DEBUGGING AND ERROR HANDLING FUNCTIONS

ADD A FUNCTION TO THE TRACE LIST

fsubr

• <sym> the function(s) to add (quoted)
• returns the trace list

fsubr. If no functions given, all functions are removed from the trace list.

• <sym> the function(s) to remove (quoted)
• returns the trace list

Note that the definition of this function has changed from 2.1e and earlier so to match Common Lisp.

• <emsg> the error message string, which is processed by FORMAT
• <arg> optional argument{s} for FORMAT
• returns never returns

Note that the definition of this function has changed from 2.1e and earlier so to match Common Lisp.

• <cmsg> the continue message string, which is processed by FORMAT
• <emsg> the error message string, which is processed by FORMAT
• <arg> optional argument(s) for both FORMATs (arguments are useable twice)
• returns NIL when continued from the break loop

Note that the definition of this function has changed from 2.1e and earlier so to match Common Lisp.

• <bmsg> the break message string, which is processed by FORMAT
• <arg> optional argument(s) for FORMAT
• returns NIL when continued from the break loop

• returns never returns

Runs the function in variable *top-level-loop* (ususally TOP-LEVEL-LOOP)

• returns never returns

• returns never returns

fsubr

• <expr> the expression to execute
• <pflag> flag to control printing of the error message (default t)
• returns the value of the last expression consed with NIL or NIL on error

• <n> the number of levels (defaults to all levels)
• returns NIL

• <expr> the expression to evaluate. <ehook> is not used at the top level.
• <ehook> the value for *evalhook*
• <ahook> the value for *applyhook*
• <env> the environment (default is NIL). The format is a dotted pair of value (car) and function (cdr) binding lists. Each binding list is a list of level binding a-lists, with the innermost a-list first. The level binding a-list associates the bound symbol with its value.
• returns the result of evaluating the expression

• <fun> The function closure. <ahook> is not used for this function application.
• <arglist> The list of arguments.
• <ehook> the value for *evalhook*
• <ahook> the value for *applyhook*
• returns the result of applying <fun> to <arglist>

DISABLE DEBUG BREAKS

Defined in init.lsp