regex

Flutter detect UTF8 hashtags

坚强是说给别人听的谎言 提交于 2021-01-13 09:31:12
问题 in this patter, that can only detect non-utf8 hashtags, for example: #پوشاک_مردانه how can i update this pattern to detect both of non-utf8 and English characters : pattern: r"\B#+([\w]+)\b", 回答1: A single Unicode "word" char can be coded as (?:[_0-9A-Za-z\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0345\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0560-\u0588

Flutter detect UTF8 hashtags

与世无争的帅哥 提交于 2021-01-13 09:31:10
问题 in this patter, that can only detect non-utf8 hashtags, for example: #پوشاک_مردانه how can i update this pattern to detect both of non-utf8 and English characters : pattern: r"\B#+([\w]+)\b", 回答1: A single Unicode "word" char can be coded as (?:[_0-9A-Za-z\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0345\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0560-\u0588

提升Python性能的7个习惯

萝らか妹 提交于 2021-01-11 16:10:33
## 1\. 使用局部变量 尽量使用局部变量代替全局变量:便于维护,提高性能并节省内存。 使用局部变量替换模块名字空间中的变量,例如 ls = os.linesep。一方面可以提高程序性能,局部变量查找速度更快;另一方面可用简短标识符替代冗长的模块变量,提高可读性。 >本期小编推送2021初学者一定会用到的Python资料,含有小编自己呕心沥血整理的免费书籍/视频/在线文档和编辑器/源代码,关于`Python`的安装qun:850973621 ## 2\. 减少函数调用次数 对象类型判断时,采用isinstance()最优,采用对象类型身份(id())次之,采用对象值(type())比较最次。 ``` #判断变量num是否为整数类型type(num) == type(0) #调用三次函数type(num) is type(0) #身份比较isinstance(num,(int)) #调用一次函数 复制代码 ``` 不要在重复操作的内容作为参数放到循环条件中,避免重复运算。 ``` #每次循环都需要重新执行len(a)while i < len(a): statement#len(a)仅执行一次m = len(a)while i < m: statement 复制代码 ``` 如需使用模块X中的某个函数或对象Y,应直接使用from X import Y,而不是import X; X

springmvc+swagger构建Restful风格文档

南笙酒味 提交于 2021-01-10 17:00:27
  本次和大家分享的是java方面的springmvc来构建的webapi接口+swagger文档;上篇文章分享.net的webapi用swagger来构建文档,因为有朋友问了为啥.net有docpage文档你还用swagger,这里主要目的是让接口文档统一,当操作多种开发语言做接口时,如果有统一风格的api文档是不是很不错;还有就springcloude而言,微服务如果有很多的话,使用swagger自动根据服务serverid来加载api文档是很方便的。swagger设置比较简单,为了今后查找资料和使用方便故此记录下 准备工作 快速构建api文档 常用的细节 过滤默认错误api 添加授权token列 添加上传文件列 准备工作   首选需要一个springmvc项目,这里我用的是springboot+maven来快速构建, 要使用swagger只需要在maven中添加依赖包就行: 1 <dependency> 2 <groupId>io.springfox</groupId> 3 <artifactId>springfox-swagger2</artifactId> 4 <version> 2.6 . 1 </version> 5 </dependency> 6 <dependency> 7 <groupId>io.springfox</groupId> 8 <artifactId

深入理解 Python 的 re 模块

瘦欲@ 提交于 2021-01-10 12:33:13
re 模块中常用的函数 re.compile() 用法: re.compile() 用于编译正则表达式,生成一个正则表达式模式对象,具有各种操作的方法。 re.compile(pattern, flags=0) 示例: >>> import re >>> p = re.compile(r'ab*') >>> p re.compile(r'ab*') >>> dir(p) ['__class__', '__copy__', '__deepcopy__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'findall', 'finditer', 'flags', 'fullmatch', 'groupindex', 'groups', 'match',

Logstash Grok pattern with multiple matches

拈花ヽ惹草 提交于 2021-01-08 02:44:32
问题 I am attempting to write a grok expression that will result in multiple matches. I'm parsing a line that has 5 repetitions of the same pattern. I've been able to make a simple pattern with a regex that will return multiple matches but it seems that Grok doesn't work that way. I don't really understand Ruby so I haven't really inspected the code. Example input: 222444555 Pattern: (?<number>\d{3})* I would have expected output like this: "number" : [ [ "222", "444", "555" ] ] or something like

Logstash Grok pattern with multiple matches

自闭症网瘾萝莉.ら 提交于 2021-01-08 02:40:19
问题 I am attempting to write a grok expression that will result in multiple matches. I'm parsing a line that has 5 repetitions of the same pattern. I've been able to make a simple pattern with a regex that will return multiple matches but it seems that Grok doesn't work that way. I don't really understand Ruby so I haven't really inspected the code. Example input: 222444555 Pattern: (?<number>\d{3})* I would have expected output like this: "number" : [ [ "222", "444", "555" ] ] or something like

Logstash Grok pattern with multiple matches

♀尐吖头ヾ 提交于 2021-01-08 02:39:03
问题 I am attempting to write a grok expression that will result in multiple matches. I'm parsing a line that has 5 repetitions of the same pattern. I've been able to make a simple pattern with a regex that will return multiple matches but it seems that Grok doesn't work that way. I don't really understand Ruby so I haven't really inspected the code. Example input: 222444555 Pattern: (?<number>\d{3})* I would have expected output like this: "number" : [ [ "222", "444", "555" ] ] or something like

JS Regex to match a string with a set of 3 non-concsecutive characters

南笙酒味 提交于 2021-01-07 04:50:14
问题 So i have a string of numbers that i want to run a series of matching tests on. i have a string of numbers that represent locations on a board. it looks something similar to '024578' Then I test those strings for matches that represent three in a row. So testing for three in the same row is easy, because the numbers are consecutive. i just used the following code: const rowsRegex = /([012]{3}|[345]{3}|[678]{3})/g; now to check for three in the same column is proving difficult for my limited

JS Regex to match a string with a set of 3 non-concsecutive characters

被刻印的时光 ゝ 提交于 2021-01-07 04:48:41
问题 So i have a string of numbers that i want to run a series of matching tests on. i have a string of numbers that represent locations on a board. it looks something similar to '024578' Then I test those strings for matches that represent three in a row. So testing for three in the same row is easy, because the numbers are consecutive. i just used the following code: const rowsRegex = /([012]{3}|[345]{3}|[678]{3})/g; now to check for three in the same column is proving difficult for my limited