libunistring-1.2

[Xi Ruoyao]

New minor version.

[Xi Ruoyao]

New in 1.2:

• The data tables and algorithms have been updated to Unicode version 15.1.0.
• New functions u8_pcpy, u16_pcpy, u32_pcpy, similar to mempcpy.
• New functions uc_indic_conjunct_break_name, uc_indic_conjunct_break_byname, uc_indic_conjunct_break.
• New functions

uc_is_property_prepended_concatenation_mark, uc_is_property_id_compat_math_start, uc_is_property_id_compat_math_continue, uc_is_property_ids_unary_operator

and new constants

UC_PROPERTY_PREPENDED_CONCATENATION_MARK, UC_PROPERTY_ID_COMPAT_MATH_START, UC_PROPERTY_ID_COMPAT_MATH_CONTINUE, UC_PROPERTY_IDS_UNARY_OPERATOR.

• New constant _libunistring_unicode_version.
• The UTF-8 decoder functions, especially u8_mbtouc, are now more Unicode Standard compliant.
• The *printf functions no longer support the %n directive, for security reasons.
• Fixed a bug in the *printf functions: In the %U, %lU, %llU directives, a negative width given as an argument did not trigger left-justification.
• The functions u16_strstr and u32_strstr now operate in worst-case linear time.

[Bruce Dubbs]

Fixed at commit dcf7fa27e14

Update to qpdf-11.9.0.
Update to libunistring-1.2.
Update to libpng-1.6.43.