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fnmatch (3)
  • fnmatch (3) ( Solaris man: Библиотечные вызовы )
  • fnmatch (3) ( FreeBSD man: Библиотечные вызовы )
  • fnmatch (3) ( Русские man: Библиотечные вызовы )
  • fnmatch (3) ( Linux man: Библиотечные вызовы )
  • >> fnmatch (3) ( POSIX man: Библиотечные вызовы )
  • fnmatch (5) ( Solaris man: Форматы файлов )
  •  

    NAME

    fnmatch - match a filename or a pathname
     
    

    SYNOPSIS

    #include <fnmatch.h>

    int fnmatch(const char *pattern, const char *string, int flags);
     

    DESCRIPTION

    The fnmatch() function shall match patterns as described in the Shell and Utilities volume of IEEE Std 1003.1-2001, Section 2.13.1, Patterns Matching a Single Character, and Section 2.13.2, Patterns Matching Multiple Characters. It checks the string specified by the string argument to see if it matches the pattern specified by the pattern argument.

    The flags argument shall modify the interpretation of pattern and string. It is the bitwise-inclusive OR of zero or more of the flags defined in <fnmatch.h>. If the FNM_PATHNAME flag is set in flags, then a slash character ( '/' ) in string shall be explicitly matched by a slash in pattern; it shall not be matched by either the asterisk or question-mark special characters, nor by a bracket expression. If the FNM_PATHNAME flag is not set, the slash character shall be treated as an ordinary character.

    If FNM_NOESCAPE is not set in flags, a backslash character ( '\' ) in pattern followed by any other character shall match that second character in string. In particular, "\\" shall match a backslash in string. If FNM_NOESCAPE is set, a backslash character shall be treated as an ordinary character.

    If FNM_PERIOD is set in flags, then a leading period ( '.' ) in string shall match a period in pattern; as described by rule 2 in the Shell and Utilities volume of IEEE Std 1003.1-2001, Section 2.13.3, Patterns Used for Filename Expansion where the location of "leading" is indicated by the value of FNM_PATHNAME:

    If FNM_PATHNAME is set, a period is "leading" if it is the first character in string or if it immediately follows a slash.

    If FNM_PATHNAME is not set, a period is "leading" only if it is the first character of string.

    If FNM_PERIOD is not set, then no special restrictions are placed on matching a period.  

    RETURN VALUE

    If string matches the pattern specified by pattern, then fnmatch() shall return 0. If there is no match, fnmatch() shall return FNM_NOMATCH, which is defined in <fnmatch.h>. If an error occurs, fnmatch() shall return another non-zero value.  

    ERRORS

    No errors are defined.

    The following sections are informative.  

    EXAMPLES

    None.  

    APPLICATION USAGE

    The fnmatch() function has two major uses. It could be used by an application or utility that needs to read a directory and apply a pattern against each entry. The find utility is an example of this. It can also be used by the pax utility to process its pattern operands, or by applications that need to match strings in a similar manner.

    The name fnmatch() is intended to imply filename match, rather than pathname match. The default action of this function is to match filenames, rather than pathnames, since it gives no special significance to the slash character. With the FNM_PATHNAME flag, fnmatch() does match pathnames, but without tilde expansion, parameter expansion, or special treatment for a period at the beginning of a filename.  

    RATIONALE

    This function replaced the REG_FILENAME flag of regcomp() in early proposals of this volume of IEEE Std 1003.1-2001. It provides virtually the same functionality as the regcomp() and regexec() functions using the REG_FILENAME and REG_FSLASH flags (the REG_FSLASH flag was proposed for regcomp(), and would have had the opposite effect from FNM_PATHNAME), but with a simpler function and less system overhead.  

    FUTURE DIRECTIONS

    None.  

    SEE ALSO

    glob() , wordexp() , the Base Definitions volume of IEEE Std 1003.1-2001, <fnmatch.h>, the Shell and Utilities volume of IEEE Std 1003.1-2001  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    EXAMPLES
    APPLICATION USAGE
    RATIONALE
    FUTURE DIRECTIONS
    SEE ALSO
    COPYRIGHT


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