mirror of
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322 lines
15 KiB
C
322 lines
15 KiB
C
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/*
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* This source file is part of the bstring string library. This code was
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* written by Paul Hsieh in 2002-2015, and is covered by the BSD open source
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* license and the GPL. Refer to the accompanying documentation for details
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* on usage and license.
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*/
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/*
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* bstrlib.h
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*
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* This file is the interface for the core bstring functions.
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*/
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#ifndef BSTRLIB_INCLUDE
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#define BSTRLIB_INCLUDE
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdarg.h>
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#include <string.h>
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#include <limits.h>
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#include <ctype.h>
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#if !defined (BSTRLIB_VSNP_OK) && !defined (BSTRLIB_NOVSNP)
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# if defined (__TURBOC__) && !defined (__BORLANDC__)
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# define BSTRLIB_NOVSNP
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# endif
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#endif
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#define BSTR_ERR (-1)
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#define BSTR_OK (0)
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#define BSTR_BS_BUFF_LENGTH_GET (0)
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typedef struct tagbstring * bstring;
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typedef const struct tagbstring * const_bstring;
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/* Version */
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#define BSTR_VER_MAJOR 1
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#define BSTR_VER_MINOR 0
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#define BSTR_VER_UPDATE 0
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/* Copy functions */
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#define cstr2bstr bfromcstr
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extern bstring bfromcstr (const char * str);
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extern bstring bfromcstralloc (int mlen, const char * str);
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extern bstring bfromcstrrangealloc (int minl, int maxl, const char* str);
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extern bstring blk2bstr (const void * blk, int len);
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extern char * bstr2cstr (const_bstring s, char z);
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extern int bcstrfree (char * s);
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extern bstring bstrcpy (const_bstring b1);
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extern int bassign (bstring a, const_bstring b);
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extern int bassignmidstr (bstring a, const_bstring b, int left, int len);
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extern int bassigncstr (bstring a, const char * str);
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extern int bassignblk (bstring a, const void * s, int len);
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/* Destroy function */
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extern int bdestroy (bstring b);
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/* Space allocation hinting functions */
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extern int balloc (bstring s, int len);
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extern int ballocmin (bstring b, int len);
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/* Substring extraction */
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extern bstring bmidstr (const_bstring b, int left, int len);
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/* Various standard manipulations */
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extern int bconcat (bstring b0, const_bstring b1);
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extern int bconchar (bstring b0, char c);
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extern int bcatcstr (bstring b, const char * s);
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extern int bcatblk (bstring b, const void * s, int len);
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extern int binsert (bstring s1, int pos, const_bstring s2, unsigned char fill);
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extern int binsertblk (bstring s1, int pos, const void * s2, int len, unsigned char fill);
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extern int binsertch (bstring s1, int pos, int len, unsigned char fill);
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extern int breplace (bstring b1, int pos, int len, const_bstring b2, unsigned char fill);
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extern int bdelete (bstring s1, int pos, int len);
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extern int bsetstr (bstring b0, int pos, const_bstring b1, unsigned char fill);
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extern int btrunc (bstring b, int n);
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/* Scan/search functions */
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extern int bstricmp (const_bstring b0, const_bstring b1);
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extern int bstrnicmp (const_bstring b0, const_bstring b1, int n);
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extern int biseqcaseless (const_bstring b0, const_bstring b1);
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extern int biseqcaselessblk (const_bstring b, const void * blk, int len);
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extern int bisstemeqcaselessblk (const_bstring b0, const void * blk, int len);
