锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲va久久久噜噜噜久久天堂,成人资源影音先锋久久资源网,亚洲熟妇无码另类久久久http://www.shnenglu.com/shifan3/category/3012.htmlEverything is template...zh-cnTue, 20 May 2008 11:26:24 GMTTue, 20 May 2008 11:26:24 GMT60[yc]Xpressive綆浠?/title><link>http://www.shnenglu.com/shifan3/archive/2006/07/27/10590.html</link><dc:creator>shifan3</dc:creator><author>shifan3</author><pubDate>Thu, 27 Jul 2006 08:27:00 GMT</pubDate><guid>http://www.shnenglu.com/shifan3/archive/2006/07/27/10590.html</guid><wfw:comment>http://www.shnenglu.com/shifan3/comments/10590.html</wfw:comment><comments>http://www.shnenglu.com/shifan3/archive/2006/07/27/10590.html#Feedback</comments><slash:comments>4</slash:comments><wfw:commentRss>http://www.shnenglu.com/shifan3/comments/commentRss/10590.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/shifan3/services/trackbacks/10590.html</trackback:ping><description><![CDATA[Xpressive鏄竴涓狢++鐨勬鍒欒〃杈懼紡搴擄紝鐩墠鏄疊oost鐨勫欓夊簱銆?br>Xpressive鍜孊oost.Regex鐨勫尯鍒緢澶с傞鍏堬紝Xpressive鏄竴涓函澶存枃浠剁殑搴擄紝涔熸槸璇達(dá)紝鍦ㄤ嬌鐢ㄤ箣鍓嶄笉闇瑕侀鍏堢紪璇戙傚叾嬈★紝Xpressive鏀寔綾諱技浜嶴pirit鐨勯潤(rùn)鎬佽涔夊畾涔夈?br><br>鎴戜滑鍏堟潵鐪嬩竴涓緥瀛愶細(xì) <p> </p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><span style="COLOR: rgb(0,0,0)">#include </span><span style="COLOR: rgb(0,0,0)"><</span><span style="COLOR: rgb(0,0,0)">iostream</span><span style="COLOR: rgb(0,0,0)">></span><span style="COLOR: rgb(0,0,0)"><br>#include </span><span style="COLOR: rgb(0,0,0)"><</span><span style="COLOR: rgb(0,0,0)">boost</span><span style="COLOR: rgb(0,0,0)">/</span><span style="COLOR: rgb(0,0,0)">xpressive</span><span style="COLOR: rgb(0,0,0)">/</span><span style="COLOR: rgb(0,0,0)">xpressive.hpp</span><span style="COLOR: rgb(0,0,0)">></span><span style="COLOR: rgb(0,0,0)"><br><br></span><span style="COLOR: rgb(0,0,255)">using</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,255)">namespace</span><span style="COLOR: rgb(0,0,0)"> boost::xpressive;<br><br></span><span style="COLOR: rgb(0,0,255)">int</span><span style="COLOR: rgb(0,0,0)"> main()<br>{<br>    std::</span><span style="COLOR: rgb(0,0,255)">string</span><span style="COLOR: rgb(0,0,0)"> hello( </span><span style="COLOR: rgb(0,0,0)">"</span><span style="COLOR: rgb(0,0,0)">hello world!</span><span style="COLOR: rgb(0,0,0)">"</span><span style="COLOR: rgb(0,0,0)"> );<br><br>    sregex rex </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> sregex::compile( </span><span style="COLOR: rgb(0,0,0)">"</span><span style="COLOR: rgb(0,0,0)">(\\w+) (\\w+)!</span><span style="COLOR: rgb(0,0,0)">"</span><span style="COLOR: rgb(0,0,0)"> );<br>    smatch what;<br><br>    </span><span style="COLOR: rgb(0,0,255)">if</span><span style="COLOR: rgb(0,0,0)">( regex_match( hello, what, rex ) )<br>    {<br>        std::cout </span><span style="COLOR: rgb(0,0,0)"><<</span><span style="COLOR: rgb(0,0,0)"> what[</span><span style="COLOR: rgb(0,0,0)">0</span><span style="COLOR: rgb(0,0,0)">] </span><span style="COLOR: rgb(0,0,0)"><<</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">\n</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">; </span><span style="COLOR: rgb(0,128,0)">//</span><span style="COLOR: rgb(0,128,0)"> whole match</span><span style="COLOR: rgb(0,128,0)"><br></span><span style="COLOR: rgb(0,0,0)">        std::cout </span><span style="COLOR: rgb(0,0,0)"><<</span><span style="COLOR: rgb(0,0,0)"> what[</span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)">] </span><span style="COLOR: rgb(0,0,0)"><<</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">\n</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">; </span><span style="COLOR: rgb(0,128,0)">//</span><span style="COLOR: