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Arduino/build/shared/examples/08.Strings/StringReplace/StringReplace.ino

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/*
String replace()
Examples of how to replace characters or substrings of a string
created 27 July 2010
modified 2 Apr 2012
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by Tom Igoe
http://arduino.cc/en/Tutorial/StringReplace
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This example code is in the public domain.
*/
void setup() {
// Open serial communications and wait for port to open:
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Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
// send an intro:
Serial.println("\n\nString replace:\n");
Serial.println();
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}
void loop() {
String stringOne = "<html><head><body>";
Serial.println(stringOne);
// replace() changes all instances of one substring with another:
// first, make a copy of th original string:
String stringTwo = stringOne;
// then perform the replacements:
stringTwo.replace("<", "</");
// print the original:
Serial.println("Original string: " + stringOne);
// and print the modified string:
Serial.println("Modified string: " + stringTwo);
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// you can also use replace() on single characters:
String normalString = "bookkeeper";
Serial.println("normal: " + normalString);
String leetString = normalString;
leetString.replace('o', '0');
leetString.replace('e', '3');
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Serial.println("l33tspeak: " + leetString);
// do nothing while true:
while(true);
}