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lib/Image/PNG/QRCode.pod  view on Meta::CPAN

The module isn't optimized for repeated uses, it builds up and tears
down everything for each image.

The QR encoding is not checked for correctness. The QR code library
comes from the "qrduino" project, but the contents have been worked on
so it's not clear whether it's still correct. Also there was a bug in
the original qrduino leading to reading uninitialized memory.

This encoder doesn't support the "shift-JIS" format. UTF-8 seems to
pass through it OK. It doesn't use a BOM for the UTF-8.

The QR codes have only been checked by using two Android smartphones.

=head1 COPYRIGHT AND LICENSE

The QR code creation part (the contents of F<qrencode.c> in the
distribution) is copyright 2010, Tom Zerucha,
L<https://github.com/tz1>. The rest of the module is copyright by Ben
Bullock 2015-2018.

ppport.h  view on Meta::CPAN

blk_u16|5.011000||Viu
block_end|5.004000|5.004000|
block_gimme|5.004000|5.004000|u
blockhook_register|5.013003|5.013003|x
block_start|5.004000|5.004000|
BmFLAGS|5.009005||Viu
BmPREVIOUS|5.003007||Viu
BmRARE|5.003007||Viu
BmUSEFUL|5.003007||Viu
BOL|5.003007||Viu
BOM_UTF8|5.025005|5.003007|p
BOM_UTF8_FIRST_BYTE|5.019004||Viu
BOM_UTF8_TAIL|5.019004||Viu
bool|5.003007||Viu
boolSV|5.004000|5.003007|p
boot_core_mro|5.009005||Viu
boot_core_PerlIO|5.007002||Viu
boot_core_UNIVERSAL|5.003007||Viu
BOUND|5.003007||Viu
BOUNDA|5.013009||Viu
BOUNDL|5.004000||Viu
BOUNDU|5.013009||Viu
BRANCH|5.003007||Viu

ppport.h  view on Meta::CPAN

#ifndef isUTF8_CHAR
#  define isUTF8_CHAR(s, e)              (                                            \
    (e) <= (s) || ! is_utf8_string(s, UTF8_SAFE_SKIP(s, e))                     \
    ? 0                                                                         \
    : UTF8SKIP(s))
#endif

#endif

#if 'A' == 65
#ifndef BOM_UTF8
#  define BOM_UTF8                       "\xEF\xBB\xBF"
#endif

#ifndef REPLACEMENT_CHARACTER_UTF8
#  define REPLACEMENT_CHARACTER_UTF8     "\xEF\xBF\xBD"
#endif

#elif '^' == 95
#ifndef BOM_UTF8
#  define BOM_UTF8                       "\xDD\x73\x66\x73"
#endif

#ifndef REPLACEMENT_CHARACTER_UTF8
#  define REPLACEMENT_CHARACTER_UTF8     "\xDD\x73\x73\x71"
#endif

#elif '^' == 176
#ifndef BOM_UTF8
#  define BOM_UTF8                       "\xDD\x72\x65\x72"
#endif

#ifndef REPLACEMENT_CHARACTER_UTF8
#  define REPLACEMENT_CHARACTER_UTF8     "\xDD\x72\x72\x70"
#endif

#else
#  error Unknown character set
#endif