cmOutputConverter: Let EscapeForCMake accept a cm::string_view

Source/cmOutputConverter.cxx

@@ -120,23 +120,23 @@ std::string cmOutputConverter::EscapeForShell(const std::string& str,
   return Shell__GetArgument(str.c_str(), flags);
 }
 
-std::string cmOutputConverter::EscapeForCMake(const std::string& str)
+std::string cmOutputConverter::EscapeForCMake(cm::string_view str)
 {
   // Always double-quote the argument to take care of most escapes.
   std::string result = "\"";
-  for (const char* c = str.c_str(); *c; ++c) {
-    if (*c == '"') {
+  for (const char c : str) {
+    if (c == '"') {
       // Escape the double quote to avoid ending the argument.
       result += "\\\"";
-    } else if (*c == '$') {
+    } else if (c == '$') {
       // Escape the dollar to avoid expanding variables.
       result += "\\$";
-    } else if (*c == '\\') {
+    } else if (c == '\\') {
       // Escape the backslash to avoid other escapes.
       result += "\\\\";
     } else {
       // Other characters will be parsed correctly.
-      result += *c;
+      result += c;
     }
   }
   result += "\"";

Source/cmOutputConverter.h

@@ -5,9 +5,10 @@
 
 #include "cmConfigure.h" // IWYU pragma: keep
 
-#include <string>
-
 #include "cmStateSnapshot.h"
+#include "cm_string_view.hxx"
+
+#include <string>
 
 class cmState;
 
@@ -76,7 +77,7 @@ public:
                              bool forEcho = false,
                              bool useWatcomQuote = false) const;
 
-  static std::string EscapeForCMake(const std::string& str);
+  static std::string EscapeForCMake(cm::string_view str);
 
   /** Compute an escaped version of the given argument for use in a
       windows shell.  */