fz_buffer *
fz_new_buffer_from_page(fz_context *ctx, fz_page *page, const fz_rect *sel, int crlf)
{
fz_stext_sheet *sheet;
fz_stext_page *text;
fz_buffer *buf;
sheet = fz_new_stext_sheet(ctx);
fz_try(ctx)
{
text = fz_new_stext_page_from_page(ctx, page, sheet);
buf = fz_new_buffer_from_stext_page(ctx, text, sel, crlf);
}
fz_always(ctx)
fz_drop_stext_sheet(ctx, sheet);
fz_catch(ctx)
fz_rethrow(ctx);
fz_drop_stext_page(ctx, text);
return buf;
}
/*
Search for occurrence of 'needle' in text page.
Return the number of hits and store hit quads in the passed in array.
NOTE: This is an experimental interface and subject to change without notice.
*/
int
fz_search_stext_page(fz_context *ctx, fz_stext_page *page, const char *needle, fz_quad *quads, int max_quads)
{
struct highlight hits;
fz_stext_block *block;
fz_stext_line *line;
fz_stext_char *ch;
fz_buffer *buffer;
const char *haystack, *begin, *end;
int c, inside;
if (strlen(needle) == 0)
return 0;
hits.len = 0;
hits.cap = max_quads;
hits.box = quads;
hits.hfuzz = 0.5f;
hits.vfuzz = 0.1f;
buffer = fz_new_buffer_from_stext_page(ctx, page);
fz_try(ctx)
{
haystack = fz_string_from_buffer(ctx, buffer);
begin = find_string(haystack, needle, &end);
if (!begin)
goto no_more_matches;
inside = 0;
for (block = page->first_block; block; block = block->next)
{
if (block->type != FZ_STEXT_BLOCK_TEXT)
continue;
for (line = block->u.t.first_line; line; line = line->next)
{
for (ch = line->first_char; ch; ch = ch->next)
{
try_new_match:
if (!inside)
{
if (haystack >= begin)
inside = 1;
}
if (inside)
{
if (haystack < end)
on_highlight_char(ctx, &hits, line, ch);
else
{
inside = 0;
begin = find_string(haystack, needle, &end);
if (!begin)
goto no_more_matches;
else
goto try_new_match;
}
}
haystack += fz_chartorune(&c, haystack);
}
assert(*haystack == '\n');
++haystack;
}
assert(*haystack == '\n');
++haystack;
}
no_more_matches:;
}
fz_always(ctx)
fz_drop_buffer(ctx, buffer);
fz_catch(ctx)
fz_rethrow(ctx);
return hits.len;
}
