flow like the river

BACK_BACK/node_modules/postcss-convert-values/CHANGELOG.md

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+# 4.0.0-rc.0
+
+* Breaking: Drops support for Node 0.12, we now require at least Node 4.
+* Breaking: Update PostCSS to 6.0.0.
+* Breaking: Removes the deprecated options from version 2.2.0.
+
+# 2.6.1
+
+* Resolves an issue where IE hacks were being removed from `0` values
+  (thanks to @Justineo).
+
+# 2.6.0
+
+* Added clamping of the values for the `shape-image-threshold` property, using
+  the same logic as introduced in version `2.5.0`.
+
+# 2.5.0
+
+* Added clamping of the values for the `opacity` property to the `0-1` range.
+  For example, this will convert `opacity: 1.1` to `opacity: 1`.
+
+# 2.4.1
+
+* Resolves an issue where the units would be stripped from zero values in
+  custom properties (thanks to @jgerigmeyer).
+
+# 2.4.0
+
+* Added a `precision` option to enable rounding of decimal places for
+  `px` values.
+
+# 2.3.6
+
+* Resolves an issue with the last patch where `height: 0em` was not being
+  converted to `height: 0`.
+
+# 2.3.5
+
+* Resolves an issue where certain properties inside `@keyframes` rules would
+  break animation in IE due to the percentage being stripped. Now, the
+  percentage is preserved for these properties.
+
+# 2.3.4
+
+* Does not convert `height:0%` to `height:0` (and the same for `max-height`), as
+  they produce different results.
+
+# 2.3.3
+
+* Updates postcss-value-parser to version 3 (thanks to @TrySound).
+
+# 2.3.2
+
+* Fixed a regression where `0%` in color functions was being transformed to `0`
+  (thanks to @TrySound).
+
+# 2.3.1
+
+* Fixed a behaviour where `0deg` was being converted to `0`.
+
+# 2.3.0
+
+* Added an option to convert between `turn` & `deg` (thanks to @TrySound).
+
+# 2.2.1
+
+* Fixes a behaviour where the module would remove units from zero values inside
+  calc functions (thanks to @marek-saji & @TrySound).
+
+# 2.2.0
+
+* Renames `opts.convertLength` & `opts.convertTime` to
+  `opts.length` & `opts.time`; the old options will now print deprecation
+  warnings (thanks to @TrySound).
+
+# 2.1.0
+
+* Adds options to enable/disable unit conversion for time & length values.
+
+# 2.0.1
+
+* Bump postcss-value-parser to `2.0.2`.
+
+# 2.0.0
+
+* Upgraded to PostCSS 5.
+
+# 1.3.1
+
+* Fixes an issue where the module would convert values in gradient/url functions
+  since 1.3.0.
+
+# 1.3.0
+
+* Converted the module to use ES6.
+* balanced-match, css-list & some integrated code has been replaced with
+  postcss-value-parser; reducing the number of moving parts in this module, and
+  providing a more futureproof way of parsing CSS numeric values.
+
+# 1.2.5
+
+* Fixes an issue where uppercase units (such as PX) were being deleted.
+
+# 1.2.4
+
+* Fixes convert not px or ms
+
+# 1.2.3
+
+* Adds support for `ch` units; previously they were removed.
+* Upgrades css-list to `0.1.0`, code tidied up.
+
+# 1.2.2
+
+* Added support for viewport units (thanks to @TrySound).
+
+# 1.2.1
+
+* Fixes regressions introduced by the previous patch. Better support for
+  negative value transforms.
+
+# 1.2.0
+
+* Adds support for slash/comma separated values (thanks to @TrySound).
+
+# 1.1.1
+
+* Fixes an issue where trailing zeroes were not being removed in
+  values that were not `0` (thanks to @TrySound).
+
+# 1.1.0
+
+* Adds support for removing leading zeroes from `rem` values
+  (thanks to @tunnckoCore).
+
+# 1.0.3
+
+* Fixed a bug where filenames were being incorrectly transformed.
+
+# 1.0.2
+
+* Fixed a bug where `1.` and `.0` were not being optimised to `1` and `0`,
+  respectively.
+
+# 1.0.1
+
+* Fixed a bug where `undefined` would be stringified as the unit value, if the
+  value did not have a unit.
+
+# 1.0.0
+
+* Initial release.

BACK_BACK/node_modules/postcss-convert-values/LICENSE-MIT

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+Copyright (c) Ben Briggs <beneb.info@gmail.com> (http://beneb.info)
+
+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.

