Add Stylus syntax test file

This commit is contained in:
Mohamed Abdelnour 2021-05-30 10:07:25 +02:00 committed by David Peter
parent 6e5a2a5c51
commit 768189859a
3 changed files with 204 additions and 0 deletions

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@import 'config'
/*
 * Implicit color stop position.
 */
pos-in-stops(i, stops)
 len = length(stops)
 if len - 1 == i
 100%
 else if i
 unit(i / len * 100, '%')
 else
 0
/*
 * Normalize color stops:
 *
 * - (color pos) -> (pos color)
 * - (color) -> (implied-pos color)
 *
 */
normalize-stops(stops)
 stops = clone(stops)
 for stop, i in stops
 if length(stop) == 1
 color = stop[0]
 stop[0] = pos-in-stops(i, stops)
 stop[1] = color
 else if typeof(stop[1]) == 'unit'
 pos = stop[1]
 stop[1] = stop[0]
 stop[0] = pos
 stops
/*
 * Join color stops with the given translation function.
 */
join-stops(stops, translate)
 str = ''
 len = length(stops)
 for stop, i in stops
 str += ', ' if i
 pos = stop[0]
 color = stop[1]
 str += translate(color, pos)
 unquote(str)
/*
 * Standard color stop.
 */
std-stop(color, pos)
 '%s %s' % (color pos)
/*
 * Create a linear gradient with the given start position
 * and variable number of color stops.
 *
 * Examples:
 *
 * background: linear-gradient(top, red, green, blue)
 * background: linear-gradient(bottom, red, green 50%, blue)
 * background: linear-gradient(bottom, red, 50% green, blue)
 * background: linear-gradient(bottom, red, 50% green, 90% white, blue)
 *
 */
linear-gradient(start, stops...)
 error('color stops required') unless length(stops)
 unquote('linear-gradient(' + join(', ',arguments) + ')')
/*
 * Create a linear gradient image with the given start position
 * and variable number of color stops.
 */
linear-gradient-image(start, stops...)
 error('node-canvas is required for linear-gradient-image()') unless has-canvas
 stops = stops[0] if length(stops) == 1
 error('gradient image size required') unless start[0] is a 'unit'
 size = start[0]
 start = start[1] or 'top'
 grad = create-gradient-image(size, start)
 stops = normalize-stops(stops)
 add-color-stop(grad, stop[0], stop[1]) for stop in stops
 'url(%s)' % gradient-data-uri(grad)

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The `gradients.styl` file has been added from https://github.com/stylus/nib under the following license:
```text
The MIT License (MIT)
Copyright (c) 2014 TJ Holowaychuk <tj@vision-media.ca>
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
```

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@import 'config'
/*
* Implicit color stop position.
*/
pos-in-stops(i, stops)
len = length(stops)
if len - 1 == i
100%
else if i
unit(i / len * 100, '%')
else
0
/*
* Normalize color stops:
*
* - (color pos) -> (pos color)
* - (color) -> (implied-pos color)
*
*/
normalize-stops(stops)
stops = clone(stops)
for stop, i in stops
if length(stop) == 1
color = stop[0]
stop[0] = pos-in-stops(i, stops)
stop[1] = color
else if typeof(stop[1]) == 'unit'
pos = stop[1]
stop[1] = stop[0]
stop[0] = pos
stops
/*
* Join color stops with the given translation function.
*/
join-stops(stops, translate)
str = ''
len = length(stops)
for stop, i in stops
str += ', ' if i
pos = stop[0]
color = stop[1]
str += translate(color, pos)
unquote(str)
/*
* Standard color stop.
*/
std-stop(color, pos)
'%s %s' % (color pos)
/*
* Create a linear gradient with the given start position
* and variable number of color stops.
*
* Examples:
*
* background: linear-gradient(top, red, green, blue)
* background: linear-gradient(bottom, red, green 50%, blue)
* background: linear-gradient(bottom, red, 50% green, blue)
* background: linear-gradient(bottom, red, 50% green, 90% white, blue)
*
*/
linear-gradient(start, stops...)
error('color stops required') unless length(stops)
unquote('linear-gradient(' + join(', ',arguments) + ')')
/*
* Create a linear gradient image with the given start position
* and variable number of color stops.
*/
linear-gradient-image(start, stops...)
error('node-canvas is required for linear-gradient-image()') unless has-canvas
stops = stops[0] if length(stops) == 1
error('gradient image size required') unless start[0] is a 'unit'
size = start[0]
start = start[1] or 'top'
grad = create-gradient-image(size, start)
stops = normalize-stops(stops)
add-color-stop(grad, stop[0], stop[1]) for stop in stops
'url(%s)' % gradient-data-uri(grad)