February 2004
Intermediate to advanced
160 pages
2h 27m
English
Content preview from Sams Teach Yourself Regular Expressions in 10 Minutes
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Lesson 3. Matching Sets of Characters
In this lesson you’ll learn how to work with sets of characters. Unlike the ., which matches any single character (as you learned in the previous lesson), sets enable you to match specific characters and character ranges.
Matching One of Several Characters
As you learned in the previous lesson, . matches any one character (as does any literal character). In the final example in that lesson, .a was used to match both na and sa, . matched both the n and s. But what if there was a file (containing Canadian sales data) named ca1.xls as well, and you still wanted to match only na and sa? . would also match c, and so that filename would also be matched.
To find n or s you would not want to match any character, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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