[364] | 1 | /* Copyright (C) 2012-2015 Mark Nunberg.
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| 2 | *
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| 3 | * See included LICENSE file for license details.
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| 4 | */
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| 5 | /* copy from LICENSE file
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| 6 | Copyright (c) 2012-2015 M. Nunberg, mnunberg@haskalah.org
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| 7 |
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| 8 | Permission is hereby granted, free of charge, to any person obtaining
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| 9 | a copy of this software and associated documentation files (the
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| 10 | "Software"), to deal in the Software without restriction, including
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| 11 | without limitation the rights to use, copy, modify, merge, publish,
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| 12 | distribute, sublicense, and/or sell copies of the Software, and to
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| 13 | permit persons to whom the Software is furnished to do so, subject to
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| 14 | the following conditions:
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| 15 |
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| 16 | The above copyright notice and this permission notice shall be
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| 17 | included in all copies or substantial portions of the Software.
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| 18 |
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| 19 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 20 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| 21 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 22 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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| 23 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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| 24 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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| 25 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 26 | */
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| 27 | #include "jsonsl.h"
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| 28 | #include <limits.h>
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| 29 | #include <ctype.h>
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| 30 |
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| 31 | #ifdef JSONSL_USE_METRICS
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| 32 | #define XMETRICS \
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| 33 | X(STRINGY_INSIGNIFICANT) \
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| 34 | X(STRINGY_SLOWPATH) \
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| 35 | X(ALLOWED_WHITESPACE) \
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| 36 | X(QUOTE_FASTPATH) \
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| 37 | X(SPECIAL_FASTPATH) \
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| 38 | X(SPECIAL_WSPOP) \
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| 39 | X(SPECIAL_SLOWPATH) \
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| 40 | X(GENERIC) \
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| 41 | X(STRUCTURAL_TOKEN) \
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| 42 | X(SPECIAL_SWITCHFIRST) \
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| 43 | X(STRINGY_CATCH) \
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| 44 | X(NUMBER_FASTPATH) \
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| 45 | X(ESCAPES) \
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| 46 | X(TOTAL) \
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| 47 |
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| 48 | struct jsonsl_metrics_st {
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| 49 | #define X(m) \
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| 50 | unsigned long metric_##m;
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| 51 | XMETRICS
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| 52 | #undef X
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| 53 | };
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| 54 |
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| 55 | static struct jsonsl_metrics_st GlobalMetrics = { 0 };
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| 56 | static unsigned long GenericCounter[0x100] = { 0 };
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| 57 | static unsigned long StringyCatchCounter[0x100] = { 0 };
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| 58 |
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| 59 | #define INCR_METRIC(m) \
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| 60 | GlobalMetrics.metric_##m++;
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| 61 |
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| 62 | #define INCR_GENERIC(c) \
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| 63 | INCR_METRIC(GENERIC); \
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| 64 | GenericCounter[c]++; \
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| 65 |
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| 66 | #define INCR_STRINGY_CATCH(c) \
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| 67 | INCR_METRIC(STRINGY_CATCH); \
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| 68 | StringyCatchCounter[c]++;
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| 69 |
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| 70 | JSONSL_API
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| 71 | void jsonsl_dump_global_metrics(void)
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| 72 | {
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| 73 | int ii;
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| 74 | printf("JSONSL Metrics:\n");
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| 75 | #define X(m) \
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| 76 | printf("\t%-30s %20lu (%0.2f%%)\n", #m, GlobalMetrics.metric_##m, \
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| 77 | (float)((float)(GlobalMetrics.metric_##m/(float)GlobalMetrics.metric_TOTAL)) * 100);
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| 78 | XMETRICS
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| 79 | #undef X
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| 80 | printf("Generic Characters:\n");
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| 81 | for (ii = 0; ii < 0xff; ii++) {
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| 82 | if (GenericCounter[ii]) {
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| 83 | printf("\t[ %c ] %lu\n", ii, GenericCounter[ii]);
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| 84 | }
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| 85 | }
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| 86 | printf("Weird string loop\n");
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| 87 | for (ii = 0; ii < 0xff; ii++) {
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| 88 | if (StringyCatchCounter[ii]) {
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| 89 | printf("\t[ %c ] %lu\n", ii, StringyCatchCounter[ii]);
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| 90 | }
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| 91 | }
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| 92 | }
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| 93 |
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| 94 | #else
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| 95 | #define INCR_METRIC(m)
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| 96 | #define INCR_GENERIC(c)
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| 97 | #define INCR_STRINGY_CATCH(c)
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| 98 | JSONSL_API
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| 99 | void jsonsl_dump_global_metrics(void) { }
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| 100 | #endif /* JSONSL_USE_METRICS */
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| 101 |
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| 102 | #define CASE_DIGITS \
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| 103 | case '1': \
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| 104 | case '2': \
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| 105 | case '3': \
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| 106 | case '4': \
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| 107 | case '5': \
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| 108 | case '6': \
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| 109 | case '7': \
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| 110 | case '8': \
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| 111 | case '9': \
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| 112 | case '0':
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| 113 |
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| 114 | static unsigned extract_special(unsigned);
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| 115 | static int is_special_end(unsigned);
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| 116 | static int is_allowed_whitespace(unsigned);
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| 117 | static int is_allowed_escape(unsigned);
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| 118 | static int is_simple_char(unsigned);
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| 119 | static char get_escape_equiv(unsigned);
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| 120 |
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| 121 | JSONSL_API
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| 122 | jsonsl_t jsonsl_new(int nlevels)
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| 123 | {
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| 124 | unsigned int ii;
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| 125 | struct jsonsl_st * jsn;
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| 126 |
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| 127 | if (nlevels < 2) {
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| 128 | return NULL;
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| 129 | }
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| 130 |
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| 131 | jsn = (struct jsonsl_st *)
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| 132 | calloc(1, sizeof (*jsn) +
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| 133 | ( (nlevels-1) * sizeof (struct jsonsl_state_st) )
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| 134 | );
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| 135 |
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| 136 | jsn->levels_max = (unsigned int) nlevels;
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| 137 | jsn->max_callback_level = UINT_MAX;
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| 138 | jsonsl_reset(jsn);
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| 139 | for (ii = 0; ii < jsn->levels_max; ii++) {
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| 140 | jsn->stack[ii].level = ii;
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| 141 | }
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| 142 | return jsn;
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| 143 | }
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| 144 |
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| 145 | JSONSL_API
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| 146 | void jsonsl_reset(jsonsl_t jsn)
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| 147 | {
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| 148 | jsn->tok_last = 0;
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| 149 | jsn->can_insert = 1;
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| 150 | jsn->pos = 0;
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| 151 | jsn->level = 0;
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| 152 | jsn->stopfl = 0;
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| 153 | jsn->in_escape = 0;
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| 154 | jsn->expecting = 0;
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| 155 | }
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| 156 |
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| 157 | JSONSL_API
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| 158 | void jsonsl_destroy(jsonsl_t jsn)
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| 159 | {
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| 160 | if (jsn) {
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| 161 | free(jsn);
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| 162 | }
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| 163 | }
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| 164 |
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| 165 |
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| 166 | #define FASTPARSE_EXHAUSTED 1
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| 167 | #define FASTPARSE_BREAK 0
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| 168 |
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| 169 | /*
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| 170 | * This function is meant to accelerate string parsing, reducing the main loop's
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| 171 | * check if we are indeed a string.
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| 172 | *
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| 173 | * @param jsn the parser
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| 174 | * @param[in,out] bytes_p A pointer to the current buffer (i.e. current position)
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| 175 | * @param[in,out] nbytes_p A pointer to the current size of the buffer
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| 176 | * @return true if all bytes have been exhausted (and thus the main loop can
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| 177 | * return), false if a special character was examined which requires greater
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| 178 | * examination.
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| 179 | */
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| 180 | static int
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| 181 | jsonsl__str_fastparse(jsonsl_t jsn,
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| 182 | const jsonsl_uchar_t **bytes_p, size_t *nbytes_p)
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| 183 | {
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| 184 | const jsonsl_uchar_t *bytes = *bytes_p;
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| 185 | const jsonsl_uchar_t *end;
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| 186 | for (end = bytes + *nbytes_p; bytes != end; bytes++) {
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| 187 | if (
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| 188 | #ifdef JSONSL_USE_WCHAR
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| 189 | *bytes >= 0x100 ||
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| 190 | #endif /* JSONSL_USE_WCHAR */
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| 191 | (is_simple_char(*bytes))) {
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| 192 | INCR_METRIC(TOTAL);
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| 193 | INCR_METRIC(STRINGY_INSIGNIFICANT);
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| 194 | } else {
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| 195 | /* Once we're done here, re-calculate the position variables */
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| 196 | jsn->pos += (bytes - *bytes_p);
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| 197 | *nbytes_p -= (bytes - *bytes_p);
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| 198 | *bytes_p = bytes;
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| 199 | return FASTPARSE_BREAK;
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| 200 | }
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| 201 | }
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| 202 |
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| 203 | /* Once we're done here, re-calculate the position variables */
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| 204 | jsn->pos += (bytes - *bytes_p);
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| 205 | return FASTPARSE_EXHAUSTED;
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| 206 | }
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| 207 |
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| 208 | /* Functions exactly like str_fastparse, except it also accepts a 'state'
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| 209 | * argument, since the number's value is updated in the state. */
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| 210 | static int
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| 211 | jsonsl__num_fastparse(jsonsl_t jsn,
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| 212 | const jsonsl_uchar_t **bytes_p, size_t *nbytes_p,
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| 213 | struct jsonsl_state_st *state)
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| 214 | {
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| 215 | int exhausted = 1;
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| 216 | size_t nbytes = *nbytes_p;
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| 217 | const jsonsl_uchar_t *bytes = *bytes_p;
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| 218 |
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| 219 | for (; nbytes; nbytes--, bytes++) {
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| 220 | jsonsl_uchar_t c = *bytes;
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| 221 | if (isdigit(c)) {
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| 222 | INCR_METRIC(TOTAL);
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| 223 | INCR_METRIC(NUMBER_FASTPATH);
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| 224 | state->nelem = (state->nelem * 10) + (c - 0x30);
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| 225 | } else {
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| 226 | exhausted = 0;
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| 227 | break;
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| 228 | }
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| 229 | }
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| 230 | jsn->pos += (*nbytes_p - nbytes);
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| 231 | if (exhausted) {
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| 232 | return FASTPARSE_EXHAUSTED;
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| 233 | }
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| 234 | *nbytes_p = nbytes;
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| 235 | *bytes_p = bytes;
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| 236 | return FASTPARSE_BREAK;
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| 237 | }
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| 238 |
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| 239 | JSONSL_API
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| 240 | void
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| 241 | jsonsl_feed(jsonsl_t jsn, const jsonsl_char_t *bytes, size_t nbytes)
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| 242 | {
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| 243 |
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| 244 | #define INVOKE_ERROR(eb) \
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| 245 | if (jsn->error_callback(jsn, JSONSL_ERROR_##eb, state, (char*)c)) { \
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| 246 | goto GT_AGAIN; \
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| 247 | } \
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| 248 | return;
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| 249 |
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| 250 | #define STACK_PUSH \
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| 251 | if (jsn->level >= (levels_max-1)) { \
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| 252 | jsn->error_callback(jsn, JSONSL_ERROR_LEVELS_EXCEEDED, state, (char*)c); \
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| 253 | return; \
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| 254 | } \
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| 255 | state = jsn->stack + (++jsn->level); \
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| 256 | state->ignore_callback = jsn->stack[jsn->level-1].ignore_callback; \
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| 257 | state->pos_begin = jsn->pos;
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| 258 |
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| 259 | #define STACK_POP_NOPOS \
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| 260 | state->pos_cur = jsn->pos; \
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| 261 | state = jsn->stack + (--jsn->level);
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| 262 |
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| 263 |
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| 264 | #define STACK_POP \
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| 265 | STACK_POP_NOPOS; \
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| 266 | state->pos_cur = jsn->pos;
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| 267 |
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| 268 | #define CALLBACK_AND_POP_NOPOS(T) \
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| 269 | state->pos_cur = jsn->pos; \
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| 270 | DO_CALLBACK(T, POP); \
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| 271 | state->nescapes = 0; \
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| 272 | state = jsn->stack + (--jsn->level);
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| 273 |
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| 274 | #define CALLBACK_AND_POP(T) \
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| 275 | CALLBACK_AND_POP_NOPOS(T); \
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| 276 | state->pos_cur = jsn->pos;
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| 277 |
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| 278 | #define SPECIAL_POP \
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| 279 | CALLBACK_AND_POP(SPECIAL); \
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| 280 | jsn->expecting = 0; \
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| 281 | jsn->tok_last = 0; \
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| 282 |
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| 283 | #define CUR_CHAR (*(jsonsl_uchar_t*)c)
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| 284 |
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| 285 | #define DO_CALLBACK(T, action) \
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| 286 | if (jsn->call_##T && \
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| 287 | jsn->max_callback_level > state->level && \
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| 288 | state->ignore_callback == 0) { \
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| 289 | \
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| 290 | if (jsn->action_callback_##action) { \
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| 291 | jsn->action_callback_##action(jsn, JSONSL_ACTION_##action, state, (jsonsl_char_t*)c); \
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| 292 | } else if (jsn->action_callback) { \
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| 293 | jsn->action_callback(jsn, JSONSL_ACTION_##action, state, (jsonsl_char_t*)c); \
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| 294 | } \
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| 295 | if (jsn->stopfl) { return; } \
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| 296 | }
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| 297 |
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| 298 | /**
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| 299 | * Verifies that we are able to insert the (non-string) item into a hash.
