flow like the river

BACK_BACK/node_modules/postcss-normalize-whitespace/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-normalize-whitespace/README.md

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+# [postcss][postcss]-normalize-whitespace
+
+> Normalize whitespace with PostCSS.
+
+## Install
+
+With [npm](https://npmjs.org/package/postcss-normalize-whitespace) do:
+
+```
+npm install postcss-normalize-whitespace --save
+```
+
+## Example
+
+### Input
+
+```css
+h1{
+    width: calc(10px - ( 100px / var(--test) )) 
+}
+```
+
+### Output
+
+```css
+h1{
+    width: calc(10px - 100px / var(--test))
+}
+``` 
+
+## 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

BACK_BACK/node_modules/postcss-normalize-whitespace/dist/index.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+var _postcss = require("postcss");
+
+var _postcssValueParser = require("postcss-value-parser");
+
+var _postcssValueParser2 = _interopRequireDefault(_postcssValueParser);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const atrule = "atrule";
+const decl = "decl";
+const rule = "rule";
+
+function reduceCalcWhitespaces(node) {
+    if (node.type === "space") {
+        node.value = " ";
+    } else if (node.type === "function") {
+        node.before = node.after = "";
+    }
+}
+
+function reduceWhitespaces(node) {
+    if (node.type === "space") {
+        node.value = " ";
+    } else if (node.type === "div") {
+        node.before = node.after = "";
+    } else if (node.type === "function") {
+        node.before = node.after = "";
+
+        if (node.value.toLowerCase() === "calc") {
+            _postcssValueParser2.default.walk(node.nodes, reduceCalcWhitespaces);
+            return false;
+        }
+    }
+}
+
+exports.default = (0, _postcss.plugin)("postcss-normalize-whitespace", () => {
+    return css => {
+        const cache = {};
+
+        css.walk(node => {
+            const { type } = node;
+
+            if (~[decl, rule, atrule].indexOf(type) && node.raws.before) {
+                node.raws.before = node.raws.before.replace(/\s/g, "");
+            }
+
+            if (type === decl) {
+                // Ensure that !important values do not have any excess whitespace
+                if (node.important) {
+                    node.raws.important = "!important";
+                }
+
+                // Remove whitespaces around ie 9 hack
+                node.value = node.value.replace(/\s*(\\9)\s*/, "$1");
+
+                const value = node.value;
+
+                if (cache[value]) {
+                    node.value = cache[value];
+                } else {
+                    const parsed = (0, _postcssValueParser2.default)(node.value);
+                    const result = parsed.walk(reduceWhitespaces).toString();
+
+                    // Trim whitespace inside functions & dividers
+                    node.value = result;
+                    cache[value] = result;
+                }
+
+                // Remove extra semicolons and whitespace before the declaration
+                if (node.raws.before) {
+                    const prev = node.prev();
+
+                    if (prev && prev.type !== rule) {
+                        node.raws.before = node.raws.before.replace(/;/g, "");
+                    }
+                }
+
+                node.raws.between = ":";
+                node.raws.semicolon = false;
+            } else if (type === rule || type === atrule) {
+                node.raws.between = node.raws.after = "";
+                node.raws.semicolon = false;
+            }
+        });
+
+        // Remove final newline
+        css.raws.after = "";
+    };
+});
+module.exports = exports["default"];

BACK_BACK/node_modules/postcss-normalize-whitespace/package.json

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+{
+  "name": "postcss-normalize-whitespace",
+  "version": "4.0.2",
+  "description": "Trim whitespace inside and around CSS rules & declarations.",
+  "main": "dist/index.js",
+  "files": [
+    "dist",
+    "LICENSE-MIT"
+  ],
+  "scripts": {
+    "prepublish": "cross-env BABEL_ENV=publish babel src --out-dir dist --ignore /__tests__/"
+  },
+  "keywords": [
+    "css",
+    "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"
+  }
+}