Rename exp to ecc

Author: antonmedv

README.md

@@ -108,7 +108,7 @@ out, err := expr.Run(program, &Env{"world"})
 
 **Expr** consist of a few packages for parsing source code to AST, type checking AST, compiling to bytecode and VM for running bytecode program.
 
-Also expr provides powerful tool [exp](cmd/exp) for debugging. It has interactive terminal debugger for our bytecode virtual machine.
+Also expr provides powerful tool [ecc](cmd/ecc) for debugging. It has interactive terminal debugger for our bytecode virtual machine.
 
 <p align="center">
     <img src="docs/images/debug.gif" alt="debugger" width="605">

cmd/exp/README.md renamed to cmd/ecc/README.md

@@ -1,33 +1,33 @@
-# exp
+# ecc
 
 ## Install
 
 ```bash
-go get github.com/antonmedv/expr/cmd/exp
+go get github.com/antonmedv/expr/cmd/ecc
 ```
 
 ## Usage
 
 Print ast of program.
 
 ```bash
-echo '1 + 2' | exp -ast
+echo '1 + 2' | ecc -ast
 ```
 
 Disassemble bytecode to human readable format.
 
 ```bash
-echo 'map(0..9, {# * 2})' | exp -bytecode
+echo 'map(0..9, {# * 2})' | ecc -bytecode
 ```
 
 Run expression.
 
 ```bash
-echo '2**8' | exp -run
+echo '2**8' | ecc -run
 ```
 
 Start interactive debugger.
 
 ```bash
-echo 'all(1..3, {# > 0})' | exp -debug
+echo 'all(1..3, {# > 0})' | ecc -debug
 ```