r - 黑客在 Haven::read_sav() 的文件路径中包含特殊字符

Question

有seems to be an issue当文件路径中包含任何类型的特殊字符(仅包括文件名)时，请使用 Haven (1.1.1) 包。

假设这是一个真正的问题，我正在寻找某种巧妙的黑客/解决方案来解决它。

一个(不理想的)例子是让 R 将文件的副本放入更友好的路径中，并给它一个“更好”的文件名，然后使用 Haven 加载。如:

setwd("c:/temp")
fn <- "randóóm.sav"
file.copy(paste0("./äglæpath/", fn), fn)
file.rename(fn, gsub("[^-\\./a-zA-Z0-9[:space:]]", "", fn))
# now apply read_sav() to the copy

我正在使用:

R version 3.5.0 (2018-04-23)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Answer 1

不幸的是，我已经能够在 Windows 10 上使用标准版 haven 和 devtools 版本 haven 重现该问题。这似乎是避风港的已知错误。 #371

建议解决方法:

将文件移动到文件路径或文件名中没有德语变音符号的目录。因此，您的解决方法按所述工作。

> file.path(dataFilepath, dtaFilename)
[1] "äglæpath/randóóm.dta"

> dtaFilename <- gsub("[^-\\./a-zA-Z0-9[:space:]]", "", dtaFilename)
> bdatFilename <- gsub("[^-\\./a-zA-Z0-9[:space:]]", "", bdatFilename)
> savFilename <- gsub("[^-\\./a-zA-Z0-9[:space:]]", "", savFilename)
> dataFilepath <- gsub("[^-\\./a-zA-Z0-9[:space:]]", "", dataFilepath)

> file.path(dataFilepath, dtaFilename)
[1] "glpath/randm.dta"

> # Stata
> read_dta(dtaDest)
# A tibble: 150 x 5
   sepallength sepalwidth petallength petalwidth species
         <dbl>      <dbl>       <dbl>      <dbl> <chr>  
 1        5.10       3.5         1.40      0.200 setosa 
 2        4.90       3           1.40      0.200 setosa 
 3        4.70       3.20        1.30      0.200 setosa 
 4        4.60       3.10        1.5       0.200 setosa 
 5        5          3.60        1.40      0.200 setosa 
 6        5.40       3.90        1.70      0.400 setosa 
 7        4.60       3.40        1.40      0.300 setosa 
 8        5          3.40        1.5       0.200 setosa 
 9        4.40       2.90        1.40      0.200 setosa 
10        4.90       3.10        1.5       0.100 setosa 
# ... with 140 more rows
> 

Github 错误#371

Read_*() 不适用于文件路径中的特殊字符 #371 https://github.com/tidyverse/haven/issues/371

问题代码位于 haven/src/DFReader.cpp 中的 DfReader.cpp df.parse_dta() 594-612 中。

要重现的代码

require(haven)
require(stringi)

dtaURL  <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.dta?raw=true"
bdatURL <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sas7bdat?raw=true"
savURL  <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sav?raw=true"

dtaFilename   <- "randóóm.dta"
bdatFilename <- "randóóm.bdata"
savFilename   <- "randóóm.sav"

dataFilepath      <- "äglæpath"

if (!dir.exists(dataFilepath)) {
  dir.create(file.path(dataFilepath), showWarnings = TRUE)
}

dtaDest = file.path(dataFilepath, dtaFilename)
bdatDest = file.path(dataFilepath, bdatFilename )
savDest = file.path(dataFilepath, savFilename )

download.file(dtaURL, destfile = dtaDest, method = "wget", mode = "wb")
download.file(bdatURL, destfile = bdatDest, method = "wget", mode = "wb")
download.file(savURL, destfile = savDest, method = "wget", mode = "wb")


