copper | An integrated context-aware scanner and parser generator | Parser library

 by   melt-umn Java Version: v1.0.0 License: LGPL-3.0

kandi X-RAY | copper Summary

kandi X-RAY | copper Summary

copper is a Java library typically used in Utilities, Parser applications. copper has no bugs, it has no vulnerabilities, it has build file available, it has a Weak Copyleft License and it has low support. You can download it from GitHub.

Copper is a Java-based integrated scanner and parser generator developed by the Minnesota Extensible Language Tools (MELT) research group at the University of Minnesota with assistance from the National Science Foundation, IBM, the McKnight Foundation, and Adventium Labs. It serves as the parsing back-end of Silver, another MELT tool. Copper employs the LALR(1) parsing algorithm in conjunction with a modified scanning algorithm, context-aware scanning, which uses parsing context to resolve lexical ambiguities. This allows for more declarative parser specifications, especially of embedded and extensible languages. It also provides an analysis for use with extensible languages. The pass/fail analysis is applied independently to each language extension, and any combination of passing extensions is guaranteed to compile without parse-table conflicts. This lets any end-user pick and choose extensions in the same manner as libraries.
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            kandi-support Support

              copper has a low active ecosystem.
              It has 13 star(s) with 3 fork(s). There are 11 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 13 open issues and 22 have been closed. On average issues are closed in 127 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of copper is v1.0.0

            kandi-Quality Quality

              copper has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              copper is licensed under the LGPL-3.0 License. This license is Weak Copyleft.
              Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

            kandi-Reuse Reuse

              copper releases are available to install and integrate.
              Build file is available. You can build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed copper and discovered the below as its top functions. This is intended to give you an instant insight into copper implemented functionality, and help decide if they suit your requirements.
            • Transition character
            • Return the numeric index of the last character
            • Find the codepoint
            • Returns 1 if the codepoint
            • Generates a LAL engine
            • Build the subfa for the given regexes
            • Sets the parse table cell
            • Execute compiler parameters
            • Executes compiler parameters
            • Outputs terminal information to the output stream
            • Starts the copper application
            • Output the init functions
            • Visit a terminal bean
            • Check the syntax for all ambiguities
            • Check for ambiguities in the given grammar
            • Removes extraneous ranges
            • Builds the source
            • Generate symbol maps
            • Filter a terminal
            • Checks that a production is valid
            • Runs the engine
            • Output init functions
            • Generate the NFA scanner
            • Transition the character
            • Full symmatrix function
            • Symbol_add_0
            Get all kandi verified functions for this library.

            copper Key Features

            No Key Features are available at this moment for copper.

            copper Examples and Code Snippets

            No Code Snippets are available at this moment for copper.

            Community Discussions

            QUESTION

            Treetable with horizontal scrollbar
            Asked 2021-Jun-11 at 18:11
            Codepen example

            Here's a codepen demonstrating a treetable with groups:

            https://codepen.io/dharmatech/full/mdWGbox

            Screenshot

            Screenshot of the above treetable:

            The Issue

            Only some of the columns are shown; there are many more available. However, note that there is no horizontal scrollbar shown at the bottom to bring the other columns into view.

            Is there a way to turn on a horizontal scrollbar?

            Approaches I've explored

            I've tried each of these:

            ...

            ANSWER

            Answered 2021-Jun-11 at 09:04

            Your code is correct. And TreeTable does show all columns, you just miss the horizontal scroll at bottom of the grid.

            To fix the situation, you need to

            • init UI in container ( currently it is atached to the body ). To do so you need to add container property to the UI configuration

            Source https://stackoverflow.com/questions/67929929

            QUESTION

            How to make a search bar that filters the list with their class attribute?
            Asked 2021-Jun-05 at 12:46

            I'm having a search bar that filters the list with their name(eg:orange, copper). Is there any way to filter the results by using their class attribute.

            ...

            ANSWER

            Answered 2021-Jun-05 at 12:46

            Since you are going to enter input with spaces, so it would be better to make it into an array. Also, you have classes in a i.e using a.classList that will return classes in an array-like data structure.

            Now you're having two arrays, so you can filter the result if all input classes array exists in any of the a classes.

            The best part is you can search even in reverse order like car animal and it would give you Jaguar.

            It searches partially and also search for partial input also like a c or c a gives Jaguar.

