PPWIZARD is a free preprocessor for HTML, REXX, Visual Basic or any text files.
This variable forces following text onto the next line. (This is true even if it is the first thing on a line, which will result in a blank line in the output. If you don't want that, use <?NewLine?>.) It can be useful if you need to pass the generated HTML through other tools which can't handle long lines. The code would typically be used in macros.
Note that this variable is the only way to ensure that the line is terminated correctly as the "/CrLf" switch (and others) may vary the appropriate codes that need to be generated.
This symbol actually expands to a <?xXX> code and not the 'newline' character directly. In some cases this may not be what you wish and you should either define your own alternative or use some other method (#define may be suitable in a lot of cases), depending on your need.
This is a Standard Definition which always exists (you don't need to #define it). Note that you can create your own variations or completely new ones (see the examples).