|
osgEarth 2.1.1
|
|
osgEarth 2.1.1
|
Experimental and untested: represents a "path" to access a node. More...
Public Member Functions | |
| Path (const std::string &path, const PathArgument &a1=PathArgument(), const PathArgument &a2=PathArgument(), const PathArgument &a3=PathArgument(), const PathArgument &a4=PathArgument(), const PathArgument &a5=PathArgument()) | |
| const Value & | resolve (const Value &root) const |
| Value | resolve (const Value &root, const Value &defaultValue) const |
| Value & | make (Value &root) const |
| Creates the "path" to access the specified node and returns a reference on the node. | |
Private Types | |
| typedef std::vector< const PathArgument * > | InArgs |
| typedef std::vector< PathArgument > | Args |
Private Member Functions | |
| void | makePath (const std::string &path, const InArgs &in) |
| void | addPathInArg (const std::string &path, const InArgs &in, InArgs::const_iterator &itInArg, PathArgument::Kind kind) |
| void | invalidPath (const std::string &path, int location) |
Private Attributes | |
| Args | args_ |
Experimental and untested: represents a "path" to access a node.
Syntax:
typedef std::vector<PathArgument> osgEarth::Json::Path::Args [private] |
typedef std::vector<const PathArgument *> osgEarth::Json::Path::InArgs [private] |
| Path::Path | ( | const std::string & | path, |
| const PathArgument & | a1 = PathArgument(), |
||
| const PathArgument & | a2 = PathArgument(), |
||
| const PathArgument & | a3 = PathArgument(), |
||
| const PathArgument & | a4 = PathArgument(), |
||
| const PathArgument & | a5 = PathArgument() |
||
| ) |
Definition at line 1807 of file JsonUtils.cpp.
{
InArgs in;
in.push_back( &a1 );
in.push_back( &a2 );
in.push_back( &a3 );
in.push_back( &a4 );
in.push_back( &a5 );
makePath( path, in );
}
Here is the call graph for this function:| void Path::addPathInArg | ( | const std::string & | path, |
| const InArgs & | in, | ||
| InArgs::const_iterator & | itInArg, | ||
| PathArgument::Kind | kind | ||
| ) | [private] |
Definition at line 1869 of file JsonUtils.cpp.
{
if ( itInArg == in.end() )
{
// Error: missing argument %d
}
else if ( (*itInArg)->kind_ != kind )
{
// Error: bad argument type
}
else
{
args_.push_back( **itInArg );
}
}
Here is the caller graph for this function:| void Path::invalidPath | ( | const std::string & | path, |
| int | location | ||
| ) | [private] |
Definition at line 1890 of file JsonUtils.cpp.
{
// Error: invalid path.
}
Here is the caller graph for this function:Creates the "path" to access the specified node and returns a reference on the node.
Definition at line 1957 of file JsonUtils.cpp.
{
Value *node = &root;
for ( Args::const_iterator it = args_.begin(); it != args_.end(); ++it )
{
const PathArgument &arg = *it;
if ( arg.kind_ == PathArgument::kindIndex )
{
if ( !node->isArray() )
{
// Error: node is not an array at position ...
}
node = &((*node)[arg.index_]);
}
else if ( arg.kind_ == PathArgument::kindKey )
{
if ( !node->isObject() )
{
// Error: node is not an object at position...
}
node = &((*node)[arg.key_]);
}
}
return *node;
}
Here is the call graph for this function:| void Path::makePath | ( | const std::string & | path, |
| const InArgs & | in | ||
| ) | [private] |
Definition at line 1825 of file JsonUtils.cpp.
{
const char *current = path.c_str();
const char *end = current + path.length();
InArgs::const_iterator itInArg = in.begin();
while ( current != end )
{
if ( *current == '[' )
{
++current;
if ( *current == '%' )
addPathInArg( path, in, itInArg, PathArgument::kindIndex );
else
{
Value::UInt index = 0;
for ( ; current != end && *current >= '0' && *current <= '9'; ++current )
index = index * 10 + Value::UInt(*current - '0');
args_.push_back( index );
}
if ( current == end || *current++ != ']' )
invalidPath( path, int(current - path.c_str()) );
}
else if ( *current == '%' )
{
addPathInArg( path, in, itInArg, PathArgument::kindKey );
++current;
}
else if ( *current == '.' )
{
++current;
}
else
{
const char *beginName = current;
while ( current != end && !strchr( "[.", *current ) )
++current;
args_.push_back( std::string( beginName, current ) );
}
}
}
Here is the call graph for this function: Here is the caller graph for this function:Definition at line 1898 of file JsonUtils.cpp.
{
const Value *node = &root;
for ( Args::const_iterator it = args_.begin(); it != args_.end(); ++it )
{
const PathArgument &arg = *it;
if ( arg.kind_ == PathArgument::kindIndex )
{
if ( !node->isArray() || node->isValidIndex( arg.index_ ) )
{
// Error: unable to resolve path (array value expected at position...
}
node = &((*node)[arg.index_]);
}
else if ( arg.kind_ == PathArgument::kindKey )
{
if ( !node->isObject() )
{
// Error: unable to resolve path (object value expected at position...)
}
node = &((*node)[arg.key_]);
if ( node == &Value::null )
{
// Error: unable to resolve path (object has no member named '' at position...)
}
}
}
return *node;
}
Here is the call graph for this function:Definition at line 1930 of file JsonUtils.cpp.
{
const Value *node = &root;
for ( Args::const_iterator it = args_.begin(); it != args_.end(); ++it )
{
const PathArgument &arg = *it;
if ( arg.kind_ == PathArgument::kindIndex )
{
if ( !node->isArray() || node->isValidIndex( arg.index_ ) )
return defaultValue;
node = &((*node)[arg.index_]);
}
else if ( arg.kind_ == PathArgument::kindKey )
{
if ( !node->isObject() )
return defaultValue;
node = &((*node)[arg.key_]);
if ( node == &Value::null )
return defaultValue;
}
}
return *node;
}
Here is the call graph for this function:Args osgEarth::Json::Path::args_ [private] |
1.7.3
