开始 FORTH 的第 3 章说,
现在您已经创建了一个“当前”块,您可以通过简单地输入单词来列出它
L。与 不同LIST,L不希望按块号进行处理;相反,它列出了当前块。
当我跑步时180 LIST,我得到
Screen 180 not modified
0
...
15
ok
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但是当我运行时L,我收到一个错误
:30: Undefined word
>>>L<<<
Backtrace:
$7F0876E99A68 throw
$7F0876EAFDE0 no.extensions
$7F0876E99D28 interpreter-notfound1
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我究竟做错了什么?
小智 8
是的,gForth 支持内部 (BLOCK) 编辑器。开始前进
use blocked.fb演示页面)1 loadeditorwords 将显示编辑器的话,
s b n bx nx qx dl il f y r d i t 'par 'line 'rest c a m ok
Run Code Online (Sandbox Code Playgroud)键入0 l以列出描述编辑器的屏幕 0,
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
Run Code Online (Sandbox Code Playgroud)创建您自己的新块文件 myblocks.fb
use blocked.fb1 loadeditor然后
use myblocks.fb1 load 将显示 BLOCK #1(第 0 行到第 15 行。16 行,每行 64 个字符) 1 t 将突出显示第 1 行 i this is text到[I] nsert成1行flush以将 BLOCK #1 写入文件后myblocks.fb有关更多信息,请参阅gForth 块
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