BACK_BACK/node_modules/postcss-convert-values/README.md

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+# [postcss][postcss]-convert-values
+
+> Convert values with PostCSS (e.g. ms -> s)
+
+## Install
+
+With [npm](https://npmjs.org/package/postcss-convert-values) do:
+
+```
+npm install postcss-convert-values --save
+```
+
+## Example
+
+This plugin reduces CSS size by converting values to use different units
+where possible; for example, `500ms` can be represented as `.5s`. You can
+read more about these units in [this article][csstricks].
+
+### Input
+
+```css
+h1 {
+    font-size: 16px;
+    width: 0em
+}
+```
+
+### Output
+
+```css
+h1 {
+    font-size: 1pc;
+    width: 0
+}
+```
+
+Note that this plugin only covers conversions for duration and absolute length
+values. For color conversions, use [postcss-colormin][colormin].
+
+## API
+
+### convertValues([options])
+
+#### options
+
+##### length
+
+Type: `boolean`
+Default: `true`
+
+Pass `false` to disable conversion from `px` to other absolute length units,
+such as `pc` & `pt` & vice versa.
+
+##### time
+
+Type: `boolean`
+Default: `true`
+
+Pass `false` to disable conversion from `ms` to `s` & vice versa.
+
+##### angle
+
+Type: `boolean`
+Default: `true`
+
+Pass `false` to disable conversion from `deg` to `turn` & vice versa.
+
+##### precision
+
+Type: `boolean|number`
+Default: `false`
+
+Specify any numeric value here to round `px` values to that many decimal places;
+for example, using `{precision: 2}` will round `6.66667px` to `6.67px`, and
+`{precision: 0}` will round it to `7px`. Passing `false` (the default) will
+leave these values as is.
+
+It is recommended for most use cases to set this option to `2`.
+
+
+## Usage
+
+See the [PostCSS documentation](https://github.com/postcss/postcss#usage) for
+examples for your environment.
+
+
+## Contributors
+
+See [CONTRIBUTORS.md](https://github.com/cssnano/cssnano/blob/master/CONTRIBUTORS.md).
+
+
+## License
+
+MIT © [Ben Briggs](http://beneb.info)
+
+
+[postcss]: https://github.com/postcss/postcss
+[csstricks]: https://css-tricks.com/the-lengths-of-css/

BACK_BACK/node_modules/postcss-convert-values/dist/index.js

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+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+var _postcss = require('postcss');
+
+var _postcss2 = _interopRequireDefault(_postcss);
+
+var _postcssValueParser = require('postcss-value-parser');
+
+var _postcssValueParser2 = _interopRequireDefault(_postcssValueParser);
+
+var _convert = require('./lib/convert');
+
+var _convert2 = _interopRequireDefault(_convert);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const LENGTH_UNITS = ['em', 'ex', 'ch', 'rem', 'vw', 'vh', 'vmin', 'vmax', 'cm', 'mm', 'q', 'in', 'pt', 'pc', 'px'];
+
+function parseWord(node, opts, keepZeroUnit) {
+    const pair = (0, _postcssValueParser.unit)(node.value);
+    if (pair) {
+        const num = Number(pair.number);
+        const u = pair.unit;
+        if (num === 0) {
+            node.value = keepZeroUnit || !~LENGTH_UNITS.indexOf(u.toLowerCase()) && u !== '%' ? 0 + u : 0;
+        } else {
+            node.value = (0, _convert2.default)(num, u, opts);
+
+            if (typeof opts.precision === 'number' && u.toLowerCase() === 'px' && ~pair.number.indexOf('.')) {
+                const precision = Math.pow(10, opts.precision);
+                node.value = Math.round(parseFloat(node.value) * precision) / precision + u;
+            }
+        }
+    }
+}
+
+function clampOpacity(node) {
+    const pair = (0, _postcssValueParser.unit)(node.value);
+    if (!pair) {
+        return;
+    }
+    let num = Number(pair.number);
+    if (num > 1) {
+        node.value = 1 + pair.unit;
+    } else if (num < 0) {
+        node.value = 0 + pair.unit;
+    }
+}
+
+function shouldStripPercent(decl) {
+    const { parent } = decl;
+    const lowerCasedProp = decl.prop.toLowerCase();
+    return ~decl.value.indexOf('%') && (lowerCasedProp === 'max-height' || lowerCasedProp === 'height') || parent.parent && parent.parent.name && parent.parent.name.toLowerCase() === 'keyframes' && lowerCasedProp === 'stroke-dasharray' || lowerCasedProp === 'stroke-dashoffset' || lowerCasedProp === 'stroke-width';
+}
+
+function transform(opts, decl) {
+    const lowerCasedProp = decl.prop.toLowerCase();
+    if (~lowerCasedProp.indexOf('flex') || lowerCasedProp.indexOf('--') === 0) {
+        return;
+    }
+
+    decl.value = (0, _postcssValueParser2.default)(decl.value).walk(node => {
+        const lowerCasedValue = node.value.toLowerCase();
+
+        if (node.type === 'word') {
+            parseWord(node, opts, shouldStripPercent(decl));
+            if (lowerCasedProp === 'opacity' || lowerCasedProp === 'shape-image-threshold') {
+                clampOpacity(node);
+            }
+        } else if (node.type === 'function') {
+            if (lowerCasedValue === 'calc' || lowerCasedValue === 'hsl' || lowerCasedValue === 'hsla') {
+                (0, _postcssValueParser.walk)(node.nodes, n => {
+                    if (n.type === 'word') {
+                        parseWord(n, opts, true);
+                    }
+                });
+                return false;
+            }
+            if (lowerCasedValue === 'url') {
+                return false;
+            }
+        }
+    }).toString();
+}
+
+const plugin = 'postcss-convert-values';
+
+exports.default = _postcss2.default.plugin(plugin, (opts = { precision: false }) => {
+    return css => css.walkDecls(transform.bind(null, opts));
+});
+module.exports = exports['default'];

