Some languages allow paired comments to be nested. This specifies the string that is considered to be a language keyword. Normally this is used for those functions that are builtin into the language, but can be any identifier. Headers are lines within a file that begin with a particular string and usually identify different parts of the file. They are similar to labels.
Labels are lines within a file that end with a particular string.
They are similar to headers. This section specifies items that are checked for after all other syntax checking has been completed. This can be useful if you want to allow user-defined datatypes or other code to be displayed in different colours. THE includes a number of builtin syntax highlighting parser s. This enables you to configure THE with the default parser s that are more applicable for you.