ccss_grammar_t

typedef struct ccss_grammar_ ccss_grammar_t;

Represents a context for the creation of stylesheets of similar kind.

ccss_grammar_create_css ()

ccss_grammar_t *    ccss_grammar_create_css             (void);

Create a new grammar instance that interprets suppported CSS rules.

Grammar objects provide a factory to create stylesheets of the same class.

ccss_grammar_create_generic ()

ccss_grammar_t *    ccss_grammar_create_generic         (void);

Create a new grammar instance.

Grammar objects provide a factory to create stylesheets of the same class.

ccss_grammar_destroy ()

void                ccss_grammar_destroy                (ccss_grammar_t *self);

Decreases the reference count on self by one. If the result is zero, then self and all associated resources are freed. See ccss_grammar_reference().

ccss_grammar_reference ()

ccss_grammar_t *    ccss_grammar_reference              (ccss_grammar_t *self);

Increases the reference count on self by one. This prevents self from being destroyed until a matching call to ccss_grammar_destroy() is made.

The number of references to a ccss_grammar_t can be acquired using ccss_grammar_get_reference_count().

ccss_grammar_get_reference_count ()

unsigned int        ccss_grammar_get_reference_count    (ccss_grammar_t const *self);

ccss_grammar_add_properties ()

void                ccss_grammar_add_properties         (ccss_grammar_t *self,
                                                         ccss_property_class_t const *properties);

Register a set of custom CSS properties with the grammar.

ccss_grammar_lookup_property ()

ccss_property_class_t const * ccss_grammar_lookup_property
                                                        (ccss_grammar_t const *self,
                                                         char const *name);

Look up a property handler by name.

ccss_grammar_add_functions ()

void                ccss_grammar_add_functions          (ccss_grammar_t *self,
                                                         ccss_function_t const *functions);

Register a set of custom css function handlers with the grammar.

ccss_grammar_lookup_function ()

ccss_function_t const * ccss_grammar_lookup_function    (ccss_grammar_t const *self,
                                                         char const *name);

Look up a function handler by name.

ccss_grammar_create_stylesheet ()

ccss_stylesheet_t * ccss_grammar_create_stylesheet      (ccss_grammar_t *self);

Create an empty stylesheet associated with grammar self.

ccss_grammar_create_stylesheet_from_buffer ()

ccss_stylesheet_t * ccss_grammar_create_stylesheet_from_buffer
                                                        (ccss_grammar_t *self,
                                                         char const *buffer,
                                                         size_t size,
                                                         void *user_data);

Create a new stylesheet instance based on a CSS string.

ccss_grammar_create_stylesheet_from_file ()

ccss_stylesheet_t * ccss_grammar_create_stylesheet_from_file
                                                        (ccss_grammar_t *self,
                                                         char const *css_file,
                                                         void *user_data);

Create a new stylesheet instance based on a CSS file.

ccss_grammar_invoke_function ()

char *              ccss_grammar_invoke_function        (ccss_grammar_t const *self,
                                                         char const *function_name,
                                                         CRTerm const *values,
                                                         void *user_data);

Invoke a registerd function handler. This API is meant to be used by property implementations, like when parsing properties like `background-image: url(foo.png)'.

ccss_node_t

typedef struct ccss_node_ ccss_node_t;

Stack-allocatable struct representing a document node. Used for querying the ccss_stylesheet_t.

Memory management: Unless specified otherwise, objects of this kind are under the responsibility of the libccss consumer.

ccss_node_class_t

typedef struct {
	ccss_node_is_a_f		is_a;
	ccss_node_get_container_f	get_container;
	ccss_node_get_base_style_f	get_base_style;
	ccss_node_get_instance_f	get_instance;
	ccss_node_get_id_f		get_id;
	ccss_node_get_type_f		get_type;
	ccss_node_get_class_f		get_class;
	ccss_node_get_pseudo_classes_f	get_pseudo_classes;
	ccss_node_get_attribute_f	get_attribute;
	ccss_node_get_style_f		get_style;
	ccss_node_get_viewport_f	get_viewport;
	ccss_node_release_f		release;
} ccss_node_class_t;

Dispatch table a CCSS consumer has to fill so the selection engine can retrieve information about the document the document.

The implemented dispatch table needs to be passed to ccss_node_init.

ccss_node_is_a_f ()

bool                (*ccss_node_is_a_f)                 (ccss_node_t *self,
                                                         char const *type_name);

Hook function to query whether a ccss_node_t is of a certain type.

ccss_node_get_container_f ()

ccss_node_t *       (*ccss_node_get_container_f)        (ccss_node_t const *self);

Hook function to query the container of a ccss_node_t.

ccss_node_get_base_style_f ()

ccss_node_t *       (*ccss_node_get_base_style_f)       (ccss_node_t const *self);

Hook function to query the name of the style a ccss_node_t derives from.

ccss_node_get_instance_f ()

ptrdiff_t           (*ccss_node_get_instance_f)         (ccss_node_t const *self);

Hook function to query for a unique numerical representation of a ccss_node_t.

ccss_node_get_id_f ()

const char *        (*ccss_node_get_id_f)               (ccss_node_t const *self);

Hook function to query the ID of a ccss_node_t.

ccss_node_get_type_f ()

const char *        (*ccss_node_get_type_f)             (ccss_node_t const *self);

Hook function to query the type name of a ccss_node_t.

ccss_node_get_class_f ()

const char *        (*ccss_node_get_class_f)            (ccss_node_t const *self);

Hook function to query the class name of a ccss_node_t.

ccss_node_get_attribute_f ()

char *              (*ccss_node_get_attribute_f)        (ccss_node_t const *self,
                                                         char const *name);

Hook function to query a ccss_node_t's attributes.

ccss_node_get_style_f ()

const char *        (*ccss_node_get_style_f)            (ccss_node_t const *self,
                                                         unsigned int descriptor);

Hook function to query a ccss_node_t's inline CSS style.

See: ccss_stylesheet_unload().

ccss_node_get_viewport_f ()

bool                (*ccss_node_get_viewport_f)         (ccss_node_t const *self,
                                                         double *x,
                                                         double *y,
                                                         double *width,
                                                         double *height);

Hook function to determine the position of a node in the viewport.

ccss_node_release_f ()

void                (*ccss_node_release_f)              (ccss_node_t *self);

Hook function to deallocate a ccss_node_t instance.

ccss_node_init ()

void                ccss_node_init                      (ccss_node_t *self,
                                                         ccss_node_class_t *node_class);

Initializes node_class by filling unset functions with the default implementations and attaches it to self.