Add attribute escape sequence support in terminal::ansi, which handles
converting strings with ansi escape sequences into meli's internal
terminal structures in order to incorporate them into the UI.
If directory is invalid (i.e. has no {cur,new,tmp} subfolders), accept
it ONLY if it contains subdirs of any depth that are valid maildir
paths.
For example, this change will accept the following directory tree:
```
invalid_maildir
βββ valid_maildir
βββ cur
βββ new
βββ tmp
```
Execute user provided command invocations $CMD such as `editor_cmd` with
`/bin/sh` as `/bin/sh -c "$CMD"
Previously, user commands were split by whitespace which must trigger
erroneous behavior if quotes are involved.
Makefile displays a warning if $MANDIR is not in your manpaths or
$BINDIR is not in your $PATH. Expand paths $PREFIX (and by association $BINDIR and $MANDIR) before doing that validation or otherwise paths like '~/.local' and '/home/user/.local' will be erroneously reported different
If user config file overwrites a single attribute and not the others,
for example only bg:
"mail.listing.tag_default" = { bg = "Blue" }
The other attributes, in this case fg and attrs revert to the default
values of ThemeAttributeInner and not the default value for the key
"mail.listing.tag_default". As a result the above expands to:
"mail.listing.tag_default" = { fg = Color::Default, bg = "Blue", attrs
= Attr::Default }
This commit keeps the key value defaults, so the above should expand to:
"mail.listing.tag_default" = { fg = default_theme["mail.listing.tag_default"].fg, bg = "Blue", attrs
= default_theme["mail.listing.tag_default"].attrs }
Attribute links are not checked for validity in theme validation, and an
invalid link would cause a panic in is_cyclic.
This commit improves the theme validation errors by printing if the
error lies in a theme key or a link.
Text attributes have been rewritten as bit flags, so for example instead of
"BoldUnderline" you'd have to define "Bold | Underline" in your theme
settings.
Requested in #21
Manos Pitsidianakis