Parser-Combinators | C parser combinator library | Parser library

 by   keean C++ Version: Current License: MIT

kandi X-RAY | Parser-Combinators Summary

kandi X-RAY | Parser-Combinators Summary

Parser-Combinators is a C++ library typically used in Utilities, Parser applications. Parser-Combinators has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

the latest version now supports functionality equivalent to an attribute grammar, where the parser result (synthesized attribute) is returned bottom up, and state (inherited attribute) is threaded trough the parsers accumulating values left-to-right. this needs some care to interact with backtracking, as the state needs to be backtracked as well. the attempt parser combinator deals with saving the current result and state and restoring it on backtracking, but this relies on the state being copyable. if there is only single-character look-ahead failed parsers do not consume characters, and so backtracking is unnecessary, and the state does not need to be copyable.. a high performance c++ parser combinator library, focusing static instantiation of combinators, which differentiates it from other libraries such as boost.spirit. the library design ensures that all combinator composition occurs at compile time, with a special construct (a parser-handle) used to allow dynamic runtime polymorphism at specific points. as backtraking is supported, parsers can generally consist of a set of independent static parse rules, and a single parser-handle to enable polymorphic recursion. however higher level parser combinators
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              Parser-Combinators has a low active ecosystem.
              It has 92 star(s) with 8 fork(s). There are 7 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              Parser-Combinators has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of Parser-Combinators is current.

            kandi-Quality Quality

              Parser-Combinators has no bugs reported.

            kandi-Security Security

              Parser-Combinators has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              Parser-Combinators 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

              Parser-Combinators releases are not available. You will need to build from source code and install.

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            Parser-Combinators Key Features

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            Parser-Combinators Examples and Code Snippets

            No Code Snippets are available at this moment for Parser-Combinators.

            Community Discussions

            QUESTION

            Property of an object extending App has null value when accessed in REPL
            Asked 2021-Apr-02 at 15:10

            My question is how do I access DownloadFiles.fileURLList property in sbt console (Scala REPL)?

            I created a SBT Scala project and have this code at src/main/scala/DownloadFiles.scala

            ...

            ANSWER

            Answered 2021-Apr-02 at 13:10

            The first part of your code uses a variable called fileURLList. The second part of your code and your SBT command use imageURLList. imageURLList is never declared as a variable, therefore it is null. Find and replace your code from fileURLList to imageURLList and I bet it will do what you were expecting.

            I am a little surprised you didn't get other errors though.

            Source https://stackoverflow.com/questions/66919284

            QUESTION

            "Insecure HTTP request is unsupported" Error in Scala
            Asked 2020-Dec-03 at 12:00

            I am getting the following error when attempting to run sbt run to run my Scala code:

            insecure HTTP request is unsupported 'http://repo.typesafe.com/typesafe/releases'; switch to HTTPS or opt-in as ("typesafe-releases" at "http://repo.typesafe.com/typesafe/releases").withAllowInsecureProtocol(true), or by using allowInsecureProtocol in repositories file

            This is strange because it was working perfectly fine last week and I have changed nothing in the code. I have tried adding ("typesafe-releases" at "http://repo.typesafe.com/typesafe/releases").withAllowInsecureProtocol(true) in my build.sbt file and resolver file, installing Java11, deleting my project folder, and completely reclone my code from the repository but nothing is working. I am using Visual Studios but have also tried on IntelliJ and get the same error.

            Any advice would be greatly appreciated, as I have changed nothing and now suddenly my code doesn't compile anymore. Further details:

            sbt.version = 1.4.0

            Scala code runner version 2.12.10

            My current built.sbt (please note that I did not have the resolve part added before, when my code was working fine. It was added as an attempt to resolve the issue but did not work):

            ...

            ANSWER

            Answered 2020-Nov-24 at 15:49

            As mentioned in repo.typesafe.com, you can add to your sbt:

            Source https://stackoverflow.com/questions/64989130

            QUESTION

            Installing Eclipse PDE Plugin in Windows
            Asked 2020-Jul-30 at 20:33

            I am having difficulty getting my Eclipse PDE plugin to work in a Windows environment. I have created an Eclipse PDE plugin that uses external jars. I was able to install the plugin to my Eclipse IDE on my MacBook (macOS Catalina 10.15), by right clicking on the project then Export>Deployable plugins and Fragments>Install into host repository>Finish. The pathway for the host repository is /Users/username/eclipse-workspace/.metadata/.plugins/org.eclipse.pde.core/install/. The attributes chosen in the Options category are shown in the photo below:

            The plugin installs successfully and is able to run in my IDE upon button click.

            When I repeat these steps in Windows 10, the plugin installs. I am able to click on a button to open my developed window, but when I click the "go" button which triggers my functions that rely on the external jars, nothing occurs. The button acts as though it is not connected to any function, despite the code being identical to what was used in Mac. Does anyone know why Eclipse is unable to access the necessary jars in Windows?

            I have attached a screenshot of my build properties below. Note that the jars are held in a directory called "lib" which is at the same level as the /src directory in a eclipse plugin project.

            ...

            ANSWER

            Answered 2020-Jul-30 at 20:33

            Update: the issue appeared to be with the windows computer I was using. The plugin installed as intended with this code on another windows machine.

            Source https://stackoverflow.com/questions/63024062

            QUESTION

            Why doesn't "between (char '"') (char '"') (many charLiteral)" work for parsing string literals?
            Asked 2020-May-06 at 09:19

            The documentation for Text.Megaparsec.Char.Lexer.charLiteral suggests using char '"' *> manyTill charLiteral (char '"') for parsing string literals (where manyTill is defined in the module Control.Applicative.Combinators in the parser-combinators library).

