mirror of
https://github.com/transmission/transmission
synced 2024-12-25 01:03:01 +00:00
1263 lines
38 KiB
C
1263 lines
38 KiB
C
/*
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* jsonsl
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* https://github.com/mnunberg/jsonsl
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*
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* Copyright (c) 2012 M. Nunberg, mnunberg@haskalah.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "jsonsl.h"
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#include <assert.h>
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#include <ctype.h>
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#ifdef JSONSL_USE_METRICS
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#define XMETRICS \
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X(STRINGY_INSIGNIFICANT) \
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X(STRINGY_SLOWPATH) \
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X(ALLOWED_WHITESPACE) \
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X(QUOTE_FASTPATH) \
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X(SPECIAL_FASTPATH) \
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X(SPECIAL_WSPOP) \
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X(SPECIAL_SLOWPATH) \
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X(GENERIC) \
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X(STRUCTURAL_TOKEN) \
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X(SPECIAL_SWITCHFIRST) \
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X(STRINGY_CATCH) \
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X(ESCAPES) \
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X(TOTAL) \
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struct jsonsl_metrics_st {
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#define X(m) \
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unsigned long metric_##m;
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XMETRICS
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#undef X
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};
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static struct jsonsl_metrics_st GlobalMetrics = { 0 };
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static unsigned long GenericCounter[0x100] = { 0 };
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static unsigned long StringyCatchCounter[0x100] = { 0 };
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#define INCR_METRIC(m) \
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GlobalMetrics.metric_##m++;
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#define INCR_GENERIC(c) \
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INCR_METRIC(GENERIC); \
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GenericCounter[c]++; \
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#define INCR_STRINGY_CATCH(c) \
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INCR_METRIC(STRINGY_CATCH); \
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StringyCatchCounter[c]++;
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JSONSL_API
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void jsonsl_dump_global_metrics(void)
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{
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int ii;
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printf("JSONSL Metrics:\n");
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#define X(m) \
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printf("\t%-30s %20lu (%0.2f%%)\n", #m, GlobalMetrics.metric_##m, \
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(float)((float)(GlobalMetrics.metric_##m/(float)GlobalMetrics.metric_TOTAL)) * 100);
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XMETRICS
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#undef X
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printf("Generic Characters:\n");
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for (ii = 0; ii < 0xff; ii++) {
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if (GenericCounter[ii]) {
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printf("\t[ %c ] %lu\n", ii, GenericCounter[ii]);
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}
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}
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printf("Weird string loop\n");
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for (ii = 0; ii < 0xff; ii++) {
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if (StringyCatchCounter[ii]) {
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printf("\t[ %c ] %lu\n", ii, StringyCatchCounter[ii]);
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}
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}
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}
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#else
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#define INCR_METRIC(m)
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#define INCR_GENERIC(c)
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#define INCR_STRINGY_CATCH(c)
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JSONSL_API
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void jsonsl_dump_global_metrics(void) { }
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#endif /* JSONSL_USE_METRICS */
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#define CASE_DIGITS \
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case '1': \
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case '2': \
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case '3': \
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case '4': \
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case '5': \
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case '6': \
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case '7': \
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case '8': \
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case '9': \
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case '0':
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/**
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* This table (predeclared) contains characters which are recognized
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* non-string values.
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*/
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static jsonsl_special_t *Special_table;
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#define extract_special(c) \
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Special_table[(unsigned int)(c & 0xff)]
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/**
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* This table (predeclared) contains the tokens and other characters
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* which signal the termination of the non-string values.
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*/
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static int *Special_Endings;
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#define is_special_end(c) \
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Special_Endings[(unsigned int)c & 0xff]
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/**
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* This table contains entries for the allowed whitespace
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* as per RFC 4627
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*/
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static int *Allowed_Whitespace;
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#define is_allowed_whitespace(c) \
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(c == ' ' || Allowed_Whitespace[(unsigned int)c & 0xff])
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/**
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* This table contains allowed two-character escapes
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* as per the RFC
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*/
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static int *Allowed_Escapes;
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#define is_allowed_escape(c) \
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Allowed_Escapes[(unsigned int)c & 0xff]
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JSONSL_API
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jsonsl_t jsonsl_new(int nlevels)
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{
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struct jsonsl_st *jsn =
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calloc(1, sizeof (*jsn) +
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( (nlevels-1) * sizeof (struct jsonsl_state_st) )
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);
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jsn->levels_max = nlevels;
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jsn->max_callback_level = -1;
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jsonsl_reset(jsn);
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return jsn;
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}
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JSONSL_API
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void jsonsl_reset(jsonsl_t jsn)
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{
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unsigned int ii;
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jsn->tok_last = 0;
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jsn->can_insert = 1;
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jsn->pos = 0;
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jsn->level = 0;
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jsn->in_escape = 0;
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jsn->expecting = 0;
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memset(jsn->stack, 0, (jsn->levels_max * sizeof (struct jsonsl_state_st)));
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for (ii = 0; ii < jsn->levels_max; ii++) {
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jsn->stack[ii].level = ii;
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}
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}
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JSONSL_API
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void jsonsl_destroy(jsonsl_t jsn)
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{
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if (jsn) {
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free(jsn);
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}
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}
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JSONSL_API
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void
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jsonsl_feed(jsonsl_t jsn, const jsonsl_char_t *bytes, size_t nbytes)
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{
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#define INVOKE_ERROR(eb) \
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if (jsn->error_callback(jsn, JSONSL_ERROR_##eb, state, (char*)c)) { \
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goto GT_AGAIN; \
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} \
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return;
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#define STACK_PUSH \
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if (jsn->level >= (levels_max-1)) { \
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jsn->error_callback(jsn, JSONSL_ERROR_LEVELS_EXCEEDED, state, (char*)c); \
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return; \
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} \
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state = jsn->stack + (++jsn->level); \
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state->ignore_callback = jsn->stack[jsn->level-1].ignore_callback; \
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state->pos_begin = jsn->pos;
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#define STACK_POP_NOPOS \
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state->pos_cur = jsn->pos; \
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state = jsn->stack + (--jsn->level);
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#define STACK_POP \
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STACK_POP_NOPOS; \
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state->pos_cur = jsn->pos;
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#define CALLBACK_AND_POP_NOPOS(T) \
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state->pos_cur = jsn->pos; \
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DO_CALLBACK(T, POP); \
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state->nescapes = 0; \
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state = jsn->stack + (--jsn->level);
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#define CALLBACK_AND_POP(T) \
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CALLBACK_AND_POP_NOPOS(T); \
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state->pos_cur = jsn->pos;
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#define SPECIAL_POP \
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CALLBACK_AND_POP(SPECIAL); \
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jsn->expecting = 0; \
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jsn->tok_last = 0; \
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#define CUR_CHAR (*(jsonsl_uchar_t*)c)
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#define DO_CALLBACK(T, action) \
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if (jsn->call_##T && \
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jsn->max_callback_level > state->level && \
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state->ignore_callback == 0) { \
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\
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if (jsn->action_callback_##action) { \
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jsn->action_callback_##action(jsn, JSONSL_ACTION_##action, state, (jsonsl_char_t*)c); \
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} else if (jsn->action_callback) { \
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jsn->action_callback(jsn, JSONSL_ACTION_##action, state, (jsonsl_char_t*)c); \
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} \
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}
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/**
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* Verifies that we are able to insert the (non-string) item into a hash.
