ccmode: Literal Symbols
10.2.8 Comment String Label and Macro Symbols
---------------------------------------------
A few miscellaneous syntactic symbols that haven’t been previously
covered are illustrated by this C++ example:
1: void Bass::play( int volume )
2: const
3: {
4: /* this line starts a multiline
5: * comment. This line should get 'c' syntax */
6:
7: char* a_multiline_string = "This line starts a multiline \
8: string. This line should get 'string' syntax.";
9:
10: note:
11: {
12: #ifdef LOCK
13: Lock acquire();
14: #endif // LOCK
15: slap_pop();
16: cout << "I played "
17: << "a note\n";
18: }
19: }
The lines to note in this example include:
• Line 2 is assigned the ‘func-decl-cont’ syntax.
• Line 4 is assigned both ‘defun-block-intro’ _and_ ‘comment-intro’
syntax. A syntactic element with ‘comment-intro’ has no anchor
point. It is always accompanied by another syntactic element which
does have one.
• Line 5 is assigned ‘c’ syntax.
• Line 6 which, even though it contains nothing but whitespace, is
assigned ‘defun-block-intro’. Note that the appearance of the
comment on lines 4 and 5 do not cause line 6 to be assigned
‘statement’ syntax because comments are considered to be “syntactic
whitespace”, which are ignored when analyzing code.
• Line 8 is assigned ‘string’ syntax.
• Line 10 is assigned ‘label’ syntax.
• Line 11 is assigned ‘block-open’ as well as ‘statement’ syntax. A
‘block-open’ syntactic element doesn’t have an anchor position,
since it always appears with another syntactic element which does
have one.
• Lines 12 and 14 are assigned ‘cpp-macro’ syntax in addition to the
normal syntactic symbols (‘statement-block-intro’ and ‘statement’,
respectively). Normally ‘cpp-macro’ is configured to cancel out
the normal syntactic context to make all preprocessor directives
stick to the first column, but that’s easily changed if you want
preprocessor directives to be indented like the rest of the code.
Like ‘comment-intro’, a syntactic element with ‘cpp-macro’ doesn’t
contain an anchor position.
• Line 17 is assigned ‘stream-op’ syntax.
Info Catalog
ccmode: Paren List Symbols
ccmode: Syntactic Symbols
ccmode: Multiline Macro Symbols