/[guile]/guile/guile-core/doc/ref/scheme-debug.texi
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revision 1.1.2.3 by ttn, Tue Jan 8 09:22:37 2002 UTC revision 1.1.2.4 by ossau, Tue Mar 12 20:51:25 2002 UTC
# Line 139  Create a new stack. If @var{obj} is @cod Line 139  Create a new stack. If @var{obj} is @cod
139  evaluation stack is used for creating the stack frames,  evaluation stack is used for creating the stack frames,
140  otherwise the frames are taken from @var{obj} (which must be  otherwise the frames are taken from @var{obj} (which must be
141  either a debug object or a continuation).  either a debug object or a continuation).
142  @var{args} must be a list of integers and specifies how the  
143  resulting stack will be narrowed.  @var{args} should be a list containing any combination of
144    integer, procedure and @code{#t} values.
145    
146    These values specify various ways of cutting away uninteresting
147    stack frames from the top and bottom of the stack that
148    @code{make-stack} returns.  They come in pairs like this:
149    @code{(@var{inner_cut_1} @var{outer_cut_1} @var{inner_cut_2}
150    @var{outer_cut_2} @dots{})}.
151    
152    Each @var{inner_cut_N} can be @code{#t}, an integer, or a
153    procedure.  @code{#t} means to cut away all frames up to but
154    excluding the first user module frame.  An integer means to cut
155    away exactly that number of frames.  A procedure means to cut
156    away all frames up to but excluding the application frame whose
157    procedure matches the specified one.
158    
159    Each @var{outer_cut_N} can be an integer or a procedure.  An
160    integer means to cut away that number of frames.  A procedure
161    means to cut away frames down to but excluding the application
162    frame whose procedure matches the specified one.
163    
164    If the @var{outer_cut_N} of the last pair is missing, it is
165    taken as 0.
166  @end deffn  @end deffn
167    
168  @deffn primitive stack-id stack  @deffn primitive stack-id stack

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