Date: Tue, 25 Mar 1997 22:11:03 GMT From: Bob Bishop <rb@gid.co.uk> To: brian@awfulhak.demon.co.uk, brian@utell.co.uk Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Backspace = ^H Message-ID: <l03020902af5dfb4c3703@[194.32.164.2]> In-Reply-To: <199703251021.KAA28724@shift.lan.awfulhak.org> References: <5h2c01$4i2@reader.seed.net.tw> <5h6e83$1mk@ui-gate.utell.co.uk> <E7KvDC.ILE@nemesis.lonestar.org>
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Both ASCII and ITU/T alphabet no. 5 (aka ISO 646 7 bit code) define ^H as backspace (BS) and ^? as delete (DEL). The notes on the ISO code table make it clear that BS is intended to be used eg for overprinting characters to get accents (think hard copy here). DEL is all 1's, so if you miskey when punching your paper tape you can back up the punch and zap the bad character with DEL (readers ignore the DEL character). Because it's all 1's (ie all holes) you can zap any other character. So yes, >...it's "normal" to press DEL to rubout ...and it's arguable that Hayes have it wrong... -- Bob Bishop (0118) 977 4017 international code +44 118 rb@gid.co.uk fax (0118) 989 4254 between 0800 and 1800 UK
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