General ⇒ Stop LaTeX compile with a command?

[fenn]

This is my first post, and forgive me if I'm asking something that's already been answered.

Is there a way to stop the compile process through the use of a command? Something like:

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 \exception{This is a user-set exception.  Compile halted.}

So when performing the compile process, the specified text string is displayed to the console, and the compile process aborts?

The reason I want to do something like this is I want to have a conditional statement that checks a user-defined parameter. If the parameter is outside a desired range, I want the user to be informed that they made a bad choice and should change it.

Thanks in advance.

[daleif]

it should not about, it should stop on the error, if it just aborts the user will never know.

Use for example \PackageError{packagename}{error message}{help text}, for more info see

texdoc clsguide

[fenn]

Actually, I found exactly what I'm looking for:

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\errmessage{This is an error message!}

Thanks though.

[daleif]

well, pros and cons, using \PackageError or \ClassError the user will know which package or class caused the error, and may get some help as to how they should proceed.