kolibrios-gitea/contrib/network/netsurf/libhubbub/perf/hubbub.c
Yogev Ezra bb2bbc6b91 Move NetSurf to /contrib folder
git-svn-id: svn://kolibrios.org@4364 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-12-15 14:01:21 +00:00

534 lines
10 KiB
C

#define _GNU_SOURCE
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <sys/mman.h>
#include <hubbub/hubbub.h>
#include <hubbub/parser.h>
#include <hubbub/tree.h>
#define UNUSED(x) ((x) = (x))
typedef struct attr_t attr_t;
typedef struct node_t node_t;
typedef struct buf_t buf_t;
struct attr_t {
hubbub_ns ns;
char *name;
char *value;
};
struct node_t {
enum { DOCTYPE, COMMENT, ELEMENT, CHARACTER } type;
union {
struct {
char *name;
char *public_id;
char *system_id;
} doctype;
struct {
hubbub_ns ns;
char *name;
attr_t *attrs;
size_t n_attrs;
} element;
char *content; /**< For comments, characters **/
} data;
node_t *next;
node_t *prev;
node_t *child;
node_t *parent;
};
struct buf_t {
char *buf;
size_t len;
size_t pos;
};
#define NUM_NAMESPACES 7
const char const *ns_names[NUM_NAMESPACES] =
{ NULL, NULL /*html*/, "math", "svg", "xlink", "xml", "xmlns" };
node_t *Document;
static int create_comment(void *ctx, const hubbub_string *data, void **result);
static int create_doctype(void *ctx, const hubbub_doctype *doctype,
void **result);
static int create_element(void *ctx, const hubbub_tag *tag, void **result);
static int create_text(void *ctx, const hubbub_string *data, void **result);
static int ref_node(void *ctx, void *node);
static int unref_node(void *ctx, void *node);
static int append_child(void *ctx, void *parent, void *child, void **result);
static int insert_before(void *ctx, void *parent, void *child, void *ref_child,
void **result);
static int remove_child(void *ctx, void *parent, void *child, void **result);
static int clone_node(void *ctx, void *node, bool deep, void **result);
static int reparent_children(void *ctx, void *node, void *new_parent);
static int get_parent(void *ctx, void *node, bool element_only, void **result);
static int has_children(void *ctx, void *node, bool *result);
static int form_associate(void *ctx, void *form, void *node);
static int add_attributes(void *ctx, void *node,
const hubbub_attribute *attributes, uint32_t n_attributes);
static int set_quirks_mode(void *ctx, hubbub_quirks_mode mode);
static hubbub_tree_handler tree_handler = {
create_comment,
create_doctype,
create_element,
create_text,
ref_node,
unref_node,
append_child,
insert_before,
remove_child,
clone_node,
reparent_children,
get_parent,
has_children,
form_associate,
add_attributes,
set_quirks_mode,
NULL,
NULL
};
static void *myrealloc(void *ptr, size_t len, void *pw)
{
UNUSED(pw);
return realloc(ptr, len);
}
int main(int argc, char **argv)
{
hubbub_parser *parser;
hubbub_parser_optparams params;
struct stat info;
int fd;
uint8_t *file;
if (argc != 3) {
printf("Usage: %s <aliases_file> <filename>\n", argv[0]);
return 1;
}
/* Initialise library */
assert(hubbub_initialise(argv[1], myrealloc, NULL) == HUBBUB_OK);
assert(hubbub_parser_create("UTF-8", false, myrealloc, NULL, &parser) ==
HUBBUB_OK);
params.tree_handler = &tree_handler;
assert(hubbub_parser_setopt(parser, HUBBUB_PARSER_TREE_HANDLER,
&params) == HUBBUB_OK);
params.document_node = (void *)1;
assert(hubbub_parser_setopt(parser, HUBBUB_PARSER_DOCUMENT_NODE,
&params) == HUBBUB_OK);
stat(argv[2], &info);