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*/
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#define ENSURE_HVAL \
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if (state->nelem % 2 == 0 && state->type == JSONSL_T_OBJECT) { \
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INVOKE_ERROR(HKEY_EXPECTED); \
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}
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#define VERIFY_SPECIAL(lit) \
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if (CUR_CHAR != (lit)[jsn->pos - state->pos_begin]) { \
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INVOKE_ERROR(SPECIAL_EXPECTED); \
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}
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const jsonsl_uchar_t *c = (jsonsl_uchar_t*)bytes;
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size_t levels_max = jsn->levels_max;
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struct jsonsl_state_st *state = jsn->stack + jsn->level;
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static int chrt_string_nopass[0x100] = { JSONSL_CHARTABLE_string_nopass };
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jsn->base = bytes;
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for (; nbytes; nbytes--, jsn->pos++, c++) {
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register jsonsl_type_t state_type;
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INCR_METRIC(TOTAL);
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/* Special escape handling for some stuff */
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if (jsn->in_escape) {
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jsn->in_escape = 0;
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if (!is_allowed_escape(CUR_CHAR)) {
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INVOKE_ERROR(ESCAPE_INVALID);
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} else if (CUR_CHAR == 'u') {
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DO_CALLBACK(UESCAPE, UESCAPE);
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if (jsn->return_UESCAPE) {
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return;
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}
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}
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goto GT_NEXT;
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}
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GT_AGAIN:
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/**
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* Several fast-tracks for common cases:
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*/
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state_type = state->type;
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if (state_type & JSONSL_Tf_STRINGY) {
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/* check if our character cannot ever change our current string state
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* or throw an error
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*/
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if (
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#ifdef JSONSL_USE_WCHAR
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CUR_CHAR >= 0x100 ||
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#endif /* JSONSL_USE_WCHAR */
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(!chrt_string_nopass[CUR_CHAR & 0xff])) {
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INCR_METRIC(STRINGY_INSIGNIFICANT);
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goto GT_NEXT;
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} else if (CUR_CHAR == '"') {
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goto GT_QUOTE;
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} else if (CUR_CHAR == '\\') {
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goto GT_ESCAPE;
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} else {
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INVOKE_ERROR(WEIRD_WHITESPACE);
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}
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INCR_METRIC(STRINGY_SLOWPATH);
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} else if (state_type == JSONSL_T_SPECIAL) {
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if (state->special_flags & JSONSL_SPECIALf_NUMERIC) {
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switch (CUR_CHAR) {
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CASE_DIGITS
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state->nelem = (state->nelem*10) + (CUR_CHAR-0x30);
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goto GT_NEXT;
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case 'e':
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case 'E':
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case '-':
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case '+':
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state->special_flags |= JSONSL_SPECIALf_EXPONENT;
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goto GT_NEXT;
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case '.':
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state->special_flags |= JSONSL_SPECIALf_FLOAT;
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goto GT_NEXT;
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default:
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if (is_special_end(CUR_CHAR)) {
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goto GT_SPECIAL_POP;
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}
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INVOKE_ERROR(INVALID_NUMBER);
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break;
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}
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}
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/* else if (!NUMERIC) */
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if (!is_special_end(CUR_CHAR)) {
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/* Verify TRUE, FALSE, NULL */
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if (state->special_flags == JSONSL_SPECIALf_TRUE) {
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VERIFY_SPECIAL("true");
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} else if (state->special_flags == JSONSL_SPECIALf_FALSE) {
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VERIFY_SPECIAL("false");
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} else if (state->special_flags == JSONSL_SPECIALf_NULL) {
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VERIFY_SPECIAL("null");
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}
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INCR_METRIC(SPECIAL_FASTPATH);
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goto GT_NEXT;
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}
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GT_SPECIAL_POP:
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SPECIAL_POP;
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jsn->expecting = ',';
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if (is_allowed_whitespace(CUR_CHAR)) {
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goto GT_NEXT;
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}
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/**
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* This works because we have a non-whitespace token
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* which is not a special token. If this is a structural
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* character then it will be gracefully handled by the
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* switch statement. Otherwise it will default to the 'special'
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* state again,
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*/
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goto GT_STRUCTURAL_TOKEN;
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} else if (is_allowed_whitespace(CUR_CHAR)) {
