Otherwise, there are unnecessary spaces at the end of lines in tables containing
combining characters.
Signed-off-by: Fabienne Ducroquet <fabiduc@gmail.com>
A combining character sequence where the base character is a space remained
recorded as a space although the initial space was replaced with an internal
code corresponding to the combined character. This caused an internal error when
ELinks tried to split the line at that place and did not find the space.
Signed-off-by: Fabienne Ducroquet <fabiduc@gmail.com>
This reverts commit d06cccffd6.
Some people wants URL in the title bar, but some wants the title.
I restored previous version (the title). If you want the URL, create
the patch with a configurable option.
The HTML parser decoded SGML entity references and numeric character
references in the following attributes, and then the renderer did the
same again:
link/@title
link/@hreflang
link/@type
link/@media
img/@alt
area/@alt
input[@type="image"]/@alt
input[@type="image"]/@name
input[@type="button"]/@value
The result was that e.g. title="&#65;" displayed as "A"
even though it was supposed to display as "A".
Fix by making the HTML parser tell the renderer that the entities have
already been decoded.
On 2008-09-05, it was reported to elinks-dev that ELinks hits an
internal error (bad alloc_header) when given a specific HTML file.
On 2008-09-09, out-of-range values of document->comb_x and
document->comb_y were noted as the cause of memory corruption.
Update those variables when splitting, aligning, or justifying a line.
Add many assertions to detect the bug if it occurs again.
Previously, the character at (document.comb_x, document.comb_y) was
accessed via the POS macro, which adds part.box.x and part.box.y to
the coordinates. However, if document.comb and document.y are set
at the end of one part and read at the beginning of another, then
the struct screen_char used by the original part should be updated,
even though the new part has a different box. Change comb_{x,y} to
be relative to the document, rather than to the box of a single part.
In document.forms, each struct form has form_num and form_end members
that reserve a subrange of [0, INT_MAX] to that form. Previously,
multiple forms in the list could have form_end == INT_MAX and thus
overlap each other. Prevent that by adjusting form_end of each form
newly added to the list.
Revert 438f039bda,
"check_html_form_hierarchy: Old code was buggy.", which made
check_html_form_hierarchy attach controls to the wrong forms.
Instead, construct the dummy form ("for those Flying Dutchmans") at
form_num == 0 always before adding any real forms to the list.
This prevents the assertion failure by ensuring that every possible
form_control.position is covered by some form, if there are any forms.
Add a function assert_forms_list_ok, which checks that the set of
forms actually covers the [0, INT_MAX] range without overlapping,
as intended. Call that from check_html_form_hierarchy to detect
any corruption.
I have tested this code (before any cherry-picking) with:
- bug 613 attachment 210: didn't crash
- bug 714 attachment 471: didn't crash
- bug 961 attachment 382: didn't crash
- bug 698 attachment 239: all the submit buttons showed the right URLs
- bug 698 attachment 470: the submit button showed the right URL
(cherry picked from commit 386a5d517b)
In document.forms, each struct form has form_num and form_end members
that reserve a subrange of [0, INT_MAX] to that form. Previously,
multiple forms in the list could have form_end == INT_MAX and thus
overlap each other. Prevent that by adjusting form_end of each form
newly added to the list.
Revert 438f039bda,
"check_html_form_hierarchy: Old code was buggy.", which made
check_html_form_hierarchy attach controls to the wrong forms.
Instead, construct the dummy form ("for those Flying Dutchmans") at
form_num == 0 always before adding any real forms to the list.
This prevents the assertion failure by ensuring that every possible
form_control.position is covered by some form, if there are any forms.
Add a function assert_forms_list_ok, which checks that the set of
forms actually covers the [0, INT_MAX] range without overlapping,
as intended. Call that from check_html_form_hierarchy to detect
any corruption.
I have tested this code (before any cherry-picking) with:
- bug 613 attachment 210: didn't crash
- bug 714 attachment 471: didn't crash
- bug 961 attachment 382: didn't crash
- bug 698 attachment 239: all the submit buttons showed the right URLs
- bug 698 attachment 470: the submit button showed the right URL
The previous code displayed the wrong attributes if the combining
characters were at the end of an HTML link. For example:
<a href="#">trickỹ</a> more text <a href="#">second link</a>
(The characters in the first A element are "tricky" and U+0303
COMBINING TILDE.)
Here, when the cursor was not at the first link, ELinks displayed
the y-with-tilde cell as if it were not part of the link.
This happened because ELinks had already changed schar->attr
before set_line saw the space character after the link and
flushed document->combi[].
Combining characters requires a UTF-8 locale.
It slows down rendering. There is still the unresolved issue with
combining characters at the end of a document.
This patch wasn't heavilly tested. Especially a "garbage" input may cause
unpredictable results.
Before, *_html_parser_state() operated with struct html_element *. Now, it is
transparent for the renderer (just void *), so that DOM won't have to provide
this struct but will be able to use something internal.
Backported from master.
Before, *_html_parser_state() operated with struct html_element *. Now, it is
transparent for the renderer (just void *), so that DOM won't have to provide
this struct but will be able to use something internal.
Currently, all DOM, HTML and plain renderers had their own routine for
conversion from text style to screen attribute. This moves text_style and
text_style_format from html/parser.h to renderer.h and introduces new generic
routine get_screen_chracter_template() that is used by all the specific
rendering engines.
This fixes ELinks crashing on this with terminal width e.g. 103:
<p align="justify">
xxxx xxxx xxxx xxxxx xxxxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx
xxxxx xxxx xxxxxxx xxx xxxxxxx xxx xxxx xxxx xxxx xx xxxx x xxx xxxx
xxxx xx xxxx xxxx xxxx xxx—xxx xxxx xx—xxx xxxx<em> </em>x
xxxx </p>
This test was removed for an unknown reason in commit
b1cc717789.
Discovered together with Miciah.
All the needed memory has been allocated before the loop so we can use
copy_screen_chars() directly. This avoids the assertion failure in
copy_chars() for width==0 and should be a bit faster too. According
to ISO/IEC 9899:1999 7.21.1p2, memcpy() doesn't copy anything if n==0
(but the pointers must be valid).
(original 'git cherry-pick' arguments: cherry-pick bug968-att394)
There were conflicts in src/document/css/ because 0.12.GIT switched
to LIST_OF(struct css_selector) and 0.13.GIT switched to struct
css_selector_set. Resolved by using LIST_OF(struct css_selector)
inside struct css_selector_set.
