c++ - Findind more than one word in a file and then extracting the values present after those words? -


Note: I asked a similar question, but it was placed on "hold" Because I do not provide my code (I think). Now I have written my code, but I have to face some other problem.

From my .bench file, I have to read the values ​​written in the brackets () which I managed to do but the problem is that I INPUT , OUTPUT , NAND . After the values ​​in the brakets have read.

INPUT (1) INPUT (2) INPUT (3) INPUT (6) INPUT (7) Output (22) Output ( .bench file

So far, I used the code INKUT , OUTPUT , and NAND but as it looked I can repeat the same lines of code again and again again. So, how can I normalize the same code to find the value after OUTPUT , NAND etc. 

  int circuit :: readBenchFile (string filename) // Read the benchfile and generate inputs, outputs and gates accordingly {// .bench file ifstream input_file Reading; Char * S = new char [filename.length () + 1]; Std :: strcpy (s, filename.c_str ()); Input_file.open (s); If (input_file.fail ()) {cout & lt; & Lt; "Failed to open bench file. \ N"; Return 1; } /////// string line; String guard_st ("#"); String input_st ("INPUT"), output_st ("OUTPUT"), nand_st ("nand"); While (getline (input_file, line)) {std :: size_t guard_found = line.find (guard_str); If (guard_found == std :: string :: npos) {/// input std :: size_t found = line.find (input_str); String out = line.substr (found + 1, 1 = 1, (line.fund_first_off (')', found) - found - 1)); Std :: cout & lt; & Lt; Outside & lt; & Lt; Std :: endl; } /// output std :: size_t found1 = line.find (output_str); String out = line.substr (found1 + 1, 1 has been found, 1) (line.find_first_of (')', found 1) - found 1 - 1)); Std :: cout & lt; & Lt; Outside & lt; & Lt; Std :: endl; } /// NAND std :: size_t found_2 = line.find (nand_str); If (found_2! = Std :: string :: npos) {found_2 = line.find_first_of ('(', found_2 + 1); // get input string first_input = line.substr (found_2 + 1, (line.find_first_of () ',', Found_2) - found_2 - 1)); // second input found_2 = line.find_first_of (',', found_2 + 2); string seconds_input = line. substr (found_2 + 1, (line.find_first_of (') ', Found_2) - found_2 - 1)); Cout & lt; & Lt; "\ nThe input to the nand gate is:" & lt; & Lt; (First_input + string ("& amp;") + seconds_input); }}}}}    
 
 
 I think the best way to do this is to use regular expressions To use The best option is the Boost Reggae library, to do this.  
 If you are not familiar with regular expressions, then this is a very good page that will start you very fast. The first paragraph on the main page will give you this idea.  
 In short: Regular expressions make it possible to get patterns quickly in the text. You can quickly build a function based on a regular expression and the one which will be true if you find any word you find.

Comments

Post a Comment

Popular posts from this blog

c# - passing input text from view to contoller with FacebookContext using Facebook app -

I'm trying to pass an input text from the viewer to the controller in the Facebook Birthday app: Link to app: In the Home Controller [FacebookAuthorize ("email", "user_photos")] Public async Tasks & lt; ActionResult & gt; Index (FacebookContext reference) {if (ModelState.IsValid) {var user = waiting for reference. Client.Gate CurrentUserAsync & lt; MyAppUser & gt; (); View return (user); } See Return ("Error"); } [Http post] [facebook authorized ("email", "user_photo")) public async task & lieutenant; Actionsclass & gt; Index (string textile, facebookcontonte context) {if (ModelState.IsValid) {var user = wait context.Client.GetCurrentUserAsync & lt; MyAppUser & gt; (); // See my code, see the use of txt here (user); } See Return ("Error"); } View: @using facebookpostc.models @ Microsoft.AspNet.Mvc.Facebook.models using @ Microsoft.AspNet.Mvc. Facebook @model MyAppUser @ {ViewB...
Read more

Calling a C++ function from C# by passing a string with variable size to it -

I am calling a string with a C + code and calling from the C # code. The C ++ function is responsible for filling the string material. The following code is: C #party: var abc = new string builder (4096); // will have to change this var result = Basic methods. SignCrcFile (ABC); C ++: bool __cdecl SignCrcFile (char * abc) {... char * tempStr = "hello all"; // for example // copy it to ABC string strcpy (ABC, tempStr); Back true; } The problem is that tempStr's size in the C ++ function is dynamic (the above assignment for TempStr is only an example). In such a case, it is not a hard code that the size of ABC string is in the size of 4096 bytes on the C #. The first solution can be a solution to create 2 functions on the C ++ side to get the size of the string. Then allocate that size using StringBuilder in the C # side then use the next function to bring the entire string from C ++ to the C #. But no suggestion this may not be the most optimal way? ...
Read more

ios - Does Core Data autoupdate a many to many relationship on saving -

I have used 2 database tables and core data / NSManagedObjects in SQLite: User is user_id name group (multiple groups) Group group_id title group members (multiple users) By using core data to save a group and adding users ( Add to group) as follows: group * cordata = zero; Cordata = [NSEntityDescription insertNewObjectForEntityForName: @ Managed Object Contains in "Groups": Reference]; Request = [NSFetchRequest fetchRequestWithEntityName: @ "user"]; Request.predicate = [NSPredicate predicateWithFormat: @ "user_id =% @", user_id]; Result = [reference executeFetchRequest: request error: & amp; Error]; CoreData.group_id = group_id Cordettitle = Title [Cordata AdGroupMailersObject: [Last objections result]]; Is it right to say that core data manages a user with multiple users and groups with the code above? Yes, if the relationships are in the form of each other's inverse relationship The inverse relationships are updated automaticall...
Read more