From 0c09741c729a9735b30c030b24d6ca67ae864156 Mon Sep 17 00:00:00 2001 From: "David A. Mellis" Date: Sun, 4 Jul 2010 16:27:23 +0000 Subject: Adding WString.h and WString.cpp straight from Wiring (r. 726). Won't actually work yet. --- cores/arduino/WString.cpp | 396 ++++++++++++++++++++++++++++++++++++++++++++++ cores/arduino/WString.h | 119 ++++++++++++++ 2 files changed, 515 insertions(+) create mode 100644 cores/arduino/WString.cpp create mode 100644 cores/arduino/WString.h (limited to 'cores/arduino') diff --git a/cores/arduino/WString.cpp b/cores/arduino/WString.cpp new file mode 100644 index 0000000..667a304 --- /dev/null +++ b/cores/arduino/WString.cpp @@ -0,0 +1,396 @@ +/* + WString.cpp - String library for Wiring & Arduino + Copyright (c) 2009-10 Hernando Barragan. All rights reserved. + + 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 +#include "WProgram.h" +#include "WString.h" + + +String::String( const char *value ) +{ + if ( value == NULL ) + value = ""; + getBuffer( _length = strlen( value ) ); + strcpy( _buffer, value ); +} + +String::String( const String &value ) +{ + getBuffer( _length = value._length ); + strcpy( _buffer, value._buffer ); +} + +String::String( const char value ) +{ + _length = 1; + getBuffer(1); + _buffer[0] = value; + _buffer[1] = 0; +} + +String::String( const unsigned char value ) +{ + _length = 1; + getBuffer(1); + _buffer[0] = value; + _buffer[1] = 0; +} + +String::String( const int value, const int base ) +{ + char buf[33]; + itoa((signed long)value, buf, base); + getBuffer( _length = strlen(buf) ); + strcpy( _buffer, buf ); +} + +String::String( const unsigned int value, const int base ) +{ + char buf[33]; + ultoa((unsigned long)value, buf, base); + getBuffer( _length = strlen(buf) ); + strcpy( _buffer, buf ); +} + +String::String( const long value, const int base ) +{ + char buf[33]; + ltoa(value, buf, base); + getBuffer( _length = strlen(buf) ); + strcpy( _buffer, buf ); +} + +String::String( const unsigned long value, const int base ) +{ + char buf[33]; + ultoa(value, buf, 10); + getBuffer( _length = strlen(buf) ); + strcpy( _buffer, buf ); +} + +char String::charAt( unsigned int loc ) const +{ + return operator[]( loc ); +} + +void String::setCharAt( unsigned int loc, const char aChar ) +{ + if(_length > loc) { + _buffer[loc] = aChar; + } +} + +int String::compareTo( const String &s2 ) const +{ + return strcmp( _buffer, s2._buffer ); +} + +const String & String::concat( const String &s2 ) +{ + return (*this) += s2; +} + +const String & String::operator=( const String &rhs ) +{ + if ( this == &rhs ) + return *this; + + if ( rhs._length > _length ) + { + delete [] _buffer; + getBuffer( rhs._length ); + } + _length = rhs._length; + strcpy( _buffer, rhs._buffer ); + return *this; +} + +const String & String::operator+=( const char aChar ) +{ + if ( _length == _capacity ) + doubleBuffer(); + + _buffer[ _length++ ] = aChar; + _buffer[ _length ] = '\0'; + return *this; +} + +const String & String::operator+=( const String &other ) +{ + _length += other._length; + if ( _length > _capacity ) + { + char *temp = _buffer; + getBuffer( _length ); + strcpy( _buffer, temp ); + delete [] temp; + } + strcat( _buffer, other._buffer ); + return *this; +} + + +int String::operator==( const String &rhs ) const +{ + return ( _length == rhs._length && strcmp( _buffer, rhs._buffer ) == 0 ); +} + +int String::operator!