�����JFIF��XX����������    $.' ",#(7),01444'9=82<.342  2!!22222222222222222222222222222222222222222222222222�����"����4���������������������������� ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������,�PG"Z_�4�˷����kjز�Z�,F+��_z�,�© �����zh6�٨�ic�fu������������������������������������#ډb���_�N��?�����������wQ���5-�~�I���8���������������������������������TK<5o�Iv-������������������k�_U_������������������������������~b�M��d��������Ӝ�U�Hh��?]��E�w��Q���k�{��_}qFW7HTՑ��Y��F�����?_�'ϔ��_�Ջt������������������������=||I �����6�έ"�����D���/[�k�9����Y�8������ds|\���Ҿp6�Ҵ���]��.����6���z<�v��@]�i%������������������������$j��~����g��J>��no����pM[me�i$[�����������s�o�ᘨ�˸ nɜG-�ĨU�ycP���3.DB�li�;���������������������hj���x����7Z^�N�h��������N3u{�:j�����x�힞��#M��&��jL P@��_���� P�������������������&��o8��������9������@Sz���6�t7#O�ߋ �����s}Yf�T������lmr����Z)'N��k�۞p�����w\�T���������������ȯ?�8`���O��i{wﭹW�[�r�� ��Q4F�׊������3m&L�=��h3�������z~��#����\�l :�F,j@�� ʱ�wQT����8�"kJO����6�֚l������������������}����R�>ډK���]��y����&����p�}b������;N�1�m�r$����|��7�>e�@���B�TM*-i�H��g�D�)� E�m�|�ؘbҗ�a���Ҿ����������������t4�����o���G��*oCN�rP���Q��@z,|?W[0���������:�n,j���WiE��W������$~/�hp\��?��{(�0���+�Y8rΟ�+����>S-S���������������VN;���}�s?.����� w��9��˟<���Mq4�Wv'������{)0�1mB����V����W[��������8�/<� �%���wT^�5���b��)iM� p�g�N�&ݝ������������VO~��q���u���9��� ����!��J27�����$����O-���! �:���%H��� ـ�������y�ΠM=t{!S�� �oK8�������t<����è��������:a��������[������ա�H���~��w��Qz`�p����o�^ ������Q��n����� �,uu�C��$ ^���,�������8�#��:�6��e�|~�����������!�3��3.�\0�����q��o�4`.|� ����y�Q�`~;�d�ׯ,��O�Zw�������`73�v�܋�<�����Ȏ�� ـ4k��5�K�a�u�=9Yd��$>x�A�&�� j0� ���vF��� Y���|�y��� ~�6�@c��1vOp��������Ig�����4��l�OD�����L����� R���c���j�_�uX�6��3?nk��Wy�f;^*B� ��@���~a�`��Eu�������+�����6�L��.ü>��}y���}_�O�6�͐�:�Yr���G�X��kG������l^w����������~㒶sy���Iu�!���� W ��X��N�7BV��O��!X�2����wvG�R�f�T#�����t�/?���%8�^�W�aT����G�cL�M���I��(J����1~�8�?aT ���]����AS�E��(��*E}� 2������#I/�׍qz��^t�̔���������b�Yz4x����t�){ OH�����+(E��A&�N�������XT��o��"�XC����'���)}�J�z�p� ����~5�}�^����+�6����w��c��Q�|�Lp�d�H��}�(�.|����k��c4^�����"�����Z?ȕ ��a<�������L�!0�39C� �Eu�����C�F�Ew�ç ;�n?�*o���B�8�bʝ���'#Rqf����M}7����]�������s2tcS{�\icTx;�\��7K���P������ʇ Z O-��~�������c>"��?��������P�����E��O�8��@�8��G��Q�g�a�Վ���󁶠��䧘��_%#r�>�����1�z�a���eb��qcP��ѵ��n���#L��� =��׀t� L�7�`�����V����A{�C:�g���e@�����w1 Xp�3�c3�ġ�������p��M"'-�@n4���fG���B3�DJ�8[Jo�ߐ���gK)ƛ��$���� �������8�3�����+���� �����6�ʻ���� ���S�kI�*KZlT _`�������?��K�����QK�d���������B`�s}�>���`������*�>��,*@J�d�oF*�����弝��O}�k��s��]��y�ߘ�������c1G�V���<=�7��7����6��q�PT��tXԀ�!9*4�4Tހ���3XΛex�46�������Y��D ����� ����BdemDa����\�_l,����G�/���֌7���Y�](�xTt^%�GE�����4�}bT����ڹ�����;��Y)���B�Q��u��>J/J ���⮶.�XԄ��j�ݳ������+E��d ���r�5�_D�����1 ���o�� �B�x�΢�#����<��W�����8���R6�@���g�M�.��� dr�D��>(otU��@�x=��~v���2� ӣ�d�oBd�����3�eO�6�㣷����������ݜ�6��6Y��Qz`����S��{���\P��~z m5{J/L��1������<�e�ͅPu���b�]�ϔ��������'�������f�b� Zpw��c`"��i���BD@:)ִ�:�]��h���v�E��w���T�l�������P����"Ju�}��وV ��J��G6��. J/�Qgl߭�e�����@�z�Zev2u����)]կ���������7x�������s�M�-<ɯ�c��r��v�����@��$�ޮ}lk���a����'����>x��O\�Z������Fu>������ck#��&:��`�$��ai�>2Δ����l���oF[h�������lE�ܺ�Π���k:)���`������� $[6�����9�����kOw�\|�����8}������ބ:��񶐕��������I�A1/���=�2[�,�!��.}gN#�u����b���� ~���������݊��}34q�����d�E��L��������c��$���"�[q�U�硬g^��%B ��z���r�p�������J�ru%v\h�����1Y�ne`������ǥ:g����pQM~�^��Xi� ��`S�:V2������9.�P���V������?B�k�� ��������AEvw%�_�9C�Q����wKekP�ؠ�\������;Io d�{ ߞo�c1eP�����\� `����E=���@K<�Y��������eڼ�J����w����{av�F�'�M�@��������������/J��+9p����|]���������Iw &`���8���&�M�hg���[�{�������Xj���%��Ӓ�������������������$��(�����ʹN�������<>�I���RY�����K2�NPlL�ɀ�)��&e��������B+ь����(������������������� � �JTx����_?EZ� }@���� 6�U���뙢ط�z��dWI��n` D����噥�[��uV��"�G&�����Ú����2�g�}&m���������������������?ċ���"����Om#�������������������������� ��{���������������������ON��"S�X���Ne��ysQ���@�������������Fn��Vg�����dX�~nj����������������������]J�<�K]:����FW���b�������62����������=��5f����JKw����bf�X������������������������55��~J �%^�������:�-�QIE��P��v�nZum� z � ~ə ���� ���ة����;�f��\v�������g�8�1��f2�������������������������4;�V���ǔ�)�������������������9���1\������������������������������c��v�/'Ƞ�w������������������$�4�R-��t����������������������������������� e�6�/�ġ �̕Ecy�J���u�B���<�W�ַ~�w[B1L۲�-JS΂�{���΃�������������������������������������������A��20�c#���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������@���� 0!1@AP"#2Q`$3V�%45a6�FRUq����� ������^7ׅ,$n��������+��F�`��2X'��0vM��p�L=�������5��8������u�p~���.�`r�����\����O��,ư�0oS ��_�M�����l���4�kv\JSd���x���SW�<��Ae�IX����������$I���w�:S���y���›R��9�Q[���,�5�;�@]�%���u�@ *ro�lbI �� ��+���%m:�͇ZV�����u�̉����θau<�fc�.����{�4Ա� �Q����*�Sm��8\ujqs]{kN���)qO�y�_*dJ�b�7���yQqI&9�ԌK!�M}�R�;�������S�T���1���i[U�ɵz�]��U)V�S6���3$K{��ߊ<�(� E]Զ[ǼENg�����'�\?#)Dkf��J���o��v���'�%ƞ�&K�u��!��b�35LX�Ϸ��63$K�a�;�9>,R��W��3�3� d�JeTYE.Mϧ��-�o�j3+y��y^�c�������VO�9NV\nd�1 ��!͕_)a�v;����թ�M�lWR1��)El��P;��yوÏ�u 3�k�5Pr6<�⒲l�!˞*��u־�n�!�l:����UNW ��%��Chx8vL'��X�@��*��)���̮��ˍ��� ����D-M�+J�U�kvK����+�x8��cY������?�Ԡ��~3mo��|�u@[XeY�C�\Kp�x8�oC�C�&����N�~3-H���� ��MX�s�u<`���~"WL��$8ξ��3���a�)|:@�m�\���^�`�@ҷ)�5p+��6���p�%i)P M���ngc�����#0Aruz���RL+xSS?���ʮ}()#�t��mˇ!��0}}y����<�e� �-ή�Ԩ��X������ MF���ԙ~l L.3���}�V뽺�v������멬��Nl�)�2����^�Iq��a��M��qG��T�����c3#������3U�Ǎ���}��לS�|qa��ڃ�+���-��2�f����/��bz��ڐ�� �ݼ[2�ç����k�X�2�* �Z�d���J�G����M*9W���s{��w���T��x��y,�in�O�v��]���n����P�$��JB@=4�OTI�n��e�22a\����q�d���%�$��(���:���: /*�K[PR�fr\nڙdN���F�n�$�4��[�� U�zƶ����� �mʋ���,�ao�u 3�z� �x��Kn����\[��VFmbE;�_U��&V�Gg�]L�۪&#n%�$ɯ��dG���D�TI=�%+AB�Ru#��b4�1�»x�cs�YzڙJG��f��Il���d�eF'T� iA��T���uC�$����Y��H?