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INCR_METRIC(ALLOWED_WHITESPACE);
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/* So we're not special. Harmless insignificant whitespace
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* passthrough
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*/
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goto GT_NEXT;
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} else if (extract_special(CUR_CHAR)) {
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/* not a string, whitespace, or structural token. must be special */
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goto GT_SPECIAL_BEGIN;
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}
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INCR_GENERIC(CUR_CHAR);
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if (CUR_CHAR == '"') {
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GT_QUOTE:
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jsn->can_insert = 0;
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switch (state_type) {
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/* the end of a string or hash key */
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case JSONSL_T_STRING:
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CALLBACK_AND_POP(STRING);
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goto GT_NEXT;
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case JSONSL_T_HKEY:
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CALLBACK_AND_POP(HKEY);
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goto GT_NEXT;
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case JSONSL_T_OBJECT:
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state->nelem++;
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if ( (state->nelem-1) % 2 ) {
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/* Odd, this must be a hash value */
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if (jsn->tok_last != ':') {
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INVOKE_ERROR(MISSING_TOKEN);
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}
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jsn->expecting = ','; /* Can't figure out what to expect next */
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jsn->tok_last = 0;
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STACK_PUSH;
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state->type = JSONSL_T_STRING;
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DO_CALLBACK(STRING, PUSH);
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} else {
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/* hash key */
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if (jsn->expecting != '"') {
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INVOKE_ERROR(STRAY_TOKEN);
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}
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jsn->tok_last = 0;
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jsn->expecting = ':';
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|
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STACK_PUSH;
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state->type = JSONSL_T_HKEY;
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DO_CALLBACK(HKEY, PUSH);
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}
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goto GT_NEXT;
|
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|
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case JSONSL_T_LIST:
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state->nelem++;
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STACK_PUSH;
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state->type = JSONSL_T_STRING;
|
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jsn->expecting = ',';
|
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jsn->tok_last = 0;
|
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DO_CALLBACK(STRING, PUSH);
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goto GT_NEXT;
|
|
|
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case JSONSL_T_SPECIAL:
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INVOKE_ERROR(STRAY_TOKEN);
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break;
|
|
|
|
default:
|
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INVOKE_ERROR(STRING_OUTSIDE_CONTAINER);
|
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break;
|
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} /* switch(state->type) */
|
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} else if (CUR_CHAR == '\\') {
|
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GT_ESCAPE:
|
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INCR_METRIC(ESCAPES);
|
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/* Escape */
|
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if ( (state->type & JSONSL_Tf_STRINGY) == 0 ) {
|
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INVOKE_ERROR(ESCAPE_OUTSIDE_STRING);
|
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}
|
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state->nescapes++;
|
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jsn->in_escape = 1;
|
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goto GT_NEXT;
|
|
} /* " or \ */
|
|
|
|
GT_STRUCTURAL_TOKEN:
|
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switch (CUR_CHAR) {
|
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case ':':
|
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INCR_METRIC(STRUCTURAL_TOKEN);
|
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if (jsn->expecting != CUR_CHAR) {
|
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INVOKE_ERROR(STRAY_TOKEN);
|
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}
|
|
jsn->tok_last = ':';
|
|
jsn->can_insert = 1;
|
|
jsn->expecting = '"';
|
|
goto GT_NEXT;
|
|
|
|
case ',':
|
|
INCR_METRIC(STRUCTURAL_TOKEN);
|
|
/**
|
|
* The comma is one of the more generic tokens.
|
|
* In the context of an OBJECT, the can_insert flag
|
|
* should never be set, and no other action is
|
|
* necessary.
|
|
*/
|
|
if (jsn->expecting != CUR_CHAR) {
|
|
/* make this branch execute only when we haven't manually
|
|
* just placed the ',' in the expecting register.
|
|
*/
|
|
INVOKE_ERROR(STRAY_TOKEN);
|
|
}
|
|
|
|
if (state->type == JSONSL_T_OBJECT) {
|
|
/* end of hash value, expect a string as a hash key */
|
|
jsn->expecting = '"';
|
|
} else {
|
|
jsn->can_insert = 1;
|
|
}
|
|
|
|
jsn->tok_last = ',';
|
|
jsn->expecting = '"';
|
|
goto GT_NEXT;
|
|
|
|
/* new list or object */
|
|
/* hashes are more common */
|
|
case '{':
|
|
case '[':
|
|
INCR_METRIC(STRUCTURAL_TOKEN);
|
|
if (!jsn->can_insert) {
|
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INVOKE_ERROR(CANT_INSERT);
|
|
}
|
|
|
|
ENSURE_HVAL;
|
|
state->nelem++;
|
|
|
|
STACK_PUSH;
|
|
/* because the constants match the opening delimiters, we can do this: */
|
|
state->type = CUR_CHAR;
|
|
state->nelem = 0;
|
|
jsn->can_insert = 1;
|
|
if (CUR_CHAR == '{') {
|
|
/* If we're a hash, we expect a key first, which is quouted */
|
|
jsn->expecting = '"';
|
|
}
|
|
if (CUR_CHAR == JSONSL_T_OBJECT) {
|
|
DO_CALLBACK(OBJECT, PUSH);
|
|
} else {
|
|
DO_CALLBACK(LIST, PUSH);
|
|
}
|
|
jsn->tok_last = 0;
|
|
goto GT_NEXT;
|
|
|
|
/* closing of list or object */
|
|
case '}':
|
|
case ']':
|
|
INCR_METRIC(STRUCTURAL_TOKEN);
|
|
if (jsn->tok_last == ',' && jsn->options.allow_trailing_comma == 0) {
|
|
INVOKE_ERROR(TRAILING_COMMA);
|
|
}
|
|
|
|
jsn->can_insert = 0;
|
|
jsn->level--;
|
|
jsn->expecting = ',';
|
|
jsn->tok_last = 0;
|
|
if (CUR_CHAR == ']') {
|
|
if (state->type != '[') {
|
|
INVOKE_ERROR(BRACKET_MISMATCH);
|
|
}
|
|
DO_CALLBACK(LIST, POP);
|
|
} else {
|
|
if (state->type != '{') {
|
|
INVOKE_ERROR(BRACKET_MISMATCH);
|
|
}
|
|
DO_CALLBACK(OBJECT, POP);
|
|
}
|
|
state = jsn->stack + jsn->level;
|
|
state->pos_cur = jsn->pos;
|
|
goto GT_NEXT;
|
|
|
|
default:
|
|
GT_SPECIAL_BEGIN:
|
|
/**
|
|
* Not a string, not a structural token, and not benign whitespace.
