smatch

Source1 classXml {2 Public:3typedef std::p airNodet;4 StaticStd::vectorConstStd::wstring XML)5 {6Std::vectorresult;7 8 intStackcount =0;9 std::wstring TagName;Ten Std::wstring::const_iterator OneCuriter =std::begin (XML), ABegiter = Std::end (XML), Enditer =std::end (XML), -Cbegiter = Std::end (XML), Cenditer =std::end (XML); - the Std::wsmatch Smatch; - while(Std::regex_search (Curiter, Std::end (XML),

namespacestd::tr1;using namespacestd;stringStrcontent ="onclick=\ "verycd.trackevent (' base ', ' home big push ', ' Condor ');";voidTest1 () {stringStrText =strcontent; stringStrregex ="Home Big Push"; Regex regexpress (Strregex); Smatch MS; cout"*****************************"Endl; cout"Test 1"Endl; while(Regex_search (StrText, MS, regexpress)) { for(string:: Size_type i =0; i i) {coutEndl; } StrText=ms.suffix (). STR (); } cout"*****

a reload of regex_search, which accepts a match_results type parameter. When regex_search performs a match, it uses a match_results type object to report the matched subexpression. The class template match_results uses the iterator type used by an input sequence to parameterize. template class match_results; typedef match_results cmatch; typedef match_results wcmatch; typedef match_results smatch; typedef

performs a match, it reports a matching subexpression through an object of type match_results. The class template match_results is parameterized using an iterator type used for an input sequence. Template Class allocator=std::allocator Class Match_ Results typedef match_results typedef match_results typedef match_results typedef match_results We will use std::string and so be mindful of typedef smatch Iterator> 's initials. If regex_search return

entire string str The lookup is a substring that is found in the entire string and satisfies the pattern string. That is, it returns true as long as the satisfy pattern string exists in Str. BOOL match = Regex_search (str, e); Finds substrings in string str that match e rules However, in many cases, it is not enough to return a matching bool quantity, we need to get the matching substring. Then you need to group the matching strings in the pattern string, referring to the "basic rules for ma

This article will be as simple as possible to summarize how to build up the framework of this SQL system.A regular Expression parsing statementYou first need to use the C + + Regex library:#include It is recommended to learn the basic syntax of regular expressions in the novice tutorials.Then, create a new expression. Assume that the statement you are parsing now is create TABLE (Col1,col2,...) to filenameRegex R ("CREATE TABLE \ \ ((. +) \ \) to ([^]+)");Note that in C + + you also want to esca

string str Searching is a substring that finds and satisfies the pattern string in the entire string. That is, if 'str' contains a pattern string that meets the condition, true is returned. Bool match = regex_search (str, e); // search for the substring matching the e rule in the str string However, in many cases, it is not enough to return a matched bool volume. We need to obtain the matched substring. In this case, you need to group matching strings in the mode string. For details, refer to [

matching bool quantity, we need to get the matching substring. Then you need to group the matching strings in the pattern string, referring to the "basic rules for matching strings" 12th. Once the smatch is passed into the regex_search, you get a string that satisfies each sub-group. Smatch M;bool found = Regex_search (str, M, e); for (int n = 0; n The substitution is also done based on the pattern strin

Regular Expressions are powerful. The regular expressions in each language are similar. Learn one, and others are quick to learn, JS Regular Expression highlights blog: 1 JavaScript Regexp Object Reference Manual W3C http://www.w3school.com.cn/js/jsref_obj_regexp.asp 2 JavaScript http://www.yaosansi.com/post/745.html using regular expressions Regular Expression http://www.iteye.com/topic/30728 of 3 JS 4 JavaScript classic Regular Expression http://www.dedecms.com/html/xitongyanshi/20070423/38637

relative path ' spreceding the changed URL prefix, such as yun_qi_img/abc.jpg "/> and ' Function: Detecturl ' Function: The remote file relative path in the replacement string is http://.. Absolute path at beginning' Parameter: scontent the text content of a Web page with a relative path to be processed' sURL the URL of the Remote Web page itself, used to parse the relative path' Return: Replaces the new page text content after the relative link is an absolute linkFunction Detecturl (Scontent,s

