string expression

Given a string, it loops through the Match to try to find the appropriate regular expression.

给定一个字符串，它对Match进行循环以试图找到相应的正则表达式。

Using a regular expression engine, it is easy to test if a string matches the pattern.

通过使用正则表达式引擎，很容易测试出字符串是否与模式匹配。

Returns a concatenated string created by evaluating a string expression over a set.

返回通过在集合上对字符串表达式计算而创建的连锁字符串.

In this case, that expression is a call to the built-in strftime() function, which returns a standard timestamp string of the form: "Fri Oct2314:51:012009".

在这种情况下，这个表达式调用内置的strftime（）函数，这个函数会返回一个标准时间戳字符串：“Fri Oct2314：51：012009”。

The iPod touch user string differs in that the beginning of the parenthesized expression is iPod, rather than iPhone.

iPod touch用户字符串的不同之处在于括号表达式的开头为iPod，而不是iPhone。

Note how the regular expression above captures only digits and dots, after "connection from" and a string of non-digits.

请注意，上面的正则表达式如何只捕获“connection from”和一个非数字的字符串后面的数字和点。

The Django URL dispatch system uses regular-expression configuration modules that map URL string patterns to Python methods called views.

Django URL分发系统使用了正则表达式配置模块，它可以将URL字符串模式映射为Python方法views。

Source: The input string the regular expression is matched against.

source：正则表达式所匹配的输入字符串。

For example, the regular expression ABC will match the string ABC but not DEF.

例如，正则表达式ABC将与字符串ABC匹配，但不与DEF匹配。