einstein | Simple , safe arithmetic parser for Ruby | Parser library

 by   omghax Ruby Version: Current License: MIT

kandi X-RAY | einstein Summary

kandi X-RAY | einstein Summary

einstein is a Ruby library typically used in Utilities, Parser applications. einstein has no bugs, it has a Permissive License and it has low support. However einstein has 2 vulnerabilities. You can download it from GitHub.

The Einstein library provides a simple arithmetic parser for Ruby apps. Sure, you could just use eval, but then you’re opening yourself up to a world of hurt when you accept code from untrusted sources (ie. your users). With Einstein, you get a safe, "locked-down" arithmetic parser and evaluator that can’t run system commands or otherwise hose your server in the event of a malicious code snippet. Einstein was built as an excercise in language parsing in Ruby. I’m releasing it in the hopes that someone will find the code useful, or learn something from it…​or, better yet, teach me a thing or two about writing parsers :-P.
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            kandi-support Support

              einstein has a low active ecosystem.
              It has 4 star(s) with 0 fork(s). There are 3 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              einstein has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of einstein is current.

            kandi-Quality Quality

              einstein has 0 bugs and 0 code smells.

            kandi-Security Security

              einstein has 2 vulnerability issues reported (0 critical, 0 high, 0 medium, 2 low).
              einstein code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              einstein is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              einstein releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.
              It has 1997 lines of code, 294 functions and 14 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed einstein and discovered the below as its top functions. This is intended to give you an instant insight into einstein implemented functionality, and help decide if they suit your requirements.
            • Takes a string and returns an array of tokens .
            • Processes the sexp .
            • Load a scan file
            • Scan the specified file .
            • Scan the given string .
            • Processes a resolve scope
            • Processes one or more processing
            • Retrieve the next token
            • Reduces the result with the given values .
            • Generate a binary string
            Get all kandi verified functions for this library.

            einstein Key Features

            No Key Features are available at this moment for einstein.

            einstein Examples and Code Snippets

            Einsum operator .
            pythondot img1Lines of Code : 144dot img1License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def einsum(equation, *inputs, **kwargs):
              r"""Tensor contraction over specified indices and outer product.
            
              Einsum allows defining Tensors by defining their element-wise computation.
              This computation is defined by `equation`, a shorthand form ba  

            Community Discussions

            QUESTION

            Case and accent insensitive matching of words in two files
            Asked 2022-Mar-21 at 23:27

            I got two unquoted and single column TSV files (exported from a database) with a few thousand people names and I need to find the names that appear in both files. Both files are UTF-8, CRLF terminated, and start with the BOM 0xEF 0xBB 0xBF.

            A simple join or comm command could have done the trick but there are a few differences in the names:

            ...

            ANSWER

            Answered 2022-Feb-14 at 13:10

            How about agrep? man agrep: agrep - search a file for a string or regular expression, with approximate matching capabilities. It's not perfect like we will see:

            Source https://stackoverflow.com/questions/71111940

            QUESTION

            I'm trying to print only uppercase letters from some input using for loop to iterate trough characters, but for some reason it doesn't work
            Asked 2022-Mar-21 at 06:51

            I'm 100% sure from testing that for loop does iterate through characters how is it suposed to, but the other part of the program isn't working correctly. Im trying with if statement to print only uppercase characters.

            Here are some input/output samples to get a better pitcure what this program is about:
            Input: Tim-Berners-Lee Output: TBL
            Input: Albert-Einstein Output: AE

            Here is the code:

            ...

            ANSWER

            Answered 2022-Mar-21 at 06:51

            Your code will calculate compare name[i] == 'A' first and then take the result to do OR operation with 'B', 'C', and so on..., which absolutely won't work.

            You should do name[i] == 'A' || name[i] == 'B' || ... or just use std::isupper().

            Source https://stackoverflow.com/questions/71542209

            QUESTION

            Auto rearrange .show cards (in a portfolio) jQuery CSS html
            Asked 2022-Mar-16 at 19:16

            I wanted to make a portfolio with card filter effect (to show only relevant cards to a selected category when click a button and to hide other none relevant cards) For that I categorized cards in to 2 categories(classes) as books and articles.

            when I click the button "articles" the .show cards are remaining in their original place in the grid (UI) and .hide cards spaces in the UI looks blank rather than re arranging .show cards to fill the gaps.

            So need to make show cards to auto arrange without showing empty spaces in (UI).

            when click the button "all"

            when click the button "articles"

            ...