fd = open(argv[2], 0);
file = mmap(NULL, info.st_size, PROT_READ, MAP_SHARED, fd, 0);
assert(hubbub_parser_parse_chunk(parser, file, info.st_size)
== HUBBUB_OK);
assert(hubbub_finalise(myrealloc, NULL) == HUBBUB_OK);
return 0;
}
/*** Tree construction functions ***/
int create_comment(void *ctx, const hubbub_string *data, void **result)
{
node_t *node = calloc(1, sizeof *node);
UNUSED(ctx);
node->type = COMMENT;
node->data.content = strndup((const char *) data->ptr, data->len);
*result = node;
return 0;
}
int create_doctype(void *ctx, const hubbub_doctype *doctype, void **result)
{
node_t *node = calloc(1, sizeof *node);
UNUSED(ctx);
node->type = DOCTYPE;
node->data.doctype.name = strndup(
(const char *) doctype->name.ptr,
doctype->name.len);
if (!doctype->public_missing) {
node->data.doctype.public_id = strndup(
(const char *) doctype->public_id.ptr,
doctype->public_id.len);
}
if (!doctype->system_missing) {
node->data.doctype.system_id = strndup(
(const char *) doctype->system_id.ptr,
doctype->system_id.len);
}
*result = node;
return 0;
}
int create_element(void *ctx, const hubbub_tag *tag, void **result)
{
node_t *node = calloc(1, sizeof *node);
UNUSED(ctx);
assert(tag->ns < NUM_NAMESPACES);
node->type = ELEMENT;
node->data.element.ns = tag->ns;
node->data.element.name = strndup(
(const char *) tag->name.ptr,
tag->name.len);
node->data.element.n_attrs = tag->n_attributes;
node->data.element.attrs = calloc(node->data.element.n_attrs,
sizeof *node->data.element.attrs);
for (size_t i = 0; i < tag->n_attributes; i++) {
attr_t *attr = &node->data.element.attrs[i];
assert(tag->attributes[i].ns < NUM_NAMESPACES);
attr->ns = tag->attributes[i].ns;
attr->name = strndup(
(const char *) tag->attributes[i].name.ptr,
tag->attributes[i].name.len);
attr->value = strndup(
(const char *) tag->attributes[i].value.ptr,
tag->attributes[i].value.len);
}
*result = node;
return 0;
}
int create_text(void *ctx, const hubbub_string *data, void **result)
{
node_t *node = calloc(1, sizeof *node);
UNUSED(ctx);
node->type = CHARACTER;
node->data.content = strndup((const char *) data->ptr, data->len);
*result = node;
return 0;
}
int ref_node(void *ctx, void *node)
{
UNUSED(ctx);
UNUSED(node);
return 0;
}
int unref_node(void *ctx, void *node)
{
UNUSED(ctx);
UNUSED(node);
return 0;
}
int append_child(void *ctx, void *parent, void *child, void **result)
{
node_t *tparent = parent;
node_t *tchild = child;
UNUSED(ctx);
node_t *insert = NULL;
tchild->parent = tparent;
tchild->next = tchild->prev = NULL;
*result = child;
if (parent == (void *)1) {
if (Document) {
insert = Document;
} else {
Document = tchild;
}
} else {
if (tparent->child == NULL) {
tparent->child = tchild;
} else {
insert = tparent->child;
}
}
if (insert) {
while (insert->next != NULL) {
insert = insert->next;
}
if (tchild->type == CHARACTER && insert->type == CHARACTER) {
insert->data.content = realloc(insert->data.content,
strlen(insert->data.content) +
strlen(tchild->data.content) + 1);
strcat(insert->data.content, tchild->data.content);
*result = insert;
} else {
insert->next = tchild;
tchild->prev = insert;
}
}
return 0;
}
/* insert 'child' before 'ref_child', under 'parent' */
int insert_before(void *ctx, void *parent, void *child, void *ref_child,
void **result)
{
node_t *tparent = parent;
node_t *tchild = child;
node_t *tref = ref_child;
UNUSED(ctx);
