解析格式化字符串——隔离带引号的子字符串和花括号的 UUID [英] Parse a formatted string -- isolate quoted substring and curly braced UUID

问题描述

我正在尝试解析具有唯一标识符的操作系统实例列表.我正在寻找一种解析文本字符串的解决方案，并将值传递给两个变量.要解析的字符串如下:

I am trying to parse a list of operating system instances with their unique identifiers. I am looking for a solution to parse a text string, and pass the values into two variables. The string to be parsed is as followed:

"Ubuntu 9.10" {40f2324d-a6b2-44e4-90c3-0c5fa82c987d}

推荐答案

我一直在找借口阅读 sscanf():

I've been looking for an excuse to read the docs for sscanf():

sscanf($s, '"%[^"]" {%[^}]}', $os, $ident);
echo $os, "<br>", $ident;

跟进:出于兴趣，目前关于此问题的三个答案中:

Followup: For interest's sake, out of the three answers currently on this question:

sscanf: 0.92999792098999 seconds
preg_match: 4.73761510849 seconds
str_replace x2 + preg_split: 3.7644839286804 seconds

此处为基准.有趣的是，两个 str_replace() 和一个 preg_split() 比 preg_match() 更快.​​

Benchmark here. Funny that two str_replace() and a preg_split() are faster than the preg_match().

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