Re: Applying batch file to a text file.

On 2013-11-13 15:10, john Culleton wrote:
> I want to apply a batch file "foo" to a text file "bar".
> The commands in foo are of the form:
>
> :% s/elephant/\\idx{&}/g
>
> (I can delete the : if that helps.)
>
> So given these facts what does the command line for vim or ex
> look like? In particular I need to know how to get both foo and
> bar into the command. This is to build an index for TeX.

It sounds like you want the ":source" command, so you can do

vim file_to_edit.tex
:source batch_script.vim

Just make sure that it's only run once or that you take extra pains
to ensure your search term excludes previously-replaced items.
Otherwise, subsequent runs could end up with the following
replacements:

\\idx{elephant}
\\idx{\\idx{elephant}}
\\idx{\\idx{elephant}}}

Also note that, without "\<...\>" guards, order may matter:

:%s/politics/dogma/g
:%s/dog/cat/g

can result in "The president talked about politics and the Whitehouse
dog" changing into "The president talked catma and the Whitehouse
cat"

This can be worked around, most atomically by creating a dictionary
and then using a regexp that finds all words, then replaces them by
trying to look them up in the mapping-dictionary:

:let my_map={}
:let my_map["old"] = "NEW!"
:let my_map["dog"] = "cat"
:" lots more mappings can get created here
:%s/\w\+/\=has_key(my_map, submatch(0))?my_map[submatch(0)]:submatch(0)/g

Hope this gives you some ideas to work with.

-tim




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