Ruby 零宽度负查找后断言无法按预期工作

不知何故，如果前面有\，则零宽度负查找后面断言-不匹配“）不起作用

这就是我现在拥有的：

text = <<EOT
h1=_("This is a test")
h2=_("This is a test \"quotes\"")
h3=_("This is a test (\"quotes\")")
EOT

text.scan(/_\("(.*?)(?<!\\)"\)/)

=> [["This is a test"], ["This is a test \"quotes\""], ["This is a test (\"quotes"]]

---

最后一个匹配错误。

您的文本不包含任何反斜杠（

\

）

转义反斜杠或使用以下形式：

text = <<'EOT'
h1=_("This is a test")
h2=_("This is a test \"quotes\"")
h3=_("This is a test (\"quotes\")")
EOT
puts text
p text.scan(/_\("(.*?)(?<!\\)"\)/)

text = <<EOT
h1=_("This is a test")
h2=_("This is a test \"quotes\"")
h3=_("This is a test (\"quotes\")")
EOT
puts text

text = <<'EOT'
h1=_("This is a test")
h2=_("This is a test \"quotes\"")
h3=_("This is a test (\"quotes\")")
EOT
puts text
p text.scan(/_\("(.*?)(?<!\\)"\)/)