74 lines
3.8 KiB
Plaintext
74 lines
3.8 KiB
Plaintext
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What's new in QTERM for V4.3 - in no particular order:
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^\ P sends have some more sophisticated flow control, for both individual
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character transmission, and line breaks, based on echo of characters
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back from the remote system.
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When QTERM is in local echo mode <cr> characters receivced are expanded to
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<cr> / <lf> pairs, and if half duplex or split screen is invoked as well
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as local echo, locally typed <cr>'s also get expanded in the same manner.
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This makes local echo a bit more useful since it means that neither the
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local user nor someone talking remotely will need to add a <lf> after
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their <cr>'s - QTERM does it as needed.
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'q' option to make protocol transfers quiet
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'c' option to get Xmodem receive to start in Checksum mode
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Major overhaul of Kermit - the bugs in the 4.2g implementation have been
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fixed, and several extensions added: extended block checks, long packets,
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and server operation.
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!% m and !% o have become !& m and !& o, and a third option has been added:
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!& l to turn on and off "Looking for" logging. m and o are initially on,
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and l is off: !& l 0 forces it off, !& m 1 forces it on, and !& o switches
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to the other state.
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!@ and !# (numeric variable manipulation) have gained two counterparts:
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!$ and !% to set and test string variables (these include the parameters
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of the script)
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It is now possible to "type" through a waiting script: while a script is
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waiting for a match in a normal /send/expect/ line, or a ![ - or ![ :
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line, characters typed at the keyboard are sent to the modem, and two
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^\ escapes are recognised: ^\ . to send a break, and ^\ , to hang up.
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When expect string is matching (or not) in a .send.expect. line,
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the last 64 characters received from the modem are kept in the buffer
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used by the ![ - command, so that tests can be made later with ![ =
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(etc.) commands, this buffer is also used by the ![ : "wait for silence"
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command.
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!< - and !< . (read buffered from keyboard and read single character from
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keyboard) now take a variable name (i.e. a single letter). For !< -, the
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letter is the target string variable that will receive the input text,
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for !< . the numeric variable receives the value of the character typed.
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This means that !< = and !< , are no longer needed: !% and !# will permit
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testing keyboard input.
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Strings and variables can be used in lines: giving $a anywhere in a script
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line gets substituted by string variable a (and $1 becomes the first
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parameter to the script), similarly @a anywhere on a script line gets
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replaced by the numeric value of variable a.
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The VT100 emulation code has been almost totally re-written, and does a
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far better job than the 4.2 code. There are limits - double size characters
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can't be done, nor can alternate character sets, and some operations will
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take a long time (i.e. set up lots of delay). However, the special VT100.TC
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termcap file is no longer needed, since a standard VT100 termcap will
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suffice. However read QTERM.DOC for comments on how it behaves when certain
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screen codes are missing
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!~ ? to test the existance of a file has been split into two commands:
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!~ Y filename `label jumps if the file does exist, and !~ N filename `label
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jumps if the file doesn't exist - The second is most useful in a script
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when you only want to do something if a file exists (e.g. upload it, ^\ P
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it or whatever), that way !~ N allows a jump over the code if the file is
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not there.
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The ^\ D code has stopped using the BIOS to read the directory, instead
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it uses BDOS calls 17 and 18. The bad news is that the statistics line
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is not shown (maybe something will be put in for the next version), however
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the good news is that it will work under CP/M 3.0, and also this change
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has reduced QTERM's memory requirement by about 5 to 6 K.
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