1 files changed, 155 insertions, 0 deletions
diff --git a/opengl/tools/glgen/src/CFunc.java b/opengl/tools/glgen/src/CFunc.java
new file mode 100644
index 0000000..0794f41
--- /dev/null
+++ b/opengl/tools/glgen/src/CFunc.java
@@ -0,0 +1,155 @@
+
+import java.util.*;
+
+public class CFunc {
+
+    String original;
+
+    CType ftype;
+    String fname;
+
+    List<String> argNames = new ArrayList<String>();
+    List<CType> argTypes = new ArrayList<CType>();
+
+    boolean hasPointerArg = false;
+    boolean hasTypedPointerArg = false;
+
+    public CFunc(String original) {
+        this.original = original;
+    }
+
+    public String getOriginal() {
+        return original;
+    }
+
+    public void setName(String fname) {
+        this.fname = fname;
+    }
+
+    public String getName() {
+        return fname;
+    }
+
+    public void setType(CType ftype) {
+        this.ftype = ftype;
+    }
+
+    public CType getType() {
+        return ftype;
+    }
+
+    public void addArgument(String argName, CType argType) {
+        argNames.add(argName);
+        argTypes.add(argType);
+
+        if (argType.isPointer()) {
+            hasPointerArg = true;
+        }
+        if (argType.isTypedPointer()) {
+            hasTypedPointerArg = true;
+        }
+    }
+
+    public int getNumArgs() {
+        return argNames.size();
+    }
+
+    public int getArgIndex(String name) {
+        int len = argNames.size();
+        for (int i = 0; i < len; i++) {
+            if (name.equals(argNames.get(i))) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    public String getArgName(int index) {
+        return argNames.get(index);
+    }
+
+    public CType getArgType(int index) {
+        return argTypes.get(index);
+    }
+
+    public boolean hasPointerArg() {
+        return hasPointerArg;
+    }
+
+    public boolean hasTypedPointerArg() {
+        return hasTypedPointerArg;
+    }
+
+    public String toString() {
+        String s =  "Function " + fname + " returns " + ftype + ": ";
+        for (int i = 0; i < argNames.size(); i++) {
+            if (i > 0) {
+                s += ", ";
+            }
+            s += argTypes.get(i) + " " + argNames.get(i);
+        }
+        return s;
+    }
+
+    public static CFunc parseCFunc(String s) {
+        CFunc cfunc = new CFunc(s);
+        String[] tokens = s.split("\\s");
+
+        int i = 0;
+        CType ftype = new CType();
+        String ftypeName = tokens[i++];
+        if (ftypeName.equals("const")) {
+            ftype.setIsConst(true);
+            ftypeName = tokens[i++];
+        }
+        ftype.setBaseType(ftypeName);
+
+        String fname = tokens[i++];
+        if (fname.equals("*")) {
+            ftype.setIsPointer(true);
+            fname = tokens[i++];
+        }
+	
+        cfunc.setName(fname);
+        cfunc.setType(ftype);
+	
+        while (i < tokens.length) {
+            String tok = tokens[i++];
+	    
+            if (tok.equals("(")) {
+                continue;
+            }
+            if (tok.equals(")")) {
+                break;
+            }
+
+            CType argType = new CType();
+	    
+            String argTypeName = tok;
+            String argName = "";
+	    
+            if (argTypeName.equals("const")) {
+                argType.setIsConst(true);
+                argTypeName = tokens[i++];
+            }
+            argType.setBaseType(argTypeName);
+
+            if (argTypeName.equals("void")) {
+                break;
+            }
+	    
+            argName = tokens[i++];
+            if (argName.startsWith("*")) {
+                argType.setIsPointer(true);
+                argName = argName.substring(1, argName.length());
+            }
+            if (argName.endsWith(",")) {
+                argName = argName.substring(0, argName.length() - 1);
+            }
+	    
+            cfunc.addArgument(argName, argType);
+        }
+
+        return cfunc;
+    }
+}