Cython routing added

.gitea/workflows/release.yaml

@@ -22,6 +22,11 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libpcre2-dev
+
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
@@ -45,6 +50,9 @@ jobs:
         if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
         run: poetry install --with dev
 
+      - name: Build Cython extensions
+        run: poetry run python scripts/build_cython.py build_ext --inplace
+
       - name: Build package
         run: |
           poetry build

.gitea/workflows/test.yaml

@@ -17,6 +17,11 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libpcre2-dev
+
       - name: Setup Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
@@ -40,6 +45,9 @@ jobs:
         if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
         run: poetry install --with dev
 
+      - name: Build Cython extensions
+        run: poetry run python scripts/build_cython.py build_ext --inplace
+
       - name: Run tests
         run: poetry run pytest tests/ -v
 

benchmarks/bench_routing.py

@@ -0,0 +1,153 @@
+#!/usr/bin/env python3
+"""
+Benchmark script for routing performance comparison.
+
+Compares:
+- Pure Python implementation with standard re (_routing_py)
+- Cython implementation with PCRE2 JIT (_routing)
+
+Usage:
+    python benchmarks/bench_routing.py
+"""
+
+import re
+import time
+import statistics
+from typing import Callable, Tuple
+
+from pyserve._routing_py import (
+    FastRouter as PyFastRouter,
+    FastRouteMatch as PyFastRouteMatch,
+)
+
+try:
+    from pyserve._routing import (
+        FastRouter as CyFastRouter,
+        FastRouteMatch as CyFastRouteMatch,
+    )
+    CYTHON_AVAILABLE = True
+except ImportError:
+    CYTHON_AVAILABLE = False
+    print("Cython module not compiled. Run: poetry run python scripts/build_cython.py\n")
+
+
+def benchmark(func: Callable, iterations: int = 100000) -> Tuple[float, float]:
+    """Benchmark a function and return mean/stdev in nanoseconds."""
+    times = []
+    
+    # Warmup
+    for _ in range(1000):
+        func()
+    
+    # Actual benchmark
+    for _ in range(iterations):
+        start = time.perf_counter_ns()
+        func()
+        end = time.perf_counter_ns()
+        times.append(end - start)
+    
+    return statistics.mean(times), statistics.stdev(times)
+
+
+def format_time(ns: float) -> str:
+    """Format time in nanoseconds to human readable format."""
+    if ns < 1000:
+        return f"{ns:.1f} ns"
+    elif ns < 1_000_000:
+        return f"{ns/1000:.2f} µs"
+    else:
+        return f"{ns/1_000_000:.2f} ms"
+
+
+def setup_router(router_class):
+    """Setup a router with typical routes."""
+    router = router_class()
+    
+    # Exact routes
+    router.add_route("=/health", {"return": "200 OK"})
+    router.add_route("=/api/status", {"return": "200 OK"})
+    router.add_route("=/favicon.ico", {"return": "204"})
+    
+    # Regex routes
+    router.add_route("~^/api/v1/users/(?P<user_id>\\d+)$", {"proxy_pass": "http://users-service"})
+    router.add_route("~^/api/v1/posts/(?P<post_id>\\d+)$", {"proxy_pass": "http://posts-service"})
+    router.add_route("~\\.(css|js|png|jpg|gif|svg|woff2?)$", {"root": "./static"})
+    router.add_route("~^/api/", {"proxy_pass": "http://api-gateway"})
+    
+    # Default route
+    router.add_route("__default__", {"spa_fallback": True, "root": "./dist"})
+    
+    return router
+
+
+def run_benchmarks():
+    print("=" * 70)
+    print("ROUTING BENCHMARK")
+    print("=" * 70)
+    print()
+    
+    # Test paths with different matching scenarios
+    test_cases = [
+        ("/health", "Exact match (first)"),
+        ("/api/status", "Exact match (middle)"),
+        ("/api/v1/users/12345", "Regex match with groups"),
+        ("/static/app.js", "Regex match (file extension)"),
+        ("/api/v2/other", "Regex match (simple prefix)"),
+        ("/some/random/path", "Default route (fallback)"),
+        ("/nonexistent", "Default route (fallback)"),
+    ]
+    
+    iterations = 100000
+    
+    print(f"Iterations: {iterations:,}")
+    print()
+    
+    # Setup routers
+    py_router = setup_router(PyFastRouter)
+    cy_router = setup_router(CyFastRouter) if CYTHON_AVAILABLE else None
+    
+    results = {}
+    
+    for path, description in test_cases:
+        print(f"Path: {path}")
+        print(f"  {description}")
+        
+        # Python implementation (standard re)
+        py_mean, py_std = benchmark(lambda p=path: py_router.match(p), iterations)
+        results[(path, "Python (re)")] = py_mean
+        print(f"    Python (re):     {format_time(py_mean):>12} ± {format_time(py_std)}")
+        
+        # Cython implementation (PCRE2 JIT)
+        if CYTHON_AVAILABLE and cy_router:
+            cy_mean, cy_std = benchmark(lambda p=path: cy_router.match(p), iterations)
+            results[(path, "Cython (PCRE2)")] = cy_mean
+            speedup = py_mean / cy_mean if cy_mean > 0 else 0
+            print(f"    Cython (PCRE2):  {format_time(cy_mean):>12} ± {format_time(cy_std)}  ({speedup:.2f}x faster)")
+        
+        print()
+    
+    # Summary
+    if CYTHON_AVAILABLE:
+        print("=" * 70)
+        print("SUMMARY")
+        print("=" * 70)
+        
+        py_total = sum(v for k, v in results.items() if k[1] == "Python (re)")
+        cy_total = sum(v for k, v in results.items() if k[1] == "Cython (PCRE2)")
+        
+        print(f"  Python (re) total:     {format_time(py_total)}")
+        print(f"  Cython (PCRE2) total:  {format_time(cy_total)}")
+        print(f"  Overall speedup: {py_total / cy_total:.2f}x")
+        
+        # Show JIT compilation status
+        print()
+        print("PCRE2 JIT Status:")
+        for route in cy_router.list_routes(): # type: ignore False linter error
+            if route["type"] == "regex":
+                jit = route.get("jit_compiled", False)
+                status = "✓ JIT" if jit else "✗ No JIT"
+                print(f"  {status}: {route['pattern']}")
+
+
+if __name__ == "__main__":
+    run_benchmarks()

