PrologImplementationPeer (InterProlog Java Bridge)

java.lang.Object
- com.declarativa.interprolog.PrologImplementationPeer

Direct Known Subclasses:

GNUPeer, SWIPeer, XSBPeer, YAPPeer
```
public abstract class PrologImplementationPeer
extends Object
```
Centers most of the Prolog implementation-dependent information

Field Summary

Fields
Modifier and Type Field and Description

static String REGULAR_PROMPT

Fields
Modifier and Type	Field and Description
`static String`	`REGULAR_PROMPT`

Constructor Summary

Constructors
Constructor and Description
`PrologImplementationPeer()` Variant to support only the partial functionality which does not depend on the existence of an engine
`PrologImplementationPeer(AbstractPrologEngine engine)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`abstract String[]`	`alternativePrologExtensions(String filename)`
`String`	`executablePath(Properties p)`
`abstract String`	`executablePath(String binDirectory)`
`abstract String`	`getBinDirectoryEnvVar()`
`String`	`getBinDirectoryProperty(Properties p)`
`PrologOperatorsContext`	`getOperators()`
`String`	`getPrologNumericVersion()`
`String`	`getPrologVersion()`
`boolean`	`hasPrologExtension(String filename)`
`abstract String`	`interprologFilename()` Returns the path for the Prolog file that must be loaded for InterProlog to function, USING '/' AS THE SEPARATION CHARACTER independently of the OS platform
`abstract boolean`	`isInterrupt(Object resultError)` True if an error, as obtained in a ResultFromProlog object, looks like an interrupt detection on the Prolog side, cf.
`abstract Recognizer`	`makeBreakRecognizer()`
`abstract Recognizer`	`makePromptRecognizer()`
`abstract String`	`prologBinToBaseDirectory(String binDirectoryOrStartCommand)`
`String`	`unescapedFilePath(String p)` Some Prologs use '\' as an escape character in atoms, which can affect file paths under Windows.
`abstract String`	`visualizationFilename()` Returns the path for the Prolog file that must be loaded for InterProlog's visualization predicates to function, typically in the context of using a ListenerWindow.

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

- Field Detail
  - REGULAR_PROMPT
```
public static String REGULAR_PROMPT
```
- Constructor Detail
  - PrologImplementationPeer
```
public PrologImplementationPeer()
```
    Variant to support only the partial functionality which does not depend on the existence of an engine
  - PrologImplementationPeer
```
public PrologImplementationPeer(AbstractPrologEngine engine)
```
- Method Detail
  - getBinDirectoryProperty
```
public String getBinDirectoryProperty(Properties p)
```
  - getBinDirectoryEnvVar
```
public abstract String getBinDirectoryEnvVar()
```
  - executablePath
```
public abstract String executablePath(String binDirectory)
```
  - getPrologVersion
```
public String getPrologVersion()
```
  - getPrologNumericVersion
```
public String getPrologNumericVersion()
```
  - alternativePrologExtensions
```
public abstract String[] alternativePrologExtensions(String filename)
```
  - hasPrologExtension
```
public boolean hasPrologExtension(String filename)
```
  - prologBinToBaseDirectory
```
public abstract String prologBinToBaseDirectory(String binDirectoryOrStartCommand)
```
  - makePromptRecognizer
```
public abstract Recognizer makePromptRecognizer()
```
  - makeBreakRecognizer
```
public abstract Recognizer makeBreakRecognizer()
```
  - isInterrupt
```
public abstract boolean isInterrupt(Object resultError)
```
    True if an error, as obtained in a ResultFromProlog object, looks like an interrupt detection on the Prolog side, cf. predicate handleDeterministicGoal in interprolog.P/pl/etc. resultError is not null
  - interprologFilename
```
public abstract String interprologFilename()
```
    Returns the path for the Prolog file that must be loaded for InterProlog to function, USING '/' AS THE SEPARATION CHARACTER independently of the OS platform
  - visualizationFilename
```
public abstract String visualizationFilename()
```
    Returns the path for the Prolog file that must be loaded for InterProlog's visualization predicates to function, typically in the context of using a ListenerWindow. Although the file is common for all Prologs, some (eg XSB) have a compiled form, others do not
  - executablePath
```
public String executablePath(Properties p)
```
  - unescapedFilePath
```
public String unescapedFilePath(String p)
```
    Some Prologs use '\' as an escape character in atoms, which can affect file paths under Windows. Use this method to preprocess all file paths passed to Prolog. this default implementation does no preprocessing, subclasses should define their own if needed
  - getOperators
```
public PrologOperatorsContext getOperators()
```

Class PrologImplementationPeer

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

REGULAR_PROMPT

Constructor Detail

PrologImplementationPeer

PrologImplementationPeer

Method Detail

getBinDirectoryProperty

getBinDirectoryEnvVar

executablePath

getPrologVersion

getPrologNumericVersion

alternativePrologExtensions

hasPrologExtension

prologBinToBaseDirectory

makePromptRecognizer

makeBreakRecognizer

isInterrupt

interprologFilename

visualizationFilename

executablePath

unescapedFilePath

getOperators