����[!G`}���ͪ� �纤Hv\������j�Ex�K���!���OiƸ�Yj�+u-<���'q����uN�*�r\��+�]���<�wOZ.fp�ێ��,-*)V?j-kÊ#�`�r��dV����(�ݽBk�����G�ƛk�QmUڗe��Z���f}|����8�8��a���i��3'J�����~G_�^���d�8w������ R�`(�~�.��u���l�s+g�bv���W���lGc}��u���afE~1�Ue������Z�0�8�=e�� f@/�jqEKQQ�J���oN��J���W5~M>$6�Lt�;$ʳ{���^��6�{����v6���ķܰg�V�cnn �~z�x�«�,2�u�?cE+Ș�H؎�%�Za�)���X>uW�Tz�Nyo����s���FQƤ��$��*�&�LLXL)�1�" L��eO��ɟ�9=���:t��Z���c��Ž���Y?�ӭV�wv�~,Y��r�ۗ�|�y��GaF�����C�����.�+� ���v1���fήJ�����]�S��T��B��n5sW}y�$��~z�'�c ��8 ��� ,! �p��VN�S��N�N�q��y8z˱�A��4��*��'������2n<�s���^ǧ˭P�Jޮɏ�U�G�L�J�*#��<�V��t7�8����TĜ>��i}K%,���)[��z�21z ?�N�i�n1?T�I�R#��m-�����������������1����lA�`��fT5+��ܐ�c�q՝��ʐ��,���3�f2U�եmab��#ŠdQ�y>\��)�SLY����w#��.���ʑ�f��� ,"+�w�~�N�'�c�O�3F�������N<���)j��&��,-� �љ���֊�_�zS���TǦ����w�>��?�������n��U仆�V���e�����0���$�C�d���rP �m�׈e�Xm�Vu� �L��.�bֹ��� �[Դaզ���*��\y�8�Է:�Ez\�0�Kq�C b��̘��cө���Q��=0Y��s�N��S.����3.���O�o:���#���v7�[#߫ ��5�܎�L���Er4���9n��COWlG�^��0k�%<���ZB���aB_���������'=��{i�v�l�$�uC���mƎҝ{�c㱼�y]���W�i ��ߧc��m�H� m�"�"�����;Y�ߝ�Z�Ǔ�����:S#��|}�y�,/k�Ld� TA�(�AI$+I3��;Y*���Z��}|��ӧO��d�v��..#:n��f>�>���ȶI�TX��� 8��y����"d�R�|�)0���=���n4��6ⲑ�+��r<�O�܂~zh�z����7ܓ�HH�Ga롏���nCo�>������a ���~]���R���̲c?�6(�q�;5%� |�uj�~z8R�=X��I�V=�|{v�Gj\gc��q����z�؋%M�ߍ����1y��#��@f^���^�>N������#x#۹��6�Y~�?�dfPO��{��P�4��V��u1E1J �*|���%����JN��`eWu�zk M6���q t[�� ��g�G���v��WIG��u_ft����5�j�"�Y�:T��ɐ���*�;� e5���4����q$C��2d�}���� _S�L#m�Yp��O�.�C�;��c����Hi#֩%+) �Ӎ��ƲV���SYź��g |���tj��3�8���r|���V��1#;.SQ�A[���S������#���`n�+���$��$�I �P\[�@�s��(�ED�z���P��])8�G#��0B��[ى��X�II�q<��9�~[Z멜�Z�⊔IWU&A>�P~�#��dp<�?����7���c��'~���5 ��+$���lx@�M�dm��n<=e�dyX��?{�|Aef ,|n3�<~z�ƃ�uۧ�����P��Y,�ӥQ�*g�#먙R�\���;T��i,��[9Qi歉����c>]9�� ��"�c��P�� �Md?٥��If�ت�u��k��/����F��9�c*9��Ǎ:�ØF���z�n*�@|I�ށ9����N3{'��[�'ͬ�Ҳ4��#}��!�V� Fu��,�,mTIk���v C�7v���B�6k�T9��1�*l� '~��ƞF��lU��'�M ����][ΩũJ_�{�i�I�n��$����L�� j��O�dx�����kza۪��#�E��Cl����x˘�o�����V���ɞ�ljr��)�/,�߬h�L��#��^��L�ф�,íMƁe�̩�NB�L�����iL����q�}��(��q��6IçJ$�W�E$��:������=#����(�K�B����zђ <��K(�N�۫K�w��^O{!����)��H���>x�������lx�?>Պ�+�>�W���,Ly!_�D���Ō�l���Q�!�[ �S����J��1��Ɛ�Y}��b,+�Lo�x�ɓ)����=�y�oh�@�꥟/��I��ѭ=��P�y9��� �ۍYӘ�e+�p�Jnϱ?V\SO%�(�t� ���=?MR�[Ș�����d�/ ��n�l��B�7j� ��!�;ӥ�/�[-���A�>��dN�sLj ��,ɪv��=1c�.SQ�O3�U���ƀ�ܽ�E����������̻��9G�ϷD�7(�}��Ävӌ\��y�_0[w ���<΍>����a_��[0+�L��F.�޺��f�>oN�T����q;���y\��bՃ��y�jH�<|q-eɏ�_?_9+P���Hp$�����[ux�K w�Mw��N�ی'$Y2�=��q���KB��P��~�������Yul:�[<����F1�2�O���5=d����]Y�sw:���Ϯ���E��j,_Q��X��z`H1,#II ��d�wr��P˂@�ZJV����y$�\y�{}��^~���[:N����ߌ�U�������O��d�����ؾe��${p>G��3c���Ė�lʌ�� ת��[��`ϱ�-W����dg�I��ig2��� ��}s ��ؤ(%#sS@���~���3�X�nRG�~\jc3�v��ӍL��M[JB�T��s3}��j�Nʖ��W����;7���ç?=X�F=-�=����q�ߚ���#���='�c��7���ڑW�I(O+=:uxq�������������e2�zi+�kuG�R��������0�&e�n���iT^J����~\jy���p'dtG��s����O��3����9* �b#Ɋ�� p������[Bws�T�>d4�ۧs���nv�n���U���_�~,�v����ƜJ1��s�� �QIz���)�(lv8M���U=�;����56��G���s#�K���MP�=��LvyGd��}�VwWBF�'�à �?MH�U�g2�� ����!�p�7Q��j��ڴ����=��j�u��� Jn�A s���uM������e��Ɔ�Ҕ�!)�'��8Ϣ�ٔ���ޝ(��Vp���צ֖d=�IC�J�Ǡ{q������kԭ�߸���i��@K����u�|�p=..�*+����x�����z[Aqġ#s2a�Ɗ���RR�)*HRsi�~�a &f��M��P����-K�L@��Z��Xy�'x�{}��Zm+���:�)�) IJ�-i�u���� ���ܒH��'��L(7�y�GӜq���� j��� 6ߌg1�g�o���,kر���tY�?W,���p���e���f�OQS��!K�۟cҒA�|ս�j�>��=⬒��˧L[�� �߿2JaB~R��u�:��Q�] �0H~���]�7��Ƽ�I���(�}��cq '�ήET���q�?f�ab���ӥvr� �)o��-Q��_'����ᴎo��K������;��V���o��%���~OK ����*��b�f:���-ťIR��`B�5!RB@���ï�� �u �̯e\�_U�_������� g�ES��3��������QT��a�����x����U<~�c?�*�#]�MW,[8O�a�x��]�1bC|踤�P��lw5V%�)�{t�<��d��5���0i�XSU��m:��Z�┵�i�"��1�^B�-��P�hJ��&)O��*�D��c�W��vM��)����}���P��ܗ-q����\mmζZ-l@�}��a��E�6��F�@��&Sg@���ݚ�M����� ȹ 4����#p�\H����dYDo�H���"��\��..R�B�H�z_�/5˘����6��KhJR��P�mƶi�m���3��,#c�co��q�a)*P�t����R�m�k�7x�D�E�\Y�閣_X�<���~�)���c[[�BP����6�Yq���S��0����%_����;��Àv�~�| VS؇ ��'O0��F0��\���U�-�d@�����7�SJ*z��3n��y��P����O����������m�~�P�3|Y��ʉr#�C�<�G~�.,! ���bqx���h~0=��!ǫ�jy����l��O,�[B��~��|9��ٱ����Xly�#�i�B��g%�S��������tˋ���e���ې��\[d�t)��.+u�|1 ������#�~Oj����hS�%��i.�~X���I�H�m��0n���c�1uE�q��cF�RF�o���7� �O�ꮧ� ���ۛ{��ʛi5�rw?׌#Qn�TW��~?y$��m\�\o����%W� ?=>S�N@�� �Ʈ���R����N�)�r"C�:��:����� �����#��qb��Y�. �6[��2K����2u�Ǧ�HYR��Q�MV��� �G�$��Q+.>�����nNH��q�^��� ����q��mM��V��D�+�-�#*�U�̒ ���p욳��u:�������IB���m����PV@O���r[b= �� ��1U�E��_Nm�yKbN�O���U�}�the�`�|6֮P>�\2�P�V���I�D�i�P�O;�9�r�mAHG�W�S]��J*�_�G��+kP�2����Ka�Z���H�'K�x�W�MZ%�O�YD�Rc+o��?�q��Ghm��d�S�oh�\�D�|:W������UA�Qc yT�q��������~^�H��/��#p�CZ���T�I�1�ӏT����4��"�ČZ�����}��`w�#�*,ʹ�� ��0�i��課�Om�*�da��^gJ݅{���l�e9uF#T�ֲ��̲�ٞC"�q���ߍ ոޑ�o#�XZTp����@ o�8��(jd��xw�]�,f���`~��|,s��^����f�1���t��|��m�򸄭/ctr��5s��7�9Q�4�H1꠲BB@�l9@���C�����+�wp�xu�£Yc�9��?`@#�o�mH�s2��)�=��2�.�l����jg�9$�Y�S�%*L������R�Y������7Z���,*=�䷘$�������arm�o�ϰ���UW.|�r�uf����IGw�t����Zwo��~5 ��YյhO+=8fF�)�W�7�L9lM�̘·Y���֘YLf�큹�pRF���99.A �"wz��=E\Z���'a� 2��Ǚ�#;�'}�G���*��l��^"q��+2FQ� hj��kŦ��${���ޮ-�T�٭cf�|�3#~�RJ����t��$b�(R��(����r���dx� >U b�&9,>���%E\� Ά�e�$��'�q't��*�א���ެ�b��-|d���SB�O�O��$�R+�H�)�܎�K��1m`;�J�2�Y~9��O�g8=vqD`K[�F)k�[���1m޼c��n���]s�k�z$@��)!I �x՝"v��9=�ZA=`Ɠi �:�E��)`�7��vI��}d�YI�_ �o�:ob���o ���3Q��&D&�2=�� �Ά��;>�h����y.*ⅥS������Ӭ�+q&����j|UƧ�����}���J0��WW< ۋS�)jQR�j���Ư��rN)�Gű�4Ѷ(�S)Ǣ�8��i��W52���No˓� ۍ%�5brOn�L�;�n��\G����=�^U�dI���8$�&���h��'���+�(������cȁ߫k�l��S^���cƗjԌE�ꭔ��gF���Ȓ��@���}O���*;e�v�WV���YJ\�]X'5��ղ�k�F��b 6R�o՜m��i N�i�����>J����?