poetry.lock

@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.1.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.1.3 and should not be changed by hand.
 
 [[package]]
 name = "a2wsgi"
@@ -1720,5 +1720,5 @@ wsgi = ["a2wsgi"]
 
 [metadata]
 lock-version = "2.1"
-python-versions = ">=3.12"
-content-hash = "653d7b992e2bb133abde2e8b1c44265e948ed90487ab3f2670429510a8aa0683"
+python-versions = ">=3.12, <=3.13.7"
+content-hash = "411b746f1a577ed635af9fd3e01daf1fa03950d27ef23888fc7cdd0b99762404"

pyserve/_routing.pyx

@@ -0,0 +1,486 @@
+# cython: language_level=3
+# cython: boundscheck=False
+# cython: wraparound=False
+# cython: cdivision=True
+from libc.stdint cimport uint32_t
+from libc.stddef cimport size_t
+from cpython.bytes cimport PyBytes_AsString, PyBytes_GET_SIZE
+
+cimport cython
+from ._routing_pcre2 cimport *
+
+from typing import Optional
+
+# Type aliases for cleaner NULL casts
+ctypedef pcre2_compile_context* compile_ctx_ptr
+ctypedef pcre2_match_context* match_ctx_ptr
+ctypedef pcre2_general_context* general_ctx_ptr
+
+
+# Buffer size for error messages
+DEF ERROR_BUFFER_SIZE = 256
+
+# Maximum capture groups we support
+DEF MAX_CAPTURE_GROUPS = 32
+
+
+cdef class PCRE2Pattern:
+    cdef:
+        pcre2_code* _code
+        pcre2_match_data* _match_data
+        bint _jit_available
+        str _pattern_str
+        uint32_t _capture_count
+        dict _name_to_index  # Named capture groups
+        list _index_to_name  # Index to name mapping
+    
+    def __cinit__(self):
+        self._code = NULL
+        self._match_data = NULL
+        self._jit_available = <bint>False
+        self._capture_count = 0
+        self._name_to_index = {}
+        self._index_to_name = []
+    
+    def __dealloc__(self):
+        if self._match_data is not NULL:
+            pcre2_match_data_free(self._match_data)
+            self._match_data = NULL
+        if self._code is not NULL:
+            pcre2_code_free(self._code)
+            self._code = NULL
+    
+    @staticmethod
+    cdef PCRE2Pattern _create(str pattern, bint case_insensitive=<bint>False, bint use_jit=<bint>True):
+        cdef:
+            PCRE2Pattern self = PCRE2Pattern.__new__(PCRE2Pattern)
+            bytes pattern_bytes
+            const char* pattern_ptr
+            Py_ssize_t pattern_len
+            uint32_t options = 0
+            int errorcode = 0
+            PCRE2_SIZE erroroffset = 0
+            int jit_result
+            uint32_t capture_count = 0
+        
+        self._pattern_str = pattern
+        self._name_to_index = {}
+        self._index_to_name = []
+        
+        pattern_bytes = pattern.encode('utf-8')
+        pattern_ptr = PyBytes_AsString(pattern_bytes)
+        pattern_len = PyBytes_GET_SIZE(pattern_bytes)
+        
+        options = PCRE2_UTF | PCRE2_UCP
+        if case_insensitive:
+            options |= PCRE2_CASELESS
+        
+        self._code = pcre2_compile(
+            <PCRE2_SPTR>pattern_ptr,
+            <PCRE2_SIZE>pattern_len,
+            options,
+            &errorcode,
+            &erroroffset,
+            <compile_ctx_ptr>NULL
+        )
+        
+        if self._code is NULL:
+            error_msg = PCRE2Pattern._get_error_message(errorcode)
+            raise ValueError(f"PCRE2 compile error at offset {erroroffset}: {error_msg}")
+        
+        if use_jit:
+            jit_result = pcre2_jit_compile(self._code, PCRE2_JIT_COMPLETE)
+            self._jit_available = <bint>(jit_result == 0)
+        
+        pcre2_pattern_info(self._code, PCRE2_INFO_CAPTURECOUNT, <void*>&capture_count)
+        self._capture_count = capture_count
+        
+        self._match_data = pcre2_match_data_create_from_pattern(self._code, <general_ctx_ptr>NULL)
+        if self._match_data is NULL:
+            pcre2_code_free(self._code)
+            self._code = NULL
+            raise MemoryError("Failed to create match data")
+        
+        self._extract_named_groups()
+        
+        return self
+    
+    cdef void _extract_named_groups(self):
+        cdef:
+            uint32_t namecount = 0
+            uint32_t nameentrysize = 0
+            PCRE2_SPTR nametable
+            uint32_t i
+            int group_num
+            bytes name_bytes
+            str name
+        
+        pcre2_pattern_info(self._code, PCRE2_INFO_NAMECOUNT, <void*>&namecount)
+        
+        if namecount == 0:
+            return  # void return
+        
+        pcre2_pattern_info(self._code, PCRE2_INFO_NAMEENTRYSIZE, <void*>&nameentrysize)
+        pcre2_pattern_info(self._code, PCRE2_INFO_NAMETABLE, <void*>&nametable)
+        
+        self._index_to_name = [None] * (self._capture_count + 1)
+        
+        for i in range(namecount):
+            group_num = (<int>nametable[0] << 8) | <int>nametable[1]
+            name_bytes = <bytes>(nametable + 2)
+            name = name_bytes.decode('utf-8')
+            
+            self._name_to_index[name] = group_num
+            if <uint32_t>group_num <= self._capture_count:
+                self._index_to_name[<Py_ssize_t>group_num] = name
+            
+            nametable += nameentrysize
+    
+    @staticmethod
+    cdef str _get_error_message(int errorcode):
+        cdef:
+            PCRE2_UCHAR buffer[ERROR_BUFFER_SIZE]
