#ifndef _util_h_ #define _util_h_ /* Copyright (c) 2013-2021 Devine Lu Linvega 2018 web port by rezmason 2021 C89 port by rezmason Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE. */ /* These are common utility functions in C programs that make heavy use of strings, but are not included in C89. */ typedef struct { void (*f)(void); } FuncWrapper; FuncWrapper *wrapFunction(void (*f)(void)); char *concat(const char *s1, const char *s2); char *duplicate(const char *s); int isMatch(char *c, const char *candidates); char *getNextToken(char *str, const char *delim, char **save); #endif