Hi,
The result of as,character() on 'srcref' objects doesn't have the closing ')'
in some cases involving 'quote':
> e4 <- quote({2+2})
> class(attr(e4, "wholeSrcref"))
[1] "srcref"
> as.character(attr(e4, "wholeSrcref"))
[1] "e4 <- quote({2+2}"
As a result printing the object also lacks it and gives an incomplete
expression:
> attr(e4, "wholeSrcref")
e4 <- quote({2+2}
It seems that it is the top level quote that suffers from this. Here the inner
'quote' has the matching ')' but the outer one doesn't:
> e5 <- quote({quote({2+2})})
> class(attr(e5, "wholeSrcref"))
[1] "srcref"
> attr(e5, "wholeSrcref")
e5 <- quote({quote({2+2})}
> as.character(attr(e5, "wholeSrcref"))
[1] "e5 <- quote({quote({2+2})}"
> attributes(e5)
...
$wholeSrcref
e5 <- quote({quote({2+2})}
Attribute 'wholeSrcref' seems undocumented but it is of class 'srcref' which is
documented (eg ?srcref) and has supporting methods.
Georgi Boshnakov
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