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-rw-r--r--lib/msp430/WString.cpp649
1 files changed, 649 insertions, 0 deletions
diff --git a/lib/msp430/WString.cpp b/lib/msp430/WString.cpp
new file mode 100644
index 0000000..2da6894
--- /dev/null
+++ b/lib/msp430/WString.cpp
@@ -0,0 +1,649 @@
+/*
+ WString.cpp - String library for Wiring & Arduino
+ ...mostly rewritten by Paul Stoffregen...
+ Copyright (c) 2009-10 Hernando Barragan. All rights reserved.
+ Copyright 2011, Paul Stoffregen, paul@pjrc.com
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#include "WString.h"
+
+
+/*********************************************/
+/* Constructors */
+/*********************************************/
+
+String::String(const char *cstr)
+{
+ init();
+ if (cstr) copy(cstr, strlen(cstr));
+}
+
+String::String(const String &value)
+{
+ init();
+ *this = value;
+}
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+String::String(String &&rval)
+{
+ init();
+ move(rval);
+}
+String::String(StringSumHelper &&rval)
+{
+ init();
+ move(rval);
+}
+#endif
+
+String::String(char c)
+{
+ init();
+ char buf[2];
+ buf[0] = c;
+ buf[1] = 0;
+ *this = buf;
+}
+
+String::String(unsigned char value, unsigned char base)
+{
+ init();
+ char buf[9];
+ utoa(value, buf, base);
+ *this = buf;
+}
+
+String::String(int value, unsigned char base)
+{
+ init();
+ char buf[18];
+ itoa(value, buf, base);
+ *this = buf;
+}
+
+String::String(unsigned int value, unsigned char base)
+{
+ init();
+ char buf[17];
+ utoa(value, buf, base);
+ *this = buf;
+}
+
+String::String(long value, unsigned char base)
+{
+ init();
+ char buf[34];
+ ltoa(value, buf, base);
+ *this = buf;
+}
+
+String::String(unsigned long value, unsigned char base)
+{
+ init();
+ char buf[33];
+ ultoa(value, buf, base);
+ *this = buf;
+}
+
+String::~String()
+{
+ free(buffer);
+}
+
+/*********************************************/
+/* Memory Management */
+/*********************************************/
+
+inline void String::init(void)
+{
+ buffer = NULL;
+ capacity = 0;
+ len = 0;
+ flags = 0;
+}
+
+void String::invalidate(void)
+{
+ if (buffer) free(buffer);
+ buffer = NULL;
+ capacity = len = 0;
+}
+
+unsigned char String::reserve(unsigned int size)
+{
+ if (buffer && capacity >= size) return 1;
+ if (changeBuffer(size)) {
+ if (len == 0) buffer[0] = 0;
+ return 1;
+ }
+ return 0;
+}
+
+unsigned char String::changeBuffer(unsigned int maxStrLen)
+{
+ //char *newbuffer = (char *)realloc(buffer, maxStrLen + 1);
+ char *newbuffer = (char *)malloc(maxStrLen + 1);
+
+ if (newbuffer) {
+ strncpy(newbuffer, buffer, len);
+ free(buffer);
+ buffer = newbuffer;
+ capacity = maxStrLen;
+ return 1;
+ }
+ return 0;
+}
+
+/*********************************************/
+/* Copy and Move */
+/*********************************************/
+
+String & String::copy(const char *cstr, unsigned int length)
+{
+ if (!reserve(length)) {
+ invalidate();
+ return *this;
+ }
+ len = length;
+ strcpy(buffer, cstr);
+ return *this;
+}
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+void String::move(String &rhs)
+{
+ if (buffer) {
+ if (capacity >= rhs.len) {
+ strcpy(buffer, rhs.buffer);
+ len = rhs.len;
+ rhs.len = 0;
+ return;
+ } else {
+ free(buffer);
+ }
+ }
+ buffer = rhs.buffer;
+ capacity = rhs.capacity;
+ len = rhs.len;
+ rhs.buffer = NULL;
+ rhs.capacity = 0;
+ rhs.len = 0;
+}
+#endif
+
+String & String::operator = (const String &rhs)
+{
+ if (this == &rhs) return *this;
+
+ if (rhs.buffer) copy(rhs.buffer, rhs.len);
+ else invalidate();
