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The WinMergeFile difference output below illustrates the work of Source Filter, with default input parameters. The backup version of the input (which shows the input provided) is on the right, the filtered version on the left. Grey lines on the left hand window pane are deleted lines, yellow indicates different lines.

WinMerge is freeware from http://winmerge.sourceforge.net/ and is highly recommended for use as a check on SourceFilter operations...
winmergtest1
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