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haml--haml/ext/hamlit/hamlit.c
2015-11-27 02:09:25 +09:00

63 lines
1.6 KiB
C

#include <ruby.h>
VALUE mAttributeBuilder;
static ID id_temple, id_utils, id_escape_html;
static ID id_flatten, id_join;
static ID id_underscore;
static VALUE
attr_build_id(VALUE escape_attrs, VALUE ids)
{
VALUE truthy_ids, id, attr_value, mUtils;
int i, len;
ids = rb_funcall(ids, id_flatten, 0);
len = RARRAY_LEN(ids);
truthy_ids = rb_ary_new2(len);
for (i = 0; i < len; i++) {
id = rb_ary_entry(ids, i);
if (!NIL_P(id) && id != Qfalse) {
rb_ary_push(truthy_ids, id);
}
}
attr_value = rb_funcall(truthy_ids, id_join, 1, rb_const_get(mAttributeBuilder, id_underscore));
if (RTEST(escape_attrs)) {
mUtils = rb_const_get(rb_const_get(rb_cObject, id_temple), id_utils);
attr_value = rb_funcall(mUtils, id_escape_html, 1, attr_value);
}
return attr_value;
}
static VALUE
rb_attr_build_id(int argc, VALUE *argv, RB_UNUSED_VAR(VALUE self))
{
VALUE array;
rb_check_arity(argc, 1, UNLIMITED_ARGUMENTS);
rb_scan_args(argc - 1, argv + 1, "*", &array);
return attr_build_id(argv[0], array);
}
void
Init_hamlit(void)
{
VALUE mHamlit;
mHamlit = rb_define_module("Hamlit");
mAttributeBuilder = rb_define_module_under(mHamlit, "AttributeBuilder");
rb_define_singleton_method(mAttributeBuilder, "build_id", rb_attr_build_id, -1);
id_temple = rb_intern("Temple");
id_utils = rb_intern("Utils");
id_escape_html = rb_intern("escape_html");
id_flatten = rb_intern("flatten");
id_join = rb_intern("join");
id_underscore = rb_intern("UNDERSCORE");
rb_const_set(mAttributeBuilder, id_underscore, rb_obj_freeze(rb_str_new_cstr("_")));
}