Greetings, Christopher Faylor! >>>> >> > $ cat >a.dat >>>> >> > /proc/registry/HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/Syst >>>> >> > emBootDevice >>>> >>>> > This trailing NUL character was always there, already with Cygwin 1.5. >>>> > It's part of the file content. If strings are stored with a trailing >>>> > NUL in a file, you don't want Cygwin to remove it for you, right? >>>> >>>> Wrong. The training NULL is a string value terminator for REG_SZ variables, >>>> also a string separator for REG_MULTI_SZ ones. (Which ends with a spare >>>> NULL) >>>> It must not be exposed to the user. >> >>> I disagree. When you're using tools like regtool, you're right. But >>> when accessing the registry as *files* via the virtual /proc filesystem, >>> you want the file content. >> >>Yep. And I certainly not expect the NULL in text files. You know, not every >>console program is binary-safe when working with STDIO? Not even cygwin, as we >>can see in this thread. >> >>> And the file contains the trailing NUL in REG_SZ and REG_EXPAND_SZ values, >>> and multiple NULs in REG_MULTI_SZ values. >> >>That's right and true, when you're working with interface directly, but... all >>the programs I've used in the past, and all the interfaces, they do not expose >>trailing NULL to the client application. >>In this case, /proc/registry is an interface, but cat is the application.
> NAME > cat - concatenate files and print on the standard output > I don't see anything in cat's description which claims it should know > that some files are special and should be handled differently. I didn't said about cat, but rather about file it reading from. >>> What do you suppose Cygwin should do with the NULs in REG_MULTI_SZ values? >>> Just remove them? >> >>Convert them to appropriate EOL sequences. And back to NULL's on write. As per >>definition of a text as "multiple strings". >>You don't need to argue over it, just document it properly :) > Converting a NUL to a EOL would be very strange behavior. Strange? I don't think so. I expect text data from text file. Not binary stream. > I don't think you really know what you're asking for. I know. Look at windows own regedit and Registry Browser FAR plugin as two examples. They do such two-way conversion transparently for user. -- WBR, Andrey Repin (anrdae...@freemail.ru) 31.05.2010, <3:29> Sorry for my terrible english... -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
