CODEWITHSUNDEEP
lua
John
John

Reputation: 3105

How to clear multi-line command in Lua interpreter?

For example, if I'm writing a multiline command in Python, I can just press ctrl-c.

In Lua, for one liners, I could press ctrl-u to clear a single line, but that doesn't do anything for multi-line functions, etc. ctrl-c in Lua quits the interpreter.

Edit: As an example say I'm writing a function in Lua:

>> function Test()
..> print 'Test'
..> e

At this point, I'm about to write end and I realize I didn't want to call the function Test(), rather I wanted to call it Test123(), how would I break out of this like with Python's ctrl-c?

Upvotes: 4

Views: 1354

Answers (2)

lhf
lhf

Reputation: 72312

Even when Lua is reading multiline statements, it is reading it line by line by calling readline. The effect is that you can only edit the current line, not the whole multiline.

The same thing seems to happen in Python (when multiline statements are signaled by a \ continuation). However, Python seems to handle ctrl-c different from Lua: it somehow catches ctrl-c and returns to the prompt, whereas Lua has not signal handler for ctrl-c set during input and so aborts the program, which is the default action.

Upvotes: 1

Paul Kulchenko
Paul Kulchenko

Reputation: 26744

You can always type ';', which will terminate the current command. You will get a syntax error in this case (as the statement is not complete), but you can then use parts of your command for a new command.

Upvotes: 3

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