bup | Badminton Umpire Panel | Build Tool library
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QUESTION
Say I have the following dataframe.
...ANSWER
Answered 2020-Jul-02 at 12:04Use:
QUESTION
def.h
...ANSWER
Answered 2020-May-19 at 23:17Yacc/bison assign their own numbers to terminal tokens, and assume that the lexer will use those numbers. But you provide your own numbers in the def.h header, which yacc/bison knows absolutely nothing about. It will not correctly interpret the codes returned by yylex which will make it impossible to parse correctly.
So don't do that.
Let bison generate the token codes, use the header file it generates (parser.h with your settings), and don't step on its feet by trying to define the enum values yourself.
As a hint about debugging, that is really way too much code to have written before you start debugging, and that fact is exactly illustrated by your complaint at the end of your question that you don't know where to look for the error. Instead of writing the whole project and then hoping it works as a whole, write little pieces and debug them as you go. Although you need to parser to generate the token type values, you don't need to run the parser to test your scanner. You can write a simple program which repeatedly calls yylex and prints the returned types and values. (Or you can just enable flex debugging with the -d command line option, which is even simpler.)
Similarly, you should be able to test your AST methods by writing some test functions which use these methods to build, walk and print out an AST. Make sure that they produce the expected results.
Only once you have evidence that the lexer is producing the correct tokens and that your AST construction functions work should you start to debug your parser. Again, you will find it much easier if you use the built-in debugging facilities; see the Debugging your parser section of the Bison manual for instructions.
Good luck.
QUESTION
I'm experimenting with some touch integration with my web app and i'm noticing that with the code posted below the block that moves on touch has a costant offset and I can temporarly remove it by going in f11 mode. How do i remove it such that the block is always under the finger?
...ANSWER
Answered 2019-Nov-18 at 11:38Alright i solved it my self.
the issue was the touch[0].screenX. I shoud have used touch[0].clientX, same for the Y.
Hope this helps someone, see ya
QUESTION
I'm doing 5 requests, one after another. The first request is getting profile id and access token. And the others are downloading data for each profile id.
I'm doing forEach() and requesting data for every profile id I have. The strange things start when I'm reloading data. Most times it's right but sometimes it gets the data for index 1 first and then for 0. And I can't understand why. I tried for item in id and I tried to save profile ids into another array and use it but it has the same result. The one I didn't try is to tell exactly what index it should use. But I can't understand how the for-loop and request work together. Sometimes request are going one after another, sometimes not.
ANSWER
Answered 2019-May-15 at 21:25When you call,
QUESTION
I have a plugin that offer the user time_slots to be booked. The problem is that it doesnt matter where in the world you are you will see the hours in utc-4. I want client to see the time reflected by their timezone
im a huge js/php newb, but i guess i would need a small function that translate $slot to the user time before printing it with
...ANSWER
Answered 2019-May-09 at 21:52You can do that like this :
QUESTION
I am introducing git and am somewhat confused about the best way of constructing a good folder/file structure that fits git. I am using both git and bup backup. I do want to be able to "breakout" a git structure from private to public.
My question is how to structure git in relation to to other "git:s". Is it best to have one "git" or to have a root "git" with many subfolder that have their own "git" ?.
The aim is to minimize the administration and complexity. The main structure as start point is somewhat like this:
- Root (hard disk)
-- projects (git repository, main).
---> project-1 (git repository)
---> project-2 (git repository)
---> project-3 (git repository)
-- shared (git repository)
-- unsorted - exluded from git.
...ANSWER
Answered 2018-Oct-24 at 07:16There's no single best way to structure a project but generally every project has its own repository (a single .git/ folder in the root of the project).
So instead of having a main repository with submodules for all of your projects you could have multiple repositories and no 'main repository'.
This is all subjective however, as different structures apply to different projects.
Here's an example of a project structure that's often used:
QUESTION
I'm trying to parse an input string of type "move 2 up;1 right;1 down" using a regex, but I can't seem to figure out how to get all groups of commands while ignoring the "move" keyword.
My regex is:
...ANSWER
Answered 2018-Sep-05 at 22:39The simplest way to do this is to create a regular expression to match only the part you need (number and direction) without "move" or the semicolons. Then match it to the string and add all groups to a list.
QUESTION
I've got a file-to-file copy from a DVD, consisting of a Video_TS directory with a bunch of BUP, IFO and VOB files. I can open some (not all) of these files in a player like VLC, and it seems to contain fragments of the movie but it appears like garbage. As if the encoding or file structure is corrupted.
However, if I open the entire Video_TS dir with VLC, it plays fine.
Is there a way to convert this Video_TS dir to one single video file, such as an MP4 or MKV?
I've read about the possibility of binary concatenating the VOB files, and I tried that, but to no avail. Also I wouldn't know how to the determine the exact order of the VOB files, and more importantly that information must be within the files itself somehow (considering that video players can play it automatically).
(edit) Someone edited the question and removed the ffmpeg part. Sorry if I didn't clarify this further: I'm actually explicitly looking for a way to do this with ffmpeg (from shell, on macOS).
...ANSWER
Answered 2018-Aug-29 at 13:54While this answer is quite late, I just ran into this the other day. Often, with FFmpeg you can try doing cat *.VOB >out.vob or similar, but that didn't work for me. However, with HandBrakeCLI (the command line version) I was able to get it working by using the --main-feature option.
QUESTION
I have the following tables:
Book
...ANSWER
Answered 2018-Aug-14 at 16:24I would join to separate subquery to find the total number of users who read a given page. Then, you only need to tag on another left join to BookUserPage to generate the Read column:
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