rgb(0,128,0)"> first capture</span><span style="COLOR: rgb(0,128,0)"><br></span><span style="COLOR: rgb(0,0,0)">        std::cout </span><span style="COLOR: rgb(0,0,0)"><<</span><span style="COLOR: rgb(0,0,0)"> what[</span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)">] </span><span style="COLOR: rgb(0,0,0)"><<</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">\n</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">; </span><span style="COLOR: rgb(0,128,0)">//</span><span style="COLOR: rgb(0,128,0)"> second capture</span><span style="COLOR: rgb(0,128,0)"><br></span><span style="COLOR: rgb(0,0,0)">    }<br><br>    </span><span style="COLOR: rgb(0,0,255)">return</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">0</span><span style="COLOR: rgb(0,0,0)">;<br>}</span></div> <p>榪欐槸浣跨敤Xpressive鍔ㄦ佽涔夊畾涔夌殑渚嬪瓙錛屽叾涓璼regex::compile鍑芥暟緙栬瘧涓涓〃紺烘鍒欐枃娉曠殑涓詫紝騫惰繑鍥炰竴涓鍒欏璞regex<br>浣跨敤regex_match鏉ヤ嬌鐢ㄨ繖涓鍒欏璞″尮閰嶄竴涓覆銆傜粨鏋滃偍瀛樺湪what鍐?br>鍏朵腑what[0]榪斿洖鏁翠釜涓詫紝what[1]~what[n]榪斿洖鏂囨硶涓敤浜庢爣璁扮殑閮ㄥ垎(鐢ㄥ皬鎷彿鎷搗鏉ョ殑閮ㄥ垎)<br>鏈鍚庡皢杈撳嚭<br>     hello world!<br>     hello<br>     world</p> <p>濡傛灉鎯沖湪涓涓覆涓煡鎵劇鍚堣鏂囨硶鐨勫瓙涓詫紝鍙互浣跨敤regex_search錛岀敤娉曞拰regex_match涓鏍鳳紝姝ゅ榪樺彲浠ョ敤regex_replace鏉ヨ繘琛屾浛鎹€?br></p> <p> </p> <p><br>闈?rùn)鎬佹枃娉曪細(xì)<br>Xpressive闄や簡(jiǎn)鍙互鐢╟ompile鏉ュ垎鏋愪竴涓枃娉曚覆涔嬪錛岃繕鍙互鐢ㄧ被浼間簬Spirit鐨勬柟寮忔潵闈?rùn)鎬佺殑鎸囧畾鏂囨硶錛?br></p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top><span style="COLOR: rgb(0,0,0)">sregex re </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">$</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)">_d </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">.</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> _d </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> _d;</span></div> <p>榪欏皢瀹氫箟涓涓〃紺洪噾棰濈殑涓詫紝鍏朵腑_d琛ㄧず涓涓暟瀛楋紝鐩稿綋浜庝覆 $\d+.\d\d<br>榪欐牱瀹氫箟鏂囨硶灝嗘瘮涔嬪墠鐨勫姩鎬佸畾涔夋洿鍔犻珮鏁堬紝騫朵笖榪樻湁涓涓檮鍔犵殑濂藉錛?br>鍒嗙駭瀹氫箟錛?/p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top><span style="COLOR: rgb(0,0,0)">sregex re </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">$</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)">_d </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">.</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> _d </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> _d;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>sregex s </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">(</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> re </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">)</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">;</span></div> <p>榪欐牱s琛ㄧず涓虹敤鎷彿鎷搗鏉ョ殑re<br>閫氳繃鍒嗙駭瀹氫箟錛屾枃娉曡兘琚〃紺虹殑鏇村姞娓呮銆?br>鏇村姞媯掔殑鏄紝鍒嗙駭瀹氫箟榪樺彲浠ュ悜鍚庡紩鐢紝鍥犳鑳藉鍒嗘瀽EBNF</p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top><span style="COLOR: rgb(0,0,0)">sregex group, factor, term, expression;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>group       </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">(</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> by_ref(expression) </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">)</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>factor      </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)">_d </span><span style="COLOR: rgb(0,0,0)">|</span><span style="COLOR: rgb(0,0,0)"> group;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>term        </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> factor </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)">((</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> factor) </span><span style="COLOR: rgb(0,0,0)">|</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">/</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> factor));<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>expression  </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> term </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)">((</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> term) </span><span style="COLOR: rgb(0,0,0)">|</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">-</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> term));</span></div> <p>expression瀹氫箟浜?jiǎn)涓涓洓鍒欒〃杈懼紡錛屾敞鎰忓叾涓璯roup鐨勫畾涔夈?br>榪欓噷蹇呴』浣跨敤by_ref鏄洜涓篨pressive榛樿鏄兼嫹璐濓紝濡傛灉榪欓噷浣跨敤榛樿鐨勬柟寮忥紝閭d箞浼?xì)閫犳垚涓涓棤闄愬驚鐜?br><br><br>Xpressive鍙互鍦ㄨ繖閲屼笅杞?br><a >http://boost-consulting.com/vault/index.php?PHPSESSID=f1d4af8b742cfa7adae7aab373cfc535&direction=0&order=&directory=Strings%20-%20Text%20Processing&PHPSESSID=f1d4af8b742cfa7adae7aab373cfc535</a><br>鍐呮湁璇︾粏鐨勬枃妗?/p> <img src ="http://www.shnenglu.com/shifan3/aggbug/10590.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/shifan3/" target="_blank">shifan3</a> 2006-07-27 16:27 <a href="http://www.shnenglu.com/shifan3/archive/2006/07/27/10590.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>[yc]鑷繁瀹炵幇Lambda錛堢浜岄儴鍒嗭級(jí)http://www.shnenglu.com/shifan3/archive/2006/07/15/10099.htmlshifan3shifan3Sat, 15 Jul 2006 07:32:00 GMThttp://www.shnenglu.com/shifan3/archive/2006/07/15/10099.htmlhttp://www.shnenglu.com/shifan3/comments/10099.htmlhttp://www.shnenglu.com/shifan3/archive/2006/07/15/10099.html#Feedback0http://www.shnenglu.com/shifan3/comments/commentRss/10099.htmlhttp://www.shnenglu.com/shifan3/services/trackbacks/10099.html闃呰鍏ㄦ枃

shifan3 2006-07-15 15:32 鍙戣〃璇勮
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[yc]鑷繁瀹炵幇Lambdahttp://www.shnenglu.com/shifan3/archive/2006/06/09/8334.htmlshifan3shifan3Fri, 09 Jun 2006 05:23:00 GMThttp://www.shnenglu.com/shifan3/archive/2006/06/09/8334.htmlhttp://www.shnenglu.com/shifan3/comments/8334.htmlhttp://www.shnenglu.com/shifan3/archive/2006/06/09/8334.html#Feedback6http://www.shnenglu.com/shifan3/comments/commentRss/8334.htmlhttp://www.shnenglu.com/shifan3/services/trackbacks/8334.html闃呰鍏ㄦ枃

shifan3 2006-06-09 13:23 鍙戣〃璇勮
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[yc]boost::spirit鍒濅綋楠?/title><link>http://www.shnenglu.com/shifan3/archive/2005/12/18/1857.html</link><dc:creator>shifan3</dc:creator><author>shifan3</author><pubDate>Sun, 18 Dec 2005 04:02:00 GMT</pubDate><guid>http://www.shnenglu.com/shifan3/archive/2005/12/18/1857.html</guid><wfw:comment>http://www.shnenglu.com/shifan3/comments/1857.html</wfw:comment><comments>http://www.shnenglu.com/shifan3/archive/2005/12/18/1857.html#Feedback</comments><slash:comments>5</slash:comments><wfw:commentRss>http://www.shnenglu.com/shifan3/comments/commentRss/1857.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/shifan3/services/trackbacks/1857.html</trackback:ping><description><![CDATA[<p><font face="Courier New">    鏈榪戜負(fù)浜?jiǎn)瑙f瀽SQL璇硶錛屾鐫璇曚竴璇曠殑蹇?jī)鎬佸幓緲諱簡(jiǎn)緲籦oost鐨剆pirit搴擄紝鍥犱負(fù)璇ュ簱鐨勬枃妗g殑綆浠嬮噷鍐欑潃LL parser framework  represents parsers directly as EBNF grammars in inlined C++銆傜湅鐫framework榪欎釜璇嶈嚜鐒惰寰楄繖涓簱寰堢墰B錛岃瘯鐢ㄤ簡(jiǎn)涓涓嬫灉鐒跺姝ゃ?br>    鎵璋揈BNF鍗蟲墿灞曞反鍏嬫柉鑼冨紡錛屾槸涓縐嶆弿榪癈ontext-Free Language鐨勬枃娉曘傚湪鐩墠甯歌鐨勯潪鑷劧璇█涓紝澶ч儴鍒嗛兘鍙互鐢‥BNF琛ㄧず銆備緥濡傦細(xì)<br><span id="z39zjdv" class=identifier>      group  </span><span id="db3r33t" class=special>::=</span><span id="jtr33xl" class=literal>'('</span><span id="df9dh1p" class=identifier><span id="ph9xnrh" class=identifier>exp </span></span></font><font face="Courier New"><span id="9hf39dv" class=literal>')'<br></span>      <span id="nntrv3n" class=identifier>factor </span><span id="xp9frl9" class=special>::=</span><span id="nfbp3jh" class=identifier>integer</span><span id="3b39njb" class=special>|</span></font> <font face="Courier