hacks-guide-minimal-mistake.../assets/scss/vendor/breakpoint/parsers/_query.scss

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@function breakpoint-parse-query($query) {
// Parse features out of an individual query
$feature-holder: ();
$query-holder: ();
$length: length($query);
@if $length == 2 {
// If we've got a string/number, number/string, check to see if it's a valid string/number pair or two singles
@if (type-of(nth($query, 1)) == 'string' and type-of(nth($query, 2)) == 'number') or (type-of(nth($query, 1)) == 'number' and type-of(nth($query, 2)) == 'string') {
$number: '';
$value: '';
@if type-of(nth($query, 1)) == 'string' {
$number: nth($query, 2);
$value: nth($query, 1);
}
@else {
$number: nth($query, 1);
$value: nth($query, 2);
}
// If the string value can be a single value, check to see if the number passed in is a valid input for said single value. Fortunately, all current single-value options only accept unitless numbers, so this check is easy.
@if breakpoint-single-string($value) {
@if unitless($number) {
$feature-holder: append($value, $number, space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
}
// If the string is a media type, split the query
@if breakpoint-is-media($value) {
$query-holder: append($query-holder, nth($query, 1));
$query-holder: append($query-holder, nth($query, 2));
@return $query-holder;
}
// If it's not a single feature, we're just going to assume it's a proper string/value pair, and roll with it.
@else {
$feature-holder: append($value, $number, space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
}
// If they're both numbers, we assume it's a double and roll with that
@else if (type-of(nth($query, 1)) == 'number' and type-of(nth($query, 2)) == 'number') {
$feature-holder: append(nth($query, 1), nth($query, 2), space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
// If they're both strings and neither are singles, we roll with that.
@else if (type-of(nth($query, 1)) == 'string' and type-of(nth($query, 2)) == 'string') {
@if not breakpoint-single-string(nth($query, 1)) and not breakpoint-single-string(nth($query, 2)) {
$feature-holder: append(nth($query, 1), nth($query, 2), space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
}
}
@else if $length == 3 {
// If we've got three items and none is a list, we check to see
@if type-of(nth($query, 1)) != 'list' and type-of(nth($query, 2)) != 'list' and type-of(nth($query, 3)) != 'list' {
// If none of the items are single string values and none of the values are media values, we're good.
@if (not breakpoint-single-string(nth($query, 1)) and not breakpoint-single-string(nth($query, 2)) and not breakpoint-single-string(nth($query, 3))) and ((not breakpoint-is-media(nth($query, 1)) and not breakpoint-is-media(nth($query, 2)) and not breakpoint-is-media(nth($query, 3)))) {
$feature-holder: append(nth($query, 1), nth($query, 2), space);
$feature-holder: append($feature-holder, nth($query, 3), space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
// let's check to see if the first item is a media type
@else if breakpoint-is-media(nth($query, 1)) {
$query-holder: append($query-holder, nth($query, 1));
$feature-holder: append(nth($query, 2), nth($query, 3), space);
$query-holder: append($query-holder, $feature-holder);
@return $query-holder;
}
}
}
// If it's a single item, or if it's not a special case double or triple, we can simply return the query.
@return $query;
}