7.12.2010 - add PIString

2010-12-07 01:55:30 +03:00
parent e321b5187d
commit 08f214dbfa
10 changed files with 360 additions and 134 deletions
--- a/pistring.cpp
+++ b/pistring.cpp
@@ -0,0 +1,147 @@
+#include "pistring.h"
+
+
+PIString & PIString::operator +=(const char * str) {
+	int i = 0;
+	while (str[i] != '\0') push_back(str[i++]);
+	return *this;
+}
+
+
+PIString & PIString::operator +=(const string & str) {
+	int l = str.size();
+	for (int i = 0; i < l; ++i) push_back(str[i]);
+	return *this;
+}
+
+
+PIString & PIString::operator +=(const PIString & str) {
+	int l = str.size();
+	for (int i = 0; i < l; ++i) push_back(str[i]);
+	return *this;
+}
+
+
+bool PIString::operator ==(const PIString & str) const {
+	int l = str.size();
+	if (size() != l) return false;
+	for (int i = 0; i < l; ++i)
+		if (str[i] != at(i))
+			return false;
+	return true;
+}
+
+
+PIString PIString::mid(const int start, const int len) const {
+	PIString str;
+	int s = start, l = len;
+	if (l == 0) return str;
+	if (s < 0) {
+		l += s;
+		s = 0;
+	}
+	if (l < 0) {
+		for (int i = s; i < size(); ++i)
+			str += at(i);
+	} else {
+		if (l > size() - s)
+			l = size() - s;
+		for (int i = s; i < s + l; ++i)
+			str += at(i);
+	}
+	return str;
+}
+
+
+PIString & PIString::cutMid(const int start, const int len) {
+	int s = start, l = len;
+	if (l == 0) return *this;
+	if (s < 0) {
+		l += s;
+		s = 0;
+	}
+	if (l < 0)
+		erase(begin() + s, end());
+	else {
+		if (l > size() - s)
+			l = size() - s;
+		erase(begin() + s, begin() + s + l);
+	}
+	return *this;
+}
+
+
+PIString PIString::trimmed() const {
+	int st = 0, fn = 0;
+	for (int i = 0; i < size(); ++i)
+		if (at(i) != ' ' && at(i) != '\t')
+			{st = i; break;}
+	for (int i = size() - 1; i >= 0; --i)
+		if (at(i) != ' ' && at(i) != '\t')
+			{fn = i; break;}
+	return mid(st, fn - st + 1);
+}
+
+
+int PIString::find(const char str, const int start) {
+	for (int i = start; i < size(); ++i)
+		if (at(i) == str)
+			return i;
+	return -1;
+}
+
+
+int PIString::find(const PIString str, const int start) {
+	int l = str.size();
+	for (int i = start; i < size() - l + 1; ++i)
+		if (mid(i, l) == str)
+			return i;
+	return -1;
+}
+
+
+int PIString::findLast(const char str, const int start) {
+	for (int i = size() - 1; i >= start; --i)
+		if (at(i) == str)
+			return i;
+	return -1;
+}
+
+
+int PIString::findLast(const PIString str, const int start) {
+	int l = str.size();
+	for (int i = size() - l; i >= start; --i)
+		if (mid(i, l) == str)
+			return i;
+	return -1;
+}
+
+
+PIString PIString::toUpperCase() const {
+	PIString str(*this);
+	int l = str.size();
+	for (int i = 0; i < l; ++i) str[i] = chrUpr(str[i]);
+	return str;
+}
+
+
+PIString PIString::toLowerCase() const {
+	PIString str(*this);
+	int l = str.size();
+	for (int i = 0; i < l; ++i) str[i] = chrLwr(str[i]);
+	return str;
+}
+
+
+char chrUpr(char c) {
+	if (c >= 'a' && c <= 'z') return c + 'A' - 'a';
+	//if (c >= 'а' && c <= 'я') return c + 'А' - 'а';
+	return c;
+}
+
+
+char chrLwr(char c) {
+	if (c >= 'A' && c <= 'Z') return c + 'a' - 'A';
+	//if (c >= 'А' && c <= 'Я') return c + 'а' - 'А';
+	return c;
+}