static void
html_render_entity(struct render_context *ctx, const struct array entity)
{
uint32 c;
c = html_parse_entity(entity);
if ((uint32)-1 == c) {
html_output_print(ctx->output, array_from_string("&"));
html_output_print(ctx->output, array_init(entity.data, entity.size));
html_output_print(ctx->output, array_from_string(";"));
} else {
size_t len;
char buf[4];
len = utf8_encode(c, buf);
html_output_print(ctx->output, array_init(buf, len));
}
}
static void
html_output_print(struct html_output *output, const struct array *text)
{
struct html_context *ctx;
if (text->size <= 0)
return;
ctx = html_output_get_udata(output);
if (ctx->title) {
str_cat_len(ctx->title, text->data, text->size);
return;
}
#if GTK_CHECK_VERSION(2,0,0)
{
GtkTextBuffer *buffer;
GtkTextIter iter;
buffer = gtk_text_view_get_buffer(ctx->html_view->widget);
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert(buffer, &iter, text->data, text->size);
}
#else
{
struct array str;
gchar *to_free;
if (locale_is_utf8()) {
str = array_init(text->data, text->size);
to_free = NULL;
} else {
to_free = h_strndup(text->data, text->size);
str = array_from_string(lazy_utf8_to_ui_string(to_free));
}
gtk_text_insert(ctx->html_view->widget,
NULL, NULL, NULL, str.data, str.size);
HFREE_NULL(to_free);
}
#endif
}
static void
html_render_text(struct render_context *ctx, const struct array text)
{
unsigned c_len;
size_t i;
bool whitespace = FALSE;
struct array entity, current;
entity = zero_array;
current = zero_array;
for (i = 0; i < text.size; i += c_len) {
const unsigned char c = text.data[i];
bool is_whitespace;
is_whitespace = FALSE;
c_len = utf8_first_byte_length_hint(c);
if (!ctx->preformatted && is_ascii_space(c)) {
if (whitespace)
continue;
is_whitespace = TRUE;
whitespace = TRUE;
if (0x20 == c && i > 0 && i < text.size - c_len) {
const unsigned char next_c = text.data[i + c_len];
if (!is_ascii_space(next_c))
is_whitespace = FALSE;
}
} else {
whitespace = FALSE;
}
if ('&' == c || ';' == c || is_whitespace) {
if (current.size > 0) {
html_output_print(ctx->output, current);
current = zero_array;
}
}
if (is_whitespace) {
if (i > 0 || ctx->closing)
html_output_print(ctx->output, array_from_string(" "));
} else if ('&' == c) {
if (entity.data) {
html_render_entity(ctx, entity);
}
entity.data = deconstify_gchar(&text.data[i + c_len]);
entity.size = 0;
continue;
} else if (';' == c) {
if (entity.data) {
html_render_entity(ctx, entity);
entity = zero_array;
continue;
}
} else if (entity.data) {
entity.size += c_len;
} else {
if (!current.data)
current.data = &text.data[i];
current.size += c_len;
}
}
if (current.size > 0) {
html_output_print(ctx->output, current);
}
}
static G_GNUC_COLD void
load_faq(void)
{
static const gchar faq_file[] = "FAQ";
static file_path_t fp[6];
static int initialized;
GtkWidget *textview;
const gchar *lang;
guint i = 0;
FILE *f;
html_view_free(&faq_html_view);
textview = gui_dlg_faq_lookup("textview_faq");
lang = locale_get_language();
if (initialized != 0) {
i = initialized;
} else {
char *tmp;
char *path;
tmp = get_folder_path(PRIVLIB_PATH, NULL);
if (tmp != NULL) {
path = make_pathname(tmp, lang);
file_path_set(&fp[i++], ostrdup(path), faq_file);
HFREE_NULL(path);
path = make_pathname(tmp, "en");
file_path_set(&fp[i++], ostrdup(path), faq_file);
HFREE_NULL(path);
}
HFREE_NULL(tmp);
path = make_pathname(PRIVLIB_EXP, lang);
file_path_set(&fp[i++], ostrdup(path), faq_file);
HFREE_NULL(path);
file_path_set(&fp[i++], PRIVLIB_EXP G_DIR_SEPARATOR_S "en", faq_file);
#ifndef OFFICIAL_BUILD
path = make_pathname(PACKAGE_EXTRA_SOURCE_DIR, lang);
file_path_set(&fp[i++], ostrdup(path), faq_file);
HFREE_NULL(path);
file_path_set(&fp[i++],
PACKAGE_EXTRA_SOURCE_DIR G_DIR_SEPARATOR_S "en", faq_file);
#endif /* !OFFICIAL_BUILD */
initialized = i;
}
g_assert(i <= G_N_ELEMENTS(fp));
f = file_config_open_read_norename("FAQ", fp, i);
if (f) {
faq_html_view = html_view_load_file(textview, fileno(f));
fclose(f);
} else {
static const gchar msg[] =
N_(
"<html>"
"<head>"
"<title>Frequently Asked Questions</title>"
"</head>"
"<body>"
"<p>"
"The FAQ document could not be loaded. Please read the "
"<a href=\"http://gtk-gnutella.sourceforge.net/?page=faq\">"
"FAQ online</a> instead."
"</p>"
"</body>"
"</html>"
);
faq_html_view = html_view_load_memory(textview, array_from_string(msg));
}
}
