matching shell globs as regular expressions

... is sometimes referred to as the backslash plague, and it is one reason why regular expressions are easier in Perl than in Python. On the down side, Perl mixes regular expressions with other syntax, ... can't represent 4 as IIII; instead, it is represented as IV (“1 less than 5”). The number 40 is written as XL (10 less than 50), 41 as XLI, 42 as XLII, 43 as XLIII, and then 44 as XLIV (10 less ... keep your expressions maintainable 7.5 Verbose Regular Expressions So far you've just been dealing with what I'll call “compact” regular. .. same regular expression as the last step,...

Ngày tải lên: 14/12/2013, 14:15

... regular expressions as easy as possible In fact, this book demonstratesnearly every concept it presents by way of example so you can easily imitate and trythem yourself Regular expressions help ... implementations of regular expressions You will find regular expressions used in Unix command-line tools like vi (vim), grep, and sed, among others. You will find regular expressions in programming ... treated specially as metacharacters A metacharacter has special meaning in regular expressions and is re-served A regular expression in the form [0-9] is called a character class, or sometimes...

Ngày tải lên: 18/02/2014, 06:20

... 0 or 1 times, but as few times as possible {n,}? Match at leastn times, but as few times as possible {x,y}? Match at leastx times, and no more thany times, but as few times as possible Table ... Match 0 or 1 times, but as few times as possible {n,}? Match at leastn times, but as few times as possible {x,y}? Match at leastxtimes, no more thanytimes, and as few times as possible *+ Match ... {n,} Match at leastn times {x,y} Match at leastx times, but no more thany times *? Match 0 or more times, but as few times as possible +? Match 1 or more times, but as few times as possible ??...

Ngày tải lên: 23/04/2014, 01:21

... to Perl Regular Expressions in SAS 9 Ron Cody, Robert Wood Johnson Medical School, Piscataway, NJ Introduction Perl regular expressions were added to SAS in Version 9. SAS regular expressions ... etc.) as well as specific character values. Since SAS already has such a powerful set of string functions, you may wonder why you need regular expressions. Many of the string processing tasks ... character functions or regular expressions. However, regular expressions can sometimes provide a much more compact solution to a complicated string manipulation task. Regular expressions are especially...

Ngày tải lên: 29/04/2014, 14:45

... digit, there is amatch for the regular expression pattern \d\d\d You can see this matching process in action by using the Komodo Regular Expressions Toolkit Open theKomodo Regular Expression Toolkit, ... preceding character class shown in the command line, as follows: findstr /N [0-9][0-9][0-9] ABC123.txt 53 Simple Regular Expressions Trang 5You will find matches on four lines, as shown in Figure ... once,let’s move on to look at matching characters that can occur a variable number of times 55 Simple Regular Expressions Trang 7Figure 3-13Matching Optional Characters Matching literal characters...

Ngày tải lên: 13/08/2014, 12:21

... such as Theodoreor Theatre Similarly, assuming that you used the pattern Thein a case-insensitive mode, you would also (possibly as an undesired side effect) match sequences of characters such as ... outside a character class, does not have the negation meaning that it has when used as the first character inside a character class. Trang 19Figure 6-2How It Works The regular expression engine ... characters The Some tools, such as PowerGrep, are in multiline mode by default, as shown here 1. Open PowerGrep, and check the Regular Expressions check box 2. Enter the regular expression pattern...

Ngày tải lên: 13/08/2014, 12:21

... teaching regular expressions, but when you use regular 232 Sensitivity and Specificity of Regular Expressions expressions as a developer, you will typically be using regular expressions ... that regular expressions can be hard to write Regular expressions can also be hard to read, whether they were written by somebody else or by you, even a short time ago When regular expressions ... How Much Should the Regular Expressions Do? Most of the examples earlier in this book use a range of tools with regular expression functionality to apply regular expressions That’s great...

Ngày tải lên: 13/08/2014, 12:21

... interpreted as regular expressions This is the default behavior even if the /r switch is not specified /l Means that regular expressions cannot be interpreted as regular expressions ... that has an uppercase A, followed by between two and four uppercase Bs, followed by an uppercase C. Modes OpenOffice.org Writer supports both case-insensitive (the default) and case-sensitive matching. ... AC, as shown in Figure 12-3. Each of the matched character sequences consists of an uppercase A, followed by zero or one uppercase B, followed by an uppercase C. Figure 12-3 285 Regular Expressions...

Ngày tải lên: 13/08/2014, 12:21

... quantifier.[ ] Matches a character class Character class ranges are supported [^ ] Matches any character except those in the character class Many aspects of regular expressions are not supported for ... databases are held as operating tem files The Windows operating system does not support case-sensitive filenames; therefore, MySQL, sys-on Windows, behaves as though database names are case insensitive ... database called BRegExp First, you need to create it The names of database objects in MySQL on the Windows platform are case sensitive, with the excep-tion of the databases themselves The reason...

Ngày tải lên: 13/08/2014, 12:21

... expressions are based on Perl regular expressions Just as Perl regularexpression support has evolved over time, so the support for regular expressions has evolved in JScriptand JavaScript The following ... for matching text in the Stringobject The replacement string can be specified liter-ally or can be a function call Metacharacters in JavaScript and JScript JavaScript and JScript regular expressions ... of the lastIndexproperty was 8, because the match (thecharacter sequence 99) consisted of character positions 6 and 7 When the test text was 99 Hello, thevalue of the lastIndexproperty was 2, because...

