Hello hackers, I'm working on a very small patch to add syntax error localisation on the client side in psql, as it seems to be the place. Something like:
ERROR: syntax error at character 12345 QUERY: ... WHERE foo IS NUL AND ... QUERY: ^ My current issue is how to build the query excerpt to be displayed. I'm in the "psql/common.c" file. The query is a char*, and I guess it is in the client encoding, so that one character is not one byte. My first idea was to transform the char into a wchar and then work directly and simply on the wchar string (to fix tabs and so) ... However, although I have found a function to build the wchar string (pg_mb2wchar), I haven't found the reverse (yet) :-(, that is to convert my wchar extract to a char string compatible with the client encoding. Is there such a function somewhere? It seems that wchar is a one-way type, once you're there you're stuck with it:-( If not, what are the other options? The issue is to be able to work on a constant width string without having to care about different mb encodings, otherwise the code is going to be a little bit tricky... I guess I can do it, but the reverse conversion function looked more appealing to me;-) Or am still I off my shoes? (translator: a cote de mes pompes;-); Thanks, for any advice on this point or others, have a nice day, -- Fabien Coelho - [EMAIL PROTECTED] ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