+            int result
+        
+        result = pcre2_get_error_message(errorcode, buffer, ERROR_BUFFER_SIZE)
+        if result < 0:
+            return f"Unknown error {errorcode}"
+        return (<bytes>buffer).decode('utf-8')
+    
+    cpdef bint search(self, str subject):
+        """
+        Search for pattern anywhere in subject.
+        Returns True if found, False otherwise.
+        """
+        cdef:
+            bytes subject_bytes
+            const char* subject_ptr
+            Py_ssize_t subject_len
+            int result
+        
+        if self._code is NULL:
+            return <bint>False
+        
+        subject_bytes = subject.encode('utf-8')
+        subject_ptr = PyBytes_AsString(subject_bytes)
+        subject_len = PyBytes_GET_SIZE(subject_bytes)
+        
+        if self._jit_available:
+            result = pcre2_jit_match(
+                self._code,
+                <PCRE2_SPTR>subject_ptr,
+                <PCRE2_SIZE>subject_len,
+                0,  # start offset
+                0,  # options
+                self._match_data,
+                <match_ctx_ptr>NULL
+            )
+        else:
+            result = pcre2_match(
+                self._code,
+                <PCRE2_SPTR>subject_ptr,
+                <PCRE2_SIZE>subject_len,
+                0,
+                0,
+                self._match_data,
+                <match_ctx_ptr>NULL
+            )
+        
+        return <bint>(result >= 0)
+    
+    cpdef dict groupdict(self, str subject):
+        """
+        Match pattern and return dict of named groups.
+        Returns empty dict if no match or no named groups.
+        """
+        cdef:
+            bytes subject_bytes
+            const char* subject_ptr
+            Py_ssize_t subject_len
+            int result
+            PCRE2_SIZE* ovector
+            dict groups = {}
+            str name
+            int index
+            PCRE2_SIZE start, end
+        
+        if self._code is NULL or not self._name_to_index:
+            return groups
+        
+        subject_bytes = subject.encode('utf-8')
+        subject_ptr = PyBytes_AsString(subject_bytes)
+        subject_len = PyBytes_GET_SIZE(subject_bytes)
+        
+        if self._jit_available:
+            result = pcre2_jit_match(
+                self._code,
+                <PCRE2_SPTR>subject_ptr,
+                <PCRE2_SIZE>subject_len,
+                0, 0,
+                self._match_data,
+                <match_ctx_ptr>NULL
+            )
+        else:
+            result = pcre2_match(
+                self._code,
+                <PCRE2_SPTR>subject_ptr,
+                <PCRE2_SIZE>subject_len,
+                0, 0,
+                self._match_data,
+                <match_ctx_ptr>NULL
+            )
+        
+        if result < 0:
+            return groups
+        
+        ovector = pcre2_get_ovector_pointer(self._match_data)
+        
+        for name, index in self._name_to_index.items():
+            start = ovector[<Py_ssize_t>(2 * index)]
+            end = ovector[<Py_ssize_t>(2 * index + 1)]
+            if start != PCRE2_UNSET and end != PCRE2_UNSET:
+                groups[name] = subject_bytes[start:end].decode('utf-8')
+            else:
+                groups[name] = None
+        
+        return groups
+    
+    cpdef tuple search_with_groups(self, str subject):
+        cdef:
+            bytes subject_bytes
+            const char* subject_ptr
+            Py_ssize_t subject_len
+            int result
+            PCRE2_SIZE* ovector
+            dict groups = {}
+            str name
+            int index
+            PCRE2_SIZE start, end
+        
+        if self._code is NULL:
+            return (False, {})
+        
+        subject_bytes = subject.encode('utf-8')
+        subject_ptr = PyBytes_AsString(subject_bytes)
+        subject_len = PyBytes_GET_SIZE(subject_bytes)
+        
+        if self._jit_available:
+            result = pcre2_jit_match(
+                self._code,
+                <PCRE2_SPTR>subject_ptr,
+                <PCRE2_SIZE>subject_len,
+                0, 0,
+                self._match_data,
+                <match_ctx_ptr>NULL
+            )
+        else:
+            result = pcre2_match(
+                self._code,
+                <PCRE2_SPTR>subject_ptr,
+                <PCRE2_SIZE>subject_len,
+                0, 0,
+                self._match_data,
+                <match_ctx_ptr>NULL
+            )
+        
+        if result < 0:
+            return (False, {})
+        
+        if self._name_to_index:
+            ovector = pcre2_get_ovector_pointer(self._match_data)
+            for name, index in self._name_to_index.items():
+                start = ovector[<Py_ssize_t>(2 * index)]
+                end = ovector[<Py_ssize_t>(2 * index + 1)]
+                if start != PCRE2_UNSET and end != PCRE2_UNSET:
+                    groups[name] = subject_bytes[start:end].decode('utf-8')
+                else:
+                    groups[name] = None
+        
+        return (True, groups)
+    
+    @property
+    def pattern(self) -> str:
+        return self._pattern_str
+    
+    @property
+    def jit_compiled(self) -> bool:
+        return <bint>self._jit_available
+    
