Allow implicit variable dependencies (#379)v2.8.0

* Allow implicit variable dependencies

* Aug-14 12h01: core.rs, Cargo.toml, Cargo.lock

* Aug-14 12h04: cases.cheat

* Aug-14 12h08: cases.cheat

1 files changed, 12 insertions, 0 deletions

diff --git a/README.md b/README.md
index 9167cfd..3dc34f4 100644
--- a/README.md
+++ b/README.md
@@ -237,10 +237,22 @@ The command for generating possible inputs can refer previous variables:
 # If you select "hello" for <x>, the possible values of <y> will be "hello foo" and "hello bar"
 echo <x> <y>
 
+# If you want to ignore the contents of <x> and only print <y>
+: <x>; echo <y>
+
 $ x: echo "hello hi" | tr ' ' '\n'
 $ y: echo "$x foo;$x bar" | tr ';' '\n'
 ```
 
+If you want to have implicit variable dependency, you can use the `<varname>` syntax inside a variable command:
+```sh
+# Should print /my/pictures/wallpapers
+echo "<wallpaper_folder>"
+
+$ pictures_folder: echo "/my/pictures"
+$ wallpaper_folder: echo "<pictures_folder>/wallpapers"
+```
+
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