条件を満たす行を取り除く
Posted feedbacks - Smalltalk
Squeak Smalltalk で手続き的に。
1 2 3 4 5 6 7 8 9 10 11 | | file out |
file := FileStream fileNamed: 'test.txt'.
out := FileStream newFileNamed: 'out.txt'.
[file atEnd] whileFalse: [
| line |
line := file nextLine.
line first == $# ifFalse: [
out nextPutAll: line.
file peekLast == Character cr ifTrue: [out cr]]].
file close.
out edit
|


にしお
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