author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 17:02:56 +0300 | |
branch | RCL_3 |
changeset 32 | 889504eac4fb |
permissions | -rw-r--r-- |
32
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/* |
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* Copyright (c) 2000 - 2001 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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|
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/* |
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This module provides a text (character) stream, pointers into the stream |
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and operations on segments of the stream as though they were strings. |
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The goal is to isolate the client from stream buffers, cross buffer |
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issues and some character set encoding concerns. |
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|
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This particular version is for input from a single buffer. |
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*/ |
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|
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#include "cxml_internal.h" |
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#include <xml/cxml/nw_string_char.h> |
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#include <xml/cxml/nw_xmlp_xmlreader.h> |
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|
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static |
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NW_Status_t |
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NW_XML_Reader_ReadAsciiChar(NW_Uint32 c, NW_Uint32* pReturnChar) |
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{ |
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/* This looks a bit weird but the idea is to force the conversion |
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of the ASCII character through the same function that is used |
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to read a character from the text. This will impose the same conversion |
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limitations and the same result encoding. */ |
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NW_Int32 byteCount; |
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NW_Uint8 buf[2]; |
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NW_Ucs2 c_ucs2; |
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buf[0] = (NW_Uint8)(c & 0xff); |
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buf[1] = 0; |
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/* should only use this function for ASCII */ |
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if (c > 127) { |
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return NW_STAT_FAILURE; |
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} |
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/* call it UTF-8 because ASCII doesn't work with NW_String_readChar() |
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at the moment */ |
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byteCount = NW_String_readChar((NW_Byte*)buf, &c_ucs2, HTTP_utf_8); |
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if (byteCount != 1) { |
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return NW_STAT_FAILURE; |
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} |
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*pReturnChar = c_ucs2; |
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return NW_STAT_SUCCESS; |
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} |
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|
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/* assumes this is just a handoff of the buffer (i.e., won't make a copy) */ |
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EXPORT_C NW_Status_t |
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NW_XML_Reader_InitFromBuffer(NW_XML_Reader_t* pT, NW_Uint32 length, unsigned char* pBuf) |
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{ |
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pT->encoding = 0; |
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pT->endianness = NW_NATIVE_ENDIAN; |
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pT->index = 0; |
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pT->charIndex = 0; |
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pT->lineColumn.crCount = 0; |
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pT->lineColumn.lfCount = 0; |
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pT->lineColumn.charsSinceLastCR = 0; |
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pT->lineColumn.charsSinceLastLF = 0; |
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pT->end = 0; |
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pT->length = length; |
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pT->pBuf = pBuf; |
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return NW_STAT_SUCCESS; |
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} |
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|
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EXPORT_C NW_Status_t |
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NW_XML_Reader_DataAddressFromBuffer(NW_XML_Reader_t* pT, |
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NW_Uint32 start, NW_Uint32* length, |
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unsigned char** ppData) |
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{ |
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NW_ASSERT(start < pT->length); |
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NW_ASSERT(*length <= pT->length); |
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NW_ASSERT((start + *length) <= pT->length); |
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*ppData = NULL; |
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if (start < pT->length) { |
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*ppData = pT->pBuf + start; |
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*length = (((start + *length) <= pT->length) ? |
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*length : (pT->length - start)); |
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return NW_STAT_SUCCESS; |
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} |
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return NW_STAT_FAILURE; |
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} |
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|
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/* peekOrAdvance: first arg "advance": peek = 0, advance = 1 */ |
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static |
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NW_Status_t |
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NW_XML_Reader_PeekOrAdvanceOffset(NW_Bool advance, NW_XML_Reader_t* pT, |
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NW_Uint32 offsetCharCount, NW_Uint32* pC) |
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{ |
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NW_Ucs2 c_ucs2; |
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NW_Uint32 i; |
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NW_Uint32 charCount = 0; |
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NW_Int32 byteCount = 0; |
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105 |
NW_Uint32 crCount = 0; |
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|
106 |
NW_Uint32 lfCount = 0; |
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|
107 |
NW_Uint32 charsPastCR = 0; |
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108 |
NW_Uint32 charsPastLF = 0; |
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109 |
NW_Bool resetPastCR = 0; |
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110 |
NW_Bool resetPastLF = 0; |
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111 |
|
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112 |
NW_ASSERT(!(advance && !offsetCharCount)); |
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113 |