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extern int biseq (const_bstring b0, const_bstring b1);
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extern int biseqblk (const_bstring b, const void * blk, int len);
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extern int bisstemeqblk (const_bstring b0, const void * blk, int len);
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extern int biseqcstr (const_bstring b, const char * s);
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extern int biseqcstrcaseless (const_bstring b, const char * s);
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extern int bstrcmp (const_bstring b0, const_bstring b1);
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extern int bstrncmp (const_bstring b0, const_bstring b1, int n);
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extern int binstr (const_bstring s1, int pos, const_bstring s2);
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extern int binstrr (const_bstring s1, int pos, const_bstring s2);
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extern int binstrcaseless (const_bstring s1, int pos, const_bstring s2);
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extern int binstrrcaseless (const_bstring s1, int pos, const_bstring s2);
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extern int bstrchrp (const_bstring b, int c, int pos);
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extern int bstrrchrp (const_bstring b, int c, int pos);
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#define bstrchr(b,c) bstrchrp ((b), (c), 0)
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#define bstrrchr(b,c) bstrrchrp ((b), (c), blength(b)-1)
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extern int binchr (const_bstring b0, int pos, const_bstring b1);
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extern int binchrr (const_bstring b0, int pos, const_bstring b1);
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extern int bninchr (const_bstring b0, int pos, const_bstring b1);
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extern int bninchrr (const_bstring b0, int pos, const_bstring b1);
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extern int bfindreplace (bstring b, const_bstring find, const_bstring repl, int pos);
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extern int bfindreplacecaseless (bstring b, const_bstring find, const_bstring repl, int pos);
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/* List of string container functions */
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struct bstrList {
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int qty, mlen;
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bstring * entry;
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};
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extern struct bstrList * bstrListCreate (void);
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extern int bstrListDestroy (struct bstrList * sl);
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extern int bstrListAlloc (struct bstrList * sl, int msz);
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extern int bstrListAllocMin (struct bstrList * sl, int msz);
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/* String split and join functions */
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extern struct bstrList * bsplit (const_bstring str, unsigned char splitChar);
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extern struct bstrList * bsplits (const_bstring str, const_bstring splitStr);
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extern struct bstrList * bsplitstr (const_bstring str, const_bstring splitStr);
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extern bstring bjoin (const struct bstrList * bl, const_bstring sep);
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extern bstring bjoinblk (const struct bstrList * bl, const void * s, int len);
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extern int bsplitcb (const_bstring str, unsigned char splitChar, int pos,
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int (* cb) (void * parm, int ofs, int len), void * parm);
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extern int bsplitscb (const_bstring str, const_bstring splitStr, int pos,
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int (* cb) (void * parm, int ofs, int len), void * parm);
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extern int bsplitstrcb (const_bstring str, const_bstring splitStr, int pos,
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int (* cb) (void * parm, int ofs, int len), void * parm);
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/* Miscellaneous functions */
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extern int bpattern (bstring b, int len);
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extern int btoupper (bstring b);
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extern int btolower (bstring b);
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extern int bltrimws (bstring b);
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extern int brtrimws (bstring b);
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extern int btrimws (bstring b);
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#if !defined (BSTRLIB_NOVSNP)
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extern bstring bformat (const char * fmt, ...);
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extern int bformata (bstring b, const char * fmt, ...);
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extern int bassignformat (bstring b, const char * fmt, ...);
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extern int bvcformata (bstring b, int count, const char * fmt, va_list arglist);
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#define bvformata(ret, b, fmt, lastarg) { \
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bstring bstrtmp_b = (b); \
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const char * bstrtmp_fmt = (fmt); \
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int bstrtmp_r = BSTR_ERR, bstrtmp_sz = 16; \
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for (;;) { \
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va_list bstrtmp_arglist; \
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va_start (bstrtmp_arglist, lastarg); \
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bstrtmp_r = bvcformata (bstrtmp_b, bstrtmp_sz, bstrtmp_fmt, bstrtmp_arglist); \
