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7 | #include "stdlib.h" |
7 | #include "stdlib.h" |
8 | #include "stdio.h" |
8 | #include "stdio.h" |
9 | |
9 | |
10 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
10 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
11 | # define snprintf _snprintf // C compilers have this in stdio.h |
11 | # define snprintf _snprintf // C compilers have this in stdio.h |
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12 | #endif |
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13 | |
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14 | // some old perls do not have this, try to make it work, no |
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15 | // guarentees, though. if it breaks, you get to keep the pieces. |
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16 | #ifndef UTF8_MAXBYTES |
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17 | # define UTF8_MAXBYTES 13 |
12 | #endif |
18 | #endif |
13 | |
19 | |
14 | #define F_ASCII 0x00000001UL |
20 | #define F_ASCII 0x00000001UL |
15 | #define F_LATIN1 0x00000002UL |
21 | #define F_LATIN1 0x00000002UL |
16 | #define F_UTF8 0x00000004UL |
22 | #define F_UTF8 0x00000004UL |
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49 | |
55 | |
50 | #define expect_false(expr) expect ((expr) != 0, 0) |
56 | #define expect_false(expr) expect ((expr) != 0, 0) |
51 | #define expect_true(expr) expect ((expr) != 0, 1) |
57 | #define expect_true(expr) expect ((expr) != 0, 1) |
52 | |
58 | |
53 | static HV *json_stash; // JSON::XS:: |
59 | static HV *json_stash; // JSON::XS:: |
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60 | static SV *json_true, *json_false; |
54 | |
61 | |
55 | ///////////////////////////////////////////////////////////////////////////// |
62 | ///////////////////////////////////////////////////////////////////////////// |
56 | // utility functions |
63 | // utility functions |
57 | |
64 | |
58 | static UV * |
65 | static UV * |
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178 | STRLEN clen; |
185 | STRLEN clen; |
179 | UV uch; |
186 | UV uch; |
180 | |
187 | |
181 | if (is_utf8) |
188 | if (is_utf8) |
182 | { |
189 | { |
183 | //uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY); |
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184 | uch = decode_utf8 (str, end - str, &clen); |
190 | uch = decode_utf8 (str, end - str, &clen); |
185 | if (clen == (STRLEN)-1) |
191 | if (clen == (STRLEN)-1) |
186 | croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str); |
192 | croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str); |
187 | } |
193 | } |
188 | else |
194 | else |
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631 | decode_4hex (dec_t *dec) |
637 | decode_4hex (dec_t *dec) |
632 | { |
638 | { |
633 | signed char d1, d2, d3, d4; |
639 | signed char d1, d2, d3, d4; |
634 | unsigned char *cur = (unsigned char *)dec->cur; |
640 | unsigned char *cur = (unsigned char *)dec->cur; |
635 | |
641 | |
636 | d1 = decode_hexdigit [cur [0]]; if (expect_false (d1 < 0)) ERR ("four hexadecimal digits expected"); |
642 | d1 = decode_hexdigit [cur [0]]; if (expect_false (d1 < 0)) ERR ("exactly four hexadecimal digits expected"); |
637 | d2 = decode_hexdigit [cur [1]]; if (expect_false (d2 < 0)) ERR ("four hexadecimal digits expected"); |
643 | d2 = decode_hexdigit [cur [1]]; if (expect_false (d2 < 0)) ERR ("exactly four hexadecimal digits expected"); |
638 | d3 = decode_hexdigit [cur [2]]; if (expect_false (d3 < 0)) ERR ("four hexadecimal digits expected"); |
644 | d3 = decode_hexdigit [cur [2]]; if (expect_false (d3 < 0)) ERR ("exactly four hexadecimal digits expected"); |
639 | d4 = decode_hexdigit [cur [3]]; if (expect_false (d4 < 0)) ERR ("four hexadecimal digits expected"); |
645 | d4 = decode_hexdigit [cur [3]]; if (expect_false (d4 < 0)) ERR ("exactly four hexadecimal digits expected"); |
640 | |
646 | |
641 | dec->cur += 4; |
647 | dec->cur += 4; |
642 | |
648 | |
643 | return ((UV)d1) << 12 |
649 | return ((UV)d1) << 12 |
644 | | ((UV)d2) << 8 |
650 | | ((UV)d2) << 8 |
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867 | { |
873 | { |
868 | // special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
874 | // special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
869 | if (*start == '-') |
875 | if (*start == '-') |
870 | switch (dec->cur - start) |
876 | switch (dec->cur - start) |
871 | { |
877 | { |
872 | case 2: return newSViv (-( start [1] - '0' )); |
878 | case 2: return newSViv (-( start [1] - '0' * 1)); |
873 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
879 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
874 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
880 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
