[gnoduino: 200/237] Revert "Merge branch 'master' of github.com:arduino/Arduino into diskloader_reboot"



commit d99c59507f6c191a632ff56de88c982982020d41
Author: Zach Eveland <zeveland blacklabel-development com>
Date:   Thu Oct 27 11:45:13 2011 -0400

    Revert "Merge branch 'master' of github.com:arduino/Arduino into diskloader_reboot"
    
    This reverts commit df9835efafd13685251749bc210c0b96a18a96a5, reversing
    changes made to ec45af8bfa9222a807c075dd1db4b5aa798bba03.
    
    Conflicts:
    
    	hardware/arduino/variants/mega/pins_arduino.h
    	libraries/Ethernet/examples/PachubeClientString/PachubeClientString.ino

 arduino/boards.txt                                 |    2 +-
 arduino/bootloaders/stk500v2/stk500boot.c          |    3 +-
 .../stk500v2/stk500boot_v2_mega2560.hex            |  648 +++++++++++++++-----
 arduino/cores/arduino/HardwareSerial.h             |   14 +-
 arduino/cores/arduino/Print.cpp                    |  207 ++++---
 arduino/cores/arduino/WString.h                    |  255 ++++++---
 6 files changed, 820 insertions(+), 309 deletions(-)
---
diff --git a/arduino/boards.txt b/arduino/boards.txt
index aa5c70d..bb36796 100644
--- a/arduino/boards.txt
+++ b/arduino/boards.txt
@@ -10,7 +10,7 @@ uno.bootloader.extended_fuses=0x05
 uno.bootloader.path=optiboot
 uno.bootloader.file=optiboot_atmega328.hex
 uno.bootloader.unlock_bits=0x3F
-uno.bootloader.lock_bits=0x2F
+uno.bootloader.lock_bits=0x0F
 uno.build.mcu=atmega328p
 uno.build.f_cpu=16000000L
 uno.build.core=arduino
diff --git a/arduino/bootloaders/stk500v2/stk500boot.c b/arduino/bootloaders/stk500v2/stk500boot.c
index 3d5b095..13dec89 100755
--- a/arduino/bootloaders/stk500v2/stk500boot.c
+++ b/arduino/bootloaders/stk500v2/stk500boot.c
@@ -95,8 +95,7 @@ LICENSE:
 #include	"command.h"
 
