protected TALCommand Compile_METAL_FILL_SLOT(string argument)
{
if (argument.Length == 0)
{
// No argument passed
string msg = "No argument passed! fill-slot commands must be of the form: 'fill-slot: name'";
throw new TemplateParseException(this.currentStartTag, msg);
}
// Check that the name of the slot is valid
if (Constants.METAL_NAME_REGEX.Match(argument).Length != argument.Length)
{
string msg = string.Format("Slot name {0} is invalid.", argument);
throw new TemplateParseException(this.currentStartTag, msg);
}
// Determine what use-macro statement this belongs to by working through the list backwards
int? ourMacroLocation = null;
int location = this.tagStack.Count - 1;
while (ourMacroLocation == null)
{
int macroLocation = this.tagStack[location].UseMacroLocation;
if (macroLocation != -1)
{
ourMacroLocation = macroLocation;
}
else
{
location -= 1;
if (location < 0)
{
string msg = string.Format("metal:fill-slot must be used inside a metal:use-macro call");
throw new TemplateParseException(this.currentStartTag, msg);
}
}
}
// Get the use-macro command we are going to adjust
TALCommand cmnd = this.commandList[(int)ourMacroLocation];
string macroName = (string)cmnd.Attributes[0];
Dictionary<string, TALSubProgram> slotMap = (Dictionary<string, TALSubProgram>)cmnd.Attributes[1];
List<DefineInfo> paramMap = (List<DefineInfo>)cmnd.Attributes[2];
int endSymbol = (int)cmnd.Attributes[3];
if (slotMap.ContainsKey(argument))
{
string msg = string.Format("Slot {0} has already been filled!", argument);
throw new TemplateParseException(this.currentStartTag, msg);
}
// The slot starts at the next command.
TALSubProgram slot = new TALSubProgram(this.commandList.Count, this.endTagSymbol);
slotMap.Add(argument, slot);
// Update the command
TALCommand ci = new TALCommand();
ci.Tag = cmnd.Tag;
ci.ID = cmnd.ID;
ci.Attributes = new List<object>();
ci.Attributes.Add(macroName);
ci.Attributes.Add(slotMap);
ci.Attributes.Add(paramMap);
ci.Attributes.Add(endSymbol);
this.commandList[(int)ourMacroLocation] = ci;
return null;
}
// METAL compilation commands go here
protected TALCommand Compile_METAL_DEFINE_MACRO(string argument)
{
if (argument.Length == 0)
{
// No argument passed
string msg = "No argument passed! define-macro commands must be of the form: 'define-macro: name'";
throw new TemplateParseException(this.currentStartTag, msg);
}
// Check that the name of the macro is valid
if (Constants.METAL_NAME_REGEX.Match(argument).Length != argument.Length)
{
string msg = string.Format("Macro name {0} is invalid.", argument);
throw new TemplateParseException(this.currentStartTag, msg);
}
if (this.macroMap.ContainsKey(argument))
{
string msg = string.Format("Macro name {0} is already defined!", argument);
throw new TemplateParseException(this.currentStartTag, msg);
}
// The macro starts at the next command.
TALSubProgram macro = new TALSubProgram(this.commandList.Count, this.endTagSymbol);
this.macroMap.Add(argument, macro);
return null;
}