Package com.owenfeehan.pathpatternfinder

Class PathPatternFinder

Object

com.owenfeehan.pathpatternfinder.PathPatternFinder

public class PathPatternFinder
extends Object

Finds a pattern in a list of paths via a set of rules.

The rules are (in order):

1. finds any common file-path roots
2. then treats the remaining file-paths as a list of strings with / or \ as directory seperators (OS dependent)
3. repeat until no more operations possible
   1. from the left:
      1. looks for maximum-constant strings
      2. looks for maximally-sized integer patterns
      3. looks for any variable strings, which are ended by constant character always at the same index
   2. do the same from the right
4. if there is a remaining "unmatched" strings, consider splitting by special characters _ or - or ( or ) into tokens
5. apply step 3 to each of the split tokens

Author:

Owen Feehan

Constructor Summary

Constructors

Constructor	Description
PathPatternFinder()

Method Summary

Modifier and Type	Method	Description
static Pattern	findPatternPaths(List<Path> paths, IOCase ioCase, boolean avoidExtensionSplit)	Finds the pattern in a list of paths, using rules outlined above.
static Pattern	findPatternStrings(List<String> strings, IOCase ioCase)	Finds the pattern in a list of strings, using rules outlined above (from Step 3 onwards).
static void	main(String[] args)	Derives a pattern from the paths passed as command-line arguments.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PathPatternFinder

public PathPatternFinder()

Method Details

findPatternPaths

public static Pattern findPatternPaths(List<Path> paths, IOCase ioCase, boolean avoidExtensionSplit)

Finds the pattern in a list of paths, using rules outlined above.

Parameters:

paths - a list of paths to match against

ioCase - how to treat the case in paths

avoidExtensionSplit - if true, splits will be avoided in file extensions in the paths (defined as anything after the right-most period)

Returns:

the pattern-found

findPatternStrings

public static Pattern findPatternStrings(List<String> strings, IOCase ioCase)

Finds the pattern in a list of strings, using rules outlined above (from Step 3 onwards).

Parameters:

strings - a list of strings to match against

ioCase - how to treat the case in paths

Returns:

the pattern-found

main

public static void main(String[] args)

Derives a pattern from the paths passed as command-line arguments.

1. Accepts a globs or file/directory paths as command-line arguments
2. Derives a list of paths from these parameters
3. Derives a pattern from the list of paths

Parameters:

args - command-line arguments