 
-//#if defined(_MEGA_BOARD_) || defined(_BOARD_AMBER128_) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__)
-#if 0
+#if defined(_MEGA_BOARD_) || defined(_BOARD_AMBER128_) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__)
 	#define		ENABLE_MONITOR
 	static void	RunMonitor(void);
 #endif
diff --git a/arduino/bootloaders/stk500v2/stk500boot_v2_mega2560.hex b/arduino/bootloaders/stk500v2/stk500boot_v2_mega2560.hex
index ace9cb1..4f36699 100644
--- a/arduino/bootloaders/stk500v2/stk500boot_v2_mega2560.hex
+++ b/arduino/bootloaders/stk500v2/stk500boot_v2_mega2560.hex
@@ -1,141 +1,513 @@
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+:10FA700041F0823941F0803911F48FE005C080E017
+:10FA800003C082E001C08AE01A828B8344C09924BB
+:10FA9000939481C08D81882311F48EE12CC0813034
+:10FAA00011F081E028C088E926C01A82E1E0F0E088
+:10FAB00089E08093570084918B831C8224E030E09E
+:10FAC0008EC18B81803589F48C81883039F4E2E0F5
+:10FAD000F0E089E08093570084910DC0E0E0F0E011
+:10FAE00089E080935700849106C0E3E0F0E089E06C
+:10FAF0008093570084911A82DFCF8D81836C99E0C7
+:10FB0000E1E0F0E0082E90935700E89507B600FC7E
+:10FB1000FDCF1A821B8223E030E061C11A82CE5CE5
+:10FB2000DE4F188219821A821B82C253D14055C1FE
+:10FB30008A8190E0A0E0B0E0582F442733272227A5
+:10FB40008B8190E0A0E0B0E0DC0199278827282B8A
+:10FB5000392B4A2B5B2B8D8190E0A0E0B0E0282B65
+:10FB6000392B4A2B5B2B8C8190E0A0E0B0E0BA2FC0
+:10FB7000A92F982F8827282B392B4A2B5B2B220F54
+:10FB8000331F441F551FC05EDE4F288339834A83CD
+:10FB90005B83C052D1401A8220C19A812B8183316C
+:10FBA00049F0C05EDE4F488159816A817B81C05235
+:10FBB000D1408AC0CE5CDE4F488159816A817B8109
+:10FBC000C253D140403080EC580783E0680780E0A2
+:10FBD0007807F0F483E0FA0160935B0080935700AC
+:10FBE000E89507B600FCFDCFCE5CDE4F4881598119
+:10FBF0006A817B81C253D14040505F4F6F4F7F4F2E
+:10FC0000CE5CDE4F488359836A837B83C253D140E5
+:10FC1000C95CDE4F9883C753D140CA5CDE4F18825F
+:10FC2000C653D140022F10E0CA5CDE4F6881798153
+:10FC3000C653D140062B172BC05EDE4F4881598139
+:10FC40006A817B81C052D140DE011B9631E08C91EC
+:10FC500011962C9111971296C75CDE4F2883C953D9
+:10FC6000D140C85CDE4F1882C853D14090E0C85CD8
+:10FC7000DE4FE881F981C853D1408E2B9F2B0C01B8
+:10FC8000FA0160935B0030935700E89511244E5FB2
+:10FC90005F4F6F4F7F4F02501040C9F685E0C05E46
+:10FCA000DE4FE880F9800A811B81C052D140F70104
+:10FCB00000935B0080935700E89507B600FCFDCFEA
+:10FCC00081E180935700E8951A82C05EDE4F488339
+:10FCD00059836A837B83C052D1407FC0FA80C55C60
+:10FCE000DE4FF882CB53D140C65CDE4F1882CA5338
+:10FCF000D1408B81C82EDD24C65CDE4F088119817E
+:10FD0000CA53D140C02AD12A1A828981BE016D5FAF
+:10FD10007F4F843121F59601C05EDE4FE880F98087
+:10FD20000A811B81C052D1400BBFF7018791969188
+:10FD3000DB018C9311969C936E5F7F4FD801C701B6
+:10FD40000296A11DB11DC05EDE4F88839983AA83F0
+:10FD5000BB83C052D14022503040F1F636C0C05E65
+:10FD6000DE4F288139814A815B81C052D14008949D
+:10FD7000C108D108760100E010E00894C11CD11C34
+:10FD80000894E11CF11C011D111DE20EF31E041F5D
+:10FD9000151F21BDBB27A52F942F832F82BD2F5F59
+:10FDA0003F4F4F4F5F4FF89A80B5DB018D93BD01F8