            Source https://stackoverflow.com/questions/67849245

            QUESTION

            Loop through an array and set the value of any html inputs that match the array values
            Asked 2021-May-19 at 22:20

            I'm trying to find the most efficient way of looping through an array of strings, and then click a corresponding checkbox input that matches any of the values found within the array.

            I came up with the below, which works, but I think there's probably a more efficient solution. Anyone have any tips to help me clean this up?

            ...

            ANSWER

            Answered 2021-May-19 at 21:48

            Loop through the array.

            Source https://stackoverflow.com/questions/67611290

            QUESTION

            Object.entries from json to read out with svelte
            Asked 2021-May-19 at 22:02

            i have a question, i have follow JSON file:

            ...

            ANSWER

            Answered 2021-May-19 at 13:08

            QUESTION

            Google Sheets: Compare each cell of a column seperately and check another cell in the found row for conditional formatting
            Asked 2021-May-18 at 14:50

            Hello all Sheet users out there.

            I have a sheet with a list of resources with their production and usage being calculated on the left side and the overall prod/use being monitored on the right side.

            ...

            ANSWER

            Answered 2021-May-18 at 03:22

            try this formula =VLOOKUP($A1,$E:$H,4,false)<0 in conditional formatting

            Source https://stackoverflow.com/questions/67578754

            QUESTION

            Python - Recursively find how many y's it takes to make a x
            Asked 2021-May-14 at 21:35

            I am trying to find a recursive solution to find how many units make up a whole. Example of dictionary I am working with:

            ...

            ANSWER

            Answered 2021-May-14 at 16:44

            The solution is to have a recipes dict that gives you the recipe for each item in a consistent way. Having an extra level of indirection in half of your recipes (the parts dict) makes it difficult to write one block of code that can handle either type of recipe. Keep it simple:

            Source https://stackoverflow.com/questions/67537672

            QUESTION

            How to make a slide when the screen is zoomed out?
            Asked 2021-May-13 at 20:08

            ...

            ANSWER

            Answered 2021-May-13 at 20:08

            If you want a media query like solution for javascript you have to listen for the resize event with an event listener and call the slide function showSlides() in it. In the slide function you have to wrap the code in the if statement that asks for window.innerWidth. Additionally you have to define an else block for showing the images again.

            Source https://stackoverflow.com/questions/67488580

            QUESTION

            How to rename a deeply nested key in list of dictionaries (Python 3)?
            Asked 2021-May-13 at 15:48

            Given the following dict (part of very long list of dicts):

            ...

            ANSWER

            Answered 2021-May-13 at 15:09

            QUESTION

            Scraping weird table structure using beautiful soup
            Asked 2021-May-12 at 15:46

            I am trying to scrape a couple of tables from this website which are hidden under an expand button. However it looks like the table structure is really weird and I'm having trouble.

            my code so far is

            ...

            ANSWER

            Answered 2021-May-12 at 15:31

            Make your life easier and just dump the HTML to pandas. All the tables are there and you can access them either with a for loop or via indexing.

            Here's how:

            Source https://stackoverflow.com/questions/67505328

            QUESTION

            How to use a character value when using the 'model' function to call the model/variable to forecast?
            Asked 2021-May-11 at 10:48

            My aim is to make a function where you input the variable you want forecasted, and then use cross validation on multiple types of models (ie. Naive, ETS, Mean), then using the 'pull' function I will pull out the model with the lowest RMSE, then I will forecast 1 step ahead with the best model.

            However, I am having trouble with the second last line, using the character value 'best.model' as the input for the model when forecasting. (Error is below the code, which you an run yourself).

            Here is the code to make more sense:

            ...

            ANSWER

            Answered 2021-May-11 at 10:34

            Here is a solution that takes a slightly different approach, first defining a named list of models to choose from and then using best.model to choose from the list. This is generally preferable to getting bogged down by non-standard-evaluation. Note also that I've used {{ to 'pipe' unquoted arguments. You'll notice I've also changed some object names. This is because you should generally avoid . in object names to avoid confusion with the S3 system of object-oriented programming in R.

            Source https://stackoverflow.com/questions/67483452

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

            Vulnerabilities

            No vulnerabilities reported

            Install copper

            You can download it from GitHub.
            You can use copper like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the copper component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

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