Tandy 1000 MS-DOS Reference Manual page 103

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Chapter 6 / Command Reference
ILBn sets the internal line buffer to the number of lines speci-
fied by
n.
Files that have more than this number of consecutive,
non-matching lines cause the comparison to cancel. If you omit
this parameter, FC uses 100.
IN displays the line numbers in an ASCII comparison.
IT does not expand tabs to spaces. The default is to treat tabs as
spaces to eight column positions.
IW causes FC to compress white spaces (tabs and spaces) during
the comparison. When you use IW, FC interprets multiple contig-
uous white spaces as one white space. Note that although FC
compresses white spaces, it does not ignore them. (The two
exceptions are any beginning and ending white spaces on a line,
which FC does ignore.) For example (an underscore represents a
white space):
______More__data_to_be_found __
matches:
and:
________Mo r e da t
a_
t o_be f
0
un
d _
but does not match:
______Moredata_to_be_found
Use the IW parameter in source file comparisons only.
Inumber specifies the number of lines that must match for the
file to be considered as matching after FC finds a difference.
number can be in the range 1 to 9. If you omit number, FC uses
2. Use this parameter in source file comparisons only.
Notes and Suggestions
• The two kinds of comparisons are line-by-line and byte-by-
byte.
• In a line-by-line comparison, FC marks off blocks of non-
matching lines, beginning each block with the last matching
line, and ending it with the next matching line. Following is
an example.
89