+:10FDB0002E153F054007510761F7C05EDE4F2883CF
+:10FDC00039834A835B83C052D14096012D5F3F4FF8
+:10FDD000FB01108204C080EC8A8322E030E08BE1DA
+:10FDE0008093C6008091C00086FFFCCF8091C00048
+:10FDF00080648093C000C15DDE4FF881CF52D14056
+:10FE0000F093C6008091C00086FFFCCF8091C000B7
+:10FE100080648093C000432F3093C6008091C0005F
+:10FE200086FFFCCF8091C00080648093C000922F39
+:10FE30002093C6008091C00086FFFCCF8091C00057
+:10FE400080648093C0008EE08093C6008091C000E3
+:10FE500086FFFCCF8091C00080648093C00065E184
+:10FE6000C15DDE4FE880CF52D1406E2569276427FF
+:10FE7000FE01319610C090819093C6008091C00021
+:10FE800086FFFCCF31968091C00080648093C000D3
+:10FE90006927215030402115310569F76093C6006C
+:10FEA0008091C00086FFFCCF8091C0008064809369
+:10FEB000C00085B1805885B9992081F4C15DDE4FBD
+:10FEC0000881CF52D1400F5FC15DDE4F0883CF5212
+:10FED000D14090E0A0E0B0E00D949AF527982F98DB
+:10FEE00080E090E020ED37E0F9013197F1F70196DD
+:10FEF00084369105C9F700008091C0008D7F809302
+:10FF0000C00081E180935700E895EE27FF27099410
+:10FF1000FFCF90E00D949AF597FB092E07260AD0A3
+:10FF200077FD04D02ED006D000201AF4709561958C
+:10FF30007F4F0895F6F7909581959F4F0895A1E220
+:10FF40001A2EAA1BBB1BFD010DC0AA1FBB1FEE1F53
+:10FF5000FF1FA217B307E407F50720F0A21BB30B9E
+:10FF6000E40BF50B661F771F881F991F1A9469F71A
+:10FF700060957095809590959B01AC01BD01CF0176
+:10FF80000895AA1BBB1B51E107C0AA1FBB1FA617E0
+:10FF9000B70710F0A61BB70B881F991F5A95A9F732
+:10FFA00080959095BC01CD010895F999FECF92BD41
+:10FFB00081BDF89A992780B50895262FF999FECF2B
+:10FFC0001FBA92BD81BD20BD0FB6F894FA9AF99A76
+:0AFFD0000FBE01960895F894FFCFCC
 :040000033000E000E9
 :00000001FF
diff --git a/arduino/cores/arduino/HardwareSerial.h b/arduino/cores/arduino/HardwareSerial.h
index 9dc67c4..176abe1 100644
--- a/arduino/cores/arduino/HardwareSerial.h
+++ b/arduino/cores/arduino/HardwareSerial.h
@@ -32,6 +32,7 @@ class HardwareSerial : public Stream
 {
   private:
     ring_buffer *_rx_buffer;
+    ring_buffer *_tx_buffer;
     volatile uint8_t *_ubrrh;
     volatile uint8_t *_ubrrl;
     volatile uint8_t *_ucsra;
@@ -40,28 +41,29 @@ class HardwareSerial : public Stream
     uint8_t _rxen;
     uint8_t _txen;
     uint8_t _rxcie;
-    uint8_t _udre;
+    uint8_t _udrie;
     uint8_t _u2x;
   public:
-    HardwareSerial(ring_buffer *rx_buffer,
+    HardwareSerial(ring_buffer *rx_buffer, ring_buffer *tx_buffer,
       volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
       volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
       volatile uint8_t *udr,
-      uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udre, uint8_t u2x);
+      uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udrie, uint8_t u2x);
     void begin(unsigned long);
     void end();
     virtual int available(void);
     virtual int peek(void);
     virtual int read(void);
     virtual void flush(void);
-    virtual void write(uint8_t);
+    virtual size_t write(uint8_t);
     using Print::write; // pull in write(str) and write(buf, size) from Print
 };
 
