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-> 符号处理的问题 #31

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bsspirit opened this Issue Dec 4, 2013 · 1 comment

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@bsspirit

bsspirit commented Dec 4, 2013

replace_assignment 函数没有判断"->"符号,虽然很少人会这样写,但语法上确实存在这个问题。

c('11',832)->x2
x2
[1] "11" "832"

tidy.source(text="c('11',832)->x2")
c("11", 832) <- x2

tidy.eval(text="c('11',832)->x2")
c("11", 832) <- x2
Error in eval(expr, envir, enclos) : object 'x2' not found

@yihui

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yihui commented Dec 4, 2013

谢谢,不过这个问题已经在R 3.0.2中修正了。

> formatR::tidy.source(text="c('11',832)->x2")
x2 <- c("11", 832) 
> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-pc-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8   
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
[1] formatR_0.10.3

@bsspirit bsspirit closed this Dec 4, 2013

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