private static void ParsePropertiesFile(HmdBlockIDProperties propertyBlockRoot, HmdProperties hmdProperties,
HmdTokenizer tokenizer, String importPath, Boolean isPImportFile)
{
TextWriter debugOutput = HmdDebug.DebugOutput;
if (debugOutput == null)
{
debugOutput = TextWriter.Null;
}
if (propertyBlockRoot == null)
{
throw new ArgumentNullException("propertyBlockRoot");
}
//
// TODO: What about pimport files? Should they require a %props block? If not, then can they put it anyways? I'll need to add another argument to this argument list
// that will say whether or not it is a PImport so it can gracefully end on EOF instead of '}' (close brace)
//
//
// TODO: MAKE SURE YOU DISALLOW SPECIFYING %PROPS VALUE ID in a BLOCK TWICE!!!
//
//
HmdBlockIDProperties currentParent = propertyBlockRoot;
Stack <HmdBlockIDProperties> parentStack = new Stack <HmdBlockIDProperties>();
while (true)
{
HmdGlobalToken token = tokenizer.NextGlobalToken();
//
// Check for EOF
//
if (token.type == HmdGlobalTokenType.EOF)
{
if (isPImportFile && parentStack.Count <= 0)
{
return;
}
else
{
throw new FormatException("Reached EOF inside a %props block directive");
}
}
if (token.type == HmdGlobalTokenType.ID)
{
String idString = token.text;
Boolean isBlockID;
Boolean isEmptyID = tokenizer.NextIDType(out isBlockID);
if (isEmptyID)
{
// this just means the value ID has all the defaults
debugOutput.WriteLine("EmptyProp ID: {0}", idString);
HmdValueIDProperties valueIDProperties = new HmdValueIDProperties(idString, hmdProperties.defaultCountProperty,
hmdProperties.defaultHmdType, null, currentParent, null);
if (!valueIDProperties.DirectParentIsOverriden)
{
currentParent.AddDirectChildWithNoParentOverrideList(valueIDProperties);
}
hmdProperties.AddPropertiesFromDefinition(valueIDProperties);
}
else if (!isBlockID)
{
debugOutput.WriteLine("ValProp ID: {0}", idString);
String nextValue = tokenizer.NextValue();
debugOutput.WriteLine("ValProp : {0}", nextValue);
HmdValueIDProperties valueIDProperties = HmdParser.ParseValueProperties(idString, nextValue, currentParent, hmdProperties);
if (!valueIDProperties.DirectParentIsOverriden)
{
currentParent.AddDirectChildWithNoParentOverrideList(valueIDProperties);
}
hmdProperties.AddPropertiesFromDefinition(valueIDProperties);
}
else
{
debugOutput.WriteLine("BlkProp ID: {0}", idString);
HmdBlockIDProperties blockIDProperties = new HmdBlockIDProperties(idString, hmdProperties.defaultCountProperty, currentParent);
// wait to add this child to the current parent so we know whether or not it's default parent is overriden
hmdProperties.AddPropertiesFromDefinition(blockIDProperties);
parentStack.Push(currentParent);
currentParent = blockIDProperties;
}
}
else if (token.type == HmdGlobalTokenType.Directive)
{
String directiveID = token.text;
Boolean isBlockID;
Boolean isEmptyID = tokenizer.NextIDType(out isBlockID);
if (isEmptyID)
{
throw new NotImplementedException();
}
else if (!isBlockID)
{
//
// TODO: Props Blocks should not allow %import directives, they should only allow %pimport directives
//
if (token.text.Equals("import", StringComparison.CurrentCulture))
{
throw new FormatException("%import directive not allowed inside a %prop block");
}
else if (token.text.Equals("pimport", StringComparison.CurrentCulture))
