diff --git a/.gitignore b/.gitignore
index e72a38f..494fa2e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -129,3 +129,6 @@ dmypy.json
 .pyre/
 
 .vscode/
+
+# Cython generated files
+*.c
diff --git a/example.yaml b/example.yaml
index 671d74d..75794d0 100644
--- a/example.yaml
+++ b/example.yaml
@@ -1,9 +1,11 @@
 dest: /path/to/store/backup/files  # The programs will store database and backup files in this location
+enable_pcre2: false  # Optional. Default value: false. Try to use PCRE2 first. PCRE2 may be a little slower than internal regex library.
 remove_old_files: true  # Optional. Default value: true. Remove unneeded backup files which already deleted in source tree when backuping files.
 ignore_hidden_files: true  # Optional. Default value: true. Whether to ignore files which its name starts with ".". Only effect folder which type is "path".
 programs:
   - name: Your program name  # This name is used to identify different application.
     base: /path/to/save/path  # Must be absoulte path.
+    enable_pcre2: false  # Optional.
     remove_old_files: true  # Optional.
     ignore_hidden_files: true  # Optional.
     files:
@@ -11,11 +13,20 @@ programs:
       - type: path
         path: folder  # path to a file/folder. All subfolders will include if it is a folder. Must be relative path if name not found.
         name: folder2  # optional. path to the backup files. Shoule be a relative path
+        enable_pcre2: false
         remove_old_files: true  # Optional.
         ignore_hidden_files: true  # Optional.
+        excludes:  # Optional. Exculde some files/folders
+          - data.db  # Releative path
+          - /path/to/data.db  # Absolute path
+          - type: wildcards
+            rule: "*/*.db"
+          - type: regex
+            rule: "\\d+\\.db"
       - type: leveldb  # module plyvel is needed to support this type. This will store leveldb database to a single file database (sqlite3)
         path: leveldb  # path to leveldb. Must be relative path.
         name: dest  # optional. path to the backup files. Shoule be a relative path
+        enable_pcre2: false
         remove_old_files: true  # Optional.
         domains:  # optional. Just backup minor domains in localstorage database. Only chromium is tested.
           - some domain
diff --git a/game_backuper/_Python.pxd b/game_backuper/_Python.pxd
new file mode 100644
index 0000000..27739a0
--- /dev/null
+++ b/game_backuper/_Python.pxd
@@ -0,0 +1,5 @@
+cdef extern from "Python.h":
+    void Py_INCREF(object o)
+    void Py_DECREF(object o) 
+    const char* PyUnicode_AsUTF8(object unicode)
+    const char* PyUnicode_AsUTF8AndSize(object unicode, Py_ssize_t *size)
diff --git a/game_backuper/_pcre2.h b/game_backuper/_pcre2.h
new file mode 100644
index 0000000..9d01197
--- /dev/null
+++ b/game_backuper/_pcre2.h
@@ -0,0 +1,2 @@
+#define PCRE2_CODE_UNIT_WIDTH 8
+#include "pcre2.h"
diff --git a/game_backuper/_pcre2.pxd b/game_backuper/_pcre2.pxd
new file mode 100644
index 0000000..6065f22
--- /dev/null
+++ b/game_backuper/_pcre2.pxd
