharToUTF8() static private method

static private CharToUTF8 ( char &pSrc, char pSrcEnd, byte &pDst ) : void
pSrc char
pSrcEnd char
pDst byte
return void
示例#1
0
        private unsafe void WriteUriAttributeText(char *pSrc, char *pSrcEnd)
        {
            if (this.endsWithAmpersand)
            {
                if ((((long)((pSrcEnd - pSrc) / 2)) > 0L) && (pSrc[0] != '{'))
                {
                    this.OutputRestAmps();
                }
                this.endsWithAmpersand = false;
            }

            fixed(byte *numRef = base.bufBytes)
            {
                byte *numPtr2;
                byte *pDst = numRef + base.bufPos;
                char  ch   = '\0';

Label_0050:
                numPtr2 = pDst + ((byte *)((long)((pSrcEnd - pSrc) / 2)));
                if (numPtr2 > (numRef + base.bufLen))
                {
                    numPtr2 = numRef + base.bufLen;
                }
                while (((pDst < numPtr2) && ((this.xmlCharType.charProperties[ch = pSrc[0]] & 0x80) != 0)) && (ch < '\x0080'))
                {
                    pDst++;
                    pDst[0] = (byte)ch;
                    pSrc++;
                }
                if (pSrc >= pSrcEnd)
                {
                    goto Label_021D;
                }
                if (pDst >= numPtr2)
                {
                    base.bufPos = (int)((long)((pDst - numRef) / 1));
                    this.FlushBuffer();
                    pDst = numRef + 1;
                    goto Label_0050;
                }
                switch (ch)
                {
                case '\t':
                case '\'':
                case '<':
                case '>':
                    pDst++;
                    pDst[0] = (byte)ch;
                    goto Label_0212;

                case '\n':
                    pDst = XmlUtf8RawTextWriter.LineFeedEntity(pDst);
                    goto Label_0212;

                case '\r':
                    pDst = XmlUtf8RawTextWriter.CarriageReturnEntity(pDst);
                    goto Label_0212;

                case '"':
                    pDst = XmlUtf8RawTextWriter.QuoteEntity(pDst);
                    goto Label_0212;

                case '&':
                    if ((pSrc + 1) != pSrcEnd)
                    {
                        break;
                    }
                    this.endsWithAmpersand = true;
                    goto Label_014E;

                default:
                    fixed(byte *numRef2 = this.uriEscapingBuffer)
                    {
                        byte *numPtr3 = numRef2;
                        byte *numPtr4 = numPtr3;

                        XmlUtf8RawTextWriter.CharToUTF8(ref pSrc, pSrcEnd, ref numPtr4);
                        while (numPtr3 < numPtr4)
                        {
                            pDst++;
                            pDst[0] = 0x25;
                            pDst++;
                            pDst[0] = (byte)"0123456789ABCDEF"[numPtr3[0] >> 4];
                            pDst++;
                            pDst[0] = (byte)"0123456789ABCDEF"[numPtr3[0] & 15];
                            numPtr3++;
                        }
                    }

                    goto Label_0050;
                }
                if (pSrc[1] != '{')
                {
                    pDst = XmlUtf8RawTextWriter.AmpEntity(pDst);
                    goto Label_0212;
                }
Label_014E:
                pDst++;
                pDst[0] = (byte)ch;
Label_0212:
                pSrc++;
                goto Label_0050;
Label_021D:
                base.bufPos = (int)((long)((pDst - numRef) / 1));
            }
        }
示例#2
0
        private unsafe void WriteUriAttributeText(char *pSrc, char *pSrcEnd)
        {
            if (_endsWithAmpersand)
            {
                if (pSrcEnd - pSrc > 0 && pSrc[0] != '{')
                {
                    OutputRestAmps();
                }
                _endsWithAmpersand = false;
            }

            fixed(byte *pDstBegin = bufBytes)
            {
                byte *pDst = pDstBegin + bufPos;

                char ch = (char)0;

                for (;;)
                {
                    byte *pDstEnd = pDst + (pSrcEnd - pSrc);
                    if (pDstEnd > pDstBegin + bufLen)
                    {
                        pDstEnd = pDstBegin + bufLen;
                    }

                    while (pDst < pDstEnd && (xmlCharType.IsAttributeValueChar((char)(ch = *pSrc)) && ch < 0x80))
                    {
                        *pDst++ = (byte)ch;
                        pSrc++;
                    }
                    Debug.Assert(pSrc <= pSrcEnd);

                    // end of value
                    if (pSrc >= pSrcEnd)
                    {
                        break;
                    }

                    // end of buffer
                    if (pDst >= pDstEnd)
                    {
                        bufPos = (int)(pDst - pDstBegin);
                        FlushBuffer();
                        pDst = pDstBegin + 1;
                        continue;
                    }

