Multi line string editing

[hvr]

I'm writing down this feature request in case somebody may be interested implementing this... :-)

Haskell2010 allows for multi-line strings via \ \-gaps (w/o requiring to invoke TH+QQ which IMO is overkill if it's just to be able to write here-docs-ish multi-line strings), e.g.

longStr = "Lorem ipsum dolor sit amet, \
          \consectetur adipiscing elit, \
          \sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. \
          \Ut enim ad minim veniam, \
          \quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat."

haskell-mode could provide a way to "zoom" (think of a lens =) ) into that string-literal via a temporary buffer, allowing to edit the string, and when finished, update the string-literal in the Haskell code.

One may optionally want to allow to convert \n to/from newlines in the string-buffer-view. As well as allow to convert string-literals with \ \-gaps to ones w/o such gaps (this is sadly needed when enabling CPP).

See haskell-string-literal-decode1 where I included support for string-gaps while decoding (with this ticket's feature in mind...)

[gracjan]

Thanks! If you would like to split some smaller well defined tasks then you could create more issues in github describe in greater detail what is to be done and put `well-defined-task` label on them. There are people out there that do not know where and how to start hacking on haskell-mode and `well-defined-task` label helps them to get started.

[gracjan]

I do not see temporary buffer as a good design in usability terms.

Indentation supports multiline strings and this has to be good enough for now.