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va_end (bstrtmp_arglist); \
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if (bstrtmp_r >= 0) { /* Everything went ok */ \
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bstrtmp_r = BSTR_OK; \
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break; \
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} else if (-bstrtmp_r <= bstrtmp_sz) { /* A real error? */ \
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bstrtmp_r = BSTR_ERR; \
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break; \
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} \
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bstrtmp_sz = -bstrtmp_r; /* Doubled or target size */ \
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} \
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ret = bstrtmp_r; \
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}
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#endif
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typedef int (*bNgetc) (void *parm);
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typedef size_t (* bNread) (void *buff, size_t elsize, size_t nelem, void *parm);
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/* Input functions */
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extern bstring bgets (bNgetc getcPtr, void * parm, char terminator);
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extern bstring bread (bNread readPtr, void * parm);
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extern int bgetsa (bstring b, bNgetc getcPtr, void * parm, char terminator);
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extern int bassigngets (bstring b, bNgetc getcPtr, void * parm, char terminator);
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extern int breada (bstring b, bNread readPtr, void * parm);
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/* Stream functions */
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extern struct bStream * bsopen (bNread readPtr, void * parm);
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extern void * bsclose (struct bStream * s);
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extern int bsbufflength (struct bStream * s, int sz);
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extern int bsreadln (bstring b, struct bStream * s, char terminator);
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extern int bsreadlns (bstring r, struct bStream * s, const_bstring term);
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extern int bsread (bstring b, struct bStream * s, int n);
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extern int bsreadlna (bstring b, struct bStream * s, char terminator);
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extern int bsreadlnsa (bstring r, struct bStream * s, const_bstring term);
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extern int bsreada (bstring b, struct bStream * s, int n);
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extern int bsunread (struct bStream * s, const_bstring b);
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extern int bspeek (bstring r, const struct bStream * s);
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extern int bssplitscb (struct bStream * s, const_bstring splitStr,
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int (* cb) (void * parm, int ofs, const_bstring entry), void * parm);
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extern int bssplitstrcb (struct bStream * s, const_bstring splitStr,
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int (* cb) (void * parm, int ofs, const_bstring entry), void * parm);
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extern int bseof (const struct bStream * s);
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struct tagbstring {
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int mlen;
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int slen;
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unsigned char * data;
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};
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/* Accessor macros */
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#define blengthe(b, e) (((b) == (void *)0 || (b)->slen < 0) ? (int)(e) : ((b)->slen))
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#define blength(b) (blengthe ((b), 0))
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#define bdataofse(b, o, e) (((b) == (void *)0 || (b)->data == (void*)0) ? (char *)(e) : ((char *)(b)->data) + (o))
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#define bdataofs(b, o) (bdataofse ((b), (o), (void *)0))
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#define bdatae(b, e) (bdataofse (b, 0, e))
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#define bdata(b) (bdataofs (b, 0))
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#define bchare(b, p, e) ((((unsigned)(p)) < (unsigned)blength(b)) ? ((b)->data[(p)]) : (e))
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#define bchar(b, p) bchare ((b), (p), '\0')
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/* Static constant string initialization macro */
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#define bsStaticMlen(q,m) {(m), (int) sizeof(q)-1, (unsigned char *) ("" q "")}
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#if defined(_MSC_VER)
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# define bsStatic(q) bsStaticMlen(q,-32)
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#endif
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#ifndef bsStatic
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# define bsStatic(q) bsStaticMlen(q,-__LINE__)
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#endif
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/* Static constant block parameter pair */
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#define bsStaticBlkParms(q) ((void *)("" q "")), ((int) sizeof(q)-1)
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#define bcatStatic(b,s) ((bcatblk)((b), bsStaticBlkParms(s)))
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#define bfromStatic(s) ((blk2bstr)(bsStaticBlkParms(s)))
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#define bassignStatic(b,s) ((bassignblk)((b), bsStaticBlkParms(s)))
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#define binsertStatic(b,p,s,f) ((binsertblk)((b), (p), bsStaticBlkParms(s), (f)))