+
+ return *this;
+}
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+String & String::operator = (String &&rval)
+{
+ if (this != &rval) move(rval);
+ return *this;
+}
+
+String & String::operator = (StringSumHelper &&rval)
+{
+ if (this != &rval) move(rval);
+ return *this;
+}
+#endif
+
+String & String::operator = (const char *cstr)
+{
+ if (cstr) copy(cstr, strlen(cstr));
+ else invalidate();
+
+ return *this;
+}
+
+/*********************************************/
+/* concat */
+/*********************************************/
+
+unsigned char String::concat(const String &s)
+{
+ return concat(s.buffer, s.len);
+}
+
+unsigned char String::concat(const char *cstr, unsigned int length)
+{
+ unsigned int newlen = len + length;
+ if (!cstr) return 0;
+ if (length == 0) return 1;
+ if (!reserve(newlen)) return 0;
+ strcpy(buffer + len, cstr);
+ len = newlen;
+ return 1;
+}
+
+unsigned char String::concat(const char *cstr)
+{
+ if (!cstr) return 0;
+ return concat(cstr, strlen(cstr));
+}
+
+unsigned char String::concat(char c)
+{
+ char buf[2];
+ buf[0] = c;
+ buf[1] = 0;
+ return concat(buf, 1);
+}
+
+unsigned char String::concat(unsigned char num)
+{
+ char buf[4];
+ itoa(num, buf, 10);
+ return concat(buf, strlen(buf));
+}
+
+unsigned char String::concat(int num)
+{
+ char buf[7];
+ itoa(num, buf, 10);
+ return concat(buf, strlen(buf));
+}
+
+unsigned char String::concat(unsigned int num)
+{
+ char buf[6];
+ utoa(num, buf, 10);
+ return concat(buf, strlen(buf));
+}
+
+unsigned char String::concat(long num)
+{
+ char buf[12];
+ ltoa(num, buf, 10);
+ return concat(buf, strlen(buf));
+}
+
+unsigned char String::concat(unsigned long num)
+{
+ char buf[11];
+ ultoa(num, buf, 10);
+ return concat(buf, strlen(buf));
+}
+
+/*********************************************/
+/* Concatenate */
+/*********************************************/
+
+StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs)
+{
+ StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+ if (!a.concat(rhs.buffer, rhs.len)) a.invalidate();
+ return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr)
+{
+ StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+ if (!cstr || !a.concat(cstr, strlen(cstr))) a.invalidate();
+ return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, char c)
+{
+ StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+ if (!a.concat(c)) a.invalidate();
+ return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num)
+{
+ StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+ if (!a.concat(num)) a.invalidate();
+ return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, int num)
+{
+ StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+ if (!a.concat(num)) a.invalidate();
+ return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num)
+{
+ StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+ if (!a.concat(num)) a.invalidate();
+ return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, long num)
+{
+ StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+ if (!a.concat(num)) a.invalidate();
+ return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num)
+{
+ StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+ if (!a.concat(num)) a.invalidate();
+ return a;
+}
+
+/*********************************************/
+/* Comparison */
+/*********************************************/
+
+int String::compareTo(const String &s) const
+{
+ if (!buffer || !s.buffer) {
+ if (s.buffer && s.len > 0) return 0 - *(unsigned char *)s.buffer;
