matlab中linux和windows上regexp()的不同行为

发布于06月27日

我在linux和windows上使用MatLab时遇到了regexp()的不同行为.

Linux

test_string = '<some_path>/tool/test/unit_test'
seperator = sprintf('%stest%s',filesep,filesep)
regexp(test_string, seperator,'split')

输出:

1×2 cell array
{'<some_path>/tool'}    {'unit_test'}

Windows

test_string = '<some_path>\tool\test\unit_test'
seperator = sprintf('%stest%s',filesep,filesep)
regexp(test_string, seperator,'split')

输出

1×1 cell array
{'<some_path>\src\tool\test\unit_test'}

这个代码片段在Linux上的输出代表了我想要的行为.是否有人可以解释或指向资源以了解发生了什么？

Type of Translation	Description
`'escape'`	Translate all special characters in str, such as `'$'`, `'.'`, `'?'`,`'['`, so that they are treated as literal characters when used in `regexp`, `regexpi`, and `regexprep`. The translation inserts a backslash, or escape, character, `'\'`, before each special character in `str`.
`'wildcard'`	Translate all wildcard and `'.'` characters in `str` so that they are treated as literal wildcard characters and periods when used in `regexp`, `regexpi`, and `regexprep`. The translation replaces all instances of `''` with `'.'`, all instances of `'?'` with `'.'`, and all instances of `'.'` with `'\.'`.
`'flexible'`	Replace text in `str` with a regular expression that matches the text. If you specify `'flexible'`, then also specify a regular expression to use as a replacement: `newStr = regexptranslate('flexible',str,expression)`. The expression input can be a character vector or string scalar. This syntax is equivalent to `newStr = regexprep(str,expression,regexptranslate('escape',expression))`.

Type of Translation

Description

'escape'

Translate all special characters in str, such as '$', '.', '?','[', so that they are treated as literal characters when used in regexp, regexpi, and regexprep. The translation inserts a backslash, or escape, character, '\', before each special character in str.

'wildcard'

Translate all wildcard and '.' characters in str so that they are treated as literal wildcard characters and periods when used in regexp, regexpi, and regexprep. The translation replaces all instances of '*' with '.*', all instances of '?' with '.', and all instances of '.' with '\.'.

'flexible'

Replace text in str with a regular expression that matches the text. If you specify 'flexible', then also specify a regular expression to use as a replacement: newStr = regexptranslate('flexible',str,expression). The expression input can be a character vector or string scalar.

This syntax is equivalent to newStr = regexprep(str,expression,regexptranslate('escape',expression)).

matlab中linux和windows上regexp()的不同行为

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