ajax_prepare_response in core/includes/ajax.inc

Converts the return value of a page callback into an Ajax commands array.

backdrop_prepare_form in core/includes/form.inc

Prepares a structured form array.

backdrop_render in core/includes/common.inc

Renders HTML given a structured array tree.

element_info_property in core/includes/common.inc

Retrieves a single property for the defined element type.

file_field_widget_form in core/modules/file/file.field.inc

Implements hook_field_widget_form().

filter_process_format in core/modules/filter/filter.module

Expands an element into a base element with text format selector attached.

form_builder in core/includes/form.inc

Builds and processes all elements in the structured form array.

form_process_weight in core/includes/form.inc

Expands a weight element into a select element.