/// <summary>
/// Translates the source using <paramref name="Resultbuilder"/> to output the result,
/// <paramref name="outputMessage"/> and <paramref name="outputMessageAndPosition"/>
/// to output additional information.
/// </summary>
/// <param name="Resultbuilder"></param>
/// <param name="SourceReader">The source</param>
/// <param name="outputMessage">A method to output messages </param>
/// <param name="outputMessageAndPosition">A method to output messages with an associated poition in the source</param>
public static void Execute(
StringBuilder Resultbuilder,
SpanReaderWithCharacterAndLineCounter SourceReader,
Action <MessageTypeOrDestinationEnum, String> outputMessage,
Action <MessageTypeOrDestinationEnum, String, Int32> outputMessageAndPosition,
out Int32 sumOfConflictsNotSolvedByExplicitPriority)
=> Go(Resultbuilder, SourceReader, outputMessage, outputMessageAndPosition,
out sumOfConflictsNotSolvedByExplicitPriority);
public P1bLexer(SpanReaderWithCharacterAndLineCounter sourceReader,
StackOfMultiTypeElements attributeStack, Stack <Int32> stateStack)
: base(attributeStack, stateStack)
{
Source = sourceReader.Source;
inputClassifier = new P1cInputClassifier(sourceReader, attributeStack);
LexerTextPos = 0;
Accepted = true;
}
/* TODO Grammlator:
*
* Compare with other implementations: https://en.wikipedia.org/wiki/Comparison_of_parser_generators
*
* Allow multile grammar parts in the same file
*
* Test dynamic priorities and provide access to context attributes
*
* Use names for labels instead of numbers so that small grammar changes do not cause lots of changed labels
*
*
* */
private static void Go(
StringBuilder Resultbuilder,
SpanReaderWithCharacterAndLineCounter SourceReader,
Action <MessageTypeOrDestinationEnum, String> outputMessage,
Action <MessageTypeOrDestinationEnum, String, Int32> outputMessageAndPos,
out Int32 sumOfConflictsNotSolvedByExplicitPriority
)
{
// ----- Set initial values
ResetGlobalVariables(outputMessage, outputMessageAndPos);
var SymbolDictionary = new Dictionary <UnifiedString, Symbol>(1000);
// ----- Copy input up to and including line starting with "#region grammar"
Int32 StartOfGrammlatorLines =
SourceReader.ReadAndCopyUntilMarkedLineFound(Resultbuilder, copy: true, copyLineWithMarkers: true,
RegionBegin.Value, RegionGrammarMarker.Value);
if (StartOfGrammlatorLines >= 0)
{
Int32 StartOfRegion = StartOfGrammlatorLines
+ SourceReader.Source.Span[StartOfGrammlatorLines..].IndexOf('#');
{ //GrammlatorInput<ClassifierResult> {
// TODO use the Rune struct https://docs.microsoft.com/en-gb/dotnet/api/system.text.rune?view=netcore-3.1
// and the EnumerateRunes Method
// https://docs.microsoft.com/en-gb/dotnet/api/system.memoryextensions.enumeraterunes?view=netcore-3.1
// foreach (Rune r in s){}
// or explicit call of iterators https://docs.microsoft.com/de-de/dotnet/csharp/iterators
/// <summary>
/// Constructor
/// </summary>
/// <param name="SourceReader">the reader provides "ReadOnlyMemory<Char> ReadLine()" and "int LineNumber", "int Position" "int EoLLength"</param>
/// <param name="attributeStack">The <paramref name="attributeStack"/> is used to store the attributes of the recognized character</param>
public P1cInputClassifier(
SpanReaderWithCharacterAndLineCounter SourceReader,
StackOfMultiTypeElements attributeStack)
{
this.SourceReader = SourceReader;
this._a = attributeStack;
Accepted = true;
InputLine = ReadOnlyMemory <Char> .Empty;
CurrentColumn = InputLine.Length + 1; // Alike end of line had been recognized and accepted
StartOf1stGrammlatorGeneratedLine = -1;
// Grammlator parameterization
GrammarlineMarker = GlobalSettings.CSharpGrammarLineMarker.Value; // = "//|"
CSharpCommentlineMarker = GlobalSettings.CSharpCommentlineMarker.Value; // = "//"
CSharpPragma = GlobalSettings.CSharpPragmaMarker.Value; // = "#pragma"
for (int i = 0; i < ClassifierTable.Length; i++)
{
ClassifierTable[i] = GetResultFromChar((char)i);
}
}
