X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=ntsimulator%2Fregxstring%2Fgen_regex.cpp;fp=ntsimulator%2Fregxstring%2Fgen_regex.cpp;h=e0a4953432bde424b98b58ffa64ba4e0f0fc8901;hb=f1d5c9198acde7a7ce296490087cad37e008f688;hp=0000000000000000000000000000000000000000;hpb=f2d8f1002fa93848c80a88e5658db4816cba3020;p=sim%2Fo1-interface.git

diff --git a/ntsimulator/regxstring/gen_regex.cpp b/ntsimulator/regxstring/gen_regex.cpp
new file mode 100644
index 0000000..e0a4953
--- /dev/null
+++ b/ntsimulator/regxstring/gen_regex.cpp
@@ -0,0 +1,86 @@
+/*************************************************************************
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+***************************************************************************/
+
+#include <string>
+#include <cstdlib>
+#include <iostream>
+
+#include "regxstring.h"
+
+using namespace std;
+
+static string trim(std::string str){
+    size_t i = 0,e = str.length();
+    for(;i < e && std::isspace(str[i]);++i);
+    size_t j = e;
+    for(;j > i && std::isspace(str[j - 1]);--j);
+    return (i < j ? str.substr(i,j - i) : "");
+}
+
+static string pre_handle(const string & str)
+{
+    string ret = trim(str);
+    if(!ret.empty()) {
+        if(ret[0] != '^') {
+            ret.insert(ret.begin(),'^');
+        }
+
+        if(ret[ret.size() - 1] != '$') {
+            ret.push_back('$');
+        }
+    }
+    return ret;
+}
+
+static void rand_init(void) {
+    unsigned int seed;
+    FILE* urandom = fopen("/dev/urandom", "r");
+    size_t ret = fread(&seed, sizeof(int), 1, urandom);
+    (void)ret;
+    fclose(urandom);
+    srand(seed);
+    srandom(seed);
+}
+
+int main(int argc, const char ** argv)
+{
+    CRegxString regxstr;
+    string regx = "";
+
+    switch(argc) {
+        case 2:
+            rand_init();
+            regx = argv[1];
+            break;
+
+        case 3:
+            int pseudo_seed = 0;
+            int i = 0;
+            while(argv[1][i]) {
+                pseudo_seed *= 10;
+                pseudo_seed += argv[1][i] - '0';
+                i++;
+            }
+            srand(pseudo_seed);
+            srandom(pseudo_seed);
+            regx = argv[2];
+            break;
+    }
+
+    regxstr.ParseRegx(pre_handle(regx).c_str());
+    cout << regxstr.RandString() << endl;
+    
+    return 0;
+}