parsing

问题 I am currently learning the FParsec library, but I have come across an issue. When I want to parse an optional string and continue parsing as normal afterwards, FParsec will return a fatal error on the optional parser, rather than returning None as I expect. The below working code sample illustrates my point: open System open FParsec type AccountEntity = | Default | Entity of string let pEntity = let isEntityFirstChar c = isLetter c let isEntityChar c = isLetter c || isDigit c (many1Satisfy2L

问题 After reading all related threads i can not find anything that shows regex that is capable of extracting a full json object from within html content so im hoping someone can help me get the right regex to resolve the issue. For example the json im looking to extract looks like this: "taxonomy": {"page":"/products/1/","price":"350.00","country_code":"gb","brand":"apple"}, Im trying to extract the entire "taxonomy" object that is inside a java script function within the html. I have tried preg

问题 After reading all related threads i can not find anything that shows regex that is capable of extracting a full json object from within html content so im hoping someone can help me get the right regex to resolve the issue. For example the json im looking to extract looks like this: "taxonomy": {"page":"/products/1/","price":"350.00","country_code":"gb","brand":"apple"}, Im trying to extract the entire "taxonomy" object that is inside a java script function within the html. I have tried preg

问题 After reading all related threads i can not find anything that shows regex that is capable of extracting a full json object from within html content so im hoping someone can help me get the right regex to resolve the issue. For example the json im looking to extract looks like this: "taxonomy": {"page":"/products/1/","price":"350.00","country_code":"gb","brand":"apple"}, Im trying to extract the entire "taxonomy" object that is inside a java script function within the html. I have tried preg

问题 I'm trying to parse in real time the output of a program block-buffered, which means that output is not available until the process ends. What I need is just to parse line by line, filter and manage data from the output, as it could run for hours. I've tried to capture the output with subprocess.Popen(), but yes, as you may guess, Popen can't manage this kind of behavior, it keeps buffering until end of process. from subprocess import Popen, PIPE p = Popen("my noisy stuff ", shell=True,

问题 I have a rest server returning the next json string: response:='{"result":["[{\"email\":\"XXX@gmail.com\",\"regid\":\"12312312312312312313213w\"},{\"email\":\"YYYY@gmail.com\",\"regid\":\"AAAAAAA\"}]"]}'; I´d like to parse the response to get a list of all email and regid items. I have tried the next code but I am getting an AV at (TJSONPair(LItem).JsonString.Value='email') Any help will be appreciated. Thanks in advance, Luiz var LResult:TJSONArray; LJsonresponse:TJSONObject; i:integer;

问题 Given a String containing a comma delimited list representing a proper noun & category/description pair, what are the pros & cons of using String.split() versus Pattern & Matcher approach to find a particular proper noun and extract the associated category/description pair? The haystack String format will not change. It will always contain comma delimited data in the form of PROPER_NOUN|CATEGORY/DESCRIPTION Common variables for both approaches: String haystack="EARTH|PLANET/COMFORTABLE,MARS

问题 I am trying to parse an XML file using Java. The XML file size is 256 kb only. I am using a DOM parser to parse the XML file. How can I parse the large XML file content? Here's the method that parses the file content: public Document parse_a_string(StringBuffer decodedFile) { Document doc1 = null; try { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder db = factory.newDocumentBuilder(); InputSource inStream = new InputSource(); // problem here inStream

问题 I want to know if there is any way to convert a string like "5ABBF13A000A01" to the next struct using struct and union method: struct xSensorData2{ unsigned char flags; unsigned int refresh_rate; unsigned int timestamp; }; Data should be: flags = 0x01 (last byte); refresh_rate = 0x000A (two bytes); timestamp = 5ABBF13A (four bytes); I'm thinking in next struct of data: struct xData{ union{ struct{ unsigned char flags:8; unsigned int refresh_rate:16; unsigned int timestamp:32; }; char pcBytes

问题 I want to know if there is any way to convert a string like "5ABBF13A000A01" to the next struct using struct and union method: struct xSensorData2{ unsigned char flags; unsigned int refresh_rate; unsigned int timestamp; }; Data should be: flags = 0x01 (last byte); refresh_rate = 0x000A (two bytes); timestamp = 5ABBF13A (four bytes); I'm thinking in next struct of data: struct xData{ union{ struct{ unsigned char flags:8; unsigned int refresh_rate:16; unsigned int timestamp:32; }; char pcBytes