{"id":3352,"date":"2014-03-23T02:30:49","date_gmt":"2014-03-23T02:30:49","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/03\/23\/problem-about-string-parsing-collection-of-common-programming-errors\/"},"modified":"2014-03-23T02:30:49","modified_gmt":"2014-03-23T02:30:49","slug":"problem-about-string-parsing-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/03\/23\/problem-about-string-parsing-collection-of-common-programming-errors\/","title":{"rendered":"problem about string-parsing-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/0061c156d80ae1c61bdc212b80eaabd3?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nMengQi Han<br \/>\njavascript regex string-parsing<br \/>\ni am new to regex. I am trying to parse all contents inside curly brackets in a string. I looked up this post as a reference and did exactly as one of the answers suggest, however the result is unexpected.Here is what i didvar abc = &#8220;test\/abcd{string1}test{string2}test&#8221; \/\/any string var regex = \/{(.+?)}\/ regex.exec(abc) \/\/ i got [&#8220;{string1}&#8221;, &#8220;string1&#8221;]\/\/where i am expecting [&#8220;string1&#8221;, &#8220;string2&#8221;]i think i am missing something, what am i doing wrong?updatei was able to get it with \/g for a globa<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/71770d043c0f7e3c7bc5f74190015c26?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nthe Tin Man<br \/>\nruby string string-parsing<br \/>\nI have a string, say &#8216;123&#8217;, and I want to convert it to 123.I know you can simply do some_string.to_i, but that converts &#8216;lolipops&#8217; to 0, which is not the effect I have in mind. I want it to blow up in my face when I try to convert something invalid, with a nice and painful Exception. Otherwise, I can&#8217;t distinguish between a valid 0 and something that just isn&#8217;t a number at all.EDIT: I was looking for the standard way of doing it, without regex trickery.<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/6326af218d1a113fd9a8fd9668b2d7c8?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nBart Kiers<br \/>\nc# string parsing function string-parsing<br \/>\nI need to know if there is any library out there that will allow me to, given a certain string representing a mathematical function, say, x^2+x+1, (don&#8217;t care about how the string format, any will work for me) generates a C# func that will represent said function.<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/9825eee1aeea415663794aecf29232bc?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nDanny Varod<br \/>\nc# parameters string-parsing<br \/>\nI Have a string array with 5 values, i want the program to loop even though i don&#8217;t enter a value for the arrays. If I split the arrays without inserting anything (pressing &#8230;.. (5 times &#8220;.&#8221; to split the array) then it doesn&#8217;t crash it will just loop. But if i just hit enter, then the program crashes.Is there a way to fix the loop so that even though there is no kind of input, that it won&#8217;t crash? (It also crashes if you don&#8217;t complete all 5 values.)Net = Console.ReadLine();string[] oktet = new<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/3a863d626cfeba2251bdf48ee8b38b7a?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nScott Biggs<br \/>\nandroid string nullpointerexception long-integer string-parsing<br \/>\nI&#8217;ve spent the past two hours debugging what seems extremely unlikely. I&#8217;ve stripped the method of a secondary Android Activity to exactly this:public void onClick(View v) {String str = &#8220;25&#8221;;long my_long = Long.getLong(str); } \/\/ onClick (v)And yeah, I get a crash with the good ol&#8217; NullPointerException:09-11 02:02:50.444: ERROR\/AndroidRuntime(1588): Uncaught handler: thread main exiting due to uncaught exception 09-11 02:02:50.464: ERROR\/AndroidRuntime(1588): java.lang.NullPointerExceptionIt lo<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/0d56a4d6c5d950fe25f6d833517b22d9?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nJake King<br \/>\nc string-parsing sscanf<br \/>\nI&#8217;m parsing a string (a char*) and I&#8217;m using sscanf to parse numbers from the string into doubles, like so:\/\/ char* expression; double value = 0; sscanf(expression, &#8220;%lf&#8221;, &amp;value);This works great, but I would then like to continue parsing the string through conventional means. I need to know how many characters have been parsed by sscanf so that I may resume my manual parsing from the new offset.Obviously, the easiest way would be to somehow calculate the number of characters that sscanf pa<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/150783bd34383e5e4936d8004527c555?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nrelower<br \/>\njavascript jquery regex string-parsing<br \/>\nI want to parse Dailymotion video url to get video id in javascript, like below:http:\/\/www.dailymotion.com\/video\/x44lvdvideo id: &#8220;x44lvd&#8221;i think i need regex string to get a video id for all dailymotion video url combinations.i found url parser regex for YouTube links, its working well like below:var regExp = \/^.*((youtu.be\\\/)|(v\\\/)|(\\\/u\\\/\\w\\\/)|(embed\\\/)|(watch\\?))\\??v?=?([^#\\&amp;\\?]*).*\/;var match = url.match(regExp);var videoID = &#8220;&#8221;;if (match &amp;&amp; match[7].length == 11){videoID = match[<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/e2721ed146ed298a74ff5903278d4836?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nOcelot20<br \/>\nc# .net type-conversion string-parsing<br \/>\nObviously this isn&#8217;t something you would want to do unless you&#8217;re in a helpless situation, but does anyone have a good example of something like this (bonus points for thinking of a clearer method name):public static object ConvertToBestGuessPrimitive(string toConvert) {if(looksLikeAnInt){return as an int;}else if(looksLikeABoolean){return as a boolean;}else{return as a string;} }The only idea I had was to chain together a bunch of TryParse methods together in a sensible order and fall back to s<\/li>\n<\/ul>\n<p>Web site is in building<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MengQi Han javascript regex string-parsing i am new to regex. I am trying to parse all contents inside curly brackets in a string. I looked up this post as a reference and did exactly as one of the answers suggest, however the result is unexpected.Here is what i didvar abc = &#8220;test\/abcd{string1}test{string2}test&#8221; \/\/any string var [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3352","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/3352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=3352"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/3352\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=3352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=3352"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=3352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}