+    @property
+    def capture_count(self) -> int:
+        return self._capture_count
+
+
+cdef class FastRouteMatch:
+    cdef:
+        public dict config
+        public dict params
+    
+    def __cinit__(self):
+        self.config = {}
+        self.params = {}
+    
+    def __init__(self, dict config, params=None):
+        self.config = config
+        self.params = params if params is not None else {}
+
+
+cdef class FastRouter:
+    """
+    High-performance router with PCRE2 JIT-compiled patterns.
+    
+    Matching order (nginx-like):
+    1. Exact routes (prefix "=") - O(1) dict lookup
+    2. Regex routes (prefix "~" or "~*") - PCRE2 JIT matching
+    3. Default route (fallback)
+    """
+    cdef:
+        dict _exact_routes
+        list _regex_routes
+        dict _default_route
+        bint _has_default
+        int _regex_count
+    
+    def __cinit__(self):
+        self._exact_routes = {}
+        self._regex_routes = []
+        self._default_route = {}
+        self._has_default = <bint>False
+        self._regex_count = 0
+    
+    def __init__(self):
+        self._exact_routes = {}
+        self._regex_routes = []
+        self._default_route = {}
+        self._has_default = <bint>False
+        self._regex_count = 0
+    
+    def add_route(self, str pattern, dict config):
+        cdef:
+            str exact_path
+            str regex_pattern
+            bint case_insensitive
+            PCRE2Pattern compiled_pattern
+        
+        if pattern.startswith("="):
+            exact_path = pattern[1:]
+            self._exact_routes[exact_path] = config
+        
+        elif pattern == "__default__":
+            self._default_route = config
+            self._has_default = <bint>True
+        
+        elif pattern.startswith("~"):
+            case_insensitive = <bint>pattern.startswith("~*")
+            regex_pattern = pattern[2:] if case_insensitive else pattern[1:]
+            
+            try:
+                compiled_pattern = PCRE2Pattern._create(regex_pattern, case_insensitive)
+                self._regex_routes.append((compiled_pattern, config))
+                self._regex_count = len(self._regex_routes)
+            except (ValueError, MemoryError):
+                pass  # Skip invalid patterns
+    
+    cpdef object match(self, str path):
+        cdef:
+            dict config
+            dict params
+            int i
+            PCRE2Pattern pattern
+            tuple route_entry
+            bint matched
+        
+        if path in self._exact_routes:
+            config = self._exact_routes[path]
+            return FastRouteMatch(config, {})
+        
+        for i in range(self._regex_count):
+            route_entry = <tuple>self._regex_routes[i]
+            pattern = <PCRE2Pattern>route_entry[0]
+            config = <dict>route_entry[1]
+            
+            matched, params = pattern.search_with_groups(path)
+            if matched:
+                return FastRouteMatch(config, params)
+        
+        if self._has_default:
+            return FastRouteMatch(self._default_route, {})
+        
+        return None
+    
+    @property
+    def exact_routes(self) -> dict:
+        return self._exact_routes
+    
+    @property
+    def routes(self) -> dict:
+        """Return regex routes as dict (pattern_str -> config)."""
+        cdef:
+            dict result = {}
+            PCRE2Pattern pattern
+        for pattern, config in self._regex_routes:
+            result[pattern.pattern] = config
+        return result
+    
+    @property
+    def default_route(self) -> Optional[dict]:
+        return self._default_route if self._has_default else None
+    
+    cpdef list list_routes(self):
+        cdef:
+            list result = []
+            str path_str
+            dict config
+            PCRE2Pattern pattern
+        
+        for path_str, config in self._exact_routes.items():
+            result.append({
+                "type": "exact",
+                "pattern": f"={path_str}",
+                "config": config,
+            })
+        
+        for pattern, config in self._regex_routes:
+            result.append({
+                "type": "regex",
+                "pattern": pattern.pattern,
+                "jit_compiled": pattern.jit_compiled,
+                "config": config,
+            })
+        
+        if self._has_default:
+            result.append({
+                "type": "default",
+                "pattern": "__default__",
+                "config": self._default_route,
+            })
+        
+        return result
+
+
+def compile_pattern(str pattern, bint case_insensitive=<bint>False) -> PCRE2Pattern:
+    """
+    Compile a PCRE2 pattern with JIT support.
+    
+    Args:
+        pattern: Regular expression pattern
+        case_insensitive: Whether to match case-insensitively
+    
+    Returns:
+        Compiled PCRE2Pattern object
+    """
+    return PCRE2Pattern._create(pattern, case_insensitive)
+
+
+def fast_match(router: FastRouter, str path):
+    """
+    Convenience function for matching a path.
+    
+    Args:
+        router: FastRouter instance
+        path: URL path to match
+    
+    Returns:
+        FastRouteMatch or None
+    """
+    return router.match(path)

