id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
1467	Hash-prefixed numbers cause confusing error message in scripts	sjamaan	sjamaan	"As pointed out by erkin on IRC, when you run a script with `-ss` which contains something like `#0`, the error message you get is confusing if you don't know about csi's history references (especially given that this is a script, not manual input).

The error is:

{{{
Error: history entry index out of range: 0
}}}

If this is the result of running a long script that somewhere contains `#0`, this doesn't point to the location of the issue either.

Proposed possible improvements:

- Add the `#` to the error message so it's clear that this syntax is causing it, even if you don't know what a ""history index"" is.
- Include the line number (part of a larger issue in evaluated script code, and the hardest to implement)
- Disable history syntax when running with `-s` or `-ss`."	enhancement	new	major	5.1	core libraries	5.0.0		read syntax, history references, scripts, errors		easy