Java-Compiler | Java Compiler , with functional lexical analyzer | Parser library
kandi X-RAY | Java-Compiler Summary
kandi X-RAY | Java-Compiler Summary
I’ve created this project for self-educational purposes of understanding how compilers work. I do have the added incentive of wanting to create my own programming language and thought, what better place to start than programming your own compiler. I decided to do this in Java. The reference that I used to build this project was the infamous work of art known as the Dragon Book. Majority of the code however is mine. I merely used the book as a tool for learning and understanding the science behind compilers. Danyal Rehman University of Toronto danyal.rehman@gmail.com.
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Top functions reviewed by kandi - BETA
- Command line parser
- Matches an expression
- Match term
- Match number
- Writes a character
- Writes a single character
- Writes a string to the output stream
- Writes a single character
- Reads a character from the file
- Reads this message from the standard input stream
- Close the reader
- Create a new reader
- Closes the output stream
Java-Compiler Key Features
Java-Compiler Examples and Code Snippets
Community Discussions
Trending Discussions on Java-Compiler
QUESTION
I am trying to create Java bindings for EDIFACT messages using Smooks. In particular, I want to automatically generate Java classes and corresponding mappings using Smooks. To this end, Smooks 1.x provides the EDIFACT-to-Java-Compiler (EJC).
With the upcoming version 2, Smooks relies on schemas written in the Data Format Description Language (DFDL) to specify EDIFACT messages instead of Smooks-specific schemas used in v 1.x. To my understanding, this means that EJC v1.x cannot be used to generate EDIFACT bindings for Smooks v2. Is this correct?
If so, what is the preferred way to generate bindings? Will there be an upcoming EJC v2? Or should I use the XML Schema Compiler (XJC) to generate Java classes and then either map them directly in Smooks, or do a two-step transformation EDIFACT -> (Smooks v2) -> XML -> (JAXB) -> Java?
Thanks for your insights!
...ANSWER
Answered 2022-Jan-11 at 10:00Is this correct?
Yes.
Or should I use the XML Schema Compiler (XJC) to generate Java classes and then either map them directly in Smooks, or do a two-step transformation EDIFACT -> (Smooks v2) -> XML -> (JAXB) -> Java?
That's the recommended approach as discussed in the Smooks user forum. The Java bindings for many of the EDIFACT versions have already been generated ahead of time and can be pulled down from the public Maven repository as shown in one of the Smooks examples.
QUESTION
from 5 months ago I use Intellij Idea CE to develop an android studio plugin
but
after Android studio latest update
...ANSWER
Answered 2021-Aug-05 at 09:37As gradle-intellij-plugin doesn't support Android Studio natively, it doesn't know what compiler version should be used for local AS SDK, and it tries to compiler with the same version as AS, which does not exist. To fix that, you need to specify a particular compiler version explicitly using instrumenting dsl.
All available versions are listed in intellij maven repository. In your case, I think 203.7717.56 would be just fine.
So the configuration should look like this:
QUESTION
I noticed a difference in the output of the following program when run with Java 8 and Java 9.
...ANSWER
Answered 2021-Jan-28 at 13:30The difference seems to be in the implementation of getMethod
API in use which is visible by the stated documentation starting Java-9 :
Within each such subset only the most specific methods are selected. Let method M be a method from a set of methods with same VM signature (return type, name, parameter types). M is most specific if there is no such method N != M from the same set, such that N is more specific than M. N is more specific than M if:
a. N is declared by a class and M is declared by an interface; or
b. N and M are both declared by classes or both by interfaces and N's declaring type is the same as or a subtype of M's declaring type (clearly, if M's and N's declaring types are the same type, then M and N are the same method).
While Java-8 follows up internally with interfaceCandidates.getFirst()
(i.e. the order change matters here), the upgraded version seems to be working on the specific algorithm using res.getMostSpecific()
before returning the method asked for.
QUESTION
I'm working on a school project with the purpose to create a program to manage and organize an event. I have several classes that all work fine and don't have any errors. Unfortunately this is not the case for my EventUI.java :
Fixed all the errors I could solve but I don't understand the remaining 3 errors:
*
...ANSWER
Answered 2020-Apr-04 at 22:16In your EventUI class, you call several e.addListe()', but these methods don't exist on the
Eventclass. Instead you should call the
e.add()` methods, with corrections shown below for the EventUI class:
QUESTION
I want to split a string using a regex expression, but I failed to find the correct expression, this is below the code used and also the expected result you can run the code in https://www.jdoodle.com/online-java-compiler/
and replace may regex by the correct one thanks in advance.
...ANSWER
Answered 2020-Jan-26 at 19:17Instead of using split, you could use 3 capturing groups and nest the 3rd group inside the 2nd group and make use of a negated character class [^,]+
matching any char except a comma, and match 0+ horizontal whitespace characters \h*
in between
QUESTION
When running the below code I get different behaviour with different versions of the JDK:
In Java 8 I get:
...ANSWER
Answered 2020-Jan-07 at 10:21The behaviour of the formatter hasn't changed, but the thing you're formatting has.
The precision of datetimes returned by now()
methods increased. JDK-8068730
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install Java-Compiler
You can use Java-Compiler 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 Java-Compiler 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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