PreProcessor: extracted trim() to utils.{cpp|h}

Author: firewave

lib/preprocessor.cpp

@@ -43,20 +43,6 @@ static bool sameline(const simplecpp::Token *tok1, const simplecpp::Token *tok2)
     return tok1 && tok2 && tok1->location.sameline(tok2->location);
 }
 
-/**
- * Remove heading and trailing whitespaces from the input parameter.
- * If string is all spaces/tabs, return empty string.
- * @param s The string to trim.
- */
-static std::string trim(const std::string& s)
-{
-    const std::string::size_type beg = s.find_first_not_of(" \t");
-    if (beg == std::string::npos)
-        return "";
-    const std::string::size_type end = s.find_last_not_of(" \t");
-    return s.substr(beg, end - beg + 1);
-}
-
 Directive::Directive(std::string _file, const int _linenr, const std::string &_str) :
     file(std::move(_file)),
     linenr(_linenr),

lib/utils.cpp

@@ -129,3 +129,12 @@ void strTolower(std::string& str)
         return std::tolower(c);
     });
 }
+
+std::string trim(const std::string& s)
+{
+    const std::string::size_type beg = s.find_first_not_of(" \t");
+    if (beg == std::string::npos)
+        return "";
+    const std::string::size_type end = s.find_last_not_of(" \t");
+    return s.substr(beg, end - beg + 1);
+}

lib/utils.h

@@ -347,6 +347,13 @@ static inline const char* bool_to_string(bool b)
     return b ? "true" : "false";
 }
 
+/**
+ * Remove heading and trailing whitespaces from the input parameter.
+ * If string is all spaces/tabs, return empty string.
+ * @param s The string to trim.
+ */
+CPPCHECKLIB std::string trim(const std::string& s);
+
 namespace cppcheck
 {
     NORETURN inline void unreachable()