GNU FORTH是否有编辑器? [英] Does GNU FORTH have an editor?

问题描述

启动FORTH 的第3章，

现在，您已经将一个块设为当前"，您可以通过简单地键入单词"L"将其列出.与LIST不同，L不想以块号开头.而是列出当前块.

Now that you've made a block "current", you can list it by simply typing the word L. Unlike LIST, L does not want to be proceeded by a block number; instead it lists the current block.

运行180 LIST时，我得到

Screen 180 not modified     
0                                                                 
...                                                             
15                                                                 
 ok

但是当我运行L时，我得到一个错误

But when I run L, I get an error

:30: Undefined word
>>>L<<<
Backtrace:
$7F0876E99A68 throw 
$7F0876EAFDE0 no.extensions 
$7F0876E99D28 interpreter-notfound1 

我在做什么错了?

推荐答案

是的，gForth支持内部(BLOCK)编辑器.启动gforth

Yes, gForth supports an internal (BLOCK) editor. Start gforth

1. 类型:use blocked.fb(演示页面)
2. 类型:1 load
3. 键入editor

4. words将显示编辑器单词，

1. type: use blocked.fb (a demo page)
2. type: 1 load
3. type editor

4. words will show the editor words,

s b n bx nx qx dl il f y r d i t 'par 'line 'rest c a m  ok

键入0 l到描述编辑器的列表屏幕0，

type 0 l to list screen 0 which describes the editor,

Screen 0 not modified     
 0 \\ some comments on this simple editor                 29aug95py
 1 m marks current position        a goes to marked position       
 2 c moves cursor by n chars       t goes to line n and inserts    
 3 i inserts                       d deletes marked area           
 4 r replaces marked area          f search and mark               
 5 il insert a line                dl delete a line                
 6 qx gives a quick index          nx gives next index             
 7 bx gives previous index                                         
 8 n goes to next screen           b goes to previous screen       
 9 l goes to screen n              v goes to current screen        
10 s searches until screen n       y yank deleted string           
11                                                                 
12 Syntax and implementation style a la PolyFORTH                  
13 If you don't like it, write a block editor mode for Emacs!      
14                                                                 
15                                                                 
 ok

创建自己的阻止文件

要创建自己的新阻止文件myblocks.fb

1. 类型:use blocked.fb
2. 类型:1 load
3. 键入editor

1. type: use blocked.fb
2. type: 1 load
3. type editor

然后

1. 键入use myblocks.fb
2. 1 load将显示第1块(第0至15行).每16行包含64个字符)
3. 1 t将突出显示第1行
4. 输入i this is text到[i]插入第1行
5. 在编辑当前BLOCK之后，键入flush以便将BLOCK#1写入文件myblocks.fb

1. type use myblocks.fb
2. 1 load will show BLOCK #1 (lines 0 till 15. 16 Lines of 64 characters each)
3. 1 t will highlight line 1
4. Type i this is text to [i]nsert into line 1
5. After the current BLOCK is edited type flush in order to write BLOCK #1 to the file myblocks.fb

有关更多信息，请参见 gForth块

For more information see, gForth Blocks

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