For example, I want the next C grammar to define that a space comes between any keyword and an opening parenthesis. “if (foo)” would be legal, but “if(foo)” would not. Not a warning, not optionally checked, but actually forbidden by the language parser. Flat out illegal. Can’t compile.

“Current optical tags, such as barcodes, must be read within a short range and the codes occupy valuable physical space on products. We present a new low-cost optical design so that the tags can be shrunk to 3mm visible diameter, and unmodified ordinary cameras several meters away can be set up to decode the identity plus the relative distance and angle.”

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Maciej Konieczny

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