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| author | Matthias Melcher <fltk@matthiasm.com> | 2010-12-06 18:22:22 +0000 |
|---|---|---|
| committer | Matthias Melcher <fltk@matthiasm.com> | 2010-12-06 18:22:22 +0000 |
| commit | 1bac8a0ccae1f8993714e795d7da2e78245182d2 (patch) | |
| tree | 9bde4789126d3e19b4baa98c76b9268c7c896624 /FL/Fl_Text_Buffer.H | |
| parent | 06e5a163cd6fffa89e5e941fbbc8f9d5ee9fe72d (diff) | |
Fixed crashes when Fl_Text_* detects illegal UTF 8 sequences. Widgets will not do any further processing but just jump over the character. Screen representation depends largely on whatever the underlying OS does with those sequences, but I feel that this is out of the scope of this library. (STR 2348)
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7965 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'FL/Fl_Text_Buffer.H')
| -rw-r--r-- | FL/Fl_Text_Buffer.H | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/FL/Fl_Text_Buffer.H b/FL/Fl_Text_Buffer.H index 29ca2cd9d..3cc65da8d 100644 --- a/FL/Fl_Text_Buffer.H +++ b/FL/Fl_Text_Buffer.H @@ -34,7 +34,7 @@ #define FL_TEXT_BUFFER_H -#define ASSERT_UTF8 +#undef ASSERT_UTF8 #ifdef ASSERT_UTF8 # include <assert.h> @@ -47,22 +47,11 @@ /* - Suggested UTF-8 terminology for this file: - - ?? "length" is the number of characters in a string - ?? "size" is the number of bytes - ?? "index" is the position in a string in number of characters - ?? "offset" is the position in a string in bytes (and must be kept on a charater boundary) - (there seems to be no standard in Uncode documents, howevere "length" is commonly - referencing the number of bytes. Maybe "bytes" and "glyphs" would be the most - obvious way to describe sizes?) - "character size" is the size of a UTF-8 character in bytes - "character width" is the width of a Unicode character in pixels - - "column" was orginally defined as a character offset from the left margin. It was - identical to the byte offset. In UTF-8, we have neither a byte offset nor - truly fixed width fonts (*). Column could be a pixel value multiplied with + "character width" is the width of a Unicode character in pixels + "column" was orginally defined as a character offset from the left margin. + It was identical to the byte offset. In UTF-8, we have neither a byte offset + nor truly fixed width fonts (*). Column could be a pixel value multiplied with an average character width (which is a bearable approximation). * in Unicode, there are no fixed width fonts! Even if the ASCII characters may |