{
String nextValue = tokenizer.NextValue();
debugOutput.WriteLine("%PImport : {0}", nextValue);
String importFileAndPathName = Path.Combine(importPath, nextValue);
using (FileStream importStream = new FileStream(importFileAndPathName, FileMode.Open))
{
debugOutput.WriteLine("File Start: {0}", importFileAndPathName);
ParsePropertiesFile(currentParent, hmdProperties, new HmdTokenizer(new StreamReader(importStream), 1), importPath, false);
debugOutput.WriteLine("File End : {0}", importFileAndPathName);
}
}
else if (token.text.Equals("enum", StringComparison.CurrentCulture))
{
String nextValue = tokenizer.NextValue();
debugOutput.WriteLine("%Enum : {0}", nextValue);
hmdProperties.AddEnum(new HmdEnum(nextValue));
}
else if (token.text.Equals("props", StringComparison.CurrentCulture))
{
if (parentStack.Count <= 0)
{
throw new FormatException("You can't specify a %props value on the root");
}
String nextValue = tokenizer.NextValue();
debugOutput.WriteLine("%Props : {0}", nextValue);
HmdParser.ParseAndOverrideBlockProperties(currentParent, nextValue);
}
else
{
throw new Exception(String.Format("Parser (line {0}): Unrecognized value directive \"{1}\"",
token.line, token.text));
}
}
else
{
if (token.text.Equals("props", StringComparison.CurrentCulture))
{
throw new FormatException("Right now this is just weird, why do you have a %props block inside a props block (Maybe I'll let this slide later)?");
debugOutput.WriteLine("Block ID : %props Directive");
if (hmdProperties == null)
{
debugOutput.WriteLine("Not Parsing %props Directive Block ID...");
throw new NotImplementedException("Haven't implemented the feature to parse without doing the props block");
}
else
{
ParsePropertiesFile(hmdProperties.root, hmdProperties, tokenizer, importPath, false);
}
}
else if (token.text.Equals("group", StringComparison.CurrentCulture))
{
throw new NotImplementedException();
}
else
{
throw new Exception(String.Format("Parser (line {0}): Unrecognized block directive \"{1}\"",
token.line, token.text));
}
}
}
else if (token.type == HmdGlobalTokenType.CloseBrace)
{
if (parentStack.Count <= 0)
{
debugOutput.WriteLine("%Props End:");
return;
}
debugOutput.WriteLine("Block End : {0}", currentParent.idOriginalCase);
HmdBlockIDProperties temp = currentParent;
currentParent = parentStack.Pop();
if (!temp.DirectParentIsOverriden)
{
currentParent.AddDirectChildWithNoParentOverrideList(temp);
}
}
else
{
throw new FormatException(String.Format("Parser (line {0}): Unexpected token {1}", token.line, token));
}
}
}
//
// Maybe change to pass in the string offset and length?
//
public static HmdValueIDProperties ParseValueProperties(String idString, String props, HmdBlockIDProperties definitionParent, HmdProperties hmdProperties)
{
if (idString == null)
{
throw new ArgumentNullException("idString");
}
Boolean defaultCountPropertyOverriden = false;
Boolean defaultHmdTypeOverriden = false;
ICountProperty countProperty = hmdProperties.defaultCountProperty;
HmdType hmdType = hmdProperties.defaultHmdType;
HmdEnumReference enumReference = null;
HmdParentReference[] parentOverrideList = null;
Int32 offset = 0, saveOffset;
//
// TODO: To save on memory, maybe I'll add some type of hash lookup so I don't have to instantiate multiple HmdType classes?
