withDefaultExtension

Set the extension of path to ext if path doesn't have one.

auto withDefaultExtension(R path, C[] ext)
auto withDefaultExtension(C1[] path, C2[] ext)
auto
withDefaultExtension
(
C1
C2
)
(
C1[] path
,
C2[] ext
)
if (
isSomeChar!C1 &&
isSomeChar!C2
)

Parameters

path C1[]: filespec as string or range
ext C2[]: extension, may have leading '.'

Return Value

Type: auto

range with the result

Examples

import std.array;
assert(withDefaultExtension("file", "ext").array == "file.ext");
assert(withDefaultExtension("file"w, ".ext").array == "file.ext"w);
assert(withDefaultExtension("file.", "ext").array == "file.");
assert(withDefaultExtension("file", "").array == "file.");

import std.utf : byChar, byWchar;
assert(withDefaultExtension("file".byChar, "ext").array == "file.ext");
assert(withDefaultExtension("file"w.byWchar, ".ext").array == "file.ext"w);
assert(withDefaultExtension("file.".byChar, "ext"d).array == "file.");
assert(withDefaultExtension("file".byChar, "").array == "file.");

withDefaultExtension

Parameters

Return Value

Examples

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