(guile.info.gz) Evaluator Behaviour
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28.7 Evaluator Behaviour
========================
The behaviour of Guile's evaluator can be modified by manipulating the
evaluator options. For more information about options, User
level options interfaces. If you want to know which evaluator
options are available, Evaluator options.
-- Scheme Procedure: eval-options [setting]
Display the current settings of the evaluator options. If SETTING
is omitted, only a short form of the current evaluator options is
printed. Otherwise, SETTING should be one of the following
symbols:
`help'
Display the complete option settings.
`full'
Like `help', but also print programmer options.
-- Scheme Procedure: eval-enable option-name
-- Scheme Procedure: eval-disable option-name
-- Scheme Procedure: eval-set! option-name value
Modify the evaluator options. `eval-enable' should be used with
boolean options and switches them on, `eval-disable' switches them
off. `eval-set!' can be used to set an option to a specific value.
-- Scheme Procedure: eval-options-interface [setting]
-- C Function: scm_eval_options_interface (setting)
Option interface for the evaluation options. Instead of using this
procedure directly, use the procedures `eval-enable',
`eval-disable', `eval-set!' and `eval-options'.
-- Scheme Procedure: traps [setting]
Display the current settings of the evaluator traps options. If
SETTING is omitted, only a short form of the current evaluator
traps options is printed. Otherwise, SETTING should be one of the
following symbols:
`help'
Display the complete option settings.
`full'
Like `help', but also print programmer options.
-- Scheme Procedure: trap-enable option-name
-- Scheme Procedure: trap-disable option-name
-- Scheme Procedure: trap-set! option-name value
Modify the evaluator options. `trap-enable' should be used with
boolean options and switches them on, `trap-disable' switches them
off. `trap-set!' can be used to set an option to a specific value.
-- Scheme Procedure: evaluator-traps-interface [setting]
-- C Function: scm_evaluator_traps (setting)
Option interface for the evaluator trap options.
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