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Changes for 5.32
Changes for 5.31
Changes for 5.30
Changes for 5.29
Changes for 5.28
Changes for 5.27
Changes for 5.26
Changes for 5.25
Changes for 5.24
Changes for 5.21
Changes for 5.20
Changes for 5.19
Changes for 5.18
Changes for 5.17
Changes for 5.16
Changes for 5.15
Changes for 5.14
Changes from v4 to v5
See also the user visible changes for
Note: This was an unfinished interim release that was never publicly
- Changes in analysis of nested syntactic constructs.
The syntactic analysis engine has better handling of cases where
several syntactic constructs appear nested on the same line. They
are now handled as if each construct started on a line of its own.
This means that CC Mode now indents some cases differently, and
although it's more consistent there might be cases where the old way
gave results that's more to one's liking. So if you find a
situation where you think that the indentation has become worse,
please report it to firstname.lastname@example.org.
- New syntactic symbol
symbol is used when a label is inserted between a statement and its
- Better handling of multiline macros.
- Syntactic indentation inside macros: The contents of
#define's are now analyzed and indented
syntactically just like other code. This can be disabled by the
new syntactic symbol
cpp-define-intro has been added
to control the initial indentation inside
- New lineup function
is now used by default to line up macro continuation lines. The
behavior of this function closely mimics the indentation one gets
if the macro is indented while the line continuation backslashes
are temporarily removed. If syntactic indentation in macros is
turned off, it works much line
which was used earlier, but handles empty lines within the macro
- Automatically inserted newlines continues the macro if used
within one. This applies to the newlines inserted by the
auto-newline mode, and to
- Better alignment of line continuation backslashes.
c-backslash-region tries to adapt to surrounding
backslashes. New variable
which put a limit on how far out backslashes can be moved.
- Automatic alignment of line continuation backslashes. This
is controlled by the new variable
c-auto-align-backslashes. It affects
c-context-open-line and newlines inserted in
- Line indentation works better inside macros. Regardless
whether syntactic indentation and syntactic indentation inside
macros are enabled or not, line indentation now ignores the line
continuation backslashes. This is most noticeable when syntactic
indentation is turned off and there are empty lines (save for the
backslash) in the macro.
- The behavior of
indent-for-comment) is now configurable through the
c-indent-comment-alist. The indentation
behavior is based on the preceding code on the line, e.g. to get two
comment-column in most other cases
(something which was hardcoded earlier).
- New function
c-context-open-line which is the
open-line equivalent of
- New lineup functions:
c-lineup-cascaded-calls lines up series of calls
separated by "->" or ".".
c-lineup-knr-region-comment gives (what most
people think is) better indentation of comments in the "K&R
region" between the function header and its body.
c-lineup-gcc-asm-reg provides better indentation
asm blocks. Contributed by Kevin Ryde.
c-lineup-argcont lines up continued function
arguments after the preceding comma. Contributed by Kevin Ryde.
- Better caching of the syntactic context.
CC Mode caches the positions of the opening parentheses (of any
kind) of the lists surrounding the point. Those positions are used
in many places as anchor points for various searches. The cache is
now improved so that it can be reused to a large extent when the
point is moved. The less it moves, the less needs to be
The effect is that CC Mode should be fast most of the time even
when opening parens are hung (i.e. aren't in column zero). It's
typically only the first time after the point is moved far down in a
complex file that it'll take noticeable time to find out the
- Statements are recognized in a more robust way. They are
handled even when they occur in an "invalid" context, e.g. in a
function argument. In practice that can happen when macros are
- Improved the way c-indent-exp chooses the block to indent.
It now indents the block for the closest sexp following the point
whose closing paren ends on a different line. This means that the
point doesn't have to be immediately before the block to indent.
Also, only the block and the closing line is indented; the current
line is left untouched.
- Added toggle for syntactic indentation. The function
c-toggle-syntactic-indentation can be used to toggle