dll: WIP

src/dll/path.c

@@ -0,0 +1,56 @@
+/**
+ * @file dll/path.c
+ *
+ * @copyright 2015 Bill Zissimopoulos
+ */
+
+#include <dll/library.h>
+
+FSP_API VOID FspPathPrefix(PWSTR Path, PWSTR *PPrefix, PWSTR *PRemain)
+{
+    PWSTR Pointer;
+
+    for (Pointer = Path; *Pointer; Pointer++)
+        if (L'\\' == *Pointer)
+        {
+            *Pointer++ = L'\0';
+            for (; L'\\' == *Pointer; Pointer++)
+                ;
+            break;
+        }
+
+    *PPrefix = Path;
+    *PRemain = Pointer;
+}
+
+FSP_API VOID FspPathSuffix(PWSTR Path, PWSTR *PRemain, PWSTR *PSuffix)
+{
+    PWSTR Pointer, RemainEnd, Suffix = 0;
+
+    for (Pointer = Path; *Pointer;)
+        if (L'\\' == *Pointer)
+        {
+            RemainEnd = Pointer++;
+            for (; L'\\' == *Pointer; Pointer++)
+                ;
+            Suffix = Pointer;
+        }
+        else
+            Pointer++;
+
+    *PRemain = Path;
+    if (Path < Suffix)
+    {
+        *RemainEnd = L'\0';
+        *PSuffix = Suffix;
+    }
+    else
+        *PSuffix = Pointer;
+}
+
+FSP_API VOID FspPathCombine(PWSTR Prefix, PWSTR Suffix)
+{
+    for (; Prefix < Suffix; Prefix++)
+        if (L'\0' == *Prefix)
+            *Prefix = L'\\';
+}