 #if defined(UBRRH) || defined(UBRR0H)
   extern HardwareSerial Serial;
 #elif defined(USBCON)
-  #include "usb_api.h"
+  #include "USBAPI.h"
+//  extern HardwareSerial Serial_;  
 #endif
 #if defined(UBRR1H)
   extern HardwareSerial Serial1;
@@ -73,4 +75,6 @@ class HardwareSerial : public Stream
   extern HardwareSerial Serial3;
 #endif
 
+extern void serialEventRun(void) __attribute__((weak));
+
 #endif
diff --git a/arduino/cores/arduino/Print.cpp b/arduino/cores/arduino/Print.cpp
index fd68942..ff9b154 100755
--- a/arduino/cores/arduino/Print.cpp
+++ b/arduino/cores/arduino/Print.cpp
@@ -23,173 +23,213 @@
 #include <stdio.h>
 #include <string.h>
 #include <math.h>
-#include "wiring.h"
+#include "Arduino.h"
 
 #include "Print.h"
 
 // Public Methods //////////////////////////////////////////////////////////////
 
 /* default implementation: may be overridden */
-void Print::write(const char *str)
+size_t Print::write(const uint8_t *buffer, size_t size)
 {
-  while (*str)
-    write(*str++);
+  size_t n = 0;
+  while (size--) {
+    n += write(*buffer++);
+  }
+  return n;
 }
 
-/* default implementation: may be overridden */
-void Print::write(const uint8_t *buffer, size_t size)
+size_t Print::print(const __FlashStringHelper *ifsh)
 {
-  while (size--)
-    write(*buffer++);
+  const prog_char *p = (const prog_char *)ifsh;
+  size_t n = 0;
+  while (1) {
+    unsigned char c = pgm_read_byte(p++);
+    if (c == 0) break;
+    n += write(c);
+  }
+  return n;
 }
 
-void Print::print(const String &s)
+size_t Print::print(const String &s)
 {
-  for (unsigned int i = 0; i < s.length(); i++) {
-    write(s[i]);
+  size_t n = 0;
+  for (uint16_t i = 0; i < s.length(); i++) {
+    n += write(s[i]);
   }
+  return n;
 }
 
-void Print::print(const char str[])
+size_t Print::print(const char str[])
 {
-  write(str);
+  return write(str);
 }
 
-void Print::print(char c, int base)
+size_t Print::print(char c)
 {
-  print((long) c, base);
+  return write(c);
 }
 
-void Print::print(unsigned char b, int base)
+size_t Print::print(unsigned char b, int base)
 {
-  print((unsigned long) b, base);
+  return print((unsigned long) b, base);
 }
 
-void Print::print(int n, int base)
+size_t Print::print(int n, int base)
 {
-  print((long) n, base);
+  return print((long) n, base);
 }
 
-void Print::print(unsigned int n, int base)
+size_t Print::print(unsigned int n, int base)
 {
-  print((unsigned long) n, base);
+  return print((unsigned long) n, base);
 }
 
-void Print::print(long n, int base)
+size_t Print::print(long n, int base)
 {
   if (base == 0) {
-    write(n);
+    return write(n);
   } else if (base == 10) {
     if (n < 0) {
-      print('-');
+      int t = print('-');
       n = -n;
+      return printNumber(n, 10) + t;
     }
-    printNumber(n, 10);
+    return printNumber(n, 10);
   } else {
-    printNumber(n, base);
+    return printNumber(n, base);
   }
 }
 
-void Print::print(unsigned long n, int base)
+size_t Print::print(unsigned long n, int base)
 {
-  if (base == 0) write(n);
-  else printNumber(n, base);
+  if (base == 0) return write(n);
+  else return printNumber(n, base);
 }
 
-void Print::print(double n, int digits)
+size_t Print::print(double n, int digits)
 {
-  printFloat(n, digits);
+  return printFloat(n, digits);
 }
 
-void Print::println(void)
+size_t Print::println(const __FlashStringHelper *ifsh)
 {
-  print('\r');
-  print('\n');  
+  size_t n = print(ifsh);
+  n += println();
+  return n;
 }
 
-void Print::println(const String &s)
+size_t Print::print(const Printable& x)
 {
-  print(s);
-  println();
+  return x.printTo(*this);
 }
 
-void Print::println(const char c[])
+size_t Print::println(void)
 {
-  print(c);
-  println();
+  size_t n = print('\r');
+  n += print('\n');
+  return n;
 }
 
-void Print::println(char c, int base)
+size_t Print::println(const String &s)
 {
-  print(c, base);
-  println();
+  size_t n = print(s);
+  n += println();
+  return n;
 }
 
-void Print::println(unsigned char b, int base)
+size_t Print::println(const char c[])
 {
-  print(b, base);
-  println();
+  size_t n = print(c);
+  n += println();
+  return n;
 }
 
-void Print::println(int n, int base)
+size_t Print::println(char c)
 {
-  print(n, base);
-  println();
+  size_t n = print(c);
+  n += println();
+  return n;
 }
 