|
|
* Technically we should iterate over the character always, but since
|
|
* we are not doing full numerical/value decoding anyway (but only hinting),
|
|
* we only check upon entry.
|
|
*/
|
|
if (state->type != JSONSL_T_SPECIAL) {
|
|
int special_flags = extract_special(CUR_CHAR);
|
|
if (!special_flags) {
|
|
/**
|
|
* Try to do some heuristics here anyway to figure out what kind of
|
|
* error this is. The 'special' case is a fallback scenario anyway.
|
|
*/
|
|
if (CUR_CHAR == '\0') {
|
|
INVOKE_ERROR(FOUND_NULL_BYTE);
|
|
} else if (CUR_CHAR < 0x20) {
|
|
INVOKE_ERROR(WEIRD_WHITESPACE);
|
|
} else {
|
|
INVOKE_ERROR(SPECIAL_EXPECTED);
|
|
}
|
|
}
|
|
ENSURE_HVAL;
|
|
state->nelem++;
|
|
if (!jsn->can_insert) {
|
|
INVOKE_ERROR(CANT_INSERT);
|
|
}
|
|
STACK_PUSH;
|
|
state->type = JSONSL_T_SPECIAL;
|
|
state->special_flags = special_flags;
|
|
if (special_flags == JSONSL_SPECIALf_UNSIGNED) {
|
|
state->nelem = CUR_CHAR - 0x30;
|
|
} else {
|
|
state->nelem = 0;
|
|
}
|
|
DO_CALLBACK(SPECIAL, PUSH);
|
|
}
|
|
goto GT_NEXT;
|
|
}
|
|
|
|
GT_NEXT:
|
|
continue;
|
|
}
|
|
}
|
|
|
|
JSONSL_API
|
|
const char* jsonsl_strerror(jsonsl_error_t err)
|
|
{
|
|
#define X(t) \
|
|
if (err == JSONSL_ERROR_##t) \
|
|
return #t;
|
|
JSONSL_XERR;
|
|
#undef X
|
|
return "<UNKNOWN_ERROR>";
|
|
}
|
|
|
|
JSONSL_API
|
|
const char *jsonsl_strtype(jsonsl_type_t type)
|
|
{
|
|
#define X(o,c) \
|
|
if (type == JSONSL_T_##o) \
|
|
return #o;
|
|
JSONSL_XTYPE
|
|
#undef X
|
|
return "UNKNOWN TYPE";
|
|
|
|
}
|
|
|
|
/*
|
|
*
|
|
* JPR/JSONPointer functions
|
|
*
|
|
*
|
|
*/
|
|
#ifndef JSONSL_NO_JPR
|
|
static
|
|
jsonsl_jpr_type_t
|
|
populate_component(char *in,
|
|
struct jsonsl_jpr_component_st *component,
|
|
char **next,
|
|
jsonsl_error_t *errp)
|
|
{
|
|
unsigned long pctval;
|
|
char *c = NULL, *outp = NULL, *end = NULL;
|
|
size_t input_len;
|
|
jsonsl_jpr_type_t ret = JSONSL_PATH_NONE;
|
|
|
|
if (*next == NULL || *(*next) == '\0') {
|
|
return JSONSL_PATH_NONE;
|
|
}
|
|
|
|
/* Replace the next / with a NULL */
|
|
*next = strstr(in, "/");
|
|
if (*next != NULL) {
|
|
*(*next) = '\0'; /* drop the forward slash */
|
|
input_len = *next - in;
|
|
end = *next;
|
|
*next += 1; /* next character after the '/' */
|
|
} else {
|
|
input_len = strlen(in);
|
|
end = in + input_len + 1;
|
|
}
|
|
|
|
component->pstr = in;
|
|
|
|
/* Check for special components of interest */
|
|
if (*in == JSONSL_PATH_WILDCARD_CHAR && input_len == 1) {
|
|
/* Lone wildcard */
|
|
ret = JSONSL_PATH_WILDCARD;
|
|
goto GT_RET;
|
|
} else if (isdigit(*in)) {
|
|
/* ASCII Numeric */
|
|
char *endptr;
|
|
component->idx = strtoul(in, &endptr, 10);
|
|
if (endptr && *endptr == '\0') {
|
|
ret = JSONSL_PATH_NUMERIC;
|
|
goto GT_RET;
|
|
}
|
|
}
|
|
|
|
/* Default, it's a string */
|
|
ret = JSONSL_PATH_STRING;
|
|
for (c = outp = in; c < end; c++, outp++) {
|
|
char origc;
|
|
if (*c != '%') {
|
|
goto GT_ASSIGN;
|
|
}
|
|
/*
|
|
* c = { [+0] = '%', [+1] = 'b', [+2] = 'e', [+3] = '\0' }
|
|
*/
|
|
|
|
/* Need %XX */
|
|
if (c+2 >= end) {
|
|
*errp = JSONSL_ERROR_PERCENT_BADHEX;
|
|
return JSONSL_PATH_INVALID;
|
|
}
|
|
if (! (isxdigit(*(c+1)) && isxdigit(*(c+2))) ) {
|
|
*errp = JSONSL_ERROR_PERCENT_BADHEX;
|
|
return JSONSL_PATH_INVALID;
|
|
}
|
|
|
|
/* Temporarily null-terminate the characters */
|
|
origc = *(c+3);
|
|
*(c+3) = '\0';
|
|
pctval = strtoul(c+1, NULL, 16);
|
|
*(c+3) = origc;
|
|
|
|
*outp = (char) pctval;
|
|
c += 2;
|
|
continue;
|
|
|
|
GT_ASSIGN:
|
|
*outp = *c;
|
|
}
|
|
/* Null-terminate the string */
|
|
for (; outp < c; outp++) {
|
|
*outp = '\0';
|
|
}
|
|
|
|
GT_RET:
|
|
component->ptype = ret;
|
|
if (ret != JSONSL_PATH_WILDCARD) {
|
|
component->len = strlen(component->pstr);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
JSONSL_API
|
|
jsonsl_jpr_t
|
|
jsonsl_jpr_new(const char *path, jsonsl_error_t *errp)
|
|
{
|
|
char *my_copy;
|
|
int count, curidx;
|
|
struct jsonsl_jpr_st *ret;
|
|
struct jsonsl_jpr_component_st *components;
|
|
size_t origlen;
|
|
jsonsl_error_t errstacked;
|
|
|
|
if (errp == NULL) {
|
|
errp = &errstacked;
|
|
}
|
|
|
|
