正则表达式只匹配逗号但不在多个括号内 [英] Regex to match only comma's but not inside multiple parentheses

问题描述

好的，我有这种情况，其中逗号在括号内，我想匹配仅在括号内的逗号。

Okay, i have this case where comma are inside parenthesis, I want to match the commas that are only outside the parenthesis.

Input : color-stop(50%,rgb(0,0,0)), color-stop(51%,rgb(0,0,0)), color-stop(100%,rgb(0,0,0)))

Output(i'm looking for):color-stop(50%,rgb(0,0,0))**,** color-stop(51%,rgb(0,0,0))**,** color-stop(100%,rgb(0,0,0)))

这是我的正则表达式： -

And this is my regex:-

/(?![^(]*\)),/g

可悲的是，当有一个时，它不起作用多个括号：（

The sad part is, it doesn't work when there is a multiple parenthesis :(

正则表达式

推荐答案

这是适用于您输入的正则表达式。

Here is the regex which works perfectly for your input.

,(?![^()]*(?:\([^()]*\))?\))

DEMO

说明：

,                        ','
(?!                      look ahead to see if there is not:
  [^()]*                   any character except: '(', ')' (0 or
                           more times)
  (?:                      group, but do not capture (optional):
    \(                       '('
    [^()]*                   any character except: '(', ')' (0 or
                             more times)
    \)                       ')'
  )?                       end of grouping, ? after the non-capturing group makes the
                           whole non-capturing group as optional.
  \)                       ')'
)                        end of look-ahead

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