1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "common/napi_helper.cpp"
17 #include "common/native_common.h"
18 #include "napi/native_api.h"
19 #include <cerrno>
20 #include <js_native_api.h>
21 #include <node_api.h>
22 #include <regex.h>
23
24 #define ONE 1
25 #define PARAM_0 0
26 #define PARAM_1 1
27 #define PARAM_2 2
28 #define PARAM_UNNORMAL (-1)
29 #define RETURN_0 0
30 #define FAILD (-1)
31 #define ERRON_0 0
32 #define SIZE_10 10
33 #define SIZE_100 100
34 #define SIZE_4096 4096
35 #define SIZE_8192 8192
36
Regcomp(napi_env env,napi_callback_info info)37 static napi_value Regcomp(napi_env env, napi_callback_info info)
38 {
39 regex_t r = {PARAM_0};
40 const char pstTern[] = "1234567890";
41 int regCompValue = regcomp(&r, pstTern, REG_EXTENDED);
42 napi_value result = nullptr;
43 napi_create_int32(env, regCompValue, &result);
44 return result;
45 }
46
Regexec(napi_env env,napi_callback_info info)47 static napi_value Regexec(napi_env env, napi_callback_info info)
48 {
49 const char *pstTern = "1234567890";
50 char buff[10] = "1";
51 const size_t nMatch = ONE;
52 regex_t r = {PARAM_0};
53 regmatch_t pMatch[1];
54 napi_value result = nullptr;
55 int regCompValue = regcomp(&r, pstTern, REG_EXTENDED);
56 if (regCompValue == PARAM_0) {
57 int regExecValue = regexec(&r, buff, nMatch, pMatch, PARAM_0);
58 napi_create_int32(env, regExecValue, &result);
59 }
60 return result;
61 }
62
Regerror(napi_env env,napi_callback_info info)63 static napi_value Regerror(napi_env env, napi_callback_info info)
64 {
65 char buf[200];
66 regex_t reg = {PARAM_0};
67 int resultValue = FAILD;
68 int error_value = regerror(PARAM_0, ®, buf, sizeof buf);
69 if (error_value != PARAM_0) {
70 resultValue = RETURN_0;
71 }
72
73 napi_value result = nullptr;
74 napi_create_int32(env, resultValue, &result);
75
76 return result;
77 }
78
Regfree(napi_env env,napi_callback_info info)79 static napi_value Regfree(napi_env env, napi_callback_info info)
80 {
81 regex_t reg = {PARAM_0};
82 const char *psttern = "1234567890";
83 regcomp(®, psttern, REG_EXTENDED);
84 int resultValue = FAILD;
85 errno = ERRON_0;
86 regfree(®);
87 if (errno == ERRON_0) {
88 resultValue = RETURN_0;
89 }
90
91 napi_value result = nullptr;
92 napi_create_int32(env, resultValue, &result);
93
94 return result;
95 }
96
97 EXTERN_C_START
Init(napi_env env,napi_value exports)98 static napi_value Init(napi_env env, napi_value exports)
99 {
100 napi_property_descriptor desc[] = {
101 {"regcomp", nullptr, Regcomp, nullptr, nullptr, nullptr, napi_default, nullptr},
102 {"regexec", nullptr, Regexec, nullptr, nullptr, nullptr, napi_default, nullptr},
103 {"regerror", nullptr, Regerror, nullptr, nullptr, nullptr, napi_default, nullptr},
104 {"regfree", nullptr, Regfree, nullptr, nullptr, nullptr, napi_default, nullptr},
105 };
106 napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
107 return exports;
108 }
109
110 EXTERN_C_END
111
112 static napi_module demoModule = {
113 .nm_version = 1,
114 .nm_flags = 0,
115 .nm_filename = nullptr,
116 .nm_register_func = Init,
117 .nm_modname = "regex",
118 .nm_priv = ((void *)0),
119 .reserved = {0},
120 };
121
RegisterEntryModule(void)122 extern "C" __attribute__((constructor)) void RegisterEntryModule(void) { napi_module_register(&demoModule); }
123