c965048f40
* Fine tune whitespace The EEx outut now emits more human-readable and predictable formatting. This includes proper indenting, at least for each "root" template. * Internal whitespace control You can now use a bang version of any nonvoid tag to emit the markup witout the internal whitespace. This means that there will not be a newline emitted after the opening tag and before the closing tag.
121 lines
3.1 KiB
Elixir
121 lines
3.1 KiB
Elixir
defmodule Temple.Parser.Utils do
|
|
@moduledoc false
|
|
|
|
def snake_to_kebab(stringable),
|
|
do: stringable |> to_string() |> String.replace_trailing("_", "") |> String.replace("_", "-")
|
|
|
|
def kebab_to_snake(stringable),
|
|
do: stringable |> to_string() |> String.replace("-", "_")
|
|
|
|
def compile_attrs([]), do: ""
|
|
|
|
def compile_attrs([attrs]) when is_list(attrs) do
|
|
compile_attrs(attrs)
|
|
end
|
|
|
|
def compile_attrs(attrs) when is_list(attrs) do
|
|
if Keyword.keyword?(attrs) do
|
|
for {name, value} <- attrs, into: "" do
|
|
name = snake_to_kebab(name)
|
|
|
|
with false <- not is_binary(value) && Macro.quoted_literal?(value),
|
|
false <- match?({_, _, _}, value),
|
|
false <- is_list(value) do
|
|
" " <> name <> "=\"" <> to_string(value) <> "\""
|
|
else
|
|
true ->
|
|
~s|<%= {:safe, Temple.Parser.Utils.build_attr("#{name}", #{Macro.to_string(value)})} %>|
|
|
end
|
|
end
|
|
else
|
|
"<%= Temple.Parser.Utils.runtime_attrs(" <>
|
|
(attrs |> List.first() |> Macro.to_string()) <> ") %>"
|
|
end
|
|
end
|
|
|
|
def runtime_attrs(attrs) do
|
|
{:safe,
|
|
for {name, value} <- attrs, name not in [:inner_block, :inner_content], into: "" do
|
|
name = snake_to_kebab(name)
|
|
|
|
build_attr(name, value)
|
|
end}
|
|
end
|
|
|
|
def build_attr(name, true) do
|
|
" " <> name
|
|
end
|
|
|
|
def build_attr(_name, false) do
|
|
""
|
|
end
|
|
|
|
def build_attr("class", classes) when is_list(classes) do
|
|
value = String.trim_leading(for {class, true} <- classes, into: "", do: " #{class}")
|
|
|
|
" class" <> "=\"" <> value <> "\""
|
|
end
|
|
|
|
def build_attr(name, value) do
|
|
" " <> name <> "=\"" <> to_string(value) <> "\""
|
|
end
|
|
|
|
def split_args(not_what_i_want) when is_nil(not_what_i_want) or is_atom(not_what_i_want),
|
|
do: {[], []}
|
|
|
|
def split_args(args) do
|
|
{do_and_else, args} =
|
|
args
|
|
|> Enum.split_with(fn arg ->
|
|
if Keyword.keyword?(arg) do
|
|
arg
|
|
|> Keyword.drop([:do, :else])
|
|
|> Enum.empty?()
|
|
else
|
|
false
|
|
end
|
|
end)
|
|
|
|
{List.flatten(do_and_else), args}
|
|
end
|
|
|
|
def consolidate_blocks(blocks, args) do
|
|
case args do
|
|
[args] when is_list(args) ->
|
|
{do_value, args} = Keyword.pop(args, :do)
|
|
|
|
{Keyword.put_new(blocks, :do, do_value), args}
|
|
|
|
_ ->
|
|
{blocks, args}
|
|
end
|
|
end
|
|
|
|
def split_on_fn([{:fn, _, _} = func | rest], {args_before, _, args_after}) do
|
|
split_on_fn(rest, {args_before, func, args_after})
|
|
end
|
|
|
|
def split_on_fn([arg | rest], {args_before, nil, args_after}) do
|
|
split_on_fn(rest, {[arg | args_before], nil, args_after})
|
|
end
|
|
|
|
def split_on_fn([arg | rest], {args_before, func, args_after}) do
|
|
split_on_fn(rest, {args_before, func, [arg | args_after]})
|
|
end
|
|
|
|
def split_on_fn([], {args_before, func, args_after}) do
|
|
{Enum.reverse(args_before), func, Enum.reverse(args_after)}
|
|
end
|
|
|
|
def pop_compact?([]), do: {false, []}
|
|
def pop_compact?([args]) when is_list(args), do: pop_compact?(args)
|
|
|
|
def pop_compact?(args) do
|
|
Keyword.pop(args, :compact, false)
|
|
end
|
|
|
|
def indent(level) do
|
|
String.duplicate(" ", level * 2)
|
|
end
|
|
end
|