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Introduce separate push/pop callbacks

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This should make it possible to do the SAX (parser stream thing) for XBEL.
And will also be used for fixing the end-tag highlighting.
This commit is contained in:
Jonas Fonseca 2005-12-05 19:31:42 +01:00 committed by Jonas Fonseca
parent d7d5fcab4d
commit 9aebb66bce
5 changed files with 44 additions and 12 deletions
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23
src/document/dom/renderer.c
View File

@ -677,7 +677,7 @@ render_dom_attribute_source(struct dom_stack *stack, struct dom_node *node, void
return node;
}
static dom_stack_callback_T dom_source_renderer_callbacks[DOM_NODES] = {
static dom_stack_callback_T dom_source_renderer_push_callbacks[DOM_NODES] = {
/* */ NULL,
/* DOM_NODE_ELEMENT */ render_dom_element_source,
/* DOM_NODE_ATTRIBUTE */ render_dom_attribute_source,
@ -693,6 +693,22 @@ static dom_stack_callback_T dom_source_renderer_callbacks[DOM_NODES] = {
/* DOM_NODE_NOTATION */ render_dom_node_source,
};
static dom_stack_callback_T dom_source_renderer_pop_callbacks[DOM_NODES] = {
/* */ NULL,
/* DOM_NODE_ELEMENT */ NULL,
/* DOM_NODE_ATTRIBUTE */ NULL,
/* DOM_NODE_TEXT */ NULL,
/* DOM_NODE_CDATA_SECTION */ NULL,
/* DOM_NODE_ENTITY_REFERENCE */ NULL,
/* DOM_NODE_ENTITY */ NULL,
/* DOM_NODE_PROC_INSTRUCTION */ NULL,
/* DOM_NODE_COMMENT */ NULL,
/* DOM_NODE_DOCUMENT */ NULL,
/* DOM_NODE_DOCUMENT_TYPE */ NULL,
/* DOM_NODE_DOCUMENT_FRAGMENT */ NULL,
/* DOM_NODE_NOTATION */ NULL,
};
/* Shared multiplexor between renderers */
void
@ -703,7 +719,6 @@ render_dom_document(struct cache_entry *cached, struct document *document,
struct dom_node *root;
struct dom_renderer renderer;
struct conv_table *convert_table;
dom_stack_callback_T *callbacks = dom_source_renderer_callbacks;
struct sgml_parser *parser;
assert(document->options.plain);
@ -719,7 +734,9 @@ render_dom_document(struct cache_entry *cached, struct document *document,
document->bgcolor = document->options.default_bg;
parser = init_sgml_parser(SGML_PARSER_STREAM, &renderer, cached,
document, callbacks);
document,
dom_source_renderer_push_callbacks,
dom_source_renderer_pop_callbacks);
if (!parser) return;
root = parse_sgml(parser, buffer);

18
src/document/dom/stack.c
View File

@ -46,7 +46,8 @@ realloc_dom_stack_state_objects(struct dom_stack *stack)
void
init_dom_stack(struct dom_stack *stack, void *parser, void *renderer,
dom_stack_callback_T callbacks[DOM_NODES],
dom_stack_callback_T push_callbacks[DOM_NODES],
dom_stack_callback_T pop_callbacks[DOM_NODES],
size_t object_size)
{
assert(stack);
@ -57,8 +58,10 @@ init_dom_stack(struct dom_stack *stack, void *parser, void *renderer,
stack->renderer = renderer;
stack->object_size = object_size;
if (callbacks)
memcpy(stack->callbacks, callbacks, DOM_STACK_CALLBACKS_SIZE);
if (push_callbacks)
memcpy(stack->push_callbacks, push_callbacks, DOM_STACK_CALLBACKS_SIZE);
if (pop_callbacks)
memcpy(stack->pop_callbacks, pop_callbacks, DOM_STACK_CALLBACKS_SIZE);
}
void
@ -111,7 +114,7 @@ push_dom_node(struct dom_stack *stack, struct dom_node *node)
* in the callbacks */
stack->depth++;
callback = stack->callbacks[node->type];
callback = stack->push_callbacks[node->type];
if (callback) {
void *state_data = get_dom_stack_state_data(stack, state);
@ -132,11 +135,18 @@ static int
do_pop_dom_node(struct dom_stack *stack, struct dom_stack_state *parent)
{
struct dom_stack_state *state;
dom_stack_callback_T callback;
assert(stack);
if (!dom_stack_has_parents(stack)) return 0;
state = get_dom_stack_top(stack);
callback = stack->pop_callbacks[state->node->type];
if (callback) {
void *state_data = get_dom_stack_state_data(stack, state);
callback(stack, state->node, state_data);
}
stack->depth--;
assert(stack->depth >= 0);

6
src/document/dom/stack.h
View File

@ -45,7 +45,8 @@ struct dom_stack {
size_t object_size;
/* Renderer specific callbacks for the streaming parser mode. */
dom_stack_callback_T callbacks[DOM_NODES];
dom_stack_callback_T push_callbacks[DOM_NODES];
dom_stack_callback_T pop_callbacks[DOM_NODES];
/* Data specific to the parser and renderer. */
void *renderer;
@ -107,7 +108,8 @@ search_dom_stack(struct dom_stack *stack, enum dom_node_type type,
* state to be assigned to the state's @data member. Zero means no state data should
* be allocated. */
void init_dom_stack(struct dom_stack *stack, void *parser, void *renderer,
dom_stack_callback_T callbacks[DOM_NODES],
dom_stack_callback_T push_callbacks[DOM_NODES],
dom_stack_callback_T pop_callbacks[DOM_NODES],
size_t object_size);
void done_dom_stack(struct dom_stack *stack);

6
src/document/sgml/parser.c
View File

@ -311,7 +311,8 @@ parse_sgml_document(struct dom_stack *stack, struct scanner *scanner)
struct sgml_parser *
init_sgml_parser(enum sgml_parser_type type, void *renderer,
struct cache_entry *cached, struct document *document,
dom_stack_callback_T callbacks[DOM_NODES])
dom_stack_callback_T push_callbacks[DOM_NODES],
dom_stack_callback_T pop_callbacks[DOM_NODES])
{
size_t obj_size = sizeof(struct sgml_parser_state);
struct sgml_parser *parser;
@ -324,7 +325,8 @@ init_sgml_parser(enum sgml_parser_type type, void *renderer,
parser->cache_entry = cached;
parser->info = &sgml_html_info;
init_dom_stack(&parser->stack, parser, renderer, callbacks, obj_size);
init_dom_stack(&parser->stack, parser, renderer,
push_callbacks, pop_callbacks, obj_size);
return parser;
}

3
src/document/sgml/parser.h
View File

@ -46,7 +46,8 @@ struct sgml_parser_state {
struct sgml_parser *
init_sgml_parser(enum sgml_parser_type type, void *renderer,
struct cache_entry *cached, struct document *document,
dom_stack_callback_T callbacks[DOM_NODES]);
dom_stack_callback_T push_callbacks[DOM_NODES],
dom_stack_callback_T pop_callbacks[DOM_NODES]);
void done_sgml_parser(struct sgml_parser *parser);