Regex to select something between a #OnlinePopup and _

Question

Can someone show me a regex to select #OnlinePopup_AFE53E2CACBF4D8196E6360D4DDB6B70 its okay to assume #OnlinePopup

~DCTM~dctm://aicpcudev/37004e1f8000219e?DMS_OBJECT_SPEC=RELATION_ID#OnlinePopup_AFE53E2CACBF4D8196E6360D4DDB6B70_11472026_1214836152225_6455280574472127786

Answer 1

NB: The following is .NET Regex syntax, modify for your flavour.

The following:

#[^_]+_[^_]+

will match:

• Hash
• One or more characters until an underscore
• Underscore
• One or more characters until an underscore

If the first bit is constant, and you want to be more specific you could use:

#OnlinePopup_[A-F0-9]+

This will match

• #OnlinePopup_ (exactly)
• One or more hex characters until a non Hex character

Answer 2

Simply matching anything between the first '#' and the first or last '_' will not work for your example since the string that you want returned has an underscore in it. If all the text that you want to match has only one underscore in it, you could use this regex:

/(#[^_]+_[^_]+)/

This matches an octothorpe (#), followed by two strings that do not contain an underscore, seperated by a single underscore.

Answer 3

Something a little simpler:

(\#OnlinePopup_.*?)_

Assuming your text starts with # and ends with _