In the regex_search function, the first matching result found is saved to a Smatch class. However, if there are multiple matching results in the search string, you need to implement it yourself.In Smatch, there are two members, the official documents are as follows:Iterator First:An iterator denoting the position of the the match.Iterator secondAn iterator denoting the position of the end of the match.There

() {std::couttestreplace == = = = = =" Std::endl; Replace the absolute path of all img src with the relative path starting with images . You can use grouping . Std::regex Img_regex (img [^> ]*src=[\ "']{1}" ([^\ "']*" \\\\ (images\\\\[^\ "']*[\" ']{1}[^>]*>) "); Std::smatch Color_match; Std::string rep = "$1$3"; std::string tmp = Std::regex_replace (KHTMLSNIPPET,IMG_REGEX,REP); Std::couttmp Std::endl;} void Testsearch () { std::cout

of Case sensitivity) ##Perform another upgrade. The second parameter can also be a function.Copy codeThe Code is as follows:Var sToChange = "The sky is red .";Var reRed =/red /;Var sResultText = sToChange. replace (reRed, function (sMatch ){Return "blue ";});Alert (sResultText );In this example, the value of sMatch in the function is always "red" (because this is the only matching mode). The first appearan

expression to find all the matching var strnewbbb = Strbbb.replace (/s/gi, "# #"); Replace All "s" (regardless of case) with # # To upgrade again, the second parameter can also be a function Copy Code code as follows: var stochange = "The sky is red."; var rered =/red/; var sresulttext = stochange.replace (rered, function (Smatch) { Return "Blue"; }); alert (Sresulttext); In this example, the value of the

-z] ', ' abc1j2^d ')OUT[46]: [' 1 ', ' 2 ', ' ^ ', ' ']in [+]: Re.findall (' [^aeiou] ', ' Hello World ')OUT[47]: [' H ', ' l ', ' l ', ' ', ' w ', ' R ', ' L ', ' d ']* Match (not) numeric charactersmetacharacters: \d [0-9] \d [^0-9]Match rule: \d matches any numeric character\d matches any non-numeric characterMatching example: \d{3}--' 123 'in [+]: Re.findall (' \d{3} ', ' Hello 1234 ')OUT[49]: [' 123 ']in [[]: Re.findall (' \d{3} ', ' Hello 1234 ')OUT[50]: [' hel ', ' lo ']* Matches (not) a

. Commonly used meta-charactersCodeDescription.Match any character except the line feed\wMatch letters or numbers or underscores or kanji\sMatch any white space character\dMatching numbers\bMatch the start or end of a word^Match the start of a string$End of Match string The regular expression engine usually provides a way to "test whether a specified string matches a regular expression", such as the Regexp.test () method in JavaScript or. NET in the

Complex mode:Groupvar redogdog=/dogdog/g;---------------var redogdog=/(dog) {2}/g;* Citation: (note with parentheses and without parentheses)var smatch= "#123456789";var renum=/(# (\d+))/;Renum.test (Smatch);Alert (regexp.$1+ "" +regexp.$2);var schange= "1234 5678";var rematch=/(\d{4}) (\d{4})/; //Pay attention to spaces in the middlevar newstr=schange.replace (rematch, "$ $"); //not "regexp.$2 regexp.$1"Al

string and satisfies the pattern string. That is, it returns true as long as the satisfy pattern string exists in Str.bool match = Regex_search (str, e); //Find substrings in string str that match e rulesHowever, in many cases, it is not enough to return a matching bool quantity, we need to get the matching substring. Then you need to group the matching strings in the pattern string, referring to the "basic rules for matching strings" 12th. Once the smatch