@@ -0,0 +1,35 @@
+from libc.stddef cimport size_t
+from libc.stdint cimport uint8_t, uint32_t
+
+
+cdef extern from "_pcre2.h":
+    ctypedef uint8_t PCRE2_UCHAR
+    ctypedef const uint8_t* PCRE2_SPTR8
+    ctypedef PCRE2_SPTR8 PCRE2_SPTR
+    ctypedef size_t PCRE2_SIZE
+    ctypedef struct pcre2_compile_context:
+        pass
+    ctypedef struct pcre2_code:
+        pass
+    ctypedef struct pcre2_match_data:
+        pass
+    ctypedef struct pcre2_general_context:
+        pass
+    ctypedef struct pcre2_match_context:
+        pass
+
+    pcre2_code *pcre2_compile(PCRE2_SPTR pattern, PCRE2_SIZE length, uint32_t options, int *errorcode, PCRE2_SIZE *erroroffset, pcre2_compile_context *ccontext)
+    void pcre2_code_free(pcre2_code *code)
+    int pcre2_get_error_message(int errorcode, PCRE2_UCHAR *buffer, PCRE2_SIZE bufflen)
+    PCRE2_SPTR pcre2_get_mark(pcre2_match_data *match_data)
+    uint32_t pcre2_get_ovector_count(pcre2_match_data *match_data)
+    PCRE2_SIZE *pcre2_get_ovector_pointer(pcre2_match_data *match_data)
+    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)
+    int pcre2_pattern_info(const pcre2_code *code, uint32_t what, void *where)
+    pcre2_match_data *pcre2_match_data_create_from_pattern(const pcre2_code *code, pcre2_general_context *gcontext)
+    void pcre2_match_data_free(pcre2_match_data *match_data)
+    int pcre2_substring_get_bynumber(pcre2_match_data *match_data, uint32_t number, PCRE2_UCHAR **bufferptr, PCRE2_SIZE *bufflen)
+    void pcre2_substring_free(PCRE2_UCHAR *buffer)
+    int pcre2_substring_length_bynumber(pcre2_match_data *match_data, uint32_t number, PCRE2_SIZE *length)
+    void pcre2_substring_list_free(PCRE2_SPTR *list)
+    int pcre2_substring_list_get(pcre2_match_data *match_data, PCRE2_UCHAR ***listptr, PCRE2_SIZE **lengthsptr)
diff --git a/game_backuper/_pcre2.pyx b/game_backuper/_pcre2.pyx
new file mode 100644
index 0000000..e4dc556
--- /dev/null
+++ b/game_backuper/_pcre2.pyx
@@ -0,0 +1,440 @@
+from ._pcre2 cimport *
+from ._Python cimport *
+from enum import IntFlag
+from libc.stdlib cimport malloc, free
+from libc.string cimport strcpy
+from cpython.mem cimport PyMem_Free
+try:
+    from functools import cached_property
+except ImportError:
+    cached_property = property
+
+
+cdef extern from "_pcre2.h":
+    const uint32_t _PCRE2_ANCHORED "PCRE2_ANCHORED"
+    const uint32_t _PCRE2_ALLOW_EMPTY_CLASS "PCRE2_ALLOW_EMPTY_CLASS"
+    const uint32_t _PCRE2_ALT_BSUX "PCRE2_ALT_BSUX"
+    const uint32_t _PCRE2_ALT_CIRCUMFLEX "PCRE2_ALT_CIRCUMFLEX"
+    const uint32_t _PCRE2_ALT_VERBNAMES "PCRE2_ALT_VERBNAMES"
+    const uint32_t _PCRE2_AUTO_CALLOUT "PCRE2_AUTO_CALLOUT"
+    const uint32_t _PCRE2_CASELESS "PCRE2_CASELESS"
+    const uint32_t _PCRE2_COPY_MATCHED_SUBJECT "PCRE2_COPY_MATCHED_SUBJECT"
+    const uint32_t _PCRE2_DOLLAR_ENDONLY "PCRE2_DOLLAR_ENDONLY"
+    const uint32_t _PCRE2_DOTALL "PCRE2_DOTALL"
+    const uint32_t _PCRE2_DUPNAMES "PCRE2_DUPNAMES"
+    const uint32_t _PCRE2_ENDANCHORED "PCRE2_ENDANCHORED"
