Resources for writing a recursive descent parser by hand
Like the title says, I'm looking to write a recursive descent parser by hand and I'm looking for good resources on how to structure it, algorithms, etc. ...
parsing
Easy way parsing Shopzilla Publisher feed or API?
Do any have easy tools for parsing Shopzilla Publisher feed or API? ...
What is the conflict in this yacc parser?
I used the -v option in yacc to produce a y.output file. At the top of the file it says State 98 conflicts: 1 shift/reduce Further down in the file is the following: state 98 30 selection_stmt: IF '(' expression ')' statement . 31 | IF '(' expression ')' statement . ELSE statement ELSE shift, and go to stat...
how fetch each field as a value frm file
how to parse this kind of response such that i can fetch each and every field as seperate value by avoiding all the delimiters as ::,-,;,\n,\r etc........pls give me an idea of doing such that i can proceed RTRV-HDR:::RH01; [2K SIMULATOR 09-11-18 13:49:03 M RH01 COMPLD ; agent>RTRV-EQPT::ALL:RE01; [2K SIMULATOR 09-11-18 13:49...
How to parse pdf file without using any lib or software in C#
i want to parse pdf file without using any software or libraries such as itextsharp...i am developing a project in c#.. ...
How can I parse the following text file?
Hi, I'm pretty new to c#. Can somebody please give me the right direction on how can I parse the following text file? The program I am trying to implement will do the following: It will ask the user to enter a directory. It will search the directory for text files. It will loop through the text files, parse them, and save them in a o...
internal implementation details of XML parsing using java xml parser.
can anyone tell how an XML (Java) parser will parse the XML document( i mean to say the internal implementation details of XML parsing)? ...
Expecting End of File Exception in parsing xml data for Blackberry application
Hi All, I am getting parser exception as "Expecting End of File" while parsing xml data for Blackberry application? How do I fix it? ...
Why can't DateTime.Parse parse UTC date
Why can't it parse this: DateTime.Parse("Tue, 1 Jan 2008 00:00:00 UTC") ...
Check a phrase is not in an <a> (or other) element
A friend is writing an advertisement script that puts links around select phrases in HTML code. Naturally if the phrase is already inside an <a> element (or another element that doesn't allow it - like if the phrase is found in the attribute of an element), he doesn't want the script to write out a link as it would break validation. H...
Approaching Text Parsing in Scala
I'm making an application that will parse commands in Scala. An example of a command would be: todo get milk for friday So the plan is to have a pretty smart parser break the line apart and recognize the command part and the fact that there is a reference to time in the string. In general I need to make a tokenizer in Scala. So I'm w...
Iterative regex matching
We've become fairly adept at generating various regular expressions to match input strings, but we've been asked to try to validate these strings iteratively. Is there an easy way to iteratively match the input string against a regular expression? Take, for instance, the following regular expression: [EW]\d{1,3}\.\d When the user ent...
Natural Language Parsing for ToDo application
I'm wondering if someone could lead me to any examples of natural language parsing for to do lists. Nothing as intense as real Natural Language Parsing, but something that could process the line: Go to George's house at 3pm on Tuesday with Kramer as well as the line: 3 on tuesday go to georges and get the same output. I've ...
Parse CSV string into Array of Integers
I have a text box field inputs 123,145,125 I to separate this field into an array of integers. And validate this field true or false if everything is parsed right. CODE: private bool chkID(out int[] val) { char[] delimiters = new char[] { ',' }; string[] strSplit = iconeID.Text.Split(delimiters); int[] intArr = null;...
Raise ParseError in Haskell/Parsec
What is the prefered way to raise errors (ParseError) in Parsec? I got some code inside a parser that performs a check and if the check fails a ParseError should be returned (i.e. Left ParseError when running parse). ...
How to resolve this Shift/Reduce conflict in YACC
I have a grammar like this: "Match one or more rule1 where rule1 is one or more rule2, where rule2 is one or more rule3, etc. etc. each seperated by newlines". Look at the following example. start: rule1_list ; rule1_list: rule1 | rule1_list NEWLINE rule1 ; rule1: rule2 | rule2 NEWLINE rule3...
I found this "[\\?&]v=([^&#]*)" on the internet can someone explain it to me.
I found a method on the internet that can retrieve the Id of a youtube video from the url. this is it. var vid; var results; results = url.match("[\\? vid = ( results === null ) ? url : results[1]; The Id will be contained in "vid". What I don't understand and I find interesting and want to know is this. results = url.match("[\\?...
nokogiri multiple css classes
How is it possible to select an html element that have two classes. For example, hot to select the element p bellow in an html document (given that it has two css classes) class='class1 class2' : I tried to use the following : doc.xpath("//p[@class~='class1 class2']") doc.xpath("//p[@class~='class1']|[@class~='class2']") doc.xpath("...
ByteArray In C# Is Unable To Show All Contents In TextBox
I'm parsing a pdf file...I converted data into byte array but it doesnt show full file.. i dnt want to use any lib or softy.. FileStream fs = new FileStream(fname, FileMode.Open); BinaryReader br = new BinaryReader(fs); int pos = 0; int length = (int)br.BaseStream.Length; byte [] file = br.ReadB...
[C] Syntactic errors
I'm writing code for the exercise 1-24, K&R2, which asks to write a basic syntactic debugger. I made a parser with states normal, dquote, squote etc... So I'm wondering if a code snippet like /" text " is allowed in the code? Should I report this as an error? (The problem is my parser goes into comment_entry state after / and ignore...