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| 300 | */
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| 301 | #define ENSURE_HVAL \
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| 302 | if (state->nelem % 2 == 0 && state->type == JSONSL_T_OBJECT) { \
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| 303 | INVOKE_ERROR(HKEY_EXPECTED); \
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| 304 | }
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| 305 |
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| 306 | #define VERIFY_SPECIAL(lit) \
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| 307 | if (CUR_CHAR != (lit)[jsn->pos - state->pos_begin]) { \
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| 308 | INVOKE_ERROR(SPECIAL_EXPECTED); \
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| 309 | }
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| 310 |
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| 311 | #define VERIFY_SPECIAL_CI(lit) \
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| 312 | if (tolower(CUR_CHAR) != (lit)[jsn->pos - state->pos_begin]) { \
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| 313 | INVOKE_ERROR(SPECIAL_EXPECTED); \
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| 314 | }
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| 315 |
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| 316 | #define STATE_SPECIAL_LENGTH \
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| 317 | (state)->nescapes
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| 318 |
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| 319 | #define IS_NORMAL_NUMBER \
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| 320 | ((state)->special_flags == JSONSL_SPECIALf_UNSIGNED || \
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| 321 | (state)->special_flags == JSONSL_SPECIALf_SIGNED)
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| 322 |
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| 323 | #define STATE_NUM_LAST jsn->tok_last
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| 324 |
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| 325 | #define CONTINUE_NEXT_CHAR() continue
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| 326 |
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| 327 | const jsonsl_uchar_t *c = (jsonsl_uchar_t*)bytes;
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| 328 | size_t levels_max = jsn->levels_max;
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| 329 | struct jsonsl_state_st *state = jsn->stack + jsn->level;
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| 330 | jsn->base = bytes;
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| 331 |
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| 332 | for (; nbytes; nbytes--, jsn->pos++, c++) {
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| 333 | unsigned state_type;
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| 334 | INCR_METRIC(TOTAL);
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| 335 |
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| 336 | GT_AGAIN:
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| 337 | state_type = state->type;
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| 338 | /* Most common type is typically a string: */
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| 339 | if (state_type & JSONSL_Tf_STRINGY) {
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| 340 | /* Special escape handling for some stuff */
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| 341 | if (jsn->in_escape) {
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| 342 | jsn->in_escape = 0;
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| 343 | if (!is_allowed_escape(CUR_CHAR)) {
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| 344 | INVOKE_ERROR(ESCAPE_INVALID);
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| 345 | } else if (CUR_CHAR == 'u') {
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| 346 | DO_CALLBACK(UESCAPE, UESCAPE);
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| 347 | if (jsn->return_UESCAPE) {
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| 348 | return;
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| 349 | }
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| 350 | }
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| 351 | CONTINUE_NEXT_CHAR();
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| 352 | }
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| 353 |
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| 354 | if (jsonsl__str_fastparse(jsn, &c, &nbytes) ==
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| 355 | FASTPARSE_EXHAUSTED) {
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| 356 | /* No need to readjust variables as we've exhausted the iterator */
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| 357 | return;
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| 358 | } else {
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| 359 | if (CUR_CHAR == '"') {
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| 360 | goto GT_QUOTE;
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| 361 | } else if (CUR_CHAR == '\\') {
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| 362 | goto GT_ESCAPE;
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| 363 | } else {
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| 364 | INVOKE_ERROR(WEIRD_WHITESPACE);
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| 365 | }
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| 366 | }
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| 367 | INCR_METRIC(STRINGY_SLOWPATH);
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| 368 |
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| 369 | } else if (state_type == JSONSL_T_SPECIAL) {
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| 370 | /* Fast track for signed/unsigned */
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| 371 | if (IS_NORMAL_NUMBER) {
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| 372 | if (jsonsl__num_fastparse(jsn, &c, &nbytes, state) ==
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| 373 | FASTPARSE_EXHAUSTED) {
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| 374 | return;
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| 375 | } else {
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| 376 | goto GT_SPECIAL_NUMERIC;
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| 377 | }
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| 378 | } else if (state->special_flags == JSONSL_SPECIALf_DASH) {
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| 379 | #ifdef JSONSL_PARSE_NAN
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| 380 | if (CUR_CHAR == 'I' || CUR_CHAR == 'i') {
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| 381 | /* parsing -Infinity? */
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| 382 | state->special_flags = JSONSL_SPECIALf_NEG_INF;
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| 383 | CONTINUE_NEXT_CHAR();
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| 384 | }
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| 385 | #endif
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| 386 |
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| 387 | if (!isdigit(CUR_CHAR)) {
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| 388 | INVOKE_ERROR(INVALID_NUMBER);
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| 389 | }
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| 390 |
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| 391 | if (CUR_CHAR == '0') {
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| 392 | state->special_flags = JSONSL_SPECIALf_ZERO|JSONSL_SPECIALf_SIGNED;
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| 393 | } else if (isdigit(CUR_CHAR)) {
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| 394 | state->special_flags = JSONSL_SPECIALf_SIGNED;
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| 395 | state->nelem = CUR_CHAR - 0x30;
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| 396 | } else {
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| 397 | INVOKE_ERROR(INVALID_NUMBER);
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| 398 | }
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| 399 | CONTINUE_NEXT_CHAR();
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| 400 |
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| 401 | } else if (state->special_flags == JSONSL_SPECIALf_ZERO) {
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| 402 | if (isdigit(CUR_CHAR)) {
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| 403 | /* Following a zero! */
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| 404 | INVOKE_ERROR(INVALID_NUMBER);
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| 405 | }
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| 406 | /* Unset the 'zero' flag: */
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| 407 | if (state->special_flags & JSONSL_SPECIALf_SIGNED) {
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| 408 | state->special_flags = JSONSL_SPECIALf_SIGNED;
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| 409 | } else {
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| 410 | state->special_flags = JSONSL_SPECIALf_UNSIGNED;
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| 411 | }
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| 412 | goto GT_SPECIAL_NUMERIC;
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| 413 | }
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| 414 |
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| 415 | if ((state->special_flags & JSONSL_SPECIALf_NUMERIC) &&
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| 416 | !(state->special_flags & JSONSL_SPECIALf_INF)) {
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| 417 | GT_SPECIAL_NUMERIC:
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| 418 | switch (CUR_CHAR) {
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| 419 | CASE_DIGITS
|
---|
| 420 | STATE_NUM_LAST = '1';
|
---|
| 421 | CONTINUE_NEXT_CHAR();
|
---|
| 422 |
|
---|
| 423 | case '.':
|
---|
| 424 | if (state->special_flags & JSONSL_SPECIALf_FLOAT) {
|
---|
| 425 | INVOKE_ERROR(INVALID_NUMBER);
|
---|
| 426 | }
|
---|
| 427 | state->special_flags |= JSONSL_SPECIALf_FLOAT;
|
---|
| 428 | STATE_NUM_LAST = '.';
|
---|
| 429 | CONTINUE_NEXT_CHAR();
|
---|
| 430 |
|
---|
| 431 | case 'e':
|
---|
| 432 | case 'E':
|
---|
| 433 | if (state->special_flags & JSONSL_SPECIALf_EXPONENT) {
|
---|
| 434 | INVOKE_ERROR(INVALID_NUMBER);
|
---|
| 435 | }
|
---|
| 436 | state->special_flags |= JSONSL_SPECIALf_EXPONENT;