��lPm�U��}>_Z&�KK��q�r��I�D�Չ~�q�3fL�:S�e>���E���-G���{L�6p�e,8��������QI��h��a�Xa��U�A'���ʂ���s�+טIjP�-��y�8ۈZ?J$��W�P� ��R�s�]��|�l(�ԓ��sƊi��o(��S0���Y� 8�T97.�����WiL��c�~�dxc�E|�2!�X�K�Ƙਫ਼�$((�6�~|d9u+�qd�^3�89��Y�6L�.I�����?���iI�q���9�)O/뚅����O���X��X�V��ZF[�یgQ�L��K1���RҖr@v�#��X�l��F���Нy�S�8�7�kF!A��sM���^rkp�jP�DyS$N���q���nxҍ!U�f�!eh�i�2�m����`�Y�I�9r�6� �TF���C}/�y�^���Η���5d�'��9A-��J��>{�_l+�`��A���[�'��յ�ϛ#w:݅�%��X�}�&�PSt�Q�"�-��\縵�/����$Ɨh�Xb�*�y��BS����;W�ջ_mc�����vt?2}1�;qS�d�d~u:2k5�2�R�~�z+|HE!)�Ǟl��7`��0�<�,�2*���Hl-��x�^����'_TV�gZA�'j� ^�2Ϊ��N7t�����?w�� �x1��f��Iz�C-Ȗ��K�^q�;���-W�DvT�7��8�Z�������� hK�(P:��Q- �8�n�Z���܃e貾�<�1�YT<�,�����"�6{�/ �?�͟��|1�:�#g��W�>$����d��J��d�B���=��jf[��%rE^��il:��B���x���Sּ�1հ��,�=��*�7 fcG��#q� �eh?��2�7�����,�!7x��6�n�LC�4x��},Geǝ�tC.��vS �F�43��zz\��;QYC,6����~;RYS/6���|2���5���v��T��i����������mlv��������&� �nRh^ejR�LG�f���? �ۉҬܦƩ��|��Ȱ����>3����!v��i�ʯ�>�v��オ�X3e���_1z�Kȗ\<������!�8���V��]��?b�k41�Re��T�q��mz��TiOʦ�Z��Xq���L������q"+���2ۨ��8}�&N7XU7Ap�d�X��~�׿��&4e�o�F��� �H�����O���č�c�� 懴�6���͉��+)��v;j��ݷ�� �UV�� i��� j���Y9GdÒJ1��詞�����V?h��l�����l�cGs�ځ�������y�Ac������\V3�? �� ܙg�>qH�S,�E�W�[�㺨�uch�⍸�O�}���a��>�q�6�n6�����N6�q��������N� ���! 1AQaq�0@����"2BRb�#Pr���3C`��Scst���$4D���%Td���� ?�����N����a��3��m���C���w��������xA�m�q�m����m������$����4n淿t'��C"w��zU=D�\R+w�p+Y�T�&�պ@��ƃ��3ޯ?�Aﶂ��aŘ���@-�����Q�=���9D��ռ�ѻ@��M�V��P��܅�G5�f�Y<�u=,EC)�<�Fy'�"�&�չ�X~f��l�KԆV��?�� �W�N����=(� �;���{�r����ٌ�Y���h{�١������jW����P���Tc�����X�K�r��}���w�R��%��?���E��m�� �Y�q|����\lEE4����r���}�lsI�Y������f�$�=�d�yO����p�����yBj8jU�o�/�S��?�U��*������ˍ�0�������u�q�m [�?f����a�� )Q�>����6#������� ?����0UQ����,IX���(6ڵ[�DI�MNލ�c&���υ�j\��X�R|,4��� j������T�hA�e��^���d���b<����n�� �즇�=!���3�^�`j�h�ȓr��jẕ�c�,ٞX����-����a�ﶔ���#�$��]w�O��Ӫ�1y%��L�Y<�wg#�ǝ�̗`�x�xa�t�w��»1���o7o5��>�m뭛C���Uƃߜ}�C���y1Xνm�F8�jI���]����H���ۺиE@I�i;r�8ӭ�����V�F�Շ| ��&?�3|x�B�MuS�Ge�=Ӕ�#BE5G������Y!z��_e��q�р/W>|-�Ci߇�t�1ޯќd�R3�u��g�=0 5��[?�#͏��q�cf���H��{ ?u�=?�?ǯ���}Z��z���hmΔ�BFTW�����<�q��(v� ��!��z���iW]*�J�V�z��gX֧A�q�&��/w���u�gYӘa���; �i=����g:��?2�dž6�ى�k�4�>�Pxs����}������G�9���3 ���)gG�R<>r h�$��'nc�h�P��Bj��J�ҧH� -��N1���N��?��~��}-q!=��_2hc�M��l�vY%UE�@|�v����M2�.Y[|y�"Eï��K�ZF,�ɯ?,q�?v�M 80jx�"�;�9vk�����+ ֧�� �ȺU��?�%�vcV��mA�6��Qg^M�����A}�3�nl� QRN�l8�kkn�'�����(��M�7m9و�q���%ޟ���*h$Zk"��$�9��: �?U8�Sl��,,|ɒ��xH(ѷ����Gn�/Q�4�P��G�%��Ա8�N��!� �&�7�;���eKM7�4��9R/%����l�c>�x;������>��C�:�����t��h?aKX�bhe�ᜋ^�$�Iհ �hr7%F$�E��Fd���t��5���+�(M6�t����Ü�UU|zW�=a�Ts�Tg������dqP�Q����b'�m���1{|Y����X�N��b �P~��F^F:����k6�"�j!�� �I�r�`��1&�-$�Bevk:y���#y�w��I0��x��=D�4��tU���P�ZH��ڠ底taP��6����b>�xa�����Q�#� WeF��ŮNj�p�J* mQ�N�����*I�-*�ȩ�F�g�3 �5��V�ʊ�ɮ�a��5F���O@{���NX��?����H�]3��1�Ri_u��������ѕ�� ����0��� F��~��:60�p�͈�S��qX#a�5>���`�o&+�<2�D����: �������ڝ�$�nP���*)�N�|y�Ej�F�5ټ�e���ihy�Z �>���k�bH�a�v��h�-#���!�Po=@k̆IEN��@��}Ll?j�O������߭�ʞ���Q|A07x���wt!xf���I2?Z��<ץ�T���cU�j��]���陎Ltl �}5�ϓ��$�,��O�mˊ�;�@O��jE��j(�ا,��LX���LO���Ц�90�O �.����a��nA���7������j4 ��W��_ٓ���zW�jcB������y՗+EM�)d���N�g6�y1_x��p�$Lv�:��9�"z��p���ʙ$��^��JԼ*�ϭ����o���=x�Lj�6�J��u82�A�H�3$�ٕ@�=Vv�]�'�qEz�;I˼��)��=��ɯ���x �/�W(V���p�����$ �m�������u�����񶤑Oqˎ�T����r��㠚x�sr�GC��byp�G��1ߠ�w e�8�$⿄����/�M{*}��W�]˷.�CK\�ުx���/$�WP�w���r� |i���&�}�{�X� �>��$-��l���?-z���g����lΆ���(F���h�vS*���b���߲ڡn,|)mrH[���a�3�ר�[1��3o_�U�3�TC�$��(�=�)0�kgP���� ��u�^=��4 �WYCҸ:��vQ�ר�X�à��tk�m,�t*��^�,�}D*�� �"(�I��9R����>`�`��[~Q]�#af��i6l��8���6�:,s�s�N6�j"�A4���IuQ��6E,�GnH��zS�HO�uk�5$�I�4��ؤ�Q9�@��C����wp��BGv[]�u�Ov����0I4���\��y�����Q�Ѹ��~>Z��8�T��a��q�ޣ;z��a���/��S��I:�ܫ_�|������>=Z����8:�S��U�I�J��"IY���8%b8���H��:�QO�6�;7�I�S��J��ҌAά3��>c���E+&jf$eC+�z�;��V����� �r���ʺ������my�e���aQ�f&��6�ND���.:��NT�vm�<- u���ǝ\MvZY�N�NT��-A�>jr!S��n�O 1�3�Ns�%�3D@���`������ܟ 1�^c<���� �a�ɽ�̲�Xë#�w�|y�cW�=�9I*H8�p�^(4���՗�k��arOcW�tO�\�ƍR��8����'�K���I�Q�����?5�>[�}��yU�ײ -h��=��% q�ThG�2�)���"ו3]�!kB��*p�FDl�A���,�eEi�H�f�Ps�����5�H:�Փ~�H�0Dت�D�I����h�F3�������c��2���E��9�H��5�zԑ�ʚ�i�X�=:m�xg�hd(�v����׊�9iS��O��d@0ڽ���:�p�5�h-��t�&���X�q�ӕ,��ie�|���7A�2���O%P��E��htj��Y1��w�Ѓ!����  ���� ࢽ��My�7�\�a�@�ţ�J ��4�Ȼ�F�@o�̒?4�wx��)��]�P��~�����u�����5�����7X ��9��^ܩ�U;Iꭆ 5 �������eK2�7(�{|��Y׎ �V��\"���Z�1� Z�����}��(�Ǝ"�1S���_�vE30>���p;� ΝD��%x�W�?W?v����o�^V�i�d��r[��/&>�~`�9Wh��y�;���R���� ;;ɮT��?����r$�g1�K����A��C��c��K��l:�'��3 c�ﳯ*"t8�~l��)���m��+U,z��`(��>yJ�?����h>��]��v��ЍG*�{`��;y]��I�T� ;c��NU�fo¾h���/$���|NS���1�S�"�H��V���T���4��uhǜ�]�v;���5�͠x��'C\�SBpl���h}�N����� A�Bx���%��ޭ�l��/����T��w�ʽ]D�=����K���ž�r㻠l4�S�O?=�k �M:� ��c�C�a�#ha���)�ѐxc�s���gP�iG���{+���x���Q���I= �� z��ԫ+ �8"�k�ñ�j=|����c ��y��CF��/���*9ж�h{ �?4�o� ��k�m�Q�N�x��;�Y��4膚�a�w?�6�>�e]�����Q�r�:����g�,i"�����ԩA��*M�<�G��b�if��l^M��5�� �Ҩ�{����6J��ZJ�����P�*�����Y���ݛu�_4�9�I8�7���������,^ToR���m4�H��?�N�S�ѕw��/S��甍�@�9H�S�T��t�ƻ���ʒU��*{Xs�@����f������֒Li�K{H�w^���������Ϥm�tq���s� ���ք��f:��o~s��g�r��ט� �S�ѱC�e]�x���a��) ���(b-$(�j>�7q�B?ӕ�F��hV25r[7 Y� }L�R��}����*sg+��x�r�2�U=�*'WS��ZDW]�WǞ�<��叓���{�$�9Ou4��y�90-�1�'*D`�c�^o?(�9��u���ݐ��'PI&� f�Jݮ�������:wS����jfP1F:X �H�9dԯ����˝[�_54 �}*;@�ܨ�� ð�yn�T���?�ןd�#���4rG�ͨ��H�1�|-#���Mr�S3��G�3�����)�.᧏3v�z֑��r����$G"�`j �1t��x0<Ɔ�Wh6�y�6��,œ�Ga��gA����y��b��)���h�D��ß�_�m��ü �gG;��e�v��ݝ�nQ� ��C����-�*��o���y�a��M��I�>�<���]obD��"�:���G�A��-\%LT�8���c�)��+y76���o�Q�#*{�(F�⽕�y����=���rW�\p���۩�c���A���^e6��K������ʐ�cVf5$�'->���ՉN"���F�"�UQ@�f��Gb~��#�&�M=��8�ט�JNu9��D��[̤�s�o�~������� G��9T�tW^g5y$b��Y'��س�Ǵ�=��U-2 #�MC�t(�i� �lj�@Q 5�̣i�*�O����s�x�K�f��}\��M{E�V�{�υ��Ƈ�����);�H����I��fe�Lȣr�2��>��W��I�Ȃ6������i��k�� �5�YOxȺ����>��Y�f5'��|��H+��98pj�n�.O�y�������jY��~��i�w'������l�;�s�2��Y��:'lg�ꥴ)o#'Sa�a�K��Z� �m��}�`169�n���"���x��I ��*+� }F<��cГ���F�P�������ֹ*�PqX�x۩��,� ��N�� �4<-����%����:��7����W���u�`����� $�?