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diff --git a/labb5/lib/StanfordCPPLib/strlib.h b/labb5/lib/StanfordCPPLib/strlib.h
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+++ b/labb5/lib/StanfordCPPLib/strlib.h
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+/*
+ * File: strlib.h
+ * --------------
+ * This file exports several useful string functions that are not
+ * included in the C++ string library.
+ */
+
+#ifndef _strlib_h
+#define _strlib_h
+
+#include <iostream>
+#include <string>
+
+/*
+ * Function: integerToString
+ * Usage: string s = integerToString(n);
+ * -------------------------------------
+ * Converts an integer into the corresponding string of digits.
+ * For example, calling <code>integerToString(123)</code> returns
+ * the string <code>"123"</code>.
+ */
+
+std::string integerToString(int n);
+
+/*
+ * Function: stringToInteger
+ * Usage: int n = stringToInteger(str);
+ * ------------------------------------
+ * Converts a string of digits into an integer.  If the string is not a
+ * legal integer or contains extraneous characters other than whitespace,
+ * <code>stringToInteger</code> calls <code>error</code> with an
+ * appropriate message.
+ */
+
+int stringToInteger(std::string str);
+
+/*
+ * Function: realToString
+ * Usage: string s = realToString(d);
+ * ----------------------------------
+ * Converts a floating-point number into the corresponding string form.
+ * For example, calling <code>realToString(23.45)</code> returns
+ * the string <code>"23.45"</code>.
+ */
+
+std::string realToString(double d);
+
+/*
+ * Function: stringToReal
+ * Usage: double d = stringToReal(str);
+ * ------------------------------------
+ * Converts a string representing a real number into its corresponding
+ * value.  If the string is not a legal floating-point number or contains
+ * extraneous characters other than whitespace, <code>stringToReal</code>
+ * calls <code>error</code> with an appropriate message.
+ */
+
+double stringToReal(std::string str);
+
+/*
+ * Function: toUpperCase
+ * Usage: string s = toUpperCase(str);
+ * -----------------------------------
+ * Returns a new string in which all lowercase characters have been converted
+ * into their uppercase equivalents.
+ */
+
+std::string toUpperCase(std::string str);
+
+/*
+ * Function: toLowerCase
+ * Usage: string s = toLowerCase(str);
+ * -----------------------------------
+ * Returns a new string in which all uppercase characters have been converted
+ * into their lowercase equivalents.
+ */
+
+std::string toLowerCase(std::string str);
+
+/*
+ * Function: equalsIgnoreCase
+ * Usage: if (equalsIgnoreCase(s1, s2)) ...
+ * ----------------------------------------
+ * Returns <code>true</code> if <code>s1</code> and <code>s2</code> are
+ * equal discounting differences in case.
+ */
+
+bool equalsIgnoreCase(std::string s1, std::string s2);
+
+/*
+ * Function: startsWith
+ * Usage: if (startsWith(str, prefix)) ...
+ * ---------------------------------------
+ * Returns <code>true</code> if the string <code>str</code> starts with
+ * the specified prefix, which may be either a string or a character.
+ */
+
+bool startsWith(std::string str, std::string prefix);
+bool startsWith(std::string str, char prefix);
+
+/*
+ * Function: endsWith
+ * Usage: if (endsWith(str, suffix)) ...
+ * -------------------------------------
+ * Returns <code>true</code> if the string <code>str</code> ends with
+ * the specified suffix, which may be either a string or a character.
+ */
+
+bool endsWith(std::string str, std::string suffix);
+bool endsWith(std::string str, char suffix);
+
+/*
+ * Function: trim
+ * Usage: string trimmed = trim(str);
+ * ----------------------------------
+ * Returns a new string after removing any whitespace characters
+ * from the beginning and end of the argument.
+ */
+
+std::string trim(std::string str);
+
+/* Private section */
+
+/**********************************************************************/
+/* Note: Everything below this point in the file is logically part    */
+/* of the implementation and should not be of interest to clients.    */
+/**********************************************************************/
+
+/*
+ * Friend function: writeQuotedString
+ * Usage: writeQuotedString(outfile, str, forceQuotes);
+ * ----------------------------------------------------
+ * Writes the string str to outfile surrounded by double quotes, converting
+ * special characters to escape sequences, as necessary.  If the optional
+ * parameter forceQuotes is explicitly set to false, quotes are included
+ * in the output only if necessary.
+ */
+
+void writeQuotedString(std::ostream & os, const std::string & str,
+                       bool forceQuotes = true);
+
+/*
+ * Friend function: readQuotedString
+ * Usage: readQuotedString(infile, str);
+ * -------------------------------------
+ * Reads the next string from infile into the reference parameter str.
+ * If the first character (other than whitespace) is either a single
+ * or a double quote, this function reads characters up to the
+ * matching quote, processing standard escape sequences as it goes.
+ * If not, readString reads characters up to any of the characters
+ * in the string STRING_DELIMITERS in the implementation file.
+ */
+
+void readQuotedString(std::istream & is, std::string & str);
+
+/*
+ * Friend function: stringNeedsQuoting
+ * Usage: if (stringNeedsQuoting(str)) ...
+ * ---------------------------------------
+ * Checks whether the string needs quoting in order to be read correctly.
+ */
+
+bool stringNeedsQuoting(const std::string & str);
+
+/*
+ * Friend function: writeGenericValue
+ * Usage: writeGenericValue(os, value, forceQuotes);
+ * -------------------------------------------------
+ * Writes a generic value to the output stream.  If that value is a string,
+ * this function uses writeQuotedString to write the value.
+ */
+
+template <typename ValueType>
+void writeGenericValue(std::ostream & os, const ValueType & value,
+                       bool) {
+   os << value;
+}
+
+template <>
+inline void writeGenericValue(std::ostream & os, const std::string & value,
+                              bool forceQuotes) {
+   writeQuotedString(os, value, forceQuotes);
+}
+
+/*
+ * Friend function: readGenericValue
+ * Usage: readGenericValue(is, value);
+ * -----------------------------------
+ * Reads a generic value from the input stream.  If that value is a string,
+ * this function uses readQuotedString to read the value.
+ */
+
+template <typename ValueType>
+void readGenericValue(std::istream & is, ValueType & value) {
+   is >> value;
+}
+
+template <>
+inline void readGenericValue(std::istream & is, std::string & value) {
+   readQuotedString(is, value);
+}
+
+
+#endif