|
---|
| 437 | STATE_NUM_LAST = 'e';
|
---|
| 438 | CONTINUE_NEXT_CHAR();
|
---|
| 439 |
|
---|
| 440 | case '-':
|
---|
| 441 | case '+':
|
---|
| 442 | if (STATE_NUM_LAST != 'e') {
|
---|
| 443 | INVOKE_ERROR(INVALID_NUMBER);
|
---|
| 444 | }
|
---|
| 445 | STATE_NUM_LAST = '-';
|
---|
| 446 | CONTINUE_NEXT_CHAR();
|
---|
| 447 |
|
---|
| 448 | default:
|
---|
| 449 | if (is_special_end(CUR_CHAR)) {
|
---|
| 450 | goto GT_SPECIAL_POP;
|
---|
| 451 | }
|
---|
| 452 | INVOKE_ERROR(INVALID_NUMBER);
|
---|
| 453 | break;
|
---|
| 454 | }
|
---|
| 455 | }
|
---|
| 456 | /* else if (!NUMERIC) */
|
---|
| 457 | if (!is_special_end(CUR_CHAR)) {
|
---|
| 458 | STATE_SPECIAL_LENGTH++;
|
---|
| 459 |
|
---|
| 460 | /* Verify TRUE, FALSE, NULL */
|
---|
| 461 | if (state->special_flags == JSONSL_SPECIALf_TRUE) {
|
---|
| 462 | VERIFY_SPECIAL("true");
|
---|
| 463 | } else if (state->special_flags == JSONSL_SPECIALf_FALSE) {
|
---|
| 464 | VERIFY_SPECIAL("false");
|
---|
| 465 | } else if (state->special_flags == JSONSL_SPECIALf_NULL) {
|
---|
| 466 | VERIFY_SPECIAL("null");
|
---|
| 467 | #ifdef JSONSL_PARSE_NAN
|
---|
| 468 | } else if (state->special_flags == JSONSL_SPECIALf_POS_INF) {
|
---|
| 469 | VERIFY_SPECIAL_CI("infinity");
|
---|
| 470 | } else if (state->special_flags == JSONSL_SPECIALf_NEG_INF) {
|
---|
| 471 | VERIFY_SPECIAL_CI("-infinity");
|
---|
| 472 | } else if (state->special_flags == JSONSL_SPECIALf_NAN) {
|
---|
| 473 | VERIFY_SPECIAL_CI("nan");
|
---|
| 474 | } else if (state->special_flags & JSONSL_SPECIALf_NULL ||
|
---|
| 475 | state->special_flags & JSONSL_SPECIALf_NAN) {
|
---|
| 476 | /* previous char was "n", are we parsing null or nan? */
|
---|
| 477 | if (CUR_CHAR != 'u') {
|
---|
| 478 | state->special_flags &= ~JSONSL_SPECIALf_NULL;
|
---|
| 479 | }
|
---|
| 480 |
|
---|
| 481 | if (tolower(CUR_CHAR) != 'a') {
|
---|
| 482 | state->special_flags &= ~JSONSL_SPECIALf_NAN;
|
---|
| 483 | }
|
---|
| 484 | #endif
|
---|
| 485 | }
|
---|
| 486 | INCR_METRIC(SPECIAL_FASTPATH);
|
---|
| 487 | CONTINUE_NEXT_CHAR();
|
---|
| 488 | }
|
---|
| 489 |
|
---|
| 490 | GT_SPECIAL_POP:
|
---|
| 491 | jsn->can_insert = 0;
|
---|
| 492 | if (IS_NORMAL_NUMBER) {
|
---|
| 493 | /* Nothing */
|
---|
| 494 | } else if (state->special_flags == JSONSL_SPECIALf_ZERO ||
|
---|
| 495 | state->special_flags == (JSONSL_SPECIALf_ZERO|JSONSL_SPECIALf_SIGNED)) {
|
---|
| 496 | /* 0 is unsigned! */
|
---|
| 497 | state->special_flags = JSONSL_SPECIALf_UNSIGNED;
|
---|
| 498 | } else if (state->special_flags == JSONSL_SPECIALf_DASH) {
|
---|
| 499 | /* Still in dash! */
|
---|
| 500 | INVOKE_ERROR(INVALID_NUMBER);
|
---|
| 501 | } else if (state->special_flags & JSONSL_SPECIALf_INF) {
|
---|
| 502 | if (STATE_SPECIAL_LENGTH != 8) {
|
---|
| 503 | INVOKE_ERROR(SPECIAL_INCOMPLETE);
|
---|
| 504 | }
|
---|
| 505 | state->nelem = 1;
|
---|
| 506 | } else if (state->special_flags & JSONSL_SPECIALf_NUMERIC) {
|
---|
| 507 | /* Check that we're not at the end of a token */
|
---|
| 508 | if (STATE_NUM_LAST != '1') {
|
---|
| 509 | INVOKE_ERROR(INVALID_NUMBER);
|
---|
| 510 | }
|
---|
| 511 | } else if (state->special_flags == JSONSL_SPECIALf_TRUE) {
|
---|
| 512 | if (STATE_SPECIAL_LENGTH != 4) {
|
---|
| 513 | INVOKE_ERROR(SPECIAL_INCOMPLETE);
|
---|
| 514 | }
|
---|
| 515 | state->nelem = 1;
|
---|
| 516 | } else if (state->special_flags == JSONSL_SPECIALf_FALSE) {
|
---|
| 517 | if (STATE_SPECIAL_LENGTH != 5) {
|
---|
| 518 | INVOKE_ERROR(SPECIAL_INCOMPLETE);
|
---|
| 519 | }
|
---|
| 520 | } else if (state->special_flags == JSONSL_SPECIALf_NULL) {
|
---|
| 521 | if (STATE_SPECIAL_LENGTH != 4) {
|
---|
| 522 | INVOKE_ERROR(SPECIAL_INCOMPLETE);
|
---|
| 523 | }
|
---|
| 524 | }
|
---|
| 525 | SPECIAL_POP;
|
---|
| 526 | jsn->expecting = ',';
|
---|
| 527 | if (is_allowed_whitespace(CUR_CHAR)) {
|
---|
| 528 | CONTINUE_NEXT_CHAR();
|
---|
| 529 | }
|
---|
| 530 | /**
|
---|
| 531 | * This works because we have a non-whitespace token
|
---|
| 532 | * which is not a special token. If this is a structural
|
---|
| 533 | * character then it will be gracefully handled by the
|
---|
| 534 | * switch statement. Otherwise it will default to the 'special'
|
---|
| 535 | * state again,
|
---|
| 536 | */
|
---|
| 537 | goto GT_STRUCTURAL_TOKEN;
|
---|
| 538 | } else if (is_allowed_whitespace(CUR_CHAR)) {
|
---|
| 539 | INCR_METRIC(ALLOWED_WHITESPACE);
|
---|
| 540 | /* So we're not special. Harmless insignificant whitespace
|
---|
| 541 | * passthrough
|
---|
| 542 | */
|
---|
| 543 | CONTINUE_NEXT_CHAR();
|
---|
| 544 | } else if (extract_special(CUR_CHAR)) {
|
---|
| 545 | /* not a string, whitespace, or structural token. must be special */
|
---|
| 546 | goto GT_SPECIAL_BEGIN;
|
---|
| 547 | }
|
---|
| 548 |
|
---|
| 549 | INCR_GENERIC(CUR_CHAR);
|
---|
| 550 |
|
---|
| 551 | if (CUR_CHAR == '"') {
|
---|
| 552 | GT_QUOTE:
|
---|
| 553 | jsn->can_insert = 0;
|
---|
| 554 | switch (state_type) {
|
---|
| 555 |
|
---|
| 556 | /* the end of a string or hash key */
|
---|
| 557 | case JSONSL_T_STRING:
|
---|
| 558 | CALLBACK_AND_POP(STRING);
|
---|
| 559 | CONTINUE_NEXT_CHAR();
|
---|
| 560 | case JSONSL_T_HKEY:
|
---|
| 561 | CALLBACK_AND_POP(HKEY);
|
---|
| 562 | CONTINUE_NEXT_CHAR();
|
---|
| 563 |
|
---|
| 564 | case JSONSL_T_OBJECT:
|
---|
| 565 | state->nelem++;
|
---|
| 566 | if ( (state->nelem-1) % 2 ) {
|
---|
| 567 | /* Odd, this must be a hash value */
|
---|
| 568 | if (jsn->tok_last != ':') {
|
---|
| 569 | INVOKE_ERROR(MISSING_TOKEN);
|
---|
| 570 | }
|
---|
| 571 | jsn->expecting = ','; /* Can't figure out what to expect next */
|
---|
| 572 | jsn->tok_last = 0;
|
---|
| 573 |
|
---|
| 574 | STACK_PUSH;
|
---|
| 575 | state->type = JSONSL_T_STRING;
|
---|
| 576 | DO_CALLBACK(STRING, PUSH);
|
---|
| 577 |
|
---|
| 578 | } else {
|
---|
| 579 | /* hash key */
|
---|
| 580 | if (jsn->expecting != '"') {
|
---|
| 581 | INVOKE_ERROR(STRAY_TOKEN);
|
---|
| 582 | }
|
---|
| 583 | jsn->tok_last = 0;
|
---|
| 584 | jsn->expecting = ':';
|
---|
| 585 |
|
---|
| 586 | STACK_PUSH;
|
---|
| 587 | state->type = JSONSL_T_HKEY;
|
---|
| 588 | DO_CALLBACK(HKEY, PUSH);
|
---|
| 589 | }
|
---|
| 590 | CONTINUE_NEXT_CHAR();
|
---|
| 591 |
|
---|
| 592 | case JSONSL_T_LIST:
|
---|
| 593 | state->nelem++;
|
---|
| 594 | STACK_PUSH;
|
---|
| 595 | state->type = JSONSL_T_STRING;
|
---|
| 596 | jsn->expecting = ',';
|
---|
| 597 | jsn->tok_last = 0;
|
---|
| 598 | DO_CALLBACK(STRING, PUSH);
|
---|
| 599 | CONTINUE_NEXT_CHAR();
|
---|
| 600 |
|
---|
| 601 | case JSONSL_T_SPECIAL:
|
---|
| 602 | INVOKE_ERROR(STRAY_TOKEN);
|
---|
| 603 | break;
|
---|
| 604 |
|
---|
| 605 | default:
|
---|
| 606 | INVOKE_ERROR(STRING_OUTSIDE_CONTAINER);
|
---|
| 607 | break;
|
---|
| 608 | } /* switch(state->type) */
|
---|
| 609 | } else if (CUR_CHAR == '\\') {
|
---|
| 610 | GT_ESCAPE:
|
---|
| 611 | INCR_METRIC(ESCAPES);
|
---|
| 612 | /* Escape */
|
---|
| 613 | if ( (state->type & JSONSL_Tf_STRINGY) == 0 ) {
|
---|
| 614 | INVOKE_ERROR(ESCAPE_OUTSIDE_STRING);
|
---|
| 615 | }
|
---|
| 616 | state->nescapes++;
|
---|
| 617 | jsn->in_escape = 1;
|
---|
| 618 | CONTINUE_NEXT_CHAR();
|
---|
| 619 | } /* " or \ */
|
---|
| 620 |
|
---|
| 621 | GT_STRUCTURAL_TOKEN:
|
---|
| 622 | switch (CUR_CHAR) {
|
---|
| 623 | case ':':
|
---|
| 624 | INCR_METRIC(STRUCTURAL_TOKEN);
|
---|
| 625 | if (jsn->expecting != CUR_CHAR) {
|
---|
| 626 | INVOKE_ERROR(STRAY_TOKEN);
|
---|
| 627 | }
|
---|
| 628 | jsn->tok_last = ':';
|
---|
| 629 | jsn->can_insert = 1;
|
---|
| 630 | jsn->expecting = '"';
|
---|
| 631 | CONTINUE_NEXT_CHAR();
|
---|
| 632 |
|
---|
| 633 | case ',':
|
---|
| 634 | INCR_METRIC(STRUCTURAL_TOKEN);
|
---|
| 635 | /**
|
---|
| 636 | * The comma is one of the more generic tokens.
|
---|
| 637 | * In the context of an OBJECT, the can_insert flag
|
---|
| 638 | * should never be set, and no other action is
|
---|
| 639 | * necessary.
|
---|
| 640 | */
|
---|
| 641 | if (jsn->expecting != CUR_CHAR) {
|
---|
| 642 | /* make this branch execute only when we haven't manually
|
---|
| 643 | * just placed the ',' in the expecting register.
|
---|
| 644 | */
|
---|
| 645 | INVOKE_ERROR(STRAY_TOKEN);
|
---|
| 646 | }
|
---|
| 647 |
|
---|
| 648 | if (state->type == JSONSL_T_OBJECT) {
|
---|
| 649 | /* end of hash value, expect a string as a hash key */
|
---|
| 650 | jsn->expecting = '"';
|
---|
| 651 | } else {
|
---|
| 652 | jsn->can_insert = 1;
|
---|
| 653 | }
|
---|
| 654 |
|
---|
| 655 | jsn->tok_last = ',';
|
---|
| 656 | jsn->expecting = '"';
|
---|
| 657 | CONTINUE_NEXT_CHAR();
|
---|
| 658 |
|
---|
| 659 | /* new list or object */
|
---|
| 660 | /* hashes are more common */
|
---|
| 661 | case '{':
|
---|
| 662 | case '[':
|
---|
| 663 | INCR_METRIC(STRUCTURAL_TOKEN);
|
---|
| 664 | if (!jsn->can_insert) {
|
---|
| 665 | INVOKE_ERROR(CANT_INSERT);
|
---|
| 666 | }
|
---|
| 667 |
|
---|
| 668 | ENSURE_HVAL;
|
---|
| 669 | state->nelem++;
|
---|
| 670 |
|
---|
| 671 | STACK_PUSH;
|
---|
| 672 | /* because the constants match the opening delimiters, we can do this: */
|
---|
| 673 | state->type = CUR_CHAR;
|
---|
| 674 | state->nelem = 0;
|
---|
| 675 | jsn->can_insert = 1;
|
---|
| 676 | if (CUR_CHAR == '{') {
|
---|
| 677 | /* If we're a hash, we expect a key first, which is quouted */
|
---|
| 678 | jsn->expecting = '"';
|
---|
| 679 | }
|
---|
| 680 | if (CUR_CHAR == JSONSL_T_OBJECT) {
|
---|
| 681 | DO_CALLBACK(OBJECT, PUSH);
|
---|
| 682 | } else {
|
---|
| 683 | DO_CALLBACK(LIST, PUSH);
|
---|
| 684 | }
|
---|
| 685 | jsn->tok_last = 0;
|
---|
| 686 | CONTINUE_NEXT_CHAR();
|
---|
| 687 |
|
---|
| 688 | /* closing of list or object */
|
---|
| 689 | case '}':
|
---|
| 690 | case ']':
|
---|
| 691 | INCR_METRIC(STRUCTURAL_TOKEN);
|
---|
| 692 | if (jsn->tok_last == ',' && jsn->options.allow_trailing_comma == 0) {
|
---|
| 693 | INVOKE_ERROR(TRAILING_COMMA);
|
---|
| 694 | }
|
---|
| 695 |
|
---|
| 696 | jsn->can_insert = 0;
|
---|
| 697 | jsn->level--;
|
---|
| 698 | jsn->expecting = ',';
|
---|
| 699 | jsn->tok_last = 0;
|
---|
| 700 | if (CUR_CHAR == ']') {
|
---|
| 701 | if (state->type != '[') {
|
---|
| 702 | INVOKE_ERROR(BRACKET_MISMATCH);
|
---|
| 703 | }
|
---|
| 704 | DO_CALLBACK(LIST, POP);
|
---|
| 705 | } else {
|
---|
| 706 | if (state->type != '{') {
|
---|
| 707 | INVOKE_ERROR(BRACKET_MISMATCH);
|
---|
| 708 | } else if (state->nelem && state->nelem % 2 != 0) {
|
---|
| 709 | INVOKE_ERROR(VALUE_EXPECTED);
|
---|
| 710 | }
|
---|
| 711 | DO_CALLBACK(OBJECT, POP);
|
---|
| 712 | }
|
---|
| 713 | state = jsn->stack + jsn->level;
|
---|
| 714 | state->pos_cur = jsn->pos;
|
---|
| 715 | CONTINUE_NEXT_CHAR();
|
---|
| 716 |
|
---|
| 717 | default:
|
---|
| 718 | GT_SPECIAL_BEGIN:
|
---|
| 719 | /**
|
---|
| 720 | * Not a string, not a structural token, and not benign whitespace.