�I��&����o��o��`v�>��P��"��l���4��5'�Z�gE���8���?��[�X�7(��.Q�-��*���ތL@̲����v��.5���[��=�t\+�CNܛ��,g�SQnH����}*F�G16���&:�t��4ُ"A��̣��$�b �|����#rs��a�����T�� ]�<�j��B�S�('$�ɻ� �wP;�/�n��?�ݜ��x�F��yUn�~mL*-�������Xf�wd^�a�}��f�,=t�׵i�.2/wpN�Ep8�OР���•��R�FJ� 55TZ��T �ɭ�<��]��/�0�r�@�f��V��V����Nz�G��^���7hZi����k��3�,kN�e|�vg�1{9]_i��X5y7� 8e]�U����'�-2,���e"����]ot�I��Y_��n�(JҼ��1�O ]bXc���Nu�No��pS���Q_���_�?i�~�x h5d'�(qw52] ��'ޤ�q��o1�R!���`ywy�A4u���h<קy���\[~�4�\ X�Wt/� 6�����n�F�a8��f���z �3$�t(���q��q�x��^�XWeN'p<-v�!�{�(>ӽDP7��ո0�y)�e$ٕv�Ih'Q�EA�m*�H��RI��=:��� ���4牢) �%_iN�ݧ�l]� �Nt���G��H�L��� ɱ�g<���1V�,�J~�ٹ�"K��Q�� 9�HS�9�?@��k����r�;we݁�]I�!{ �@�G�[�"��`���J:�n]�{�cA�E����V��ʆ���#��U9�6����j�#Y�m\��q�e4h�B�7��C�������d<�?J����1g:ٳ���=Y���D�p�ц� ׈ǔ��1�]26؜oS�'��9�V�FVu�P�h�9�xc�oq�X��p�o�5��Ա5$�9W�V(�[Ak�aY錎qf;�'�[�|���b�6�Ck��)��#a#a˙��8���=äh�4��2��C��4tm^ �n'c����]GQ$[Wҿ��i���vN�{Fu ��1�gx��1┷���N�m��{j-,��x�� Ūm�ЧS�[�s���Gna���䑴�� x�p 8<������97�Q���ϴ�v�aϚG��Rt�Һ׈�f^\r��WH�JU�7Z���y)�vg=����n��4�_)y��D'y�6�]�c�5̪��\� �PF�k����&�c;��cq�$~T�7j ���nç]�<�g ":�to�t}�159�<�/�8������m�b�K#g'I'.W������6��I/��>v��\�MN��g���m�A�yQL�4u�Lj�j9��#44�t��l^�}L����n��R��!��t��±]��r��h6ٍ>�yҏ�N��fU�� ���� Fm@�8}�/u��jb9������he:A�y�ծw��GpΧh�5����l}�3p468��)U��d��c����;Us/�֔�YX�1�O2��uq�s��`hwg�r~�{ R��mhN��؎*q 42�*th��>�#���E����#��Hv�O����q�}������6�e��\�,Wk�#���X��b>��p}�դ��3���T5��†��6��[��@��P�y*n��|'f�֧>�lư΂�̺����SU�'*�q�p�_S�����M�� '��c�6������m�� ySʨ;M��r���Ƌ�m�Kxo,���Gm�P��A�G�:��i��w�9�}M(�^�V��$ǒ�ѽ�9���|���� �a����J�SQ�a���r�B;����}���ٻ֢�2�%U���c�#�g���N�a�ݕ�'�v�[�OY'��3L�3�;,p�]@�S��{ls��X�'���c�jw��k'a�.��}�}&�� �dP�*�bK=ɍ!����;3n�gΊU�ߴmt�'*{,=SzfD� A��ko~�G�aoq�_mi}#�m�������P�Xhύ�����mxǍ�΂���巿zf��Q���c���|kc�����?���W��Y�$���_Lv����l߶��c���`?����l�j�ݲˏ!V��6����U�Ђ(A���4y)H���p�Z_�x��>���e���R��$�/�`^'3qˏ�-&Q�=?��CFVR �D�fV�9��{�8g�������n�h�(P"��6�[�D���< E�����~0<@�`�G�6����Hг�cc�� �c�K.5��D��d�B���`?�XQ��2��ٿyqo&+�1^� DW�0�ꊩ���G�#��Q�nL3��c���������/��x ��1�1�[y�x�პCW��C�c�UĨ80�m�e�4.{�m��u���I=��f�����0QRls9���f���������9���~f�����Ǩ��a�"@�8���ȁ�Q����#c�ic������G��$���G���r/$W�(��W���V�"��m�7�[m�A�m����bo��D� j����۳� l���^�k�h׽����� ��#� iXn�v��eT�k�a�^Y�4�BN���ĕ���0������� !01@Q"2AaPq3BR�������?�����@4�Q�����T3,���㺠�W�[=JK�Ϟ���2�r^7��vc�:�9 �E�ߴ�w�S#d���Ix��u��:��Hp��9E!�� V 2;73|F��9Y���*ʬ�F��D����u&���y؟��^EA��A��(ɩ���^��GV:ݜDy�`��Jr29ܾ�㝉��[���E;Fzx��YG��U�e�Y�C���� ����v-tx����I�sם�Ę�q��Eb�+P\ :>�i�C'�;�����k|z�رn�y]�#ǿb��Q��������w�����(�r|ӹs��[�D��2v-%��@;�8<a���[\o[ϧw��I!��*0�krs)�[�J9^��ʜ��p1)� "��/_>��o��<1����A�E�y^�C��`�x1'ܣn�p��s`l���fQ��):�l����b>�Me�jH^?�kl3(�z:���1ŠK&?Q�~�{�ٺ�h�y���/�[��V�|6��}�KbX����mn[-��7�5q�94�������dm���c^���h� X��5��<�eޘ>G���-�}�دB�ޟ� ��|�rt�M��V+�]�c?�-#ڛ��^ǂ}���Lkr���O��u�>�-D�ry� D?:ޞ�U��ǜ�7�V��?瓮�"�#���r��չģVR;�n���/_� ؉v�ݶe5d�b9��/O��009�G���5n�W����JpA�*�r9�>�1��.[t���s�F���nQ� V 77R�]�ɫ8����_0<՜�IF�u(v��4��F�k�3��E)��N:��yڮe��P�`�1}�$WS��J�SQ�N�j��ٺ��޵�#l���ј(�5=��5�lǏmoW�v-�1����v,W�mn��߀$x�<����v�j(����c]��@#��1������Ǔ���o'��u+����;G�#�޸��v-lη��/(`i⣍Pm^����ԯ̾9Z��F��������n��1��� ��]�[��)�'�������:�֪�W��FC����� �B9،!?���]��V��A�Վ�M��b�w��G F>_DȬ0¤�#�QR�[V��kz���m�w�"��9ZG�7'[��=�Q����j8R?�zf�\a�=��O�U����*oB�A�|G���2�54 �p��.w7� �� ���&������ξxGHp� B%��$g�����t�Џ򤵍z���HN�u�Я�-�'4��0���;_���3������� !01"@AQa2Pq#3BR�������?����ʩca��en��^��8���<�u#��m*08r��y�N"�<�Ѳ0��@\�p��� �����Kv�D��J8�Fҽ� �f�Y��-m�ybX�NP����}�!*8t(�OqѢ��Q�wW�K��ZD��Δ^e��!� ��B�K��p~�����e*l}z#9ң�k���q#�Ft�o��S�R����-�w�!�S���Ӥß|M�l޶V��!eˈ�8Y���c�ЮM2��tk���� ������J�fS����Ö*i/2�����n]�k�\���|4yX�8��U�P.���Ы[���l��@"�t�<������5�lF���vU�����W��W��;�b�cД^6[#7@vU�xgZv��F�6��Q,K�v��� �+Ъ��n��Ǣ��Ft���8��0��c�@�!�Zq s�v�t�;#](B��-�nῃ~���3g������5�J�%���O������n�kB�ĺ�.r��+���#�N$?�q�/�s�6��p��a����a��J/��M�8��6�ܰ"�*������ɗud"\w���aT(����[��F��U՛����RT�b���n�*��6���O��SJ�.�ij<�v�MT��R\c��5l�sZB>F��<7�;EA��{��E���Ö��1U/�#��d1�a�n.1ě����0�ʾR�h��|�R��Ao�3�m3 ��%�� ���28Q�� ��y��φ���H�To�7�lW>����#i`�q���c����a��� �m,B�-j����݋�'mR1Ήt�>��V��p���s�0IbI�C.���1R�ea�����]H�6�����������4B>��o��](��$B���m�����a�!=���?�B� K�Ǿ+�Ծ"�n���K��*��+��[T#�{�E�J�S����Q�����s�5�:�U�\wĐ�f�3����܆&�)�����I���Ԇw��E T�lrTf6Q|R�h:��[K�� �z��c֧�G�C��%\��_�a��84��HcO�bi��ؖV��7H �)*ģK~Xhչ0��4?�0��� �E<���}3���#���u�?�� ��|g�S�6ꊤ�|�I#Hڛ� �ա��w�X��9��7���Ŀ%�SL��y6č��|�F�a 8���b���$�sק�h���b9RAu7�˨p�Č�_\*w��묦��F ����4D~�f����|(�"m���NK��i�S�>�$d7SlA��/�²����SL��|6N�}���S�˯���g��]6��; �#�.��<���q'Q�1|KQ$�����񛩶"�$r�b:���N8�w@��8$�� �AjfG|~�9F ���Y��ʺ��Bwؒ������M:I岎�G��`s�YV5����6��A �b:�W���G�q%l�����F��H���7�������Fsv7���k�� 403WebShell
403Webshell
Server IP : 2.57.91.206  /  Your IP : 216.73.216.150
Web Server : LiteSpeed
System : Linux in-mum-web1874.main-hosting.eu 5.14.0-570.21.1.el9_6.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Jun 11 07:22:35 EDT 2025 x86_64
User : u862839997 ( 862839997)
PHP Version : 8.2.30
Disable Function : system, exec, shell_exec, passthru, mysql_list_dbs, ini_alter, dl, symlink, link, chgrp, leak, popen, apache_child_terminate, virtual, mb_send_mail
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : OFF  |  Python : OFF  |  Sudo : OFF  |  Pkexec : OFF
Directory :  /opt/golang/1.22.0/src/vendor/golang.org/x/text/unicode/bidi/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :


[ Back ]     

Current File : /opt/golang/1.22.0/src/vendor/golang.org/x/text/unicode/bidi/core.go
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package bidi

import (
	"fmt"
	"log"
)

// This implementation is a port based on the reference implementation found at:
// https://www.unicode.org/Public/PROGRAMS/BidiReferenceJava/
//
// described in Unicode Bidirectional Algorithm (UAX #9).
//
// Input:
// There are two levels of input to the algorithm, since clients may prefer to
// supply some information from out-of-band sources rather than relying on the
// default behavior.
//
// - Bidi class array
// - Bidi class array, with externally supplied base line direction
//
// Output:
// Output is separated into several stages:
//
//  - levels array over entire paragraph
//  - reordering array over entire paragraph
//  - levels array over line
//  - reordering array over line
//
// Note that for conformance to the Unicode Bidirectional Algorithm,
// implementations are only required to generate correct reordering and
// character directionality (odd or even levels) over a line. Generating
// identical level arrays over a line is not required. Bidi explicit format
// codes (LRE, RLE, LRO, RLO, PDF) and BN can be assigned arbitrary levels and
// positions as long as the rest of the input is properly reordered.
//
// As the algorithm is defined to operate on a single paragraph at a time, this
// implementation is written to handle single paragraphs. Thus rule P1 is
// presumed by this implementation-- the data provided to the implementation is
// assumed to be a single paragraph, and either contains no 'B' codes, or a
// single 'B' code at the end of the input. 'B' is allowed as input to
// illustrate how the algorithm assigns it a level.
//
// Also note that rules L3 and L4 depend on the rendering engine that uses the
// result of the bidi algorithm. This implementation assumes that the rendering
// engine expects combining marks in visual order (e.g. to the left of their
// base character in RTL runs) and that it adjusts the glyphs used to render
// mirrored characters that are in RTL runs so that they render appropriately.

// level is the embedding level of a character. Even embedding levels indicate
// left-to-right order and odd levels indicate right-to-left order. The special
// level of -1 is reserved for undefined order.
type level int8

const implicitLevel level = -1

// in returns if x is equal to any of the values in set.
func (c Class) in(set ...Class) bool {
	for _, s := range set {
		if c == s {
			return true
		}
	}
	return false
}

// A paragraph contains the state of a paragraph.
type paragraph struct {
	initialTypes []Class

	// Arrays of properties needed for paired bracket evaluation in N0
	pairTypes  []bracketType // paired Bracket types for paragraph
	pairValues []rune        // rune for opening bracket or pbOpen and pbClose; 0 for pbNone

	embeddingLevel level // default: = implicitLevel;

	// at the paragraph levels
	resultTypes  []Class
	resultLevels []level

	// Index of matching PDI for isolate initiator characters. For other
	// characters, the value of matchingPDI will be set to -1. For isolate
	// initiators with no matching PDI, matchingPDI will be set to the length of
	// the input string.
	matchingPDI []int

	// Index of matching isolate initiator for PDI characters. For other
	// characters, and for PDIs with no matching isolate initiator, the value of
	// matchingIsolateInitiator will be set to -1.
	matchingIsolateInitiator []int
}