pyserve/_routing_pcre2.pxd

@@ -0,0 +1,208 @@
+# cython: language_level=3
+
+from libc.stdint cimport uint8_t, uint32_t, int32_t
+from libc.stddef cimport size_t
+
+cdef extern from "pcre2.h":
+    pass
+
+cdef extern from *:
+    ctypedef struct pcre2_code_8:
+        pass
+    ctypedef pcre2_code_8 pcre2_code
+    
+    ctypedef struct pcre2_match_data_8:
+        pass
+    ctypedef pcre2_match_data_8 pcre2_match_data
+    
+    ctypedef struct pcre2_compile_context_8:
+        pass
+    ctypedef pcre2_compile_context_8 pcre2_compile_context
+    
+    ctypedef struct pcre2_match_context_8:
+        pass
+    ctypedef pcre2_match_context_8 pcre2_match_context
+    
+    ctypedef struct pcre2_general_context_8:
+        pass
+    ctypedef pcre2_general_context_8 pcre2_general_context
+    
+    ctypedef uint8_t PCRE2_UCHAR
+    ctypedef const uint8_t* PCRE2_SPTR
+    ctypedef size_t PCRE2_SIZE
+    
+    uint32_t PCRE2_CASELESS
+    uint32_t PCRE2_MULTILINE
+    uint32_t PCRE2_DOTALL
+    uint32_t PCRE2_UTF
+    uint32_t PCRE2_UCP
+    uint32_t PCRE2_NO_UTF_CHECK
+    uint32_t PCRE2_ANCHORED
+    uint32_t PCRE2_ENDANCHORED
+    
+    uint32_t PCRE2_JIT_COMPLETE
+    uint32_t PCRE2_JIT_PARTIAL_SOFT
+    uint32_t PCRE2_JIT_PARTIAL_HARD
+    
+    int PCRE2_ERROR_NOMATCH
+    int PCRE2_ERROR_PARTIAL
+    int PCRE2_ERROR_JIT_STACKLIMIT
+    
+    PCRE2_SIZE PCRE2_UNSET
+    PCRE2_SIZE PCRE2_ZERO_TERMINATED
+    
+    pcre2_code* pcre2_compile_8(
+        PCRE2_SPTR pattern,
+        PCRE2_SIZE length,
+        uint32_t options,
+        int* errorcode,
+        PCRE2_SIZE* erroroffset,
+        pcre2_compile_context* ccontext
+    )
+    
+    void pcre2_code_free_8(pcre2_code* code)
+    
+    int pcre2_jit_compile_8(pcre2_code* code, uint32_t options)
+    
+    pcre2_match_data* pcre2_match_data_create_from_pattern_8(
+        const pcre2_code* code,
+        pcre2_general_context* gcontext
+    )
+    
+    pcre2_match_data* pcre2_match_data_create_8(
+        uint32_t ovecsize,
+        pcre2_general_context* gcontext
+    )
+    
+    void pcre2_match_data_free_8(pcre2_match_data* match_data)
+    
+    int pcre2_match_8(
+        const pcre2_code* code,
+        PCRE2_SPTR subject,
+        PCRE2_SIZE length,
+        PCRE2_SIZE startoffset,
+        uint32_t options,
+        pcre2_match_data* match_data,
+        pcre2_match_context* mcontext
+    )
+    
+    int pcre2_jit_match_8(
+        const pcre2_code* code,
+        PCRE2_SPTR subject,
+        PCRE2_SIZE length,
+        PCRE2_SIZE startoffset,
+        uint32_t options,
+        pcre2_match_data* match_data,
+        pcre2_match_context* mcontext
+    )
+    
+    PCRE2_SIZE* pcre2_get_ovector_pointer_8(pcre2_match_data* match_data)
+    uint32_t pcre2_get_ovector_count_8(pcre2_match_data* match_data)
+    
+    int pcre2_pattern_info_8(
+        const pcre2_code* code,
+        uint32_t what,
+        void* where
+    )
+    
+    uint32_t PCRE2_INFO_CAPTURECOUNT
+    uint32_t PCRE2_INFO_NAMECOUNT
+    uint32_t PCRE2_INFO_NAMETABLE
+    uint32_t PCRE2_INFO_NAMEENTRYSIZE