if (tchild->type == CHARACTER && tref->prev &&
tref->prev->type == CHARACTER) {
node_t *insert = tref->prev;
insert->data.content = realloc(insert->data.content,
strlen(insert->data.content) +
strlen(tchild->data.content) + 1);
strcat(insert->data.content, tchild->data.content);
*result = insert;
} else {
tchild->parent = parent;
tchild->prev = tref->prev;
tchild->next = tref;
tref->prev = tchild;
if (tchild->prev)
tchild->prev->next = tchild;
else
tparent->child = tchild;
*result = child;
}
return 0;
}
int remove_child(void *ctx, void *parent, void *child, void **result)
{
node_t *tparent = parent;
node_t *tchild = child;
UNUSED(ctx);
assert(tparent->child);
assert(tchild->parent == tparent);
if (tchild->parent->child == tchild) {
tchild->parent->child = tchild->next;
}
if (tchild->prev)
tchild->prev->next = tchild->next;
if (tchild->next)
tchild->next->prev = tchild->prev;
/* now reset all the child's pointers */
tchild->next = tchild->prev = tchild->parent = NULL;
*result = child;
return 0;
}
int clone_node(void *ctx, void *node, bool deep, void **result)
{
node_t *old_node = node;
node_t *new_node = calloc(1, sizeof *new_node);
UNUSED(ctx);
*new_node = *old_node;
*result = new_node;
new_node->child = new_node->parent =
new_node->next = new_node->prev =
NULL;
if (deep == false)
return 0;
if (old_node->next) {
void *n;
clone_node(ctx, old_node->next, true, &n);
new_node->next = n;
new_node->next->prev = new_node;
}
if (old_node->child) {
void *n;
clone_node(ctx, old_node->child, true, &n);
new_node->child = n;
new_node->child->parent = new_node;
}
return 0;
}
/* Take all of the child nodes of "node" and append them to "new_parent" */
int reparent_children(void *ctx, void *node, void *new_parent)
{
node_t *parent = new_parent;
node_t *old_parent = node;
node_t *insert;
node_t *kids;
UNUSED(ctx);
kids = old_parent->child;
if (!kids) return 0;
old_parent->child = NULL;
insert = parent->child;
if (!insert) {
parent->child = kids;
} else {
while (insert->next != NULL) {
insert = insert->next;
}
insert->next = kids;
kids->prev = insert;
}
while (kids) {
kids->parent = parent;
kids = kids->next;
}
return 0;
}
int get_parent(void *ctx, void *node, bool element_only, void **result)
{
UNUSED(ctx);
UNUSED(element_only);
*result = ((node_t *)node)->parent;
return 0;
}
int has_children(void *ctx, void *node, bool *result)
{
UNUSED(ctx);
*result = ((node_t *)node)->child ? true : false;
return 0;
}
int form_associate(void *ctx, void *form, void *node)
{
UNUSED(ctx);
UNUSED(form);
UNUSED(node);
return 0;
}
int add_attributes(void *ctx, void *vnode,
const hubbub_attribute *attributes, uint32_t n_attributes)
{
node_t *node = vnode;
size_t old_elems = node->data.element.n_attrs;
UNUSED(ctx);
node->data.element.n_attrs += n_attributes;
node->data.element.attrs = realloc(node->data.element.attrs,
node->data.element.n_attrs *
sizeof *node->data.element.attrs);
for (size_t i = 0; i < n_attributes; i++) {
attr_t *attr = &node->data.element.attrs[old_elems + i];
assert(attributes[i].ns < NUM_NAMESPACES);
attr->ns = attributes[i].ns;
attr->name = strndup(
(const char *) attributes[i].name.ptr,
attributes[i].name.len);
attr->value = strndup(
(const char *) attributes[i].value.ptr,
attributes[i].value.len);
}
return 0;
}
int set_quirks_mode(void *ctx, hubbub_quirks_mode mode)
{
UNUSED(ctx);
UNUSED(mode);
return 0;
}