improved String
This commit is contained in:
@@ -4,223 +4,68 @@
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <string>
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class String {
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friend String operator+(const String& a, const String& b);
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long length;
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char* body;
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public:
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String() {
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length = 0;
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body = new char[1];
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body[0] = '\0';
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}
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string body;
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public:
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String() { body = ""; }
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String(const char* s) { body = s; }
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String(const char* s) {
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length = (long)strlen(s);
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body = new char[length + 1];
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for (long i = 0; i < length; ++i)
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body[i] = s[i];
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body[length] = '\0';
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}
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String(const char* s, char ps) {
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length = (long)strlen(s);
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body = new char[length + 1];
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for (long i = 0; i < length; ++i) {
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body = s;
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for (long i = 0; i < getLength(); ++i)
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body[i] = (s[i] == ps) ? '\n' : s[i];
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}
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body[length] = '\0';
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}
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~String() {
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if (body != NULL) {
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delete[] body;
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}
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}
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void println() const {
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printf("[%s]\n", body);
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}
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void addChar(char c) {
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char* buf = new char[length + 2];
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for (long i = 0; i < length; ++i) {
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buf[i] = body[i];
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}
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buf[length] = c;
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length++;
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//--
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buf[length] = '\0';
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delete[] body;
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body = buf;
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buf = NULL;
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}
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char* getCharArray() const {
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return body;
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}
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String(int s) { body = to_string(s); }
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String(long s) { body = to_string(s); }
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String(long long s) { body = to_string(s); }
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String(int s) {
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length = 0;
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body = new char[1];
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body[0] = '\0';
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if (s >= 0) {
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int s_ = s;
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int size = 1;
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while (s_ >= 10) {
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s_ = s_ / 10;
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size++;
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}
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length = size;
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body = new char[size + 1];
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sprintf(body, "%d", s);
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}
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}
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String(long s) : String((long long)s) { }
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String(long long s) {
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length = 0;
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body = new char[1];
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body[0] = '\0';
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if (s >= 0) {
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long long s_ = s;
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long size = 1;
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while (s_ >= 10) {
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s_ = s_ / 10;
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size++;
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}
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length = size;
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body = new char[size + 1];
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sprintf(body, "%lld", s);
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}
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}
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void println() const { printf("[%s]\n", body.c_str()); }
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void addChar(char c) { body += c; }
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const char* getCharArray() const { return body.c_str(); }
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const string& getBody() const { return body; }
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size_t getLength() const { return body.size(); }
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bool isEmpty() const { return body.size() != 0; }
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bool contains(const String& s) const { return body.find(s.getBody()) != string::npos; }
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bool operator==(const String& s) const { return body == s.getBody(); }
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const String& operator=(const String& s) {
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if (body != NULL)
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delete[] body;
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length = s.length;
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body = new char[length + 1];
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for (long i = 0; i < length; ++i)
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body[i] = s.body[i];
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body[length] = '\0';
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body = s.getBody();
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return *this;
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}
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static String DQuotes(const String& s) {
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String res;
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res.length = s.length + 2;
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res.body = new char[res.length + 1];
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res.body[0] = '"';
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res.body[res.length - 1] = '"';
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res.body[res.length] = '\0';
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for (long i = 0; i < s.length; ++i)
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res.body[i + 1] = s.body[i];
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return res;
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string tmp = '"' + s.getBody() + '"';
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return String(tmp.c_str());
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}
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String Replace(char f, char t) {
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String res;
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res.length = length;
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res.body = new char[length];
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res.body[length] = '\0';
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for (long i = 0; i < length; ++i)
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String res(body.c_str());
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for (auto i = 0; i < getLength(); ++i)
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res.body[i] = (body[i] == f) ? t : body[i];
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return res;
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}
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String Remove(char f) {
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String res;
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for (long i = 0; i < length; ++i) {
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for (auto i = 0; i < getLength(); ++i)
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if (body[i] != f)
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res.addChar(body[i]);
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}
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return res;
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}
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bool isEmpty() const {
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return length == 0;
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}
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bool contains(const String& s) const {
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bool res = false;
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bool search_on = false;
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if (s.isEmpty()) return true;
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if (s.length > length) return false;
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long k = 0;
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long start = -1;
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for (long i = 0; i < length; ++i) {
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if (search_on) {
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if (k < s.length) {
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if (body[i] == s.body[k]) {
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k++;
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}
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else {
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//обрыв поиска.
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search_on = false;
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k = 0;
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start = -1;
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}
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}
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else {
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//printf("starts with %ld", start);
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return true;
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}
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}
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else {
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if (body[i] == s.body[0]) {
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k = 1;
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start = i;
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search_on = true;
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//printf("search started %d\n", start);
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}
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}
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}
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if (search_on) {
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//printf("starts with %ld\n", start);
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res = true;
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}
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return res;
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}
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String toUpper() {
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String res = String(this->getCharArray());
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for (long i = 0; i < length; ++i)
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for (auto i = 0; i < getLength(); ++i)
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res.body[i] = toupper(body[i]);
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res.println();
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return res;
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}
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long getLength() {
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return length;
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}
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bool operator==(const String& s) const {
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if (length != s.length) return false;
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for (long i = 0; i < length; ++i) {
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if (body[i] != s.body[i]) return false;
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}
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return true;
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}
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/* регистр.
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#include <stdio.h>
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#include <ctype.h>
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int main(void) {
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FILE * f;
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int c;
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if ( ! ( f = fopen("file.txt", "r") ) )
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return -1;
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while ( ( c = fgetc(f) ) != EOF )
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putchar( isupper(c) ? tolower(c) : toupper(c) );
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return ( fclose(f) );
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}
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*/
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};
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String operator+(const String& a, const String& b) {
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String res = String();
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res.length = a.length + b.length;
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res.body = new char[res.length + 1];
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for (long i = 0; i < a.length; ++i)
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res.body[i] = a.body[i];
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for (long i = 0; i < b.length; ++i)
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res.body[i + a.length] = b.body[i];
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res.body[res.length] = '\0';
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return res;
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return String((a.getBody() + b.getBody()).c_str());
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}
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