|
---|
| 721 | * Technically we should iterate over the character always, but since
|
---|
| 722 | * we are not doing full numerical/value decoding anyway (but only hinting),
|
---|
| 723 | * we only check upon entry.
|
---|
| 724 | */
|
---|
| 725 | if (state->type != JSONSL_T_SPECIAL) {
|
---|
| 726 | int special_flags = extract_special(CUR_CHAR);
|
---|
| 727 | if (!special_flags) {
|
---|
| 728 | /**
|
---|
| 729 | * Try to do some heuristics here anyway to figure out what kind of
|
---|
| 730 | * error this is. The 'special' case is a fallback scenario anyway.
|
---|
| 731 | */
|
---|
| 732 | if (CUR_CHAR == '\0') {
|
---|
| 733 | INVOKE_ERROR(FOUND_NULL_BYTE);
|
---|
| 734 | } else if (CUR_CHAR < 0x20) {
|
---|
| 735 | INVOKE_ERROR(WEIRD_WHITESPACE);
|
---|
| 736 | } else {
|
---|
| 737 | INVOKE_ERROR(SPECIAL_EXPECTED);
|
---|
| 738 | }
|
---|
| 739 | }
|
---|
| 740 | ENSURE_HVAL;
|
---|
| 741 | state->nelem++;
|
---|
| 742 | if (!jsn->can_insert) {
|
---|
| 743 | INVOKE_ERROR(CANT_INSERT);
|
---|
| 744 | }
|
---|
| 745 | STACK_PUSH;
|
---|
| 746 | state->type = JSONSL_T_SPECIAL;
|
---|
| 747 | state->special_flags = special_flags;
|
---|
| 748 | STATE_SPECIAL_LENGTH = 1;
|
---|
| 749 |
|
---|
| 750 | if (special_flags == JSONSL_SPECIALf_UNSIGNED) {
|
---|
| 751 | state->nelem = CUR_CHAR - 0x30;
|
---|
| 752 | STATE_NUM_LAST = '1';
|
---|
| 753 | } else {
|
---|
| 754 | STATE_NUM_LAST = '-';
|
---|
| 755 | state->nelem = 0;
|
---|
| 756 | }
|
---|
| 757 | DO_CALLBACK(SPECIAL, PUSH);
|
---|
| 758 | }
|
---|
| 759 | CONTINUE_NEXT_CHAR();
|
---|
| 760 | }
|
---|
| 761 | }
|
---|
| 762 | }
|
---|
| 763 |
|
---|
| 764 | JSONSL_API
|
---|
| 765 | const char* jsonsl_strerror(jsonsl_error_t err)
|
---|
| 766 | {
|
---|
| 767 | if (err == JSONSL_ERROR_SUCCESS) {
|
---|
| 768 | return "SUCCESS";
|
---|
| 769 | }
|
---|
| 770 | #define X(t) \
|
---|
| 771 | if (err == JSONSL_ERROR_##t) \
|
---|
| 772 | return #t;
|
---|
| 773 | JSONSL_XERR;
|
---|
| 774 | #undef X
|
---|
| 775 | return "<UNKNOWN_ERROR>";
|
---|
| 776 | }
|
---|
| 777 |
|
---|
| 778 | JSONSL_API
|
---|
| 779 | const char *jsonsl_strtype(jsonsl_type_t type)
|
---|
| 780 | {
|
---|
| 781 | #define X(o,c) \
|
---|
| 782 | if (type == JSONSL_T_##o) \
|
---|
| 783 | return #o;
|
---|
| 784 | JSONSL_XTYPE
|
---|
| 785 | #undef X
|
---|
| 786 | return "UNKNOWN TYPE";
|
---|
| 787 |
|
---|
| 788 | }
|
---|
| 789 |
|
---|
| 790 | /*
|
---|
| 791 | *
|
---|
| 792 | * JPR/JSONPointer functions
|
---|
| 793 | *
|
---|
| 794 | *
|
---|
| 795 | */
|
---|
| 796 | #ifndef JSONSL_NO_JPR
|
---|
| 797 | static
|
---|
| 798 | jsonsl_jpr_type_t
|
---|
| 799 | populate_component(char *in,
|
---|
| 800 | struct jsonsl_jpr_component_st *component,
|
---|
| 801 | char **next,
|
---|
| 802 | jsonsl_error_t *errp)
|
---|
| 803 | {
|
---|
| 804 | unsigned long pctval;
|
---|
| 805 | char *c = NULL, *outp = NULL, *end = NULL;
|
---|
| 806 | size_t input_len;
|
---|
| 807 | jsonsl_jpr_type_t ret = JSONSL_PATH_NONE;
|
---|
| 808 |
|
---|
| 809 | if (*next == NULL || *(*next) == '\0') {
|
---|
| 810 | return JSONSL_PATH_NONE;
|
---|
| 811 | }
|
---|
| 812 |
|
---|
| 813 | /* Replace the next / with a NULL */
|
---|
| 814 | *next = strstr(in, "/");
|
---|
| 815 | if (*next != NULL) {
|
---|
| 816 | *(*next) = '\0'; /* drop the forward slash */
|
---|
| 817 | input_len = *next - in;
|
---|
| 818 | end = *next;
|
---|
| 819 | *next += 1; /* next character after the '/' */
|
---|
| 820 | } else {
|
---|
| 821 | input_len = strlen(in);
|
---|
| 822 | end = in + input_len + 1;
|
---|
| 823 | }
|
---|
| 824 |
|
---|
| 825 | component->pstr = in;
|
---|
| 826 |
|
---|
| 827 | /* Check for special components of interest */
|
---|
| 828 | if (*in == JSONSL_PATH_WILDCARD_CHAR && input_len == 1) {
|
---|
| 829 | /* Lone wildcard */
|
---|
| 830 | ret = JSONSL_PATH_WILDCARD;
|
---|
| 831 | goto GT_RET;
|
---|
| 832 | } else if (isdigit(*in)) {
|
---|
| 833 | /* ASCII Numeric */
|
---|
| 834 | char *endptr;
|
---|
| 835 | component->idx = strtoul(in, &endptr, 10);
|
---|
| 836 | if (endptr && *endptr == '\0') {
|
---|
| 837 | ret = JSONSL_PATH_NUMERIC;
|
---|
| 838 | goto GT_RET;
|
---|
| 839 | }
|
---|
| 840 | }
|
---|
| 841 |
|
---|
| 842 | /* Default, it's a string */
|
---|
| 843 | ret = JSONSL_PATH_STRING;
|
---|
| 844 | for (c = outp = in; c < end; c++, outp++) {
|
---|
| 845 | char origc;
|
---|
| 846 | if (*c != '%') {
|
---|
| 847 | goto GT_ASSIGN;
|
---|
| 848 | }
|
---|
| 849 | /*
|
---|
| 850 | * c = { [+0] = '%', [+1] = 'b', [+2] = 'e', [+3] = '\0' }
|
---|
| 851 | */
|
---|
| 852 |
|
---|
| 853 | /* Need %XX */
|
---|
| 854 | if (c+2 >= end) {
|
---|
| 855 | *errp = JSONSL_ERROR_PERCENT_BADHEX;
|
---|
| 856 | return JSONSL_PATH_INVALID;
|
---|
| 857 | }
|
---|
| 858 | if (! (isxdigit(*(c+1)) && isxdigit(*(c+2))) ) {
|
---|
| 859 | *errp = JSONSL_ERROR_PERCENT_BADHEX;
|
---|
| 860 | return JSONSL_PATH_INVALID;
|
---|
| 861 | }
|
---|
| 862 |
|
---|
| 863 | /* Temporarily null-terminate the characters */
|
---|
| 864 | origc = *(c+3);
|
---|
| 865 | *(c+3) = '\0';
|
---|
| 866 | pctval = strtoul(c+1, NULL, 16);
|
---|
| 867 | *(c+3) = origc;
|
---|
| 868 |
|
---|
| 869 | *outp = (char) pctval;
|
---|
| 870 | c += 2;
|
---|
| 871 | continue;
|
---|
| 872 |
|
---|
| 873 | GT_ASSIGN:
|
---|
| 874 | *outp = *c;
|
---|
| 875 | }
|
---|
| 876 | /* Null-terminate the string */
|
---|
| 877 | for (; outp < c; outp++) {
|
---|
| 878 | *outp = '\0';
|
---|
| 879 | }
|
---|
| 880 |
|
---|
| 881 | GT_RET:
|
---|
| 882 | component->ptype = ret;
|
---|
| 883 | if (ret != JSONSL_PATH_WILDCARD) {
|
---|
| 884 | component->len = strlen(component->pstr);
|
---|
| 885 | }
|
---|
| 886 | return ret;
|
---|
| 887 | }
|
---|
| 888 |
|
---|
| 889 | JSONSL_API
|
---|
| 890 | jsonsl_jpr_t
|
---|
| 891 | jsonsl_jpr_new(const char *path, jsonsl_error_t *errp)
|
---|
| 892 | {
|
---|
| 893 | char *my_copy = NULL;
|
---|
| 894 | int count, curidx;
|
---|
| 895 | struct jsonsl_jpr_st *ret = NULL;
|
---|
| 896 | struct jsonsl_jpr_component_st *components = NULL;
|
---|
| 897 | size_t origlen;
|
---|
| 898 | jsonsl_error_t errstacked;
|
---|
| 899 |
|
---|
| 900 | #define JPR_BAIL(err) *errp = err; goto GT_ERROR;
|
---|
| 901 |
|
---|
| 902 | if (errp == NULL) {
|
---|
| 903 | errp = &errstacked;
|
---|
| 904 | }
|
---|
| 905 |
|
---|
| 906 | if (path == NULL || *path != '/') {
|
---|
| 907 | JPR_BAIL(JSONSL_ERROR_JPR_NOROOT);
|
---|
| 908 | }
|
---|
| 909 |
|
---|
| 910 | count = 1;
|
---|
| 911 | path++;
|
---|
| 912 | {
|
---|
| 913 | const char *c = path;
|
---|
| 914 | for (; *c; c++) {
|
---|
| 915 | if (*c == '/') {
|
---|
| 916 | count++;
|
---|
| 917 | if (*(c+1) == '/') {
|
---|
| 918 | JPR_BAIL(JSONSL_ERROR_JPR_DUPSLASH);
|
---|
| 919 | }
|
---|
| 920 | }
|
---|
| 921 | }
|
---|
| 922 | }
|
---|
| 923 | if(*path) {
|
---|
| 924 | count++;
|
---|
| 925 | }
|
---|
| 926 |
|
---|
| 927 | components = (struct jsonsl_jpr_component_st *)
|
---|
| 928 | malloc(sizeof(*components) * count);
|
---|
| 929 | if (!components) {
|
---|
| 930 | JPR_BAIL(JSONSL_ERROR_ENOMEM);
|
---|
| 931 | }
|
---|
| 932 |
|
---|
| 933 | my_copy = (char *)malloc(strlen(path) + 1);
|
---|
| 934 | if (!my_copy) {
|
---|
| 935 | JPR_BAIL(JSONSL_ERROR_ENOMEM);
|
---|
| 936 | }
|
---|
| 937 |
|
---|
| 938 | strcpy(my_copy, path);
|
---|
| 939 |
|
---|
| 940 | components[0].ptype = JSONSL_PATH_ROOT;
|
---|
| 941 |
|
---|
| 942 | if (*my_copy) {
|
---|
| 943 | char *cur = my_copy;
|
---|
| 944 | int pathret = JSONSL_PATH_STRING;
|
---|
| 945 | curidx = 1;
|
---|
| 946 | while (curidx < count) {
|
---|
| 947 | pathret = populate_component(cur, components + curidx, &cur, errp);
|
---|
| 948 | if (pathret > 0) {
|
---|
| 949 | curidx++;
|
---|
| 950 | } else {
|
---|
| 951 | break;
|
---|
| 952 | }
|
---|
| 953 | }
|
---|
| 954 |
|
---|
| 955 | if (pathret == JSONSL_PATH_INVALID) {
|
---|
| 956 | JPR_BAIL(JSONSL_ERROR_JPR_BADPATH);
|
---|
| 957 | }
|
---|
| 958 | } else {
|
---|
| 959 | curidx = 1;
|
---|
| 960 | }
|
---|
| 961 |
|
---|
| 962 | path--; /*revert path to leading '/' */
|
---|
| 963 | origlen = strlen(path) + 1;
|
---|
| 964 | ret = (struct jsonsl_jpr_st *)malloc(sizeof(*ret));
|
---|
| 965 | if (!ret) {
|
---|
| 966 | JPR_BAIL(JSONSL_ERROR_ENOMEM);
|
---|
| 967 | }
|
---|
| 968 | ret->orig = (char *)malloc(origlen);
|
---|
| 969 | if (!ret->orig) {
|
---|
| 970 | JPR_BAIL(JSONSL_ERROR_ENOMEM);