-void Print::println(unsigned int n, int base)
+size_t Print::println(unsigned char b, int base)
 {
-  print(n, base);
-  println();
+  size_t n = print(b, base);
+  n += println();
+  return n;
 }
 
-void Print::println(long n, int base)
+size_t Print::println(int num, int base)
 {
-  print(n, base);
-  println();
+  size_t n = print(num, base);
+  n += println();
+  return n;
 }
 
-void Print::println(unsigned long n, int base)
+size_t Print::println(unsigned int num, int base)
 {
-  print(n, base);
-  println();
+  size_t n = print(num, base);
+  n += println();
+  return n;
 }
 
-void Print::println(double n, int digits)
+size_t Print::println(long num, int base)
 {
-  print(n, digits);
-  println();
+  size_t n = print(num, base);
+  n += println();
+  return n;
 }
 
-// Private Methods /////////////////////////////////////////////////////////////
+size_t Print::println(unsigned long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
 
-void Print::printNumber(unsigned long n, uint8_t base)
+size_t Print::println(double num, int digits)
 {
-  unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars. 
-  unsigned long i = 0;
+  size_t n = print(num, digits);
+  n += println();
+  return n;
+}
 
-  if (n == 0) {
-    print('0');
-    return;
-  } 
+size_t Print::println(const Printable& x)
+{
+  size_t n = print(x);
+  n += println();
+  return n;
+}
 
-  while (n > 0) {
-    buf[i++] = n % base;
+// Private Methods /////////////////////////////////////////////////////////////
+
+size_t Print::printNumber(unsigned long n, uint8_t base) {
+  char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
+  char *str = &buf[sizeof(buf) - 1];
+
+  *str = '\0';
+
+  // prevent crash if called with base == 1
+  if (base < 2) base = 10;
+
+  do {
+    unsigned long m = n;
     n /= base;
-  }
+    char c = m - base * n;
+    *--str = c < 10 ? c + '0' : c + 'A' - 10;
+  } while(n);
 
-  for (; i > 0; i--)
-    print((char) (buf[i - 1] < 10 ?
-      '0' + buf[i - 1] :
-      'A' + buf[i - 1] - 10));
+  return write(str);
 }
 
-void Print::printFloat(double number, uint8_t digits) 
+size_t Print::printFloat(double number, uint8_t digits) 
 { 
+  size_t n = 0;
+  
   // Handle negative numbers
   if (number < 0.0)
   {
-     print('-');
+     n += print('-');
      number = -number;
   }
 
@@ -203,18 +243,21 @@ void Print::printFloat(double number, uint8_t digits)
   // Extract the integer part of the number and print it
   unsigned long int_part = (unsigned long)number;
   double remainder = number - (double)int_part;
-  print(int_part);
+  n += print(int_part);
 
   // Print the decimal point, but only if there are digits beyond
-  if (digits > 0)
-    print("."); 
+  if (digits > 0) {
+    n += print("."); 
+  }
 
   // Extract digits from the remainder one at a time
   while (digits-- > 0)
   {
     remainder *= 10.0;
     int toPrint = int(remainder);
-    print(toPrint);
+    n += print(toPrint);
     remainder -= toPrint; 
   } 
+  
+  return n;
 }
diff --git a/arduino/cores/arduino/WString.h b/arduino/cores/arduino/WString.h
index 56faf9a..d76d2a3 100644
--- a/arduino/cores/arduino/WString.h
+++ b/arduino/cores/arduino/WString.h
@@ -1,6 +1,8 @@
 /*
   WString.h - String library for Wiring & Arduino
+  ...mostly rewritten by Paul Stoffregen...
   Copyright (c) 2009-10 Hernando Barragan.  All right 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
@@ -17,96 +19,187 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#ifndef String_h
-#define String_h
+#ifndef String_class_h
+#define String_class_h
+#ifdef __cplusplus
 
-//#include "WProgram.h"
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
+#include <avr/pgmspace.h>
 
