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【Python】根据文件类型选择执行程序

作者:步山 / 发布于2014/11/10/ 469

本质上，这就是个go写的“文件关联程序”，notepad++的ntpexec插件我不太喜欢，确切的说我不喜欢按两次键，更不喜欢在编辑界面分出一块来，更喜欢跳出个执行界面，然后回车后消失这种。

用法很简单，保证生成的exec.exe和gcc、g++等程序都在path里，然后在notepad++的运行里添加如下两条命令：

cmd /k cd $(CURRENT_DIRECTORY) & exec $(FULL_CURRENT_PATH) & PAUSE & EXIT

cmd /k cd $(CURRENT_DIRECTORY) & exec -b=true $(FULL_CURRENT_PATH) & PAUSE & EXIT

分别用于run和build


	package main

	import (
	 "flag"
	 "fmt"
	 "os"
	 "os/exec"
	 "strings"
	)

	var (
	 cmd *exec.Cmd
	 mks bool
	)

	func main() {
	 flag.BoolVar(&mks, "b", false, " to build, not to run")
	 flag.Parse()
	 if flag.NArg() != 1 {
	 fmt.Println("usage a code file")
	 return
	 }
	 part := strings.Split(flag.Arg(0), ".")
	 each := len(part)
	 if each <= 1 {
	 fmt.Println("cannot get file type")
	 return
	 }
	 attr := part[each-1]
	 obey := strings.Join(part[:each-1], ".") + ".exe"
	 if mks {
	 switch attr {
	 case "c":
	 cmd = exec.Command("gcc", "-O3", "-o", obey, flag.Arg(0))
	 case "cpp":
	 cmd = exec.Command("g++", "-O3", "-o", obey, flag.Arg(0))
	 case "go":
	 cmd = exec.Command("gofmt", "-w", flag.Arg(0))
	 cmd.Run()
	 cmd = exec.Command("go", "build", flag.Arg(0))
	 default:
	 fmt.Println("cannot build this file")
	 return
	 }
	 } else {
	 switch attr {
	 case "c":
	 cmd = exec.Command("gcc", "-W", "-Wall", "-o", obey, flag.Arg(0))
	 case "cpp":
	 cmd = exec.Command("g++", "-W", "-Wall", "-o", obey, flag.Arg(0))
	 case "go":
	 cmd = exec.Command("gofmt", "-w", flag.Arg(0))
	 cmd.Run()
	 cmd = exec.Command("go", "run", flag.Arg(0))
	 case "lsp":
	 cmd = exec.Command("lisp", flag.Arg(0))
	 case "py":
	 cmd = exec.Command("python", flag.Arg(0))
	 default:
	 fmt.Println("cannot run this file")
	 return
	 }
	 if attr == "c" || attr == "cpp" {
	 cmd.Stdout = os.Stdout
	 cmd.Stderr = os.Stderr
	 cmd.Run()
	 cmd = exec.Command(obey)
	 }
	 }
	 cmd.Stdout = os.Stdout
	 cmd.Stderr = os.Stderr
	 cmd.Stdin = os.Stdin
	 cmd.Run()
	 if !mks {
	 if attr == "c" || attr == "cpp" {
	 os.Remove(obey)
	 }
	 }
	}

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