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-rw-r--r--cmd/ethereum/repl/repl_darwin.go127
1 files changed, 127 insertions, 0 deletions
diff --git a/cmd/ethereum/repl/repl_darwin.go b/cmd/ethereum/repl/repl_darwin.go
new file mode 100644
index 000000000..ba7dae996
--- /dev/null
+++ b/cmd/ethereum/repl/repl_darwin.go
@@ -0,0 +1,127 @@
+package ethrepl
+
+// #cgo darwin CFLAGS: -I/usr/local/opt/readline/include
+// #cgo darwin LDFLAGS: -L/usr/local/opt/readline/lib
+// #cgo LDFLAGS: -lreadline
+// #include <stdio.h>
+// #include <stdlib.h>
+// #include <readline/readline.h>
+// #include <readline/history.h>
+import "C"
+import (
+ "fmt"
+ "os"
+ "os/signal"
+ "strings"
+ "syscall"
+ "unsafe"
+)
+
+func initReadLine() {
+ C.rl_catch_sigwinch = 0
+ C.rl_catch_signals = 0
+ c := make(chan os.Signal, 1)
+ signal.Notify(c, syscall.SIGWINCH)
+ signal.Notify(c, os.Interrupt)
+ go func() {
+ for sig := range c {
+ switch sig {
+ case syscall.SIGWINCH:
+ C.rl_resize_terminal()
+
+ case os.Interrupt:
+ C.rl_cleanup_after_signal()
+ default:
+
+ }
+ }
+ }()
+}
+
+func readLine(prompt *string) *string {
+ var p *C.char
+
+ //readline allows an empty prompt(NULL)
+ if prompt != nil {
+ p = C.CString(*prompt)
+ }
+
+ ret := C.readline(p)
+
+ if p != nil {
+ C.free(unsafe.Pointer(p))
+ }
+
+ if ret == nil {
+ return nil
+ } //EOF
+
+ s := C.GoString(ret)
+ C.free(unsafe.Pointer(ret))
+ return &s
+}
+
+func addHistory(s string) {
+ p := C.CString(s)
+ C.add_history(p)
+ C.free(unsafe.Pointer(p))
+}
+
+var indentCount = 0
+var str = ""
+
+func (self *JSRepl) setIndent() {
+ open := strings.Count(str, "{")
+ open += strings.Count(str, "(")
+ closed := strings.Count(str, "}")
+ closed += strings.Count(str, ")")
+ indentCount = open - closed
+ if indentCount <= 0 {
+ self.prompt = "> "
+ } else {
+ self.prompt = strings.Join(make([]string, indentCount*2), "..")
+ self.prompt += " "
+ }
+}
+
+func (self *JSRepl) read() {
+ initReadLine()
+L:
+ for {
+ switch result := readLine(&self.prompt); true {
+ case result == nil:
+ break L
+
+ case *result != "":
+ str += *result + "\n"
+
+ self.setIndent()
+
+ if indentCount <= 0 {
+ if *result == "exit" {
+ self.Stop()
+ break L
+ }
+
+ hist := str[:len(str)-1]
+ addHistory(hist) //allow user to recall this line
+ self.history.WriteString(str)
+
+ self.parseInput(str)
+
+ str = ""
+ }
+ }
+ }
+}
+
+func (self *JSRepl) PrintValue(v interface{}) {
+ method, _ := self.re.Vm.Get("prettyPrint")
+ v, err := self.re.Vm.ToValue(v)
+ if err == nil {
+ val, err := method.Call(method, v)
+ if err == nil {
+ fmt.Printf("%v", val)
+ }
+ }
+}