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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

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