protocol

term_io_protocol

Predicates for term input/output from/to atom, chars, and codes. The predicates are declared as synchronized when the library is compiled using a backend supporting threads.

Availability:
logtalk_load(term_io(loader))
Author: Paulo Moura
Version: 1:3:0
Date: 2021-10-04
Compilation flags:
static
Dependencies:
(none)
Remarks:

  • Portability notes: To keep calls to these library predicates portable, use only standard read/write options and specify output formats using atoms.

Inherited public predicates:
(none)

Public predicates

read_term_from_atom/3

Reads a term from an atom using the given read options. A period at the end of the atom is optional. Valid options are those supported by the standard read_term/3 predicate.

Compilation flags:
static, synchronized
Template:
read_term_from_atom(Atom,Term,Options)
Mode and number of proofs:
read_term_from_atom(+atom,-term,+list(read_option)) - one_or_error

read_from_atom/2

Reads a term from an atom using default read options. Shorthand for read_term_from_atom(Atom,Term,[]). A period at the end of the atom is optional.

Compilation flags:
static
Template:
read_from_atom(Atom,Term)
Mode and number of proofs:
read_from_atom(+atom,-term) - one_or_error

read_term_from_chars/3

Reads a term from a list of characters using the given read options. A period at the end of the list is optional. Valid options are those supported by the standard read_term/3 predicate.

Compilation flags:
static, synchronized
Template:
read_term_from_chars(Chars,Term,Options)
Mode and number of proofs:
read_term_from_chars(+list(character),-term,+list(read_option)) - one_or_error

read_term_from_chars/4

Reads a term from a list of characters using the given read options, also returning the remaining characters. A period at the end of the term is required. Valid options are those supported by the standard read_term/3 predicate.

Compilation flags:
static
Template:
read_term_from_chars(Chars,Term,Tail,Options)
Mode and number of proofs:
read_term_from_chars(+list(character),-term,-list(character),+list(read_option)) - one_or_error

read_from_chars/2

Reads a term from a list of characters using default read options. Shorthand for read_term_from_chars(Chars,Term,[]). A period at the end of the list is optional.

Compilation flags:
static
Template:
read_from_chars(Chars,Term)
Mode and number of proofs:
read_from_chars(+list(character),-term) - one_or_error

read_term_from_codes/3

Reads a term from a list of character codes using the given read options. A period at the end of the list is optional. Valid options are those supported by the standard read_term/3 predicate.

Compilation flags:
static, synchronized
Template:
read_term_from_codes(Codes,Term,Options)
Mode and number of proofs:
read_term_from_codes(+list(character_code),-term,+list(read_option)) - one_or_error

read_term_from_codes/4

Reads a term from a list of character codes using the given read options, also returning the remaining character codes. A period at the end of the term is required. Valid options are those supported by the standard read_term/3 predicate.

Compilation flags:
static
Template:
read_term_from_codes(Codes,Term,Tail,Options)
Mode and number of proofs:
read_term_from_codes(+list(character_code),-term,-list(character_code),+list(read_option)) - one_or_error

read_from_codes/2

Reads a term from a list of character codes using default read options. Shorthand for read_term_from_codes(Codes,Term,[]). A period at the end of the list is optional.

Compilation flags:
static
Template:
read_from_codes(Codes,Term)
Mode and number of proofs:
read_from_codes(+list(character_code),-term) - one_or_error

write_term_to_atom/3

Writes a term to an atom using the given write options. Valid options are those supported by the standard write_term/3 predicate.

Compilation flags:
static, synchronized
Template:
write_term_to_atom(Term,Atom,Options)
Mode and number of proofs:
write_term_to_atom(@term,-atom,+list(write_option)) - one

write_to_atom/2

Writes a term to an atom using default write options. Shorthand for write_term_to_atom(Term,Atom,[]).

Compilation flags:
static
Template:
write_to_atom(Term,Atom)
Mode and number of proofs:
write_to_atom(@term,-atom) - one

write_term_to_chars/3

Writes a term to a list of characters using the given write options. Shorthand for write_term_to_chars(Term,Chars,[],Options). Valid options are those supported by the standard write_term/3 predicate.

