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Re^8: Reading tab/whitespace delimited text file

by reaper9187 (Scribe)
on Nov 04, 2012 at 19:18 UTC ( #1002235=note: print w/ replies, xml ) Need Help??


in reply to Re^7: Reading tab/whitespace delimited text file
in thread Reading tab/whitespace delimited text file

Why does the original code behave differently when i use the while(<FILEHANDLE>) loop as a file handle to read a particular section of code(say between line 2-10) instead of using EOF ..???


Comment on Re^8: Reading tab/whitespace delimited text file
Re^9: Reading tab/whitespace delimited text file
by Anonymous Monk on Nov 05, 2012 at 01:25 UTC
Re^9: Reading tab/whitespace delimited text file
by BrowserUk (Pope) on Nov 05, 2012 at 11:56 UTC
    Why does the original code behave differently when i use the while(<FILEHANDLE>) loop as a file handle to read a particular section of code(say between line 2-10) instead of using EOF ..???

    Because while( <DATA> ) { reads and discards a line each time it is executed. And that line contains a header (or data) that is required.

    If you need to skip 29 lines, do so before entering the while loop:

    <DATA> for 1 .. 29; until( eof( DATA ) ) { ...

    And to exit the loop after the 40th line has be read:

    until( eof( DATA ) ) { last if $. == 40; ...

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