| // Copyright 2003-2004 The Apache Software Foundation. |
| // (c) Copyright IBM Corp. 2004, 2005 All Rights Reserved |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // !!! This include file must be first thing in file !!! |
| #include "../../../platforms/PlatformAutoSense.hpp" |
| |
| #include "WhiteSpace.hpp" |
| |
| AXIS_CPP_NAMESPACE_START |
| |
| WhiteSpace::WhiteSpace():m_WhiteSpace(PRESERVE), m_Buf(NULL) |
| { |
| m_isSet = true; |
| } |
| |
| WhiteSpace::~WhiteSpace() |
| { |
| delete [] m_Buf; |
| } |
| |
| WhiteSpace::WhiteSpace(whiteSpaceValue whiteSpace):m_Buf(NULL) |
| { |
| m_isSet = true; |
| m_WhiteSpace = whiteSpace; |
| } |
| |
| const AxisChar* WhiteSpace::processWhiteSpace(const AxisChar* valueToProcess) |
| { |
| AxisString valueAsString = valueToProcess; |
| AxisChar* returnValue = NULL; |
| |
| switch (m_WhiteSpace) |
| { |
| case PRESERVE: |
| return valueToProcess; |
| case REPLACE: |
| { |
| returnValue = (AxisChar*) replaceWhiteSpace(valueAsString).c_str(); |
| } |
| break; |
| case COLLAPSE: |
| { |
| returnValue = (AxisChar*) collapseWhiteSpace(valueAsString).c_str(); |
| } |
| break; |
| } |
| |
| if (m_Buf) |
| { |
| delete [] m_Buf; |
| m_Buf = NULL; |
| } |
| m_Buf = new char[strlen (returnValue) + 1]; |
| strcpy (m_Buf, returnValue); |
| return m_Buf; |
| } |
| |
| /** |
| * Replaces all occurances of tab, line feed and carriage return with space |
| * |
| * @param value The string to have white space characters replaced. |
| * @return AxisString The string with all white space characters replaced. |
| */ |
| const AxisString& WhiteSpace::replaceWhiteSpace(AxisString& value) |
| { |
| m_strReturnVal = ""; |
| |
| if (value.empty ()) |
| { |
| return value; |
| } |
| |
| /* Find white space characters and returns the first any of chars find |
| * position |
| */ |
| unsigned long nPos = value.find_first_of (WHITE_SPACE_CHARS); |
| |
| /* Check for position validity */ |
| if (AxisString::npos == nPos) |
| { |
| return value; |
| } |
| |
| unsigned long nOldIdx = 0; // Counter value |
| while (AxisString::npos != nPos) |
| { // Get pointered character |
| m_strReturnVal.append (value.substr (nOldIdx, nPos - nOldIdx)); |
| m_strReturnVal.append (" "); |
| |
| nOldIdx = ++nPos; // Get old position |
| |
| /* |
| * Find the next white space characters from previous found |
| * position, |
| */ |
| nPos = value.find_first_of (WHITE_SPACE_CHARS, nPos); |
| } |
| |
| unsigned long nDataLen = value.length (); // Get the length of the field value |
| unsigned long nLen = nDataLen - nOldIdx; // Get remaining number of characters |
| if (nLen > 0) |
| { |
| /* |
| * Append the remaining data |
| */ |
| m_strReturnVal += value.substr (nOldIdx, nLen); |
| } |
| |
| return m_strReturnVal; |
| |
| } |
| |
| |
| /** |
| * Collapses all white space in a string. |
| * All occurances of tab, line feed and carriage return are replaced with |
| * space, after which all sequences of spaces are collapsed to a single space. |
| * |
| * @param value The string to have all white space collapsed |
| * @return AxisString The string with all white space collapsed. |
| */ |
| const AxisString& WhiteSpace::collapseWhiteSpace(AxisString& value) |
| { |
| if (value.empty ()) |
| { |
| return value; |
| } |
| |
| AxisString replacedValue = replaceWhiteSpace(value); |
| |
| /* |
| * Strip leading and trailing space |
| */ |
| AxisString leadingStripped = stripLeadingWhiteSpace(replacedValue); |
| replacedValue = stripTrailingWhiteSpace(leadingStripped); |
| |
| // Initialize return value to empty string |
| m_strReturnVal = ""; |
| /* |
| * Find space character and returns the first any of chars find |
| * position |
| */ |
| unsigned long nPos = replacedValue.find_first_of (' '); |
| |
| /* Check for position validity */ |
| if (AxisString::npos == nPos) |
| { |
| m_strReturnVal.assign (replacedValue); |
| return m_strReturnVal; |
| } |
| |
| unsigned long nOldIdx = 0; // Counter value |
| while (AxisString::npos != nPos) |
| { |
| m_strReturnVal.append (replacedValue.substr (nOldIdx, nPos - nOldIdx)); |
| |
| /** |
| * Only copy space character across if it's NOT followed by |
| * another space character |
| */ |
| if ( replacedValue.at(nPos+1) != ' ') |
| { |
| m_strReturnVal.append (" "); |
| } |
| |
| nOldIdx = ++nPos; // Get old position |
| |
| /* |
| * Find the next entity reference characters from previous found |
| * position, |
| */ |
| nPos = replacedValue.find_first_of (' ', nPos); |
| } |
| |
| unsigned long nDataLen = replacedValue.length (); // Get the length of the field value |
| unsigned long nLen = nDataLen - nOldIdx; // Get remaining number of characters |
| if (nLen > 0) |
| { |
| /* |
| * Append the remaining data |
| */ |
| m_strReturnVal += replacedValue.substr (nOldIdx, nLen); |
| } |
| |
| return m_strReturnVal; |
| } |
| |
| const AxisString& WhiteSpace::stripLeadingWhiteSpace(AxisString& value) |
| { |
| while (value.size() > 0) |
| { |
| if ( isspace (value.at(0))) |
| { |
| value.erase(0, 1); |
| } |
| else |
| { |
| break; |
| } |
| } |
| |
| return value; |
| } |
| |
| const AxisString& WhiteSpace::stripTrailingWhiteSpace(AxisString& value) |
| { |
| while (value.size() > 0) |
| { |
| if ( isspace (value.at( value.size() - 1))) |
| { |
| value.erase(value.size() - 1, 1); |
| } |
| else |
| { |
| break; |
| } |
| } |
| return value; |
| } |
| |
| AXIS_CPP_NAMESPACE_END |