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Packs (add-ons) for SWI-Prolog

Package "files_extras"

Title:Few extra predicates for traversing folders and simplifying work with file system
Rating:Not rated. Create the first rating!
Latest version:0.1.0
SHA1 sum:f7a4eb6da1e19eb58edf3747348243d3640040aa
Author:Milan Unger http://milung.eu/
Home page:https://github.com/milung/files_extra.git

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Details by download location

VersionSHA1#DownloadsURL
0.1.0b8aa748b7284976e9da5d88d4e0c179fec3c08002https://github.com/milung/file_extras.git
f7a4eb6da1e19eb58edf3747348243d3640040aa2https://github.com/milung/file_extras.git

Execution Context

Prolog module for simplifying some common operation on the file system (e.g. traversing folder structure)

USAGE

Exported predicates from the module file_extras

`apply_directory_tree(:Goal, +RootDirectory:atom)` is det

Calls call(Goal, Arg) for each file or sub-directory in the RootDirectory tree, recursively. The scan is the depth-first.

The argument Arg is one of

  • directory(Directory, Path) where Directory is name of the directory without the path and Path is path (from RootDirectory) to the directory itself, including the Directory name. If the Goal fails then the complete content of the directory is skipped.
  • file(File, Path) where File is name of the file without the path and Path is path (from RootDirectory) to the file itself, including the File name. The success or failure of the Goal is ignored.

`fold_directory_tree(:Goal, +RootDirectory:atom, +State0, -StateFinal)` is det

Calls call(Goal, Arg, StatePrev, StateNext) for each file or sub-directory in the RootDirectory tree, recursively. The scan is the depth-first.

The argument Arg is one of

  • directory(Directory, Path) where Directory is name of the directory without the path and Path is path (from RootDirectory) to the directory itself, including the Directory name. If the Goal fails then the complete content of the directory is skipped.
  • file(File, Path) where File is name of the file without the path and Path is path (from RootDirectory) to the file itself, including the File name. The success or failure of the Goal is ignored.

    The State0 is initial state and StateFinal is accumulated stated after scanning all directories and files for which the Goal succeeded. Files in directories where Goal failed for the directory level are skipped.

path_to_posix(+Path:atom, -Posix:atom) is det

Succeeds if Posix unifies with Path, given that backslashes in Path are replaced by forward slashes in Posix. Utility for windows paths, seems like multiple built-in predicates are sensitive to it.

Development

To debug the module, load the debug.pl file into prolog top.

Contents of pack "files_extras"

Pack contains 4 files holding a total of 6.4K bytes.