Reusable librock_memistr - locate a string in a counted string or block of memory. Ignore case.

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NAME

librock_memistr - locate a string in a counted string or block of memory. Ignore case.

#License - #Source code - #Example Use -

SYNOPSIS

#include <librock/parse.h>

char librock_PTR *librock_memistr(const char librock_PTR *pMem,
                                  const char librock_PTR *pszFind,
                                  int cbMem)

DESCRIPTION

Returns a pointer to the first occurrence of all characters of pszFind in the memory block at pMem. The comparison is done with strncasecmp, and the tolower and toupper macros from <ctype.h> are used.

Typical use is wherever strstr is needed, but a memory block needs to be searched, not a NUL terminated string.

#ifdef librock_TYPICAL_USE_memistr
    const char buffer[] = "In the \0beginning.";
    const char *ptr;
    ptr = librock_memistr(buffer,"BEGIN",sizeof(buffer));
    if (ptr) {
        printf("%s\n",ptr);
    }
#endif

USES

  memchr() toupper() tolower()
  librock_strncasecmp()

LICENSE

  Copyright 1998-2002 Forrest J. Cavalier III, http://www.mibsoftware.com
  Licensed under BSD-ish license, NO WARRANTY. Copies must retain this block.
  License text in <librock/license/librock.txt> librock_LIDESC_HC=12440211096131f5976d36be0cddca4cd9152e45

Source Code

./text/compsearch/memistr.c (implementation, plus source of this manual page)

Tests and Supported Platform Types

This is a representative sample. Librock code is highly portable. For a particular platform not reported here, request paid support

librock_memistr passed tests in tmemistr (Unix/Linux/BSD: 2002/08/08 sys=FreeBSD using gcc)
librock_memistr passed tests in tmemistr (WIN32: 2002/08/08 sys=NT 4.0 using MSVC)

This software is part of Librock

Rapid reuse, without rework.

Source code which is Open-source, Free (Libre) and free (no cost)
Namespace limited. All compile-time macros and names visible at link time are prefixed by "librock_". Integrate into your project and expect no name collisions.
Stable API means new functions get new names so that there is no risk that updating a source file will break existing applications.
Highly portable, cross-platform, and multithread compatible. Works with many machines, compilers, and operating systems (gcc/MSVC/Windows/Linux/BSD).

Details

Verbatim copying and distribution of this generated page is permitted in any medium provided that no changes are made.
(The source of this manual page may be covered by a more permissive license which allows modifications.)

Want to help? We welcome comments, patches. -- Need help? Request paid support.