94 lines
2.8 KiB
C#
94 lines
2.8 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Convention.Symbolization.Internal
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{
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public class SymbolizationReader
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{
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private string buffer = "";
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private int lineContext = 0;
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private bool isOutOfStringline = true;
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public Dictionary<int, List<Variable>> ScriptWords = new() { { 0, new() } };
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private static HashSet<char> ControllerCharSet = new()
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{
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'{','}','(',')','[',']',
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'+','-','*','/','%',
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'=',
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'!','<','>','&','|',
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'^',
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':',',','.','?',/*'\'','"',*/
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'@','#','$',
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};
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public void ReadChar(char ch)
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{
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if (isOutOfStringline)
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{
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if (ControllerCharSet.Contains(ch))
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CompleteSingleSymbol(ch);
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else if (char.IsWhiteSpace(ch) || ch == '\n' || ch == '\r' || ch == '\t')
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CompleteWord();
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else if (buffer.Length == 0 && ch == '"')
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BeginString();
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else if (ch == ';')
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CompleteLine();
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else if (char.IsLetter(ch) || char.IsDigit(ch))
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PushChar(ch);
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else
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throw new NotImplementedException($"{lineContext+1} line, {buffer} + <{ch}> not implemented");
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}
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else
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{
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if ((buffer.Length > 0 && buffer.Last() == '\\') || ch != '"')
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PushChar(ch);
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else if (ch == '"')
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EndString();
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else
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throw new NotImplementedException($"{lineContext+1} line, \"{buffer}\" + \'{ch}\' not implemented");
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}
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}
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void CompleteSingleSymbol(char ch)
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{
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CompleteWord();
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buffer = ch.ToString();
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CompleteWord();
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}
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void PushChar(char ch)
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{
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buffer += ch;
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}
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void CompleteWord()
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{
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if (buffer.Length > 0)
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{
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ScriptWords[lineContext].Add(new ScriptWordVariable(buffer));
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buffer = "";
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}
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}
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void CompleteLine()
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{
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CompleteWord();
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ScriptWords[lineContext].Add(new ScriptWordVariable(";"));
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lineContext++;
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ScriptWords.Add(lineContext, new());
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}
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void BeginString()
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{
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if (buffer.Length > 0)
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throw new InvalidGrammarException($"String must start with nothing: {buffer}");
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isOutOfStringline = false;
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}
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void EndString()
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{
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isOutOfStringline = true;
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CompleteWord();
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}
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}
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}
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