hyung-hwan
99959cf35d
All checks were successful
continuous-integration/drone/push Build is passing
changed multiple open functions to accept hawk_errinfo_t* instead of hawk_errnum_t*
983 lines
25 KiB
C
983 lines
25 KiB
C
/*
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Copyright (c) 2006-2020 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <hawk-chr.h>
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#include "hawk-prv.h"
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#include "json-prv.h"
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#define HAWK_JSON_TOKEN_NAME_ALIGN (64)
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/* ========================================================================= */
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static void clear_token (hawk_json_t* json)
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{
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json->tok.len = 0;
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if (json->tok_capa > 0) json->tok.ptr[json->tok.len] = HAWK_T('\0');
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}
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static int add_char_to_token (hawk_json_t* json, hawk_ooch_t ch)
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{
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if (json->tok.len >= json->tok_capa)
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{
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hawk_ooch_t* tmp;
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hawk_oow_t newcapa;
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newcapa = HAWK_ALIGN_POW2(json->tok.len + 2, HAWK_JSON_TOKEN_NAME_ALIGN); /* +2 here because of -1 when setting newcapa */
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tmp = (hawk_ooch_t*)hawk_json_reallocmem(json, json->tok.ptr, newcapa * HAWK_SIZEOF(*tmp));
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if (!tmp) return -1;
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json->tok_capa = newcapa - 1; /* -1 to secure space for terminating null */
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json->tok.ptr = tmp;
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}
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json->tok.ptr[json->tok.len++] = ch;
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json->tok.ptr[json->tok.len] = HAWK_T('\0');
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return 0;
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}
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static int add_chars_to_token (hawk_json_t* json, const hawk_ooch_t* ptr, hawk_oow_t len)
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{
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hawk_oow_t i;
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if (json->tok_capa - json->tok.len > len)
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{
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hawk_ooch_t* tmp;
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hawk_oow_t newcapa;
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newcapa = HAWK_ALIGN_POW2(json->tok.len + len + 1, HAWK_JSON_TOKEN_NAME_ALIGN);
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tmp = (hawk_ooch_t*)hawk_json_reallocmem(json, json->tok.ptr, newcapa * HAWK_SIZEOF(*tmp));
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if (!tmp) return -1;
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json->tok_capa = newcapa - 1;
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json->tok.ptr = tmp;
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}
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for (i = 0; i < len; i++)
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json->tok.ptr[json->tok.len++] = ptr[i];
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json->tok.ptr[json->tok.len] = HAWK_T('\0');
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return 0;
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}
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static HAWK_INLINE hawk_ooch_t unescape (hawk_ooch_t c)
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{
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switch (c)
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{
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case HAWK_T('a'): return HAWK_T('\a');
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case HAWK_T('b'): return HAWK_T('\b');
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case HAWK_T('f'): return HAWK_T('\f');
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case HAWK_T('n'): return HAWK_T('\n');
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case HAWK_T('r'): return HAWK_T('\r');
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case HAWK_T('t'): return HAWK_T('\t');
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case HAWK_T('v'): return HAWK_T('\v');
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default: return c;
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}
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}
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/* ========================================================================= */
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static int push_state (hawk_json_t* json, hawk_json_state_t state)
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{
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hawk_json_state_node_t* ss;
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ss = (hawk_json_state_node_t*)hawk_json_callocmem(json, HAWK_SIZEOF(*ss));
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if (!ss) return -1;
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ss->state = state;
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ss->next = json->state_stack;
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json->state_stack = ss;
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return 0;
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}
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static void pop_state (hawk_json_t* json)
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{
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hawk_json_state_node_t* ss;
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ss = json->state_stack;
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HAWK_ASSERT(ss != HAWK_NULL && ss != &json->state_top);
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json->state_stack = ss->next;
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if (json->state_stack->state == HAWK_JSON_STATE_IN_ARRAY)
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{
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json->state_stack->u.ia.got_value = 1;
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}
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else if (json->state_stack->state == HAWK_JSON_STATE_IN_DIC)
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{
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json->state_stack->u.id.state++;
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}
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/* TODO: don't free this. move it to the free list? */
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hawk_json_freemem (json, ss);
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}
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static void pop_all_states (hawk_json_t* json)
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{
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while (json->state_stack != &json->state_top) pop_state (json);
