css 0.0.22

A crate that uses the cssparser and selectors crates to provide a domain model for CSS Stylesheets. Intended to allow effective minification of CSS and CSS transformations such as autoprefixing and removal by other crates
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// This file is part of css. It is subject to the license terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT. No part of predicator, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
// Copyright © 2017 The developers of css. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT.


bitflags!
{
    /// The mode to use when parsing values.
    pub struct ParsingMode: u8
    {
        /// In CSS, units must have units, except for zero values, where the unit can be omitted.
        /// https://www.w3.org/TR/css3-values/#lengths
        const Default = 0x00;
        
        /// In SVG, a coordinate or length value without a unit identifier (e.g., "25") is assumed to be in user units (px).
        /// https://www.w3.org/TR/SVG/coords.html#Units
        const AllowUnitLessLength = 0x01;
        
        /// In SVG, out-of-range values are not treated as an error in parsing.
        /// https://www.w3.org/TR/SVG/implnote.html#RangeClamping
        const AllowAllNumericValues = 0x02;
    }
}

impl ParsingMode
{
	/// Whether the parsing mode allows unit-less units for non-zero values to be interpreted as px.
	pub(crate) fn allows_unitless_lengths(&self) -> bool
	{
		self.intersects(Self::AllowUnitLessLength)
	}
	
	/// Whether the parsing mode allows all numeric values.
	#[allow(dead_code)]
	pub(crate) fn allows_all_numeric_values(&self) -> bool
	{
		self.intersects(Self::AllowAllNumericValues)
	}
}