【发布时间】:2019-09-28 09:06:15
【问题描述】:
我想在目录中查找文件,然后拆分路径名并将路径的每一部分打印在单独的行上:
(Directory working: '.')
allFilesMatching: '*.st' do: [ :ff | (ff name)
findTokens: '/' "Linux separator"
"splitOn: '/' -this also does not work"
do: [ :i|
i displayNl ]]
但是它给出了以下错误:
$ gst firstline.st
"Global garbage collection... done"
Object: '/home/abcd/firstline.st' error: did not understand #findTokens:do:
MessageNotUnderstood(Exception)>>signal (ExcHandling.st:254)
String(Object)>>doesNotUnderstand: #findTokens:do: (SysExcept.st:1448)
optimized [] in UndefinedObject>>executeStatements (firstline.st:3)
[] in Kernel.RecursiveFileWrapper(FilePath)>>filesMatching:do: (FilePath.st:903)
[] in Kernel.RecursiveFileWrapper>>namesDo:prefixLength: (VFS.st:378)
[] in File>>namesDo: (File.st:589)
BlockClosure>>ensure: (BlkClosure.st:268)
File>>namesDo: (File.st:586)
Kernel.RecursiveFileWrapper>>namesDo:prefixLength: (VFS.st:373)
Kernel.RecursiveFileWrapper>>namesDo: (VFS.st:396)
Kernel.RecursiveFileWrapper(FilePath)>>filesMatching:do: (FilePath.st:902)
File(FilePath)>>allFilesMatching:do: (FilePath.st:775)
Directory class>>allFilesMatching:do: (Directory.st:225)
UndefinedObject>>executeStatements (firstline.st:2)
错误信息真的很长很复杂!
findTokens 和 splitOn 都不起作用。
问题出在哪里,如何解决。
【问题讨论】:
标签: string split smalltalk gnu-smalltalk