How to prevent pdflatex to stop working due to an invalid input file?

Question

I want to create a LaTeX editor.

Behind the scene, the editor will call pdflatex.exe.

I need a method to prevent pdflatex.exe to stop working because of an invalid input file.

Is there anybody here knows the protocols, rules, conventions used by pdflatex.exe ?

Note: I created the question in StackOverflow as well.

Edit

Using suggestions from @Martin and @arx (a SO member), my actual problem is solved. THANK you!

Answer 1

Normally you call (pdf)latex with -interaction=nonstopmode (or what the MikTeX equivalent is). Then it will not stop on errors. Your editor can detect compile errors by watching the return value of the pdflatex subprocess and by locking on the "console" or log output.

Another way would be to look if pdflatex wants to read from standard input, i.e. waits for user input.