=( const String &rhs ) const +{ + return ( _length != rhs.length() || strcmp( _buffer, rhs.toCharArray() ) != 0 ); +} + +int String::operator<( const String &rhs ) const +{ + return strcmp( _buffer, rhs._buffer ) < 0; +} + +int String::operator>( const String &rhs ) const +{ + return strcmp( _buffer, rhs._buffer ) > 0; +} + +int String::operator<=( const String &rhs ) const +{ + return strcmp( _buffer, rhs._buffer ) <= 0; +} + +int String::operator>=( const String & rhs ) const +{ + return strcmp( _buffer, rhs._buffer ) >= 0; +} + +char & String::operator[]( unsigned int index ) +{ + // need to check for valid index, to do later + return _buffer[ index ]; +} + +char String::operator[]( unsigned int index ) const +{ + // need to check for valid index, to do later + return _buffer[ index ]; +} + +boolean String::endsWith( const String &s2 ) const +{ + if ( _length < s2._length ) + return 0; + + return strcmp( &_buffer[ _length - s2._length], s2.toCharArray() ) == 0; +} + +boolean String::equals( const String &s2 ) const +{ + return ( _length == s2._length && strcmp( _buffer,s2._buffer ) == 0 ); +} + +boolean String::equalsIgnoreCase( const String &s2 ) const +{ + if ( this == &s2 ) + return true; //1; + else if ( _length != s2._length ) + return false; //0; + + return strcmp(toLowerCase().toCharArray(), s2.toLowerCase().toCharArray()) == 0; +} + +String String::replace( char findChar, char replaceChar ) +{ + String theReturn = _buffer; + char* temp = theReturn._buffer; + while( (temp = strchr( temp, findChar )) != 0 ) + *temp = replaceChar; + + return theReturn; +} + +String String::replace( const String& match, const String& replace ) +{ + String temp = _buffer, newString; + + int loc; + while ( (loc = temp.indexOf( match )) != -1 ) + { + newString += temp.substring( 0, loc ); + newString += replace; + temp = temp.substring( loc + match._length ); + } + newString += temp; + return newString; +} + +int String::indexOf( char temp ) const +{ + return indexOf( temp, 0 ); +} + +int String::indexOf( char ch, unsigned int fromIndex ) const +{ + if ( fromIndex >= _length ) + 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 >= _length ) + return -1; + + const char *theFind = strstr( &_buffer[ fromIndex ], s2.toCharArray() ); + + if ( theFind == NULL ) + return -1; + + return theFind - _buffer; // pointer subtraction +} + +int String::lastIndexOf( char theChar ) const +{ + return lastIndexOf( theChar, _length - 1 ); +} + +int String::lastIndexOf( char ch, unsigned int fromIndex ) const +{ + if ( fromIndex >= _length ) + 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, _length - s2._length ); +} + +int String::lastIndexOf( const String &s2, unsigned int fromIndex ) const +{ + // check for empty strings + if ( s2._length == 0 || s2._length - 1 > fromIndex || fromIndex >= _length ) + return -1; + + // matching first character + char temp = s2[ 0 ]; + + for ( int i = fromIndex; i >= 0; i-- ) + { + if ( _buffer[ i ] == temp && (*this).substring( i, i + s2._length ).equals( s2 ) ) + return i; + } + return -1; +} + +boolean String::startsWith( const String &s2 ) const +{ + if ( _length < s2._length ) + return 0; + + return startsWith( s2, 0 ); +} + +boolean String::startsWith( const String &s2, unsigned int offset ) const +{ + if ( offset > _length - s2._length ) + return 0; + + return strncmp( &_buffer[offset], s2.toCharArray(), s2._length ) == 0; +} + +String String::substring( unsigned int left ) const +{ + return substring( left, _length ); +} + +String String::substring( unsigned int left, unsigned int right ) const +{ + if ( left > right ) + { + int temp = right; + right = left; + left = temp; + } + + if ( right > _length ) + { + right = _length; + } + + char temp = _buffer[ right ]; // save the replaced character + _buffer[ right ] = '\0'; + String outPut = ( _buffer + left ); // pointer arithmetic + _buffer[ right ] = temp; //restore character + return outPut; +} + +String String::toLowerCase() const +{ + String temp = _buffer; + + for ( unsigned int i = 0; i < _length; i++ ) + temp._buffer[ i ] = (char)tolower( temp._buffer[ i ] ); + return temp; +} + +String String::toUpperCase() const +{ + String temp = _buffer; + + for ( unsigned int i = 0; i < _length; i++ ) + temp._buffer[ i ] = (char)toupper( temp._buffer[ i ] ); + return temp; +} + +String String::trim() const +{ + String