|
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|
114 |
if (pT->end) { |
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115 |
return NW_STAT_FAILURE; |
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116 |
} |
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117 |
for (i = pT->index; i < pT->length; i += (NW_Uint32)byteCount) { |
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118 |
NW_ASSERT(charCount <= offsetCharCount); |
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119 |
|
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120 |
/* It is assumed that this func returns UNICODE code points. */ |
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121 |
byteCount = NW_String_readChar((NW_Byte*)&(pT->pBuf[i]), |
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122 |
&c_ucs2, pT->encoding); |
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123 |
*pC = c_ucs2; |
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124 |
if (byteCount == -1) { |
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125 |
return NW_STAT_FAILURE; |
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126 |
} |
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127 |
if (charCount == offsetCharCount) { |
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128 |
/* This catches NW_String_readChar() reading past buffer end |
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129 |
and can be removed when the readChar function does proper |
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130 |
error checking. */ |
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131 |
if ((i + (NW_Uint32)byteCount) > pT->length) { |
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132 |
return NW_STAT_FAILURE; |
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133 |
} |
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134 |
break; |
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135 |
} |
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136 |
charCount++; |
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137 |
charsPastCR++; |
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138 |
charsPastLF++; |
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139 |
if (c_ucs2 == 0xd /* CR */) { |
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140 |
crCount++; |
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141 |
resetPastCR = 1; |
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142 |
charsPastCR = 0; |
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143 |
} else if (c_ucs2 == 0xa /* LF */) { |
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144 |
lfCount++; |
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145 |
resetPastLF = 1; |
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146 |
charsPastLF = 0; |
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147 |
} |
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148 |
} |
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149 |
if (i >= pT->length) { |
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150 |
pT->end = 1; |
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151 |
} |
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152 |
/* This catches NW_String_readChar() reading past buffer end and can be |
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153 |
removed when the readChar function does proper error checking. */ |
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154 |
if (i > pT->length) { |
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155 |
return NW_STAT_FAILURE; |
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156 |
} |
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157 |
if (advance) { |
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158 |
pT->index = i; |
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|
159 |
pT->charIndex += charCount; |
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160 |
pT->lineColumn.crCount += crCount; |
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161 |
pT->lineColumn.lfCount += lfCount; |
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|
162 |
if (resetPastCR) { |
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|
163 |
pT->lineColumn.charsSinceLastCR = charsPastCR; |
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|
164 |
} else { |
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|
165 |
pT->lineColumn.charsSinceLastCR += charsPastCR; |
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|
166 |
} |
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|
167 |
if (resetPastLF) { |
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|
168 |
pT->lineColumn.charsSinceLastLF = charsPastLF; |
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|
169 |
} else { |
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|
170 |
pT->lineColumn.charsSinceLastLF += charsPastLF; |
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|
171 |
} |
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|
172 |
} |
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|
173 |
return NW_STAT_SUCCESS; |
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|
174 |
} |
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|
175 |
|
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|
176 |
EXPORT_C NW_Status_t |
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177 |
NW_XML_Reader_PeekOffset(NW_XML_Reader_t* pT, NW_Uint32 nChars, NW_Uint32* pC) |
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178 |
{ |
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179 |
return NW_XML_Reader_PeekOrAdvanceOffset(0, pT, nChars, pC); |
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|
180 |
} |
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|
181 |
|
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182 |
EXPORT_C NW_Status_t |
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183 |
NW_XML_Reader_AdvanceOffset(NW_XML_Reader_t* pT, NW_Uint32 nChars) |
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184 |
{ |
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185 |
NW_Uint32 c; |
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186 |
return NW_XML_Reader_PeekOrAdvanceOffset(1, pT, nChars, &c); |
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187 |
} |
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|
188 |
|
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189 |
EXPORT_C |
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190 |
void NW_XML_Reader_GetPosition(NW_XML_Reader_t* pT, NW_Uint32* pByteIndex, |
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|
191 |
NW_Uint32* pCharIndex, |
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|
192 |
NW_XML_Reader_LineColumn_t* pLineColumn) |
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193 |
{ |
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|
194 |
*pByteIndex = pT->index; |
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195 |
*pCharIndex = pT->charIndex; |
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196 |
pLineColumn->crCount = pT->lineColumn.crCount; |
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|
197 |
pLineColumn->lfCount = pT->lineColumn.lfCount; |
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|
198 |
pLineColumn->charsSinceLastCR = pT->lineColumn.charsSinceLastCR; |
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|
199 |
pLineColumn->charsSinceLastLF = pT->lineColumn.charsSinceLastLF; |
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|
200 |
} |
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|
201 |
|
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|
202 |
/* Note: Setting the position (similar to seeking in a file) is in general |
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203 |
not possible without reading the characters (usually reading forward) because |
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|
204 |
character encoding may use a variable numbers of bytes per character. This is |
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|
205 |
here so that if you have defined a valid interval, then you can reposition to |
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|
