home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Usenet 1994 October
/
usenetsourcesnewsgroupsinfomagicoctober1994disk2.iso
/
misc
/
volume39
/
par131
/
part02
/
Par131
/
charset.h
< prev
next >
Wrap
C/C++ Source or Header
|
1993-09-11
|
2KB
|
70 lines
/*********************/
/* charset.h */
/* for Par 1.31 */
/* Copyright 1993 by */
/* Adam M. Costello */
/*********************/
/* This is ANSI C code. */
/* Note: Those functions declared here which do not use errmsg */
/* always succeed, provided that they are passed valid arguments. */
#include "errmsg.h"
typedef struct charset charset;
charset *parsecharset(const char *str, errmsg_t errmsg);
/* parsecharset(str,errmsg) returns the set of characters defined by */
/* str using charset syntax (see par.doc). Returns NULL on failure. */
void freecharset(charset *cset);
/* freecharset(cset) frees any memory associated with */
/* *cset. cset may not be used after this call. */
int csmember(char c, const charset *cset);
/* csmember(c,cset) returns 1 if c is a member of *cset, 0 otherwise. */
charset *csunion(const charset *cset1, const charset *cset2, errmsg_t errmsg);
/* csunion(cset1,cset2) returns a pointer to the */
/* union of *cset1 and *cset2, or NULL on failure. */
charset *csdiff(const charset *cset1, const charset *cset2, errmsg_t errmsg);
/* csdiff(cset1,cset2) returns a pointer to the set */
/* difference *cset1 - *cset2 , or NULL on failure. */
void csadd(charset *cset1, const charset *cset2, errmsg_t errmsg);
/* csadd(cset1,cset2) adds the members of *cset2 */
/* to *cset1. On failure, *cset1 is not changed. */
void csremove(charset *cset1, const charset *cset2, errmsg_t errmsg);
/* csremove(cset1,cset2) removes the members of *cset2 */
/* from *cset1. On failure, *cset1 is not changed. */
charset *cscopy(const charset *cset, errmsg_t errmsg);
/* cscopy(cset) returns a copy of cset, or NULL on failure. */
void csswap(charset *cset1, charset *cset2);
/* csswap(cset1,cset2) swaps the contents of *cset1 and *cset2. */