+// When compiling programs with this class, the following gcc parameters
+// dramatically increase performance and memory (RAM) efficiency, typically
+// with little or no increase in code size.
+//     -felide-constructors
+//     -std=c++0x
+
+class __FlashStringHelper;
+#define F(string_literal) (reinterpret_cast<__FlashStringHelper *>(PSTR(string_literal)))
+
+// An inherited class for holding the result of a concatenation.  These
+// result objects are assumed to be writable by subsequent concatenations.
+class StringSumHelper;
+
+// The string class
 class String
 {
-  public:
-    // constructors
-    String( const char *value = "" );
-    String( const String &value );
-    String( const char );
-    String( const unsigned char );
-    String( const int, const int base=10);
-    String( const unsigned int, const int base=10 );
-    String( const long, const int base=10 );
-    String( const unsigned long, const int base=10 );
-    ~String() { free(_buffer); _length = _capacity = 0;}     //added _length = _capacity = 0;
-
-    // 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;
-    unsigned char endsWith( const String &suffix ) const;
-    unsigned char equals( const String &anObject ) const;
-    unsigned char 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;
-    unsigned int length( ) const { return _length; }
-    void setCharAt(unsigned int index, const char ch);
-    unsigned char startsWith( const String &prefix ) const;
-    unsigned char 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;
-    void getBytes(unsigned char *buf, unsigned int bufsize);
-    void toCharArray(char *buf, unsigned int bufsize);
-    long toInt( );
-    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 minus one (for the '\0')
-    unsigned int _length;    // the String length (not counting the '\0')
-
-    void getBuffer(unsigned int maxStrLen);
-
-  private:
+	// use a function pointer to allow for "if (s)" without the
+	// complications of an operator bool(). for more information, see:
+	// http://www.artima.com/cppsource/safebool.html
+	typedef void (String::*StringIfHelperType)() const;
+	void StringIfHelper() const {}
 
-};
+public:
+	// constructors
+	// creates a copy of the initial value.
+	// if the initial value is null or invalid, or if memory allocation
+	// fails, the string will be marked as invalid (i.e. "if (s)" will
+	// be false).
+	String(const char *cstr = "");
+	String(const String &str);
+	#ifdef __GXX_EXPERIMENTAL_CXX0X__
+	String(String &&rval);
+	String(StringSumHelper &&rval);
+	#endif
+	explicit String(char c);
+	explicit String(unsigned char, unsigned char base=10);
+	explicit String(int, unsigned char base=10);
+	explicit String(unsigned int, unsigned char base=10);
+	explicit String(long, unsigned char base=10);
+	explicit String(unsigned long, unsigned char base=10);
+	~String(void);
 
-// allocate buffer space
-inline void String::getBuffer(unsigned int maxStrLen)
-{
-  _capacity = maxStrLen;
-  _buffer = (char *) malloc(_capacity + 1);
-  if (_buffer == NULL) _length = _capacity = 0;
-}
+	// memory management
+	// return true on success, false on failure (in which case, the string
+	// is left unchanged).  reserve(0), if successful, will validate an
+	// invalid string (i.e., "if (s)" will be true afterwards)
+	unsigned char reserve(unsigned int size);
+	inline unsigned int length(void) const {return len;}
 
