pegjs

You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

History

David Majda ae89f5e469 PEG.js grammar: Change whitespace handling Before this commit, whitespace was handled at the lexical level by making tokens consume any whitespace coming after them. This was accomplished by appending \|__\| to every token rule. This commit changes whitespace handling to be more explicit. Tokens no longer consume whitespace coming after them and syntactic rules have to cope with it. While this slightly complicates the syntactic grammar, I think it's a cleaner way. Moreover, it is what JavaScript example grammar does. One small side-effect of thich change is that the grammar is now stand-alone (it doesn't require utils.js anymore).	10 years ago
..
parser.pegjs	PEG.js grammar: Change whitespace handling	10 years ago

David Majda ae89f5e469 PEG.js grammar: Change whitespace handling

Before this commit, whitespace was handled at the lexical level by
making tokens consume any whitespace coming after them. This was
accomplished by appending |__| to every token rule.

This commit changes whitespace handling to be more explicit. Tokens no
longer consume whitespace coming after them and syntactic rules have to
cope with it. While this slightly complicates the syntactic grammar, I
think it's a cleaner way. Moreover, it is what JavaScript example
grammar does.

One small side-effect of thich change is that the grammar is now
stand-alone (it doesn't require utils.js anymore).

parser.pegjs

PEG.js grammar: Change whitespace handling