lib: adds `from_a` constructor to all processes (and cleanup whitespaces)

[nit.git] / lib / standard / exec.nit

diff --git a/lib/standard/exec.nit b/lib/standard/exec.nit
index f71ce54..90f47eb 100644 (file)
--- a/lib/standard/exec.nit
+++ b/lib/standard/exec.nit
@@ -5,7 +5,7 @@
 #
 # This file is free software, which comes along with NIT.  This software is
 # distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
-# without  even  the implied warranty of  MERCHANTABILITY or  FITNESS FOR A 
+# without  even  the implied warranty of  MERCHANTABILITY or  FITNESS FOR A
 # PARTICULAR PURPOSE.  You can modify it is you want,  provided this header
 # is kept unaltered, and a notification of the changes is added.
 # You  are  allowed  to  redistribute it and sell it, alone or is a part of
@@ -13,7 +13,7 @@
 
 # Invocation and management of operating system sub-processes.
 # Standard input and output can be handled through streams.
-package exec 
+package exec
 
 import stream
 
@@ -31,7 +31,7 @@ class Process
                data.wait
                assert is_finished
        end
-       
+
        # The status once finished
        fun status: Int
        do
@@ -51,6 +51,11 @@ class Process
                execute(command, null, 0)
        end
 
+       init from_a(command: String, arguments: Array[String])
+       do
+               execute(command, arguments, 0)
+       end
+
        # Internal code to handle execution
        protected init execute(command: String, arguments: nullable Array[String], pipeflags: Int)
        do
@@ -66,7 +71,7 @@ class Process
                end
                data = basic_exec_execute(command.to_cstring, args.to_s.to_cstring, l, pipeflags)
        end
-       
+
        private var data: NativeProcess
        private fun basic_exec_execute(p: NativeString, av: NativeString, ac: Int, pf: Int): NativeProcess is extern "exec_Process_Process_basic_exec_execute_4"
 end
@@ -76,9 +81,9 @@ class IProcess
        super Process
        super IStream
        var stream_in: FDIStream
-       
+
        redef fun close do stream_in.close
-       
+
        redef fun read_char do return stream_in.read_char
 
        redef fun eof do return stream_in.eof
@@ -88,12 +93,18 @@ class IProcess
                execute(command, arguments, 2)
                stream_in = new FDIStream(data.out_fd)
        end
-       
+
        init init_(command: String)
        do
                execute(command, null, 2)
                stream_in = new FDIStream(data.out_fd)
        end
+
+       init from_a(command: String, arguments: Array[String])
+       do
+               execute(command, arguments, 2)
+               stream_in = new FDIStream(data.out_fd)
+       end
 end
 
 # stdin of the process is writable
@@ -107,18 +118,24 @@ class OProcess
        redef fun is_writable do return stream_out.is_writable
 
        redef fun write(s) do stream_out.write(s)
-       
+
        init(command: String, arguments: String...)
        do
                execute(command, arguments, 1)
                stream_out = new FDOStream(data.in_fd)
        end
-       
+
        init init_(command: String)
        do
                execute(command, null, 1)
                stream_out = new FDOStream(data.in_fd)
        end
+
+       init from_a(command: String, arguments: Array[String])
+       do
+               execute(command, arguments, 1)
+               stream_out = new FDOStream(data.in_fd)
+       end
 end
 
 # stdin and stdout are both accessible
@@ -139,20 +156,27 @@ class IOProcess
                stream_in = new FDIStream(data.out_fd)
                stream_out = new FDOStream(data.in_fd)
        end
-       
+
        init init_(command: String)
        do
                execute(command, null, 3)
                stream_in = new FDIStream(data.out_fd)
                stream_out = new FDOStream(data.in_fd)
        end
+
+       init from_a(command: String, arguments: Array[String])
+       do
+               execute(command, arguments, 3)
+               stream_in = new FDIStream(data.out_fd)
+               stream_out = new FDOStream(data.in_fd)
+       end
 end
 
 redef class Sys
        # Execute a shell command and return its error code
        fun system(command: String): Int
        do
-               return command.to_cstring.system        
+               return command.to_cstring.system
        end
 end