Fixed length records: Difference between revisions
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(→{{header|Lua}}: added Lua solution) |
m (→{{header|REXX}}: changed whitespace and comments.) |
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=={{header|REXX}}== |
=={{header|REXX}}== |
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<lang rexx>/*REXX pgm reads |
<lang rexx>/*REXX pgm reads fixed─length 80 byte records; reverses each record, displays to term. */ |
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iFID= 'FIXEDLEN.TXT' /*the file's filename (used for input).*/ |
iFID= 'FIXEDLEN.TXT' /*the file's filename (used for input).*/ |
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call charin iFID, 1, 0 /*open the file, point rec pointer to 1*/ |
call charin iFID, 1, 0 /*open the file, point rec pointer to 1*/ |
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/* [+] just to be safe, position file.*/ |
/* [+] just to be safe, position file.*/ |
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do j=1 while chars(iFID) >= 80 /*read data records of LRECL ≡ eighty. */ |
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@.j= charin(iFID, , 80) /*read a data record of eighty bytes. */ |
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end /*j*/ |
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#= j - 1 /*adjust # of records (J is 1 too high)*/ |
#= j - 1 /*adjust # of records (J is 1 too high)*/ |
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do k=1 for # /* [↓] process all the records read. */ |
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say reverse(@.k) /* reverse a record and write to term. */ |
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end /*k*/ /*stick a fork in it, we're all done. */</lang> |
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{{out|output|text= when using the default input file:}} |
{{out|output|text= when using the default input file:}} |
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{{out}} |
{{out}} |
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