+    uint32_t PCRE2_INFO_JITSIZE
+    
+    int pcre2_get_error_message_8(
+        int errorcode,
+        PCRE2_UCHAR* buffer,
+        PCRE2_SIZE bufflen
+    )
+    
+    int pcre2_substring_copy_byname_8(
+        pcre2_match_data* match_data,
+        PCRE2_SPTR name,
+        PCRE2_UCHAR* buffer,
+        PCRE2_SIZE* bufflen
+    )
+    
+    int pcre2_substring_copy_bynumber_8(
+        pcre2_match_data* match_data,
+        uint32_t number,
+        PCRE2_UCHAR* buffer,
+        PCRE2_SIZE* bufflen
+    )
+    
+    int pcre2_substring_get_byname_8(
+        pcre2_match_data* match_data,
+        PCRE2_SPTR name,
+        PCRE2_UCHAR** bufferptr,
+        PCRE2_SIZE* bufflen
+    )
+    
+    int pcre2_substring_get_bynumber_8(
+        pcre2_match_data* match_data,
+        uint32_t number,
+        PCRE2_UCHAR** bufferptr,
+        PCRE2_SIZE* bufflen
+    )
+    
+    void pcre2_substring_free_8(PCRE2_UCHAR* buffer)
+
+
+cdef inline pcre2_code* pcre2_compile(
+    PCRE2_SPTR pattern,
+    PCRE2_SIZE length,
+    uint32_t options,
+    int* errorcode,
+    PCRE2_SIZE* erroroffset,
+    pcre2_compile_context* ccontext
+) noexcept:
+    return pcre2_compile_8(pattern, length, options, errorcode, erroroffset, ccontext)
+
+cdef inline void pcre2_code_free(pcre2_code* code) noexcept:
+    pcre2_code_free_8(code)
+
+cdef inline int pcre2_jit_compile(pcre2_code* code, uint32_t options) noexcept:
+    return pcre2_jit_compile_8(code, options)
+
+cdef inline pcre2_match_data* pcre2_match_data_create_from_pattern(
+    const pcre2_code* code,
+    pcre2_general_context* gcontext
+) noexcept:
+    return pcre2_match_data_create_from_pattern_8(code, gcontext)
+
+cdef inline void pcre2_match_data_free(pcre2_match_data* match_data) noexcept:
+    pcre2_match_data_free_8(match_data)
+
+cdef inline int pcre2_match(
+    const pcre2_code* code,
+    PCRE2_SPTR subject,
+    PCRE2_SIZE length,
+    PCRE2_SIZE startoffset,
+    uint32_t options,
+    pcre2_match_data* match_data,
+    pcre2_match_context* mcontext
+) noexcept:
+    return pcre2_match_8(code, subject, length, startoffset, options, match_data, mcontext)
+
+cdef inline int pcre2_jit_match(
+    const pcre2_code* code,
+    PCRE2_SPTR subject,
+    PCRE2_SIZE length,
+    PCRE2_SIZE startoffset,
+    uint32_t options,
+    pcre2_match_data* match_data,
+    pcre2_match_context* mcontext
+) noexcept:
+    return pcre2_jit_match_8(code, subject, length, startoffset, options, match_data, mcontext)
+
+cdef inline PCRE2_SIZE* pcre2_get_ovector_pointer(pcre2_match_data* match_data) noexcept:
+    return pcre2_get_ovector_pointer_8(match_data)
+
+cdef inline uint32_t pcre2_get_ovector_count(pcre2_match_data* match_data) noexcept:
+    return pcre2_get_ovector_count_8(match_data)
+
+cdef inline int pcre2_pattern_info(const pcre2_code* code, uint32_t what, void* where) noexcept:
+    return pcre2_pattern_info_8(code, what, where)
+
+cdef inline int pcre2_get_error_message(int errorcode, PCRE2_UCHAR* buffer, PCRE2_SIZE bufflen) noexcept:
+    return pcre2_get_error_message_8(errorcode, buffer, bufflen)

