extract

问题 I get a JSON string like this: [{"id":123,"name":"XX","default":false,"type":"other"},{"id":789,"name":"ZZ","default":false,"type":"first"}] I would like to get id , where name is ZZ , so extracted value should be 789 . I tried with this JSON expression: $.id[?(@.name=='ZZ')] I tried with regular expression too: {"id":(.+?),"name":"ZZ","default":false , My regular expression solution isn't working, because there are similar name values, like ZZ and ZZ (XYZ) . 回答1: You were close, with JSON

问题 What is solution of extract to array I have array: $arr = array( 'key1' => array( 'name' => 'Value 1' ), 'key2' => array( 'name' => 'Value 2' ) ); I would like get results like this: Array ( [key1] => Value 1 [key2] => Value 2 ) In Cake 2.2 and lower works by Set::extract('{\w+}.name', $arr) but when I would like use Hash by Hash::extract($arr, '{\w+).name') the results not corectly (also Hash::extract($arr, '{s}.name') return incorect. How do this using new Hash class? 回答1: just a follow up

问题 Hello all(and you Bruno too :) ). I'm using iTextSharp 4.1.6.0 that ported for Xamarin .Android. For some reason i need to extract images from pdf. I founded too much examples,but seems they are not acceptable for my case ,because some classes(like : ImageCodeInfo , ImageRenderInfo , System.Drawing.Imaging.EncoderParameters , PdfImageObject and etc,doesn't exist). But one example looks fine,here is it: void ExtractJpeg(string file) { var dir1 = Path.GetDirectoryName(file); var fn = Path

问题 I'm trying to extract information between fixed tags with BeautifulSoup by using the model suggested here enter link description here I have a lot of .html files in my folder and I want to save results obtained with a BeautifulSoup script into another folder in the form of individual .txt files. These .txt files should have the same name as original files but would contain only extracted content. The script I wrote (see below) processes files successfully but does not write extracted bits out

问题 Data sample contain words (orth) and kategories (prop key="sense:ukb:unitsstr"). I'd like to extract pairs of data such as orth and prop key="sense:ukb:unitsstr as a row to data frame. However, some words may not have any prop data, just like two last records. Then I'd like to see them as NA. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE chunkList SYSTEM "ccl.dtd"> <chunkList> <chunk id="ch1" type="p"> <sentence id="s1"> <tok> <orth>ktoś</orth> <lex disamb="1"><base>ktoś</base><ctag>subst

问题 I need to be able to extract data from within an existing text file. The structure of the text file looks something like this... this line contains a type of header and always starts at column 1 this line contains other data and is always tabbed in this line contains other data and is always tabbed in this line contains other data and is always tabbed in this line contains other data and is always tabbed in this line contains other data and is always tabbed in this line contains other data

问题 I am trying to extract a selected number of words surrounding a given word. I will give example to make it clear: string = "Education shall be directed to the full development of the human personality and to the strengthening of respect for human rights and fundamental freedoms." 1) The selected word is development and I need to get the 6 words surrounding it, and get : [to, the, full, of, the, human] 2) But if the selected word is in the beginning or in second position I still need to get 6

问题 I'm trying to extract thumnail images of each frame in an animated gif. The following code is how I'm tyring to do it, but the thumbnail property of the BitmapFrame instance is always null. Am I doing something wrong? GifBitmapDecoder bd1 = new GifBitmapDecoder( new Uri(thisImage.Path), BitmapCreateOptions.None, BitmapCacheOption.Default); if (bd1.CheckAccess()) { if (bd1.Frames.Count > 1) { foreach (var frame in bd1.Frames) { BitmapSource frameThmb = frame.Thumbnail; if (frameThmb != null)

问题 I hope somebody can help me out with this little problem..? I'm using Google Alerts to pull in breaking news stories to list on a website, unfortunately when I try to find the original url (prior to Google Alerts), all I get is a Google url as shown below; http://www.google.com/url?sa=X&q= http://www.source.com/2013/04/02/title.html &ct=ga&cad=CAcQARgAIAAoATAAOABArOXtigVIAlAAWABiBWVuLVVT&cd=ZQHHhnCXS8w&usg=AFQjCNGGGZgSyC3KvMJUW0ICYsCtRZ2uJA I've broken this url into the relevant sections to

问题 I have used file_get_contents() to basically get the source code of a site into a single string variable. The source contains many rows that looks like this: <td align="center"><a href="somewebsite.com/something">12345</a></td> (and a lot of rows that don't look like that). I want to extract all the idnumbers (12345 above) and put them in an array. How can I do that? I assume I want to use some kind of regular expressions and then use the preg_match_all() function, but I'm not sure how... 回答1