vb.net barcode component Some Examples of Regular Expressions in Java

Encode Code 39 Extended in Java Some Examples of Regular Expressions

Table 15-3. Some Examples of Regular Expressions
USS Code 39 Drawer In Java
Using Barcode maker for Java Control to generate, create Code 39 Extended image in Java applications.
www.OnBarcode.com
Code 3 Of 9 Recognizer In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Search String 'document[a-z]' 'document[A-Za-z]'
GS1 - 13 Generator In Java
Using Barcode encoder for Java Control to generate, create EAN13 image in Java applications.
www.OnBarcode.com
Printing 2D In Java
Using Barcode creation for Java Control to generate, create Matrix image in Java applications.
www.OnBarcode.com
Description
UPC - 13 Generation In Java
Using Barcode encoder for Java Control to generate, create EAN13 image in Java applications.
www.OnBarcode.com
Printing QR Code In Java
Using Barcode generator for Java Control to generate, create Quick Response Code image in Java applications.
www.OnBarcode.com
Returns any lines containing the string document followed by any single letter from the range a through z. Returns any lines containing the string document followed by the letters A through Z or a through z. Note that no comma or other character is needed to separate possibilities within square brackets.
Create Data Matrix In Java
Using Barcode creation for Java Control to generate, create Data Matrix image in Java applications.
www.OnBarcode.com
2/5 Industrial Creator In Java
Using Barcode printer for Java Control to generate, create 2/5 Industrial image in Java applications.
www.OnBarcode.com
C HA PTER 15 WO RK ING WIT H TEXT FI LES
Painting ANSI/AIM Code 39 In C#
Using Barcode printer for .NET Control to generate, create ANSI/AIM Code 39 image in .NET applications.
www.OnBarcode.com
Code 3 Of 9 Encoder In Java
Using Barcode generation for Android Control to generate, create Code39 image in Android applications.
www.OnBarcode.com
Table 15-3. Some Examples of Regular Expressions
Painting GS1-128 In None
Using Barcode drawer for Software Control to generate, create EAN / UCC - 13 image in Software applications.
www.OnBarcode.com
Make UCC.EAN - 128 In .NET
Using Barcode creation for ASP.NET Control to generate, create EAN 128 image in ASP.NET applications.
www.OnBarcode.com
Search String 'document.'
Create ECC200 In Objective-C
Using Barcode printer for iPhone Control to generate, create Data Matrix image in iPhone applications.
www.OnBarcode.com
Barcode Drawer In None
Using Barcode printer for Software Control to generate, create Barcode image in Software applications.
www.OnBarcode.com
Description
Making QR-Code In Visual Studio .NET
Using Barcode encoder for ASP.NET Control to generate, create QR Code ISO/IEC18004 image in ASP.NET applications.
www.OnBarcode.com
Create Barcode In Java
Using Barcode generation for BIRT Control to generate, create Barcode image in BIRT reports applications.
www.OnBarcode.com
Returns any lines containing the string document followed by any other character. The period is used as a wildcard signifying any single character. Returns any lines containing the string document followed by any number. Returns any lines containing the string document followed by any character. Returns any lines that have the string document at the beginning. The caret symbol (^) tells grep to look only at the beginning of each line. Returns any line that has the string document at the end of the line. The dollar sign symbol ($) tells grep to look for the string only at the end of lines. Returns lines that have the string document in them but not if it s followed by the numbers 1 through 6. When used in square brackets, the caret character (^) produces a nonmatching list a list of results that don t contain the string.
Scan Code 3 Of 9 In VB.NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Drawing ANSI/AIM Code 128 In Objective-C
Using Barcode generator for iPhone Control to generate, create Code 128C image in iPhone applications.
www.OnBarcode.com
'document[[:digit:]]' 'document[[:alpha:]]' '^document'
Painting Barcode In None
Using Barcode creation for Office Excel Control to generate, create Barcode image in Excel applications.
www.OnBarcode.com
Make Barcode In None
Using Barcode creation for Software Control to generate, create Barcode image in Software applications.
www.OnBarcode.com
'document$'
'document[^1-6]'
grep is very powerful. It can be complicated to master, but it offers a lot of scope for performing extremely precise searches that ensure you find only what you re seeking. It s well worth reading through its man pages. You can also refer to books on the subject, of which there are many. A good example is Regular Expression Recipes: A Problem-Solution Approach, by Nathan A. Good (1-59059-441-X; Apress, 2004).
Comparing Text Files
If you want to compare the differences between two text files, one way to do this is to use the diff command. This is designed primarily to uncover small changes in otherwise identical documents, such as revisions made by another person. Of course, it can also be used to prove that two files are identical. If you run the files through diff, and it shows no output, it has been unable to spot any differences. diff is ordinarily used like this:
diff mytextfile1 mytextfile2
If diff spots any differences between the files, the results are a little more complicated than you might be used to. Any lines that are different within the files will appear on screen. Those lines that are identical won t be displayed. Lines preceded with a left angle bracket (<) are from the first file, while those with a right angle bracket (>) are from the second file. For a different display, you could type something like this:
CHAPTER 15 WORKING WITH TEXT FILES
diff y mytextfile1 mytextfile2
This places the two lists side-by-side and highlights lines that are different with a pipe symbol (|). However, it requires a lot more screen space than using diff without the -y option.
Note When you use the -y command option with diff, it will struggle to fit the output in a standard GNOME Terminal window. If it is maximized on a 1024 768 resolution screen, it should be just large enough to fit the information in, depending on the complexity of the files being compared.
By specifying the -a command option, you can make diff process binary files, too. This is a handy way of comparing virtually any kind of files, including program files, to see if they re identical. If there s no output from diff, then the two files are identical. If your screen fills with gibberish, then the files are clearly different. Incidentally, if you want to compare three documents, you can use a very similar command: diff3. Check the command s man page to learn more about how it works.
Copyright © OnBarcode.com . All rights reserved.