            However, Control.Applicative.Combinators also defines between, which -- as far as I can see -- should do the same as the above suggestion when used like so: between (char '"') (char '"') (many charLiteral).

            However, using the between parser above does not work for parsing string literals -- failing with "unexpected end of input. expecting '"' or literal character" (indicating that the ending quote is never detected). Why not?

            Also, more generally, why isn't between pBegin pEnd (many p) equivalent to pBegin *> manyTill p pEnd?

            ...

            ANSWER

            Answered 2020-May-06 at 09:19

            between l r m doesn't do anything spectacular, it really just tries l then m then r and gives back the result of m. So, in between (char '"') (char '"') (many charLiteral), the many charLiteral doesn't know it's not supposed to consume the ". The many just keeps consuming whatever its argument parser accepts... which, because charLiteral just accepts anything, means it churns right through everything until the end of the input. The second char '"' has no way of stopping this, it just needs to make do with what's left... i.e., fail because there is nothing left!

            By contrast, manyTill actually checks whether the “till”, matches, and only applies each iteration of the content parser when it doesn't. Therefore, the terminating " is not passed to charLiteral, and you get the desired behaviour.

            Source https://stackoverflow.com/questions/61631282

            QUESTION

            How exclude all test jars* from mvn dependency:tree
            Asked 2020-Apr-14 at 23:56

            is there any way to exclude dependencies used during test goal? For example I would like to avoid having all *:tests jar printed by mvn dependency:tree.

            ...

            ANSWER

            Answered 2020-Apr-14 at 23:56

            You can add the scope like this:

            Source https://stackoverflow.com/questions/61212704

            QUESTION

            Trying to understand scala ^^ syntax
            Asked 2020-Mar-23 at 11:24

            I'm beginner in scala and looking at this tutorial : http://enear.github.io/2016/03/31/parser-combinators/

            Event it is explained just below :

            The ^^ operator acts as a map over the parse result. The regex "[a-zA-Z_][a-zA-Z0-9_]*".r is implicitly converted to an instance of Parser[String], on which we map a function (String => IDENTIFIER), thus returning a instance of Parser[IDENTIFIER].

            I dont understand this code snippet :

            ...

            ANSWER

            Answered 2020-Mar-23 at 11:24

            It defines the operation that needs to be performed when the left-hand side expression is evaluated.

            For instance, we have some code like this:

            Source https://stackoverflow.com/questions/60811263

            QUESTION

            ClassCaseException org.slf4j.impl.SimpleLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext
            Asked 2020-Mar-11 at 07:41

            A type incompatibility occurred while executing com.cerner.clinicaldev:gatling-plugin:1.0.0-SNAPSHOT:run: org.slf4j.impl.SimpleLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext

            I am writing a maven mojo that spins up a Jetty implementation and runs Gatling programmatically. I have tried excluding slf4j from the io.gatling:gatling-app:2.2.5 and including in the maven-enforcer-plugin as a banned dependency all no no avail.

            I cannot see anywhere else in the dependency tree that includes it;

            ...

            ANSWER

            Answered 2017-Jul-17 at 05:58

            Trying add bellow dependency which included logback-classic

            Source https://stackoverflow.com/questions/45133523

            QUESTION

            NoSuchMethodError: com.fasterxml.jackson.datatype.jsr310.deser.JSR310DateTimeDeserializerBase.findFormatOverrides on Databricks
            Asked 2020-Feb-19 at 08:46

            I'm working on a rather big project. I need to use azure-security-keyvault-secrets, so I added following to my pom.xml file:

            ...

            ANSWER

            Answered 2019-Dec-27 at 18:36

            So I managed to fix the problem with the maven-shade-plugin. I added following piece of code to my pom.xml file:

            Source https://stackoverflow.com/questions/59498535

            QUESTION

            Could not find module `XMonad` when attempting to compile
            Asked 2019-Dec-23 at 11:38

            I see a couple other people with the same issue however none of the solutions worked for me. The following commands+outputs are mainly what I have tried. I am posting 1) because I have been stuck on this for some time and 2) I wanted to leave a comment on another post but I have no reputation :(

            I have reinstalled my os (arch linux), keeping only my home files however I deleted .stack, .ghc, and .cabal folders.

            yay -S xmonad xmonad-contrib
            stack install xmonad xmonad-contrib sudo ghc-pkg recache

            xmonad --recompile:

            ...

            ANSWER

            Answered 2019-Dec-23 at 11:38

            Sounds like an issue with cabal - I think there are some packaging difficulties on Arch Linux.

            As an alternative, you can manually build a Haskell project with your specific xmonad config, once you know this builds correctly, you can create a ~/.xmonad/build shell file, and in here trigger a build to your xmonad config/application.

            So the contents of build might be:

            Source https://stackoverflow.com/questions/59440585

            QUESTION

            c# - How to execute a .Jar file with Arguments.Length > 8191
            Asked 2019-Dec-21 at 19:39

            I should starting a .jar several times like this

            ...

            ANSWER

            Answered 2018-Mar-11 at 12:08

            You could make your program receive a file as an argument and read it. The file would have one or more lines depending the number of arguments you'd like to pass to the program.

            Your program would need to receive the file and parse it line by line.

            Source https://stackoverflow.com/questions/49210775

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

            Vulnerabilities

            No vulnerabilities reported

            Install Parser-Combinators

            You can download it from GitHub.

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