正则表达式分为3组

Question

我在下面有以下文字，我想分成3组。

"ax (0) 0 Critical Issues | 0 Non-critical",
"by master1 (0) 0 Critical Issues | 0 Non-critical",
"chef (1,507) 923 Critical Issues | 0 Non-critical",
"children (0) 0 Critical Issues | 0 Non-critical",
"chris test (1) 0 Critical Issues | 0 Noncritical",
"_Regression (8) 315 Critical Issues | 0 Noncriticals"

我希望格式化文本如下所示

ax, 0, 0
by master, 0, 0
chef, 923, 0
children, 0, 0
chris test 0, 0
_Regression 315, 0

这是否可以使用正则表达式？

Answer 1

根据你的文字，我认为这个正则表达式应该

([_a-zA-Z0-9 ]+) \([0-9,]+\) ([0-9,]+) Critical Issues \| ([0-9,]+) Non-?criticals?

然后，您需要使用bracket-matching从所需的每一行中提取三个值并对其进行适当格式化。

基本上你把正则表达式的一部分放在括号(，)之间，它将模式的那部分标记为分组，允许你识别输入字符串的那部分括号内的模式匹配。

一个简单的例子：

输入字符串：

"456-abc-123",
"387-zxf-345",
"830-fft-492"

正则表达式：

[0-9]+-([a-z]+)-[0-9]+

使用这种模式，我们可以选择为每个字符串提取([a-z]+)匹配的文本，这将给我们提供：

abc
zxf
fft

如果您能说出您想要使用的语言，我们就能够提供代码解决方案。

---

python中的解决方案：

import re

text = ["ax (0) 0 Critical Issues | 0 Non-critical",
"by master1 (0) 0 Critical Issues | 0 Non-critical",
"chef (1,507) 923 Critical Issues | 0 Non-critical",
"children (0) 0 Critical Issues | 0 Non-critical",
"chris test (1) 0 Critical Issues | 0 Noncritical",
"_Regression (8) 315 Critical Issues | 0 Noncriticals"]

for entry in text:
    m = re.search(r'([_a-zA-Z0-9 ]+) \([0-9,]+\) ([0-9,]+) Critical Issues \| ([0-9,]+) Non-?criticals?', entry)
    print "%s, %s, %s" % (m.group(1), m.group(2), m.group(3))

输出：

ax, 0, 0
by master1, 0, 0
chef, 923, 0
children, 0, 0
chris test, 0, 0
_Regression, 315, 0

---

红宝石的解决方案：

text = ["ax (0) 0 Critical Issues | 0 Non-critical",
"by master1 (0) 0 Critical Issues | 0 Non-critical",
"chef (1,507) 923 Critical Issues | 0 Non-critical",
"children (0) 0 Critical Issues | 0 Non-critical",
"chris test (1) 0 Critical Issues | 0 Noncritical",
"_Regression (8) 315 Critical Issues | 0 Noncriticals"]

for entry in text
    m = /([_a-zA-Z0-9 ]+) \([0-9,]+\) ([0-9,]+) Critical Issues \| ([0-9,]+) Non-?criticals?/.match(entry)
    printf("%s, %s, %s\n", m[1], m[2], m[3])
end

同时输出：

ax, 0, 0
by master1, 0, 0
chef, 923, 0
children, 0, 0
chris test, 0, 0
_Regression, 315, 0