c9s

When `_index.scss` does not exist, we sort the filenames in ascending order to import the files. ``` components/menu/_01_menu.scss components/menu/_02_menu_bar.scss components/menu/_02_menu_item.scss ```

Let user customize directive statement (?)

1. Proposal 1: ``` sass @constant width: 100 * 100 ``` 1. Proposal 2: ``` sass $width: 100 * 100 !constant; ```

``` scss foo { display: expression("inline", (this.innerHTML += (this.innerHTML.indexOf(",") == -1 ? ", " : "")), this.runtimeStyle.display = "inline"); } foo{display:expression("inline", (this.innerHTML += (this.innerHTML.indexOf(",") == -1 ? ", " :...

- [ ] Selector - [ ] Ruleset - [ ] Property - [ ] Nested Ruleset - [ ] Function call - [ ] Interpolation - [ ] `calc()`...

- [ ] Fault-tolerance ability - [ ] Ability to restore parser states. - [ ] Use channel to pass error report. - [ ] Provider error reporter to print...