====== dbw_tb - A toolbox for Lua ======

====== Glob Matching in C++ with `<regex>` ======

This library provides a **flexible glob matching** solution in C++ using the `<regex>` library. It supports:

  * **Case-insensitive matching**
  * **Character classes** (`[a-z]`, `[!0-9]`)
  * **Recursive globbing** (`**`)
  * **Extended globbing** (`|`, `()`)
  * **Brace expansion** (`{a,b}.txt`)

===== Features =====

  * **Case-Insensitive Matching**:
    - The `(?i)` flag is prepended to the regex to enable case-insensitive matching.
    - Example: `*.txt` matches `file.txt`, `FILE.TXT`, and `File.TxT`.

  * **Character Classes**:
    - Supports `[a-z]`, `[A-Z]`, `[0-9]`, `[!0-9]` (negation), and `[abc]` (explicit set).
    - Example: `[a-z][0-9].txt` matches `a1.txt` but not `1.txt`.

  * **Recursive Globbing (`**`)**:
    - `**` is converted to `.*` in regex, allowing it to match any number of subdirectories.
    - Example: `**/file.txt` matches `file.txt`, `dir/file.txt`, and `dir/subdir/file.txt`.

  * **Extended Globbing (`|` and `()`)**:
    - Supports `@(pattern1|pattern2)` for OR logic.
    - Example: `file@(A|B).txt` matches `fileA.txt` and `fileB.txt`.

  * **Brace Expansion**:
    - Supports `{a,b}.txt` to match `a.txt` or `b.txt`.
    - Example: `{a,b}.txt` matches `a.txt` and `b.txt` but not `ab.txt`.