web-deploy/node_modules/clean-css/lib/options/rounding-precision.js

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2024-04-26 18:37:00 +01:00
var override = require('../utils/override');
var INTEGER_PATTERN = /^\d+$/;
var ALL_UNITS = ['*', 'all'];
var DEFAULT_PRECISION = 'off'; // all precision changes are disabled
var DIRECTIVES_SEPARATOR = ','; // e.g. *=5,px=3
var DIRECTIVE_VALUE_SEPARATOR = '='; // e.g. *=5
function roundingPrecisionFrom(source) {
return override(defaults(DEFAULT_PRECISION), buildPrecisionFrom(source));
}
function defaults(value) {
return {
ch: value,
cm: value,
em: value,
ex: value,
in: value,
mm: value,
pc: value,
pt: value,
px: value,
q: value,
rem: value,
vh: value,
vmax: value,
vmin: value,
vw: value,
'%': value
};
}
function buildPrecisionFrom(source) {
if (source === null || source === undefined) {
return {};
}
if (typeof source == 'boolean') {
return {};
}
if (typeof source == 'number' && source == -1) {
return defaults(DEFAULT_PRECISION);
}
if (typeof source == 'number') {
return defaults(source);
}
if (typeof source == 'string' && INTEGER_PATTERN.test(source)) {
return defaults(parseInt(source));
}
if (typeof source == 'string' && source == DEFAULT_PRECISION) {
return defaults(DEFAULT_PRECISION);
}
if (typeof source == 'object') {
return source;
}
return source
.split(DIRECTIVES_SEPARATOR)
.reduce(function(accumulator, directive) {
var directiveParts = directive.split(DIRECTIVE_VALUE_SEPARATOR);
var name = directiveParts[0];
var value = parseInt(directiveParts[1]);
if (Number.isNaN(value) || value == -1) {
value = DEFAULT_PRECISION;
}
if (ALL_UNITS.indexOf(name) > -1) {
accumulator = override(accumulator, defaults(value));
} else {
accumulator[name] = value;
}
return accumulator;
}, {});
}
module.exports = {
DEFAULT: DEFAULT_PRECISION,
roundingPrecisionFrom: roundingPrecisionFrom
};