+ /** Check if two chars match.
+ * @param c1st First character
+ * @param c2nd Second character
+ * @return true if the characters are equal
+ */
+ static bool eq(char c1st, char c2nd);
+
+ /** Check if two chars do NOT match.
+ * @param c1st First character
+ * @param c2nd Second character
+ * @return true if the characters are unequal
+ */
+ static bool ne(char c1st, char c2nd);
+
+ /** Check if one char is less than another.
+ * @param c1st First character
+ * @param c2nd Second character
+ * @return true if c1st is less than c2nd
+ */
+ static bool lt(char c1st, char c2nd);
+
+ /** Compare two strings of size n.
+ * @param str1 First string
+ * @param str2 Second string
+ * @param n Length to compare to
+ * @return similar to strcmp, zero for equal, less than zero for str1
+ * being less and greater than zero for str1 being greater than str2.
+ */
+ static int compare(const char* str1, const char* str2, size_t n);
+
+ /** Find a char within a string up to position n.
+ * @param s1 String to find in
+ * @param n Position to search up to
+ * @param c Character to search for
+ * @return Pointer to the first occurance of c in s1
+ */
+ static const char* find(const char* s1, int n, char c);
+ };
+
+ /** This typedef declares irc::string based upon irc_char_traits.
+ */
+ typedef std::basic_string<char, irc_char_traits, std::allocator<char> > string;
+
+ /** Joins the contents of a vector to a string.
+ * @param sequence Zero or more items to join.
+ * @separator The character to place between the items.
+ */
+ std::string CoreExport stringjoiner(const std::vector<std::string>& sequence, char separator = ' ');
+
+ /** irc::modestacker stacks mode sequences into a list.
+ * It can then reproduce this list, clamped to a maximum of MAXMODES
+ * values per line.
+ */
+ class CoreExport modestacker
+ {
+ private:
+ /** The mode sequence and its parameters
+ */
+ std::deque<std::string> sequence;
+
+ /** True if the mode sequence is initially adding
+ * characters, false if it is initially removing
+ * them
+ */
+ bool adding;
+ public:
+
+ /** Construct a new modestacker.
+ * @param add True if the stack is adding modes,
+ * false if it is removing them
+ */
+ modestacker(bool add);
+
+ /** Push a modeletter and its parameter onto the stack.
+ * No checking is performed as to if this mode actually
+ * requires a parameter. If you stack invalid mode
+ * sequences, they will be tidied if and when they are
+ * passed to a mode parser.
+ * @param modeletter The mode letter to insert
+ * @param parameter The parameter for the mode
+ */
+ void Push(char modeletter, const std::string ¶meter);
+
+ /** Push a modeletter without parameter onto the stack.
+ * No checking is performed as to if this mode actually
+ * requires a parameter. If you stack invalid mode
+ * sequences, they will be tidied if and when they are
+ * passed to a mode parser.
+ * @param modeletter The mode letter to insert
+ */
+ void Push(char modeletter);
+
+ /** Push a '+' symbol onto the stack.
+ */
+ void PushPlus();
+
+ /** Push a '-' symbol onto the stack.
+ */
+ void PushMinus();
+
+ /** Return zero or more elements which form the
+ * mode line. This will be clamped to a max of
+ * MAXMODES items (MAXMODES-1 mode parameters and
+ * one mode sequence string), and max_line_size
+ * characters. As specified below, this function
+ * should be called in a loop until it returns zero,
+ * indicating there are no more modes to return.
+ * @param result The vector to populate. This will not
+ * be cleared before it is used.
+ * @param max_line_size The maximum size of the line
+ * to build, in characters, seperate to MAXMODES.
+ * @return The number of elements in the deque.
+ * The function should be called repeatedly until it
+ * returns 0, in case there are multiple lines of
+ * mode changes to be obtained.
+ */
+ int GetStackedLine(std::vector<std::string> &result, int max_line_size = 360);
+
+ };
+
+ /** irc::sepstream allows for splitting token seperated lists.
+ * Each successive call to sepstream::GetToken() returns
+ * the next token, until none remain, at which point the method returns
+ * an empty string.
+ */
+ class CoreExport sepstream
+ {
+ protected:
+ /** Original string.
+ */
+ std::string tokens;
+ /** Separator value
+ */
+ char sep;
+ /** Current string position
+ */
+ size_t pos;
+ /** If set then GetToken() can return an empty string
+ */
+ bool allow_empty;
+ public:
+ /** Create a sepstream and fill it with the provided data
+ */
+ sepstream(const std::string &source, char separator, bool allowempty = false);
+
+ /** Fetch the next token from the stream
+ * @param token The next token from the stream is placed here
+ * @return True if tokens still remain, false if there are none left
+ */
+ bool GetToken(std::string& token);
+
+ /** Fetch the entire remaining stream, without tokenizing
+ * @return The remaining part of the stream
+ */
+ const std::string GetRemaining();
+
+ /** Returns true if the end of the stream has been reached
+ * @return True if the end of the stream has been reached, otherwise false
+ */
+ bool StreamEnd();
+ };
+
+ /** A derived form of sepstream, which seperates on commas
+ */
+ class CoreExport commasepstream : public sepstream
+ {
+ public:
+ /** Initialize with comma separator