ASCII is a subset of Unicode, and UTF-8 preserves all octets from 0 to 127, including the control characters.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of Paul Gilmartin [[email protected]] Sent: Wednesday, February 9, 2022 9:55 PM To: [email protected] Subject: Re: Rocket Vim fileencoding (was: ... ASCII ...) On Thu, 10 Feb 2022 07:15:55 +0800, David Crayford wrote: >>>>> >>>> Have you played with Vim ":set fileencoding=..."? It works >>>> splendidly on Linux. >> It might be useful for generating tests or with such as: >> : w ! iconv -f IBM-1047 -t UTF-8 >codes > >I just tried it and it works. Rockets Vim port is surprisingly good. We >also have emacs and a lot of our young guys use that. I like Vim because >it's the default editor on *nix sysems and it's always there. > Which did you try? :set fileencoding= or : w ! iconv -f IBM-1047 -t UTF-8? The latter is outside Vim's control, of course. >I couldn't imagine using ISPF to edit Unix files but customers do it >which is why I'm researching this EBCDIC issue. > UNIX or CKD; if they're IBM-1047, ISPF is in its element. >I would avoid tagging files UTF-8. For text conversion to work in the >shell you need to set _BPXK_AUTOCVT=ALL, at which point almost all >programs that use enhanced ASCII >will break. That includes Python, Git, all of Rockets ported tools suite! > The important part of USASCII is a subset of UTF-8, so not much might break. I once ran a UTF-8 file through "iconv -f ISO859-1 -t IBM-1047". z/OS server undid the translation and it appeared intact on my UTF-8 desktop. Vim might operate similarly with autoconversion. What is Vim's internal character set? On either Linux or Mac it's very UTF-8 savvy. In a string such as " aπz " the l and h commands move one character, not one octet. But field width specifications such as for printf() count octets, not characters. Ugh! And while Linux Vim lets me write a buffer in IBM-1047, it doesn't work to re-edit it -- I have to iconv it to UTF-8 before editing. Is there a technique I don't know? -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
