hyphen punctuation

classes (square brackets) Description in the PHP manual: The left square brackets start the description of a character class and end with square brackets. A separate right brace has no special meaning. If a Right square bracket needs to be a member of a character class, you can write it at the first character of the character class (if ^ is used, it is the second one) or use an escape character. A character class matches a single character in the target string. this character must be one of t

strings to be matched when searching the text subject. A regular expression is used as a template to match a character pattern with the searched string. Here are some examples of regular expressions that may be encountered:[Code] JScript VBScript match/^ \ [\ t] * $/"^ \ [\ t] * $" matches a blank line. /\ D {2}-\ D {5}/"\ D {2}-\ D {5}" verify that an ID number consists of two digits, A hyphen and a five-digit combination. / The following table show

searching the text subject. A regular expression is used as a template to match a character pattern with the searched string. Here are some examples of regular expressions that may be encountered:[Code] JScript VBScript match/^ \ [\ t] * $/"^ \[\ T] * $ "matches a blank row. /\ D {2}-\ d {5}/"\ d {2}-\ d {5}" verify that an ID number consists of two digits, A hyphen and a five-digit combination./ The following table shows a complete list of metachara

matching mode. Next we will introduce the use of regular expressions by combining its syntax step by step. Ii. Regular Expressions for first-time contact Let's first understand some basic concepts of regular expressions. As a Representation Language, regular expressions define a set of descriptions to describe various character classes. The following is a definition in msdn. (MS-help: // Ms. VSCC/ms. msdnvs.2052/cpgenref/html/cpconcharacterclasses.htm) Character escape tableCharacter classDescr

); // search for strings. Return (r); // return the boolean result. } [/Code]Return Value: 18 Regular expression syntaxA regular expression is a text mode consisting of common characters (such as characters A to Z) and special characters (such as metacharacters. This mode describes one or more strings to be matched when searching the text subject. A regular expression is used as a template to match a character pattern with the searched string. Here are some examples of regular expressions tha

1. \ B: indicates the start or end of a word. It may be a space, punctuation, or line feed, but \ B does not match any of them. This refers to any position in these elements.Example: \ bhi \ B: search for all the "hi" words in the text, excluding the words "him" and "history ".1.1 ^: match the start of a string, specifically the start of a paragraph.1.2 $: End of matching string. It refers to the end of a paragraph, both of which are a subset of \ B.R

dates:s = "Deadline is30/05/1999, firm" date = "%d%d/%d%d/%d%d%d%d" Print (String.sub (S, string.find (s, date)))-- 30/05 /1999The following table lists all the character classes that Lua supports:. Any character%a letter%c control character%d number%l lowercase%p punctuation character%s empty char%u capital Letter%w Letter and number%x hex digit%z Represents the 0 characterThe uppercase form of the abo

returned.ExampleThe following example shows the use of the search method.function Searchdemo (){var r, re; Declares a variable.var s = "The rain in Spain falls mainly in the plain.";re =/falls/i; Creates a regular expression pattern.r = S.search (re); Finds a string.return (R); Returns a Boolean result.}return value: 18Regular expression syntaxA regular expression is a text pattern consisting of ordinary characters, such as characters A through z, and special characters (called metacharacters).

First, common usageF1 Displays Help content for the current program or Windows.F2 Renaming the selected fileF3 when you're on the desktop, open the Find All Files dialog boxF10 or Alt activates the current program's menu barWindows key or Ctrl+esc open Start menuCtrl+alt+delete Open Windows Task ManagerCtrl+shift+esc Open Windows Task ManagerDelete Deletes the selected selection item and, if it is a file, will be put into the Recycle BinShift+delete Deletes the selected item, if it is a file, it

/regexp.reference.repetition.php 6. Character class (square brackets) Description in the PHP manual: The opening parenthesis begins with a description of the character class and ends with square brackets. A separate right parenthesis does not have a special meaning. If a right parenthesis is required as a member of a character class, it can be written in the first character of the prompt (if the ^ is reversed, then the second) or the escape character is used. A character class matches a