BAP Online Manuals : Library Reference : Library by Name : parse
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6.2.95. parse

parses a string

SYNOPSIS

INCLUDE 'iolib.h'
parse(Str,Term,VarList)

SYNTAX

parse(Str,Term,VarList) (i,o,o)

ARGUMENTS

string(Str) (i) string to be parsed
void(Term) (o) term that was the result of parsing
void(VarList) (o) Term containing the variables of the term.

DESCRIPTION

Parses the string Str using the current operator declarations. Fails if no valid term is encountered or it does not match Term. Any Variables contained in Term are listed with their name in VarList in the following form:
var('A',A),var('B',B)

EXAMPLE

parse("3+A",Term,[var(Name,Value)]),
write(Name,"="),
read(Value),
Sum is Term,
write(Sum),nl.

ERRORS

No runtime errors.

LAYERS

prolog-process, client-server, object

RELATED PREDICATES

get , readln , readchar , readdevice

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BAP Online Manuals : Library Reference : Library by Name : parse
Previous: openwrite
Next: process_name