On 11/12/2011 03:02 PM, AK wrote:
>>> command('let @a = "abc"') -ak
>>
>> Let's assume I'd like to do something like.
>>
>> reg = vim.eval('@0')
>> reg.replace('a','A')
>> vim.command('let @a = "%s"' % reg)
>>
>> This will fail if reg contains funny characters.
>> I think I need something like
>>
>> vim.command('let @a = "%s"' % vim_escape_function(reg))
>>
>> What are the rules to escape characters (or is there a
>> commodity function)?
>>
> Try single instead of double quotes. -ak
Python doesn't make a difference between single and double quotes,
so I assume you talk about replacing the single quioes within the vim
command.
Do you mean like this??
vim.command("let @a = '%s'" % vim_escape_function(reg))
Let's assume the register contained four characters "A" "B" "'" and "C"
Then python would construct the string
let @a = 'AB'C' , pass it to vim (and vim would fail)
Let's assume
the register would contain following string (the text between the double
quotes:
"ABC'
let @b = 'DEF"
Then python would construct following comand (text betwwen double quotes)
"let @a = 'ABC'
let @b = 'DEF'"
which would set two registers (That's almost like SQL injection)
This is why I wondered whether there is either
- a direct command in the python vim library, that
allows to set a register,
- or whether there is a python commodity function to do proper
escaping before calling vim.command()
- or whether there is a document explaining how to escape
arbitrary characters in a string, such, that I can assign
this string to a register.
If I rephrase my question for non python users:
How can I write a vim command, that puts fuloowing five characters in
register '0'
single_quite, double_quote, escape, carriage_return, tab
The escaped python string or above five characters would be.
'\'"\x1b\n\t' ( or "'\"\x1b\n\t" )
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