+    const uint32_t _PCRE2_EXTENDED "PCRE2_EXTENDED"
+    const uint32_t _PCRE2_FIRSTLINE "PCRE2_FIRSTLINE"
+    const uint32_t _PCRE2_LITERAL "PCRE2_LITERAL"
+    const uint32_t _PCRE2_MATCH_INVALID_UTF "PCRE2_MATCH_INVALID_UTF"
+    const uint32_t _PCRE2_MATCH_UNSET_BACKREF "PCRE2_MATCH_UNSET_BACKREF"
+    const uint32_t _PCRE2_MULTILINE "PCRE2_MULTILINE"
+    const uint32_t _PCRE2_NEVER_BACKSLASH_C "PCRE2_NEVER_BACKSLASH_C"
+    const uint32_t _PCRE2_NEVER_UCP "PCRE2_NEVER_UCP"
+    const uint32_t _PCRE2_NEVER_UTF "PCRE2_NEVER_UTF"
+    const uint32_t _PCRE2_NOTBOL "PCRE2_NOTBOL"
+    const uint32_t _PCRE2_NOTEOL "PCRE2_NOTEOL"
+    const uint32_t _PCRE2_NOTEMPTY "PCRE2_NOTEMPTY"
+    const uint32_t _PCRE2_NOTEMPTY_ATSTART "PCRE2_NOTEMPTY_ATSTART"
+    const uint32_t _PCRE2_NO_AUTO_CAPTURE "PCRE2_NO_AUTO_CAPTURE"
+    const uint32_t _PCRE2_NO_AUTO_POSSESS "PCRE2_NO_AUTO_POSSESS"
+    const uint32_t _PCRE2_NO_DOTSTAR_ANCHOR "PCRE2_NO_DOTSTAR_ANCHOR"
+    const uint32_t _PCRE2_NO_JIT "PCRE2_NO_JIT"
+    const uint32_t _PCRE2_NO_START_OPTIMIZE "PCRE2_NO_START_OPTIMIZE"
+    const uint32_t _PCRE2_NO_UTF_CHECK "PCRE2_NO_UTF_CHECK"
+    const uint32_t _PCRE2_PARTIAL_HARD "PCRE2_PARTIAL_HARD"
+    const uint32_t _PCRE2_PARTIAL_SOFT "PCRE2_PARTIAL_SOFT"
+    const uint32_t _PCRE2_UCP "PCRE2_UCP"
+    const uint32_t _PCRE2_UNGREEDY "PCRE2_UNGREEDY"
+    const uint32_t _PCRE2_USE_OFFSET_LIMIT "PCRE2_USE_OFFSET_LIMIT"
+    const uint32_t _PCRE2_UTF "PCRE2_UTF"
+    const size_t PCRE2_ZERO_TERMINATED
+    const int PCRE2_ERROR_NOMEMORY
+    const int PCRE2_ERROR_UNSET
+    const int PCRE2_INFO_NAMECOUNT
+    const int PCRE2_INFO_NAMEENTRYSIZE
+    const int PCRE2_INFO_NAMETABLE
+
+
+class Option(IntFlag):
+    PCRE2_ANCHORED = _PCRE2_ANCHORED
+    PCRE2_ALLOW_EMPTY_CLASS = _PCRE2_ALLOW_EMPTY_CLASS
+    PCRE2_ALT_BSUX = _PCRE2_ALT_BSUX
+    PCRE2_ALT_CIRCUMFLEX = _PCRE2_ALT_CIRCUMFLEX
+    PCRE2_ALT_VERBNAMES = _PCRE2_ALT_VERBNAMES
+    PCRE2_AUTO_CALLOUT = _PCRE2_AUTO_CALLOUT
+    PCRE2_CASELESS = _PCRE2_CASELESS
+    PCRE2_DOLLAR_ENDONLY = _PCRE2_DOLLAR_ENDONLY
+    PCRE2_DOTALL = _PCRE2_DOTALL
+    PCRE2_DUPNAMES = _PCRE2_DUPNAMES
+    PCRE2_ENDANCHORED = _PCRE2_ENDANCHORED
+    PCRE2_EXTENDED = _PCRE2_EXTENDED
+    PCRE2_FIRSTLINE = _PCRE2_FIRSTLINE
+    PCRE2_LITERAL = _PCRE2_LITERAL
+    PCRE2_MATCH_INVALID_UTF = _PCRE2_MATCH_INVALID_UTF
+    PCRE2_MATCH_UNSET_BACKREF = _PCRE2_MATCH_UNSET_BACKREF
+    PCRE2_MULTILINE = _PCRE2_MULTILINE
+    PCRE2_NEVER_BACKSLASH_C = _PCRE2_NEVER_BACKSLASH_C
+    PCRE2_NEVER_UCP = _PCRE2_NEVER_UCP
+    PCRE2_NEVER_UTF = _PCRE2_NEVER_UTF
+    PCRE2_NO_AUTO_CAPTURE = _PCRE2_NO_AUTO_CAPTURE
+    PCRE2_NO_AUTO_POSSESS = _PCRE2_NO_AUTO_POSSESS
+    PCRE2_NO_DOTSTAR_ANCHOR = _PCRE2_NO_DOTSTAR_ANCHOR
+    PCRE2_NO_START_OPTIMIZE = _PCRE2_NO_START_OPTIMIZE
+    PCRE2_NO_UTF_CHECK = _PCRE2_NO_UTF_CHECK
+    PCRE2_UCP = _PCRE2_UCP
+    PCRE2_UNGREEDY = _PCRE2_UNGREEDY
+    PCRE2_USE_OFFSET_LIMIT = _PCRE2_USE_OFFSET_LIMIT
+    PCRE2_UTF = _PCRE2_UTF
+
+
+class MatchOption(IntFlag):
