grab | experimental and very fast implementation of a grep | Regex library

 by   stealth C++ Version: grab-0.22s License: Non-SPDX

kandi X-RAY | grab Summary

kandi X-RAY | grab Summary

grab is a C++ library typically used in Utilities, Regex applications. grab has no bugs, it has no vulnerabilities and it has low support. However grab has a Non-SPDX License. You can download it from GitHub.

This is my own, experimental, parallel version of grep so I can test various strategies to speed up access to large directory trees. On Flash storage or SSDs, you can easily outsmart common greps by up a factor of 8. grab uses the pcre library, so basically its equivalent to a grep -P -a. The -P is important, since Perl-Compatible Regular Expressions have different characteristics than basic regexes.
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            kandi-support Support

              grab has a low active ecosystem.
              It has 243 star(s) with 21 fork(s). There are 8 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 0 open issues and 6 have been closed. On average issues are closed in 439 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of grab is grab-0.22s

            kandi-Quality Quality

              grab has no bugs reported.

            kandi-Security Security

              grab has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              grab has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              grab releases are not available. You will need to build from source code and install.
              Installation instructions, examples and code snippets are available.

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            grab Key Features

            No Key Features are available at this moment for grab.

            grab Examples and Code Snippets

            Grab an image from a larger sprite
            pythondot img1Lines of Code : 6dot img1License : Permissive (MIT License)
            copy iconCopy
            def get_image(self, x, y, width, height):
                    # grab an image out of a larger spritesheet
                    image = pg.Surface((width, height))
                    image.blit(self.spritesheet, (0, 0), (x, y, width, height))
                    image = pg.transform.scale(image, (w  
            Grab the capture area of the image .
            pythondot img2Lines of Code : 4dot img2no licencesLicense : No License
            copy iconCopy
            def captureScreen(bbox=(50,50,690,530)):
                capScr = np.array(ImageGrab.grab(bbox))
                capScr = cv2.cvtColor(capScr, cv2.COLOR_RGB2BGR)
                return capScr  

            Community Discussions

            QUESTION

            How to make background images load faster
            Asked 2021-Jun-15 at 22:23

            Most of my WordPress websites have a background image in the top fold. These images are the Largest Contentful Paint Element on the page and usually they get loaded last. Somewhere I read that 'Background images are last in line to be grabbed when a page is loaded'. Is it true?
            Is it a good idea to use a place holder or image in the place of the background image and then change it later so that the LCP gets loaded quickly like below.

            ...

            ANSWER

            Answered 2021-May-14 at 01:42

            You don't want to use a placeholder image to prioritize your background images in situations like this, you want to use . That will tell the browser to start downloading the image as soon as possible.

            Try adding the following code to the of your page, and then use your background image as normal. It should load much faster:

            Source https://stackoverflow.com/questions/67518245

            QUESTION

            VBA - Loading Arrays, Skipping Blanks
            Asked 2021-Jun-15 at 19:54

            Sorry I don't show my variables or anything, tried to give information only pertaining to the questions. This 1 Sub is huge.

            Currently my code allows a user to select multiple files, the files selected will be sorted in a specific format, then loaded into 2 different arrays. Currently loads Columns D:E into 1 array and Columns I:K into another array (from selected files QSResultFileWS, and returns those arrays to my destination FormattingWS. I'm still trying to learn arrays so if the methodology I used to do this isn't proper, be gentle.

            ...

            ANSWER

            Answered 2021-Jun-14 at 23:12

            You can use the FILTER function to remove the blanks.

            Replace you lines load the arrays

            Source https://stackoverflow.com/questions/67977929

            QUESTION

            VBA - NULL values in Listview
            Asked 2021-Jun-15 at 17:10

            I've created a simple VBA interface to connect Excel to a MySQL DB. The VBA part acts as a preview of data for the user to choose what item he wants to import to the Excel sheet.

            Until now I've work with a very complete set of data, but I got to a Table which (because of the nature of the items) some fields are NULL.

            Now every time I try to check the values in the VBA I get the Run-time error 13 Type mismatch in the listview component. At first I though it was a field with DECIMAL typing, but after changing it to a DOUBLE (for testing) the problem persisted, and it was until I notice that if only checks columns with no NULL value, the problem disappears. Off course I can't omit this values.

            I tried some .Tostring functions but with no success. And I failed to implement a IF to check for NULL in the obj.

            This is my code:

            ...

            ANSWER

            Answered 2021-Apr-13 at 10:28

            If you don't want to add a IsNull-function in you SQL (as Nathan_Sav suggested as a comment): There is a IsNull-function in VBA. With that, you can create a simple function that returns for example an empty string (or a 0 or whatever you prefer):

            Source https://stackoverflow.com/questions/67072643

            QUESTION

            Updating multiple values of a Azure DevOps variable group from another variable group
            Asked 2021-Jun-15 at 13:07

            I have a requirement which is as follows:

            Variable Group A, has 7 set of key=value pairs Variable Group B, has 7 set of key=value pairs.

            In both cases keys are the same, values are only different.

            I am asking from the user, the value of be injected in variable group B, user provides me the variable group A name.

            Code snippet to perform such update is as below:

            ...

            ANSWER

            Answered 2021-Jun-15 at 13:07

            You wrongly used update command:

            Source https://stackoverflow.com/questions/67985912

            QUESTION

            Need alternative to getElementByID to update text box via select onchange event
            Asked 2021-Jun-15 at 00:01

            I am creating an array of form elements by copying field in Javascript. I could not use ID's because the fields are system generated.

            What I need is a way to copy the selected text from a drop down and paste it into the very next input box.

            My Layout:

            ...

            ANSWER

            Answered 2021-Jun-15 at 00:01

            Want you want to do is transverse the DOM tree from your element till you get to your .

