trace

Help Contents Workspace Management Workspace Control trace
unburyname traceall

trace contentslist

command. Marks the named items for tracing. A message is printed whenever a traced procedure is invoked, giving the actual input values, and whenever a traced procedure STOPs or OUTPUTs. A message is printed whenever a new value is assigned to a traced variable using make. A message is printed whenever a new property is given to a traced property list using PPROP.

Examples: 

a=1234
trace namelist "a
a=4321;		Make "a 4321

load "tree.lg
trace "tree
tree

The second example will print a quite long transcript of tree invokations.

See also:

Examples:

References:

unburyname traceall