all: changes the line number arguments for "local" and "play" command

Previously, the "local" and "play" command only accept two kind of
arguments: one argument for executing single line or two arguments for
executing line range.
There are no options to executing multiple single line, multiple line
range, or combination of them.

This changes make the both commands accept list of lines or line range
where each separated by comma.
For example, to execute multiple, different single lines

   awwan local 4,8,12

To execute multiple line range,

   awwan local 4-8,12-16

Or to execute multiple lines and line range,

   awwan local 4,8,10-12

1 files changed, 16 insertions, 7 deletions

diff --git a/request.go b/request.go
index a262c1b..c742e74 100644
--- a/request.go
+++ b/request.go
@@ -20,18 +20,27 @@ type Request struct {
 	scriptPath string    // The actual or cleaned up path of the Script.
 	script     *Script
 
-	Mode    string `json:"mode"`
-	Script  string `json:"script"`
-	Content []byte `json:"content"`
-	BeginAt int    `json:"begin_at"`
-	EndAt   int    `json:"end_at"`
+	Mode      string `json:"mode"`
+	Script    string `json:"script"`
+	LineRange string `json:"line_range"`
+	Content   []byte `json:"content"`
+
+	lineRange lineRange
 }
 
 // NewRequest create new Request and initialize stdout and stderr to os.Stdout
 // and os.Stderr.
-func NewRequest() *Request {
-	return &Request{
+func NewRequest(mode, script, lineRange string) (req *Request) {
+	req = &Request{
 		stdout: os.Stdout,
 		stderr: os.Stderr,
+
+		Mode:      mode,
+		Script:    script,
+		LineRange: lineRange,
 	}
+
+	req.lineRange = parseLineRange(lineRange)
+
+	return req
 }