Pathological is a crazy new tool for searching your OS X Finder with extreme precision, using a simple and powerful query language called XPath.

XPath was originally designed as a query language for XML data. Surprisingly, the Finder shares much in common with XML data, and XPath turns out to be a natural way to search for files and folders on your Mac with unprecedented precision. Pathology is the fine-toothed-comb of search tools.

Pathological includes:

• A full-featured XPath query editor with syntax highlighting, and code auto-completion.
• Several syntax highlighting themes to choose from (in Preferences).
• Check 'Debug' to slowly proceed through the XPath expression step-by-step, and watch the filtered files and folders appear each step of the way.
• An interactive console with click-able error messages that lead you right to the syntax or runtime errors in your XPath query.
• Each Pathological window is a .pathological document that can be edited, saved and re-opened later.
• A query results table contains details on the selected files and folders. Double-clicking on a result item reveals it in the Finder.

Pathological's XPath-based query language includes many extension functions designed specifically for searching the OS X Finder, for example:

• modified() – get the modification date of a file or folder.
• created() – get the creation date of a file or folder.
• kilobytes() – get the number of KB in a file or folder.
• megabytes() – get the number of MB in a file or folder.
• permissions() – get the POSIX permissions of a file or folder (e.g. 0644).
• owner() – get the username of the owner of a file or folder.
• matches() and replace() – filter using regular expressions.

And many more!

Pathological's XPath engine is powered by Panthro, an open-source implementation of XPath 3.0 in Objective-C that includes the ability to debug the evaluation of an XPath expression step-by-step.

Pathological is written entirely in Cocoa/Objective-C so it feels right at home on your Mac.

Code completion with Fuzzy Matching

Debug expressions step-by-step

Function argument Tab Triggers

Query results table

Interactive Console with Error messages