Remove invalid \n in JSON

[katrinleinweber]

While implementing #31 and switching from rjson to jsonlite I noticed that some fields contain a insufficiently escaped \ns. This results in lexical error: invalid character inside string..

@ceb15: Please consider ensuring that those are escaped as \\n already BacDive or (I presume) during JSON serialisation.

I'll parse them away for now.

[katrinleinweber]

Ah, no, sorry! It might not be an issue in the BacDive data, but in the way R expects the escape sequences: jeroen/jsonlite#47. I wonder whether it might be possible to detect an R client, and then deliver \\n instead of \n dynamically?

[katrinleinweber]

Fixed by cae151d.

[katrinleinweber]

Whoa! The above dataset doesn't contain that sample any more:

[katrinleinweber]

BacDiveR/R/retrieve_data.R

Lines 94 to 99 in cae151d

	gsub(
	pattern = "[[:space:]]+",
	replacement = " ",
	perl = TRUE,
	# Prevent "lexical error: invalid character inside string."
	# https://github.com/jeroen/jsonlite/issues/47

is a bit stupid. There should be a specific purging of invalidly escaped characters, not of all space characters.

[katrinleinweber]

Since this changes the output datasets, it might as well be the reason to bump the semantic version to 1.0. #14 also supports this.

[katrinleinweber]

tested with retrieve_data("Bacillus"), which downloaded about 1.3k datasets without escaping errors.

[katrinleinweber]

No update to v1.0 after all, since some other kinks should be ironed out first (#68, #84, etc). v0.5 it is!