+    PCRE2_ANCHORED = _PCRE2_ANCHORED
+    PCRE2_COPY_MATCHED_SUBJECT = _PCRE2_COPY_MATCHED_SUBJECT
+    PCRE2_ENDANCHORED = _PCRE2_ENDANCHORED
+    PCRE2_NOTBOL = _PCRE2_NOTBOL
+    PCRE2_NOTEOL = _PCRE2_NOTEOL
+    PCRE2_NOTEMPTY = _PCRE2_NOTEMPTY
+    PCRE2_NOTEMPTY_ATSTART = _PCRE2_NOTEMPTY_ATSTART
+    PCRE2_NO_JIT = _PCRE2_NO_JIT
+    PCRE2_NO_UTF_CHECK = _PCRE2_NO_UTF_CHECK
+    PCRE2_PARTIAL_HARD = _PCRE2_PARTIAL_HARD
+    PCRE2_PARTIAL_SOFT = _PCRE2_PARTIAL_SOFT
+
+
+cdef class Match:
+    cdef pcre2_match_data* data
+    cdef object inp
+    cdef object r
+    def __cinit__(self):
+        self.data = NULL
+
+    def __dealloc__(self):
+        if self.data != NULL:
+            pcre2_match_data_free(self.data)
+            self.data = NULL
+        Py_DECREF(self.r)
+        Py_DECREF(self.inp)
+
+    def __getitem__(self, uint32_t i):
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        if i >= count:
+            raise IndexError(u'No such group')
+        cdef PCRE2_UCHAR *buf
+        cdef PCRE2_SIZE le
+        cdef PCRE2_UCHAR* errbuf
+        cdef size_t errsize = sizeof(PCRE2_UCHAR) * 1024
+        cdef int re = pcre2_substring_get_bynumber(self.data, i, &buf, &le)
+        if re == 0:
+            s = buf.decode()
+            pcre2_substring_free(buf)
+            return s
+        elif re == PCRE2_ERROR_UNSET:
+            return None
+        elif re == PCRE2_ERROR_NOMEMORY:
+            raise MemoryError()
+        else:
+            errbuf = <PCRE2_UCHAR*> malloc(errsize)
+            if errbuf == NULL:
+                raise MemoryError()
+            s = None
+            if pcre2_get_error_message(re, errbuf, errsize) > 0:
+                s = errbuf.decode()
+            free(errbuf)
+            raise ValueError(s if s else u'Can not get substring.')
+
+    def __init__(self, unicode inp, r):
+        self.inp = inp
+        Py_INCREF(inp)
+        self.r = r
+        Py_INCREF(r)
+
+    def end(self) -> int:
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        cdef PCRE2_SIZE* vect = pcre2_get_ovector_pointer(self.data)
+        return vect[1]
+
+    @cached_property
+    def endpos(self) -> int:
+        return self.end()
+
+    def group(self) -> str:
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        cdef PCRE2_UCHAR *buf
+        cdef PCRE2_SIZE le
+        cdef PCRE2_UCHAR* errbuf
+        cdef size_t errsize = sizeof(PCRE2_UCHAR) * 1024
+        cdef int re = pcre2_substring_get_bynumber(self.data, 0, &buf, &le)
+        if re == 0:
+            s = buf.decode()
+            pcre2_substring_free(buf)
+            return s
+        elif re == PCRE2_ERROR_NOMEMORY:
+            raise MemoryError()
+        else:
+            errbuf = <PCRE2_UCHAR*> malloc(errsize)
+            if errbuf == NULL:
+                raise MemoryError()
+            s = None
+            if pcre2_get_error_message(re, errbuf, errsize) > 0:
+                s = errbuf.decode()
+            free(errbuf)
+            raise ValueError(s if s else u'Can not get substring.')
