10
c-backslash-column: 77
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(put 'and-let* 'scheme-indent-function 1)
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(put 'receive 'scheme-indent-function 2)
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(put 'with-exception-handler 'scheme-indent-function 1)
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(put 'guard 'scheme-indent-function 1)
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The value 77 for c-backslash-column is selected to maximize writable space,
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eliminate jagged end of lines and prevent overflow of lines on diffs posted
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to the uim-commit list.
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Avoid placing a character at column 80 even if your editor displays it
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without overflow in 80-column window. Many editor displays it as continuance
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mark or folding mark. i.e. Treat column 79 as end-of-line, especially for
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decorations for comments.
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Any argument should be wrapped into () or [] if no exceptional reason exist,
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to prevent unintended operator associations.
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#define SCM_CONS_SET_CAR(a, car) (SCM_CAR(a) = (car))
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And ultra-cowardively, passing an argument to another function or macro is
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should also be wrapped as follows.
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#define SCM_CONS(kar, kdr) (Scm_NewCons((kar), (kdr)))
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This is intended to endure unconditional safety against rare-cases such as
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#define FOO assert(), get_foo()
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#define MAKE_LIST2(x, y) make_list(x, y)
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MAKE_LIST2(FOO, SCM_FALSE);
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/* => make_list(assert(), get_foo(), SCM_FALSE) */
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Don't pass a destructive or side-effective expression to a SigScheme macro as
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an argument (e.g. CONTINUATIONP(continuation_stack_unwind(cont))), because
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there's an possibility that continuation_stack_unwind() is evaluated multiple
55
times after the macro expantion.
added
removed
doc/style.txt