|
---|
| 971 | }
|
---|
| 972 | ret->components = components;
|
---|
| 973 | ret->ncomponents = curidx;
|
---|
| 974 | ret->basestr = my_copy;
|
---|
| 975 | ret->norig = origlen-1;
|
---|
| 976 | strcpy(ret->orig, path);
|
---|
| 977 |
|
---|
| 978 | return ret;
|
---|
| 979 |
|
---|
| 980 | GT_ERROR:
|
---|
| 981 | free(my_copy);
|
---|
| 982 | free(components);
|
---|
| 983 | if (ret) {
|
---|
| 984 | free(ret->orig);
|
---|
| 985 | }
|
---|
| 986 | free(ret);
|
---|
| 987 | return NULL;
|
---|
| 988 | #undef JPR_BAIL
|
---|
| 989 | }
|
---|
| 990 |
|
---|
| 991 | void jsonsl_jpr_destroy(jsonsl_jpr_t jpr)
|
---|
| 992 | {
|
---|
| 993 | free(jpr->components);
|
---|
| 994 | free(jpr->basestr);
|
---|
| 995 | free(jpr->orig);
|
---|
| 996 | free(jpr);
|
---|
| 997 | }
|
---|
| 998 |
|
---|
| 999 | /**
|
---|
| 1000 | * Call when there is a possibility of a match, either as a final match or
|
---|
| 1001 | * as a path within a match
|
---|
| 1002 | * @param jpr The JPR path
|
---|
| 1003 | * @param component Component corresponding to the current element
|
---|
| 1004 | * @param prlevel The level of the *parent*
|
---|
| 1005 | * @param chtype The type of the child
|
---|
| 1006 | * @return Match status
|
---|
| 1007 | */
|
---|
| 1008 | static jsonsl_jpr_match_t
|
---|
| 1009 | jsonsl__match_continue(jsonsl_jpr_t jpr,
|
---|
| 1010 | const struct jsonsl_jpr_component_st *component,
|
---|
| 1011 | unsigned prlevel, unsigned chtype)
|
---|
| 1012 | {
|
---|
| 1013 | const struct jsonsl_jpr_component_st *next_comp = component + 1;
|
---|
| 1014 | if (prlevel == jpr->ncomponents - 1) {
|
---|
| 1015 | /* This is the match. Check the expected type of the match against
|
---|
| 1016 | * the child */
|
---|
| 1017 | if (jpr->match_type == 0 || jpr->match_type == chtype) {
|
---|
| 1018 | return JSONSL_MATCH_COMPLETE;
|
---|
| 1019 | } else {
|
---|
| 1020 | return JSONSL_MATCH_TYPE_MISMATCH;
|
---|
| 1021 | }
|
---|
| 1022 | }
|
---|
| 1023 | if (chtype == JSONSL_T_LIST) {
|
---|
| 1024 | if (next_comp->ptype == JSONSL_PATH_NUMERIC) {
|
---|
| 1025 | return JSONSL_MATCH_POSSIBLE;
|
---|
| 1026 | } else {
|
---|
| 1027 | return JSONSL_MATCH_TYPE_MISMATCH;
|
---|
| 1028 | }
|
---|
| 1029 | } else if (chtype == JSONSL_T_OBJECT) {
|
---|
| 1030 | if (next_comp->ptype == JSONSL_PATH_NUMERIC) {
|
---|
| 1031 | return JSONSL_MATCH_TYPE_MISMATCH;
|
---|
| 1032 | } else {
|
---|
| 1033 | return JSONSL_MATCH_POSSIBLE;
|
---|
| 1034 | }
|
---|
| 1035 | } else {
|
---|
| 1036 | return JSONSL_MATCH_TYPE_MISMATCH;
|
---|
| 1037 | }
|
---|
| 1038 | }
|
---|
| 1039 |
|
---|
| 1040 | JSONSL_API
|
---|
| 1041 | jsonsl_jpr_match_t
|
---|
| 1042 | jsonsl_path_match(jsonsl_jpr_t jpr,
|
---|
| 1043 | const struct jsonsl_state_st *parent,
|
---|
| 1044 | const struct jsonsl_state_st *child,
|
---|
| 1045 | const char *key, size_t nkey)
|
---|
| 1046 | {
|
---|
| 1047 | const struct jsonsl_jpr_component_st *comp;
|
---|
| 1048 | if (!parent) {
|
---|
| 1049 | /* No parent. Return immediately since it's always a match */
|
---|
| 1050 | return jsonsl__match_continue(jpr, jpr->components, 0, child->type);
|
---|
| 1051 | }
|
---|
| 1052 |
|
---|
| 1053 | comp = jpr->components + parent->level;
|
---|
| 1054 |
|
---|
| 1055 | /* note that we don't need to verify the type of the match, this is
|
---|
| 1056 | * always done through the previous call to jsonsl__match_continue.
|
---|
| 1057 | * If we are in a POSSIBLE tree then we can be certain the types (at
|
---|
| 1058 | * least at this level) are correct */
|
---|
| 1059 | if (parent->type == JSONSL_T_OBJECT) {
|
---|
| 1060 | if (comp->len != nkey || strncmp(key, comp->pstr, nkey) != 0) {
|
---|
| 1061 | return JSONSL_MATCH_NOMATCH;
|
---|
| 1062 | }
|
---|
| 1063 | } else {
|
---|
| 1064 | if (comp->idx != parent->nelem - 1) {
|
---|
| 1065 | return JSONSL_MATCH_NOMATCH;
|
---|
| 1066 | }
|
---|
| 1067 | }
|
---|
| 1068 | return jsonsl__match_continue(jpr, comp, parent->level, child->type);
|
---|
| 1069 | }
|
---|
| 1070 |
|
---|
| 1071 | JSONSL_API
|
---|
| 1072 | jsonsl_jpr_match_t
|
---|
| 1073 | jsonsl_jpr_match(jsonsl_jpr_t jpr,
|
---|
| 1074 | unsigned int parent_type,
|
---|
| 1075 | unsigned int parent_level,
|
---|
| 1076 | const char *key,
|
---|
| 1077 | size_t nkey)
|
---|
| 1078 | {
|
---|
| 1079 | /* find our current component. This is the child level */
|
---|
| 1080 | int cmpret;
|
---|
| 1081 | struct jsonsl_jpr_component_st *p_component;
|
---|
| 1082 | p_component = jpr->components + parent_level;
|
---|
| 1083 |
|
---|
| 1084 | if (parent_level >= jpr->ncomponents) {
|
---|
| 1085 | return JSONSL_MATCH_NOMATCH;
|
---|
| 1086 | }
|
---|
| 1087 |
|
---|
| 1088 | /* Lone query for 'root' element. Always matches */
|
---|
| 1089 | if (parent_level == 0) {
|
---|
| 1090 | if (jpr->ncomponents == 1) {
|
---|
| 1091 | return JSONSL_MATCH_COMPLETE;
|
---|
| 1092 | } else {
|
---|
| 1093 | return JSONSL_MATCH_POSSIBLE;
|
---|
| 1094 | }
|
---|
| 1095 | }
|
---|
| 1096 |
|
---|
| 1097 | /* Wildcard, always matches */
|
---|
| 1098 | if (p_component->ptype == JSONSL_PATH_WILDCARD) {
|
---|
| 1099 | if (parent_level == jpr->ncomponents-1) {
|
---|
| 1100 | return JSONSL_MATCH_COMPLETE;
|
---|
| 1101 | } else {
|
---|
| 1102 | return JSONSL_MATCH_POSSIBLE;
|
---|
| 1103 | }
|
---|
| 1104 | }
|
---|
| 1105 |
|
---|
| 1106 | /* Check numeric array index. This gets its special block so we can avoid
|
---|
| 1107 | * string comparisons */
|
---|
| 1108 | if (p_component->ptype == JSONSL_PATH_NUMERIC) {
|
---|
| 1109 | if (parent_type == JSONSL_T_LIST) {
|
---|
| 1110 | if (p_component->idx != nkey) {
|
---|
| 1111 | /* Wrong index */
|
---|
| 1112 | return JSONSL_MATCH_NOMATCH;
|
---|
| 1113 | } else {
|
---|
| 1114 | if (parent_level == jpr->ncomponents-1) {
|
---|
| 1115 | /* This is the last element of the path */
|
---|
| 1116 | return JSONSL_MATCH_COMPLETE;
|
---|
| 1117 | } else {
|
---|
| 1118 | /* Intermediate element */
|
---|
| 1119 | return JSONSL_MATCH_POSSIBLE;
|
---|
| 1120 | }
|
---|
| 1121 | }
|
---|
| 1122 | } else if (p_component->is_arridx) {
|
---|
| 1123 | /* Numeric and an array index (set explicitly by user). But not
|
---|
| 1124 | * a list for a parent */
|
---|
| 1125 | return JSONSL_MATCH_TYPE_MISMATCH;
|
---|
| 1126 | }
|
---|
| 1127 | } else if (parent_type == JSONSL_T_LIST) {
|
---|
| 1128 | return JSONSL_MATCH_TYPE_MISMATCH;
|
---|
| 1129 | }
|
---|
| 1130 |
|
---|
| 1131 | /* Check lengths */
|
---|
| 1132 | if (p_component->len != nkey) {
|
---|
| 1133 | return JSONSL_MATCH_NOMATCH;
|
---|
| 1134 | }
|
---|
| 1135 |
|
---|
| 1136 | /* Check string comparison */
|
---|
| 1137 | cmpret = strncmp(p_component->pstr, key, nkey);
|
---|
| 1138 | if (cmpret == 0) {
|
---|
| 1139 | if (parent_level == jpr->ncomponents-1) {
|
---|
| 1140 | return JSONSL_MATCH_COMPLETE;
|
---|
| 1141 | } else {
|
---|
| 1142 | return JSONSL_MATCH_POSSIBLE;
|
---|
| 1143 | }
|
---|
| 1144 | }
|
---|
| 1145 |
|
---|
| 1146 | return JSONSL_MATCH_NOMATCH;
|
---|
| 1147 | }
|
---|
| 1148 |
|
---|
| 1149 | JSONSL_API
|
---|
| 1150 | void jsonsl_jpr_match_state_init(jsonsl_t jsn,
|
---|
| 1151 | jsonsl_jpr_t *jprs,
|
---|
| 1152 | size_t njprs)
|
---|
| 1153 | {
|
---|
| 1154 | size_t ii, *firstjmp;
|
---|
| 1155 | if (njprs == 0) {
|
---|
| 1156 | return;
|
---|
| 1157 | }
|
---|
| 1158 | jsn->jprs = (jsonsl_jpr_t *)malloc(sizeof(jsonsl_jpr_t) * njprs);
|
---|
| 1159 | jsn->jpr_count = njprs;
|
---|
| 1160 | jsn->jpr_root = (size_t*)calloc(1, sizeof(size_t) * njprs * jsn->levels_max);
|
---|
| 1161 | memcpy(jsn->jprs, jprs, sizeof(jsonsl_jpr_t) * njprs);
|
---|
| 1162 | /* Set the initial jump table values */
|
---|
| 1163 |
|
---|
| 1164 | firstjmp = jsn->jpr_root;
|
---|
| 1165 | for (ii = 0; ii < njprs; ii++) {
|
---|
| 1166 | firstjmp[ii] = ii+1;
|
---|
| 1167 | }
|
---|
| 1168 | }
|
---|
| 1169 |
|
---|
| 1170 | JSONSL_API
|
---|
| 1171 | void jsonsl_jpr_match_state_cleanup(jsonsl_t jsn)
|
---|
| 1172 | {
|
---|
| 1173 | if (jsn->jpr_count == 0) {
|
---|
| 1174 | return;
|
---|
| 1175 | }
|
---|
| 1176 |
|
---|
| 1177 | free(jsn->jpr_root);
|
---|
| 1178 | free(jsn->jprs);
|
---|
| 1179 | jsn->jprs = NULL;
|
---|
| 1180 | jsn->jpr_root = NULL;
|
---|
| 1181 | jsn->jpr_count = 0;
|
---|
| 1182 | }
|
---|
| 1183 |
|
---|
| 1184 | /**
|
---|
| 1185 | * This function should be called exactly once on each element...
