80 lines
1.3 KiB
C++
80 lines
1.3 KiB
C++
#include <cstring>
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#include <string>
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int test1(const std::string& str, const char* pattern)
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{
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const char* s = str.c_str();
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const char* ch = s;
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unsigned int size = std::strlen(pattern);
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while (true)
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{
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char* r = strstr(ch, pattern);
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if (!r)
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return -1;
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// Si le pattern est bien isolé
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if ((r == s || std::isspace(*(r-1))) && (*(r+size) == '\0' || std::isspace(*(r+size))))
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return r-s;
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ch = r+1;
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}
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}
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int test2(const std::string& str, const std::string& pattern)
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{
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const char* s = str.c_str();
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const char* ch = s;
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unsigned int size = pattern.size();
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while (true)
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{
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char* r = strstr(ch, pattern.c_str());
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if (!r)
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return -1;
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// Si le pattern est bien isolé
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if ((r == s || std::isspace(*(r-1))) && (*(r+size) == '\0' || std::isspace(*(r+size))))
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return r-s;
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ch = r+1;
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}
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}
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int test3(const std::string& str, const char* pattern)
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{
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const char* s = str.c_str();
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const char* ptr = s;
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do
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{
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if (*ptr == pattern[0])
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{
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if (ptr != s && !std::isspace(*(ptr-1)))
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continue;
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const char* p = &pattern[1];
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const char* tPtr = ptr+1;
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while (true)
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{
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if (*p == '\0')
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{
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if (*tPtr == '\0' || std::isspace(*tPtr))
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return ptr-s;
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else
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break;
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}
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if (*tPtr != *p)
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break;
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p++;
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tPtr++;
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}
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}
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}
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while (*ptr++ != '\0');
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return -1;
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}
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