if (path == NULL || *path != '/') {
|
|
*errp = JSONSL_ERROR_JPR_NOROOT;
|
|
return NULL;
|
|
}
|
|
|
|
count = 1;
|
|
path++;
|
|
{
|
|
const char *c = path;
|
|
for (; *c; c++) {
|
|
if (*c == '/') {
|
|
count++;
|
|
if (*(c+1) == '/') {
|
|
*errp = JSONSL_ERROR_JPR_DUPSLASH;
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if(*path) {
|
|
count++;
|
|
}
|
|
|
|
components = malloc(sizeof(*components) * count);
|
|
my_copy = malloc(strlen(path) + 1);
|
|
strcpy(my_copy, path);
|
|
|
|
components[0].ptype = JSONSL_PATH_ROOT;
|
|
|
|
if (*my_copy) {
|
|
char *cur = my_copy;
|
|
int pathret = JSONSL_PATH_STRING;
|
|
curidx = 1;
|
|
while (pathret > 0 && curidx < count) {
|
|
pathret = populate_component(cur, components + curidx, &cur, errp);
|
|
if (pathret > 0) {
|
|
curidx++;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pathret == JSONSL_PATH_INVALID) {
|
|
free(components);
|
|
free(my_copy);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
curidx = 1;
|
|
}
|
|
|
|
path--; /*revert path to leading '/' */
|
|
origlen = strlen(path) + 1;
|
|
ret = malloc(sizeof(*ret));
|
|
ret->components = components;
|
|
ret->ncomponents = curidx;
|
|
ret->basestr = my_copy;
|
|
ret->orig = malloc(origlen);
|
|
ret->norig = origlen-1;
|
|
strcpy(ret->orig, path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void jsonsl_jpr_destroy(jsonsl_jpr_t jpr)
|
|
{
|
|
free(jpr->components);
|
|
free(jpr->basestr);
|
|
free(jpr->orig);
|
|
free(jpr);
|
|
}
|
|
|
|
JSONSL_API
|
|
jsonsl_jpr_match_t
|
|
jsonsl_jpr_match(jsonsl_jpr_t jpr,
|
|
jsonsl_type_t parent_type,
|
|
unsigned int parent_level,
|
|
const char *key,
|
|
size_t nkey)
|
|
{
|
|
/* find our current component. This is the child level */
|
|
int cmpret;
|
|
struct jsonsl_jpr_component_st *p_component;
|
|
p_component = jpr->components + parent_level;
|
|
|
|
if (parent_level >= jpr->ncomponents) {
|
|
return JSONSL_MATCH_NOMATCH;
|
|
}
|
|
|
|
/* Lone query for 'root' element. Always matches */
|
|
if (parent_level == 0) {
|
|
if (jpr->ncomponents == 1) {
|
|
return JSONSL_MATCH_COMPLETE;
|
|
} else {
|
|
return JSONSL_MATCH_POSSIBLE;
|
|
}
|
|
}
|
|
|
|
/* Wildcard, always matches */
|
|
if (p_component->ptype == JSONSL_PATH_WILDCARD) {
|
|
if (parent_level == jpr->ncomponents-1) {
|
|
return JSONSL_MATCH_COMPLETE;
|
|
} else {
|
|
return JSONSL_MATCH_POSSIBLE;
|
|
}
|
|
}
|
|
|
|
/* Check numeric array index */
|
|
if (p_component->ptype == JSONSL_PATH_NUMERIC
|
|
&& parent_type == JSONSL_T_LIST) {
|
|
if (p_component->idx != nkey) {
|
|
return JSONSL_MATCH_NOMATCH;
|
|
} else {
|
|
if (parent_level == jpr->ncomponents-1) {
|
|
return JSONSL_MATCH_COMPLETE;
|
|
} else {
|
|
return JSONSL_MATCH_POSSIBLE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Check lengths */
|
|
if (p_component->len != nkey) {
|
|
return JSONSL_MATCH_NOMATCH;
|
|
}
|
|
|
|
/* Check string comparison */
|
|
cmpret = strncmp(p_component->pstr, key, nkey);
|
|
if (cmpret != 0) {
|
|
return JSONSL_MATCH_NOMATCH;
|
|
} else {
|
|
if (parent_level == jpr->ncomponents-1) {
|
|
return JSONSL_MATCH_COMPLETE;
|
|
} else {
|
|
return JSONSL_MATCH_POSSIBLE;
|
|
}
|
|
}
|
|
|
|
/* Never reached, but make the compiler happy */
|
|
abort();
|
|
return JSONSL_MATCH_NOMATCH;
|
|
}
|
|
|
|
JSONSL_API
|
|
void jsonsl_jpr_match_state_init(jsonsl_t jsn,
|
|
jsonsl_jpr_t *jprs,
|
|
size_t njprs)
|
|
{
|
|
size_t ii, *firstjmp;
|
|
if (njprs == 0) {
|
|
return;
|
|
}
|
|
jsn->jprs = malloc(sizeof(jsonsl_jpr_t) * njprs);
|
|
jsn->jpr_count = njprs;
|
|
jsn->jpr_root = calloc(1, sizeof(size_t) * njprs * jsn->levels_max);
|
|
memcpy(jsn->jprs, jprs, sizeof(jsonsl_jpr_t) * njprs);
|
|
/* Set the initial jump table values */
|
|
|
|
firstjmp = jsn->jpr_root;
|
|
for (ii = 0; ii < njprs; ii++) {
|
|
firstjmp[ii] = ii+1;
|
|
}
|
|
}
|
|
|
|
JSONSL_API
|
|
void jsonsl_jpr_match_state_cleanup(jsonsl_t jsn)
|
|
{
|
|
if (jsn->jpr_count == 0) {
|
|
return;
|
|
}
|
|
|
|
free(jsn->jpr_root);
|
|
free(jsn->jprs);
|
|
jsn->jprs = NULL;
|
|
jsn->jpr_root = NULL;
|
|
jsn->jpr_count = 0;
|
|
}
|
|
|
|
/**
|
|
* This function should be called exactly once on each element...
