VS: Support mapping flags with values following separately (#14858)

Add a "UserFollowing" special flag table entry indicator to say that a
flag expects a value in a following argument.  Teach cmIDEOptions to
handle such flags.

1 files changed, 19 insertions, 2 deletions

diff --git a/Source/cmIDEOptions.cxx b/Source/cmIDEOptions.cxx
index eda1ef6..1f3c066 100644
--- a/Source/cmIDEOptions.cxx
+++ b/Source/cmIDEOptions.cxx
@@ -19,6 +19,7 @@ cmIDEOptions::cmIDEOptions()
   this->DoingDefine = false;
   this->AllowDefine = true;
   this->AllowSlash = false;
+  this->DoingFollowing = 0;
   for(int i=0; i < FlagTableCount; ++i)
     {
     this->FlagTable[i] = 0;
@@ -41,6 +42,14 @@ void cmIDEOptions::HandleFlag(const char* flag)
     return;
     }
 
+  // If the last option expected a following value, this is it.
+  if(this->DoingFollowing)
+    {
+    this->FlagMapUpdate(this->DoingFollowing, flag);
+    this->DoingFollowing = 0;
+    return;
+    }
+
   // Look for known arguments.
   if(flag[0] == '-' || (this->AllowSlash && flag[0] == '/'))
     {
@@ -105,8 +114,16 @@ bool cmIDEOptions::CheckFlagTable(cmIDEFlagTable const* table,
       }
     else if(strcmp(flag+1, entry->commandFlag) == 0)
       {
-      // This flag table entry provides a fixed value.
-      this->FlagMap[entry->IDEName] = entry->value;
+      if(entry->special & cmIDEFlagTable::UserFollowing)
+        {
+        // This flag expects a value in the following argument.
+        this->DoingFollowing = entry;
+        }
+      else
+        {
+        // This flag table entry provides a fixed value.
+        this->FlagMap[entry->IDEName] = entry->value;
+        }
       entry_found = true;
       }