|
---|
| 1186 | * This should also be called in recursive order, since we rely
|
---|
| 1187 | * on the parent having been initalized for a match.
|
---|
| 1188 | *
|
---|
| 1189 | * Since the parent is checked for a match as well, we maintain a 'serial' counter.
|
---|
| 1190 | * Whenever we traverse an element, we expect the serial to be the same as a global
|
---|
| 1191 | * integer. If they do not match, we re-initialize the context, and set the serial.
|
---|
| 1192 | *
|
---|
| 1193 | * This ensures a type of consistency without having a proactive reset by the
|
---|
| 1194 | * main lexer itself.
|
---|
| 1195 | *
|
---|
| 1196 | */
|
---|
| 1197 | JSONSL_API
|
---|
| 1198 | jsonsl_jpr_t jsonsl_jpr_match_state(jsonsl_t jsn,
|
---|
| 1199 | struct jsonsl_state_st *state,
|
---|
| 1200 | const char *key,
|
---|
| 1201 | size_t nkey,
|
---|
| 1202 | jsonsl_jpr_match_t *out)
|
---|
| 1203 | {
|
---|
| 1204 | struct jsonsl_state_st *parent_state;
|
---|
| 1205 | jsonsl_jpr_t ret = NULL;
|
---|
| 1206 |
|
---|
| 1207 | /* Jump and JPR tables for our own state and the parent state */
|
---|
| 1208 | size_t *jmptable, *pjmptable;
|
---|
| 1209 | size_t jmp_cur, ii, ourjmpidx;
|
---|
| 1210 |
|
---|
| 1211 | if (!jsn->jpr_root) {
|
---|
| 1212 | *out = JSONSL_MATCH_NOMATCH;
|
---|
| 1213 | return NULL;
|
---|
| 1214 | }
|
---|
| 1215 |
|
---|
| 1216 | pjmptable = jsn->jpr_root + (jsn->jpr_count * (state->level-1));
|
---|
| 1217 | jmptable = pjmptable + jsn->jpr_count;
|
---|
| 1218 |
|
---|
| 1219 | /* If the parent cannot match, then invalidate it */
|
---|
| 1220 | if (*pjmptable == 0) {
|
---|
| 1221 | *jmptable = 0;
|
---|
| 1222 | *out = JSONSL_MATCH_NOMATCH;
|
---|
| 1223 | return NULL;
|
---|
| 1224 | }
|
---|
| 1225 |
|
---|
| 1226 | parent_state = jsn->stack + state->level - 1;
|
---|
| 1227 |
|
---|
| 1228 | if (parent_state->type == JSONSL_T_LIST) {
|
---|
| 1229 | nkey = (size_t) parent_state->nelem;
|
---|
| 1230 | }
|
---|
| 1231 |
|
---|
| 1232 | *jmptable = 0;
|
---|
| 1233 | ourjmpidx = 0;
|
---|
| 1234 | memset(jmptable, 0, sizeof(int) * jsn->jpr_count);
|
---|
| 1235 |
|
---|
| 1236 | for (ii = 0; ii < jsn->jpr_count; ii++) {
|
---|
| 1237 | jmp_cur = pjmptable[ii];
|
---|
| 1238 | if (jmp_cur) {
|
---|
| 1239 | jsonsl_jpr_t jpr = jsn->jprs[jmp_cur-1];
|
---|
| 1240 | *out = jsonsl_jpr_match(jpr,
|
---|
| 1241 | parent_state->type,
|
---|
| 1242 | parent_state->level,
|
---|
| 1243 | key, nkey);
|
---|
| 1244 | if (*out == JSONSL_MATCH_COMPLETE) {
|
---|
| 1245 | ret = jpr;
|
---|
| 1246 | *jmptable = 0;
|
---|
| 1247 | return ret;
|
---|
| 1248 | } else if (*out == JSONSL_MATCH_POSSIBLE) {
|
---|
| 1249 | jmptable[ourjmpidx] = ii+1;
|
---|
| 1250 | ourjmpidx++;
|
---|
| 1251 | }
|
---|
| 1252 | } else {
|
---|
| 1253 | break;
|
---|
| 1254 | }
|
---|
| 1255 | }
|
---|
| 1256 | if (!*jmptable) {
|
---|
| 1257 | *out = JSONSL_MATCH_NOMATCH;
|
---|
| 1258 | }
|
---|
| 1259 | return NULL;
|
---|
| 1260 | }
|
---|
| 1261 |
|
---|
| 1262 | JSONSL_API
|
---|
| 1263 | const char *jsonsl_strmatchtype(jsonsl_jpr_match_t match)
|
---|
| 1264 | {
|
---|
| 1265 | #define X(T,v) \
|
---|
| 1266 | if ( match == JSONSL_MATCH_##T ) \
|
---|
| 1267 | return #T;
|
---|
| 1268 | JSONSL_XMATCH
|
---|
| 1269 | #undef X
|
---|
| 1270 | return "<UNKNOWN>";
|
---|
| 1271 | }
|
---|
| 1272 |
|
---|
| 1273 | #endif /* JSONSL_WITH_JPR */
|
---|
| 1274 |
|
---|
| 1275 | static char *
|
---|
| 1276 | jsonsl__writeutf8(uint32_t pt, char *out)
|
---|
| 1277 | {
|
---|
| 1278 | #define ADD_OUTPUT(c) *out = (char)(c); out++;
|
---|
| 1279 |
|
---|
| 1280 | if (pt < 0x80) {
|
---|
| 1281 | ADD_OUTPUT(pt);
|
---|
| 1282 | } else if (pt < 0x800) {
|
---|
| 1283 | ADD_OUTPUT((pt >> 6) | 0xC0);
|
---|
| 1284 | ADD_OUTPUT((pt & 0x3F) | 0x80);
|
---|
| 1285 | } else if (pt < 0x10000) {
|
---|
| 1286 | ADD_OUTPUT((pt >> 12) | 0xE0);
|
---|
| 1287 | ADD_OUTPUT(((pt >> 6) & 0x3F) | 0x80);
|
---|
| 1288 | ADD_OUTPUT((pt & 0x3F) | 0x80);
|
---|
| 1289 | } else {
|
---|
| 1290 | ADD_OUTPUT((pt >> 18) | 0xF0);
|
---|
| 1291 | ADD_OUTPUT(((pt >> 12) & 0x3F) | 0x80);
|
---|
| 1292 | ADD_OUTPUT(((pt >> 6) & 0x3F) | 0x80);
|
---|
| 1293 | ADD_OUTPUT((pt & 0x3F) | 0x80);
|
---|
| 1294 | }
|
---|
| 1295 | return out;
|
---|
| 1296 | #undef ADD_OUTPUT
|
---|
| 1297 | }
|
---|
| 1298 |
|
---|
| 1299 | /* Thanks snej (https://github.com/mnunberg/jsonsl/issues/9) */
|
---|
| 1300 | static int
|
---|
| 1301 | jsonsl__digit2int(char ch) {
|
---|
| 1302 | int d = ch - '0';
|
---|
| 1303 | if ((unsigned) d < 10) {
|
---|
| 1304 | return d;
|
---|
| 1305 | }
|
---|
| 1306 | d = ch - 'a';
|
---|
| 1307 | if ((unsigned) d < 6) {
|
---|
| 1308 | return d + 10;
|
---|
| 1309 | }
|
---|
| 1310 | d = ch - 'A';
|
---|
| 1311 | if ((unsigned) d < 6) {
|
---|
| 1312 | return d + 10;
|
---|
| 1313 | }
|
---|
| 1314 | return -1;
|
---|
| 1315 | }
|
---|
| 1316 |
|
---|
| 1317 | /* Assume 's' is at least 4 bytes long */
|
---|
| 1318 | static int
|
---|
| 1319 | jsonsl__get_uescape_16(const char *s)
|
---|
| 1320 | {
|
---|
| 1321 | int ret = 0;
|
---|
| 1322 | int cur;
|
---|
| 1323 |
|
---|
| 1324 | #define GET_DIGIT(off) \
|
---|
| 1325 | cur = jsonsl__digit2int(s[off]); \
|
---|
| 1326 | if (cur == -1) { return -1; } \
|
---|
| 1327 | ret |= (cur << (12 - (off * 4)));
|
---|
| 1328 |
|
---|
| 1329 | GET_DIGIT(0);
|
---|
| 1330 | GET_DIGIT(1);
|
---|
| 1331 | GET_DIGIT(2);
|
---|
| 1332 | GET_DIGIT(3);
|
---|
| 1333 | #undef GET_DIGIT
|
---|
| 1334 | return ret;
|
---|
| 1335 | }
|
---|
| 1336 |
|
---|
| 1337 | /**
|
---|
| 1338 | * Utility function to convert escape sequences
|
---|
| 1339 | */
|
---|
| 1340 | JSONSL_API
|
---|
| 1341 | size_t jsonsl_util_unescape_ex(const char *in,
|
---|
| 1342 | char *out,
|
---|
| 1343 | size_t len,
|
---|
| 1344 | const int toEscape[128],
|
---|
| 1345 | unsigned *oflags,
|
---|
| 1346 | jsonsl_error_t *err,
|
---|
| 1347 | const char **errat)
|
---|
| 1348 | {
|
---|
| 1349 | const unsigned char *c = (const unsigned char*)in;
|
---|
| 1350 | char *begin_p = out;
|
---|
| 1351 | unsigned oflags_s;
|
---|
| 1352 | uint16_t last_codepoint = 0;
|
---|
| 1353 |
|
---|
| 1354 | if (!oflags) {
|
---|
| 1355 | oflags = &oflags_s;
|
---|
| 1356 | }
|
---|
| 1357 | *oflags = 0;
|
---|
| 1358 |
|
---|
| 1359 | #define UNESCAPE_BAIL(e,offset) \
|
---|
| 1360 | *err = JSONSL_ERROR_##e; \
|
---|
| 1361 | if (errat) { \
|
---|
| 1362 | *errat = (const char*)(c+ (ptrdiff_t)(offset)); \
|
---|
| 1363 | } \
|
---|
| 1364 | return 0;
|
---|
| 1365 |
|
---|
| 1366 | for (; len; len--, c++, out++) {
|
---|
| 1367 | int uescval;
|
---|
| 1368 | if (*c != '\\') {
|
---|
| 1369 | /* Not an escape, so we don't care about this */
|
---|
| 1370 | goto GT_ASSIGN;
|
---|
| 1371 | }
|
---|
| 1372 |
|
---|
| 1373 | if (len < 2) {
|
---|
| 1374 | UNESCAPE_BAIL(ESCAPE_INVALID, 0);
|
---|
| 1375 | }
|
---|
| 1376 | if (!is_allowed_escape(c[1])) {
|
---|
| 1377 | UNESCAPE_BAIL(ESCAPE_INVALID, 1)
|
---|
| 1378 | }
|
---|
| 1379 | if ((toEscape && toEscape[(unsigned char)c[1] & 0x7f] == 0 &&
|
---|
| 1380 | c[1] != '\\' && c[1] != '"')) {
|
---|
| 1381 | /* if we don't want to unescape this string, write the escape sequence to the output */
|
---|
| 1382 | *out++ = *c++;
|
---|
| 1383 | --len;
|
---|
| 1384 | goto GT_ASSIGN;
|
---|
| 1385 | }
|
---|
| 1386 |
|
---|
| 1387 | if (c[1] != 'u') {
|
---|
| 1388 | /* simple skip-and-replace using pre-defined maps.