|
|
* This should also be called in recursive order, since we rely
|
|
* on the parent having been initalized for a match.
|
|
*
|
|
* Since the parent is checked for a match as well, we maintain a 'serial' counter.
|
|
* Whenever we traverse an element, we expect the serial to be the same as a global
|
|
* integer. If they do not match, we re-initialize the context, and set the serial.
|
|
*
|
|
* This ensures a type of consistency without having a proactive reset by the
|
|
* main lexer itself.
|
|
*
|
|
*/
|
|
JSONSL_API
|
|
jsonsl_jpr_t jsonsl_jpr_match_state(jsonsl_t jsn,
|
|
struct jsonsl_state_st *state,
|
|
const char *key,
|
|
size_t nkey,
|
|
jsonsl_jpr_match_t *out)
|
|
{
|
|
struct jsonsl_state_st *parent_state;
|
|
jsonsl_jpr_t ret = NULL;
|
|
|
|
/* Jump and JPR tables for our own state and the parent state */
|
|
size_t *jmptable, *pjmptable;
|
|
size_t jmp_cur, ii, ourjmpidx;
|
|
|
|
if (!jsn->jpr_root) {
|
|
*out = JSONSL_MATCH_NOMATCH;
|
|
return NULL;
|
|
}
|
|
|
|
pjmptable = jsn->jpr_root + (jsn->jpr_count * (state->level-1));
|
|
jmptable = pjmptable + jsn->jpr_count;
|
|
|
|
/* If the parent cannot match, then invalidate it */
|
|
if (*pjmptable == 0) {
|
|
*jmptable = 0;
|
|
*out = JSONSL_MATCH_NOMATCH;
|
|
return NULL;
|
|
}
|
|
|
|
parent_state = jsn->stack + state->level - 1;
|
|
|
|
if (parent_state->type == JSONSL_T_LIST) {
|
|
nkey = (size_t) parent_state->nelem;
|
|
}
|
|
|
|
*jmptable = 0;
|
|
ourjmpidx = 0;
|
|
memset(jmptable, 0, sizeof(int) * jsn->jpr_count);
|
|
|
|
for (ii = 0; ii < jsn->jpr_count; ii++) {
|
|
jmp_cur = pjmptable[ii];
|
|
if (jmp_cur) {
|
|
jsonsl_jpr_t jpr = jsn->jprs[jmp_cur-1];
|
|
*out = jsonsl_jpr_match(jpr,
|
|
parent_state->type,
|
|
parent_state->level,
|
|
key, nkey);
|
|
if (*out == JSONSL_MATCH_COMPLETE) {
|
|
ret = jpr;
|
|
*jmptable = 0;
|
|
return ret;
|
|
} else if (*out == JSONSL_MATCH_POSSIBLE) {
|
|
jmptable[ourjmpidx] = ii+1;
|
|
ourjmpidx++;
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
if (!*jmptable) {
|
|
*out = JSONSL_MATCH_NOMATCH;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
JSONSL_API
|
|
const char *jsonsl_strmatchtype(jsonsl_jpr_match_t match)
|
|
{
|
|
#define X(T,v) \
|
|
if ( match == JSONSL_MATCH_##T ) \
|
|
return #T;
|
|
JSONSL_XMATCH
|
|
#undef X
|
|
return "<UNKNOWN>";
|
|
}
|
|
|
|
#endif /* JSONSL_WITH_JPR */
|
|
|
|
/**
|
|
* Maps literal escape sequences with special meaning to their
|
|
* actual control codes (e.g.\n => 0x20)
|
|
*/
|
|
static unsigned char *Escape_Maps;
|
|
/**
|
|
* Utility function to convert escape sequences
|
|
*/
|
|
JSONSL_API
|
|
size_t jsonsl_util_unescape_ex(const char *in,
|
|
char *out,
|
|
size_t len,
|
|
const int toEscape[128],
|
|
jsonsl_special_t *oflags,
|
|
jsonsl_error_t *err,
|
|
const char **errat)
|
|
{
|
|
const unsigned char *c = (const unsigned char*)in;
|
|
int in_escape = 0;
|
|
size_t origlen = len;
|
|
/* difference between the length of the input buffer and the output buffer */
|
|
size_t ndiff = 0;
|
|
if (oflags) {
|
|
*oflags = 0;
|
|
}
|
|
#define UNESCAPE_BAIL(e,offset) \
|
|
*err = JSONSL_ERROR_##e; \
|
|
if (errat) { \
|
|
*errat = (const char*)(c+ (ptrdiff_t)(offset)); \
|
|
} \
|
|
return 0;
|
|
|
|
for (; len; len--, c++, out++) {
|
|
unsigned int uesc_val[2];
|
|
if (in_escape) {
|
|
/* inside a previously ignored escape. Ignore */
|
|
in_escape = 0;
|
|
goto GT_ASSIGN;
|
|
}
|
|
|
|
if (*c != '\\') {
|
|
/* Not an escape, so we don't care about this */
|
|
goto GT_ASSIGN;
|
|
}
|
|
|
|
if (len < 2) {
|
|
UNESCAPE_BAIL(ESCAPE_INVALID, 0);
|
|
}
|
|
if (!is_allowed_escape(c[1])) {
|
|
UNESCAPE_BAIL(ESCAPE_INVALID, 1)
|
|
}
|
|
if ((toEscape[(unsigned char)c[1] & 0x7f] == 0 &&
|
|
c[1] != '\\' && c[1] != '"')) {
|
|
/* if we don't want to unescape this string, just continue with
|
|
* the escape flag set
|
|
*/
|
|
in_escape = 1;
|
|
goto GT_ASSIGN;
|
|
}
|
|
|
|
if (c[1] != 'u') {
|
|
/* simple skip-and-replace using pre-defined maps.