+ if (buffer && len > 0) return *(unsigned char *)buffer;
+ return 0;
+ }
+ return strcmp(buffer, s.buffer);
+}
+
+unsigned char String::equals(const String &s2) const
+{
+ return (len == s2.len && compareTo(s2) == 0);
+}
+
+unsigned char String::equals(const char *cstr) const
+{
+ if (len == 0) return (cstr == NULL || *cstr == 0);
+ if (cstr == NULL) return buffer[0] == 0;
+ return strcmp(buffer, cstr) == 0;
+}
+
+unsigned char String::operator<(const String &rhs) const
+{
+ return compareTo(rhs) < 0;
+}
+
+unsigned char String::operator>(const String &rhs) const
+{
+ return compareTo(rhs) > 0;
+}
+
+unsigned char String::operator<=(const String &rhs) const
+{
+ return compareTo(rhs) <= 0;
+}
+
+unsigned char String::operator>=(const String &rhs) const
+{
+ return compareTo(rhs) >= 0;
+}
+
+unsigned char String::equalsIgnoreCase( const String &s2 ) const
+{
+ if (this == &s2) return 1;
+ if (len != s2.len) return 0;
+ if (len == 0) return 1;
+ const char *p1 = buffer;
+ const char *p2 = s2.buffer;
+ while (*p1) {
+ if (tolower(*p1++) != tolower(*p2++)) return 0;
+ }
+ return 1;
+}
+
+unsigned char String::startsWith( const String &s2 ) const
+{
+ if (len < s2.len) return 0;
+ return startsWith(s2, 0);
+}
+
+unsigned char String::startsWith( const String &s2, unsigned int offset ) const
+{
+ if (offset > len - s2.len || !buffer || !s2.buffer) return 0;
+ return strncmp( &buffer[offset], s2.buffer, s2.len ) == 0;
+}
+
+unsigned char String::endsWith( const String &s2 ) const
+{
+ if ( len < s2.len || !buffer || !s2.buffer) return 0;
+ return strcmp(&buffer[len - s2.len], s2.buffer) == 0;
+}
+
+/*********************************************/
+/* Character Access */
+/*********************************************/
+
+char String::charAt(unsigned int loc) const
+{
+ return operator[](loc);
+}
+
+void String::setCharAt(unsigned int loc, char c)
+{
+ if (loc < len) buffer[loc] = c;
+}
+
+char & String::operator[](unsigned int index)
+{
+ static char dummy_writable_char;
+ if (index >= len || !buffer) {
+ dummy_writable_char = 0;
+ return dummy_writable_char;
+ }
+ return buffer[index];
+}
+
+char String::operator[]( unsigned int index ) const
+{
+ if (index >= len || !buffer) return 0;
+ return buffer[index];
+}
+
+void String::getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index) const
+{
+ if (!bufsize || !buf) return;
+ if (index >= len) {
+ buf[0] = 0;
+ return;
+ }
+ unsigned int n = bufsize - 1;
+ if (n > len - index) n = len - index;
+ strncpy((char *)buf, buffer + index, n);
+ buf[n] = 0;
+}
+
+/*********************************************/
+/* Search */
+/*********************************************/
+
+int String::indexOf(char c) const
+{
+ return indexOf(c, 0);
+}
+
+int String::indexOf( char ch, unsigned int fromIndex ) const
+{
+ if (fromIndex >= len) return -1;
+ const char* temp = strchr(buffer + fromIndex, ch);
+ if (temp == NULL) return -1;
+ return temp - buffer;
+}
+
+int String::indexOf(const String &s2) const
+{
+ return indexOf(s2, 0);
+}
+
+int String::indexOf(const String &s2, unsigned int fromIndex) const
+{
+ if (fromIndex >= len) return -1;
+ const char *found = strstr(buffer + fromIndex, s2.buffer);
+ if (found == NULL) return -1;
+ return found - buffer;
+}
+
+int String::lastIndexOf( char theChar ) const
+{
+ return lastIndexOf(theChar, len - 1);
+}
+
+int String::lastIndexOf(char ch, unsigned int fromIndex) const
+{
+ if (fromIndex >= len) return -1;
+ char tempchar = buffer[fromIndex + 1];
+ buffer[fromIndex + 1] = '\0';
