IncludeDirective ParseIncludePath(ProjectItemCodeDocument codeDoc, CodeSegment segment)
{
string workingDir = Path.GetDirectoryName(_project.StartUpCodeDocument.FilePath);
StringBuilder sb = new StringBuilder();
CodeSegment next = segment;
CodeSegment current = null;
List<CodeSegment> _pathTokens = new List<CodeSegment>();
while(next != null && next.Token != Token.NewLine) {
current = next;
next = next.Next;
if(current.Token == Token.TraditionalString)
sb.Append(current.TokenString);
else if(current.Token == Token.Deref) {
if(current.Next != null && current.Next.Token == Token.Identifier) {
if(current.Next.TokenString.Equals(WORKINGDIR_VAR, StringComparison.InvariantCultureIgnoreCase)) {
sb.Append(workingDir);
} else {
RegisterError(codeDoc, current.Next, "Unknown precompiler Variable!");
}
if(current.Next != null && current.Next.Next != null)
next = current.Next.Next.Next;
} else if(current.Next != null) {
RegisterError(codeDoc, current.Next, "Expected Identifier after Deref!");
}
}
if(current != null)
_pathTokens.Add(current);
}
var path = sb.ToString();
try {
if(!path.Contains(':')) {
path = Path.Combine(workingDir, path);
}
} catch {
path = "";
}
var directive = new IncludeDirective() { ResolvedFilePath = path };
CodeError fail = null;
if(!File.Exists(path)){
var err = string.Format("File not found!\n" + path);
fail = new CodeError() { Description = err };
if(_pathTokens.Any())
RegisterError(codeDoc, _pathTokens.First(), err);
}
foreach(var s in _pathTokens) {
s.CodeDOMObject = directive;
if(fail != null) {
s.ErrorContext = fail;
}
}
return directive;
}
protected void RegisterError(Projecting.ProjectItemCodeDocument codeitem, CodeSegment segment, string errorDescription) {
var errorService = codeitem.Project.Solution.ErrorService;
var err = new CodeError() { Description = errorDescription };
if(segment != null) {
segment.ErrorContext = err;
errorService.Add(new Errors.ErrorItem(segment, codeitem, ErrorSource.DirectiveParser));
} else {
errorService.Add(new Errors.ErrorItem(err, codeitem, ErrorSource.DirectiveParser));
}
}