Re: Potential flaw in grammar

Chris, Ahh, makes sense, i figured i couldn't be the first to notice that. Thanks! - Ken On Tue, Aug 26, 2014 at 10:36 AM, Christoph Becker <cmbecker69@gmx.de> wrote: > ken Koch wrote: > >> I've been looking over the grammar to test out a parser I've been >> building. I think i may have discovered a small flaw in the grammar >> definition for string literals. >> >> The problem is in the definition of heredoc-string-literal and >> nowdoc-string literal. The relevant definitions: >> >> from >> https://github.com/php/php-langspec/blob/master/spec/19-grammar.md#string-literals: >> >> heredoc-string-literal:: >> hd-start-identifier new-line hd-char-sequenceopt new-line >> hd-end-identifier ;opt new-line >> >> hd-start-identifier:: >> name >> >> hd-end-identifier:: >> name >> >> nowdoc-string-literal:: >> hd-start-identifier ' new-line hd-char-sequenceopt new-line >> hd-end-identifier ;opt new-line > > That's a problem with the rendering of the markdown (maybe the markdown > needs some escaping); the raw markdown[1] seems to be correct. > > A similar problem can be seen for the relational operators[2]--some of > them seem to be missing. > > [1] > > <https://raw.githubusercontent.com/php/php-langspec/master/spec/19-grammar.md> > [2] > > <https://github.com/php/php-langspec/blob/master/spec/10-expressions.md#user-content-relational-operators> > > -- > Christoph M. Becker >