206 |
the beginning of the interval. Setting to the position to a bad value will |
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|
207 |
not always be caught immediately. Don't forget to also save and set line |
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|
208 |
and column with position. */ |
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|
209 |
EXPORT_C void |
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210 |
NW_XML_Reader_SetPosition(NW_XML_Reader_t* pT, NW_Uint32 byteIndex, |
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211 |
NW_Uint32 charIndex, |
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212 |
const NW_XML_Reader_LineColumn_t* pLineColumn) |
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213 |
{ |
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|
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pT->index = byteIndex; |
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|
215 |
pT->charIndex = charIndex; |
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|
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pT->lineColumn.crCount = pLineColumn->crCount; |
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|
217 |
pT->lineColumn.lfCount = pLineColumn->lfCount; |
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|
218 |
pT->lineColumn.charsSinceLastCR = pLineColumn->charsSinceLastCR; |
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|
219 |
pT->lineColumn.charsSinceLastLF = pLineColumn->charsSinceLastLF; |
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220 |
} |
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|
221 |
|
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222 |
/* |
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223 |
Reader Interval Functions |
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224 |
*/ |
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|
225 |
|
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|
226 |
EXPORT_C void |
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|
227 |
NW_XML_Reader_Interval_Start(NW_XML_Reader_Interval_t* pI, NW_XML_Reader_t* pT) |
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228 |
{ |
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229 |
/* set both start and stop for safety in later use */ |
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|
230 |
pI->start = pI->stop = pT->index; |
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|
231 |
pI->charStart = pI->charStop = pT->charIndex; |
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|
232 |
} |
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|
233 |
|
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|
234 |
EXPORT_C void |
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|
235 |
NW_XML_Reader_Interval_Stop(NW_XML_Reader_Interval_t* pI, NW_XML_Reader_t* pT) |
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|
236 |
{ |
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|
237 |
pI->stop = pT->index; |
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|
238 |
pI->charStop = pT->charIndex; |
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|
239 |
} |
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|
240 |
|
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|
241 |
/* BEGIN GENERIC Reader CHARACTER AND STRING FUNCTIONS */ |
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|
242 |
|
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|
243 |
/* pMatch is 1 if ASCII character c matches Reader char in its encoding */ |
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|
244 |
EXPORT_C NW_Status_t |
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|
245 |
NW_XML_Reader_AsciiCharMatch(NW_XML_Reader_t* pT, NW_Uint32 asciiC, NW_Uint32* pMatch) |
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|
246 |
{ |
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|
247 |
NW_Uint32 c_text, c_ascii; |
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|
248 |
NW_Status_t s = NW_XML_Reader_Peek(pT, &c_text); |
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|
249 |
*pMatch = 0; |
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|
250 |
if (NW_STAT_IS_SUCCESS(s)) { |
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|
251 |
s = NW_XML_Reader_ReadAsciiChar(asciiC, &c_ascii); |
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|
252 |
if (NW_STAT_IS_SUCCESS(s)) { |
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|
253 |
*pMatch = (c_text == c_ascii); |
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|
254 |
} |
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Revision: 201014
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|
255 |
} |
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|
256 |
return s; |
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|
257 |
} |
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|
258 |
|
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|
259 |
/* pMatch is 1 if ASCII string matches Reader sequence in its encoding */ |
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diff
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|
260 |
EXPORT_C NW_Status_t |
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Revision: 201014
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|
261 |
NW_XML_Reader_AsciiStringMatch(NW_XML_Reader_t* pT, NW_Uint32 length, const NW_Uint8* pString, |
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|
262 |
NW_Uint32* pMatch) |
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Revision: 201014
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|
263 |
{ |
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Revision: 201014
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|
264 |
NW_Uint32 c_text, c_ascii; |
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|
265 |
NW_Uint32 i; |
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Revision: 201014
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|
266 |
NW_Status_t s = NW_STAT_SUCCESS; |
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Revision: 201014
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|
267 |
*pMatch = 0; |
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|
268 |
NW_ASSERT(length); |
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|
269 |
for (i = 0; i < length; i++) { |
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Revision: 201014
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diff
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|
270 |
s = NW_XML_Reader_PeekOffset(pT, i, &c_text); |
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Revision: 201014
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diff
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|
271 |
if (NW_STAT_IS_FAILURE(s)) { |
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Revision: 201014
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diff
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|
272 |
break; |
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Revision: 201014
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parents:
diff
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|
273 |
} |
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Revision: 201014
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parents:
diff
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|
274 |
s = NW_XML_Reader_ReadAsciiChar(pString[i], &c_ascii); |
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Revision: 201014
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parents:
diff
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|
275 |
if (NW_STAT_IS_FAILURE(s)) { |
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Revision: 201014
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diff
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|
276 |
break; |
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Revision: 201014
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parents:
diff
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|
277 |
} |
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Revision: 201014
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|
278 |
