View Source LogicalFile.Macros.LineComment (LogicalFile v1.0.3)

A sample implementation of a macro that supports single-line comments where a comment expression is recognised at the beginning of a line and it transforms the entire content of that line into whitespace. Note that this does not allow a line comment to appear at the end of an expression!

While a regular expression could be specified to recognise whitespace as part of the comment marker a more sophisticated implementation would allow the comment marker to appear after an expression. It is also left as an exercise to implement multi-line comments (a la C /.../)

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Functions

The general strategy is to process sections in order. For each section find any line matching the expression and transform the entire contents of the line into whitespace.

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process_comments(file, expr)

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The general strategy is to process sections in order. For each section find any line matching the expression and transform the entire contents of the line into whitespace.