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src/lustre@element.erl

-module(lustre@element).
-compile([no_auto_import, nowarn_unused_vars]).
-export([element/3, namespaced/4, text/1, map/2, to_string_builder/1, to_string/1]).
-export_type([element/1]).
-opaque element(FMM) :: {text, binary()} |
{element,
binary(),
list(lustre@attribute:attribute(FMM)),
list(element(FMM))} |
{element_ns,
binary(),
list(lustre@attribute:attribute(FMM)),
list(element(FMM)),
binary()}.
-spec element(
binary(),
list(lustre@attribute:attribute(FMN)),
list(element(FMN))
) -> element(FMN).
element(Tag, Attrs, Children) ->
{element, Tag, Attrs, Children}.
-spec namespaced(
binary(),
binary(),
list(lustre@attribute:attribute(FMT)),
list(element(FMT))
) -> element(FMT).
namespaced(Namespace, Tag, Attrs, Children) ->
{element_ns, Tag, Attrs, Children, Namespace}.
-spec text(binary()) -> element(any()).
text(Content) ->
{text, Content}.
-spec escape(binary(), binary()) -> binary().
escape(Escaped, Content) ->
case gleam@string:pop_grapheme(Content) of
{ok, {<<"<"/utf8>>, Xs}} ->
escape(<<Escaped/binary, "&lt;"/utf8>>, Xs);
{ok, {<<">"/utf8>>, Xs@1}} ->
escape(<<Escaped/binary, "&gt;"/utf8>>, Xs@1);
{ok, {<<"&"/utf8>>, Xs@2}} ->
escape(<<Escaped/binary, "&amp;"/utf8>>, Xs@2);
{ok, {<<"\""/utf8>>, Xs@3}} ->
escape(<<Escaped/binary, "&quot;"/utf8>>, Xs@3);
{ok, {<<"'"/utf8>>, Xs@4}} ->
escape(<<Escaped/binary, "&#x27;"/utf8>>, Xs@4);
{ok, {X, Xs@5}} ->
escape(<<Escaped/binary, X/binary>>, Xs@5);
{error, _} ->
<<Escaped/binary, Content/binary>>
end.
-spec map(element(FNB), fun((FNB) -> FND)) -> element(FND).
map(Element, F) ->
case Element of
{text, Content} ->
{text, Content};
{element, Tag, Attrs, Children} ->
{element,
Tag,
gleam@list:map(
Attrs,
fun(_capture) -> lustre@attribute:map(_capture, F) end
),
gleam@list:map(
Children,
fun(_capture@1) -> map(_capture@1, F) end
)};
{element_ns, Tag@1, Attrs@1, Children@1, Namespace} ->
{element_ns,
Tag@1,
gleam@list:map(
Attrs@1,
fun(_capture@2) -> lustre@attribute:map(_capture@2, F) end
),
gleam@list:map(
Children@1,
fun(_capture@3) -> map(_capture@3, F) end
),
Namespace}
end.
-spec attrs_to_string_builder(
gleam@string_builder:string_builder(),
list(lustre@attribute:attribute(any()))
) -> gleam@string_builder:string_builder().
attrs_to_string_builder(Html, Attrs) ->
gleam@list:fold(
Attrs,
Html,
fun(Html@1, Attr) ->
gleam@string_builder:append_builder(
Html@1,
lustre@attribute:to_string_builder(Attr)
)
end
).
-spec children_to_string_builder(
gleam@string_builder:string_builder(),
list(element(any()))
) -> gleam@string_builder:string_builder().
children_to_string_builder(Html, Children) ->
gleam@list:fold(
Children,
Html,
fun(Html@1, Child) ->
gleam@string_builder:append_builder(
Html@1,
to_string_builder(Child)
)
end
).
-spec to_string_builder(element(any())) -> gleam@string_builder:string_builder().
to_string_builder(Element) ->
case Element of
{text, Content} ->
gleam@string_builder:from_string(escape(<<""/utf8>>, Content));
{element, Tag, Attrs, Children} ->
_pipe = gleam@string_builder:from_string(<<"<"/utf8, Tag/binary>>),
_pipe@1 = attrs_to_string_builder(_pipe, Attrs),
_pipe@2 = gleam@string_builder:append(_pipe@1, <<">"/utf8>>),
_pipe@3 = children_to_string_builder(_pipe@2, Children),
gleam@string_builder:append(
_pipe@3,
<<<<"</"/utf8, Tag/binary>>/binary, ">"/utf8>>
);
{element_ns, Tag@1, Attrs@1, Children@1, Namespace} ->
_pipe@4 = gleam@string_builder:from_string(
<<"<"/utf8, Tag@1/binary>>
),
_pipe@5 = attrs_to_string_builder(_pipe@4, Attrs@1),
_pipe@6 = gleam@string_builder:append(
_pipe@5,
<<<<" xmlns=\""/utf8, Namespace/binary>>/binary, "\""/utf8>>
),
_pipe@7 = gleam@string_builder:append(_pipe@6, <<">"/utf8>>),
_pipe@8 = children_to_string_builder(_pipe@7, Children@1),
gleam@string_builder:append(
_pipe@8,
<<<<"</"/utf8, Tag@1/binary>>/binary, ">"/utf8>>
)
end.
-spec to_string(element(any())) -> binary().
to_string(Element) ->
_pipe = to_string_builder(Element),
gleam@string_builder:to_string(_pipe).