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Script to check knitr version is high enough to render code blocks in…
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… challenges
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@sritchie73
sritchie73 committed Jun 5, 2015
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# Check the knitr version is high enough to render
# code blocks embedded in blockquotes (i.e. challenges and tool tips).
version.string <- packageDescription("knitr")$Version
version.numbers <- as.integer(strsplit(version.string, "\\.")[[1]])
if (version.numbers[1] <= 1 & version.numbers[2] <= 10 & version.numbers[3] < 12)
stop("knitr must be version 1.10.12 or higher")

3 comments on commit 7d92fce

@aammd
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@aammd aammd commented on 7d92fce Jun 5, 2015

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I love this!! very nicely done

@sritchie73
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Thanks!

@fmichonneau
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You can simply do:

if (packageVersion("knitr") < "1.10.12") stop("knitr must be version 1.10.12 or higher")

The fix allowing chunks to be quoted was introduced on April 19th (yihui/knitr@3f52d47) with version 1.9.20 (yihui/knitr@75a8ec0)

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