feat: Regular Expression (re) Module Runtime Implementation

CHANGELOG.md

@@ -8,6 +8,26 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
+- **Regular Expression (re) Module Runtime Implementation** (Issue #30)
+  - Full runtime support using the `regex` crate
+  - Core functions: `re.compile()`, `re.search()`, `re.match()`, `re.fullmatch()`
+  - Multi-match functions: `re.findall()`, `re.finditer()`
+  - String manipulation: `re.split()`, `re.sub()`, `re.subn()`
+  - Utility functions: `re.escape()`, `re.purge()`
+  - **Match object support** with methods:
+    - `group()` - returns matched string
+    - `groups()` - returns tuple of captured groups
+    - `start()`, `end()` - match position indices
+    - `span()` - returns (start, end) tuple
+  - **Regex flags support**:
+    - `re.IGNORECASE` / `re.I` - case-insensitive matching
+    - `re.MULTILINE` / `re.M` - multi-line mode (^ and $ match line boundaries)
+    - `re.DOTALL` / `re.S` - dot matches newlines
+    - `re.VERBOSE` / `re.X` - verbose patterns with comments
+    - `re.ASCII` / `re.A` - ASCII-only matching
+    - `re.UNICODE` / `re.U` - Unicode matching (default)
+  - Compile-time pattern evaluation for constant string patterns
+
 - **Datetime Module Runtime Implementation** (Issue #32)
   - Full runtime support for `datetime` module with chrono backend
   - Constructors: `datetime.datetime()`, `datetime.date()`, `datetime.time()`, `datetime.timedelta()`

Cargo.toml

@@ -33,6 +33,7 @@ log = "0.4.29"
 serde = { version = "1.0.228", features = ["derive"], optional = true }
 serde_json = "1.0"
 chrono = "0.4"
+regex = "1.11"
 
 [lib]
 name = "waspy"

docs/modules.html

@@ -285,7 +285,7 @@ <h1 class="title">Waspy Development Board</h1>
                     { name: "math module (pi, e, tau, inf, nan, sqrt, sin, cos, tan, asin, acos, atan, atan2, sinh, cosh, tanh, exp, log, log10, log2, pow, floor, ceil, trunc, round, abs, fabs, copysign, fmod, remainder, degrees, radians, hypot, factorial, gcd, isnan, isinf, isfinite)", status: "done", version: "0.8.0" },
                     { name: "random module (random, randint, randrange, uniform, choice, shuffle, sample, seed, getrandbits, gauss, normalvariate, expovariate)", status: "done", version: "0.8.0" },
                     { name: "json module (loads, dumps, load, dump, JSONEncoder, JSONDecoder) - runtime implementation", status: "done", version: "unreleased" },
-                    { name: "re module (compile, search, match, fullmatch, findall, finditer, split, sub, subn, escape, purge, IGNORECASE, MULTILINE, DOTALL, VERBOSE, ASCII)", status: "done", version: "0.8.0" },
+                    { name: "re module (compile, search, match, fullmatch, findall, finditer, split, sub, subn, escape, purge, IGNORECASE, MULTILINE, DOTALL, VERBOSE, ASCII, UNICODE) - full runtime support with match objects", status: "done", version: "unreleased" },
                     { name: "datetime module (datetime, date, time, timedelta, timezone, tzinfo, now, today, fromtimestamp, fromisoformat, strftime, strptime, replace, timestamp, isoformat, weekday, isoweekday, MINYEAR, MAXYEAR) - full runtime support", status: "done", version: "unreleased" },
                     { name: "collections module (namedtuple, deque, Counter, OrderedDict, defaultdict, ChainMap, UserDict, UserList, UserString)", status: "done", version: "0.8.0" },
                     { name: "itertools module (count, cycle, repeat, chain, compress, dropwhile, filterfalse, groupby, islice, starmap, takewhile, tee, zip_longest, product, permutations, combinations, combinations_with_replacement, accumulate, batched, pairwise)", status: "done", version: "0.8.0" },