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package main
import (
"fmt"
"os"
"os/exec"
"strings"
)
type CommandFunc func(args string)
var poecmds map[string]CommandFunc
func InitCommands() {
poecmds = map[string]CommandFunc{
"Exit": CmdExit,
"New": CmdNew,
"Del": CmdDel,
"Edit": CmdEdit,
"Newcol": CmdNewcol,
}
}
func RunCommand(input string) {
if input == "" {
return
}
input = strings.Trim(input, "\t\n ")
// check poe default commands
cmd := strings.Split(string(input), " ")
if fn, ok := poecmds[cmd[0]]; ok {
fn(strings.TrimPrefix(input, cmd[0]))
return
}
// Edit shortcuts for external commands and piping
switch input[0] {
case '!', '<', '>', '|':
CmdEdit(input)
}
CmdEdit("!" + input)
}
func CmdExit(args string) {
ok := true
for _, win := range AllWindows() {
if !win.CanClose() {
ok = false
}
}
if ok {
quit <- true
}
}
func CmdNewcol(args string) {
screen.Clear()
screen.Sync()
workspace.AddCol()
CmdNew("")
}
func CmdNew(args string) {
screen.Clear()
win := NewWindow(FnEmptyWin)
workspace.LastCol().AddWindow(win)
}
func CmdOpen(fn string) {
screen.Clear()
var win *Window
win = FindWindow(fn)
if win == nil { // only load windows that do no already exists
win := NewWindow(fn)
workspace.LastCol().AddWindow(win)
win.LoadBuffer()
}
}
func CmdDel(args string) {
CurWin.Close()
}
func CmdEdit(args string) {
if len(args) < 2 {
return
}
switch args[0] {
case 'f':
var names []string
for _, win := range AllWindows() {
names = append(names, fmt.Sprintf(" %3s %s", win.Flags(), win.Name()))
}
printMsg("buffers:\n%s\n", strings.Join(names, "\n"))
case '!':
os.Chdir(CurWin.Dir())
cmd := strings.Split(string(args[1:]), " ")
path, err := exec.LookPath(cmd[0])
if err != nil { // path not found, break with silence
//printMsg("path not found: %s\n", cmd[0])
break
}
out, err := exec.Command(path, cmd[1:]...).Output()
if err != nil {
printMsg("error: %s\n", err)
break
}
// if command produced output, print it
outstr := string(out)
if outstr != "" {
printMsg("%s", outstr)
}
default:
printMsg("?\n")
}
}
|