Prompt now supports customization. Implementation is based on customization string with escape sequences. The prompt currently recognizes only one sequence in the customization string, \w - the current path.

svn path=/trunk/; revision=1799

rosapps/sysutils/regexpl/Prompt.cpp

@@ -0,0 +1,94 @@
+/* $Id: Prompt.cpp,v 1.1 2001/04/16 04:53:31 narnaoud Exp $
+ *
+ * regexpl - Console Registry Explorer
+ *
+ * Copyright (C) 2000,2001 Nedko Arnaoudov <nedkohome@atia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+// prompt for Registry Explorer
+
+#include "ph.h"
+#include "Prompt.h"
+
+#define ESCAPE_CHAR                        _T("\\")
+#define CURRENT_PATH_ALIAS_CHAR            _T("w")
+#define CURRENT_PATH_ALIAS                 ESCAPE_CHAR CURRENT_PATH_ALIAS_CHAR
+#define DEFAULT_PROMPT                     CURRENT_PATH_ALIAS _T("\n# ")
+
+CPrompt::CPrompt(CRegistryTree& rTree, HRESULT& rhr):m_rTree(rTree)
+{
+  m_pszPrompt = new TCHAR[_tcslen(DEFAULT_PROMPT)+1];
+  if (!m_pszPrompt)
+  {
+    rhr = E_OUTOFMEMORY;
+    return;
+  }
+
+  _tcscpy(m_pszPrompt,DEFAULT_PROMPT);
+}
+
+HRESULT CPrompt::SetPrompt(LPCTSTR pszPrompt)
+{
+  if (!pszPrompt)
+  {
+    ASSERT(FALSE);
+    return E_UNEXPECTED;
+  }
+
+  m_pszPrompt = new TCHAR[_tcslen(pszPrompt)+1];
+  if (!m_pszPrompt)
+    return E_OUTOFMEMORY;
+
+  _tcscpy(m_pszPrompt,pszPrompt);
+
+  return S_OK;
+}
+
+CPrompt::~CPrompt()
+{
+  if (m_pszPrompt)
+    delete m_pszPrompt;
+}
+
+void CPrompt::ShowPrompt(CConsole &rConsole)
+{
+  TCHAR *pch = m_pszPrompt;
+  TCHAR Buffer[2] = " ";
+
+  const TCHAR *pszCurrentPath;
+
+  while (*pch)
+  {
+    if (_tcsncmp(pch,CURRENT_PATH_ALIAS,_tcslen(CURRENT_PATH_ALIAS)) == 0)
+    {
+      pszCurrentPath = m_rTree.GetCurrentPath();
+      rConsole.Write(pszCurrentPath?pszCurrentPath:_T("NULL (Internal Error)"));
+      pch += _tcslen(CURRENT_PATH_ALIAS);
+    }
+    else
+    {
+      Buffer[0] = *pch++;
+      rConsole.Write(Buffer);
+    }
+  }
+}
+
+LPCTSTR CPrompt::GetDefaultPrompt()
+{
+  return DEFAULT_PROMPT;
+}

rosapps/sysutils/regexpl/Prompt.h

@@ -0,0 +1,21 @@
+#ifndef PROMPT_H__d2442d41_b6b3_47b5_8cb8_e6c597e570b9__INCLUDED
+#define PROMPT_H__d2442d41_b6b3_47b5_8cb8_e6c597e570b9__INCLUDED
+
+#include "RegistryTree.h"
+#include "Console.h"
+
+class CPrompt
+{
+public:
+  CPrompt(CRegistryTree& rTree, HRESULT& rhr);
+  ~CPrompt();
+  HRESULT SetPrompt(LPCTSTR pszPrompt);
+  void ShowPrompt(CConsole &rConsole);
+  static LPCTSTR GetDefaultPrompt();
+
+private:
+  CRegistryTree& m_rTree;
+  LPTSTR m_pszPrompt;
+};
+
+#endif // #ifndef PROMPT_H__d2442d41_b6b3_47b5_8cb8_e6c597e570b9__INCLUDED