// FILE HEADER
#include <dali-toolkit/internal/text/markup-processor.h>
+// EXTERNAL INCLUDES
+#include <climits> // for ULONG_MAX
+#include <dali/integration-api/debug.h>
+
// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/character-set-conversion.h>
#include <dali-toolkit/internal/text/markup-processor-color.h>
#include <dali-toolkit/internal/text/markup-processor-font.h>
#include <dali-toolkit/internal/text/markup-processor-helper-functions.h>
+#include <dali-toolkit/internal/text/xhtml-entities.h>
+
+
namespace Dali
{
const char QUOTATION_MARK = '\'';
const char SLASH = '/';
const char BACK_SLASH = '\\';
+const char AMPERSAND = '&';
+const char HASH = '#';
+const char SEMI_COLON = ';';
+const char CHAR_ARRAY_END = '\0';
+const char HEX_CODE = 'x';
const char WHITE_SPACE = 0x20; // ASCII value of the white space.
+// Range 1 0x0u < XHTML_DECIMAL_ENTITY_RANGE <= 0xD7FFu
+// Range 2 0xE000u < XHTML_DECIMAL_ENTITY_RANGE <= 0xFFFDu
+// Range 3 0x10000u < XHTML_DECIMAL_ENTITY_RANGE <= 0x10FFFFu
+const unsigned long XHTML_DECIMAL_ENTITY_RANGE[] = { 0x0u, 0xD7FFu, 0xE000u, 0xFFFDu, 0x10000u, 0x10FFFFu };
+
const unsigned int MAX_NUM_OF_ATTRIBUTES = 5u; ///< The font tag has the 'family', 'size' 'weight', 'width' and 'slant' attrubutes.
const unsigned int DEFAULT_VECTOR_SIZE = 16u; ///< Default size of run vectors.
+#if defined(DEBUG_ENABLED)
+Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_MARKUP_PROCESSOR");
+#endif
+
/**
* @brief Struct used to retrieve the style runs from the mark-up string.
*/
return isTag;
}
+/**
+ * @brief Returns length of XHTML entity by parsing the text. It also determines if it is XHTML entity or not.
+ *
+ * @param[in] markupStringBuffer The mark-up string buffer. It's a const iterator pointing the current character.
+ * @param[in] markupStringEndBuffer Pointing to end of mark-up string buffer.
+ *
+ * @return Length of markupText in case of XHTML entity otherwise return 0.
+ */
+unsigned int GetXHTMLEntityLength( const char*& markupStringBuffer,
+ const char* const markupStringEndBuffer )
+{
+ char character = *markupStringBuffer;
+ if( AMPERSAND == character ) // '&'
+ {
+ // if the iterator is pointing to a '&' character, then check for ';' to find end to XHTML entity.
+ ++markupStringBuffer;
+ if( markupStringBuffer < markupStringEndBuffer )
+ {
+ unsigned int len = 1u;
+ for( ; markupStringBuffer < markupStringEndBuffer ; ++markupStringBuffer )
+ {
+ character = *markupStringBuffer;
+ ++len;
+ if( SEMI_COLON == character ) // ';'
+ {
+ // found end of XHTML entity
+ ++markupStringBuffer;
+ return len;
+ }
+ else if( ( AMPERSAND == character ) || ( BACK_SLASH == character ) || ( LESS_THAN == character ))
+ {
+ return 0;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/**
+ * @brief It parses a XHTML string which has hex/decimal entity and fill its corresponging utf-8 string.
+ *
+ * @param[in] markupText The mark-up text buffer.
