Re: coloring substitution seems to eat next line.

[Roman Perepelitsa <roman.perepelitsa@gmail.com>]

On Thu, Nov 10, 2022 at 1:44 AM Ray Andrews <rayandrews@eastlink.ca> wrote:
>
>      cc[$aa]=$( print -r $cc[$aa] | sed -rn
> "s/($filter)/\x1b\[$color;1m\1\x1b\[0m/${sed_case}gp" )
>
> ... that's the sed version working fine.  But this:
>
>      cc[aa]=(
> ${${cc[aa]}//(#b)((#i)${filter})/$'\e[31;1m'${match[1]}$'\e[0m'} )

Differences in the second version compared to the first:

- aa instead of $aa
- slice assignment instead of scalar (almost certainly unintended)
- hardcoded (#i) instead of $sed_case
- hardcoded 31 instead of $color
- $filter treated as a literal instead of regex

Given that the second version works without errors, I assume that cc
must be a regular (not associative) array. This means you can replace
the whole loop with this:

  local MATCH MBEGIN MEND
  cc=(${cc//(#m)$~zsh_case$filter/$'\e[31;1m'$MATCH$'\e[0m'})

Here's a test:

  () {
    emulate -L zsh -o extended_glob
    local cc=(/foo/Zsh/bar /baz /ZSHzsh /zsh-zsh)
    local filter=zsh
    local zsh_case='(#i)'
    local MATCH MBEGIN MEND
    cc=(${cc//(#m)$~zsh_case$filter/$'\e[31;1m'$MATCH$'\e[0m'})
    print -rC1 -- ${(qqqq)cc}
    print -rC1 -- $cc
  }

> /aWorking/Zsh                            disappears going in but seems
> to be there going out , but not colored

You can debug this by printing all relevant parameters.

    print -r -- "going in: $cc[aa]"
    typeset -p cc aa filter
    ...
    typeset -p cc
    print -r -- "coming out: $cc[aa]"

After that you can reproduce and dissect the issue in isolation. You
can also ask other people for help and give them everything they need
to reproduce the problem.

Roman.