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Simplify keyword highlighting

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This commit is contained in:
Sinai 2021-05-10 23:24:52 +10:00
parent 18d2518231
commit 2efce9eb0e
1 changed files with 4 additions and 17 deletions
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21
src/UI/CSConsole/Lexer/KeywordLexer.cs
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@ -6,7 +6,8 @@ namespace UnityExplorer.UI.CSharpConsole.Lexers
{ {
public class KeywordLexer : Lexer public class KeywordLexer : Lexer
{ {
private readonly string[] Keywords = new[] { "add", "as", "ascending", "await", "bool", "break", "by", "byte", private readonly HashSet<string> keywords = new HashSet<string>
{ "add", "as", "ascending", "await", "bool", "break", "by", "byte",
"case", "catch", "char", "checked", "const", "continue", "decimal", "default", "descending", "do", "dynamic", "case", "catch", "char", "checked", "const", "continue", "decimal", "default", "descending", "do", "dynamic",
"else", "equals", "false", "finally", "float", "for", "foreach", "from", "global", "goto", "group", "if", "in", "else", "equals", "false", "finally", "float", "for", "foreach", "from", "global", "goto", "group", "if", "in",
"int", "into", "is", "join", "let", "lock", "long", "new", "null", "object", "on", "orderby", "out", "ref", "int", "into", "is", "join", "let", "lock", "long", "new", "null", "object", "on", "orderby", "out", "ref",
@ -16,19 +17,6 @@ namespace UnityExplorer.UI.CSharpConsole.Lexers
"namespace", "operator", "override", "params", "private", "protected", "public", "using", "partial", "readonly", "namespace", "operator", "override", "params", "private", "protected", "public", "using", "partial", "readonly",
"sealed", "set", "static", "struct", "this", "unchecked", "unsafe", "value", "virtual", "volatile", "void" }; "sealed", "set", "static", "struct", "this", "unchecked", "unsafe", "value", "virtual", "volatile", "void" };
private readonly Dictionary<int, HashSet<string>> keywordsByLength = new Dictionary<int, HashSet<string>>();
public KeywordLexer()
{
foreach (var kw in Keywords)
{
if (!keywordsByLength.ContainsKey(kw.Length))
keywordsByLength.Add(kw.Length, new HashSet<string>());
keywordsByLength[kw.Length].Add(kw);
}
}
protected override Color HighlightColor => new Color(0.33f, 0.61f, 0.83f, 1.0f); protected override Color HighlightColor => new Color(0.33f, 0.61f, 0.83f, 1.0f);
public override bool TryMatchCurrent(LexerBuilder lexer) public override bool TryMatchCurrent(LexerBuilder lexer)
@ -36,12 +24,10 @@ namespace UnityExplorer.UI.CSharpConsole.Lexers
if (!lexer.IsDelimiter(lexer.Previous, true)) if (!lexer.IsDelimiter(lexer.Previous, true))
return false; return false;
int len = 0;
var sb = new StringBuilder(); var sb = new StringBuilder();
while (!lexer.EndOfInput) while (!lexer.EndOfInput)
{ {
sb.Append(lexer.Current); sb.Append(lexer.Current);
len++;
var next = lexer.PeekNext(); var next = lexer.PeekNext();
if (lexer.IsDelimiter(next, true)) if (lexer.IsDelimiter(next, true))
{ {
@ -49,7 +35,8 @@ namespace UnityExplorer.UI.CSharpConsole.Lexers
break; break;
} }
} }
if (keywordsByLength.TryGetValue(len, out var keywords) && keywords.Contains(sb.ToString()))
if (keywords.Contains(sb.ToString()))
{ {
lexer.Commit(); lexer.Commit();
return true; return true;