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Merge with master

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This commit is contained in:
Witold Filipczyk 2006-12-26 22:46:15 +01:00 committed by Witold Filipczyk
commit 314cf3f2b2
1 changed files with 39 additions and 17 deletions
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56
src/document/html/renderer.c
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@ -154,14 +154,16 @@ realloc_line(struct html_context *html_context, struct document *document,
{
struct screen_char *pos, *end;
struct line *line;
int orig_length;
if (!realloc_lines(document, y))
return -1;
line = &document->data[y];
if (length < line->length)
return 0;
orig_length = line->length;
if (length < orig_length)
return orig_length;
if (!ALIGN_LINE(&line->chars, line->length, length + 1))
return -1;
@ -181,7 +183,7 @@ realloc_line(struct html_context *html_context, struct document *document,
line->length = length + 1;
return 0;
return orig_length;
}
void
@ -244,7 +246,7 @@ clear_hchars(struct html_context *html_context, int x, int y, int width)
assert(part && part->document && width > 0);
if_assert_failed return;
if (realloc_line(html_context, part->document, Y(y), X(x) + width - 1))
if (realloc_line(html_context, part->document, Y(y), X(x) + width - 1) < 0)
return;
assert(part->document->data);
@ -277,7 +279,7 @@ get_frame_char(struct html_context *html_context, struct part *part,
assert(part && part->document && x >= 0 && y >= 0);
if_assert_failed return NULL;
if (realloc_line(html_context, part->document, Y(y), X(x)))
if (realloc_line(html_context, part->document, Y(y), X(x)) < 0)
return NULL;
assert(part->document->data);
@ -325,7 +327,7 @@ draw_frame_vchars(struct part *part, int x, int y, int height,
/* The template char is the first vertical char to be drawn. So
* copy it to the rest. */
for (height -= 1, y += 1; height; height--, y++) {
if (realloc_line(html_context, part->document, Y(y), X(x)))
if (realloc_line(html_context, part->document, Y(y), X(x)) < 0)
return;
copy_screen_chars(&POS(x, y), template, 1);
@ -386,14 +388,15 @@ static inline int
set_hline(struct html_context *html_context, unsigned char *chars, int charslen,
enum link_state link_state)
{
struct part *part = html_context->part;
struct screen_char *schar = get_format_screen_char(html_context,
link_state);
struct part *const part = html_context->part;
struct screen_char *const schar = get_format_screen_char(html_context,
link_state);
int x = part->cx;
int y = part->cy;
int x2 = x;
const int y = part->cy;
const int x2 = x;
int len = charslen;
int utf8 = html_context->options->utf8;
const int utf8 = html_context->options->utf8;
int orig_length;
assert(part);
if_assert_failed return len;
@ -416,8 +419,9 @@ set_hline(struct html_context *html_context, unsigned char *chars, int charslen,
* incomplete character in part->document->buf, then
* the first byte of input can result in a double-cell
* character, so we must reserve one extra element. */
if (realloc_line(html_context, part->document,
Y(y), X(x) + charslen))
orig_length = realloc_line(html_context, part->document,
Y(y), X(x) + charslen);
if (orig_length < 0) /* error */
return 0;
if (utf8) {
unsigned char *end = chars + charslen;
@ -436,10 +440,21 @@ set_hline(struct html_context *html_context, unsigned char *chars, int charslen,
part->document->buf[i] = '\0';
data = utf8_to_unicode(&buf_ptr, buf_ptr + i);
if (data != UCS_NO_CHAR) {
/* FIXME: If there was invalid
* UTF-8 in the buffer,
* @utf8_to_unicode may have left
* some bytes unused. Those
* bytes should be pulled back
* into @chars, rather than
* discarded. This is not
* trivial to implement because
* each byte may have arrived in
* a separate call. */
part->document->buf_length = 0;
goto good_char;
} else {
/* Still not full char */
LINE(y).length = orig_length;
return 0;
}
}
@ -511,6 +526,13 @@ good_char:
* before each @copy_screen_chars call above, but
* those are in an inner loop that should be fast. */
assert(X(x) <= LINE(y).length);
/* Some part of the code is apparently using LINE(y).length
* for line-wrapping decisions. It may currently be too
* large because it was allocated above based on @charslen
* which is the number of bytes, not the number of cells.
* Change the length to the correct size, but dont let it
* get smaller than it was on entry to this function. */
LINE(y).length = int_max(orig_length, X(x));
len = x - x2;
} else {
if (utf8) {
@ -564,7 +586,7 @@ set_hline(struct html_context *html_context, unsigned char *chars, int charslen,
if (part->document) {
if (realloc_line(html_context, part->document,
Y(y), X(x) + charslen - 1))
Y(y), X(x) + charslen - 1) < 0)
return;
for (; charslen > 0; charslen--, x++, chars++) {
@ -713,7 +735,7 @@ copy_chars(struct html_context *html_context, int x, int y, int width, struct sc
assert(width > 0 && part && part->document && part->document->data);
if_assert_failed return;
if (realloc_line(html_context, part->document, Y(y), X(x) + width - 1))
if (realloc_line(html_context, part->document, Y(y), X(x) + width - 1) < 0)
return;
copy_screen_chars(&POS(x, y), d, width);