#ifndef CLICK_TOOLUTILS_HH#define CLICK_TOOLUTILS_HH#include <click/userutils.hh>class RouterT;class VariableEnvironment;extern VariableEnvironment global_scope;extern bool ignore_line_directives;int click_maybe_define(const char *arg, ErrorHandler *errh);RouterT *read_router_string(const String &text, const String &landmark, ErrorHandler *);RouterT *read_router_string(String text, const String &landmark, bool, RouterT *, ErrorHandler *);RouterT *read_router_file(const char *filename, ErrorHandler *);RouterT *read_router_file(const char *filename, bool empty_ok, ErrorHandler *);RouterT *read_router(const String &, bool is_expr, ErrorHandler *);void write_router_file(RouterT *, FILE *, ErrorHandler * = 0);int write_router_file(RouterT *, const char *, ErrorHandler * = 0);String xml_quote(const String &);#endif