Ngày tải lên: 13/08/2014, 12:21

... string into an array, based on matching of a regular expression, case-insensitive matching sql_regcase() Creates a valid regular expression pattern to attempt case-insensitive matching of a specified ... a regular expression pattern case insensi-tively, and if matches are found, they are replaced split() Splits a string into an array, based on matching of a regular expression, case-sensitive matching ... options); The Match and Matches Classes The Matchclass contains a single match The MatchCollectionclass contains a collection of matches.The Match Class The Matchclass has no public constructor Therefore,...

Ngày tải lên: 13/08/2014, 12:21

... the other uses of regular expressions you have seen in this book, the regular expression has been applied to a string value. In W3C XML Schema, it is possible to use regular expressions together ... Unicode character class in W3C XML Schema documents, the character class is specified as follows: \p{characterClass} The following table summarizes the Unicode character classes supported in W3C ... metacharacters can be used, read about how Unicode is relevant to regular expressions in W3C XML Schema documents. 603 Regular Expressions in W3C XML Schema 27_574892 ch24.qxd 1/7/05 11:04 PM...

Ngày tải lên: 13/08/2014, 12:21

... the Regular Expression Matchingm Matching treats the test text as multiple lines s Matching treats the test text as a single line You have seen earlier in this chapter examples of using the i(case-insensitive ... Character Class 1. Type the following code in a text editor, and save it as CharacterClass.pl: print “\n\nThe string you entered was: ‘$myTestString’.\n”; print “The pattern you entered was: ‘$myPattern’.\n”; ... after the last character in a string, irrespective of mode (?<= ) Positive lookbehind \p{charClass} Matches a character that is in a specified Unicode character class or block \P{charClass} Matches...

Ngày tải lên: 13/08/2014, 12:21

... above $beast = "dromedary"; # capitalize various parts of $beast $capit = ucfirst($beast); # $capit = "\u\L$beast"; # $capall = uc($beast); # $capall = "\U$beast"; # $caprest = lcfirst(uc($beast)); ... challenging you, buy a copy of the Panther Mastering Regular Expressions, by Jeffrey Friedl; O'Reilly & Associates (1997) This book is dedicated to explaining regular expressions from a practical perspective ... Pattern Matching, is by far the largest chapter Recipes include converting a shell wildcard into a pattern, matching letters or words, matching multiple lines, avoiding greediness, and matching...

Ngày tải lên: 31/03/2014, 17:15

... flowers were emasculated prior to anthesis and lanolin paste was applied at anthesis Emasculated flowers treated with or without hormones (NAA, GA3), resulted in only seedless fruits Emasculation ... (i.e only fruits of at least 76 g) were considered as true parthenocarpic fruit, while remaining seedless fruits were considered as “knots”, which are characterized as small seedless fruits discarded ... Pollination was done by vibrating the main shoot two times per week Previously, 20°C was reported as an optimum temperature for flowering and fruit set in C annuum, and a temperature below 16°C was reported...

Ngày tải lên: 11/08/2014, 11:21

... Institution He was one of the growing numbers of English-educated Asians, exposed to Western ideas, religion and art He was taught by Richard Walker, the first Art Inspector of schools Walker was the ... business He soon took over from his father as the main photographer The 20s and 30s were prosperous for Huang who was part of the western-educated middle-class He was relatively unaffected by the politicization ... Arts, or NAFA, (click to new slide) was restored in 1946 Its educational philosophy was steered from Chinese nationalism towards the social context of Southeast Asia Like Huang Wei, the Nanyang artists...

Ngày tải lên: 12/10/2015, 17:36

... increases because of the increase of injection pressure and the increase of the injected fuel mass due to the increased effective flow area with increased nozzle needle lift Therefore, as shown ... operation as load is increased, more fuel is injected later in the cycle It can be assumed that the oxygen concentration in the prechamber decreases as more fuel is injected Therefore, the increases ... increases the Soot Also it decreases isfc as well than baseline It must be noted here that as an engine is generally operated for a short time intervals at full load condition, the increasing...

Ngày tải lên: 05/09/2013, 16:11

... hardwood wetland, eastern Arkansas: Wetlands, v 16, no 3, p 334–346.) (Used with permission.) 41 COASTAL TERRAIN Coastal terrain, such as that along the eastcentral and southern coasts of the United ... be used directly by microorganisms as food sources and are rapidly degraded in many situations Other compounds, such as chlorinated solvents, are not as easily assimilated The rate of biodegradation ... INTRODUCTION As the Nation’s concerns over water resources and the environment increase, the importance of considering ground water and surface water as a single resource has become increasingly evident...

Ngày tải lên: 06/03/2014, 15:21

... America, and Asia) presents a dilemma Either they were associated with the land masses prior to separation, cichlid origins being at least 100 Ma, or cichlids maintained contact between land masses ... Eocene (?) acanthurid fossil from Antigua, West Indies (previously identified as Naso) has been placed in the genus Eonaso, as an extinct putative 22 sister taxon to N a s o (Tyler, 1997) Today, no ... boundaries, as in the changes associated with the mass mortality of Diadema in the Caribbean (Hughes, 1994), where the echinoid may have replaced fishes as the dominant grazer prior to the mass mortality...

Ngày tải lên: 06/03/2014, 18:21