pyserve/_routing_py.py

@@ -0,0 +1,129 @@
+"""
+Pure Python fallback for _routing when PCRE2/Cython is not available.
+
+This module provides the same interface using the standard library `re` module.
+It's slower than the Cython+PCRE2 implementation but works everywhere.
+In future we may add pcre2.py library support for better performance in this module.
+"""
+
+import re
+from typing import Any, Dict, List, Optional, Pattern, Tuple
+
+
+class FastRouteMatch:    
+    __slots__ = ("config", "params")
+    
+    def __init__(self, config: Dict[str, Any], params: Optional[Dict[str, str]] = None):
+        self.config = config
+        self.params = params if params is not None else {}
+
+
+class FastRouter:
+    """
+    Router with regex pattern matching.
+    
+    Matching order (nginx-like):
+    1. Exact routes (prefix "=") - O(1) dict lookup
+    2. Regex routes (prefix "~" or "~*") - linear scan
+    3. Default route (fallback)
+    """
+    
+    __slots__ = ("_exact_routes", "_regex_routes", "_default_route", "_has_default", "_regex_count")
+    
+    def __init__(self) -> None:
+        self._exact_routes: Dict[str, Dict[str, Any]] = {}
+        self._regex_routes: List[Tuple[Pattern[str], Dict[str, Any]]] = []
+        self._default_route: Dict[str, Any] = {}
+        self._has_default: bool = False
+        self._regex_count: int = 0
+    
+    def add_route(self, pattern: str, config: Dict[str, Any]) -> None:
+        if pattern.startswith("="):
+            exact_path = pattern[1:]
+            self._exact_routes[exact_path] = config
+            return
+        
+        if pattern == "__default__":
+            self._default_route = config
+            self._has_default = True
+            return
+        
+        if pattern.startswith("~"):
+            case_insensitive = pattern.startswith("~*")
+            regex_pattern = pattern[2:] if case_insensitive else pattern[1:]
+            
+            flags = re.IGNORECASE if case_insensitive else 0
+            try:
+                compiled_pattern = re.compile(regex_pattern, flags)
+                self._regex_routes.append((compiled_pattern, config))
+                self._regex_count = len(self._regex_routes)
+            except re.error:
+                pass  # Ignore invalid patterns
+    
+    def match(self, path: str) -> Optional[FastRouteMatch]:
+        if path in self._exact_routes:
+            config = self._exact_routes[path]
+            return FastRouteMatch(config, {})
+        
+        for pattern, config in self._regex_routes:
+            match_obj = pattern.search(path)
+            if match_obj is not None:
+                params = match_obj.groupdict()
+                return FastRouteMatch(config, params)
+        
+        if self._has_default:
+            return FastRouteMatch(self._default_route, {})
+        
+        return None
+    
+    @property
+    def exact_routes(self) -> Dict[str, Dict[str, Any]]:
+        return self._exact_routes
+    
+    @property
+    def routes(self) -> Dict[Pattern[str], Dict[str, Any]]:
+        return {p: c for p, c in self._regex_routes}
+    
+    @property
+    def default_route(self) -> Optional[Dict[str, Any]]:
+        return self._default_route if self._has_default else None
+    
+    def list_routes(self) -> List[Dict[str, Any]]:
+        result: List[Dict[str, Any]] = []
+        
+        for path, config in self._exact_routes.items():
+            result.append({
+                "type": "exact",
+                "pattern": f"={path}",
+                "config": config,
+            })
+        
+        for pattern, config in self._regex_routes:
+            result.append({
+                "type": "regex",
+                "pattern": pattern.pattern,
+                "config": config,
+            })
+        
+        if self._has_default:
+            result.append({
+                "type": "default",
+                "pattern": "__default__",
+                "config": self._default_route,
+            })
+        
+        return result
+
+
+def fast_match(router: FastRouter, path: str) -> Optional[FastRouteMatch]:
+    """
+    Convenience function for matching a path.
+    
+    Args:
+        router: FastRouter instance
+        path: URL path to match
+    
+    Returns:
+        FastRouteMatch or None
+    """
+    return router.match(path)

pyserve/routing.py

@@ -1,7 +1,6 @@
 import mimetypes
-import re
 from pathlib import Path
-from typing import Any, Dict, Optional, Pattern
+from typing import Any, Dict
 from urllib.parse import urlparse
 
 import httpx
@@ -10,60 +9,19 @@ from starlette.responses import FileResponse, PlainTextResponse, Response
 
 from .logging_utils import get_logger
 
+try:
+    from pyserve._routing import FastRouteMatch, FastRouter, fast_match # type: ignore
+    CYTHON_ROUTING_AVAILABLE = True
+except ImportError:
+    from pyserve._routing_py import FastRouteMatch, FastRouter, fast_match
+    CYTHON_ROUTING_AVAILABLE = False
+
 logger = get_logger(__name__)
 
 
-class RouteMatch:
-    def __init__(self, config: Dict[str, Any], params: Optional[Dict[str, str]] = None):
-        self.config = config
-        self.params = params or {}
-
-
-class Router:
-    def __init__(self, static_dir: str = "./static"):
-        self.static_dir = Path(static_dir)
-        self.routes: Dict[Pattern, Dict[str, Any]] = {}
-        self.exact_routes: Dict[str, Dict[str, Any]] = {}
-        self.default_route: Optional[Dict[str, Any]] = None
-
-    def add_route(self, pattern: str, config: Dict[str, Any]) -> None:
-        if pattern.startswith("="):
-            exact_path = pattern[1:]
-            self.exact_routes[exact_path] = config
-            logger.debug(f"Added exact route: {exact_path}")
-            return
-
-        if pattern == "__default__":
-            self.default_route = config
-            logger.debug("Added default route")
-            return
-
-        if pattern.startswith("~"):
-            case_insensitive = pattern.startswith("~*")
-            regex_pattern = pattern[2:] if case_insensitive else pattern[1:]
-
-            flags = re.IGNORECASE if case_insensitive else 0
-            try:
-                compiled_pattern = re.compile(regex_pattern, flags)
-                self.routes[compiled_pattern] = config
-                logger.debug(f"Added regex route: {pattern}")
-            except re.error as e:
-                logger.error(f"Regex compilation error {pattern}: {e}")
-
-    def match(self, path: str) -> Optional[RouteMatch]:
-        if path in self.exact_routes:
-            return RouteMatch(self.exact_routes[path])
-
-        for pattern, config in self.routes.items():
-            match = pattern.search(path)
-            if match:
-                params = match.groupdict()
-                return RouteMatch(config, params)
-
-        if self.default_route:
-            return RouteMatch(self.default_route)
-
-        return None
+# Aliases for backward compatibility
+RouteMatch = FastRouteMatch
+Router = FastRouter
 
