This week at LWN: Evolutionary development of a semantic patch using Coccinelle
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Creating patches is usually handwork; fixing one specific issue at a time. Once in a while though, there is janitorial work to be done or some infrastructure to change. Then, a larger number of issues have to be taken care of simultaneously, yet all of them are following the same basic pattern, e.g. a replacement. Such tasks are often addressed at the source-code level using scripts in sed, perl, and the like. This article examines the usage of Coccinelle, a tool targeted at exactly those kinds of repetitive patching jobs. Because Coccinelle understands C syntax, though, it can handle those jobs much more easily.
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