ScriptREPL (SciJava Javadocs 0-SNAPSHOT API)

java.lang.Object
- org.scijava.script.ScriptREPL

```
public class ScriptREPL
extends Object
```
A REPL for SciJava script engines, which allows dynamic language switching.

Author:

Curtis Rueden

Constructor Summary

Constructors
Constructor and Description
`ScriptREPL(Context context)`
`ScriptREPL(Context context, OutputStream out)`
`ScriptREPL(Context context, String language)`
`ScriptREPL(Context context, String language, OutputStream out)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`debug()`
`boolean`	`evaluate(String line)` Evaluates the line, including handling of special colon-prefixed REPL commands.
`List<ScriptLanguage>`	`getInterpretedLanguages()` Gets the list of languages compatible with the REPL.
`ScriptInterpreter`	`getInterpreter()` Gets the script interpreter for the currently active language.
`void`	`help()` Prints a usage guide.
`void`	`initialize()` Outputs a greeting, and sets up the initial language and variables of the REPL.
`void`	`initialize(boolean verbose)` Sets up the initial language and variables of the REPL.
`void`	`lang(ScriptLanguage language)` Creates a new `ScriptInterpreter` to interpret statements, preserving existing variables from the previous interpreter.
`void`	`lang(String langName)` Creates a new `ScriptInterpreter` to interpret statements, preserving existing variables from the previous interpreter.
`void`	`langs()`
`void`	`loop()` Starts a Read-Eval-Print-Loop from the standard input stream, returning when the loop terminates.
`void`	`loop(InputStream in)` Starts a Read-Eval-Print-Loop from the given input stream, returning when the loop terminates.
`static void`	`main(String... args)`
`void`	`prompt()` Outputs the prompt.
`void`	`vars()` Lists variables in the script context.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ScriptREPL
```
public ScriptREPL(Context context)
```
  - ScriptREPL
```
public ScriptREPL(Context context,
                  OutputStream out)
```
  - ScriptREPL
```
public ScriptREPL(Context context,
                  String language)
```
  - ScriptREPL
```
public ScriptREPL(Context context,
                  String language,
                  OutputStream out)
```
- Method Detail
  - getInterpretedLanguages
```
public List<ScriptLanguage> getInterpretedLanguages()
```
    Gets the list of languages compatible with the REPL.
    This list will match those given by ScriptService.getLanguages(), but filtered to exclude any who report true for ScriptLanguage.isCompiledLanguage().
  - getInterpreter
```
public ScriptInterpreter getInterpreter()
```
    Gets the script interpreter for the currently active language.
  - loop
```
public void loop()
          throws IOException
```
    Starts a Read-Eval-Print-Loop from the standard input stream, returning when the loop terminates.
    
    Throws:
    
    IOException
  - loop
```
public void loop(InputStream in)
          throws IOException
```
    Starts a Read-Eval-Print-Loop from the given input stream, returning when the loop terminates.
    
    Parameters:
    
    in - Input stream from which commands are read.
    
    Throws:
    
    IOException
  - initialize
```
public void initialize()
```
    Outputs a greeting, and sets up the initial language and variables of the REPL.
  - initialize
```
public void initialize(boolean verbose)
```
    Sets up the initial language and variables of the REPL.
    
    Parameters:
    
    verbose - Whether to output an initial greeting.
  - prompt
```
public void prompt()
```
    Outputs the prompt.
  - evaluate
```
public boolean evaluate(String line)
```
    Evaluates the line, including handling of special colon-prefixed REPL commands.
    
    Parameters:
    
    line - The line to evaluate.
    
    Returns:
    
    False iff the REPL should exit.
  - help
```
public void help()
```
    Prints a usage guide.
  - vars
```
public void vars()
```
    Lists variables in the script context.
  - lang
```
public void lang(String langName)
```
    Creates a new ScriptInterpreter to interpret statements, preserving existing variables from the previous interpreter.
    
    Parameters:
    
    langName - The script language of the new interpreter.
    
    Throws:
    
    IllegalArgumentException - if the requested language is not available.
  - lang
```
public void lang(ScriptLanguage language)
```
    Creates a new ScriptInterpreter to interpret statements, preserving existing variables from the previous interpreter.
    
    Parameters:
    
    language - The script language of the new interpreter.
  - langs
```
public void langs()
```
  - debug
```
public void debug()
```
  - main
```
public static void main(String... args)
                 throws Exception
```
    Throws:
    
    Exception

Class ScriptREPL

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ScriptREPL

ScriptREPL

ScriptREPL

ScriptREPL

Method Detail

getInterpretedLanguages

getInterpreter

loop

loop

initialize

initialize

prompt

evaluate

help

vars

lang

lang

langs

debug

main