20 #ifndef __COMMON_UTIL_H    21 #  define __COMMON_UTIL_H    39 inline bool isTrue(QString 
const & str)
    41     return str == 
"1" || str.toLower() == 
"yes" || str.toLower() == 
"true" || str.toLower() == 
"on";
    54     return str == 
"0" || str.toLower() == 
"no" || str.toLower() == 
"false" || str.toLower() == 
"off";
 
bool isTrue(QString const &str)
Tests if the string means 'true'. 
 
bool isFalse(QString const &str)
Tests if the string means 'false'. 
 
COMMON_EXPORT QString strFromEscapedCharArray(QByteArray const &str)
Converts escaped 7-bit character arrays to unicode string. 
 
COMMON_EXPORT QByteArray binFromEscapedCharArray(QByteArray const &str)
Converts escaped 7-bit character arrays to binary arrays. 
 
COMMON_EXPORT QByteArray strToEscapedCharArray(QString const &str)
Converts unicode strings to escaped 7-bit character arrays. 
 
COMMON_EXPORT QByteArray binToEscapedCharArray(QByteArray const &src)
Converts binary arrays to escaped 7-bit character arrays. 
 
COMMON_EXPORT QVariant toVariant(QString const &value, QVariant const &defaultValue)
Converts strings to variant values.