css-parser
A CSS parser written in OCaml
README
A CSS parser written in OCaml.
Parses a CSS string and produces an AST.
Build
npm install -g esy
esy
# to build and run tests
esy dune runtest
Example
let css =
{|
{
color: red !important;
width: 100%;
}
|} in
let ast = Css.Parser.parse_stylesheet css in
(* ast is a value of type Css.Stylesheet.t defined in lib/types.mli *)
(* that looks like that:
([Rule.Style_rule
{Style_rule.prelude = ([], Location.none);
block =
([Declaration_list.Declaration
{Declaration.name = ("color", Location.none);
value = ([(Component_value.Ident "blue", Location.none)], Location.none);
important = (true, Location.none);
loc = Location.none;
};
{Declaration.name = ("width", Location.none);
value = ([(Component_value.Percentage "100", Location.none)], Location.none);
important = (false, Location.none);
loc = Location.none;
};
], Location.none);
loc = Location.none;
};
], Location.none)
*)
Remarks
Whitespaces and comments are discarded by the lexer, so they are not available
to the parser. An exception is made for significant whitespaces in rule
preludes, to disambiguate between selectors like p :first-child
andp:first-child
. These whitespaces are replaced with *
to keep CSS semantics
intact. So, e.g., p :first-child
is parsed as p *:first-child
, p .class
as p *.class
, and p #id
as p *#id
.
Install
- Published
-
02 Feb 2021
- Authors
-
- Maintainers
-
Sources
Dependencies
Reverse Dependencies