+
+    def groupdict(self):
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        cdef PCRE2_UCHAR **li
+        cdef re = pcre2_substring_list_get(self.data, &li, NULL)
+        if re == PCRE2_ERROR_NOMEMORY:
+            raise MemoryError()
+        elif re != 0:
+            raise ValueError(u'Unexpected error')
+        d = {}
+        cdef size_t i = 1
+        t = self.r.namedtable()
+        while li[i] != NULL:
+            if i not in t:
+                i += 1
+                continue
+            if li[i][0] == 0 and pcre2_substring_length_bynumber(self.data, i, NULL) != 0:
+                if t[i] not in d:
+                    d[t[i]] = None
+            else:
+                if t[i] not in d or d[t[i]] is None:
+                    d[t[i]] = li[i].decode()
+            i += 1
+        while i < count:
+            if i in t:
+                if t[i] not in d:
+                    d[t[i]] = None
+            i += 1
+        pcre2_substring_list_free(li)
+        return d
+
+    def groups(self):
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        cdef PCRE2_UCHAR **li
+        cdef re = pcre2_substring_list_get(self.data, &li, NULL)
+        if re == PCRE2_ERROR_NOMEMORY:
+            raise MemoryError()
+        elif re != 0:
+            raise ValueError(u'Unexpected error')
+        cdef size_t i = 1
+        l = []
+        while li[i] != NULL:
+            if li[i][0] == 0 and pcre2_substring_length_bynumber(self.data, i, NULL) != 0:
+                l.append(None)
+            else:
+                l.append(li[i].decode())
+            i += 1
+        while i < count:
+            l.append(None)
+            i += 1
+        pcre2_substring_list_free(li)
+        return tuple(l)
+
+    @cached_property
+    def lastgroup(self) -> str:
+        regs = self.regs
+        cdef uint32_t le = len(regs)
+        cdef uint32_t i = le - 1
+        while i >= 0:
+            if regs[i][0] == -1:
+                i -= 1
+                continue
+            break
+        if i == 0:
+            return None
+        t = self.r.namedtable()
+        if i in t:
+            return t[i]
+
+    @cached_property
+    def lastindex(self) -> int:
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        return count - 1
+
+    @cached_property
+    def pos(self) -> int:
+        return self.start()
+
+    @cached_property
+    def re(self):
+        return self.r
+
+    @cached_property
+    def regs(self):
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        cdef PCRE2_SIZE* vect = pcre2_get_ovector_pointer(self.data)
+        l = []
+        cdef uint32_t i = 0
+        while i < count:
+            if vect[i * 2] == <PCRE2_SIZE> -1:
+                l.append((-1, -1))
+            else:
+                l.append((vect[i * 2], vect[i * 2 + 1]))
+            i += 1
+        return tuple(l)
+
+    def span(self) -> (int, int):
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        cdef PCRE2_SIZE* vect = pcre2_get_ovector_pointer(self.data)
+        return (vect[0], vect[1])
+
+    def start(self) -> int:
+        if self.data == NULL:
+            raise ValueError(u'No matched data.')
+        cdef uint32_t count = pcre2_get_ovector_count(self.data)
+        if count <= 0:
+            raise ValueError(u'No match')
+        cdef PCRE2_SIZE* vect = pcre2_get_ovector_pointer(self.data)
+        return vect[0]
+
+    @cached_property
+    def string(self) -> str:
+        return self.inp
+
+    cdef set_data(self, pcre2_match_data* data):
+        if data == NULL:
+            raise ValueError(u'data is NULL.')
+        self.data = data
+
+
+cdef class PCRE2:
+    cdef pcre2_code* code
+    def __cinit__(self):
+        self.code = NULL
+
+    def __dealloc__(self):
+        if self.code != NULL:
+            pcre2_code_free(self.code)
+            self.code = NULL
+
+    def __init__(self, unicode inp, opt: Option = None):
+        if inp is None:
+            raise ValueError(u'Empty pattern.')
+        cdef uint32_t opts = _PCRE2_UTF | _PCRE2_ALT_BSUX
+        cdef int err
+        cdef PCRE2_SIZE erroffset
+        cdef PCRE2_UCHAR* errbuf
+        cdef size_t errsize = sizeof(PCRE2_UCHAR) * 1024
+        if isinstance(opt, Option):
+            opts = opt.value
+        elif isinstance(opt, int):
+            opts = opt
+        cdef pcre2_code* re = pcre2_compile(<PCRE2_SPTR>PyUnicode_AsUTF8(inp),
+                                            PCRE2_ZERO_TERMINATED, opts, &err,
+                                            &erroffset, NULL)
+        if re is NULL:
+            errbuf = <PCRE2_UCHAR*> malloc(errsize)
+            if errbuf == NULL:
+                raise MemoryError()
+            s = None
+            if pcre2_get_error_message(err, errbuf, errsize) > 0:
+                s = u"Error at offset %d: %s" % (erroffset, errbuf.decode())
+            free(errbuf)
+            raise ValueError(s if s else u'Not invalid')
+        self.code = re
+
+    def match(self, unicode inp, opt: MatchOption = None, PCRE2_SIZE startoffset = 0, int search_only = 0) -> Match:
+        if inp is None:
+            raise ValueError(u'Empty input.')
+        if self.code == NULL:
+            raise ValueError(u'pattern is NULL.')
