ErlyDTL implements most but not all of the Django Template Language.
Project homepage: http://code.google.com/p/erlydtl/
To compile ErlyDTL, run
make
in this directory.
Four ways:
erlydtl:compile("/path/to/template.dtl", my_module_name)
erlydtl:compile("/path/to/template.dtl", my_module_name, Options)
erlydtl:compile(<<"<html>{{ foo }}</html>">>, my_module_name)
erlydtl:compile(<<"<html>{{ foo }}</html>">>, my_module_name, Options)
Options is a proplist possibly containing:
-
out_dir- Directory to store generated .beam files. If not specified, no .beam files will be created. -
doc_root- Included template paths will be relative to this directory; defaults to the compiled template's directory. -
custom_tags_dir- Directory of DTL files (no extension) includable as tags. E.g. if $custom_tags_dir/foo contains<b>{{ bar }}</b>, then{{ foo bar=100 }}will evaluate to<b>100</b>. Get it? -
vars- Variables (and their values) to evaluate at compile-time rather than render-time. -
reader- {module, function} tuple that takes a path to a template and returns a binary with the file contents. Defaults to{file, read_file}. Useful for reading templates from a network resource. -
compiler_options- Proplist passed directly tocompiler:forms/2 -
force_recompile- Recompile the module even if the source's checksum has not changed. Useful for debugging. -
locale- The locale used for template compile. Requires erlang_gettext. It will ask gettext_server for the string value on the provided locale. For example, adding {locale, "en_US"} will call {key2str, Key, "en_US"} for all string marked as trans ({% trans "StringValue" %}on templates). See README_I18N.
my_compiled_template:render(Variables) -> {ok, IOList} | {error, Err}
Variables is a proplist, dict, gb_tree, or a parameterized module (whose method names correspond to variable names). The variable values can be atoms, strings, binaries, or (nested) variables.
IOList is the rendered template.
my_compiled_template:render(Variables, TranslationFun) ->
{ok, IOList} | {error, Err}
Same as render/1, but TranslationFun is a fun/1 that will be used to
translate strings appearing inside {% trans %} tags. The simplest
TranslationFun would be fun(Val) -> Val end
my_compiled_template:translatable_strings() -> [String]
List of strings appearing in {% trans %} tags that can be overridden
with a dictionary passed to render/2.
my_compiled_template:source() -> {FileName, CheckSum}
Name and checksum of the original template file.
my_compiled_template:dependencies() -> [{FileName, CheckSum}]
List of names/checksums of templates included by the original template file. Useful for frameworks that recompile a template only when the template's dependencies change.
From a Unix shell, run:
make test
Note that the tests will create some output in examples/rendered_output.
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