            One way you can do this is by using the closest() DOM method to get the parent or parent . From there you can find the sibling by using nextElementSibling, and then the input from there, or find the input from the parent using querySelector()

            Source https://stackoverflow.com/questions/67978301

            QUESTION

            Can't collect price from a webpage using vba/selenium in headless mode
            Asked 2021-Jun-14 at 22:25

            I've created a vba script in combination with selenium to scrape price $8.97 from this webpage. The script does fetch the content if I run it in non-headless mode. However, my intention is to grab the content in headless mode. I know I can use their api to fetch the price but the very api gets blocked after 4/5 requests, so I intentionally chose this route.

            I've tried with (works in non-headless mode):

            ...

            ANSWER

            Answered 2021-Jun-01 at 17:54

            You need to wait also properly to get the text, even though your css looks good.

            Or you could set a timeout on the page loading :

            Source https://stackoverflow.com/questions/67793688

            QUESTION

            Grabbing user's textbox input from dynamically created textboxes
            Asked 2021-Jun-14 at 21:27

            I am using Visual Studio with asp.net, vb.net, and webforms.

            My issue is that I need to get the user's textbox input from my dynamically generated textboxes.

            On my button click BtnStep4Next, I dynamically add ServiceForm.ascx (it is a form with FirstName, LastName, City, etc). I add the Service Form to a list, and the list is stored in a session. There could be, for example, 5 webforms (ServiceForm).

            ...

            ANSWER

            Answered 2021-Jun-14 at 21:27

            You are writing way too much code. I mean, if I need 10 variables, do I go

            Source https://stackoverflow.com/questions/67974251

            QUESTION

            Converting Boost ptree node to XML string
            Asked 2021-Jun-14 at 20:24

            I am using boost (version 1.70.0) property tree. Is there a way to convert a node to XML string including the node itself, not just node's children?

            If I have this XML:

            ...

            ANSWER

            Answered 2021-Jun-14 at 20:24

            You can create a helper property tree to hold nothing but the extracted one. This involves some additional copying, but should otherwise work just fine:

            Source https://stackoverflow.com/questions/67976305

            QUESTION

            WordPress SSO - Azure AD B2C - Sign up and sign in User Flow - How to link directly to registration page?
            Asked 2021-Jun-14 at 19:05

            I'm trying to setup a single sign on system using WordPress and Azure AD B2C. I’ve got it working, however, I’m trying to find a way that would allow me to link to the registration page on Azure directly. Currently, I’m only able to generate a link to the Sign-on page. I’d like to find a way to generate a link to the Sign-up page. I’m using the Sign up and sign in User Flow, and due to the way the WordPress Plugin was developed, I can’t use more than this one user flow.

            I've written a script that looks at the source of the Sign on page, grabs the sign-up link and displays it, but that approach doesn’t work.

            I need to be able to display both Sign-on and Sign-up links on my website.

            Can anyone point me in the right direction to where and how I could achieve this?

            Thanks!

            ...

            ANSWER

            Answered 2021-Jun-14 at 19:05

            With one user flow, it's not possible to achieve this. You cannot link to the Sign Up portion of the combined flow. You have to go through the Sign In page to reach the Sign Up page.

            Source https://stackoverflow.com/questions/67973922

            QUESTION

            Uno-Platform implement app tracking prompt
            Asked 2021-Jun-14 at 14:43

            I am in the process of updating my app and with Apple changing the Privacy requirements(I do like this), I believe I need to add App tracking permissions into my app. This is because I use a webview that goes to a third party website that grabs the device IP address and puts a cookie in the view. I am struggling with how to do this in Uno. I know it uses the Xamarin platform underneath- but I am not really understanding how to do this. There are no ads anywhere in the app. I have only been able to find a few examples- so what I am putting below is based off of them.

            I see that I need to add NSUserTrackingUsageDescription to my info.plist. I see that I need to use AttTrackingManager. So- first- how do I import AttTrackingManager into my project in Visual Studio? I checked in Nuget and did not see it. From what I can tell- I need to check for the value in my OnLoaded, and depending on the value I need to either zero out the device ID or do nothing. Also- do I need to check this value anytime my app accesses the webview- User goes to a different page in the app and comes back to the webview(I would think I need to check it)?

            Are my statements above correct? Is the best way to implement the parts in the code using something like this:

            ...

            ANSWER

            Answered 2021-Jun-14 at 14:43

            Your approach seems sound. Let me clarify some of your interrogations.

            1- You are looking for a nuget but you don't need to. ATTrackingManager is part of the iOS SDK (in the AppTrackingTransparency namespace), as long as you target iOS14.5 as a compilation target you will have access to it. The Xamarin.iOS bits are built-in VisualStudio, so just make sure your version is high enough.

            2- You need to add a NSUserTrackingUsageDescription in info.plist as you mentioned. This will be displayed in the popup.

            3- In your code, to prompt the user with the native popup you need something like this.

            Source https://stackoverflow.com/questions/67952562

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

            Vulnerabilities

            No vulnerabilities reported

            Install grab

            There are two branches. master and greppin. Master is the traditional grab that should compile and run on most POSIX systems. greppin comes with its own optimized and parallelized version of nftw() and readdir(), which again doubles speed on the top of speedup that the master branch already provides. The greppin branch runs on Linux, BSD and OSX. greppin also comes with support for Intel’s [hyperscan](https://www.hyperscan.io) libraries that try to exploit CPU’s SIMD instructions if possible (AVX2, AVX512 etc.) when compiling the regex pattern into JIT code.

            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 .
            Find more information at:

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          • HTTPS

            https://github.com/stealth/grab.git

          • CLI

            gh repo clone stealth/grab

          • sshUrl

            git@github.com:stealth/grab.git

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