+        cdef uint32_t opts = 0
+        if isinstance(opt, MatchOption):
+            opts = opt.value
+        elif isinstance(opt, int):
+            opts = opt
+        cdef pcre2_match_data* data = pcre2_match_data_create_from_pattern(self.code, NULL)
+        cdef PCRE2_UCHAR* errbuf
+        cdef size_t errsize = sizeof(PCRE2_UCHAR) * 1024
+        if data == NULL:
+            raise MemoryError()
+        cdef int re = pcre2_match(self.code, <PCRE2_SPTR>PyUnicode_AsUTF8(inp),
+                                  PCRE2_ZERO_TERMINATED, startoffset, opts, data, NULL)
+        if re <= 0:
+            pcre2_match_data_free(data)
+            data = NULL
+            if re == -1:  # No match
+                if search_only:
+                    return False
+                else:
+                    return None
+            elif re == 0:
+                raise ValueError(u'The vector of offsets is too small')
+            else:
+                errbuf = <PCRE2_UCHAR*> malloc(errsize)
+                if errbuf == NULL:
+                    raise MemoryError()
+                s = None
+                if pcre2_get_error_message(re, errbuf, errsize) > 0:
+                    s = errbuf.decode()
+                free(errbuf)
+                raise ValueError(s if s else u'Can not match')
+        if search_only:
+            pcre2_match_data_free(data)
+            return True
+        m = Match(inp, self)
+        m.set_data(data)
+        return m
+
+    def namedtable(self):
+        if self.code == NULL:
+            raise ValueError(u'pattern is NULL.')
+        cdef uint32_t count
+        cdef uint32_t ensize
+        if pcre2_pattern_info(self.code, PCRE2_INFO_NAMECOUNT, &count) != 0:
+            raise ValueError(u'Can not get namedtable')
+        if pcre2_pattern_info(self.code, PCRE2_INFO_NAMEENTRYSIZE, &ensize) != 0:
+            raise ValueError(u'Can not get namedtable')
+        if count <= 0 or ensize <= 0:
+            raise ValueError(u'Can not get namedtable')
+        cdef PCRE2_SPTR buf
+        if pcre2_pattern_info(self.code, PCRE2_INFO_NAMETABLE, &buf) != 0:
+            raise ValueError(u'Can not get namedtable')
+        cdef uint32_t i = 0
+        cdef size_t ind = 0
+        cdef char* tmp = <char*> malloc(ensize)
+        if tmp == NULL:
+            raise MemoryError()
+        d = {}
+        while i < count:
+            ind = i * ensize
+            strcpy(tmp, <char*>buf + ind + 2)
+            d[buf[ind] * 256 + buf[ind + 1]] = tmp.decode()
+            i += 1
+        free(tmp)
+        return d
diff --git a/game_backuper/config.py b/game_backuper/config.py
index c6d63a5..6591679 100644
--- a/game_backuper/config.py
+++ b/game_backuper/config.py
@@ -3,7 +3,7 @@ try:
     from yaml import CSafeLoader as SafeLoader
 except Exception:
     from yaml import SafeLoader
-from os.path import join, relpath, isfile, isdir, isabs
+from os.path import join, relpath, isfile, isdir, isabs, abspath
 from typing import List, Union
 from game_backuper.file import listdirs
 from collections import namedtuple
@@ -11,11 +11,27 @@ try:
     from functools import cached_property
 except ImportError:
     cached_property = property
+from game_backuper.regexp import Regex, wildcards_to_regex
 
 
 class BasicOption:
     '''Basic options which is included in config, program and files.'''
     _remove_old_files = None
+    _enable_pcre2 = None
+
+    @cached_property
+    def enable_pcre2(self) -> bool:
+        if self._enable_pcre2 is not None:
+            return self._enable_pcre2
+        prog = getattr(self, "_prog", None)
+        if prog is not None:
+            if prog._enable_pcre2 is not None:
+                return prog._enable_pcre2
+        cfg = getattr(self, "_cfg", None)
+        if cfg is not None:
+            if cfg._enable_pcre2 is not None:
+                return cfg._enable_pcre2
+        return False
 
     @cached_property
     def remove_old_files(self) -> bool:
@@ -33,6 +49,18 @@ class BasicOption:
 
     def parse_all(self, data=None):
         self.parse_remove_old_files(data)
+        self.parse_enable_pcre2(data)
+
+    def parse_enable_pcre2(self, data=None):
+        if data is None:
+            data = getattr(self, 'data')
+        if 'enable_pcre2' in data:
+            v = data['enable_pcre2']
+            if isinstance(v, bool):
+                self._enable_pcre2 = v
+            else:
+                raise TypeError('enable_pcre2 option must be a boolean.')
