text: /* SDSLib, A C dynamic strings library
   *
   * Copyright (c) 2006-2010, Salvatore Sanfilippo <antirez at gmail dot com>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   *   * Redistributions of source code must retain the above copyright notice,
   *     this list of conditions and the following disclaimer.
   *   * Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   *   * Neither the name of Redis nor the names of its contributors may be used
   *     to endorse or promote products derived from this software without
   *     specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef __SDS_H
  #define __SDS_H
  
  #include <sys/types.h>
  #include <stdarg.h>
  
  #ifdef _WIN32
  #define inline __inline
  #endif
  
  typedef char *sds;
  
  struct sdshdr {
      int len;
      int free;
      char buf[];
  };
  
  static inline size_t sdslen(const sds s) {
      struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr)));
      return sh->len;
  }
  
  static inline size_t sdsavail(const sds s) {
      struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr)));
      return sh->free;
  }
  
  sds sdsnewlen(const void *init, size_t initlen);
  sds sdsnew(const char *init);
  sds sdsempty();
  size_t sdslen(const sds s);
  sds sdsdup(const sds s);
  void sdsfree(sds s);
  size_t sdsavail(sds s);
  sds sdsgrowzero(sds s, size_t len);
  sds sdscatlen(sds s, void *t, size_t len);
  sds sdscat(sds s, char *t);
  sds sdscatsds(sds s, sds t);
  sds sdscpylen(sds s, char *t, size_t len);
  sds sdscpy(sds s, char *t);
  
  sds sdscatvprintf(sds s, const char *fmt, va_list ap);
  #ifdef __GNUC__
  sds sdscatprintf(sds s, const char *fmt, ...)
      __attribute__((format(printf, 2, 3)));
  #else
  sds sdscatprintf(sds s, const char *fmt, ...);
  #endif
  
  sds sdstrim(sds s, const char *cset);
  sds sdsrange(sds s, int start, int end);
  void sdsupdatelen(sds s);
  void sdsclear(sds s);
  int sdscmp(sds s1, sds s2);
  sds *sdssplitlen(char *s, int len, char *sep, int seplen, int *count);
  void sdsfreesplitres(sds *tokens, int count);
  void sdstolower(sds s);
  void sdstoupper(sds s);
  sds sdsfromlonglong(long long value);
  sds sdscatrepr(sds s, char *p, size_t len);
  sds *sdssplitargs(char *line, int *argc);
  
  #endif
  