In the manual section for strings ( OpenSCAD_User_Manual/General#Strings ), I
suspect the version number 2013.02.28 is wrong. It implies that a change was
made after 2011.04, which I doubt since the current version 2015.03 has the
same output as that shown for 2011.04.
The manual has the following:
Note: This behavior is new since OpenSCAD-2011.04. You can upgrade old files
using the following sed command: sed 's/\/\\/' non-escaped.scad >
escaped.scad
Example:
echo("The quick brown fox \tjumps "over" the lazy dog.\rThe quick brown
fox.\nThe \lazy\ dog.");
Output:
ECHO: "The quick brown fox jumps "over" the lazy dog.
The quick brown fox.
The \lazy\ dog."
Output: in OpenSCAD version 2013.02.28
ECHO: "The quick brown fox \tjumps "over" the lazy dog.
The quick brown fox.\nThe \lazy\ dog."
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