vim - Three curly brackets together in php source code -

vim - Three curly brackets together in php source code -

i downloaded finish source code of php php.net (php 5.4.0 [tar.bz2]). using 3 curly brackets given below (the next code snippet extracted form ext/ctype/ctype.c.)

/* {{{ proto bool ctype_digit(mixed c) checks numeric character(s) */ static php_function(ctype_digit) { ctype(isdigit); } /* }}} */

does have thought why using these 3 curly brackets together?

they vim fold markers, create easy collapse , expand text inbetween triple curly braces in vim, in illustration shown alternating between:

... /* {{{ proto bool ctype_digit(mixed c) checks numeric character(s) */ static php_function(ctype_digit) { ctype(isdigit); } /* }}} */ ...

and just

... /* {{{ proto bool ctype_digit(mixed c) ...

if @ end of file find them, you'll find block this:

/* * local variables: * tab-width: 4 * c-basic-offset: 4 * end: * vim600: sw=4 ts=4 fdm=marker * vim<600: sw=4 ts=4 */

which more-obvious indicator these comments relate vim.

php vim folding curly-braces