 
 class RequestHandler:

scripts/build_cython.py

@@ -9,9 +9,86 @@ Or via make:
 """
 
 import os
+import subprocess
 import sys
 from pathlib import Path
 
+
+def get_pcre2_config():
+    include_dirs = []
+    library_dirs = []
+    libraries = ["pcre2-8"]
+    
+    try:
+        cflags = subprocess.check_output(
+            ["pkg-config", "--cflags", "libpcre2-8"],
+            stderr=subprocess.DEVNULL
+        ).decode().strip()
+        libs = subprocess.check_output(
+            ["pkg-config", "--libs", "libpcre2-8"],
+            stderr=subprocess.DEVNULL
+        ).decode().strip()
+        
+        for flag in cflags.split():
+            if flag.startswith("-I"):
+                include_dirs.append(flag[2:])
+        
+        for flag in libs.split():
+            if flag.startswith("-L"):
+                library_dirs.append(flag[2:])
+            elif flag.startswith("-l"):
+                lib = flag[2:]
+                if lib not in libraries:
+                    libraries.append(lib)
+        
+        return include_dirs, library_dirs, libraries
+    except (subprocess.CalledProcessError, FileNotFoundError):
+        pass
+    
+    try:
+        cflags = subprocess.check_output(
+            ["pcre2-config", "--cflags"],
+            stderr=subprocess.DEVNULL
+        ).decode().strip()
+        libs = subprocess.check_output(
+            ["pcre2-config", "--libs8"],
+            stderr=subprocess.DEVNULL
+        ).decode().strip()
+        
+        for flag in cflags.split():
+            if flag.startswith("-I"):
+                include_dirs.append(flag[2:])
+        
+        for flag in libs.split():
+            if flag.startswith("-L"):
+                library_dirs.append(flag[2:])
+            elif flag.startswith("-l"):
+                lib = flag[2:]
+                if lib not in libraries:
+                    libraries.append(lib)
+        
+        return include_dirs, library_dirs, libraries
+    except (subprocess.CalledProcessError, FileNotFoundError):
+        pass
+    
+    # Fallback: try common paths
+    common_paths = [
+        "/opt/homebrew",  # macOS ARM
+        "/usr/local",     # macOS Intel / Linux
+        "/usr",           # Linux
+    ]
+    
+    for base in common_paths:
+        include_path = Path(base) / "include"
+        lib_path = Path(base) / "lib"
+        if (include_path / "pcre2.h").exists():
+            include_dirs.append(str(include_path))
+            library_dirs.append(str(lib_path))
+            break
+    
+    return include_dirs, library_dirs, libraries
+
+
 def build_extensions():
     try:
         from Cython.Build import cythonize
@@ -29,6 +106,14 @@ def build_extensions():
         print("Install with: pip install setuptools")
         return False
     
+    pcre2_include, pcre2_libdir, pcre2_libs = get_pcre2_config()
+    
+    if not pcre2_include:
+        print("WARNING: PCRE2 not found. Routing module may not compile.")
+        print("Install PCRE2: brew install pcre2 (macOS) or apt install libpcre2-dev (Linux)")
+    else:
+        print(f"Found PCRE2: includes={pcre2_include}, libs={pcre2_libdir}")
+    
     extensions = [
         Extension(
             "pyserve._path_matcher",
@@ -36,6 +121,18 @@ def build_extensions():
             extra_compile_args=["-O3", "-ffast-math"],
             define_macros=[("NPY_NO_DEPRECATED_API", "NPY_1_7_API_VERSION")],
         ),
+        Extension(
+            "pyserve._routing",
+            sources=["pyserve/_routing.pyx"],
+            include_dirs=pcre2_include,
+            library_dirs=pcre2_libdir,
+            libraries=pcre2_libs,
+            extra_compile_args=["-O3", "-ffast-math"],
+            define_macros=[
+                ("NPY_NO_DEPRECATED_API", "NPY_1_7_API_VERSION"),
+                ("PCRE2_CODE_UNIT_WIDTH", "8"),
+            ],
+        ),
     ]
     
     ext_modules = cythonize(
@@ -59,7 +156,9 @@ def build_extensions():
     cmd.run()
     
     print("\nCython extensions built successfully!")
-    print("   - pyserve/_path_matcher" + (".pyd" if sys.platform == "win32" else ".so"))
+    ext_suffix = ".pyd" if sys.platform == "win32" else ".so"
+    print(f"   - pyserve/_path_matcher{ext_suffix}")
+    print(f"   - pyserve/_routing{ext_suffix}")
     
     return True
 

tests/test_routing.py

@@ -50,16 +50,10 @@ class TestRouter:
     def test_router_initialization(self):
         """Test router initializes with correct defaults."""
         router = Router()
-        assert router.static_dir == Path("./static")
         assert router.routes == {}
         assert router.exact_routes == {}
         assert router.default_route is None
 
-    def test_router_custom_static_dir(self):
-        """Test router with custom static directory."""
-        router = Router(static_dir="/custom/path")
-        assert router.static_dir == Path("/custom/path")
-
     def test_add_exact_route(self):
         """Test adding exact match route."""
         router = Router()