* lisp/progmodes/ruby-mode.el (ruby-font-lock-keywords): Move `at_exit'
and `callcc' to the "methods with required arguments" section,
they need a block argument. Remove a `throw' duplicate.
Fixes: debbugs:17733
* lisp/progmodes/ruby-mode.el (ruby-font-lock-keywords): Use
`font-lock-constant-face' for nil, true and false. Highlight
`self' as a keyword.
* progmodes/ruby-mode.el (ruby-toggle-string-quotes): New command that
allows you to quickly toggle between single-quoted and double-quoted
string literals.
Backtrack one char if the global/char-literal var matcher hits
inside a string. The next char could be the beginning of an
expression expansion.
* test/automated/ruby-mode-tests.el
(ruby-interpolation-after-dollar-sign): New test.
* lisp/progmodes/ruby-mode.el (ruby-expression-expansion-re):
Match special global variables without curlies, too.
(ruby-font-lock-keywords): Simplify the matcher for special global
variables. Don't require a non-word character after the variable.
Fixes: debbugs:17057
inconsistent second element of the list returned by
`smie-indent--parent'.
(ruby-font-lock-keywords): Disqualify any identifier before `=' as
method call.
* lisp/progmodes/ruby-mode.el (ruby-font-lock-keywords): For built-ins
that require arguments, check that they're followed by something that
looks like argument.
* lisp/progmodes/ruby-mode.el (ruby-smie--implicit-semi-p): Check for
`:' before binary operators. Don't check for `:'
before `[' and `(', or their syntax status. A percent literal
can't end with either.
* lisp/progmodes/ruby-mode.el (ruby-align-chained-calls): New option.
(ruby-smie-grammar): Make "." right-associative. Make its priority
lower than the ternary and all binary operators.
(ruby-smie-rules): Indent "(" relative to the first non-"."
parent, or the first "." parent at indentation. Use
`ruby-align-chained-calls' for indentation of "." tokens.
* test/automated/ruby-mode-tests.el (ruby-align-chained-calls):
New test.
Fixes: debbugs:16593
* lisp/progmodes/ruby-mode.el (ruby-alignable-keywords): New constant.
(ruby-align-to-stmt-keywords): Change the default value. Use
`ruby-alignable-keywords' to generate the possible customization
choices.
(ruby-smie-rules): Instead of using a hardcoded list of alignable
keywords, check against the value of `ruby-alignable-keywords'
(http://lists.gnu.org/archive/html/emacs-devel/2014-01/msg01439.html).
* lisp/progmodes/ruby-mode.el (ruby--at-indentation-p): New function,
extracted from `ruby-smie-rules'.
(ruby--electric-indent-chars): New variable.
(ruby--electric-indent-p): New function.
(ruby-mode): Use `electric-indent-functions' instead of
`electric-indent-chars'.
option.
(ruby-smie--indent-to-stmt-p): Use it.
(ruby-smie-rules): Revert the logic in the handling of `when'.
Expand the `begin' clause to handle `ruby-align-to-stmt-keywords'.
(ruby-deep-arglist, ruby-deep-indent-paren)
(ruby-deep-indent-paren-style): Update docstrings to note that the
vars don't have any effect with SMIE.
* test/automated/ruby-mode-tests.el: Add tests for
`ruby-align-to-stmt-keywords'.
* test/indent/ruby.rb: Update examples to reflect the lack of change in
default indentation of `begin' blocks.
Fixes: debbugs:16182
first arg to be a string (fixed dead code), or an operator symbol.
(ruby-smie--forward-token): Tokenize ` @ ' before strings and
operator symbols.
(ruby-smie-rules): Remove parent token check in the `.' clause, it
did nothing. Don't respond to `(:after ".")', it will be called
with :before anyway. Remove the ` @ ' rule, it didn't seem to
change anything. Only return indentation for binary operators
when they are hanging. De-dent opening paren when its parent is
`.', otherwise it looks bad when the dot is not at bol or eol.
Fixes: debbugs:16182
* lisp/progmodes/ruby-mode.el (ruby-smie-rules): Return nil before
open-paren tokens when preceded by a open-paren, too.
(ruby-smie-rules): Handle virtual indentation after open-paren
tokens specially. If there is code between it and eol, return the
column where is starts.
* test/indent/ruby.rb: New examples.
* lisp/progmodes/ruby-mode.el (ruby-mode-syntax-table): Don't modify
syntax for `?'.
(ruby-expr-beg): Expect that `!' will have syntax class "symbol"
where appropriate already.
(ruby-syntax-propertize-function): Propertize `?' and `!' at the
end of method names.
