add perl 'chomp'. too lazy to make it correct with regex

Signed-off-by: Jeff Carr <jcarr@wit.com>
This commit is contained in:
Jeff Carr 2019-06-06 15:59:49 -07:00
parent d7a665031c
commit f59e1b1f84
2 changed files with 76 additions and 3 deletions

73
chomp.go Normal file
View File

@ -0,0 +1,73 @@
package shell
/*
perl 'chomp'
send it anything, always get back a string
*/
import "log"
import "reflect"
import "strings"
import "bytes"
// import "github.com/davecgh/go-spew/spew"
func chompBytesBuffer(buf *bytes.Buffer) string {
var bytesSplice []byte
bytesSplice = buf.Bytes()
return Chomp(string(bytesSplice))
}
//
// TODO: obviously this is stupidly wrong
// TODO: fix this to trim fucking everything
// really world? 8 fucking years of this language
// and I'm fucking writing this? jesus. how the
// hell is everyone else doing this? Why isn't
// this already in the strings package?
//
func perlChomp(s string) string {
// lots of stuff in go moves around the whole block of whatever it is so lots of things are padded with NULL values
s = strings.Trim(s, "\x00") // removes NULL (needed!)
// TODO: christ. make some fucking regex that takes out every NULL, \t, ' ", \n, and \r
s = strings.Trim(s, "\n")
s = strings.Trim(s, "\n")
s = strings.TrimSuffix(s, "\r")
s = strings.TrimSuffix(s, "\n")
s = strings.TrimSpace(s) // this is like 'chomp' in perl
s = strings.TrimSuffix(s, "\n") // this is like 'chomp' in perl
return s
}
// TODO: fix this to chomp \n \r NULL \t and ' '
func Chomp(a interface{}) string {
// switch reflect.TypeOf(a) {
switch t := a.(type) {
case string:
var s string
s = a.(string)
return perlChomp(s)
case []uint8:
log.Printf("shell.Chomp() FOUND []uint8")
var u8s []uint8
u8s = a.([]uint8)
s := string(u8s)
return perlChomp(s)
case *bytes.Buffer:
log.Printf("shell.Chomp() FOUND *bytes.Buffer")
var tmp *bytes.Buffer
tmp = a.(*bytes.Buffer)
var bytesSplice []byte
bytesSplice = tmp.Bytes()
return Chomp(string(bytesSplice))
default:
log.Printf("shell.Chomp() NEED TO MAKE CONVERTER FOR type =", reflect.TypeOf(t))
}
return ""
}

View File

@ -44,7 +44,7 @@ func Script(cmds string) int {
lines := strings.Split(strings.Replace(cmds, "\r\n", "\n", -1), "\n")
for _, line := range lines {
line = strings.TrimSpace(line) // this is like 'chomp' in perl
line = Chomp(line) // this is like 'chomp' in perl
log.Println("LINE:", line)
time.Sleep(1)
Run(line)
@ -79,7 +79,7 @@ func SetStderr(newerr *os.File) {
func Run(cmdline string) string {
log.Println("shell.Run() START " + cmdline)
cmd := strings.TrimSpace(cmdline) // this is like 'chomp' in perl
cmd := Chomp(cmdline) // this is like 'chomp' in perl
cmdArgs := strings.Fields(cmd)
if (len(cmdArgs) == 0) {
callback(fmt.Errorf("cmdline == ''"), 0)
@ -191,7 +191,7 @@ func Run(cmdline string) string {
log.Println("shell.Run() END ", cmdline)
log.Println("shell.Run() calling callback() :")
callback(fmt.Errorf("no error"), 0)
return string(b)
return Chomp(b)
}
func Daemon(cmdline string, timeout time.Duration) int {