5

我似乎找不到每行使用多个命令的示例。

例如，假设我想编写一个类似于 cisco ios 的 cli，您可能在一行中有多个级别的命令。

例如。第一个单词可能是“show”，然后当您键入“show”并点击选项卡时，将显示下一组选项（cisco 示例使用“？”来显示列表）。

eg:
gw1#show ?
  aaa                   Show AAA values
  access-expression     List access expression
  access-lists          List access lists
  accounting            Accounting data for active sessions
  adjacency             Adjacent nodes
  ..

gw1#show ip ?
  access-lists         List IP access lists
  accounting           The active IP accounting database
  admission            Network Admission Control information
  aliases              IP alias table
  arp                  IP ARP table
  ..

gw1#show ip interface ?
  ATM                 ATM interface
  Async               Async interface
  BVI                 Bridge-Group Virtual Interface
  CDMA-Ix             CDMA Ix interface
  ..

gw1#show ip interface

我正在考虑使用 readCharacter 一次读取一个字符，然后在看到空格后解析该行。

有没有其他人对这种类型的要求有任何 Jline 经验？

4

2 回答 2

7

使用https://github.com/jline/jline2/blob/master/src/test/java/jline/example/Example.java作为参考，您可能想尝试以下操作。它背后的关键思想是使用AggregateCompleter该类为您完成所有选项的合并。

List<Completer> completors = new LinkedList<Completer>();
                    completors.add(
                            new AggregateCompleter(
                                    new ArgumentCompleter(new StringsCompleter("show"), new NullCompleter()),
                                    new ArgumentCompleter(new StringsCompleter("show"), new StringsCompleter("aaa", "access-expression", "access-lists", "accounting", "adjancey"), new NullCompleter()),
                                    new ArgumentCompleter(new StringsCompleter("show"), new StringsCompleter("ip"), new StringsCompleter("access-lists", "accounting", "admission", "aliases", "arp"), new NullCompleter()),
                                    new ArgumentCompleter(new StringsCompleter("show"), new StringsCompleter("ip"), new StringsCompleter("interface"), new StringsCompleter("ATM", "Async", "BVI"), new NullCompleter())
                                    )
                            );
            for (Completer c : completors) {
                reader.addCompleter(c);
            }

使用上述运行修改后的 Example.java 后，输出将如下所示。

prompt> show 
show    
prompt> show 
aaa                 access-expression   access-lists        accounting          adjancey            ip                  
prompt> show ip 
ip    
prompt> show ip 
access-lists   accounting     admission      aliases        arp            interface      
prompt> show ip interface 
ATM     Async   BVI     
prompt> show ip interface A
ATM     Async   
prompt> show ip interface A
ATM     Async   
prompt> show ip interface ATM 
======>"show ip interface ATM "
prompt>
于 2014-01-09T22:58:16.467 回答
0

它可以通过使用AggregateCompleter来完成，如下所示：

ConsoleReader reader = new MultiWordConsoleReader();
List<Completer> completers = new ArrayList<Completer>();

completors.add(new AggregateCompleter(new StringsCompleter("show"), new StringsCompleter("aaa", "access"), new NullCompleter()));
completors.add(new AggregateCompleter(new StringsCompleter("show"), new StringsCompleter("ip"), new StringsCompleter("accounting", "arp"), new NullCompleter()));

for (Completer c : completors) {
    reader.addCompleter(c);
}
于 2017-09-11T09:58:18.070 回答