temp = _buffer; + unsigned int i,j; + + for ( i = 0; i < _length; i++ ) + { + if ( !isspace(_buffer[i]) ) + break; + } + + for ( j = temp._length - 1; j > i; j-- ) + { + if ( !isspace(_buffer[j]) ) + break; + } + + return temp.substring( i, j + 1); +} + diff --git a/cores/arduino/WString.h b/cores/arduino/WString.h new file mode 100644 index 0000000..c93d493 --- /dev/null +++ b/cores/arduino/WString.h @@ -0,0 +1,119 @@ +/* + WString.h - String library for Wiring & Arduino + Copyright (c) 2009-10 Hernando Barragan. All right reserved. + + 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 +*/ + +#ifndef String_h +#define String_h + +#include "WProgram.h" +#include +#include + +class String +{ + public: + // constructors + String( const char *value = "" ); + String( const String &value ); + explicit String( const char ); + explicit String( const unsigned char ); + explicit String( const int, const int base=10); + explicit String( const unsigned int, const int base=10 ); + explicit String( const long, const int base=10 ); + explicit String( const unsigned long, const int base=10 ); + virtual ~String() { delete [] _buffer; } + + // operators + const String & operator = ( const String &rhs ); + const String & operator +=( const String &rhs ); + const String & operator +=( const char ); + int operator ==( const String &rhs ) const; + int operator !=( const String &rhs ) const; + int operator < ( const String &rhs ) const; + int operator > ( const String &rhs ) const; + int operator <=( const String &rhs ) const; + int operator >=( const String &rhs ) const; + char operator []( unsigned int index ) const; + char& operator []( unsigned int index ); +// operator const char *() const { return _buffer; } + + // general methods + char charAt( unsigned int index ) const; + int compareTo( const String &anotherString ) const; + boolean endsWith( const String &suffix ) const; + boolean equals( const String &anObject ) const; + boolean equalsIgnoreCase( const String &anotherString ) const; + int indexOf( char ch ) const; + int indexOf( char ch, unsigned int fromIndex ) const; + int indexOf( const String &str ) const; + int indexOf( const String &str, unsigned int fromIndex ) const; + int lastIndexOf( char ch ) const; + int lastIndexOf( char ch, unsigned int fromIndex ) const; + int lastIndexOf( const String &str ) const; + int lastIndexOf( const String &str, unsigned int fromIndex ) const; + const unsigned int length( ) const { return _length; } + void setCharAt(unsigned int index, const char ch); + boolean startsWith( const String &prefix ) const; + boolean startsWith( const String &prefix, unsigned int toffset ) const; + String substring( unsigned int beginIndex ) const; + String substring( unsigned int beginIndex, unsigned int endIndex ) const; + String toLowerCase( ) const; + String toUpperCase( ) const; + String trim( ) const; + const byte *getBytes() const { return (byte*)_buffer; } + const char* toCharArray() const { return _buffer; } + const String& concat( const String &str ); + String replace( char oldChar, char newChar ); + String replace( const String& match, const String& replace ); + friend String operator + ( String lhs, const String &rhs ); + + protected: + char *_buffer; // the actual char array + unsigned int _capacity; // the array length + unsigned int _length; // the String length + + void getBuffer(unsigned int maxStrLen); + void doubleBuffer( ); + + private: + +}; + +// allocate buffer space +inline void String::getBuffer(unsigned int maxStrLen) +{ + _capacity = maxStrLen; + _buffer = new char[_capacity + 1]; +} + +// double the buffer size +inline void String::doubleBuffer( ) +{ + char *temp = _buffer; + getBuffer( ++_capacity * 2 ); + strcpy( _buffer, temp ); + delete [] temp; +} + +inline String operator+( String lhs, const String &rhs ) +{ + return lhs += rhs; +} + + +#endif -- cgit v1.2.3-18-g5258