"Wrong number of arguments" when filename contain space or special characters

[xlai]

This is a problem that applied to both mdb_table and read_mdb function when path or filename contains spaces or other specials.

filename <- "path to file\filename.mdb"
mdb_tables(filename)

produces the following error

 Wrong number of arguments.
Usage:
  mdb-tables [OPTION…] <file> - show MDB files tables/entries

Help Options:
  -h, --help               Show help options

Application Options:
  -S, --system             Include system tables
  -1, --single-column      One table name per line
  -d, --delimiter=char     Table name delimiter
  -t, --type=type          Type of entry
  -T, --showtype           Show type
  --version                Show mdbtools version and exit

Valid types are: form table macro systable report query linkedtable module relationship dbprop any all 

This can be resolved by adding shQuote() around file in the undelying system2 call.

[xlai]

Sorry I didn't check against your source code. It seems like it's only a problem with the version on CRAN with tag 0.1.2

[k5cents]

I don't think I intended to make this fix, but if it's fixed accidentally in v0.2.0 then fantastic! If not, feel free to submit a PR.

I can wait for a PR or I can submit v0.2.0 to CRAN, which I should have done a while ago.

[xlai]

thanks! I think i've patched the only one i found. I will close this issue now :)

[k5cents]

Whoops! I sent v0.2.0 to CRAN the other day, which has the other shQuote() added but not to the place your PR added it.

You can get the development version 0.2.0.9 from GitHub with your fix.

I will send your fix to CRAN in 0.2.1 later.