HP-UX Reference (11i v2 03/08) - 1 User Commands N-Z (vol 2)

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vi(1) vi(1)

International Code Set Support

Single- and multi-byte character code sets are supported.

WARNINGS

See also the WARNINGS section in ex(1).

Program Limits

vi places the following limits on ﬁles being edited.

Maximum Line Length

4096 characters including 2-3 bytes for overhead. Thus, a line length up to 4092 characters should cause

no problem.

If you load a ﬁle that contain lines longer than the speciﬁed limit, the lines are truncated to the stated

maximum length. Saving the ﬁle will write the truncated version over the original ﬁle, thus overwriting

the original lines completely.

Attempting to create lines longer than the allowable maximum for the editor produces a

line too

long error message.

Maximum File Size

The maximum ﬁle length of 234,239 lines is silently enforced.

Other limits

• 256 characters per global command list.

• 128 characters in a ﬁle name in vi or ex open mode. On short-ﬁle-name HP-UX systems, the

maximum ﬁle name length is 14 characters.

• 128 characters in a previous insert/delete buffer.

• 100 characters in a shell-escape command.

• 63 characters in a string-valued option (

:set command).

• 30 characters in a program tag name.

• 32 or fewer macros deﬁned by

map command.

• 512 or fewer characters total in combined

map macros.

Do not use the

-C option to edit unencrypted ﬁles. The -C option is meant to be used only on ﬁles that

are already encrypted. If the -C option is used on ﬁles which are not yet encrypted, a write in the edit

session is likely to corrupt the ﬁle.

AUTHOR

vi was developed by the University of California, Berkeley. The 16-bit extensions to vi are based in

part on software of the Toshiba Corporation.