+ char* temp = strrchr( buffer, ch );
+ buffer[fromIndex + 1] = tempchar;
+ if (temp == NULL) return -1;
+ return temp - buffer;
+}
+
+int String::lastIndexOf(const String &s2) const
+{
+ return lastIndexOf(s2, len - s2.len);
+}
+
+int String::lastIndexOf(const String &s2, unsigned int fromIndex) const
+{
+ if (s2.len == 0 || len == 0 || s2.len > len) return -1;
+ if (fromIndex >= len) fromIndex = len - 1;
+ int found = -1;
+ for (char *p = buffer; p <= buffer + fromIndex; p++) {
+ p = strstr(p, s2.buffer);
+ if (!p) break;
+ if ((unsigned int)(p - buffer) <= fromIndex) found = p - buffer;
+ }
+ return found;
+}
+
+String String::substring( unsigned int left ) const
+{
+ return substring(left, len);
+}
+
+String String::substring(unsigned int left, unsigned int right) const
+{
+ if (left > right) {
+ unsigned int temp = right;
+ right = left;
+ left = temp;
+ }
+ String out;
+ if (left > len) return out;
+ if (right > len) right = len;
+ char temp = buffer[right]; // save the replaced character
+ buffer[right] = '\0';
+ out = buffer + left; // pointer arithmetic
+ buffer[right] = temp; //restore character
+ return out;
+}
+
+/*********************************************/
+/* Modification */
+/*********************************************/
+
+void String::replace(char find, char replace)
+{
+ if (!buffer) return;
+ for (char *p = buffer; *p; p++) {
+ if (*p == find) *p = replace;
+ }
+}
+
+void String::replace(const String& find, const String& replace)
+{
+ if (len == 0 || find.len == 0) return;
+ int diff = replace.len - find.len;
+ char *readFrom = buffer;
+ char *foundAt;
+ if (diff == 0) {
+ while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
+ memcpy(foundAt, replace.buffer, replace.len);
+ readFrom = foundAt + replace.len;
+ }
+ } else if (diff < 0) {
+ char *writeTo = buffer;
+ while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
+ unsigned int n = foundAt - readFrom;
+ memcpy(writeTo, readFrom, n);
+ writeTo += n;
+ memcpy(writeTo, replace.buffer, replace.len);
+ writeTo += replace.len;
+ readFrom = foundAt + find.len;
+ len += diff;
+ }
+ strcpy(writeTo, readFrom);
+ } else {
+ unsigned int size = len; // compute size needed for result
+ while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
+ readFrom = foundAt + find.len;
+ size += diff;
+ }
+ if (size == len) return;
+ if (size > capacity && !changeBuffer(size)) return; // XXX: tell user!
+ int index = len - 1;
+ while (index >= 0 && (index = lastIndexOf(find, index)) >= 0) {
+ readFrom = buffer + index + find.len;
+ memmove(readFrom + diff, readFrom, len - (readFrom - buffer));
+ len += diff;
+ buffer[len] = 0;
+ memcpy(buffer + index, replace.buffer, replace.len);
+ index--;
+ }
+ }
+}
+
+void String::toLowerCase(void)
+{
+ if (!buffer) return;
+ for (char *p = buffer; *p; p++) {
+ *p = tolower(*p);
+ }
+}
+
+void String::toUpperCase(void)
+{
+ if (!buffer) return;
+ for (char *p = buffer; *p; p++) {
+ *p = toupper(*p);
+ }
+}
+
+void String::trim(void)
+{
+ if (!buffer || len == 0) return;
+ char *begin = buffer;
+ while (isspace(*begin)) begin++;
+ char *end = buffer + len - 1;
+ while (isspace(*end) && end >= begin) end--;
+ len = end + 1 - begin;
+ if (begin > buffer) memcpy(buffer, begin, len);
+ buffer[len] = 0;
+}
+
+/*********************************************/
+/* Parsing / Conversion */
+/*********************************************/
+
+long String::toInt(void) const
+{
+ if (buffer) return atol(buffer);
+ return 0;
+}
+
+
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