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));
}
}
}
public static void Parse(HmdBlockID root, HmdTokenizer tokenizer,
String importPath, HmdProperties hmdProperties)
{
if (root == null)
{
throw new ArgumentNullException("root");
}
TextWriter debugOutput = HmdDebug.DebugOutput;
if (debugOutput == null)
{
debugOutput = TextWriter.Null;
}
if (importPath == null)
{
importPath = String.Empty;
}
HmdBlockID parentID = root;
Stack <HmdBlockID> parentIDStack = new Stack <HmdBlockID>();
while (true)
{
HmdGlobalToken token = tokenizer.NextGlobalToken();
//
// Check for EOF
//
if (token.type == HmdGlobalTokenType.EOF)
{
debugOutput.WriteLine("EOF");
break;
}
if (token.type == HmdGlobalTokenType.ID)
{
String idString = token.text;
//
// Normal Parse
//
Boolean isBlockID;
Boolean isEmptyID = tokenizer.NextIDType(out isBlockID);
if (isBlockID)
{
debugOutput.WriteLine("Block ID : {0}", idString);
parentIDStack.Push(parentID);
HmdBlockID temp = parentID;
parentID = new HmdBlockID(idString, temp);
}
else
{
debugOutput.WriteLine("Value ID : {0}", idString);
if (isEmptyID)
{
parentID.AddChild(new HmdValueID(idString, null, parentID));
}
else
{
String nextValue = tokenizer.NextValue();
debugOutput.WriteLine("Value : {0}", nextValue);
parentID.AddChild(new HmdValueID(idString, nextValue, parentID));
}
}
}
else if (token.type == HmdGlobalTokenType.Directive)
{
String directiveID = token.text;
//
// Handling Directives
//
Boolean isBlockID;
Boolean isEmptyID = tokenizer.NextIDType(out isBlockID);
if (isEmptyID)
{
throw new NotImplementedException();
}
else if (!isBlockID)
{
if (directiveID.Equals("import", StringComparison.CurrentCulture) || directiveID.Equals("pimport", StringComparison.CurrentCulture))
{
Boolean isPimport = directiveID[0] == 'p';
String nextValue = tokenizer.NextValue();
debugOutput.WriteLine("{0} : {1}", isPimport ? "%PImport" : "%Import ", nextValue);
if (isPimport && hmdProperties == null)
{
debugOutput.WriteLine("%PImport : Ignoring props, so skipping this %pimport");
}
else
{
String importFileAndPathName = Path.Combine(importPath, nextValue);
using (FileStream importStream = new FileStream(importFileAndPathName, FileMode.Open))
{
debugOutput.WriteLine("File Start: {0}", importFileAndPathName);
if (isPimport)
{
ParsePropertiesFile(hmdProperties.root, hmdProperties,
new HmdTokenizer(new StreamReader(importStream), 1), importPath, true);
}
else
{
Parse(parentID, new HmdTokenizer(new StreamReader(importStream), 1), importPath, hmdProperties);
}
debugOutput.WriteLine("File End : {0}", importFileAndPathName);
}
}
}
else if (directiveID.Equals("enum", StringComparison.CurrentCulture))
{
throw new FormatException("%enum value directive must be in a %props block directive");
}
else if (directiveID.Equals("props", StringComparison.CurrentCulture))
{
throw new FormatException("%props value directive must be in a %props block directive");
}
else
{
throw new Exception(String.Format("Parser (line {0}): Unrecognized value directive \"{1}\"",
token.line, directiveID));
}
}
else
{
if (directiveID.Equals("props", StringComparison.CurrentCulture))
{
debugOutput.WriteLine("%Props Blk:");
if (hmdProperties == null)
{
debugOutput.WriteLine("Skipping %props block...");
IgnoreCurrentBlock(debugOutput, tokenizer);
}
else
{
ParsePropertiesFile(hmdProperties.root, hmdProperties, tokenizer, importPath, false);
}
}
else if (directiveID.Equals("group", StringComparison.CurrentCulture))
{
throw new FormatException("%group value directive must be in a %props block directive");
}
else
{
throw new Exception(String.Format("Parser (line {0}): Unrecognized block directive \"{1}\"",
token.line, directiveID));
}
}
}
else if (token.type == HmdGlobalTokenType.CloseBrace)
{
if (parentIDStack.Count <= 0)
{
throw new FormatException(String.Format("Parser (line {0}): Unmatched close brace {1}", token.line, token));
}
debugOutput.WriteLine("Block End : {0}", parentID.idOriginalCase);
HmdBlockID temp = parentID;
parentID = parentIDStack.Pop();
parentID.AddChild(temp);
}
else
{
throw new FormatException(String.Format("Parser (line {0}): Unexpected token {1}", token.line, token));
}
}
if (parentIDStack.Count > 0)
{
throw new FormatException(String.Format("Parser (EOF): Block \"{0}\" was not ended with '}'", parentIDStack.Peek().idOriginalCase));
}
}
private static void IgnoreCurrentBlock(TextWriter debugOutput, HmdTokenizer tokenizer)
{
HmdGlobalToken token;
Int32 ignoreStackDepth = 0;
while (true)
{
token = tokenizer.NextGlobalToken();
// Check for EOF
if (token.type == HmdGlobalTokenType.EOF)
{
throw new FormatException(String.Format("Parser (line {0}): Got EOF in the middle of a %props block",
token.line));
}
if (token.type == HmdGlobalTokenType.ID)
{
String idString = token.text;
Boolean isBlockID;
Boolean isEmptyID = tokenizer.NextIDType(out isBlockID);
if (isEmptyID)
{
debugOutput.WriteLine("Value ID : {0} (IGNORED)", idString);
}
else if (isBlockID)
{
debugOutput.WriteLine("Block ID : {0}", idString);
ignoreStackDepth++;
}
else
{
debugOutput.WriteLine("Value ID : {0} (IGNORED)", idString);
String nextValue = tokenizer.NextValue();
debugOutput.WriteLine("Value : {0} (IGNORED)", nextValue);
}
}
else if (token.type == HmdGlobalTokenType.Directive)
{
String directiveIDString = token.text;
Boolean isBlockID;
Boolean isEmptyID = tokenizer.NextIDType(out isBlockID);
if (isEmptyID)
{
debugOutput.WriteLine("Value ID : {0} (IGNORED)", directiveIDString);
}
else if (isBlockID)
{
debugOutput.WriteLine("Block ID : {0}", directiveIDString);
ignoreStackDepth++;
}
else
{
debugOutput.WriteLine("Value ID : {0} (IGNORED)", directiveIDString);
String nextValue = tokenizer.NextValue();
debugOutput.WriteLine("Value : {0} (IGNORED)", nextValue);
}
}
else if (token.type == HmdGlobalTokenType.CloseBrace)
{
if (ignoreStackDepth <= 0)
{
break;
}
ignoreStackDepth--;
}
else
{
throw new FormatException(String.Format("Parser (line {0}): Unexpected token {1}", token.line, token));
}
}
}