if (c_text != c_ascii) { |
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Revision: 201014
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diff
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|
279 |
break; |
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Revision: 201014
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parents:
diff
changeset
|
280 |
} |
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Revision: 201014
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parents:
diff
changeset
|
281 |
} |
889504eac4fb
Revision: 201014
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parents:
diff
changeset
|
282 |
if (i == length) { |
889504eac4fb
Revision: 201014
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parents:
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|
283 |
*pMatch = 1; |
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Revision: 201014
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diff
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|
284 |
} |
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Revision: 201014
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|
285 |
return s; |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
286 |
} |
889504eac4fb
Revision: 201014
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parents:
diff
changeset
|
287 |
|
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Revision: 201014
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parents:
diff
changeset
|
288 |
/* Note: For XML, whitespace is only ASCII 0x20 (space), |
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Revision: 201014
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parents:
diff
changeset
|
289 |
0x09 (tab), 0x0d (CR), 0x0a (LF). The base test used here, |
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Revision: 201014
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parents:
diff
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|
290 |
CXML_Str_Isspace(), includes two other forms of whitespace. */ |
889504eac4fb
Revision: 201014
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parents:
diff
changeset
|
291 |
EXPORT_C NW_Status_t |
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Revision: 201014
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parents:
diff
changeset
|
292 |
NW_XML_Reader_SkipSpace(NW_XML_Reader_t* pT) |
889504eac4fb
Revision: 201014
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parents:
diff
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|
293 |
{ |
889504eac4fb
Revision: 201014
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parents:
diff
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|
294 |
NW_Uint32 c; |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
295 |
NW_Status_t s = NW_STAT_SUCCESS; |
889504eac4fb
Revision: 201014
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parents:
diff
changeset
|
296 |
for (;;) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
297 |
s = NW_XML_Reader_Peek(pT, &c); |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
298 |
if (NW_STAT_IS_FAILURE(s)) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
299 |
break; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
300 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
301 |
if (c > 0xffff) { /* validate casting */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
302 |
break; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
303 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
304 |
if (!CXML_Str_Isspace((NW_Ucs2)(c & 0xffff))) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
305 |
break; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
306 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
307 |
s = NW_XML_Reader_Advance(pT); |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
308 |
if (NW_STAT_IS_FAILURE(s)) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
309 |
break; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
310 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
311 |
if (pT->end){ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
312 |
/* At the end so break */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
313 |
break; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
314 |
} |
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parents:
diff
changeset
|
315 |
} |
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Revision: 201014
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parents:
diff
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|
316 |
return s; |
889504eac4fb
Revision: 201014
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parents:
diff
changeset
|
317 |
} |
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Revision: 201014
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parents:
diff
changeset
|
318 |
|
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
319 |
/* Note: For XML, whitespace is only ASCII 0x20 (space), |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
320 |
0x09 (tab), 0x0d (CR), 0x0a (LF). The base test used here, |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
321 |
CXML_Str_Isspace(), includes two other forms of whitespace. */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
322 |
EXPORT_C NW_Status_t |
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Revision: 201014
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parents:
diff
changeset
|
323 |
NW_XML_Reader_IsSpace(NW_XML_Reader_t* pT, NW_Uint32* pMatch) |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
324 |
{ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
325 |
NW_Uint32 c; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
326 |
NW_Status_t s; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
327 |
|
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
328 |
*pMatch = 0; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
329 |
s = NW_XML_Reader_Peek(pT, &c); |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
330 |
if (NW_STAT_IS_FAILURE(s)) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
331 |
return s; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
332 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
333 |
if (c > 0xffff) { /* validate casting */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
334 |
return NW_STAT_FAILURE; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
335 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
336 |
if (CXML_Str_Isspace((NW_Ucs2)(c & 0xffff))) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
337 |
*pMatch = 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
338 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
339 |
return NW_STAT_SUCCESS; |
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Revision: 201014
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parents:
diff
changeset
|
340 |
} |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
341 |
|
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Revision: 201014
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parents:
diff
changeset
|
342 |
EXPORT_C NW_Status_t |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
343 |
NW_XML_Reader_IsLetter(NW_XML_Reader_t* pT, NW_Uint32* pMatch) |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
344 |
{ |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
345 |
NW_Uint32 c; |
889504eac4fb
Revision: 201014
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parents:
diff
changeset
|
346 |
NW_Status_t s; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
347 |
|
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
348 |
*pMatch = 0; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
349 |
s = NW_XML_Reader_Peek(pT, &c); |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
350 |
if (NW_STAT_IS_FAILURE(s)) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
351 |
return s; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
352 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
353 |
/* This is an approximation to what XML charaters are "letter". |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
354 |
Everything above the 8-bit range is considered to be a "letter".*/ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