875 | case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
881 | case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
876 | } |
882 | } |
877 | else |
883 | else |
878 | switch (dec->cur - start) |
884 | switch (dec->cur - start) |
879 | { |
885 | { |
880 | case 1: return newSViv ( start [0] - '0' ); |
886 | case 1: return newSViv ( start [0] - '0' * 1); |
881 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
887 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
882 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
888 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
883 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
889 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
884 | } |
890 | } |
885 | |
891 | |
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892 | if (uv < (UV)IV_MIN) |
898 | if (uv < (UV)IV_MIN) |
893 | return newSViv (-(IV)uv); |
899 | return newSViv (-(IV)uv); |
894 | } |
900 | } |
895 | else |
901 | else |
896 | return newSVuv (uv); |
902 | return newSVuv (uv); |
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903 | |
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904 | // here would likely be the place for bigint support |
897 | } |
905 | } |
898 | } |
906 | } |
899 | |
907 | |
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908 | // if we ever support bigint or bigfloat, this is the place for bigfloat |
900 | return newSVnv (Atof (start)); |
909 | return newSVnv (Atof (start)); |
901 | |
910 | |
902 | fail: |
911 | fail: |
903 | return 0; |
912 | return 0; |
904 | } |
913 | } |
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1005 | |
1014 | |
1006 | static SV * |
1015 | static SV * |
1007 | decode_sv (dec_t *dec) |
1016 | decode_sv (dec_t *dec) |
1008 | { |
1017 | { |
1009 | decode_ws (dec); |
1018 | decode_ws (dec); |
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1019 | |
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1020 | // the beauty of JSON: you need exactly one character lookahead |
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1021 | // to parse anything. |
1010 | switch (*dec->cur) |
1022 | switch (*dec->cur) |
1011 | { |
1023 | { |
1012 | case '"': ++dec->cur; return decode_str (dec); |
1024 | case '"': ++dec->cur; return decode_str (dec); |
1013 | case '[': ++dec->cur; return decode_av (dec); |
1025 | case '[': ++dec->cur; return decode_av (dec); |
1014 | case '{': ++dec->cur; return decode_hv (dec); |
1026 | case '{': ++dec->cur; return decode_hv (dec); |
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1020 | |
1032 | |
1021 | case 't': |
1033 | case 't': |
1022 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1034 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1023 | { |
1035 | { |
1024 | dec->cur += 4; |
1036 | dec->cur += 4; |
1025 | return newSViv (1); |
1037 | return SvREFCNT_inc (json_true); |
1026 | } |
1038 | } |
1027 | else |
1039 | else |
1028 | ERR ("'true' expected"); |
1040 | ERR ("'true' expected"); |
1029 | |
1041 | |
1030 | break; |
1042 | break; |
1031 | |
1043 | |
1032 | case 'f': |
1044 | case 'f': |
1033 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1045 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1034 | { |
1046 | { |
1035 | dec->cur += 5; |
1047 | dec->cur += 5; |
1036 | return newSViv (0); |
1048 | return SvREFCNT_inc (json_false); |
1037 | } |
1049 | } |
1038 | else |
1050 | else |
1039 | ERR ("'false' expected"); |
1051 | ERR ("'false' expected"); |
1040 | |
1052 | |
1041 | break; |
1053 | break; |
… | |
… | |
1144 | |
1156 | |
1145 | BOOT: |
1157 | BOOT: |
1146 | { |
1158 | { |
1147 | int i; |
1159 | int i; |
1148 | |
1160 | |
1149 | memset (decode_hexdigit, 0xff, 256); |
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1150 | |
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1151 | for (i = 0; i < 256; ++i) |
1161 | for (i = 0; i < 256; ++i) |
1152 | decode_hexdigit [i] = |
1162 | decode_hexdigit [i] = |
1153 | i >= '0' && i <= '9' ? i - '0' |
1163 | i >= '0' && i <= '9' ? i - '0' |
1154 | : i >= 'a' && i <= 'f' ? i - 'a' + 10 |
1164 | : i >= 'a' && i <= 'f' ? i - 'a' + 10 |
1155 | : i >= 'A' && i <= 'F' ? i - 'A' + 10 |
1165 | : i >= 'A' && i <= 'F' ? i - 'A' + 10 |
1156 | : -1; |
1166 | : -1; |
1157 | |
1167 | |
1158 | json_stash = gv_stashpv ("JSON::XS", 1); |
1168 | json_stash = gv_stashpv ("JSON::XS", 1); |
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1169 | |
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1170 | json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true ); |
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1171 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1159 | } |
1172 | } |
1160 | |
1173 | |
1161 | PROTOTYPES: DISABLE |
1174 | PROTOTYPES: DISABLE |
1162 | |
1175 | |
1163 | SV *new (char *dummy) |
1176 | SV *new (char *dummy) |