BACK_BACK/node_modules/postcss-convert-values/dist/lib/convert.js

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+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+exports.default = function (number, unit, { time, length, angle }) {
+    let value = dropLeadingZero(number) + (unit ? unit : '');
+    let converted;
+
+    if (length !== false && unit.toLowerCase() in lengthConv) {
+        converted = transform(number, unit, lengthConv);
+    }
+
+    if (time !== false && unit.toLowerCase() in timeConv) {
+        converted = transform(number, unit, timeConv);
+    }
+
+    if (angle !== false && unit.toLowerCase() in angleConv) {
+        converted = transform(number, unit, angleConv);
+    }
+
+    if (converted && converted.length < value.length) {
+        value = converted;
+    }
+
+    return value;
+};
+
+const lengthConv = {
+    in: 96,
+    px: 1,
+    pt: 4 / 3,
+    pc: 16
+};
+
+const timeConv = {
+    s: 1000,
+    ms: 1
+};
+
+const angleConv = {
+    turn: 360,
+    deg: 1
+};
+
+function dropLeadingZero(number) {
+    const value = String(number);
+
+    if (number % 1) {
+        if (value[0] === '0') {
+            return value.slice(1);
+        }
+
+        if (value[0] === '-' && value[1] === '0') {
+            return '-' + value.slice(2);
+        }
+    }
+
+    return value;
+}
+
+function transform(number, unit, conversion) {
+    const lowerCasedUnit = unit.toLowerCase();
+    let one, base;
+    let convertionUnits = Object.keys(conversion).filter(u => {
+        if (conversion[u] === 1) {
+            one = u;
+        }
+        return lowerCasedUnit !== u;
+    });
+
+    if (lowerCasedUnit === one) {
+        base = number / conversion[lowerCasedUnit];
+    } else {
+        base = number * conversion[lowerCasedUnit];
+    }
+
+    return convertionUnits.map(u => dropLeadingZero(base / conversion[u]) + u).reduce((a, b) => a.length < b.length ? a : b);
+}
+
+module.exports = exports['default'];

BACK_BACK/node_modules/postcss-convert-values/package.json

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+{
+  "name": "postcss-convert-values",
+  "version": "4.0.1",
+  "description": "Convert values with PostCSS (e.g. ms -> s)",
+  "main": "dist/index.js",
+  "files": [
+    "LICENSE-MIT",
+    "dist"
+  ],
+  "scripts": {
+    "prepublish": "cross-env BABEL_ENV=publish babel src --out-dir dist --ignore /__tests__/"
+  },
+  "keywords": [
+    "css",
+    "optimisation",
+    "postcss",
+    "postcss-plugin"
+  ],
+  "license": "MIT",
+  "devDependencies": {
+    "babel-cli": "^6.0.0",
+    "cross-env": "^5.0.0"
+  },
+  "homepage": "https://github.com/cssnano/cssnano",
+  "author": {
+    "name": "Ben Briggs",
+    "email": "beneb.info@gmail.com",
+    "url": "http://beneb.info"
+  },
+  "repository": "cssnano/cssnano",
+  "dependencies": {
+    "postcss": "^7.0.0",
+    "postcss-value-parser": "^3.0.0"
+  },
+  "bugs": {
+    "url": "https://github.com/cssnano/cssnano/issues"
+  },
+  "engines": {
+    "node": ">=6.9.0"
+  }
+}