lib: Implement t_strsplit_tabescaped_inplace() This is a more efficient version of t_strsplit_tabescaped(), which modifies the input string instead of duplicating it.

lib: Add binary-safe tabescape

lib: Added t_str_tabunescape()

liblib: Added str_unescape_next()

Renamed str_tabescape_write() to str_append_tabescaped()

liblib: Added [tp]_strsplit_tabescaped()

Added str_tabunescape(). --HG-- branch : HEAD

Added str_append_tabunescaped(). str_tabescape*() now escapes also CR. Added unit tests. --HG-- branch : HEAD

Added str_tabescape*() to write escaped strings to Dovecot's IPC protocols. --HG-- branch : HEAD

Changed .h ifdef/defines to use <NAME>_H format. --HG-- branch : HEAD

Mailbox names are now sent through imap-quoter instead of just escaping it. This means that mailbox names that would require escapes are instead sent as literals now. --HG-- branch : HEAD

str_unescape(): return char* --HG-- branch : HEAD

Naming style changes, finally got tired of most of the typedefs. Also the previous enum -> macro change reverted so that we don't use the highest bit anymore, that's incompatible with old indexes so they will be rebuilt. --HG-- branch : HEAD

Use unsigned char* when accessing non-NUL terminating strings. Compiler warnings would then notify about accidentally passing them to functions which require them NUL-terminated. Changed a few functions to use void* to avoid unneeded casting. --HG-- branch : HEAD

Rewrote rfc822-tokenize.c to work one token at a time so it won't uselessly take memory, maybe also a bit faster. This caused pretty large changes all around. Also moved all string (un)escaping code to lib/strescape.c. --HG-- branch : HEAD