You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
2.4 KiB
95 lines
2.4 KiB
[](https://travis-ci.org/css-modules/icss-utils)
|
|
|
|
# ICSS Utils
|
|
|
|
## replaceSymbols
|
|
|
|
Governs the way tokens are searched & replaced during the linking stage of ICSS loading.
|
|
|
|
This is broken into its own module in case the behaviour needs to be replicated in other PostCSS plugins
|
|
(i.e. [CSS Modules Values](https://github.com/css-modules/postcss-modules-values))
|
|
|
|
```js
|
|
import { replaceSymbols, replaceValueSymbols } from "icss-utils";
|
|
|
|
replaceSymbols(css, replacements);
|
|
replaceValueSymbols(string, replacements);
|
|
```
|
|
|
|
Where:
|
|
|
|
- `css` is the PostCSS tree you're working with
|
|
- `replacements` is an JS object of `symbol: "replacement"` pairs, where all occurrences of `symbol` are replaced with `replacement`.
|
|
|
|
A symbol is a string of alphanumeric, `-` or `_` characters. A replacement can be any string. They are replaced in the following places:
|
|
|
|
- In the value of a declaration, i.e. `color: my_symbol;` or `box-shadow: 0 0 blur spread shadow-color`
|
|
- In a media expression i.e. `@media small {}` or `@media screen and not-large {}`
|
|
|
|
## extractICSS(css, removeRules = true, mode = 'auto')
|
|
|
|
Extracts and remove (if removeRules is equal true) from PostCSS tree `:import`, `@icss-import`, `:export` and `@icss-export` statements.
|
|
|
|
```js
|
|
import postcss from "postcss";
|
|
import { extractICSS } from "icss-utils";
|
|
|
|
const css = postcss.parse(`
|
|
:import(colors) {
|
|
a: b;
|
|
}
|
|
:export {
|
|
c: d;
|
|
}
|
|
`);
|
|
|
|
extractICSS(css);
|
|
/*
|
|
{
|
|
icssImports: {
|
|
colors: {
|
|
a: 'b'
|
|
}
|
|
},
|
|
icssExports: {
|
|
c: 'd'
|
|
}
|
|
}
|
|
*/
|
|
```
|
|
|
|
By default both the pseudo and at-rule form of the import and export statements
|
|
will be removed. Pass the `mode` option to limit to only one type.
|
|
|
|
## createICSSRules(icssImports, icssExports, mode = 'rule')
|
|
|
|
Converts icss imports and exports definitions to postcss ast
|
|
|
|
```js
|
|
createICSSRules(
|
|
{
|
|
colors: {
|
|
a: "b",
|
|
},
|
|
},
|
|
{
|
|
c: "d",
|
|
},
|
|
// Need pass `rule` and `decl` from postcss
|
|
// Please look at `Step 4` https://evilmartians.com/chronicles/postcss-8-plugin-migration
|
|
postcss
|
|
);
|
|
```
|
|
|
|
By default it will create pseudo selector rules (`:import` and `:export`). Pass
|
|
`at-rule` for `mode` to instead generate `@icss-import` and `@icss-export`, which
|
|
may be more resilient to post processing by other tools.
|
|
|
|
## License
|
|
|
|
ISC
|
|
|
|
---
|
|
|
|
Glen Maddern, Bogdan Chadkin and Evilebottnawi 2015-present.
|