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This package defines IO predicates that read from, or write to, a list of character codes (a string). There are also predicates to open a stream referring to a list of character codes. The stream may be used with general Stream IO predicates.
To load the package, enter the query
| ?- use_module(library(charsio)).
format/3
(see section Input and Output of Terms). Chars is unified with the
list, alternatively S0 and S are unified with the head and
tail of the list, respectively.
format_to_chars/(3-4)
. Writes Term into a
list of character codes using write/2
(see section Input and Output of Terms).
Chars is unified with the list, alternatively S0 and S
are unified with the head and tail of the list, respectively.
format_to_chars/(3-4)
. Converts Atom to the
list of characters comprising its name. Chars is unified with the
list, alternatively S0 and S are unified with the head and
tail of the list, respectively.
format_to_chars/(3-4)
. Converts Number to the
list of characters comprising its name. Chars is unified with the
list, alternatively S0 and S are unified with the head and
tail of the list, respectively.
read/2
. The Chars
must, as usual, be terminated by a full-stop, i.e. a .,
possibly followed by layout-text.
close/1
. The list is copied
to an internal buffer when the stream is opened and therefore be a
ground list of character codes at that point.
current_output
stream set to a new
stream. This stream writes to an internal buffer which is, after the
successful execution of Goal, converted to a list of character
codes. Chars is unified with the list, alternatively S0 and
S are unified with the head and tail of the list, respectively.
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