ENH: Separate option mapping from VS generators

Split cmVisualStudioGeneratorOptions core functionality out into a
base class cmIDEOptions.  It will be useful for other generators.

1 files changed, 178 insertions, 0 deletions

diff --git a/Source/cmIDEOptions.cxx b/Source/cmIDEOptions.cxx
new file mode 100644
index 0000000..c64eb93
--- /dev/null
+++ b/Source/cmIDEOptions.cxx
@@ -0,0 +1,178 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#include "cmIDEOptions.h"
+
+#include "cmSystemTools.h"
+
+//----------------------------------------------------------------------------
+cmIDEOptions::cmIDEOptions()
+{
+  this->DoingDefine = false;
+  this->AllowDefine = true;
+  this->AllowSlash = false;
+  for(int i=0; i < FlagTableCount; ++i)
+    {
+    this->FlagTable[i] = 0;
+    }
+}
+
+//----------------------------------------------------------------------------
+cmIDEOptions::~cmIDEOptions()
+{
+}
+
+//----------------------------------------------------------------------------
+void cmIDEOptions::HandleFlag(const char* flag)
+{
+  // If the last option was -D then this option is the definition.
+  if(this->DoingDefine)
+    {
+    this->DoingDefine = false;
+    this->Defines.push_back(flag);
+    return;
+    }
+
+  // Look for known arguments.
+  if(flag[0] == '-' || (this->AllowSlash && flag[0] == '/'))
+    {
+    // Look for preprocessor definitions.
+    if(this->AllowDefine && flag[1] == 'D')
+      {
+      if(flag[2] == '\0')
+        {
+        // The next argument will have the definition.
+        this->DoingDefine = true;
+        }
+      else
+        {
+        // Store this definition.
+        this->Defines.push_back(flag+2);
+        }
+      return;
+      }
+
+    // Look through the available flag tables.
+    bool flag_handled = false;
+    for(int i=0; i < FlagTableCount && this->FlagTable[i]; ++i)
+      {
+      if(this->CheckFlagTable(this->FlagTable[i], flag, flag_handled))
+        {
+        return;
+        }
+      }
+
+    // If any map entry handled the flag we are done.
+    if(flag_handled)
+      {
+      return;
+      }
+    }
+
+  // This option is not known.  Store it in the output flags.
+  this->StoreUnknownFlag(flag);
+}
+
+//----------------------------------------------------------------------------
+bool cmIDEOptions::CheckFlagTable(cmIDEFlagTable const* table,
+                                  const char* flag, bool& flag_handled)
+{
+  // Look for an entry in the flag table matching this flag.
+  for(cmIDEFlagTable const* entry = table; entry->IDEName; ++entry)
+    {
+    bool entry_found = false;
+    if(entry->special & cmIDEFlagTable::UserValue)
+      {
+      // This flag table entry accepts a user-specified value.  If
+      // the entry specifies UserRequired we must match only if a
+      // non-empty value is given.
+      int n = static_cast<int>(strlen(entry->commandFlag));
+      if(strncmp(flag+1, entry->commandFlag, n) == 0 &&
+         (!(entry->special & cmIDEFlagTable::UserRequired) ||
+          static_cast<int>(strlen(flag+1)) > n))
+        {
+        if(entry->special & cmIDEFlagTable::UserIgnored)
+          {
+          // Ignore the user-specified value.
+          this->FlagMap[entry->IDEName] = entry->value;
+          }
+        else if(entry->special & cmIDEFlagTable::SemicolonAppendable)
+          {
+          const char *new_value = flag+1+n;
+
+          std::map<cmStdString,cmStdString>::iterator itr;
+          itr = this->FlagMap.find(entry->IDEName);
+          if(itr != this->FlagMap.end())
+            {
+            // Append to old value (if present) with semicolons;
+            itr->second += ";";
+            itr->second += new_value;
+            }
+          else
+            {
+            this->FlagMap[entry->IDEName] = new_value;
+            }
+          }
+        else
+          {
+          // Use the user-specified value.
+          this->FlagMap[entry->IDEName] = flag+1+n;
+          }
+        entry_found = true;
+        }
+      }
+    else if(strcmp(flag+1, entry->commandFlag) == 0)
+      {
+      // This flag table entry provides a fixed value.
+      this->FlagMap[entry->IDEName] = entry->value;
+      entry_found = true;
+      }
+
+    // If the flag has been handled by an entry not requesting a
+    // search continuation we are done.
+    if(entry_found && !(entry->special & cmIDEFlagTable::Continue))
+      {
+      return true;
+      }
+
+    // If the entry was found the flag has been handled.
+    flag_handled = flag_handled || entry_found;
+    }
+
+  return false;
+}
+
+//----------------------------------------------------------------------------
+void cmIDEOptions::AddDefine(const std::string& def)
+{
+  this->Defines.push_back(def);
+}
+
+//----------------------------------------------------------------------------
+void cmIDEOptions::AddDefines(const char* defines)
+{
+  if(defines)
+    {
+    // Expand the list of definitions.
+    cmSystemTools::ExpandListArgument(defines, this->Defines);
+    }
+}
+
+//----------------------------------------------------------------------------
+void cmIDEOptions::AddFlag(const char* flag, const char* value)
+{
+  this->FlagMap[flag] = value;
+}