// newParagraph initializes a paragraph. The user needs to supply a few arrays
// corresponding to the preprocessed text input. The types correspond to the
// Unicode BiDi classes for each rune. pairTypes indicates the bracket type for
// each rune. pairValues provides a unique bracket class identifier for each
// rune (suggested is the rune of the open bracket for opening and matching
// close brackets, after normalization). The embedding levels are optional, but
// may be supplied to encode embedding levels of styled text.
func newParagraph(types []Class, pairTypes []bracketType, pairValues []rune, levels level) (*paragraph, error) {
	var err error
	if err = validateTypes(types); err != nil {
		return nil, err
	}
	if err = validatePbTypes(pairTypes); err != nil {
		return nil, err
	}
	if err = validatePbValues(pairValues, pairTypes); err != nil {
		return nil, err
	}
	if err = validateParagraphEmbeddingLevel(levels); err != nil {
		return nil, err
	}

	p := &paragraph{
		initialTypes:   append([]Class(nil), types...),
		embeddingLevel: levels,

		pairTypes:  pairTypes,
		pairValues: pairValues,

		resultTypes: append([]Class(nil), types...),
	}
	p.run()
	return p, nil
}

func (p *paragraph) Len() int { return len(p.initialTypes) }

// The algorithm. Does not include line-based processing (Rules L1, L2).
// These are applied later in the line-based phase of the algorithm.
func (p *paragraph) run() {
	p.determineMatchingIsolates()

	// 1) determining the paragraph level
	// Rule P1 is the requirement for entering this algorithm.
	// Rules P2, P3.
	// If no externally supplied paragraph embedding level, use default.
	if p.embeddingLevel == implicitLevel {
		p.embeddingLevel = p.determineParagraphEmbeddingLevel(0, p.Len())
	}

	// Initialize result levels to paragraph embedding level.
	p.resultLevels = make([]level, p.Len())
	setLevels(p.resultLevels, p.embeddingLevel)

	// 2) Explicit levels and directions
	// Rules X1-X8.
	p.determineExplicitEmbeddingLevels()

	// Rule X9.
	// We do not remove the embeddings, the overrides, the PDFs, and the BNs
	// from the string explicitly. But they are not copied into isolating run
	// sequences when they are created, so they are removed for all
	// practical purposes.

	// Rule X10.
	// Run remainder of algorithm one isolating run sequence at a time
	for _, seq := range p.determineIsolatingRunSequences() {
		// 3) resolving weak types
		// Rules W1-W7.
		seq.resolveWeakTypes()

		// 4a) resolving paired brackets
		// Rule N0
		resolvePairedBrackets(seq)

		// 4b) resolving neutral types
		// Rules N1-N3.
		seq.resolveNeutralTypes()

		// 5) resolving implicit embedding levels
		// Rules I1, I2.
		seq.resolveImplicitLevels()

		// Apply the computed levels and types
		seq.applyLevelsAndTypes()
	}

	// Assign appropriate levels to 'hide' LREs, RLEs, LROs, RLOs, PDFs, and
	// BNs. This is for convenience, so the resulting level array will have
	// a value for every character.
	p.assignLevelsToCharactersRemovedByX9()
}

// determineMatchingIsolates determines the matching PDI for each isolate
// initiator and vice versa.
//
// Definition BD9.
//
// At the end of this function:
//
//   - The member variable matchingPDI is set to point to the index of the
//     matching PDI character for each isolate initiator character. If there is
//     no matching PDI, it is set to the length of the input text. For other
//     characters, it is set to -1.
//   - The member variable matchingIsolateInitiator is set to point to the
//     index of the matching isolate initiator character for each PDI character.
//     If there is no matching isolate initiator, or the character is not a PDI,
//     it is set to -1.
func (p *paragraph) determineMatchingIsolates() {
	p.matchingPDI = make([]int, p.Len())
	p.matchingIsolateInitiator = make([]int, p.Len())

	for i := range p.matchingIsolateInitiator {
		p.matchingIsolateInitiator[i] = -1
	}

	for i := range p.matchingPDI {
		p.matchingPDI[i] = -1

		if t := p.resultTypes[i]; t.in(LRI, RLI, FSI) {
			depthCounter := 1
			for j := i + 1; j < p.Len(); j++ {
				if u := p.resultTypes[j]; u.in(LRI, RLI, FSI) {
					depthCounter++
				} else if u == PDI {
					if depthCounter--; depthCounter == 0 {
						p.matchingPDI[i] = j
						p.matchingIsolateInitiator[j] = i
						break
					}
				}
			}
			if p.matchingPDI[i] == -1 {
				p.matchingPDI[i] = p.Len()
			}
		}
	}
}

// determineParagraphEmbeddingLevel reports the resolved paragraph direction of
// the substring limited by the given range [start, end).
//
// Determines the paragraph level based on rules P2, P3. This is also used
// in rule X5c to find if an FSI should resolve to LRI or RLI.
func (p *paragraph) determineParagraphEmbeddingLevel(start, end int) level {
	var strongType Class = unknownClass

	// Rule P2.
	for i := start; i < end; i++ {
		if t := p.resultTypes[i]; t.in(L, AL, R) {
			strongType = t
			break
		} else if t.in(FSI, LRI, RLI) {
			i = p.matchingPDI[i] // skip over to the matching PDI
			if i > end {
				log.Panic("assert (i <= end)")
			}
		}
	}
	// Rule P3.
	switch strongType {
	case unknownClass: // none found
		// default embedding level when no strong types found is 0.
		return 0
	case L:
		return 0
	default: // AL, R
		return 1
	}
}

const maxDepth = 125

// This stack will store the embedding levels and override and isolated
// statuses
type directionalStatusStack struct {
	stackCounter        int
	embeddingLevelStack [maxDepth + 1]level
	overrideStatusStack [maxDepth + 1]Class
	isolateStatusStack  [maxDepth + 1]bool
}

func (s *directionalStatusStack) empty()     { s.stackCounter = 0 }
func (s *directionalStatusStack) pop()       { s.stackCounter-- }
func (s *directionalStatusStack) depth() int { return s.stackCounter }

func (s *directionalStatusStack) push(level level, overrideStatus Class, isolateStatus bool) {
	s.embeddingLevelStack[s.stackCounter] = level
	s.overrideStatusStack[s.stackCounter] = overrideStatus
	s.isolateStatusStack[s.stackCounter] = isolateStatus
	s.stackCounter++
}

func (s *directionalStatusStack) lastEmbeddingLevel() level {
	return s.embeddingLevelStack[s.stackCounter-1]
}

func (s *directionalStatusStack) lastDirectionalOverrideStatus() Class {
	return s.overrideStatusStack[s.stackCounter-1]
}

func (s *directionalStatusStack) lastDirectionalIsolateStatus() bool {
	return s.isolateStatusStack[s.stackCounter-1]
}

// Determine explicit levels using rules X1 - X8
func (p *paragraph) determineExplicitEmbeddingLevels() {
	var stack directionalStatusStack
	var overflowIsolateCount, overflowEmbeddingCount, validIsolateCount int

	// Rule X1.
	stack.push(p.embeddingLevel, ON, false)

	for i, t := range p.resultTypes {
		// Rules X2, X3, X4, X5, X5a, X5b, X5c
		switch t {
		case RLE, LRE, RLO, LRO, RLI, LRI, FSI:
			isIsolate := t.in(RLI, LRI, FSI)
			isRTL := t.in(RLE, RLO, RLI)

			// override if this is an FSI that resolves to RLI
			if t == FSI {
				isRTL = (p.determineParagraphEmbeddingLevel(i+1, p.matchingPDI[i]) == 1)
			}
			if isIsolate {
				p.resultLevels[i] = stack.lastEmbeddingLevel()
				if stack.lastDirectionalOverrideStatus() != ON {
					p.resultTypes[i] = stack.lastDirectionalOverrideStatus()
				}
			}

			var newLevel level
			if isRTL {
				// least greater odd
				newLevel = (stack.lastEmbeddingLevel() + 1) | 1
			} else {
				// least greater even
				newLevel = (stack.lastEmbeddingLevel() + 2) &^ 1
			}

			if newLevel <= maxDepth && overflowIsolateCount == 0 && overflowEmbeddingCount == 0 {
				if isIsolate {
					validIsolateCount++
				}
				// Push new embedding level, override status, and isolated
				// status.
				// No check for valid stack counter, since the level check
				// suffices.
				switch t {
				case LRO:
					stack.push(newLevel, L, isIsolate)
				case RLO:
					stack.push(newLevel, R, isIsolate)
				default:
					stack.push(newLevel, ON, isIsolate)
				}
				// Not really part of the spec
				if !isIsolate {
					p.resultLevels[i] = newLevel
				}
			} else {
				// This is an invalid explicit formatting character,
				// so apply the "Otherwise" part of rules X2-X5b.
				if isIsolate {
					overflowIsolateCount++
				} else { // !isIsolate
					if overflowIsolateCount == 0 {
						overflowEmbeddingCount++
					}
				}
			}

		// Rule X6a
		case PDI:
			if overflowIsolateCount > 0 {
				overflowIsolateCount--
			} else if validIsolateCount == 0 {
				// do nothing
			} else {
				overflowEmbeddingCount = 0
				for !stack.lastDirectionalIsolateStatus() {
					stack.pop()
				}
				stack.pop()
				validIsolateCount--
			}
			p.resultLevels[i] = stack.lastEmbeddingLevel()

		// Rule X7
		case PDF:
			// Not really part of the spec
			p.resultLevels[i] = stack.lastEmbeddingLevel()

			if overflowIsolateCount > 0 {
				// do nothing
			} else if overflowEmbeddingCount > 0 {
				overflowEmbeddingCount--
			} else if !stack.lastDirectionalIsolateStatus() && stack.depth() >= 2 {
				stack.pop()
			}

		case B: // paragraph separator.
			// Rule X8.