355 |
if (c >= 0x41 && c <= 0x5a) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
356 |
*pMatch = 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
357 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
358 |
else if (c >= 0x61 && c <= 0x7a) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
359 |
*pMatch = 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
361 |
else if (c >= 0xc0 && c <= 0xd6) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
362 |
*pMatch = 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
363 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
364 |
else if (c >= 0xd8 && c <= 0xf6) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
365 |
*pMatch = 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
367 |
else if (c >= 0xf8) {/* letters become anything above 0xf8 */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
*pMatch = 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
369 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
return NW_STAT_SUCCESS; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
|
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
/* Note: For XML, digits include not only the ASCII digits but |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
other language forms of digits. The base test used here, |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
CXML_Str_Isdigit() only tests for ASCII digits. */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
376 |
EXPORT_C NW_Status_t |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
NW_XML_Reader_IsDigit(NW_XML_Reader_t* pT, NW_Uint32* pMatch) |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
{ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
NW_Uint32 c; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
NW_Status_t s; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
|
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
*pMatch = 0; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
s = NW_XML_Reader_Peek(pT, &c); |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
if (NW_STAT_IS_FAILURE(s)) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
return s; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
if (c > 0xffff) {/* validate casting */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
return NW_STAT_SUCCESS; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
if (CXML_Str_Isdigit((NW_Ucs2)(c & 0xffff))) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
*pMatch = 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
return NW_STAT_SUCCESS; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
} |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
|
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
/* Returns an estimate of the current line and column position in the text. |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
It is an estimate because it has to guess at what the intended line ending |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
sequence is using a count of CR and LF characters. Line and Column indices |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
are 1-based not 0-based. */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
EXPORT_C void |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
NW_XML_Reader_GetLineColumn(NW_XML_Reader_t* pT, NW_Uint32* pLine, |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
NW_Uint32* pColumn) |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
{ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
NW_Uint32 crCount, lfCount, charsSinceCR, charsSinceLF; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
crCount = pT->lineColumn.crCount; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
lfCount = pT->lineColumn.lfCount; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
charsSinceCR = pT->lineColumn.charsSinceLastCR; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
charsSinceLF = pT->lineColumn.charsSinceLastLF; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
if (crCount == lfCount) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
/* assume CR, LF, DOS style */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
/* use a bias in favor of CR followed by LF |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
which will give the correct column for DOS */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
*pLine = lfCount + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
*pColumn = charsSinceLF + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
} else if (lfCount == 0) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
/* assume CR only, Unix style */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
*pLine = crCount + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
*pColumn = charsSinceCR + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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419 |
} else if (crCount == 0) { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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/* assume LF only, Mac style */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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*pLine = lfCount + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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*pColumn = charsSinceLF + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} else { |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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424 |
/* an unclear situation so use |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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thresholds on the ratio to guess */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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NW_Uint32 ratio; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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ratio = ((crCount * 100) / lfCount); |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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if (ratio > 300) {/* more than 3 to 1 crCount to lfCount */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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/* assume CR only, Unix style */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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*pLine = crCount + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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*pColumn = charsSinceCR + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} else if (ratio < 33) {/* less than 1 to 3 crCount to lfCount */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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/* assume LF only, Mac style */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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434 |
*pLine = lfCount + 1; |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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*pColumn = charsSinceLF + 1; |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} else { |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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/* assume CR, LF, DOS style */ |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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/* use a bias in favor of CR, LF sequence (DOS style) |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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which will give the correct column */ |
889504eac4fb
Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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*pLine = lfCount + 1; |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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*pColumn = charsSinceLF + 1; |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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442 |
} |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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443 |
} |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} |
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Revision: 201014
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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445 |