The @Formula code is rather short. First we by specify 2 arrays: one with letters and another with corresponding morse code. Then we simply use @ReplaceSubstring function to replace the letters in the input text to corresponding elements in the morse array. As the number of elements in the 2 arrays are the same, @ReplaceSubstring function applies 1-to-1 element replacement.
letters:=" ":"A":"B":"C":"D":"E":"F":"G":"H":"I":"J":"K":"L":"M":"N":"O":"P":"Q":"R":"S":"T":"U":"V":"W":"X":"Y":"Z":"1":"2":"3":"4":"5":"6":"7":"8":"9":"0";
morse:=" ":".-":"-...":"-.-.":"-..":".":"..-.":"--.":"....":"..":".---":"-.-":".-..":"--":"-.":"---":".--.":"--.-":".-.":"...":"-":"..-":"...-":".--":"-..-":"-.--":"--..":".----":"..---":"...--":"....-":".....":"-....":"--...":"---..":"----.":"-----";
plaintext:="Morse code";
encoded:=@ReplaceSubstring(@UpperCase(plaintext);letters;morse+" ");
encoded
To reverse the process and convert from morse code to plain text following code can be used:
letters:="A":"B":"C":"D":"E":"F":"G":"H":"I":"J":"K":"L":"M":"N":"O":"P":"Q":"R":"S":"T":"U":"V":"W":"X":"Y":"Z":"1":"2":"3":"4":"5":"6":"7":"8":"9":"0";
morse:=".-":"-...":"-.-.":"-..":".":"..-.":"--.":"....":"..":".---":"-.-":".-..":"--":"-.":"---":".--.":"--.-":".-.":"...":"-":"..-":"...-":".--":"-..-":"-.--":"--..":".----":"..---":"...--":"....-":".....":"-....":"--...":"---..":"----.":"-----";
encoded:="-- --- .-. ... . -.-. --- -.. . ";
plain:=@ReplaceSubstring(@Implode(@Replace(@Explode(@ReplaceSubstring(encoded;" ";" _ ");" ");morse;letters);"");"_";" ");
plain
I also implemented same morse formula as a function in Botstation Bot Framework, where user passes a text string to Sametime bot and receives the morse code as output. Here is a picture and a live example.
Bot command syntax:
morse HERE IS TEXT TO ENCODE
demorse .. .-.. --- ...- . ... .- -- . - .. -- .
Morse Bot online example: http://www.botstation.com/sametime/stwidget_morse.php
Tags: Lotus Domino Sametime
2 comments:
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