|
|
* TODO: should the maps actually reflect the desired
|
|
* replacement character in toEscape?
|
|
*/
|
|
if (Escape_Maps[c[1]]) {
|
|
/* Check if there is a corresponding replacement */
|
|
*out = Escape_Maps[c[1]];
|
|
} else {
|
|
/* Just gobble up the 'reverse-solidus' */
|
|
*out = c[1];
|
|
}
|
|
len--;
|
|
ndiff++;
|
|
c++;
|
|
/* do not assign, just continue */
|
|
continue;
|
|
}
|
|
|
|
/* next == 'u' */
|
|
if (len < 6) {
|
|
/* Need at least six characters:
|
|
* { [0] = '\\', [1] = 'u', [2] = 'f', [3] = 'f', [4] = 'f', [5] = 'f' }
|
|
*/
|
|
UNESCAPE_BAIL(UESCAPE_TOOSHORT, -1);
|
|
}
|
|
|
|
if (sscanf((const char*)(c+2), "%02x%02x", uesc_val, uesc_val+1) != 2) {
|
|
/* We treat the sequence as two octets */
|
|
UNESCAPE_BAIL(UESCAPE_TOOSHORT, -1);
|
|
}
|
|
|
|
/* By now, we gobble up all the six bytes (current implied + 5 next
|
|
* characters), and have at least four missing bytes from the output
|
|
* buffer.
|
|
*/
|
|
len -= 5;
|
|
c += 5;
|
|
|
|
ndiff += 4;
|
|
if (uesc_val[0] == 0) {
|
|
/* only one byte is extracted from the two
|
|
* possible octets. Increment the diff counter by one.
|
|
*/
|
|
*out = uesc_val[1];
|
|
if (oflags && *(unsigned char*)out > 0x7f) {
|
|
*oflags |= JSONSL_SPECIALf_NONASCII;
|
|
}
|
|
ndiff++;
|
|
} else {
|
|
*(out++) = uesc_val[0];
|
|
*out = uesc_val[1];
|
|
if (oflags && (uesc_val[0] > 0x7f || uesc_val[1] > 0x7f)) {
|
|
*oflags |= JSONSL_SPECIALf_NONASCII;
|
|
}
|
|
}
|
|
continue;
|
|
|
|
/* Only reached by previous branches */
|
|
GT_ASSIGN:
|
|
*out = *c;
|
|
}
|
|
*err = JSONSL_ERROR_SUCCESS;
|
|
return origlen - ndiff;
|
|
}
|
|
|
|
/**
|
|
* Character Table definitions.
|
|
* These were all generated via srcutil/genchartables.pl
|
|
*/
|
|
|
|
/**
|
|
* This table contains the beginnings of non-string
|
|
* allowable (bareword) values.
|
|
*/
|
|
static jsonsl_special_t _special_table[0x100] = {
|
|
/* 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 */
|
|
/* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2c */
|
|
/* 0x2d */ JSONSL_SPECIALf_SIGNED /* - */, /* 0x2d */
|
|
/* 0x2e */ 0,0, /* 0x2f */
|
|
/* 0x30 */ JSONSL_SPECIALf_UNSIGNED /* 0 */, /* 0x30 */
|
|
/* 0x31 */ JSONSL_SPECIALf_UNSIGNED /* 1 */, /* 0x31 */
|
|
/* 0x32 */ JSONSL_SPECIALf_UNSIGNED /* 2 */, /* 0x32 */
|
|
/* 0x33 */ JSONSL_SPECIALf_UNSIGNED /* 3 */, /* 0x33 */
|
|
/* 0x34 */ JSONSL_SPECIALf_UNSIGNED /* 4 */, /* 0x34 */
|
|
/* 0x35 */ JSONSL_SPECIALf_UNSIGNED /* 5 */, /* 0x35 */
|
|
/* 0x36 */ JSONSL_SPECIALf_UNSIGNED /* 6 */, /* 0x36 */
|
|
/* 0x37 */ JSONSL_SPECIALf_UNSIGNED /* 7 */, /* 0x37 */
|
|
/* 0x38 */ JSONSL_SPECIALf_UNSIGNED /* 8 */, /* 0x38 */
|
|
/* 0x39 */ JSONSL_SPECIALf_UNSIGNED /* 9 */, /* 0x39 */
|
|
/* 0x3a */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x59 */
|
|
/* 0x5a */ 0,0,0,0,0,0,0,0,0,0,0,0, /* 0x65 */
|
|
/* 0x66 */ JSONSL_SPECIALf_FALSE /* f */, /* 0x66 */
|
|
/* 0x67 */ 0,0,0,0,0,0,0, /* 0x6d */
|
|
/* 0x6e */ JSONSL_SPECIALf_NULL /* n */, /* 0x6e */
|
|
/* 0x6f */ 0,0,0,0,0, /* 0x73 */
|
|
/* 0x74 */ JSONSL_SPECIALf_TRUE /* t */, /* 0x74 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 0xf5 */ 0,0,0,0,0,0,0,0,0,0 /* 0xfe */
|
|
};
|
|
static jsonsl_special_t *Special_table = _special_table;
|
|
|
|
/**
|
|
* Contains characters which signal the termination of any of the 'special' bareword
|
|
* values.
