add manual

1 files changed, 18 insertions, 0 deletions

diff --git a/manual/specification.md b/manual/specification.md
new file mode 100644
index 00000000..f3e89cac
--- /dev/null
+++ b/manual/specification.md
@@ -0,0 +1,18 @@
+## Naming conventions
+
+The interface is named according to some of the predefined specifications, which is more convenient to understand and easy to use.
+
+It's according to the following rules:
+
+| Interfaces            | Description                                                      |
+| --------------------- | ---------------------------------------------------------------- |
+| `is_`/`has_` + xxx    | Condition interfaces                                             |
+| `set_` + xxx          | Set and override the previous settings                           |
+| `add_` + xxx          | Set and append settings                                          |
+| `…s` + xxx *(plural)* | Support multi-parameters, .e.g：`add_files("*.c", "test.cpp")`   |
+| `on_` + xxx           | Set and override builtin script                                  |
+| `before_` + xxx       | Set and run this script before running builtin-script            |
+| `after_` + xxx        | Set and run this script after running builtin-script             |
+| `scope("name")`       | Define a description scope, .e.g `target("xxx")`, `option("xxx")`|
+| scope/settings        | Indentation with spaces                                          |
+