Add vmt value type 'matrix'

Author: Tewan

src/language/lang-vmt.ts

@@ -78,6 +78,7 @@ export class VmtSemanticTokenProvider extends KvTokensProviderBase {
         case "scalar": this.processValueScalar(kv, contentRange, tokensBuilder, kvDoc); break;
         case "texture": this.processValueTexture(kv, contentRange, tokensBuilder, kvDoc); break;
         case "color": this.processValueColor(kv, contentRange, tokensBuilder, kvDoc); break;
+        case "matrix": this.processValueMatrix(kv, contentRange, tokensBuilder, kvDoc); break;
         case "env_cubemap": this.processValueCubemap(kv, contentRange, tokensBuilder, kvDoc); break;
 
         case "string": 
@@ -132,6 +133,15 @@ export class VmtSemanticTokenProvider extends KvTokensProviderBase {
         tokensBuilder.push(range, "string");
     }
 
+    processValueMatrix(kv: KeyValue, range: Range, tokensBuilder: SemanticTokensBuilder, kvDoc: KeyvalueDocument): void {
+
+        // Don't put any semantic tokens here. The textmate highlighting is good enough. We only validate the input and provide warning messages
+        const matrixMatches = getMatrixMatches(kv.value);
+        if(!matrixMatches.validFormat) {
+            this.diagnostics.push(new Diagnostic(range, "Invalid matrix format.", DiagnosticSeverity.Warning));
+        }
+    }
+
     processValueColor(kv: KeyValue, range: Range, tokensBuilder: SemanticTokensBuilder, kvDoc: KeyvalueDocument): void {
 
         // Don't put any semantic tokens here. The textmate highlighting is good enough. We only validate the input and provide warning messages
@@ -327,6 +337,21 @@ export class ShaderParamColorsProvider implements DocumentColorProvider {
 
 }
 
+function getMatrixMatches(matrixString: string): { validFormat: boolean, values: number[] } {
+    const matches = matrixString.match(/ *\[ ((\d+(\.\d+)?|\.\d+) ?|)+\] */);
+    if(!matches) return {
+        validFormat: false,
+        values: []
+    };
+
+    const vals = matches[1].split(" ").map(v => parseFloat(v));
+    
+    return {
+        validFormat: true,
+        values: vals
+    };
+}
+
 function getColorMatches(colorString: string): { validFormat: boolean, outOfBounds: boolean, color: Color | null, matches: RegExpMatchArray | null }  {
     const matches = colorString.match(/ *\[ *(0?\.\d+|1|0) (0?\.\d+|1|0) (0?\.\d+|1|0) *\] */);
     if(!matches) return {