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Fix cmap format 2 handling (#53320).

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The patch introduced for #52646 was not correct.

* src/sfnt/ttcmap.c (tt_cmap2_char_next): Adjust condition.
This commit is contained in:
Werner Lemberg 2018-03-13 11:09:44 +01:00
parent 098dd70cb1
commit 78cded2c5c
2 changed files with 15 additions and 8 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2018-03-13 Werner Lemberg <wl@gnu.org>
Fix cmap format 2 handling (#53320).
The patch introduced for #52646 was not correct.
* src/sfnt/ttcmap.c (tt_cmap2_char_next): Adjust condition.
2018-03-10 Nikolaus Waxweiler <madigens@gmail.com>
* CMakeLists.txt (BASE_SRCS): Update to changes from 2018-03-05.

15
src/sfnt/ttcmap.c
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@ -549,19 +549,18 @@
}
}
}
/* if unsuccessful, avoid `charcode' leaving */
/* the current 256-character block */
if ( count )
charcode--;
}
/* If `charcode' is <= 0xFF, retry with `charcode + 1'. If */
/* `charcode' is 0x100 after the loop, do nothing since we have */
/* just reached the first sub-header for two-byte character codes. */
/* */
/* For all other cases, we jump to the next sub-header and adjust */
/* `charcode' accordingly. */
/* If `charcode' is <= 0xFF, retry with `charcode + 1'. */
/* Otherwise jump to the next 256-character block and retry. */
Next_SubHeader:
if ( charcode <= 0xFF )
charcode++;
else if ( charcode == 0x100 )
;
else
charcode = FT_PAD_FLOOR( charcode, 0x100 ) + 0x100;
}