# Stata
read_dta(dtaDest)

# SAS
read_sas(bdatDest)

# SPSS
read_sav(savDest)

控制台输出

> require(haven)
> require(stringi)
> dtaURL  <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.dta?raw=true"
> bdatURL <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sas7bdat?raw=true"
> savURL  <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sav?raw=true"
> dtaFilename   <- "randóóm.dta"
> bdatFilename <- "randóóm.bdata"
> savFilename   <- "randóóm.sav"
> dataFilepath      <- "äglæpath"
> if (!dir.exists(dataFilepath)) {
+   dir.create(file.path(dataFilepath), showWarnings = TRUE)
+ }
> dtaDest = file.path(dataFilepath, dtaFilename)
> bdatDest = file.path(dataFilepath, bdatFilename )
> savDest = file.path(dataFilepath, savFilename )
> download.file(dtaURL, destfile = dtaDest, method = "wget", mode = "wb")
--2018-05-29 15:56:59--  https://github.com/tidyverse/haven/blob/master/inst/examples/iris.dta?raw=true
Resolving github.com (github.com)... 192.30.255.113, 192.30.255.112
Connecting to github.com (github.com)|192.30.255.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://github.com/tidyverse/haven/raw/master/inst/examples/iris.dta [following]
--2018-05-29 15:56:59--  https://github.com/tidyverse/haven/raw/master/inst/examples/iris.dta
Reusing existing connection to github.com:443.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.dta [following]
--2018-05-29 15:56:59--  https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.dta
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.52.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.52.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 8213 (8.0K) [application/octet-stream]
Saving to: '\344gl\346path/rand\363\363m.dta'

     0K ........                                              100% 1.56M=0.005s

2018-05-29 15:56:59 (1.56 MB/s) - '\344gl\346path/rand\363\363m.dta' saved [8213/8213]

> download.file(bdatURL, destfile = bdatDest, method = "wget", mode = "wb")
--2018-05-29 15:56:59--  https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sas7bdat?raw=true
Resolving github.com (github.com)... 192.30.255.113, 192.30.255.112
Connecting to github.com (github.com)|192.30.255.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://github.com/tidyverse/haven/raw/master/inst/examples/iris.sas7bdat [following]
--2018-05-29 15:56:59--  https://github.com/tidyverse/haven/raw/master/inst/examples/iris.sas7bdat
Reusing existing connection to github.com:443.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.sas7bdat [following]
--2018-05-29 15:56:59--  https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.sas7bdat
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.52.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.52.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 131072 (128K) [application/octet-stream]
Saving to: '\344gl\346path/rand\363\363m.bdata'

     0K .......... .......... .......... .......... .......... 39% 4.05M 0s
    50K .......... .......... .......... .......... .......... 78% 19.7M 0s
   100K .......... .......... ........                        100% 19.3M=0.02s

2018-05-29 15:57:00 (7.83 MB/s) - '\344gl\346path/rand\363\363m.bdata' saved [131072/131072]

> download.file(savURL, destfile = savDest, method = "wget", mode = "wb")
--2018-05-29 15:57:01--  https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sav?raw=true
Resolving github.com (github.com)... 192.30.255.113, 192.30.255.112
Connecting to github.com (github.com)|192.30.255.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://github.com/tidyverse/haven/raw/master/inst/examples/iris.sav [following]
--2018-05-29 15:57:01--  https://github.com/tidyverse/haven/raw/master/inst/examples/iris.sav
Reusing existing connection to github.com:443.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.sav [following]
--2018-05-29 15:57:01--  https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.sav
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.52.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.52.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 6690 (6.5K) [application/octet-stream]
Saving to: '\344gl\346path/rand\363\363m.sav'

     0K ......                                                100% 3.09M=0.002s

2018-05-29 15:57:01 (3.09 MB/s) - '\344gl\346path/rand\363\363m.sav' saved [6690/6690]

> # Stata
> read_dta(dtaDest)
Error in df_parse_dta_file(spec, encoding) : 
  Failed to parse <...>/äglæpath/randóóm.dta: Unable to open file.