Add in the 1st version of ECP.

[mirror_edk2.git] / EdkCompatibilityPkg / Other / Maintained / Tools / Pccts / h / DLG_stream_input.h

diff --git a/EdkCompatibilityPkg/Other/Maintained/Tools/Pccts/h/DLG_stream_input.h b/EdkCompatibilityPkg/Other/Maintained/Tools/Pccts/h/DLG_stream_input.h
new file mode 100644 (file)
index 0000000..39892bb
--- /dev/null
+++ b/EdkCompatibilityPkg/Other/Maintained/Tools/Pccts/h/DLG_stream_input.h
@@ -0,0 +1,98 @@
+\r
+/************************************************************/\r
+/*                              */\r
+/*    Predefined char stream: Input from (c++) stream.  */\r
+/*                              */\r
+/* By Hubert Holin (Hubert.Holin@Bigfoot.com), 1998.    */\r
+/*                              */\r
+/* This is completely free stuff, do whatever you want with  */\r
+/* it (but then, I will take no responsability for whatever  */\r
+/* may happen if you do either... caveat emptor!).      */\r
+/*                              */\r
+/************************************************************/\r
+\r
+#ifndef _DLG_STREAM_INPUT_H\r
+#define _DLG_STREAM_INPUT_H\r
+\r
+#include "pccts_istream.h"\r
+\r
+PCCTS_NAMESPACE_STD\r
+\r
+#ifndef DLGX_H\r
+#include "DLexerBase.h"\r
+#endif\r
+\r
+\r
+// NOTES:  The semantics of the copy constructor\r
+//      and the affectation operator may be unwaranted...\r
+//      and the stream may not be reset.\r
+//\r
+//      It would have been so much nicer for nextChar()\r
+//      to throw (of for the DLGInputStream to change status)\r
+//      upon hiting EOF than to return an "int"...\r
+\r
+template  <\r
+        class E,\r
+        class T = ::std::char_traits<E>\r
+      >\r
+class DLG_stream_input : public DLGInputStream\r
+{\r
+public:\r
+  \r
+            DLG_stream_input(::std::basic_istream<E,T> * p_input_stream)\r
+  :  input(p_input_stream)\r
+  {\r
+    // nothing to do!\r
+  };\r
+  \r
+            DLG_stream_input(const DLG_stream_input & a_recopier)\r
+  :  input(a_recopier.input)\r
+  {\r
+    // nothing to do!\r
+  };\r
+  \r
+  virtual        ~DLG_stream_input()\r
+  {\r
+    this->purge();  // bloody templarized lookup...\r
+  };\r
+  \r
+  DLG_stream_input  operator = (const DLG_stream_input & a_affecter)\r
+  {\r
+    if (this != &a_affecter)\r
+    {\r
+      input = a_affecter.input;\r
+    }\r
+\r
+    return(*this);\r
+  };\r
+  \r
+  virtual int      nextChar()\r
+  {\r
+    E  extracted_stuff;\r
+    \r
+    input->get(extracted_stuff);\r
+    \r
+    if  (*input)\r
+    {\r
+      return(int(extracted_stuff));\r
+    }\r
+    else\r
+    {\r
+      return(EOF);\r
+    }\r
+  };\r
+  \r
+protected:\r
+  \r
+  ::std::basic_istream<E,T> *  input;\r
+  \r
+private:\r
+  \r
+  void  purge()\r
+  {\r
+    // nothing to do!\r
+  };\r
+};\r
+\r
+#endif /* _DLG_STREAM_INPUT_H */\r
+\r