			// These values are reset for clarity, in this implementation B
			// can only occur as the last code in the array.
			stack.empty()
			overflowIsolateCount = 0
			overflowEmbeddingCount = 0
			validIsolateCount = 0
			p.resultLevels[i] = p.embeddingLevel

		default:
			p.resultLevels[i] = stack.lastEmbeddingLevel()
			if stack.lastDirectionalOverrideStatus() != ON {
				p.resultTypes[i] = stack.lastDirectionalOverrideStatus()
			}
		}
	}
}

type isolatingRunSequence struct {
	p *paragraph

	indexes []int // indexes to the original string

	types          []Class // type of each character using the index
	resolvedLevels []level // resolved levels after application of rules
	level          level
	sos, eos       Class
}

func (i *isolatingRunSequence) Len() int { return len(i.indexes) }

func maxLevel(a, b level) level {
	if a > b {
		return a
	}
	return b
}

// Rule X10, second bullet: Determine the start-of-sequence (sos) and end-of-sequence (eos) types,
// either L or R, for each isolating run sequence.
func (p *paragraph) isolatingRunSequence(indexes []int) *isolatingRunSequence {
	length := len(indexes)
	types := make([]Class, length)
	for i, x := range indexes {
		types[i] = p.resultTypes[x]
	}

	// assign level, sos and eos
	prevChar := indexes[0] - 1
	for prevChar >= 0 && isRemovedByX9(p.initialTypes[prevChar]) {
		prevChar--
	}
	prevLevel := p.embeddingLevel
	if prevChar >= 0 {
		prevLevel = p.resultLevels[prevChar]
	}

	var succLevel level
	lastType := types[length-1]
	if lastType.in(LRI, RLI, FSI) {
		succLevel = p.embeddingLevel
	} else {
		// the first character after the end of run sequence
		limit := indexes[length-1] + 1
		for ; limit < p.Len() && isRemovedByX9(p.initialTypes[limit]); limit++ {

		}
		succLevel = p.embeddingLevel
		if limit < p.Len() {
			succLevel = p.resultLevels[limit]
		}
	}
	level := p.resultLevels[indexes[0]]
	return &isolatingRunSequence{
		p:       p,
		indexes: indexes,
		types:   types,
		level:   level,
		sos:     typeForLevel(maxLevel(prevLevel, level)),
		eos:     typeForLevel(maxLevel(succLevel, level)),
	}
}

// Resolving weak types Rules W1-W7.
//
// Note that some weak types (EN, AN) remain after this processing is
// complete.
func (s *isolatingRunSequence) resolveWeakTypes() {

	// on entry, only these types remain
	s.assertOnly(L, R, AL, EN, ES, ET, AN, CS, B, S, WS, ON, NSM, LRI, RLI, FSI, PDI)

	// Rule W1.
	// Changes all NSMs.
	precedingCharacterType := s.sos
	for i, t := range s.types {
		if t == NSM {
			s.types[i] = precedingCharacterType
		} else {
			// if t.in(LRI, RLI, FSI, PDI) {
			// 	precedingCharacterType = ON
			// }
			precedingCharacterType = t
		}
	}

	// Rule W2.
	// EN does not change at the start of the run, because sos != AL.
	for i, t := range s.types {
		if t == EN {
			for j := i - 1; j >= 0; j-- {
				if t := s.types[j]; t.in(L, R, AL) {
					if t == AL {
						s.types[i] = AN
					}
					break
				}
			}
		}
	}

	// Rule W3.
	for i, t := range s.types {
		if t == AL {
			s.types[i] = R
		}
	}

	// Rule W4.
	// Since there must be values on both sides for this rule to have an
	// effect, the scan skips the first and last value.
	//
	// Although the scan proceeds left to right, and changes the type
	// values in a way that would appear to affect the computations
	// later in the scan, there is actually no problem. A change in the
	// current value can only affect the value to its immediate right,
	// and only affect it if it is ES or CS. But the current value can
	// only change if the value to its right is not ES or CS. Thus
	// either the current value will not change, or its change will have
	// no effect on the remainder of the analysis.

	for i := 1; i < s.Len()-1; i++ {
		t := s.types[i]
		if t == ES || t == CS {
			prevSepType := s.types[i-1]
			succSepType := s.types[i+1]
			if prevSepType == EN && succSepType == EN {
				s.types[i] = EN
			} else if s.types[i] == CS && prevSepType == AN && succSepType == AN {
				s.types[i] = AN
			}
		}
	}

	// Rule W5.
	for i, t := range s.types {
		if t == ET {
			// locate end of sequence
			runStart := i
			runEnd := s.findRunLimit(runStart, ET)

			// check values at ends of sequence
			t := s.sos
			if runStart > 0 {
				t = s.types[runStart-1]
			}
			if t != EN {
				t = s.eos
				if runEnd < len(s.types) {
					t = s.types[runEnd]
				}
			}
			if t == EN {
				setTypes(s.types[runStart:runEnd], EN)
			}
			// continue at end of sequence
			i = runEnd
		}
	}

	// Rule W6.
	for i, t := range s.types {
		if t.in(ES, ET, CS) {
			s.types[i] = ON
		}
	}

	// Rule W7.
	for i, t := range s.types {
		if t == EN {
			// set default if we reach start of run
			prevStrongType := s.sos
			for j := i - 1; j >= 0; j-- {
				t = s.types[j]
				if t == L || t == R { // AL's have been changed to R
					prevStrongType = t
					break
				}
			}
			if prevStrongType == L {
				s.types[i] = L
			}
		}
	}
}

// 6) resolving neutral types Rules N1-N2.
func (s *isolatingRunSequence) resolveNeutralTypes() {

	// on entry, only these types can be in resultTypes
	s.assertOnly(L, R, EN, AN, B, S, WS, ON, RLI, LRI, FSI, PDI)

	for i, t := range s.types {
		switch t {
		case WS, ON, B, S, RLI, LRI, FSI, PDI:
			// find bounds of run of neutrals
			runStart := i
			runEnd := s.findRunLimit(runStart, B, S, WS, ON, RLI, LRI, FSI, PDI)

			// determine effective types at ends of run
			var leadType, trailType Class

			// Note that the character found can only be L, R, AN, or
			// EN.
			if runStart == 0 {
				leadType = s.sos
			} else {
				leadType = s.types[runStart-1]
				if leadType.in(AN, EN) {
					leadType = R
				}
			}
			if runEnd == len(s.types) {
				trailType = s.eos
			} else {
				trailType = s.types[runEnd]
				if trailType.in(AN, EN) {
					trailType = R
				}
			}

			var resolvedType Class
			if leadType == trailType {
				// Rule N1.
				resolvedType = leadType
			} else {
				// Rule N2.
				// Notice the embedding level of the run is used, not
				// the paragraph embedding level.
				resolvedType = typeForLevel(s.level)
			}

			setTypes(s.types[runStart:runEnd], resolvedType)

			// skip over run of (former) neutrals
			i = runEnd
		}
	}
}

func setLevels(levels []level, newLevel level) {
	for i := range levels {
		levels[i] = newLevel
	}
}

func setTypes(types []Class, newType Class) {
	for i := range types {
		types[i] = newType
	}
}

// 7) resolving implicit embedding levels Rules I1, I2.
func (s *isolatingRunSequence) resolveImplicitLevels() {

	// on entry, only these types can be in resultTypes
	s.assertOnly(L, R, EN, AN)

	s.resolvedLevels = make([]level, len(s.types))
	setLevels(s.resolvedLevels, s.level)

	if (s.level & 1) == 0 { // even level
		for i, t := range s.types {
			// Rule I1.
			if t == L {
				// no change
			} else if t == R {
				s.resolvedLevels[i] += 1
			} else { // t == AN || t == EN
				s.resolvedLevels[i] += 2
			}
		}
	} else { // odd level
		for i, t := range s.types {
			// Rule I2.
			if t == R {
				// no change
			} else { // t == L || t == AN || t == EN
				s.resolvedLevels[i] += 1
			}
		}
	}
}

// Applies the levels and types resolved in rules W1-I2 to the
// resultLevels array.
func (s *isolatingRunSequence) applyLevelsAndTypes() {
	for i, x := range s.indexes {
		s.p.resultTypes[x] = s.types[i]
		s.p.resultLevels[x] = s.resolvedLevels[i]
	}
}

// Return the limit of the run consisting only of the types in validSet
// starting at index. This checks the value at index, and will return
// index if that value is not in validSet.
func (s *isolatingRunSequence) findRunLimit(index int, validSet ...Class) int {
loop:
	for ; index < len(s.types); index++ {
		t := s.types[index]
		for _, valid := range validSet {
			if t == valid {
				continue loop
			}
		}
		return index // didn't find a match in validSet
	}
	return len(s.types)
}

// Algorithm validation. Assert that all values in types are in the
// provided set.
func (s *isolatingRunSequence) assertOnly(codes ...Class) {
loop:
	for i, t := range s.types {
		for _, c := range codes {
			if t == c {
				continue loop
			}
		}
		log.Panicf("invalid bidi code %v present in assertOnly at position %d", t, s.indexes[i])
	}
}

