What on earth is a regular expression? ¶Ī regular expression is a way to describe sets of strings. Finally, you can use regular expressions when searching the calibreīook list and when searching inside the calibre E-book viewer. TheĬalibre book editor can also use regular expressions in its Search and replaceįeature. Settings and Search & replace when editing the metadata of books in bulk. Search & replace in conversion options, metadata detection from filenames in the import There are a few places calibre uses regular expressions.
Where in calibre can you use regular expressions? ¶ So, take a step and follow me into the rabbit hole. Even those who understand regular expressions really well have trouble reading the more complex ones, but writing them isn’t as difficult- you construct the expression step by step. And while regular expressions themselves may seem like an arcane, black magic (or, to be more prosaic, a random string of mumbo-jumbo letters and signs), I promise that they are not all that complicated.
That being said, don’t be discouraged by any jargon, as I’ve tried to explain everything new. I’m going to try to explain those concepts as clearly as I can, but really can’t do without using them at all. I’m going to have to use some jargon and concepts that may seem complicated or convoluted. This is, inevitably, going to be somewhat technical- after all, regular expressions are a technical tool for doing technical stuff. I think I’m beginning to understand these regular expressions now… how do I use them in calibre?įirst, a word of warning and a word of courage ¶ In the beginning, you said there was a way to make a regular expression case insensitive? Well, these special characters are very neat and all, but what if I wanted to match a dot or a question mark?īut if I had a few varying strings I wanted to match, things get complicated? Hey, neat! This is starting to make sense! Where in calibre can you use regular expressions? This tutorial is a gentle introduction to getting you started with using regular expressions in calibre.įirst, a word of warning and a word of courage Regular expressions are features used in many places in calibre to perform sophisticated manipulation of e-book content and metadata. Typical of Bannon's work, each layered contsruction has been polished until the trick has a point, a purpose, and a place in the magical firmament.Īll in, High Caliber is a remarkable collection of card magic by modern master.All about using regular expressions in calibre ¶ Virtually all of the routines use regular cards, most are impromptu, and quite a few are self-working. Yet, notwithstanding this extraordinary bredth, no gaffs are employed and no difficult moves are required. High Caliber covers the magical waterfront with a fresh, original view. Collected from Bannon's publications over the ten years since his internationally best-selling Dear Mister Fantasy, you'll find an impressive variety as well: Here are the tricks and the clever, innovative thinking behind them. Over forty complete routines are described in Bannon's easy-going readable style. John Bannon's highly-engineered, yet easy-to-do brand of magic shines in this retrospective.
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