//
while (true)
{
while (true)
{
if (offset >= props.Length)
{
return(new HmdValueIDProperties(idString, countProperty, hmdType, enumReference,
definitionParent, parentOverrideList));
}
if (!Char.IsWhiteSpace(props[offset]))
{
break;
}
offset++;
}
if (props[offset] >= '0' && props[offset] <= '9')
{
saveOffset = offset;
// keep going while you see 0-9, '-' or '*'
do
{
offset++;
if (offset >= props.Length)
{
break;
}
} while ((props[offset] >= '0' && props[offset] <= '9') || props[offset] == '-' || props[offset] == '*');
//
// Check that the 'count' property has not been specified Twice
//
if (defaultCountPropertyOverriden)
{
throw new FormatException("You've specified the 'count' property twice!");
}
defaultCountPropertyOverriden = true;
countProperty = CountProperty.Parse(props.Substring(saveOffset, offset - saveOffset));
}
else if (props[offset] == 's')
{
if (offset + 6 > props.Length) // 6 = "string".Length
{
throw new FormatException(String.Format("Found character '{0}', expected to become \"{1}\", but there are some characters missing",
HmdTypeClass.String[0], HmdTypeClass.String));
}
if (props[offset + 1] != 't' ||
props[offset + 2] != 'r' ||
props[offset + 3] != 'i' ||
props[offset + 4] != 'n' ||
props[offset + 5] != 'g')
{
throw new FormatException(String.Format("Expected 'string', but got '{0}'", props.Substring(offset, 6)));
}
offset += 6;
//
// Check that the 'type' property has not been specified Twice
//
if (defaultHmdTypeOverriden)
{
throw new FormatException("You've specified the 'type' property twice!");
}
defaultHmdTypeOverriden = true;
hmdType = HmdType.String;
}
else if (props[offset] == HmdTypeClass.Boolean[0])
{
if (offset + HmdTypeClass.Boolean.Length > props.Length)
{
throw new FormatException(
String.Format("Found character '{0}', expected to become \"{1}\", but there are some characters missing",
HmdTypeClass.Boolean[0], HmdTypeClass.Boolean));
}
offset++;
for (int i = 1; i < HmdTypeClass.Boolean.Length; i++)
{
if (props[offset] != HmdTypeClass.Boolean[i])
{
throw new FormatException(String.Format("Expected \"{0}\", but got \"{1}\"", HmdTypeClass.Boolean, props.Substring(offset - i, HmdTypeClass.Boolean.Length)));
}
offset++;
}
//
// Check that the 'type' property has not been specified Twice
//
if (defaultHmdTypeOverriden)
{
throw new FormatException("You've specified the 'type' property twice!");
}
defaultHmdTypeOverriden = true;
hmdType = HmdType.Boolean;
}
else if (props[offset] == 'i' || props[offset] == 'u')
{
Byte byteSize;
Boolean isUnsigned = false;
if (props[offset] == 'u')
{
isUnsigned = true;
offset++;
if (props[offset] != 'i')
{
throw new FormatException(
String.Format("Found character 'u', expected to become \"uint\", but the next character was '{0}'", props[offset]));
}
}
if (offset + 3 > props.Length)
{
throw new FormatException(
String.Format("Found character '{0}', expected to become \"{1}\", but there are some characters missing",
isUnsigned ? 'u' : 'i', isUnsigned ? "uint" : "int"));
}
if (props[offset + 1] != 'n' || props[offset + 2] != 't')
{
throw new FormatException(String.Format("Expected \"{0}\", but got \"{1}\"",
isUnsigned ? "uint" : "int", isUnsigned ? props.Substring(offset - 1, 4) : props.Substring(offset, 3)));
}
offset += 3;
if (offset < props.Length && props[offset] >= '0' && props[offset] <= '9')
{
saveOffset = offset;
do
{
offset++;
} while (offset < props.Length && props[offset] >= '0' && props[offset] <= '9');
byteSize = Byte.Parse(props.Substring(saveOffset, offset - saveOffset));
}
else
{
byteSize = 0;
}
//
// Check that the 'type' property has not been specified Twice
//
if (defaultHmdTypeOverriden)
{
throw new FormatException("You've specified the 'type' property twice!");
}
defaultHmdTypeOverriden = true;
hmdType = HmdTypeClass.GetIntegerType(isUnsigned, byteSize);
}
else if (props[offset] == 'e')
{
offset++;
if (offset >= props.Length)
{