            ANSWER

            Answered 2022-Mar-16 at 19:16

            The JavaScript part is okay but you've added the target classes to the wrong elements. You should add the classes that you're targeting (.all, .books, .articles) to the .portfolio-item element instead.

            Example: Change

            Source https://stackoverflow.com/questions/71502465

            QUESTION

            WIkipedia API get text under headers
            Asked 2022-Mar-12 at 07:39

            I can scripe a wikipedia usein wikipedia api

            ...

            ANSWER

            Answered 2022-Mar-12 at 07:39

            You don't want to call re twice, but rather iterate directly through the results provided by regex_result. Named groups in the form of (?P...) make it even easier to extract the header name without the surrounding markup.

            Source https://stackoverflow.com/questions/71320082

            QUESTION

            How can I give Bootstrap select a normal height if there is nothing selected?
            Asked 2022-Feb-04 at 14:16

            I am using bootstrap select in my page and I need it to be empty by default (and value="") when the page loads (it is a required field so when the user submits the form, the validation message will appear in case it's empty).

            It actually works but it looks weird/odd/too flat:

            And this would be the desired result:

            I have used this attribute to make the select look empty: data-none-selected-text="" and it actually looks empty but too flat.

            If I remove that attribute, I'll get this Nothing selected placeholder which I don't want:

            How can I make the design consistent and keep the same size whether something is selected or not?

            ...

            ANSWER

            Answered 2022-Feb-01 at 16:52

            You can overwrite default bootstrap class and make an exception for this scenario.

            Source https://stackoverflow.com/questions/70936173

            QUESTION

            How to aggregate nested json array in Pandas?
            Asked 2022-Jan-27 at 10:26

            I have simple json what i read with pandas:

            ...

            ANSWER

            Answered 2022-Jan-27 at 10:26

            If I understand correctly, you want to apply a function to the students column that 'flattens' the list of dictionaries into a string, right?

            Source https://stackoverflow.com/questions/70876166

            QUESTION

            Why are my navigation circles on carousel not updating when clicked?
            Asked 2021-Dec-19 at 10:03

            I am building my own carousel from scratch and everything works perfectly fine except for when you click the navigation circles. If you have the interval/infinite loop prop, the circles update to the correct active slide and the same goes for pressing the side left and right buttons. However, when I click the circles directly, things get all messed up and the carousel breaks. It obviously has something to do with the switchSlide function I've written for that action, but I cannot figure it out for the life of me.

            Any help or advice would be greatly appreciated!

            Cheers!

            Here is the Codesandbox I've made

            NOTE: I just put the index inside of each circle just to maake sure the proper amount were rendering.

            Carousel.vue

            ...

            ANSWER

            Answered 2021-Dec-19 at 10:03

            Try to change method call, from:

            Source https://stackoverflow.com/questions/70407832

            QUESTION

            During recursive scraping in scrapy, how extract info from multiple nodes of parent url and associated children url together?
            Asked 2021-Nov-22 at 13:09

            The parent url got multiple nodes (quotes), each parent node got child url (author info). I am facing trouble linking the quote to author info, due to asynchronous nature of scrapy?

            How can I fix this issue, here's the code so far. Added # <--- comment for easy spot.

            ...

            ANSWER

            Answered 2021-Nov-22 at 13:09

            Here is the minimal working solution. Both type of pagination is working and I use meta keyword to transfer quote item from one response to another.

            Source https://stackoverflow.com/questions/70062567

            QUESTION

            Why am I getting just one item (instead of multiple items) in a pandas column?
            Asked 2021-Nov-19 at 02:10

            Here is my code:

            ...

            ANSWER

            Answered 2021-Nov-19 at 02:07

            QUESTION

            How to map according to key on objects?
            Asked 2021-Oct-31 at 07:33

            I'm trying to map through object values and add text if the key is right on JavaScript. Here is our object:

            ...

            ANSWER

            Answered 2021-Oct-31 at 04:13

            You don't need to use Object.fromEntries(), instead, you make your function return a new object, with a transformed className based on the return value of fn. You can then set the children: key on the object to be a mapped version of all the objects inside of the children array. When mapping, you can pass each child into the recursive call to your addToClassName() function. You can add the children key conditionally to the output object but checking if it exists (with children &&) and then by spreading the result using the spread syntax ...:

            Source https://stackoverflow.com/questions/69783811

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install einstein

            You can download it from GitHub.
            On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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          • HTTPS

            https://github.com/omghax/einstein.git

          • CLI

            gh repo clone omghax/einstein

          • sshUrl

            git@github.com:omghax/einstein.git

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