|
---|
| 1389 | * TODO: should the maps actually reflect the desired
|
---|
| 1390 | * replacement character in toEscape?
|
---|
| 1391 | */
|
---|
| 1392 | char esctmp = get_escape_equiv(c[1]);
|
---|
| 1393 | if (esctmp) {
|
---|
| 1394 | /* Check if there is a corresponding replacement */
|
---|
| 1395 | *out = esctmp;
|
---|
| 1396 | } else {
|
---|
| 1397 | /* Just gobble up the 'reverse-solidus' */
|
---|
| 1398 | *out = c[1];
|
---|
| 1399 | }
|
---|
| 1400 | len--;
|
---|
| 1401 | c++;
|
---|
| 1402 | /* do not assign, just continue */
|
---|
| 1403 | continue;
|
---|
| 1404 | }
|
---|
| 1405 |
|
---|
| 1406 | /* next == 'u' */
|
---|
| 1407 | if (len < 6) {
|
---|
| 1408 | /* Need at least six characters.. */
|
---|
| 1409 | UNESCAPE_BAIL(UESCAPE_TOOSHORT, 2);
|
---|
| 1410 | }
|
---|
| 1411 |
|
---|
| 1412 | uescval = jsonsl__get_uescape_16((const char *)c + 2);
|
---|
| 1413 | if (uescval == -1) {
|
---|
| 1414 | UNESCAPE_BAIL(PERCENT_BADHEX, -1);
|
---|
| 1415 | }
|
---|
| 1416 |
|
---|
| 1417 | if (last_codepoint) {
|
---|
| 1418 | uint16_t w1 = last_codepoint, w2 = (uint16_t)uescval;
|
---|
| 1419 | uint32_t cp;
|
---|
| 1420 |
|
---|
| 1421 | if (uescval < 0xDC00 || uescval > 0xDFFF) {
|
---|
| 1422 | UNESCAPE_BAIL(INVALID_CODEPOINT, -1);
|
---|
| 1423 | }
|
---|
| 1424 |
|
---|
| 1425 | cp = (w1 & 0x3FF) << 10;
|
---|
| 1426 | cp |= (w2 & 0x3FF);
|
---|
| 1427 | cp += 0x10000;
|
---|
| 1428 |
|
---|
| 1429 | out = jsonsl__writeutf8(cp, out) - 1;
|
---|
| 1430 | last_codepoint = 0;
|
---|
| 1431 |
|
---|
| 1432 | } else if (uescval < 0xD800 || uescval > 0xDFFF) {
|
---|
| 1433 | *oflags |= JSONSL_SPECIALf_NONASCII;
|
---|
| 1434 | out = jsonsl__writeutf8(uescval, out) - 1;
|
---|
| 1435 |
|
---|
| 1436 | } else if (uescval < 0xDC00) {
|
---|
| 1437 | *oflags |= JSONSL_SPECIALf_NONASCII;
|
---|
| 1438 | last_codepoint = (uint16_t)uescval;
|
---|
| 1439 | out--;
|
---|
| 1440 | } else {
|
---|
| 1441 | UNESCAPE_BAIL(INVALID_CODEPOINT, 2);
|
---|
| 1442 | }
|
---|
| 1443 |
|
---|
| 1444 | /* Post uescape cleanup */
|
---|
| 1445 | len -= 5; /* Gobble up 5 chars after 'u' */
|
---|
| 1446 | c += 5;
|
---|
| 1447 | continue;
|
---|
| 1448 |
|
---|
| 1449 | /* Only reached by previous branches */
|
---|
| 1450 | GT_ASSIGN:
|
---|
| 1451 | *out = *c;
|
---|
| 1452 | }
|
---|
| 1453 |
|
---|
| 1454 | if (last_codepoint) {
|
---|
| 1455 | *err = JSONSL_ERROR_INVALID_CODEPOINT;
|
---|
| 1456 | return 0;
|
---|
| 1457 | }
|
---|
| 1458 |
|
---|
| 1459 | *err = JSONSL_ERROR_SUCCESS;
|
---|
| 1460 | return out - begin_p;
|
---|
| 1461 | }
|
---|
| 1462 |
|
---|
| 1463 | /**
|
---|
| 1464 | * Character Table definitions.
|
---|
| 1465 | * These were all generated via srcutil/genchartables.pl
|
---|
| 1466 | */
|
---|
| 1467 |
|
---|
| 1468 | /**
|
---|
| 1469 | * This table contains the beginnings of non-string
|
---|
| 1470 | * allowable (bareword) values.
|
---|
| 1471 | */
|
---|
| 1472 | static unsigned short Special_Table[0x100] = {
|
---|
| 1473 | /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1f */
|
---|
| 1474 | /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2c */
|
---|
| 1475 | /* 0x2d */ JSONSL_SPECIALf_DASH /* <-> */, /* 0x2d */
|
---|
| 1476 | /* 0x2e */ 0,0, /* 0x2f */
|
---|
| 1477 | /* 0x30 */ JSONSL_SPECIALf_ZERO /* <0> */, /* 0x30 */
|
---|
| 1478 | /* 0x31 */ JSONSL_SPECIALf_UNSIGNED /* <1> */, /* 0x31 */
|
---|
| 1479 | /* 0x32 */ JSONSL_SPECIALf_UNSIGNED /* <2> */, /* 0x32 */
|
---|
| 1480 | /* 0x33 */ JSONSL_SPECIALf_UNSIGNED /* <3> */, /* 0x33 */
|
---|
| 1481 | /* 0x34 */ JSONSL_SPECIALf_UNSIGNED /* <4> */, /* 0x34 */
|
---|
| 1482 | /* 0x35 */ JSONSL_SPECIALf_UNSIGNED /* <5> */, /* 0x35 */
|
---|
| 1483 | /* 0x36 */ JSONSL_SPECIALf_UNSIGNED /* <6> */, /* 0x36 */
|
---|
| 1484 | /* 0x37 */ JSONSL_SPECIALf_UNSIGNED /* <7> */, /* 0x37 */
|
---|
| 1485 | /* 0x38 */ JSONSL_SPECIALf_UNSIGNED /* <8> */, /* 0x38 */
|
---|
| 1486 | /* 0x39 */ JSONSL_SPECIALf_UNSIGNED /* <9> */, /* 0x39 */
|
---|
| 1487 | /* 0x3a */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x48 */
|
---|
| 1488 | /* 0x49 */ JSONSL__INF_PROXY /* <I> */, /* 0x49 */
|
---|
| 1489 | /* 0x4a */ 0,0,0,0, /* 0x4d */
|
---|
| 1490 | /* 0x4e */ JSONSL__NAN_PROXY /* <N> */, /* 0x4e */
|
---|
| 1491 | /* 0x4f */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x65 */
|
---|
| 1492 | /* 0x66 */ JSONSL_SPECIALf_FALSE /* <f> */, /* 0x66 */
|
---|
| 1493 | /* 0x67 */ 0,0, /* 0x68 */
|
---|
| 1494 | /* 0x69 */ JSONSL__INF_PROXY /* <i> */, /* 0x69 */
|
---|
| 1495 | /* 0x6a */ 0,0,0,0, /* 0x6d */
|
---|
| 1496 | /* 0x6e */ JSONSL_SPECIALf_NULL|JSONSL__NAN_PROXY /* <n> */, /* 0x6e */
|
---|
| 1497 | /* 0x6f */ 0,0,0,0,0, /* 0x73 */
|
---|
| 1498 | /* 0x74 */ JSONSL_SPECIALf_TRUE /* <t> */, /* 0x74 */
|
---|
| 1499 | /* 0x75 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x94 */
|
---|
| 1500 | /* 0x95 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xb4 */
|
---|
| 1501 | /* 0xb5 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xd4 */
|
---|
| 1502 | /* 0xd5 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xf4 */
|
---|
| 1503 | /* 0xf5 */ 0,0,0,0,0,0,0,0,0,0, /* 0xfe */
|
---|
| 1504 | };
|
---|
| 1505 |
|
---|
| 1506 | /**
|
---|
| 1507 | * Contains characters which signal the termination of any of the 'special' bareword
|
---|
| 1508 | * values.