throw new FormatException("Found character 'e', expected to become \"enum\" or \"empty\" but the string abrubtly ended");
}
if (props[offset] == HmdTypeClass.Empty[1])
{
if (offset + HmdTypeClass.Empty.Length - 1 > props.Length)
{
throw new FormatException("Found \"em\", expected to become \"empty\", but there are some characters missing");
}
offset++;
for (int i = 2; i < HmdTypeClass.Empty.Length; i++)
{
if (props[offset] != HmdTypeClass.Empty[i])
{
throw new FormatException(String.Format("Expected \"{0}\", but got \"{1}\"", HmdTypeClass.Empty, props.Substring(offset - i, HmdTypeClass.Empty.Length)));
}
offset++;
}
//
// Check that the 'type' property has not been specified Twice
//
if (defaultHmdTypeOverriden)
{
throw new FormatException("You've specified the 'type' property twice!");
}
defaultHmdTypeOverriden = true;
hmdType = HmdType.Empty;
}
else if (props[offset] == HmdTypeClass.Enumeration[1])
{
if (offset + HmdTypeClass.Enumeration.Length + 1 > props.Length)
{
throw new FormatException(
String.Format("Found \"en\", expected to become \"{0}\", but there are some characters missing",
HmdTypeClass.Enumeration));
}
offset++;
for (int i = 2; i < HmdTypeClass.Enumeration.Length; i++)
{
if (props[offset] != HmdTypeClass.Enumeration[i])
{
throw new FormatException(String.Format("Expected \"{0}\", but got \"{1}\"", HmdTypeClass.Enumeration, props.Substring(offset - i, HmdTypeClass.Enumeration.Length)));
}
offset++;
}
// skip whitespace
while (true)
{
if (offset >= props.Length)
{
throw new FormatException("Expected '(' or 'a-zA-Z', but got EOF");
}
if (!Char.IsWhiteSpace(props[offset]))
{
break;
}
offset++;
}
if (props[offset] == '(')
{
saveOffset = offset + 1;
// skip to the next whitespace or ';'
while (true)
{
offset++;
if (offset >= props.Length)
{
throw new FormatException("Expected ')' but reached end of string");
}
if (props[offset] == ')')
{
break;
}
}
String enumReferenceName = (definitionParent == null || definitionParent.definitionContext == null) ?
idString.ToLower() : HmdIDProperties.CombineIDContext(definitionParent.idWithContext, idString.ToLower());
HmdEnum newInlineEnum = new HmdEnum(enumReferenceName, props.Substring(saveOffset, offset - saveOffset));
enumReference = newInlineEnum;
if (hmdProperties != null)
{
hmdProperties.AddEnum(newInlineEnum);
}
offset++;
if (defaultHmdTypeOverriden)
{
throw new FormatException("You've specified the 'type' property twice!");
}
defaultHmdTypeOverriden = true;
hmdType = HmdType.Enumeration;
}
else if ((props[offset] >= 'a' && props[offset] <= 'z') || (props[offset] >= 'A' && props[offset] <= 'Z'))
{
saveOffset = offset;
// skip to the next whitespace or ';'
while (true)
{
offset++;
if (offset >= props.Length)
{
break;
}
if (Char.IsWhiteSpace(props[offset]))
{
break;
}
}
if (offset - saveOffset <= 0)
{
throw new FormatException("Unable to parse enum type, the \"enum\" keyword must be either \"enum <type>\" (with only one space before <type>) or \"enum(<value> <value> ...)\"");
}
enumReference = new HmdEnumReferenceByString(props.Substring(saveOffset, offset - saveOffset));
if (defaultHmdTypeOverriden)
{
throw new FormatException("You've specified the 'type' property twice!");
}
defaultHmdTypeOverriden = true;
hmdType = HmdType.Enumeration;
}
else
{
throw new FormatException(String.Format("Expected '(' or 'a-zA-Z' after \"enum\", but got '{0}'", props[offset]));
}
}
else
{
throw new FormatException(String.Format(
"Found character 'e', expected to become \"enum\" or \"empty\" but the second character is '{0}'", props[offset]));
}
}
else if (props[offset] == '(')
{
if (parentOverrideList != null)
{
throw new FormatException("You've specified the 'parents' property twice!");
}
parentOverrideList = ParseParentList(props, ref offset);
}
else
{
throw new FormatException(
String.Format("Could not recognize first character of property '{0}', of the props string \"{1}\"", props[offset], props));
}
}
}