Paul Eggert <[email protected]> wrote: > I don't see the bug here. The Bison documentation says:
> Bison does not look for trigraphs, so if braced code uses > trigraphs you should ensure that they do not affect the nesting of > braces or the boundaries of comments, string literals, or character > constants. The problem lies not in trigraphs in braced code, but tri- graphs in "literal string tokens" (so "token names" was probably a misleading error on my part). Cf. "3.2 Symbols, Terminal and Nonterminal": | All the escape sequences used in string literals in C | can be used in Bison as well, except that you must not | use a null character within a string literal. Also, | unlike Standard C, trigraphs have no special meaning in | Bison string literals, nor is backslash-newline | allowed. A literal string token must contain two or | more characters; for a token containing just one | character, use a character token (see above). So the string "??=" is allowed in literal string tokens, but the generated Java code does not compile. Tim
