On Sun, 2 Feb 2014, William F Hammond wrote: [...] In the new track with its pertinent user-level diagnostics one could have the LaTeX program print a diagnostic and then exit, forcing the user to correct the problem, one problem at a time. sadly, this would discourage me, and probably anyone else involved in a production setting, from using the new track if it is set up unalterably this way. it's often possible to make temporary adjustments and proceed through an entire file, accumulating all errors and warnings to be handled in a single manual pass. not always, but often enough that it's worth the effort to make an on-the-spot decision whether to cancel or proceed. -- bb