|
|
*/
|
|
static int _special_endings[0x100] = {
|
|
/* 0x00 */ 0,0,0,0,0,0,0,0,0, /* 0x08 */
|
|
/* 0x09 */ 1 /* <TAB> */, /* 0x09 */
|
|
/* 0x0a */ 1 /* <LF> */, /* 0x0a */
|
|
/* 0x0b */ 0,0, /* 0x0c */
|
|
/* 0x0d */ 1 /* <CR> */, /* 0x0d */
|
|
/* 0x0e */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1f */
|
|
/* 0x20 */ 1 /* <SP> */, /* 0x20 */
|
|
/* 0x21 */ 0, /* 0x21 */
|
|
/* 0x22 */ 1 /* " */, /* 0x22 */
|
|
/* 0x23 */ 0,0,0,0,0,0,0,0,0, /* 0x2b */
|
|
/* 0x2c */ 1 /* , */, /* 0x2c */
|
|
/* 0x2d */ 0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x39 */
|
|
/* 0x3a */ 1 /* : */, /* 0x3a */
|
|
/* 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 */
|
|
/* 0x5b */ 1 /* [ */, /* 0x5b */
|
|
/* 0x5c */ 1 /* \ */, /* 0x5c */
|
|
/* 0x5d */ 1 /* ] */, /* 0x5d */
|
|
/* 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 */
|
|
/* 0x7b */ 1 /* { */, /* 0x7b */
|
|
/* 0x7c */ 0, /* 0x7c */
|
|
/* 0x7d */ 1 /* } */, /* 0x7d */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 0xfe */ 0 /* 0xfe */
|
|
};
|
|
static int *Special_Endings = _special_endings;
|
|
|
|
/**
|
|
* Contains allowable whitespace.
|
|
*/
|
|
static int _allowed_whitespace[0x100] = {
|
|
/* 0x00 */ 0,0,0,0,0,0,0,0,0, /* 0x08 */
|
|
/* 0x09 */ 1 /* <TAB> */, /* 0x09 */
|
|
/* 0x0a */ 1 /* <LF> */, /* 0x0a */
|
|
/* 0x0b */ 0,0, /* 0x0c */
|
|
/* 0x0d */ 1 /* <CR> */, /* 0x0d */
|
|
/* 0x0e */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1f */
|
|
/* 0x20 */ 1 /* <SP> */, /* 0x20 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
};
|
|
static int *Allowed_Whitespace = _allowed_whitespace;
|
|
|
|
/**
|
|
* Allowable two-character 'common' escapes:
|
|
*/
|
|
static int _allowed_escapes[0x100] = {
|
|
/* 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 */
|
|
/* 0x20 */ 0,0, /* 0x21 */
|
|
/* 0x22 */ 1 /* <"> */, /* 0x22 */
|
|
/* 0x23 */ 0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2e */
|
|
/* 0x2f */ 1 /* </> */, /* 0x2f */
|
|
/* 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 */
|
|
/* 0x50 */ 0,0,0,0,0,0,0,0,0,0,0,0, /* 0x5b */
|
|
/* 0x5c */ 1 /* <\> */, /* 0x5c */
|
|
/* 0x5d */ 0,0,0,0,0, /* 0x61 */
|
|
/* 0x62 */ 1 /* <b> */, /* 0x62 */
|
|
/* 0x63 */ 0,0,0, /* 0x65 */
|
|
/* 0x66 */ 1 /* <f> */, /* 0x66 */
|
|
/* 0x67 */ 0,0,0,0,0,0,0, /* 0x6d */
|
|
/* 0x6e */ 1 /* <n> */, /* 0x6e */
|
|
/* 0x6f */ 0,0,0, /* 0x71 */
|
|
/* 0x72 */ 1 /* <r> */, /* 0x72 */
|
|
/* 0x73 */ 0, /* 0x73 */
|
|
/* 0x74 */ 1 /* <t> */, /* 0x74 */
|
|
/* 0x75 */ 1 /* <u> */, /* 0x75 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 0xf6 */ 0,0,0,0,0,0,0,0,0, /* 0xfe */
|
|
};
|
|
|
|
static int *Allowed_Escapes = _allowed_escapes;
|
|
|
|
|
|
static unsigned char _escape_maps[0x100] = {
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 0x60 */ 0,0, /* 0x61 */
|
|
/* 0x62 */ 8 /* <b> */, /* 0x62 */
|
|
/* 0x63 */ 0,0,0, /* 0x65 */
|
|
/* 0x66 */ 12 /* <f> */, /* 0x66 */
|
|
/* 0x67 */ 0,0,0,0,0,0,0, /* 0x6d */
|
|
/* 0x6e */ 10 /* <n> */, /* 0x6e */
|
|
/* 0x6f */ 0,0,0, /* 0x71 */
|
|
/* 0x72 */ 13 /* <r> */, /* 0x72 */
|
|
/* 0x73 */ 0, /* 0x73 */
|
|
/* 0x74 */ 9 /* <t> */, /* 0x74 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 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 */
|
|
/* 0xf5 */ 0,0,0,0,0,0,0,0,0,0 /* 0xfe */
|
|
};
|
|
|
|
static unsigned char *Escape_Maps = _escape_maps;
|
|
|
|
|