                    // some character needs to be escaped
                    switch (ch)
                    {
                    case '&':
                        if (pSrc + 1 == pSrcEnd)
                        {
                            _endsWithAmpersand = true;
                        }
                        else if (pSrc[1] != '{')
                        {
                            pDst = AmpEntity(pDst);
                            break;
                        }
                        *pDst++ = (byte)ch;
                        break;

                    case '"':
                        pDst = QuoteEntity(pDst);
                        break;

                    case '<':
                    case '>':
                    case '\'':
                    case (char)0x9:
                        *pDst++ = (byte)ch;
                        break;

                    case (char)0xD:
                        // do not normalize new lines in attributes - just escape them
                        pDst = CarriageReturnEntity(pDst);
                        break;

                    case (char)0xA:
                        // do not normalize new lines in attributes - just escape them
                        pDst = LineFeedEntity(pDst);
                        break;

                    default:
                        const string hexDigits = "0123456789ABCDEF";
                        Debug.Assert(_uriEscapingBuffer?.Length > 0);
                        fixed(byte *pUriEscapingBuffer = _uriEscapingBuffer)
                        {
                            byte *pByte = pUriEscapingBuffer;
                            byte *pEnd  = pByte;

                            XmlUtf8RawTextWriter.CharToUTF8(ref pSrc, pSrcEnd, ref pEnd);

                            while (pByte < pEnd)
                            {
                                *pDst++ = (byte)'%';
                                *pDst++ = (byte)hexDigits[*pByte >> 4];
                                *pDst++ = (byte)hexDigits[*pByte & 0xF];
                                pByte++;
                            }
                        }

                        continue;
                    }
                    pSrc++;
                }
                bufPos = (int)(pDst - pDstBegin);
            }
        }
示例#3
0
        private unsafe void WriteUriAttributeText(char *pSrc, char *pSrcEnd)
        {
            if (this.endsWithAmpersand)
            {
                if ((((long)((pSrcEnd - pSrc) / 2)) > 0L) && (pSrc[0] != '{'))
                {
                    this.OutputRestAmps();
                }
                this.endsWithAmpersand = false;
            }

            fixed(char *chRef = base.bufChars)
            {
                char *chPtr2;
                char *pDst = chRef + base.bufPos;
                char  ch   = '\0';

Label_0053:
                chPtr2 = pDst + ((char *)(((long)((pSrcEnd - pSrc) / 2)) * 2L));
                if (chPtr2 > (chRef + base.bufLen))
                {
                    chPtr2 = chRef + base.bufLen;
                }
                while (((pDst < chPtr2) && ((this.xmlCharType.charProperties[ch = pSrc[0]] & 0x80) != 0)) && (ch < '\x0080'))
                {
                    pDst++;
                    pDst[0] = ch;
                    pSrc++;
                }
                if (pSrc >= pSrcEnd)
                {
                    goto Label_0227;
                }
                if (pDst >= chPtr2)
                {
                    base.bufPos = (int)((long)((pDst - chRef) / 2));
                    this.FlushBuffer();
                    pDst = chRef + 1;
                    goto Label_0053;
                }
                switch (ch)
                {
                case '\t':
                case '\'':
                case '<':
                case '>':
                    pDst++;
                    pDst[0] = ch;
                    goto Label_021C;

                case '\n':
                    pDst = XmlEncodedRawTextWriter.LineFeedEntity(pDst);
                    goto Label_021C;

                case '\r':
                    pDst = XmlEncodedRawTextWriter.CarriageReturnEntity(pDst);
                    goto Label_021C;

                case '"':
                    pDst = XmlEncodedRawTextWriter.QuoteEntity(pDst);
                    goto Label_021C;

                case '&':
                    if ((pSrc + 1) != pSrcEnd)
                    {
                        break;
                    }
                    this.endsWithAmpersand = true;
                    goto Label_015C;

                default:
                    fixed(byte *numRef = this.uriEscapingBuffer)
                    {
                        byte *numPtr  = numRef;
                        byte *numPtr2 = numPtr;

                        XmlUtf8RawTextWriter.CharToUTF8(ref pSrc, pSrcEnd, ref numPtr2);
                        while (numPtr < numPtr2)
                        {
                            pDst++;
                            pDst[0] = '%';
                            pDst++;
                            pDst[0] = "0123456789ABCDEF"[numPtr[0] >> 4];
                            pDst++;
                            pDst[0] = "0123456789ABCDEF"[numPtr[0] & 15];
                            numPtr++;
                        }
                    }

                    goto Label_0053;
                }
                if (pSrc[1] != '{')
                {
                    pDst = XmlEncodedRawTextWriter.AmpEntity(pDst);
                    goto Label_021C;
                }
Label_015C:
                pDst++;
                pDst[0] = ch;
Label_021C:
                pSrc++;
                goto Label_0053;
Label_0227:
                base.bufPos = (int)((long)((pDst - chRef) / 2));
            }
        }