-inline String operator+( String lhs, const String &rhs )
-{
-  return lhs += rhs;
-}
+	// creates a copy of the assigned value.  if the value is null or
+	// invalid, or if the memory allocation fails, the string will be 
+	// marked as invalid ("if (s)" will be false).
+	String & operator = (const String &rhs);
+	String & operator = (const char *cstr);
+	#ifdef __GXX_EXPERIMENTAL_CXX0X__
+	String & operator = (String &&rval);
+	String & operator = (StringSumHelper &&rval);
+	#endif
+
+	// concatenate (works w/ built-in types)
+	
+	// returns true on success, false on failure (in which case, the string
+	// is left unchanged).  if the argument is null or invalid, the 
+	// concatenation is considered unsucessful.  
+	unsigned char concat(const String &str);
+	unsigned char concat(const char *cstr);
+	unsigned char concat(char c);
+	unsigned char concat(unsigned char c);
+	unsigned char concat(int num);
+	unsigned char concat(unsigned int num);
+	unsigned char concat(long num);
+	unsigned char concat(unsigned long num);
+	
+	// if there's not enough memory for the concatenated value, the string
+	// will be left unchanged (but this isn't signalled in any way)
+	String & operator += (const String &rhs)	{concat(rhs); return (*this);}
+	String & operator += (const char *cstr)		{concat(cstr); return (*this);}
+	String & operator += (char c)			{concat(c); return (*this);}
+	String & operator += (unsigned char num)		{concat(num); return (*this);}
+	String & operator += (int num)			{concat(num); return (*this);}
+	String & operator += (unsigned int num)		{concat(num); return (*this);}
+	String & operator += (long num)			{concat(num); return (*this);}
+	String & operator += (unsigned long num)	{concat(num); return (*this);}
+
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, char c);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, int num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, long num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num);
+
+	// comparison (only works w/ Strings and "strings")
+	operator StringIfHelperType() const { return buffer ? &String::StringIfHelper : 0; }
+	int compareTo(const String &s) const;
+	unsigned char equals(const String &s) const;
+	unsigned char equals(const char *cstr) const;
+	unsigned char operator == (const String &rhs) const {return equals(rhs);}
+	unsigned char operator == (const char *cstr) const {return equals(cstr);}
+	unsigned char operator != (const String &rhs) const {return !equals(rhs);}
+	unsigned char operator != (const char *cstr) const {return !equals(cstr);}
+	unsigned char operator <  (const String &rhs) const;
+	unsigned char operator >  (const String &rhs) const;
+	unsigned char operator <= (const String &rhs) const;
+	unsigned char operator >= (const String &rhs) const;
+	unsigned char equalsIgnoreCase(const String &s) const;
+	unsigned char startsWith( const String &prefix) const;
+	unsigned char startsWith(const String &prefix, unsigned int offset) const;
+	unsigned char endsWith(const String &suffix) const;
 
+	// character acccess
+	char charAt(unsigned int index) const;
+	void setCharAt(unsigned int index, char c);
+	char operator [] (unsigned int index) const;
+	char& operator [] (unsigned int index);
+	void getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index=0) const;
+	void toCharArray(char *buf, unsigned int bufsize, unsigned int index=0) const
+		{getBytes((unsigned char *)buf, bufsize, index);}
+
+	// search
+	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;
+	String substring( unsigned int beginIndex ) const;
+	String substring( unsigned int beginIndex, unsigned int endIndex ) const;
+
+	// modification
+	void replace(char find, char replace);
+	void replace(const String& find, const String& replace);
+	void toLowerCase(void);
+	void toUpperCase(void);
+	void trim(void);
+
+	// parsing/conversion
+	long toInt(void) const;
+
+protected:
+	char *buffer;	        // the actual char array
+	unsigned int capacity;  // the array length minus one (for the '\0')
+	unsigned int len;       // the String length (not counting the '\0')
+	unsigned char flags;    // unused, for future features
+protected:
+	void init(void);
+	void invalidate(void);
+	unsigned char changeBuffer(unsigned int maxStrLen);
+	unsigned char concat(const char *cstr, unsigned int length);
+
+	// copy and move
+	String & copy(const char *cstr, unsigned int length);
+	#ifdef __GXX_EXPERIMENTAL_CXX0X__
+	void move(String &rhs);
+	#endif
+};
+
+class StringSumHelper : public String
+{
+public:
+	StringSumHelper(const String &s) : String(s) {}
+	StringSumHelper(const char *p) : String(p) {}
+	StringSumHelper(char c) : String(c) {}
+	StringSumHelper(unsigned char num) : String(num) {}
+	StringSumHelper(int num) : String(num) {}
+	StringSumHelper(unsigned int num) : String(num) {}
+	StringSumHelper(long num) : String(num) {}
+	StringSumHelper(unsigned long num) : String(num) {}
+};
 
-#endif
+#endif  // __cplusplus
+#endif  // String_class_h



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