New"><span id="vn93bzx" class=identifier>group<br></span>      <span id="zj9j99f" class=identifier>term   </span><span id="3r3fzxv" class=special>::=</span><span id="939z999" class=identifier>factor</span><span id="3h99991" class=special>((</span><span id="33rv91h" class=literal>'*'</span><span id="9jx9hpf" class=identifier>factor</span><span id="t1hbfxz" class=special>)</span><span id="1d9b3bj" class=special>|</span><span id="d3vhvbr" class=special>(</span><span id="tz9r3xf" class=literal>'/'</span><span id="93rvxd9" class=identifier>factor</span></font> <font face="Courier New"><span id="1dbxzp3" class=special>))*<br></span>      <span id="rrp3tj9" class=identifier>exp    </span><span id="1jxr3hp" class=special>::=</span><span id="13v9zx9" class=identifier>term</span><span id="xf1vbr9" class=special>((</span><span id="n9n1lbt" class=literal>'+'</span><span id="x3pdxd9" class=identifier>term</span><span id="3fb3ljd" class=special>)</span><span id="zz99p9x" class=special>|</span><span id="nf999zf" class=special>(</span><span id="3z9n9lr" class=literal>'-'</span><span id="z9jn3vt" class=identifier>term</span></font> <span id="d9nh9xn" class=special><font face="Courier New">))*<br>榪欐槸涓涓暣鏁拌〃杈懼紡鐨凟BNF銆傝孌墊弿榪扮敤spirit鍦–++涓殑瀹炵幇鍒欐槸錛?br>   </font> </span></p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><font face="Courier New">   <img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top><span style="COLOR: rgb(0,0,0)">rule</span><span style="COLOR: rgb(0,0,0)"><></span><span style="COLOR: rgb(0,0,0)"> group, factor, term, exp;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   group  </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">(</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> exp </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">)</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   factor </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> int_p </span><span style="COLOR: rgb(0,0,0)">|</span><span style="COLOR: rgb(0,0,0)"> group;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   term   </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> factor </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)">((</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> factor) </span><span style="COLOR: rgb(0,0,0)">|</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">/</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> factor));<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   exp    </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> term </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)">((</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> term) </span><span style="COLOR: rgb(0,0,0)">|</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">-</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> term));<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top></span></font> </div> <p><font face="Courier New">榪欓噷浣跨敤=浠f浛::=, 鐢?gt;>浠f浛絀烘牸榪炴帴銆傚茍涓旂敱浜嶤++璇硶鎵闄愶紝EBNF涓悗緗殑*鍦╯pirit涓敼涓哄墠緗?br>絳夊紡宸﹁竟鐨勫崟璇嶈縐頒負(fù)涓涓猺ule錛岀瓑寮忓彸杈逛負(fù)rule鐨勫畾涔夈傛垜浠彲浠ョ湅鍑轟竴涓猤roup鏄竴涓猠xp鍔犱笂涓瀵規(guī)嫭鍙鳳紝涓涓猣actor鏄竴涓暣鏁版垨鑰呬竴涓猤roup,涓涓猼erm鏄竴涓垨澶氫釜factor鐢?/榪炴帴錛屼竴涓猠xp鏄竴涓垨澶氫釜term鐢?