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Added more explicit error messages to the property lists parser.

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More specifically, each time an error or a warning is issued the location of the corresponding XML tag (file name an line number) is reported.
This commit is contained in:
bcoconni 2013-11-24 12:20:26 +01:00
parent 7bbec8dbcb
commit 8e01acaa12
1 changed files with 28 additions and 17 deletions
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45
simgear/props/props_io.cxx
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@ -138,7 +138,8 @@ PropsVisitor::endXML ()
* Check a yes/no flag, with default.
*/
static bool
checkFlag (const char * flag, bool defaultState = true)
checkFlag (const char * flag, const sg_location& location,
bool defaultState = true)
{
if (flag == 0)
return defaultState;
@ -151,7 +152,7 @@ checkFlag (const char * flag, bool defaultState = true)
message += flag;
message += '\'';
// FIXME: add location info
throw sg_io_exception(message, "SimGear Property Reader");
throw sg_io_exception(message, location, "SimGear Property Reader");
}
}
@ -159,13 +160,14 @@ void
PropsVisitor::startElement (const char * name, const XMLAttributes &atts)
{
const char * attval;
const sg_location location(getPath(), getLine(), getColumn());
if (_level == 0) {
if (strcmp(name, "PropertyList")) {
string message = "Root element name is ";
message += name;
message += "; expected PropertyList";
throw sg_io_exception(message, "SimGear Property Reader");
throw sg_io_exception(message, location, "SimGear Property Reader");
}
// Check for an include.
@ -175,7 +177,10 @@ PropsVisitor::startElement (const char * name, const XMLAttributes &atts)
SGPath path = simgear::ResourceManager::instance()->findPath(attval, SGPath(_base).dir());
if (path.isNull())
{
throw sg_io_exception("Cannot open file", sg_location(attval));
string message ="Cannot open file ";
message += attval;
throw sg_io_exception(message, location,
"SimGear Property Reader");
}
readProperties(path.str(), _root, 0, _extended);
} catch (sg_io_exception &e) {
@ -204,7 +209,7 @@ PropsVisitor::startElement (const char * name, const XMLAttributes &atts)
SGPropertyNode * node = st.node->getChild(strName, index, true);
if (!node->getAttribute(SGPropertyNode::WRITE)) {
SG_LOG(SG_INPUT, SG_ALERT, "Not overwriting write-protected property "
<< node->getPath(true));
<< node->getPath(true) << "\n at " << location.asString());
node = &null;
}
@ -214,32 +219,33 @@ PropsVisitor::startElement (const char * name, const XMLAttributes &atts)
int mode = _default_mode;
attval = atts.getValue("read");
if (checkFlag(attval, true))
if (checkFlag(attval, location, true))
mode |= SGPropertyNode::READ;
attval = atts.getValue("write");
if (checkFlag(attval, true))
if (checkFlag(attval, location, true))
mode |= SGPropertyNode::WRITE;
attval = atts.getValue("archive");
if (checkFlag(attval, false))
if (checkFlag(attval, location, false))
mode |= SGPropertyNode::ARCHIVE;
attval = atts.getValue("trace-read");
if (checkFlag(attval, false))
if (checkFlag(attval, location, false))
mode |= SGPropertyNode::TRACE_READ;
attval = atts.getValue("trace-write");
if (checkFlag(attval, false))
if (checkFlag(attval, location, false))
mode |= SGPropertyNode::TRACE_WRITE;
attval = atts.getValue("userarchive");
if (checkFlag(attval, false))
if (checkFlag(attval, location, false))
mode |= SGPropertyNode::USERARCHIVE;
attval = atts.getValue("preserve");
if (checkFlag(attval, false))
if (checkFlag(attval, location, false))
mode |= SGPropertyNode::PRESERVE;
// Check for an alias.
attval = atts.getValue("alias");
if (attval != 0) {
if (!node->alias(attval))
SG_LOG(SG_INPUT, SG_ALERT, "Failed to set alias to " << attval);
SG_LOG(SG_INPUT, SG_ALERT, "Failed to set alias to " << attval
<< "\n at " << location.asString());
}
// Check for an include.
@ -250,7 +256,10 @@ PropsVisitor::startElement (const char * name, const XMLAttributes &atts)
SGPath path = simgear::ResourceManager::instance()->findPath(attval, SGPath(_base).dir());
if (path.isNull())
{
throw sg_io_exception("Cannot open file", sg_location(attval));
string message ="Cannot open file ";
message += attval;
throw sg_io_exception(message, location,
"SimGear Property Reader");
}
readProperties(path.str(), node, 0, _extended);
} catch (sg_io_exception &e) {
@ -258,7 +267,7 @@ PropsVisitor::startElement (const char * name, const XMLAttributes &atts)
}
attval = atts.getValue("omit-node");
omit = checkFlag(attval, false);
omit = checkFlag(attval, location, false);
}
const char *type = atts.getValue("type");
@ -276,6 +285,7 @@ PropsVisitor::endElement (const char * name)
{
State &st = state();
bool ret;
const sg_location location(getPath(), getLine(), getColumn());
// If there are no children and it's
// not an alias, then it's a leaf value.
@ -310,12 +320,13 @@ PropsVisitor::endElement (const char * name)
message += st.type;
message += '\'';
// FIXME: add location information
throw sg_io_exception(message, "SimGear Property Reader");
throw sg_io_exception(message, location, "SimGear Property Reader");
}
if (!ret)
SG_LOG(SG_INPUT, SG_ALERT, "readProperties: Failed to set "
<< st.node->getPath() << " to value \""
<< _data << "\" with type " << st.type);
<< _data << "\" with type " << st.type << "\n at "
<< location.asString());
}
// Set the access-mode attributes now,