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体验新版 GitCode,发现更多精彩内容 >>
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c7b83273
编写于
1月 04, 2018
作者:
R
Ryuta Kamizono
提交者:
GitHub
1月 04, 2018
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Merge pull request #31049 from gwincr11/cg-blank
Add support for multiple encodings in String.blank?
上级
cb86b95b
7b44ffa2
变更
2
显示空白变更内容
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并排
Showing
2 changed file
with
12 addition
and
3 deletion
+12
-3
activesupport/lib/active_support/core_ext/object/blank.rb
activesupport/lib/active_support/core_ext/object/blank.rb
+10
-1
activesupport/test/core_ext/object/blank_test.rb
activesupport/test/core_ext/object/blank_test.rb
+2
-2
未找到文件。
activesupport/lib/active_support/core_ext/object/blank.rb
浏览文件 @
c7b83273
# frozen_string_literal: true
require
"active_support/core_ext/regexp"
require
"concurrent/map"
class
Object
# An object is blank if it's false, empty, or a whitespace string.
...
...
@@ -102,6 +103,9 @@ class Hash
class
String
BLANK_RE
=
/\A[[:space:]]*\z/
ENCODED_BLANKS
=
Concurrent
::
Map
.
new
do
|
h
,
enc
|
h
[
enc
]
=
Regexp
.
new
(
BLANK_RE
.
source
.
encode
(
enc
),
BLANK_RE
.
options
|
Regexp
::
FIXEDENCODING
)
end
# A string is blank if it's empty or contains whitespaces only:
#
...
...
@@ -119,7 +123,12 @@ def blank?
# The regexp that matches blank strings is expensive. For the case of empty
# strings we can speed up this method (~3.5x) with an empty? call. The
# penalty for the rest of strings is marginal.
empty?
||
BLANK_RE
.
match?
(
self
)
empty?
||
begin
BLANK_RE
.
match?
(
self
)
rescue
Encoding
::
CompatibilityError
ENCODED_BLANKS
[
self
.
encoding
].
match?
(
self
)
end
end
end
...
...
activesupport/test/core_ext/object/blank_test.rb
浏览文件 @
c7b83273
...
...
@@ -16,8 +16,8 @@ def empty?
end
end
BLANK
=
[
EmptyTrue
.
new
,
nil
,
false
,
""
,
" "
,
"
\n\t
\r
"
,
" "
,
"
\u
00a0"
,
[],
{}
]
NOT
=
[
EmptyFalse
.
new
,
Object
.
new
,
true
,
0
,
1
,
"a"
,
[
nil
],
{
nil
=>
0
},
Time
.
now
]
BLANK
=
[
EmptyTrue
.
new
,
nil
,
false
,
""
,
" "
,
"
\n\t
\r
"
,
" "
,
"
\u
00a0"
,
[],
{}
,
" "
.
encode
(
"UTF-16LE"
)
]
NOT
=
[
EmptyFalse
.
new
,
Object
.
new
,
true
,
0
,
1
,
"a"
,
[
nil
],
{
nil
=>
0
},
Time
.
now
,
"my value"
.
encode
(
"UTF-16LE"
)
]
def
test_blank
BLANK
.
each
{
|
v
|
assert_equal
true
,
v
.
blank?
,
"
#{
v
.
inspect
}
should be blank"
}
...
...
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