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#define bjoinStatic(b,s) ((bjoinblk)((b), bsStaticBlkParms(s)))
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#define biseqStatic(b,s) ((biseqblk)((b), bsStaticBlkParms(s)))
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#define bisstemeqStatic(b,s) ((bisstemeqblk)((b), bsStaticBlkParms(s)))
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#define biseqcaselessStatic(b,s) ((biseqcaselessblk)((b), bsStaticBlkParms(s)))
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#define bisstemeqcaselessStatic(b,s) ((bisstemeqcaselessblk)((b), bsStaticBlkParms(s)))
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/* Reference building macros */
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#define cstr2tbstr btfromcstr
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#define btfromcstr(t,s) { \
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(t).data = (unsigned char *) (s); \
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(t).slen = ((t).data) ? ((int) (strlen) ((char *)(t).data)) : 0; \
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(t).mlen = -1; \
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}
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#define blk2tbstr(t,s,l) { \
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(t).data = (unsigned char *) (s); \
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(t).slen = l; \
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(t).mlen = -1; \
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}
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#define btfromblk(t,s,l) blk2tbstr(t,s,l)
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#define bmid2tbstr(t,b,p,l) { \
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const_bstring bstrtmp_s = (b); \
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if (bstrtmp_s && bstrtmp_s->data && bstrtmp_s->slen >= 0) { \
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int bstrtmp_left = (p); \
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int bstrtmp_len = (l); \
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if (bstrtmp_left < 0) { \
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bstrtmp_len += bstrtmp_left; \
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bstrtmp_left = 0; \
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} \
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if (bstrtmp_len > bstrtmp_s->slen - bstrtmp_left) \
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bstrtmp_len = bstrtmp_s->slen - bstrtmp_left; \
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if (bstrtmp_len <= 0) { \
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(t).data = (unsigned char *)""; \
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(t).slen = 0; \
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} else { \
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(t).data = bstrtmp_s->data + bstrtmp_left; \
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(t).slen = bstrtmp_len; \
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} \
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} else { \
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(t).data = (unsigned char *)""; \
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(t).slen = 0; \
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} \
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(t).mlen = -__LINE__; \
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}
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#define btfromblkltrimws(t,s,l) { \
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int bstrtmp_idx = 0, bstrtmp_len = (l); \
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unsigned char * bstrtmp_s = (s); \
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if (bstrtmp_s && bstrtmp_len >= 0) { \
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for (; bstrtmp_idx < bstrtmp_len; bstrtmp_idx++) { \
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if (!isspace (bstrtmp_s[bstrtmp_idx])) break; \
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} \
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} \
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(t).data = bstrtmp_s + bstrtmp_idx; \
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(t).slen = bstrtmp_len - bstrtmp_idx; \
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(t).mlen = -__LINE__; \
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}
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#define btfromblkrtrimws(t,s,l) { \
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int bstrtmp_len = (l) - 1; \
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unsigned char * bstrtmp_s = (s); \
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if (bstrtmp_s && bstrtmp_len >= 0) { \
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for (; bstrtmp_len >= 0; bstrtmp_len--) { \
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if (!isspace (bstrtmp_s[bstrtmp_len])) break; \
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} \
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} \
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(t).data = bstrtmp_s; \
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(t).slen = bstrtmp_len + 1; \
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(t).mlen = -__LINE__; \
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}
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#define btfromblktrimws(t,s,l) { \
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int bstrtmp_idx = 0, bstrtmp_len = (l) - 1; \
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|
unsigned char * bstrtmp_s = (s); \
|
||
|
|
if (bstrtmp_s && bstrtmp_len >= 0) { \
|
||
|
|
for (; bstrtmp_idx <= bstrtmp_len; bstrtmp_idx++) { \
|
||
|
|
if (!isspace (bstrtmp_s[bstrtmp_idx])) break; \
|
||
|
|
} \
|
||
|
|
for (; bstrtmp_len >= bstrtmp_idx; bstrtmp_len--) { \
|
||
|
|
if (!isspace (bstrtmp_s[bstrtmp_len])) break; \
|
||
|
|
} \
|
||
|
|
} \
|
||
|
|
(t).data = bstrtmp_s + bstrtmp_idx; \
|
||
|
|
(t).slen = bstrtmp_len + 1 - bstrtmp_idx; \
|
||
|
|
(t).mlen = -__LINE__; \
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Write protection macros */
|
||
|
|
#define bwriteprotect(t) { if ((t).mlen >= 0) (t).mlen = -1; }
|
||
|
|
#define bwriteallow(t) { if ((t).mlen == -1) (t).mlen = (t).slen + ((t).slen == 0); }
|
||
|
|
#define biswriteprotected(t) ((t).mlen <= 0)
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|