|
---|
| 1509 | */
|
---|
| 1510 | static int Special_Endings[0x100] = {
|
---|
| 1511 | /* 0x00 */ 0,0,0,0,0,0,0,0,0, /* 0x08 */
|
---|
| 1512 | /* 0x09 */ 1 /* <TAB> */, /* 0x09 */
|
---|
| 1513 | /* 0x0a */ 1 /* <LF> */, /* 0x0a */
|
---|
| 1514 | /* 0x0b */ 0,0, /* 0x0c */
|
---|
| 1515 | /* 0x0d */ 1 /* <CR> */, /* 0x0d */
|
---|
| 1516 | /* 0x0e */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1f */
|
---|
| 1517 | /* 0x20 */ 1 /* <SP> */, /* 0x20 */
|
---|
| 1518 | /* 0x21 */ 0, /* 0x21 */
|
---|
| 1519 | /* 0x22 */ 1 /* " */, /* 0x22 */
|
---|
| 1520 | /* 0x23 */ 0,0,0,0,0,0,0,0,0, /* 0x2b */
|
---|
| 1521 | /* 0x2c */ 1 /* , */, /* 0x2c */
|
---|
| 1522 | /* 0x2d */ 0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x39 */
|
---|
| 1523 | /* 0x3a */ 1 /* : */, /* 0x3a */
|
---|
| 1524 | /* 0x3b */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x5a */
|
---|
| 1525 | /* 0x5b */ 1 /* [ */, /* 0x5b */
|
---|
| 1526 | /* 0x5c */ 1 /* \ */, /* 0x5c */
|
---|
| 1527 | /* 0x5d */ 1 /* ] */, /* 0x5d */
|
---|
| 1528 | /* 0x5e */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x7a */
|
---|
| 1529 | /* 0x7b */ 1 /* { */, /* 0x7b */
|
---|
| 1530 | /* 0x7c */ 0, /* 0x7c */
|
---|
| 1531 | /* 0x7d */ 1 /* } */, /* 0x7d */
|
---|
| 1532 | /* 0x7e */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9d */
|
---|
| 1533 | /* 0x9e */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xbd */
|
---|
| 1534 | /* 0xbe */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xdd */
|
---|
| 1535 | /* 0xde */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xfd */
|
---|
| 1536 | /* 0xfe */ 0 /* 0xfe */
|
---|
| 1537 | };
|
---|
| 1538 |
|
---|
| 1539 | /**
|
---|
| 1540 | * This table contains entries for the allowed whitespace as per RFC 4627
|
---|
| 1541 | */
|
---|
| 1542 | static int Allowed_Whitespace[0x100] = {
|
---|
| 1543 | /* 0x00 */ 0,0,0,0,0,0,0,0,0, /* 0x08 */
|
---|
| 1544 | /* 0x09 */ 1 /* <TAB> */, /* 0x09 */
|
---|
| 1545 | /* 0x0a */ 1 /* <LF> */, /* 0x0a */
|
---|
| 1546 | /* 0x0b */ 0,0, /* 0x0c */
|
---|
| 1547 | /* 0x0d */ 1 /* <CR> */, /* 0x0d */
|
---|
| 1548 | /* 0x0e */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1f */
|
---|
| 1549 | /* 0x20 */ 1 /* <SP> */, /* 0x20 */
|
---|
| 1550 | /* 0x21 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x40 */
|
---|
| 1551 | /* 0x41 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x60 */
|
---|
| 1552 | /* 0x61 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x80 */
|
---|
| 1553 | /* 0x81 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xa0 */
|
---|
| 1554 | /* 0xa1 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xc0 */
|
---|
| 1555 | /* 0xc1 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xe0 */
|
---|
| 1556 | /* 0xe1 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xfe */
|
---|
| 1557 | };
|
---|
| 1558 |
|
---|
| 1559 | static const int String_No_Passthrough[0x100] = {
|
---|
| 1560 | /* 0x00 */ 1 /* <NUL> */, /* 0x00 */
|
---|
| 1561 | /* 0x01 */ 1 /* <SOH> */, /* 0x01 */
|
---|
| 1562 | /* 0x02 */ 1 /* <STX> */, /* 0x02 */
|
---|
| 1563 | /* 0x03 */ 1 /* <ETX> */, /* 0x03 */
|
---|
| 1564 | /* 0x04 */ 1 /* <EOT> */, /* 0x04 */
|
---|
| 1565 | /* 0x05 */ 1 /* <ENQ> */, /* 0x05 */
|
---|
| 1566 | /* 0x06 */ 1 /* <ACK> */, /* 0x06 */
|
---|
| 1567 | /* 0x07 */ 1 /* <BEL> */, /* 0x07 */
|
---|
| 1568 | /* 0x08 */ 1 /* <BS> */, /* 0x08 */
|
---|
| 1569 | /* 0x09 */ 1 /* <HT> */, /* 0x09 */
|
---|
| 1570 | /* 0x0a */ 1 /* <LF> */, /* 0x0a */
|
---|
| 1571 | /* 0x0b */ 1 /* <VT> */, /* 0x0b */
|
---|
| 1572 | /* 0x0c */ 1 /* <FF> */, /* 0x0c */
|
---|
| 1573 | /* 0x0d */ 1 /* <CR> */, /* 0x0d */
|
---|
| 1574 | /* 0x0e */ 1 /* <SO> */, /* 0x0e */
|
---|
| 1575 | /* 0x0f */ 1 /* <SI> */, /* 0x0f */
|
---|
| 1576 | /* 0x10 */ 1 /* <DLE> */, /* 0x10 */
|
---|
| 1577 | /* 0x11 */ 1 /* <DC1> */, /* 0x11 */
|
---|
| 1578 | /* 0x12 */ 1 /* <DC2> */, /* 0x12 */
|
---|
| 1579 | /* 0x13 */ 1 /* <DC3> */, /* 0x13 */
|
---|
| 1580 | /* 0x14 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x21 */
|
---|
| 1581 | /* 0x22 */ 1 /* <"> */, /* 0x22 */
|
---|
| 1582 | /* 0x23 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x42 */
|
---|
| 1583 | /* 0x43 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x5b */
|
---|
| 1584 | /* 0x5c */ 1 /* <\> */, /* 0x5c */
|
---|
| 1585 | /* 0x5d */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x7c */
|
---|
| 1586 | /* 0x7d */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9c */
|
---|
| 1587 | /* 0x9d */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xbc */
|
---|
| 1588 | /* 0xbd */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xdc */
|
---|
| 1589 | /* 0xdd */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xfc */
|
---|
| 1590 | /* 0xfd */ 0,0, /* 0xfe */
|
---|
| 1591 | };
|
---|
| 1592 |
|
---|
| 1593 | /**
|
---|
| 1594 | * Allowable two-character 'common' escapes:
|
---|
| 1595 | */
|
---|
| 1596 | static int Allowed_Escapes[0x100] = {
|
---|
| 1597 | /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1f */
|
---|
| 1598 | /* 0x20 */ 0,0, /* 0x21 */
|
---|
| 1599 | /* 0x22 */ 1 /* <"> */, /* 0x22 */
|
---|
| 1600 | /* 0x23 */ 0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2e */
|
---|
| 1601 | /* 0x2f */ 1 /* </> */, /* 0x2f */
|
---|
| 1602 | /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f */
|
---|
| 1603 | /* 0x50 */ 0,0,0,0,0,0,0,0,0,0,0,0, /* 0x5b */
|
---|
| 1604 | /* 0x5c */ 1 /* <\> */, /* 0x5c */
|
---|
| 1605 | /* 0x5d */ 0,0,0,0,0, /* 0x61 */
|
---|
| 1606 | /* 0x62 */ 1 /* <b> */, /* 0x62 */
|
---|
| 1607 | /* 0x63 */ 0,0,0, /* 0x65 */
|
---|
| 1608 | /* 0x66 */ 1 /* <f> */, /* 0x66 */
|
---|
| 1609 | /* 0x67 */ 0,0,0,0,0,0,0, /* 0x6d */
|
---|
| 1610 | /* 0x6e */ 1 /* <n> */, /* 0x6e */
|
---|
| 1611 | /* 0x6f */ 0,0,0, /* 0x71 */
|
---|
| 1612 | /* 0x72 */ 1 /* <r> */, /* 0x72 */
|
---|
| 1613 | /* 0x73 */ 0, /* 0x73 */
|
---|
| 1614 | /* 0x74 */ 1 /* <t> */, /* 0x74 */
|
---|
| 1615 | /* 0x75 */ 1 /* <u> */, /* 0x75 */
|
---|
| 1616 | /* 0x76 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x95 */
|
---|
| 1617 | /* 0x96 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xb5 */
|
---|
| 1618 | /* 0xb6 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xd5 */
|
---|
| 1619 | /* 0xd6 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xf5 */
|
---|
| 1620 | /* 0xf6 */ 0,0,0,0,0,0,0,0,0, /* 0xfe */
|
---|
| 1621 | };
|
---|
| 1622 |
|
---|
| 1623 | /**
|
---|
| 1624 | * This table contains the _values_ for a given (single) escaped character.
|
---|
| 1625 | */
|
---|
| 1626 | static unsigned char Escape_Equivs[0x100] = {
|
---|
| 1627 | /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1f */
|
---|
| 1628 | /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3f */
|
---|
| 1629 | /* 0x40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x5f */
|
---|
| 1630 | /* 0x60 */ 0,0, /* 0x61 */
|
---|
| 1631 | /* 0x62 */ 8 /* <b> */, /* 0x62 */
|
---|
| 1632 | /* 0x63 */ 0,0,0, /* 0x65 */
|
---|
| 1633 | /* 0x66 */ 12 /* <f> */, /* 0x66 */
|
---|
| 1634 | /* 0x67 */ 0,0,0,0,0,0,0, /* 0x6d */
|
---|
| 1635 | /* 0x6e */ 10 /* <n> */, /* 0x6e */
|
---|
| 1636 | /* 0x6f */ 0,0,0, /* 0x71 */
|
---|
| 1637 | /* 0x72 */ 13 /* <r> */, /* 0x72 */
|
---|
| 1638 | /* 0x73 */ 0, /* 0x73 */
|
---|
| 1639 | /* 0x74 */ 9 /* <t> */, /* 0x74 */
|
---|
| 1640 | /* 0x75 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x94 */
|
---|
| 1641 | /* 0x95 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xb4 */
|
---|
| 1642 | /* 0xb5 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xd4 */
|
---|
| 1643 | /* 0xd5 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xf4 */
|
---|
| 1644 | /* 0xf5 */ 0,0,0,0,0,0,0,0,0,0 /* 0xfe */
|
---|
| 1645 | };
|
---|
| 1646 |
|
---|
| 1647 | /* Definitions of above-declared static functions */
|
---|
| 1648 | static char get_escape_equiv(unsigned c) {
|
---|
| 1649 | return Escape_Equivs[c & 0xff];
|
---|
| 1650 | }
|
---|
| 1651 | static unsigned extract_special(unsigned c) {
|
---|
| 1652 | return Special_Table[c & 0xff];
|
---|
| 1653 | }
|
---|
| 1654 | static int is_special_end(unsigned c) {
|
---|
| 1655 | return Special_Endings[c & 0xff];
|
---|
| 1656 | }
|
---|
| 1657 | static int is_allowed_whitespace(unsigned c) {
|
---|
| 1658 | return c == ' ' || Allowed_Whitespace[c & 0xff];
|
---|
| 1659 | }
|
---|
| 1660 | static int is_allowed_escape(unsigned c) {
|
---|
| 1661 | return Allowed_Escapes[c & 0xff];
|
---|
| 1662 | }
|
---|
| 1663 | static int is_simple_char(unsigned c) {
|
---|
| 1664 | return !String_No_Passthrough[c & 0xff];
|
---|
| 1665 | }
|
---|
| 1666 |
|
---|
| 1667 | /* Clean up all our macros! */
|
---|
| 1668 | #undef INCR_METRIC
|
---|
| 1669 | #undef INCR_GENERIC
|
---|
| 1670 | #undef INCR_STRINGY_CATCH
|
---|
| 1671 | #undef CASE_DIGITS
|
---|
| 1672 | #undef INVOKE_ERROR
|
---|
| 1673 | #undef STACK_PUSH
|
---|
| 1674 | #undef STACK_POP_NOPOS
|
---|
| 1675 | #undef STACK_POP
|
---|
| 1676 | #undef CALLBACK_AND_POP_NOPOS
|
---|
| 1677 | #undef CALLBACK_AND_POP
|
---|
| 1678 | #undef SPECIAL_POP
|
---|
| 1679 | #undef CUR_CHAR
|
---|
| 1680 | #undef DO_CALLBACK
|
---|
| 1681 | #undef ENSURE_HVAL
|
---|
| 1682 | #undef VERIFY_SPECIAL
|
---|
| 1683 | #undef STATE_SPECIAL_LENGTH
|
---|
| 1684 | #undef IS_NORMAL_NUMBER
|
---|
| 1685 | #undef STATE_NUM_LAST
|
---|
| 1686 | #undef FASTPARSE_EXHAUSTED
|
---|
| 1687 | #undef FASTPARSE_BREAK
|
---|