Compilation flags:
static
Template:
write_term_to_chars(Term,Chars,Options)
Mode and number of proofs:
write_term_to_chars(@term,-list(character),+list(write_option)) - one

write_term_to_chars/4

Writes a term to a list of characters with the given tail using the given write options. Valid options are those supported by the standard write_term/3 predicate.

Compilation flags:
static, synchronized
Template:
write_term_to_chars(Term,Chars,Tail,Options)
Mode and number of proofs:
write_term_to_chars(@term,-list(character),@term,+list(write_option)) - one

write_to_chars/2

Writes a term to a list of characters using default write options. Shorthand for write_term_to_chars(Term,Chars,[],[]).

Compilation flags:
static
Template:
write_to_chars(Term,Chars)
Mode and number of proofs:
write_to_chars(@term,-list(character)) - one

write_term_to_codes/3

Writes a term to a list of character codes using the given write options. Shorthand for write_term_to_codes(Term,Codes,[],Options). Valid options are those supported by the standard write_term/3 predicate.

Compilation flags:
static
Template:
write_term_to_codes(Term,Codes,Options)
Mode and number of proofs:
write_term_to_codes(@term,-list(character_code),+list(write_option)) - one

write_term_to_codes/4

Writes a term to a list of character codes with the given tail using the given write options. Valid options are those supported by the standard write_term/3 predicate.

Compilation flags:
static, synchronized
Template:
write_term_to_codes(Term,Codes,Tail,Options)
Mode and number of proofs:
write_term_to_codes(@term,-list(character_code),@term,+list(write_option)) - one

write_to_codes/2

Writes a term to a list of character codes using default write options. Shorthand for write_term_to_chars(Term,Codes,[],[]).

Compilation flags:
static
Template:
write_to_codes(Term,Codes)
Mode and number of proofs:
write_to_codes(@term,-list(character_code)) - one

format_to_atom/3

Writes a list of arguments to an atom using the given format (specified as in the de facto standard format/2 predicate).

Compilation flags:
static, synchronized
Template:
format_to_atom(Format,Arguments,Atom)
Mode and number of proofs:
format_to_atom(@atom,+list(term),-atom) - one

format_to_chars/3

Writes a list of arguments to a list of characters using the given format (specified as in the de facto standard format/2 predicate). Shorthand for format_to_chars(Format,Arguments,Chars,[]).

Compilation flags:
static
Template:
format_to_chars(Format,Arguments,Chars)
Mode and number of proofs:
format_to_chars(@term,+list(term),-list(character)) - one

format_to_chars/4

Writes a term to a list of characters with the given tail using the given format (specified as in the de facto standard format/2 predicate).

Compilation flags:
static, synchronized
Template:
format_to_chars(Format,Arguments,Chars,Tail)
Mode and number of proofs:
format_to_chars(@term,+list(term),-list(character),@term) - one

format_to_codes/3

Writes a list of arguments to a list of character codes using the given format (specified as in the de facto standard format/2 predicate). Shorthand for format_to_codes(Format,Arguments,Codes,[]).

Compilation flags:
static
Template:
format_to_codes(Format,Arguments,Codes)
Mode and number of proofs:
format_to_codes(@term,+list(term),-list(character_code)) - one

format_to_codes/4

Writes a list of arguments to a list of character codes with the given tail using the given format (specified as in the de facto standard format/2 predicate).

Compilation flags:
static, synchronized
Template:
format_to_codes(Format,Arguments,Codes,Tail)
Mode and number of proofs:
format_to_codes(@term,+list(term),-list(character_code),@term) - one

with_output_to/2

Calls a goal deterministically with output to the given format: atom(Atom), chars(Chars), chars(Chars,Tail), codes(Codes), or codes(Codes,Tail).

Compilation flags:
static, synchronized
Template:
with_output_to(Output,Goal)
Meta-predicate template:
with_output_to(*,0)
Mode and number of proofs:
with_output_to(+compound,+callable) - zero_or_one

Protected predicates

(none)

Private predicates

(none)

Operators

(none)