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LaTeXML::Common::ErrorUser Contributed Perl DocumentaLaTeXML::Common::Error(3)

       "LaTeXML::Common::Error"	- Error	and Progress Reporting and Logging

       "LaTeXML::Common::Error"	does some simple stack analysis	to generate
       more informative, readable, error messages for LaTeXML.	Its routines
       are used	by the error reporting methods from LaTeXML::Global, namely
       "Warn", "Error" and "Fatal".

   Error Reporting
       The Error reporting functions all take a	similar	set of arguments, the
       differences are in the implied severity of the situation, and in	the
       amount of detail	that will be reported.

       The $category is	a string naming	a broad	category of errors, such as
       "undefined". The	set is open-ended, but see the manual for a list of
       recognized categories.  $object is the object whose presence or lack
       caused the problem.

       $where indicates	where the problem occurred; passs in the $gullet or
       $stomach	if the problem occurred	during expansion or digestion; pass in
       a document node if it occurred there.  A	string will be used as is; if
       an undefined value is used, the error handler will try to guess.

       The $message should be a	somewhat concise, but readable,	explanation of
       the problem, but	ought to not refer to the document or any "incident
       specific" information, so as to support indexing	in build systems.
       @details	provides additional lines of information that may be indident

	   Signals an fatal error, printing $message along with	some context.
	   In verbose mode a stack trace is printed.

	   Signals an error, printing $message along with some context.	 If in
	   strict mode,	this is	the same as Fatal().  Otherwise, it attempts
	   to continue processing..

	   Prints a warning message along with a short indicator of the	input
	   context, unless verbosity is	quiet.

	   Prints an informational message along with a	short indicator	of the
	   input context, unless verbosity is quiet.

	   Prints $message unless the verbosity	level below 0.	Typically just
	   a short mark	to indicate motion, but	can be longer; provide your
	   own newlines, if needed.

	   Like	"NoteProgress",	but for	noiser progress, only prints when
	   verbosity >=	1.

   Internal Functions
       No user serviceable parts inside.  These	symbols	are not	exported.

       "$string	=
	   Constructs an error or warning message based	on the current stack
	   and the current location in the document.  $typ is a	short string
	   characterizing the type of message, such as "Error".	 $msg is the
	   error message itself. If $lng is true, will generate	a more verbose
	   message; this also uses the VERBOSITY set in	the $STATE.  Longer
	   messages will show a	trace of the objects invoked on	the stack,
	   @more are additional	strings	to include in the message.

       "$string	= LaTeXML::Common::Error::stacktrace;"
	   Return a formatted string showing a trace of	the stackframes	up
	   until this function was invoked.

       "@objects = LaTeXML::Common::Error::objectStack;"
	   Return a list of objects invoked on the stack.  This	procedure only
	   considers those stackframes which involve methods, and the objects
	   are those (unique) objects that the method was called on.

       Bruce Miller <>

       Public domain software, produced	as part	of work	done by	the United
       States Government & not subject to copyright in the US.

perl v5.32.1			  2020-10-29	     LaTeXML::Common::Error(3)


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