.. index:: single: base64 .. _base64/0:

.. rst-class:: right

object

base64

Base64 parser and generator.

| Availability: | logtalk_load(base64(loader))

| Author: Paulo Moura | Version: 1:0:1 | Date: 2026-06-14

| Compilation flags: | static, context_switching_calls

| Uses: | :ref:`reader <reader/0>`

| Remarks: | (none)

| Inherited public predicates: | (none)

.. contents:: :local: :backlinks: top

Public predicates

.. index:: parse/2 .. _base64/0::parse/2:

parse/2 ^^^^^^^^^^^

Parses the Base64 data from the given source (atom(Atom), chars(List), codes(List), stream(Stream), or file(Path) into a list of bytes.

| Compilation flags: | static

| Template: | parse(Source,Bytes) | Mode and number of proofs: | parse(++compound,--list(byte)) - one_or_error

| Exceptions: | Source is a variable: | instantiation_error | Source is neither a variable nor a valid Base64 source term: | domain_error(base64_source,Source) | Source contains Base64 data with characters outside the Base64 alphabet: | representation_error(base64)

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.. index:: generate/2 .. _base64/0::generate/2:

generate/2 ^^^^^^^^^^^^^^

Generates Base64 in the representation specified in the first argument (atom(Atom), chars(List), codes(List), stream(Stream), or file(Path) for the list of bytes in the second argument.

| Compilation flags: | static

| Template: | generate(Sink,Bytes) | Mode and number of proofs: | generate(+compound,+list(byte)) - one_or_error

| Exceptions: | Sink is a variable: | instantiation_error | Sink is neither a variable nor a valid Base64 sink term: | domain_error(base64_sink,Sink)

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Protected predicates

(no local declarations; see entity ancestors if any)

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)