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1.1 ! root 1: /* ! 2: * misc.h ! 3: * Miscellaneous useful user functions. ! 4: * Sugggestions and additions are welcome. ! 5: */ ! 6: #ifndef OFFSETOF ! 7: ! 8: /* Handy defines */ ! 9: #define OFFSETOF(type, mem) (&((char *)((type *)NULL)->m) - NULL) ! 10: #define ENDOF(x) (((char *)(x))+sizeof(x)) /* end of some thing */ ! 11: #define SETIN(a, b) !((a) & ~(b)) /* a in b */ ! 12: ! 13: #ifdef M68000 ! 14: #define ptrdiff(a, b) ((long)a - (long)b) ! 15: #else ! 16: #ifdef LARGE ! 17: #define ptrdiff(a, b) (((((long)a>>16)-((long)b>>16))<<4)+((int)a-(int)b)) ! 18: #else ! 19: #define ptrdiff(a, b) ((int)a - (int)b) ! 20: #endif ! 21: #endif ! 22: ! 23: #include <stdio.h> ! 24: extern fatal(); /* like fprintf(stderr, ...); exit(0); */ ! 25: extern char * getline();/* char * getline(FILE *fp, int *lineNo); ! 26: * gets lines off a file treats # to end of line ! 27: * as comment, discards \ [ \t\n] through end of ! 28: * line to create continuations. */ ! 29: extern usage(); /* like fatal but message starts usage: */ ! 30: extern FILE *xopen(); /* xopen(filename, access); fopen or die */ ! 31: extern char *pathn(); /* pathn("helpfile", "LIBPATH", ",,\lib", "r"); ! 32: * gets full pathname given an filename ! 33: * env var with path, default path and access rights */ ! 34: extern xdump(); /* xdump(ptr, size) hex dumps an area */ ! 35: extern long randl(); /* IEEE random number (random bits) */ ! 36: extern srandl(); /* srandl(unsigned long s1, s2); */ ! 37: extern unsigned short crc16(); /* crc16(char *p) calculate 16 bit crc */ ! 38: extern char *ask(); /* ask(reply, msg); ! 39: * like printf(msg, ...) returns a user reply */ ! 40: extern int yn(); /* like printf(msg, ...) returns yes=1 or no=0 reply */ ! 41: extern char *alloc(); /* get space or die */ ! 42: extern void banner(); /* banner("Done", 3) prints a banner saying ! 43: * Done with 3 spaces infront. */ ! 44: extern strcmpl(); /* case insensative strcmp() */ ! 45: extern char *lcase(); /* convert string to lower case */ ! 46: extern char *ucase(); /* convert string to upper case */ ! 47: extern char *newcpy(); /* make a malloced copy of a string */ ! 48: extern char *match(); /* match(s1, pat, fin) ! 49: * finds pat in s1 by pnmatch rules ! 50: * returns start of pattern or NULL ! 51: * places pointer to end in *fin ! 52: */ ! 53: extern char *replace(); /* replace(s1, pat, s3, all, matcher) ! 54: * search s1 for pat and replace by s3. ! 55: * Using matcher which is a pointer to ! 56: * a function that looks externally like match. ! 57: * Returns a new malloced string or NULL ! 58: * does all if all != 0 else first. */ ! 59: extern char * span(); /* span(s1, matcher, fin) ! 60: * matches all chars passing function ! 61: * matcher. Looks like match. */ ! 62: extern char * skip(); /* skip(s1, matcher, fin) ! 63: * matches all chars not passing function ! 64: * matcher. Looks like match. */ ! 65: extern approx(); /* approx(double a, double b) 1 if == within epsilon */ ! 66: extern double epsilon; ! 67: extern int is_fs(); /* is_fs(char *special) test if special is filesystem */ ! 68: extern void vinit(); /* vinit(char * workFileName, unsigned storAmt); ! 69: * Init the software virtual system telling it how much ! 70: * storage it may use for buffers */ ! 71: extern void vshutdown(); /* Shut down the virtual system and free its storage */ ! 72: extern unsigned vopen(); /* vopen(long amt); Set up a virtual object amt ! 73: * bytes long and return a vid number. */ ! 74: extern char *vfind(); /* vfind(int vid, long disp, int dirty); ! 75: * Point to a byte disp bytes into vid, set the ! 76: * dirty bit if dirty == 1 */ ! 77: extern char *trim(); /* trim(char *s); remove trailing whitespace from s */ ! 78: extern void splitter(); /* splitter(FILE *ofp, char *line, int limit) ! 79: * split line into limit size chunks by inserting ! 80: * \ \n and put the results to ofp. */ ! 81: extern strchrtr(); ! 82: /* strchrtr(char *from, char *to, int c, int d) ! 83: * Find c in from and return the corresponding char ! 84: * in to or def if there is none. ! 85: */ ! 86: /* ! 87: * Definitions etc. for regexp(3) routines. ! 88: * ! 89: * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof], ! 90: * not the System V one. ! 91: * ! 92: * This is a modification of the University of Toronto regexp() package. ! 93: * Mostly to fit in cleanly with Coherent's libmisc. The original can ! 94: * be gotten free on mwcbbs. ! 95: */ ! 96: #define NSUBEXP 10 ! 97: typedef struct regexp { ! 98: char *startp[NSUBEXP]; ! 99: char *endp[NSUBEXP]; ! 100: char regstart; /* Internal use only. */ ! 101: char reganch; /* Internal use only. */ ! 102: char *regmust; /* Internal use only. */ ! 103: int regmlen; /* Internal use only. */ ! 104: char program[1]; /* Unwarranted chumminess with compiler. */ ! 105: } regexp; ! 106: ! 107: extern regexp *regcomp(); ! 108: extern int regexec(); ! 109: extern void regsub(); ! 110: extern void regerror(); ! 111: /* ! 112: * The first byte of the regexp internal "program" is actually this magic ! 113: * number; the start node begins in the second byte. ! 114: */ ! 115: #define REG_MAGIC (char)0234 ! 116: #endif
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