-榪炴帴銆傚浜庢渶欏剁鐨別xp鍙互鎹璇嗗埆鍑轟互涓嬭〃杈懼紡<br></font><font face="Courier New"><span id="n3nx3vb" class=number>   </span> </font></p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><font face="Courier New">   <img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top><span style="COLOR: rgb(0,0,0)">12345</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,0)">-</span><span style="COLOR: rgb(0,0,0)">12345</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)">12345</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)">/</span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">3</span><span style="COLOR: rgb(0,0,0)">/</span><span style="COLOR: rgb(0,0,0)">4</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">3</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">4</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">3</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">4</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   (</span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)">) </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">3</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">4</span><span style="COLOR: rgb(0,0,0)">)<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   (</span><span style="COLOR: rgb(0,0,0)">-</span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)">) </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">3</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">-</span><span style="COLOR: rgb(0,0,0)">4</span><span style="COLOR: rgb(0,0,0)">)<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> ((</span><span style="COLOR: rgb(0,0,0)">6</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">200</span><span style="COLOR: rgb(0,0,0)">) </span><span style="COLOR: rgb(0,0,0)">-</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">20</span><span style="COLOR: rgb(0,0,0)">) </span><span style="COLOR: rgb(0,0,0)">/</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">6</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   (</span><span style="COLOR: rgb(0,0,0)">1</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">2</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">3</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> (</span><span style="COLOR: rgb(0,0,0)">4</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">5</span><span style="COLOR: rgb(0,0,0)">))))<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top></span></font> </div> <p><font face="Courier New">    寰楀埌涓涓猺ule涔嬪悗錛屾垜浠氨鍙互鐢?/font> <span id="btxjv9r" class=identifier><font face="Courier New">parse鍑芥暟瀵逛竴涓覆榪涜璇嗗埆浜?jiǎn)銆備緥濡?br>         </font> </span></p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><span style="COLOR: rgb(0,0,0)"><font face="Courier New">         parse(</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">"</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">(1 + (2 + (3 + (4 + 5))))</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">"</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">, exp);</font> </span></div> <p><font face="Courier New"><br>璇ュ嚱鏁拌繑鍥炰竴涓粨鏋刾arse_info錛屽彲浠ラ氳繃璁塊棶鍏朵腑鐨刦ull鎴愬憳鏉ュ垽鏂槸鍚︽垚鍔熻瘑鍒紝涔熷彲浠ヨ闂畇top鎴愬憳鏉ヨ幏鐭ュけ璐ョ殑浣嶇疆銆傝繖閲岃鐗瑰埆鎻愪竴鐐癸紝鍏充簬鍚勪釜絎﹀彿涔嬮棿鐨勭┖鏍鹼紝spirit鐨勬枃妗g殑姝f枃璇寸殑鏄粰parse鍐嶄紶涓涓弬鏁皊pace_p錛岄氱煡parse璺寵繃鎵鏈夌殑絀烘牸錛岀劧鑰屽湪FAQ涓張鎻愬埌錛屽鏋滀嬌鐢ㄤ互涓婃柟娉曞畾涔塺ule錛岀涓変釜鍙傛暟浼爏pace_p浼?xì)澶辫触銆傚師鍥犳槸浣跨敤rule榛樿瀹氫箟鐨勮鍒欒縐頒負(fù)character level parsing錛屽嵆瀛楃綰у埆瑙f瀽錛岃宲arse鐨勭3涓弬鏁頒粎閫傜敤浜巔hrase level parsing錛屽嵆璇硶綰у埆瑙f瀽銆傝浣跨敤絎?涓弬鏁板彲浠ユ湁鍑犵鏂規(guī)硶銆?br>      1銆傚湪parse鐨勭浜屼釜鍙傛暟鐩存帴浼犲叆涓涓狤BNF琛ㄨ揪寮忥紝涓嶅垱寤簉ule瀵硅薄銆?br>         <span id="v3dx9tt" class=identifier></span></font> </p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><span style="COLOR: rgb(0,0,0)"><font face="Courier New">            parse(</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">"</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">hello world</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">"</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">, </font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">*</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">anychar_p, space_p);  </font> </span></div> <p><font face="Courier New"><span