+ * @param[out] utf-8 text Corresponding to markup Text
+ *
+ * @return true if string is successfully parsed otherwise false
+ */
+bool XHTMLNumericEntityToUtf8 ( const char* markupText, char* utf8 )
+{
+ bool result = false;
+
+ if( NULL != markupText )
+ {
+ bool isHex = false;
+
+ // check if hex or decimal entity
+ if( ( CHAR_ARRAY_END != *markupText ) && ( HEX_CODE == *markupText ) )
+ {
+ isHex = true;
+ ++markupText;
+ }
+
+ char* end = NULL;
+ unsigned long l = strtoul( markupText, &end, ( isHex ? 16 : 10 ) ); // l contains UTF-32 code in case of correct XHTML entity
+
+ // check for valid XHTML numeric entities (between '#' or "#x" and ';')
+ if( ( l > 0 ) && ( l < ULONG_MAX ) && ( *end == SEMI_COLON ) ) // in case wrong XHTML entity is set eg. "abcdefs;" in that case *end will be 'a'
+ {
+ /* characters XML 1.1 permits */
+ if( ( ( XHTML_DECIMAL_ENTITY_RANGE[0] < l ) && ( l <= XHTML_DECIMAL_ENTITY_RANGE[1] ) ) ||
+ ( ( XHTML_DECIMAL_ENTITY_RANGE[2] <= l ) && ( l <= XHTML_DECIMAL_ENTITY_RANGE[3] ) ) ||
+ ( ( XHTML_DECIMAL_ENTITY_RANGE[4] <= l ) && ( l <= XHTML_DECIMAL_ENTITY_RANGE[5] ) ) )
+ {
+ // Convert UTF32 code to UTF8
+ Utf32ToUtf8( reinterpret_cast<const uint32_t* const>( &l ), 1, reinterpret_cast<uint8_t*>( utf8 ) );
+ result = true;
+ }
+ }
+ }
+ return result;
+}
+
} // namespace
void ProcessMarkupString( const std::string& markupString, MarkupProcessData& markupProcessData )
}
} // <outline></outline>
} // end if( IsTag() )
- else
+ else if( markupStringBuffer < markupStringEndBuffer )
{
unsigned char character = *markupStringBuffer;
+ const char* markupBuffer = markupStringBuffer;
+ unsigned char count = GetUtf8Length( character );
+ char utf8[8];
if( ( BACK_SLASH == character ) && ( markupStringBuffer + 1u < markupStringEndBuffer ) )
{
- // Adding < or > special character.
+ // Adding < , > or & special character.
const unsigned char nextCharacter = *( markupStringBuffer + 1u );
- if( ( LESS_THAN == nextCharacter ) || ( GREATER_THAN == nextCharacter ) )
+ if( ( LESS_THAN == nextCharacter ) || ( GREATER_THAN == nextCharacter ) || ( AMPERSAND == nextCharacter ) )
{
character = nextCharacter;
++markupStringBuffer;
+
+ count = GetUtf8Length( character );
+ markupBuffer = markupStringBuffer;
}
}
+ else // checking if conatins XHTML entity or not
+ {
+ const unsigned int len = GetXHTMLEntityLength( markupStringBuffer, markupStringEndBuffer);
- const unsigned char numberOfBytes = GetUtf8Length( character );
+ // Parse markupStringTxt if it contains XHTML Entity between '&' and ';'
+ if( len > 0 )
+ {
+ char* entityCode = NULL;
+ bool result = false;
+ count = 0;
- markupProcessData.markupProcessedText.push_back( character );
- for( unsigned char i = 1u; i < numberOfBytes; ++i )
- {
- ++markupStringBuffer;
- markupProcessData.markupProcessedText.push_back( *markupStringBuffer );
+ // Checking if XHTML Numeric Entity
+ if( HASH == *( markupBuffer + 1u ) )
+ {
+ entityCode = &utf8[0];
+ // markupBuffer is currently pointing to '&'. By adding 2u to markupBuffer it will point to numeric string by skipping "&#'
+ result = XHTMLNumericEntityToUtf8( ( markupBuffer + 2u ), entityCode );
+ }
+ else // Checking if XHTML Named Entity
+ {
+ entityCode = const_cast<char*> ( NamedEntityToUtf8( markupBuffer, len ) );
+ result = ( entityCode != NULL );
+ }
+ if ( result )
+ {
+ markupBuffer = entityCode; //utf8 text assigned to markupBuffer
+ character = markupBuffer[0];
+ }
+ else
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Not valid XHTML entity : (%.*s) \n", len, markupBuffer );
+ markupBuffer = NULL;
+ }
+ }
+ else // in case string conatins Start of XHTML Entity('&') but not its end character(';')
+ {
+ if( character == AMPERSAND )
+ {
+ markupBuffer = NULL;
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Not Well formed XHTML content \n" );
+ }
+ }
}
- ++characterIndex;
- ++markupStringBuffer;
+ if( markupBuffer != NULL )
+ {
+ const unsigned char numberOfBytes = GetUtf8Length( character );
+ markupProcessData.markupProcessedText.push_back( character );
+
+ for( unsigned char i = 1u; i < numberOfBytes; ++i )
+ {
+ ++markupBuffer;
+ markupProcessData.markupProcessedText.push_back( *markupBuffer );
+ }
+
+ ++characterIndex;
+ markupStringBuffer += count;
+ }
}
}
projects / platform / core / uifw / dali-toolkit.git / blobdiff