What is logical AND in Sed/Vim?

Question

I would like to get an AND -operator to the following Vim command

:command! -nargs=1 GrepSource :! grep <args> `sed -n 's/^source \(.*\)/\1/p' %`

such that I can use the command to find sources at

# source <path>
# . <path> 
source <path>
. <path>

I am not sure whether it is possible or not to get AND -operator to SED or Vim.

How can you add an AND -operator to the SED command?

Answer 1

You can just use Vim regular expressions to find the <path> name, instead of using sed:

:command! -nargs=1 GrepSource :exe printf("!grep '<args>' '%s'", matchstr(getline('.'), '^#\=\s*\%(source\|\.\)\s*\zs\f\+'))

I think that command should do what you want. You can use the next command to test what is happening ('exe' is changed to 'echo'):

:command! -nargs=1 GrepSourceTest :echo printf("!grep '<args>' '%s'", matchstr(getline('.'), '^#\=\s*\%(source\|\.\)\s*\zs\f\+'))

The command must be used on a line in one of the following forms:

# source <somefile>
# . <somefile>
source <somefile>
. <somefile>

Answer 2

I'm not clear what you are trying to achieve/searching for. Maybe if you elaborate what exactly are you trying to do and what the AND is supposed to do we could help more.

This solution executes from vim command:

grep PATTERN /some/path/*

If you are looking for files in a directory you would use:

ls /some/path | grep PATTERN

You can update relevant pieces of the command.

Anyway...

From your script I assume you have a line specifying path to a directory which you want to grep for something, e.g. you want to search path for PATTERN, you position cursor on the line with path, then you want to extract the path and grep it for the pattern with your command, example line in file:

source /some/path

This command should do what you expect:

:command! -nargs=1 GrepSource :exe printf("!grep '<args>' '%s'/*", substitute(
getline('.'), "\\%(source\\s*\\)\\(.*\\)$", "\\1",""))

With cursor on the line with path starting with word source you can execute the above command:

:GrepSource PATTERN

This will search files in '/some/path/' for word PATTERN.

I assume paths in your file don't end with slash '/' and I assume you want to search in files so I append '/*' at the end of path to search, ending with command:

grep PATTER /some/path/*

I have used substitute command that replaces

source /some/path

with

/some/path

Which is then used in printf to create the actual command.