id="3l9p39j" class=special><br>      2銆備互rule<phrase_scanner_t>鍒涘緩rule銆?br>         </span> </font></p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><span style="COLOR: rgb(0,0,0)"><font face="Courier New">            rule</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New"><</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">phrase_scanner_t</font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New">></font> </span><span style="COLOR: rgb(0,0,0)"><font face="Courier New"> exp; </font> </span></div> <p><font face="Courier New">娉ㄦ剰铏界劧鍙互鐢ㄨ繖涓や釜鍔炴硶灞忚斀絀烘牸錛屼絾鏄繖鏍峰彲鑳藉畬鍏ㄦ敼鍙楨BNF鏂囨硶鐨勮涔夛紝灝ゅ叾鏄湪璇█鏈韓闇瑕佽瘑鍒┖鏍肩殑鏃跺欍傚浜庤繖縐嶆儏鍐碉紝鍙互涓嶄嬌鐢ㄧ涓変釜鍙傛暟錛屽茍鍦ㄩ渶瑕佸嚭鐜扮┖鏍肩殑鍦版柟鍔犱笂space_p,鎴栬?space_p鍙?space_p錛屽叾涓?鍜?鍒嗗埆琛ㄧず鍚庨潰鐨勭鍙瘋繛緇嚭鐜頒竴嬈′互涓婂拰0嬈′互涓娿備緥濡備竴涓互絀烘牸鍒嗛殧鐨勬暣鏁板垪琛ㄥ彲浠ュ啓鎴恑nt_p >> *(+space_p >> int_p)<br>   濡備笂浣跨敤parse鍙互璇嗗埆涓涓覆錛屼絾騫朵笉鑳藉仛鏇村鐨勬搷浣滐紝渚嬪灝嗚娉曢噷鐨勫悇涓垚鍒嗘彁鍙栧嚭鏉ャ傚浜庤繖鏍風(fēng)殑闇姹傦紝鍙互閫氳繃actor瀹炵幇銆備笅闈㈡槸浣跨敤actor鐨勪竴涓畝鍗曚緥瀛?br>   <span id="hnbv39n" class=keyword></span></font> </p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><font face="Courier New"><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   <span style="COLOR: rgb(0,0,255)">bool</span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   parse_numbers(</span><span style="COLOR: rgb(0,0,255)">char</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,255)">const</span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)"> str, vector</span><span style="COLOR: rgb(0,0,0)"><</span><span style="COLOR: rgb(0,0,255)">double</span><span style="COLOR: rgb(0,0,0)">>&</span><span style="COLOR: rgb(0,0,0)"> v)<br><img id=Codehighlighter1_61_247_Open_Image onclick="this.style.display='none'; Codehighlighter1_61_247_Open_Text.style.display='none'; Codehighlighter1_61_247_Closed_Image.style.display='inline'; Codehighlighter1_61_247_Closed_Text.style.display='inline';" src="http://www.shnenglu.com/Images/OutliningIndicators/ExpandedBlockStart.gif" align=top><img id=Codehighlighter1_61_247_Closed_Image style="DISPLAY: none" onclick="this.style.display='none'; Codehighlighter1_61_247_Closed_Text.style.display='none'; Codehighlighter1_61_247_Open_Image.style.display='inline'; Codehighlighter1_61_247_Open_Text.style.display='inline';" src="http://www.shnenglu.com/Images/OutliningIndicators/ContractedBlock.gif" align=top>   </span><span id=Codehighlighter1_61_247_Closed_Text style="BORDER-RIGHT: rgb(128,128,128) 1px solid; BORDER-TOP: rgb(128,128,128) 1px solid; DISPLAY: none; BORDER-LEFT: rgb(128,128,128) 1px solid; BORDER-BOTTOM: rgb(128,128,128) 1px solid; BACKGROUND-COLOR: rgb(255,255,255)"><img src="http://www.shnenglu.com/Images/dot.gif"></span><span id=Codehighlighter1_61_247_Open_Text><span style="COLOR: rgb(0,0,0)">{<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>      </span><span style="COLOR: rgb(0,0,255)">return</span><span style="COLOR: rgb(0,0,0)"> parse(str,<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>   </span><span style="COLOR: rgb(0,128,0)">//</span><span style="COLOR: rgb(0,128,0)">  Begin grammar</span><span style="COLOR: rgb(0,128,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top></span><span style="COLOR: rgb(0,0,0)">      (<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>         real_p[push_back_a(v)] </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)">(</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)">,</span><span style="COLOR: rgb(0,0,0)">'</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> real_p[push_back_a(v)])<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>      )<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>      ,<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>      </span><span style="COLOR: rgb(0,128,0)">//</span><span style="COLOR: rgb(0,128,0)">  End grammar</span><span style="COLOR: rgb(0,128,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top></span><span style="COLOR: rgb(0,0,0)">      space_p).full;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/ExpandedBlockEnd.gif" align=top>   }</span></span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top></span></font> </div> <p><font face="Courier New">娉ㄦ剰鍒?span class=identifier>real_p鍚庨潰鐨刐]錛屼腑鎷彿閲岄潰鏄竴涓豢鍑芥暟錛堝嚱鏁版寚閽堟垨鑰呭嚱鏁板璞★級(jí)錛岃浠垮嚱鏁板叿鏈夊涓嬭皟鐢ㄥ瀷鍒?br>   </span></font> </p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><font face="Courier New">   <img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top><span style="COLOR: rgb(0,0,255)">void</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,255)">operator</span><span style="COLOR: rgb(0,0,0)">()(IterT first, IterT last) </span><span style="COLOR: rgb(0,0,255)">const</span><span style="COLOR: rgb(0,0,0)">;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,255)">void</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,255)">operator</span><span style="COLOR: rgb(0,0,0)">()(NumT val) </span><span style="COLOR: rgb(0,0,255)">const</span><span style="COLOR: rgb(0,0,0)">;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top>   </span><span style="COLOR: rgb(0,0,255)">void</span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,255)">operator</span><span style="COLOR: rgb(0,0,0)">()(CharT ch) </span><span style="COLOR: rgb(0,0,255)">const</span><span style="COLOR: rgb(0,0,0)">;</span></font> </div> <p><span id="hfd9r9z" class=special><span id="xx9p9zf" class=special><span id="jh93phj" class=special><font face="Courier New"><br>涓鏃pase鍙戠幇浜?jiǎn)鍖归?span class=identifier>real_p鐨勫瓙涓詫紝灝變細(xì)璋冪敤璇unctor銆備笉鍚岀殑rule鍙兘浼?xì)瀵瑰簲涓嶅悓鐨勮皟鐢ㄥ瀷鍒?/span><br>絎竴涓瀷鍒拡瀵逛竴鑸鍒欙紝first鍜宭ast涓轟袱涓寚鍚戝瓧絎︾殑榪唬鍣紙涓鑸負(fù)char*錛?鍖歸厤鐨勫瓙涓蹭負(fù)[first, last)<br>絎簩涓瀷鍒拡瀵規(guī)暟瀛楀瀷瑙勫垯錛屽real_p鍜宨nt_p, 鍙傛暟val鏄竴涓暟瀛楃被鍨嬨?br>絎笁涓у埆閽堝鍗曞瓧絎﹀瀷瑙勫垯錛屽space_p, 鍙傛暟ch鏄竴涓瓧絎︾被鍨嬨?br><span id="3dtv9hn" class=identifier>real_p</span><span id="bb9t9d3" class=special>[</span><span id="hfdx999" class=identifier>push_back_a</span><span id="p999ffv" class=special>(</span><span id="lbx3vjj" class=identifier>v</span><span id="9d9d9dl" class=special>)]涓殑push_back_a鏄竴涓猻pirit宸茬粡瀹氫箟濂界殑functor錛屽畠浼?xì)灏嗗寶w厤濂界殑鍐呭渚濈収鍖歸厤鍒扮殑鏃墮棿欏哄簭璋冪敤v鐨刾ush_back鍑芥暟鍔犲叆鍒皏涓?br><br>   鍒版spirit鐨勫父鐢ㄥ姛鑳藉氨閮戒粙緇嶅畬浜?jiǎn)銆傝璇︾粏娣卞叆浜?jiǎn)瑙e彲浠ュ弬鑰僺pirit鐨勬枃妗c?br><br>鏈鍚庡湪棰樹竴涓敞鎰忚鐐廣俿pirit鐨勫悇縐岴BNF榪炴帴閮芥槸鎸囬拡榪炴帴錛屽洜姝ゆ墠鑳藉湪expression琚祴鍊煎墠灝卞湪group鐨勫畾涔夐噷闈嬌鐢ㄣ傛墍浠ュ湪浣跨敤EBNF鐨勬椂鍊欎竴瀹氳灝忓績(jī)涓嶈灝嗗眬閮ㄥ彉閲忕殑rule鎻愪緵緇欏叏灞鎴栬呯被鎴愬憳鍙橀噺浣跨敤錛屼緥濡傦細(xì)<br>   </span></font> </span></span></span></p> <div style="BORDER-RIGHT: rgb(204,204,204) 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: rgb(204,204,204) 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: rgb(204,204,204) 1px solid; WIDTH: 98%; PADDING-TOP: 4px; BORDER-BOTTOM: rgb(204,204,204) 1px solid; BACKGROUND-COLOR: rgb(238,238,238)"><font face="Courier New">   <img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top><span style="COLOR: rgb(0,0,255)">class</span><span style="COLOR: rgb(0,0,0)"> A<br><img id=Codehighlighter1_11_166_Open_Image onclick="this.style.display='none'; Codehighlighter1_11_166_Open_Text.style.display='none'; Codehighlighter1_11_166_Closed_Image.style.display='inline'; Codehighlighter1_11_166_Closed_Text.style.display='inline';" src="http://www.shnenglu.com/Images/OutliningIndicators/ExpandedBlockStart.gif" align=top><img id=Codehighlighter1_11_166_Closed_Image style="DISPLAY: none" onclick="this.style.display='none'; Codehighlighter1_11_166_Closed_Text.style.display='none'; Codehighlighter1_11_166_Open_Image.style.display='inline'; Codehighlighter1_11_166_Open_Text.style.display='inline';" src="http://www.shnenglu.com/Images/OutliningIndicators/ContractedBlock.gif" align=top>   </span><span id=Codehighlighter1_11_166_Closed_Text style="BORDER-RIGHT: rgb(128,128,128) 1px solid; BORDER-TOP: rgb(128,128,128) 1px solid; DISPLAY: none; BORDER-LEFT: rgb(128,128,128) 1px solid; BORDER-BOTTOM: rgb(128,128,128) 1px solid; BACKGROUND-COLOR: rgb(255,255,255)"><img src="http://www.shnenglu.com/Images/dot.gif"></span><span id=Codehighlighter1_11_166_Open_Text><span style="COLOR: rgb(0,0,0)">{<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>      rule</span><span style="COLOR: rgb(0,0,0)"><></span><span style="COLOR: rgb(0,0,0)"> s;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>      A()<br><img id=Codehighlighter1_45_161_Open_Image onclick="this.style.display='none'; Codehighlighter1_45_161_Open_Text.style.display='none'; Codehighlighter1_45_161_Closed_Image.style.display='inline'; Codehighlighter1_45_161_Closed_Text.style.display='inline';" src="http://www.shnenglu.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif" align=top><img id=Codehighlighter1_45_161_Closed_Image style="DISPLAY: none" onclick="this.style.display='none'; Codehighlighter1_45_161_Closed_Text.style.display='none'; Codehighlighter1_45_161_Open_Image.style.display='inline'; Codehighlighter1_45_161_Open_Text.style.display='inline';" src="http://www.shnenglu.com/Images/OutliningIndicators/ContractedSubBlock.gif" align=top>      </span><span id=Codehighlighter1_45_161_Closed_Text style="BORDER-RIGHT: rgb(128,128,128) 1px solid; BORDER-TOP: rgb(128,128,128) 1px solid; DISPLAY: none; BORDER-LEFT: rgb(128,128,128) 1px solid; BORDER-BOTTOM: rgb(128,128,128) 1px solid; BACKGROUND-COLOR: rgb(255,255,255)"><img src="http://www.shnenglu.com/Images/dot.gif"></span><span id=Codehighlighter1_45_161_Open_Text><span style="COLOR: rgb(0,0,0)">{<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>         rule</span><span style="COLOR: rgb(0,0,0)"><></span><span style="COLOR: rgb(0,0,0)"> r </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> int_p </span><span style="COLOR: rgb(0,0,0)">|</span><span style="COLOR: rgb(0,0,0)"> hex_p;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/InBlock.gif" align=top>         s </span><span style="COLOR: rgb(0,0,0)">=</span><span style="COLOR: rgb(0,0,0)"> r </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> </span><span style="COLOR: rgb(0,0,0)">*</span><span style="COLOR: rgb(0,0,0)">(</span><span style="COLOR: rgb(0,0,0)">+</span><span style="COLOR: rgb(0,0,0)">space_p </span><span style="COLOR: rgb(0,0,0)">>></span><span style="COLOR: rgb(0,0,0)"> r); </span><span style="COLOR: rgb(0,128,0)">//</span><span style="COLOR: rgb(0,128,0)">error, r destructed after return </span><span style="COLOR: rgb(0,128,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif" align=top></span><span style="COLOR: rgb(0,0,0)">      }</span></span><span style="COLOR: rgb(0,0,0)"><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/ExpandedBlockEnd.gif" align=top>   }</span></span><span style="COLOR: rgb(0,0,0)">;<br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top><br><img src="http://www.shnenglu.com/Images/OutliningIndicators/None.gif" align=top></span></font> </div> <p><span id="xdt9h99" class=special><span id="93pzx3j" class=identifier><font face="Courier New"><span id="jr93z99" class=special><span id="f9dfb3d" class=identifier><span id="jpn9b99" class=special><span id="ndtvtr3" class=special><span id="fdpz3r3" class=special><span 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