// determineLevelRuns returns an array of level runs. Each level run is
// described as an array of indexes into the input string.
//
// Determines the level runs. Rule X9 will be applied in determining the
// runs, in the way that makes sure the characters that are supposed to be
// removed are not included in the runs.
func (p *paragraph) determineLevelRuns() [][]int {
	run := []int{}
	allRuns := [][]int{}
	currentLevel := implicitLevel

	for i := range p.initialTypes {
		if !isRemovedByX9(p.initialTypes[i]) {
			if p.resultLevels[i] != currentLevel {
				// we just encountered a new run; wrap up last run
				if currentLevel >= 0 { // only wrap it up if there was a run
					allRuns = append(allRuns, run)
					run = nil
				}
				// Start new run
				currentLevel = p.resultLevels[i]
			}
			run = append(run, i)
		}
	}
	// Wrap up the final run, if any
	if len(run) > 0 {
		allRuns = append(allRuns, run)
	}
	return allRuns
}

// Definition BD13. Determine isolating run sequences.
func (p *paragraph) determineIsolatingRunSequences() []*isolatingRunSequence {
	levelRuns := p.determineLevelRuns()

	// Compute the run that each character belongs to
	runForCharacter := make([]int, p.Len())
	for i, run := range levelRuns {
		for _, index := range run {
			runForCharacter[index] = i
		}
	}

	sequences := []*isolatingRunSequence{}

	var currentRunSequence []int

	for _, run := range levelRuns {
		first := run[0]
		if p.initialTypes[first] != PDI || p.matchingIsolateInitiator[first] == -1 {
			currentRunSequence = nil
			// int run = i;
			for {
				// Copy this level run into currentRunSequence
				currentRunSequence = append(currentRunSequence, run...)

				last := currentRunSequence[len(currentRunSequence)-1]
				lastT := p.initialTypes[last]
				if lastT.in(LRI, RLI, FSI) && p.matchingPDI[last] != p.Len() {
					run = levelRuns[runForCharacter[p.matchingPDI[last]]]
				} else {
					break
				}
			}
			sequences = append(sequences, p.isolatingRunSequence(currentRunSequence))
		}
	}
	return sequences
}

// Assign level information to characters removed by rule X9. This is for
// ease of relating the level information to the original input data. Note
// that the levels assigned to these codes are arbitrary, they're chosen so
// as to avoid breaking level runs.
func (p *paragraph) assignLevelsToCharactersRemovedByX9() {
	for i, t := range p.initialTypes {
		if t.in(LRE, RLE, LRO, RLO, PDF, BN) {
			p.resultTypes[i] = t
			p.resultLevels[i] = -1
		}
	}
	// now propagate forward the levels information (could have
	// propagated backward, the main thing is not to introduce a level
	// break where one doesn't already exist).

	if p.resultLevels[0] == -1 {
		p.resultLevels[0] = p.embeddingLevel
	}
	for i := 1; i < len(p.initialTypes); i++ {
		if p.resultLevels[i] == -1 {
			p.resultLevels[i] = p.resultLevels[i-1]
		}
	}
	// Embedding information is for informational purposes only so need not be
	// adjusted.
}

//
// Output
//

// getLevels computes levels array breaking lines at offsets in linebreaks.
// Rule L1.
//
// The linebreaks array must include at least one value. The values must be
// in strictly increasing order (no duplicates) between 1 and the length of
// the text, inclusive. The last value must be the length of the text.
func (p *paragraph) getLevels(linebreaks []int) []level {
	// Note that since the previous processing has removed all
	// P, S, and WS values from resultTypes, the values referred to
	// in these rules are the initial types, before any processing
	// has been applied (including processing of overrides).
	//
	// This example implementation has reinserted explicit format codes
	// and BN, in order that the levels array correspond to the
	// initial text. Their final placement is not normative.
	// These codes are treated like WS in this implementation,
	// so they don't interrupt sequences of WS.

	validateLineBreaks(linebreaks, p.Len())

	result := append([]level(nil), p.resultLevels...)

	// don't worry about linebreaks since if there is a break within
	// a series of WS values preceding S, the linebreak itself
	// causes the reset.
	for i, t := range p.initialTypes {
		if t.in(B, S) {
			// Rule L1, clauses one and two.
			result[i] = p.embeddingLevel

			// Rule L1, clause three.
			for j := i - 1; j >= 0; j-- {
				if isWhitespace(p.initialTypes[j]) { // including format codes
					result[j] = p.embeddingLevel
				} else {
					break
				}
			}
		}
	}

	// Rule L1, clause four.
	start := 0
	for _, limit := range linebreaks {
		for j := limit - 1; j >= start; j-- {
			if isWhitespace(p.initialTypes[j]) { // including format codes
				result[j] = p.embeddingLevel
			} else {
				break
			}
		}
		start = limit
	}

	return result
}

// getReordering returns the reordering of lines from a visual index to a
// logical index for line breaks at the given offsets.
//
// Lines are concatenated from left to right. So for example, the fifth
// character from the left on the third line is
//
//	getReordering(linebreaks)[linebreaks[1] + 4]
//
// (linebreaks[1] is the position after the last character of the second
// line, which is also the index of the first character on the third line,
// and adding four gets the fifth character from the left).
//
// The linebreaks array must include at least one value. The values must be
// in strictly increasing order (no duplicates) between 1 and the length of
// the text, inclusive. The last value must be the length of the text.
func (p *paragraph) getReordering(linebreaks []int) []int {
	validateLineBreaks(linebreaks, p.Len())

	return computeMultilineReordering(p.getLevels(linebreaks), linebreaks)
}

// Return multiline reordering array for a given level array. Reordering
// does not occur across a line break.
func computeMultilineReordering(levels []level, linebreaks []int) []int {
	result := make([]int, len(levels))

	start := 0
	for _, limit := range linebreaks {
		tempLevels := make([]level, limit-start)
		copy(tempLevels, levels[start:])

		for j, order := range computeReordering(tempLevels) {
			result[start+j] = order + start
		}
		start = limit
	}
	return result
}

// Return reordering array for a given level array. This reorders a single
// line. The reordering is a visual to logical map. For example, the
// leftmost char is string.charAt(order[0]). Rule L2.
func computeReordering(levels []level) []int {
	result := make([]int, len(levels))
	// initialize order
	for i := range result {
		result[i] = i
	}

	// locate highest level found on line.
	// Note the rules say text, but no reordering across line bounds is
	// performed, so this is sufficient.
	highestLevel := level(0)
	lowestOddLevel := level(maxDepth + 2)
	for _, level := range levels {
		if level > highestLevel {
			highestLevel = level
		}
		if level&1 != 0 && level < lowestOddLevel {
			lowestOddLevel = level
		}
	}

	for level := highestLevel; level >= lowestOddLevel; level-- {
		for i := 0; i < len(levels); i++ {
			if levels[i] >= level {
				// find range of text at or above this level
				start := i
				limit := i + 1
				for limit < len(levels) && levels[limit] >= level {
					limit++
				}

				for j, k := start, limit-1; j < k; j, k = j+1, k-1 {
					result[j], result[k] = result[k], result[j]
				}
				// skip to end of level run
				i = limit
			}
		}
	}

	return result
}

// isWhitespace reports whether the type is considered a whitespace type for the
// line break rules.
func isWhitespace(c Class) bool {
	switch c {
	case LRE, RLE, LRO, RLO, PDF, LRI, RLI, FSI, PDI, BN, WS:
		return true
	}
	return false
}

// isRemovedByX9 reports whether the type is one of the types removed in X9.
func isRemovedByX9(c Class) bool {
	switch c {
	case LRE, RLE, LRO, RLO, PDF, BN:
		return true
	}
	return false
}

// typeForLevel reports the strong type (L or R) corresponding to the level.
func typeForLevel(level level) Class {
	if (level & 0x1) == 0 {
		return L
	}
	return R
}

func validateTypes(types []Class) error {
	if len(types) == 0 {
		return fmt.Errorf("types is null")
	}
	for i, t := range types[:len(types)-1] {
		if t == B {
			return fmt.Errorf("B type before end of paragraph at index: %d", i)
		}
	}
	return nil
}

func validateParagraphEmbeddingLevel(embeddingLevel level) error {
	if embeddingLevel != implicitLevel &&
		embeddingLevel != 0 &&
		embeddingLevel != 1 {
		return fmt.Errorf("illegal paragraph embedding level: %d", embeddingLevel)
	}
	return nil
}

func validateLineBreaks(linebreaks []int, textLength int) error {
	prev := 0
	for i, next := range linebreaks {
		if next <= prev {
			return fmt.Errorf("bad linebreak: %d at index: %d", next, i)
		}
		prev = next
	}
	if prev != textLength {
		return fmt.Errorf("last linebreak was %d, want %d", prev, textLength)
	}
	return nil
}

func validatePbTypes(pairTypes []bracketType) error {
	if len(pairTypes) == 0 {
		return fmt.Errorf("pairTypes is null")
	}
	for i, pt := range pairTypes {
		switch pt {
		case bpNone, bpOpen, bpClose:
		default:
			return fmt.Errorf("illegal pairType value at %d: %v", i, pairTypes[i])
		}
	}
	return nil
}

func validatePbValues(pairValues []rune, pairTypes []bracketType) error {
	if pairValues == nil {
		return fmt.Errorf("pairValues is null")
	}
	if len(pairTypes) != len(pairValues) {
		return fmt.Errorf("pairTypes is different length from pairValues")
	}
	return nil
}

Youez - 2016 - github.com/yon3zu
LinuXploit