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# dmd.root.filename

Compiler implementation of the D programming language http://dlang.org
Authors:
Walter Bright, http://www.digitalmars.com
License:
Boost License 1.0

Source root/filename.d

Documentation https://dlang.org/phobos/dmd_root_filename.html

Coverage https://codecov.io/gh/dlang/dmd/src/master/src/dmd/root/filename.d

struct `FileName`;
  Encapsulate path and file names.
  static pure nothrow bool `absolute`(const(char)* `name`);
    Determine if path is absolute.
    Parameters:

    const(char)* `name` | path

    Returns:
    true if absolute path name.
  static nothrow const(char)* `toAbsolute`(const(char)* `name`, const(char)* `base` = null);
    Return the given name as an absolute path
    Parameters:

    const(char)* `name` | path
    const(char)* `base` | the absolute base to prefix name with if it is relative

    Returns:
    name as an absolute path relative to base
  static pure nothrow const(char)* `ext`(const(char)* `str`);
    Determine file name extension as slice of input.
    Parameters:

    const(char)* `str` | file name

    Returns:
    filename extension (read-only). Points past '.' of extension. If there isn't one, return null.
  static nothrow const(char)* `removeExt`(const(char)* `str`);
    Return file name without extension.
    Parameters:

    const(char)* `str` | file name

    Returns:
    mem.xmalloc'd filename with extension removed.
  static pure nothrow const(char)* `name`(const(char)* `str`);
    Return filename name excluding path (read-only).
  static nothrow const(char)* `path`(const(char)* `str`);
    Return path portion of str. Path will does not include trailing path separator.
  static nothrow const(char)* `replaceName`(const(char)* `path`, const(char)* `name`);
    Replace filename portion of path.
  static nothrow const(char)* `defaultExt`(const(char)* `name`, const(char)* `ext`);
    Free returned value with FileName::free()
  static nothrow const(char)* `forceExt`(const(char)* `name`, const(char)* `ext`);
    Free returned value with FileName::free()
  const pure nothrow bool `equalsExt`(const(char)* `ext`);
    Return !=0 if extensions match.
  static nothrow const(char)* `searchPath`(Strings* `path`, const(char)* `name`, bool `cwd`);
    Search Path for file.

    Input cwd if true, search current directory before searching path

  static nothrow const(char)* `safeSearchPath`(Strings* `path`, const(char)* `name`);
    Search Path for file in a safe manner.
    Be wary of CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') attacks. http://cwe.mitre.org/data/definitions/22.html More info: https://www.securecoding.cert.org/confluence/display/c/FIO02-C.+Canonicalize+path+names+originating+from+tainted+sources
    Returns:
    NULL file not found !=NULL mem.xmalloc'd file name
  static nothrow const(char)* `canonicalName`(const(char)* `name`);
    Return canonical version of name in a malloc'd buffer. This code is high risk.
  static nothrow void `free`(const(char)* `str`);
    Free memory allocated by FileName routines
auto `absPathThen`(alias F)(const(char)* `fileName`);
  Takes a callable F and applies it to the result of converting `fileName` to an absolute file path (char*)
  Parameters:

  const(char)* `fileName` | The file name to be converted to an absolute path

  Returns:
  Whatever F returns.

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