| /* | |
| String replace() | |
| Examples of how to replace characters or substrings of a String | |
| created 27 Jul 2010 | |
| modified 2 Apr 2012 | |
| by Tom Igoe | |
| This example code is in the public domain. | |
| https://www.arduino.cc/en/Tutorial/BuiltInExamples/StringReplace | |
| */ | |
| void setup() { | |
| // Open serial communications and wait for port to open: | |
| Serial.begin(9600); | |
| while (!Serial) { | |
| ; // wait for serial port to connect. Needed for native USB port only | |
| } | |
| // send an intro: | |
| Serial.println("\n\nString replace:\n"); | |
| Serial.println(); | |
| } | |
| void loop() { | |
| String stringOne = "<html><head><body>"; | |
| Serial.println(stringOne); | |
| // replace() changes all instances of one substring with another: | |
| // first, make a copy of the 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); | |
| // 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'); | |
| Serial.println("l33tspeak: " + leetString); | |
| // do nothing while true: | |
| while (true); | |
| } | |