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cleanup and refactor C# lexer classes

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This commit is contained in:
sinaioutlander
2020-11-11 00:16:01 +11:00
parent 9c077b3aa3
commit 70a1570441
13 changed files with 308 additions and 506 deletions
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39
src/Console/Lexer/KeywordMatch.cs
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@ -3,23 +3,22 @@ using UnityEngine;
namespace UnityExplorer.Console.Lexer
{
public sealed class KeywordMatch : Matcher
// I use two different KeywordMatch instances (valid and invalid).
// This class just contains common implementations.
public class KeywordMatch : Matcher
{
public string keywords;
public string[] Keywords;
public override Color HighlightColor => highlightColor;
public Color highlightColor;
private readonly HashSet<string> shortlist = new HashSet<string>();
private readonly Stack<string> removeList = new Stack<string>();
public string[] keywordCache = null;
public override bool IsImplicitMatch(InputLexer lexer)
public override bool IsImplicitMatch(CSharpLexer lexer)
{
BuildKeywordCache();
if (!char.IsWhiteSpace(lexer.Previous) &&
!lexer.IsSpecialSymbol(lexer.Previous, SpecialCharacterPosition.End))
!lexer.IsSpecialSymbol(lexer.Previous, DelimiterType.End))
{
return false;
}
@ -29,11 +28,11 @@ namespace UnityExplorer.Console.Lexer
int currentIndex = 0;
char currentChar = lexer.ReadNext();
for (int i = 0; i < keywordCache.Length; i++)
for (int i = 0; i < Keywords.Length; i++)
{
if (keywordCache[i][0] == currentChar)
if (Keywords[i][0] == currentChar)
{
shortlist.Add(keywordCache[i]);
shortlist.Add(Keywords[i]);
}
}
@ -54,7 +53,7 @@ namespace UnityExplorer.Console.Lexer
currentIndex++;
if (char.IsWhiteSpace(currentChar) ||
lexer.IsSpecialSymbol(currentChar, SpecialCharacterPosition.Start))
lexer.IsSpecialSymbol(currentChar, DelimiterType.Start))
{
RemoveLongStrings(currentIndex);
lexer.Rollback(1);
@ -94,23 +93,5 @@ namespace UnityExplorer.Console.Lexer
shortlist.Remove(removeList.Pop());
}
}
private void BuildKeywordCache()
{
if (keywordCache == null)
{
string[] kwSplit = keywords.Split(' ');
List<string> list = new List<string>();
foreach (string kw in kwSplit)
{
if (!string.IsNullOrEmpty(kw) && kw.Length > 0)
{
list.Add(kw);
}
}
keywordCache = list.ToArray();
}
}
}
}