+            del v
 
     def parse_remove_old_files(self, data=None):
         if data is None:
@@ -133,6 +161,53 @@ class ConfigPath(BasicOption, NFBasicOption, BasicConfig):
         self.parse_all()
         self.parse_all_nf()
 
+    @property
+    def excludes(self) -> List[Union[str, Regex]]:
+        t = getattr(self, "__excludes", None)
+        if t is not None:
+            return t
+        del t
+        if 'excludes' in self.data:
+            if isinstance(self.data['excludes'], list):
+                r = []
+                for i in self.data["excludes"]:
+                    if isinstance(i, str):
+                        r.append(i)
+                    elif isinstance(i, dict):
+                        t = i['type']
+                        if t == 'wildcards':
+                            r.append(wildcards_to_regex(i['rule'], use_pcre2=self.enable_pcre2))  # noqa: E501
+                        elif t == "regex":
+                            r.append(Regex(i['rule'],
+                                           use_pcre2=self.enable_pcre2))
+                self.__excludes = r
+                return r
+
+    def is_exclude(self, b: str, loc: str) -> bool:
+        e = self.excludes
+        if e is None:
+            return False
+        if isabs(loc):
+            bl = abspath(loc)
+            rl = relpath(loc, b)
+        else:
+            bl = abspath(join(b, loc))
+            rl = relpath(join(b, loc), b)
+        for i in e:
+            if isinstance(i, str):
+                if isabs(i):
+                    if abspath(i) == bl:
+                        return True
+                else:
+                    if relpath(join(b, i), b) == rl:
+                        return True
+            elif isinstance(i, Regex):
+                if i.match_only(rl):
+                    return True
+                elif bl != loc and i.match_only(bl):
+                    return True
+        return False
+
 
 class ConfigOLeveldb(BasicOption, NFBasicOption, BasicConfig):
     def __init__(self, data, cfg, prog):
@@ -218,78 +293,44 @@ class Program(BasicOption, NFBasicOption):
             return self._files.copy()
         r = []
         self._files = r.copy()
-        for i in self.data[ke]:
+        for i in self.all_configs:
             b = self.base
-            if isinstance(i, str):
-                if isabs(i):
-                    raise ValueError('Absolute path must need a name.')
-                bp = join(b, i)
+            if isinstance(i, ConfigPath):
+                if isabs(i.path):
+                    bp = i.path
+                else:
+                    bp = join(b, i.path)
+                name = i.real_name
                 if isfile(bp):
-                    tname = relpath(join(b, i), b)
-                    r.append(ConfigNormalFile(tname, bp))
+                    tname = relpath(join(b, name), b)
+                    tmp = ConfigNormalFile(tname, bp)
                     del tname
+                    tmp.parse_all(i.data)
+                    r.append(tmp)
                 elif isdir(bp):
                     top = NFBasicOption(self._cfg, self)
+                    top.parse_ignore_hidden_files(i.data)
                     ll = listdirs(bp, top.ignore_hidden_files)
                     del top
                     for ii in ll:
-                        r.append(ConfigNormalFile(relpath(ii, b), ii))
-            elif isinstance(i, dict):
-                t = i['type']
-                if t == 'path':
-                    if isabs(i['path']):
-                        if 'name' not in i or not isinstance(i['name'], str) or i['name'] == '':  # noqa: E501
-                            raise ValueError('Absolute path must need a name.')
-                        bp = i['path']
-                        name = i['name']
-                    else:
-                        bp = join(b, i['path'])
-                        name = i['path']
-                        if 'name' in i and isinstance(i['name'], str):
-                            if i['name'] != '':
-                                name = i['name']
-                    if isfile(bp):
-                        tname = relpath(join(b, name), b)
-                        tmp = ConfigNormalFile(tname, bp)
+                        if i.is_exclude(bp, ii):
+                            continue
+                        tname = relpath(join(b, join(name, relpath(ii, bp))), b)  # noqa: E501
+                        tmp = ConfigNormalFile(tname, ii)
                         del tname
-                        tmp.parse_all(i)
+                        tmp.parse_all(i.data)
                         r.append(tmp)
-                    elif isdir(bp):
-                        top = NFBasicOption(self._cfg, self)
-                        top.parse_ignore_hidden_files(i)
-                        ll = listdirs(bp, top.ignore_hidden_files)
-                        del top
-                        for ii in ll:
-                            tname = relpath(join(b, join(name, relpath(ii, bp))), b)  # noqa: E501
-                            tmp = ConfigNormalFile(tname, ii)
-                            del tname
-                            tmp.parse_all(i)
-                            r.append(tmp)
-                elif t == 'leveldb':
-                    if isabs(i['path']):
-                        if 'name' not in i or not isinstance(i['name'], str) or i['name'] == '':  # noqa: E501
-                            raise ValueError('Absolute path must need a name.')
