How do you separate a stock's earnings surprise from its guidance when reading a report?

Earnings headlines usually focus on whether a company beat or missed consensus, but for many names the forward guidance and the tone of management commentary move the price more over the following weeks. I find it useful to split the release into three parts: the reported numbers versus expectations, the change in guidance versus the prior quarter, and the qualitative remarks about demand, margins and capital allocation. Looking at European large caps over recent reporting seasons, it is common to see a beat on earnings paired with cautious guidance produce a flat or negative reaction, which suggests the market is already pricing in forward expectations. I am not fully certain how consistent that pattern is across sectors, so I would be cautious about generalising from it. Where do you draw the line between a one-off item that should be stripped out of the numbers and a recurring cost that belongs in the picture, and how do you check that call against the company's own history?