Automatic handling of terminals is optional, but a mode which preserves them verbatim is necessary. For example, 1!:2&4 on windows appends CR, as a result you cannot accurately generate precise (binary) formats, like BMP or PDF, etc. Conversely, for input.
--- Chris Burke <[EMAIL PROTECTED]> wrote: > June Kim wrote: > > Python's way of solving this nasty problem is laying an abstract layer > > at the bottom: the universal newline feature. > > > > http://www.python.org/dev/peps/pep-0278/ > > > > When you open a file and read, all LF/CR/CRLF are translated into an > > identical entity, universal newline (\n). > > > > When programming, the programmer doesn't need to consider which > > platform he/she is on, or which platform the program will be used on. > > > > 2006/5/18, Miller, Raul D <[EMAIL PROTECTED]>: > > > >> The line delimiter for unix is LF. > >> > >> The line delimiter from the PC is CRLF. > >> > >> The line delimiter for mac is CR. > >> > >> Sometimes a trailing fragment (after the last end of line) > >> in a text file is treated as a valid line. Sometimes, > >> it's not. > >> > >> Conceptually, you could write a routine which accepts all > >> these standards. > > The "string" versions of the file functions do this conversion. For > example, fread reads the raw file, while freads assumes the file is > text, and converts any CRLF or CR to LF, and ensures the result ends in > LF. It would be useful to have this capability in the file foreigns, as > in Python. > > Do we need to worry about the CR delimiter in the old Mac? I thought > this was obsolete now, if not the new functions we discussed need to > take this into account - right now they assume sentences end in LF. > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