-                        p = i['path']
-                        n = i['name']
-                    else:
-                        p = join(b, i['path'])
-                        n = i['path']
-                        if 'name' in i and isinstance(i['name'], str):
-                            if i['name'] != '':
-                                n = i['name']
-                    dms = None
-                    if 'domains' in i and isinstance(i['domains'], list):
-                        dms = []
-                        for ii in i['domains']:
-                            if isinstance(ii, str) and len(ii) > 0:
-                                dms.append(ii.encode())
-                        if len(dms) == 0:
-                            dms = None
-                    tname = relpath(join(b, n), b)
-                    tmp = ConfigLeveldb(tname, p, dms)
-                    del tname
-                    tmp.parse_all(i)
-                    r.append(tmp)
+            elif isinstance(i, ConfigOLeveldb):
+                if isabs(i.path):
+                    p = i.path
+                else:
+                    p = join(b, i.path)
+                name = i.real_name
+                tname = relpath(join(b, name), b)
+                tmp = ConfigLeveldb(tname, p, i.domains)
+                del tname
+                tmp.parse_all(i.data)
+                r.append(tmp)
         for i in r:
             i._cfg = self._cfg
             i._prog = self
diff --git a/game_backuper/regexp.py b/game_backuper/regexp.py
new file mode 100644
index 0000000..85a5c32
--- /dev/null
+++ b/game_backuper/regexp.py
@@ -0,0 +1,51 @@
+try:
+    from game_backuper._pcre2 import PCRE2, Option as PCRE2Option, MatchOption
+    have_pcre2 = True
+except ImportError:
+    have_pcre2 = False
+from enum import IntFlag
+from re import I as REI, compile as re_comp
+
+
+class RegexFlag(IntFlag):
+    I = 1  # noqa: E741
+    IGNORECASE = 1
+
+
+class Regex:
+    def __init__(self, r: str, flags: RegexFlag = 0, use_pcre2: bool = False):
+        if have_pcre2 and use_pcre2:
+            opt = 0
+            if flags & RegexFlag.I:
+                opt = opt | PCRE2Option.PCRE2_CASELESS
+            self._re = PCRE2(r)
+            self._use_pcre2 = True
+        else:
+            if use_pcre2:
+                from sys import stderr
+                stderr.write("Can not load pcre2.\n")
+            self._use_pcre2 = False
+            opt = 0
+            if flags & RegexFlag.I:
+                opt = opt | REI
+            self._re = re_comp(r)
+
+    def match(self, s: str, startpos: int = 0):
+        if self._use_pcre2:
+            return self._re.match(s, MatchOption.PCRE2_ANCHORED, startpos)
+        else:
+            return self._re.match(s, startpos)
+
+    def match_only(self, s: str, startpos: int = 0) -> bool:
+        if self._use_pcre2:
+            return self._re.match(s, MatchOption.PCRE2_ANCHORED, startpos, True)  # noqa: E501
+        else:
+            return False if self._re.match(s, startpos) is None else True
+
+
+def wildcards_to_regex(s: str, **k):
+    for i in ['\\', '$', '(', ')', '+', '.', '[', '^', '{', '|']:
+        s = s.replace(i, f"\\{i}")
+    s = s.replace("*", ".*")
+    s = s.replace("?", ".")
+    return Regex(s, **k)
diff --git a/setup.py b/setup.py
index 2b3290c..5865bfb 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,15 @@
 # flake8: noqa
 import sys
 from game_backuper import __version__
+from setuptools import Extension
+try:
+    from Cython.Build import cythonize
+except ImportError:
+    def cythonize(li):
+        return []
+
+ext_modules = [Extension("game_backuper._pcre2", ["game_backuper/_pcre2.pyx"], libraries=["pcre2-8"])]
+
 if "py2exe" in sys.argv:
     from distutils.core import setup
     import py2exe
@@ -50,5 +59,6 @@ setup(
     long_description="A game backuper",
     keywords="backup",
     packages=["game_backuper"],
+    ext_modules=cythonize(ext_modules, compiler_directives={'language_level': "3"}),
     **params
 )