Add API Framework Revel Source Files

[iec.git] / src / foundation / api / revel / namespace.go

diff --git a/src/foundation/api/revel/namespace.go b/src/foundation/api/revel/namespace.go
new file mode 100644 (file)
index 0000000..9f66cf4
--- /dev/null
+++ b/src/foundation/api/revel/namespace.go
@@ -0,0 +1,37 @@
+package revel
+
+import (
+       "bytes"
+       "regexp"
+)
+
+// Module matching template syntax allows for modules to replace this text with the name of the module declared on import
+// this allows the reverse router to use correct syntax
+// Match _LOCAL_.static or  _LOCAL_|
+var namespaceReplacement = regexp.MustCompile(`(_LOCAL_)(\.(.*?))?\\`)
+
+// Function to replace the bytes data that may match the _LOCAL_ namespace specifier,
+// the replacement will be the current module.Name
+func namespaceReplace(fileBytes []byte, module *Module) []byte {
+       newBytes, lastIndex := &bytes.Buffer{}, 0
+       matches := namespaceReplacement.FindAllSubmatchIndex(fileBytes, -1)
+       for _, match := range matches {
+               // Write up to first bytes
+               newBytes.Write(fileBytes[lastIndex:match[0]])
+               // skip ahead index to match[1]
+               lastIndex = match[3]
+               if match[4] > 0 {
+                       // This match includes the module name as imported by the module
+                       // We could transform the module name if it is different..
+                       // For now leave it the same
+                       // so _LOCAL_.static| becomes static|
+                       lastIndex++
+               } else {
+                       // Inject the module name
+                       newBytes.Write([]byte(module.Name))
+               }
+       }
+       // Write remainder of document
+       newBytes.Write(fileBytes[lastIndex:])
+       return newBytes.Bytes()
+}