validate.language: Validate user-supplied file to translate iatgen generated QSF file
Description
The validate.language function reads in csv file which is expected to contain
2 columns and 28 rows:
the first column contains the english language text (as compared to the template file)
the second column contains the translation of the first column in a target language
The first rows contains heading -- heading of the first column is "en" for English
and the heading of the second colum is iana formatted target langugage specifier.
Usage
validate.language(file, src_lang = "en")
Value
Heading of the second column (language identifier, class: character) if successful, NULL if error
Arguments
file
Source CSV file to validate
src_lang
Source language -- "en" for english is the only supported one.