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}
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/* ========================================================================= */
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static int invoke_data_inst (hawk_json_t* json, hawk_json_inst_t inst)
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{
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if (json->state_stack->state == HAWK_JSON_STATE_IN_DIC && json->state_stack->u.id.state == 1)
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{
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if (inst != HAWK_JSON_INST_STRING)
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{
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hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "dictionary key not a string - %.*js", json->tok.len, json->tok.ptr);
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return -1;
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}
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inst = HAWK_JSON_INST_KEY;
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}
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if (json->prim.instcb(json, inst, &json->tok) <= -1) return -1;
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return 0;
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}
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static int handle_string_value_char (hawk_json_t* json, hawk_ooci_t c)
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{
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int ret = 1;
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if (json->state_stack->u.sv.escaped == 3)
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{
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if (c >= '0' && c <= '7')
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{
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json->state_stack->u.sv.acc = json->state_stack->u.sv.acc * 8 + c - '0';
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json->state_stack->u.sv.digit_count++;
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if (json->state_stack->u.sv.digit_count >= json->state_stack->u.sv.escaped) goto add_sv_acc;
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}
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else
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{
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ret = 0;
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goto add_sv_acc;
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}
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}
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else if (json->state_stack->u.sv.escaped >= 2)
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{
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if (c >= '0' && c <= '9')
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{
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json->state_stack->u.sv.acc = json->state_stack->u.sv.acc * 16 + c - '0';
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json->state_stack->u.sv.digit_count++;
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if (json->state_stack->u.sv.digit_count >= json->state_stack->u.sv.escaped) goto add_sv_acc;
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}
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else if (c >= 'a' && c <= 'f')
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{
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json->state_stack->u.sv.acc = json->state_stack->u.sv.acc * 16 + c - 'a' + 10;
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json->state_stack->u.sv.digit_count++;
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if (json->state_stack->u.sv.digit_count >= json->state_stack->u.sv.escaped) goto add_sv_acc;
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}
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else if (c >= 'A' && c <= 'F')
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{
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json->state_stack->u.sv.acc = json->state_stack->u.sv.acc * 16 + c - 'A' + 10;
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json->state_stack->u.sv.digit_count++;
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if (json->state_stack->u.sv.digit_count >= json->state_stack->u.sv.escaped) goto add_sv_acc;
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}
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else
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{
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ret = 0;
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add_sv_acc:
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#if defined(HAWK_OOCH_IS_UCH)
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if (add_char_to_token(json, json->state_stack->u.sv.acc) <= -1) return -1;
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#else
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/* convert the character to utf8 */
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{
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hawk_bch_t bcsbuf[HAWK_MBLEN_MAX];
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hawk_oow_t n;
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n = json->_gem.cmgr->uctobc(json->state_stack->u.sv.acc, bcsbuf, HAWK_COUNTOF(bcsbuf));
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if (n == 0 || n > HAWK_COUNTOF(bcsbuf))
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{
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/* illegal character or buffer to small */
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hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EECERR, "unable to convert %jc", json->state_stack->u.sv.acc);
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return -1;
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}
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if (add_chars_to_token(json, bcsbuf, n) <= -1) return -1;
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}
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#endif
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json->state_stack->u.sv.escaped = 0;
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}
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}
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else if (json->state_stack->u.sv.escaped == 1)
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{
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if (c >= '0' && c <= '8')
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{
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json->state_stack->u.sv.escaped = 3;
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json->state_stack->u.sv.digit_count = 0;
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json->state_stack->u.sv.acc = c - '0';
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}
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else if (c == 'x')
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{
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json->state_stack->u.sv.escaped = 2;
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json->state_stack->u.sv.digit_count = 0;
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json->state_stack->u.sv.acc = 0;
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}
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else if (c == 'u')
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{
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json->state_stack->u.sv.escaped = 4;
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json->state_stack->u.sv.digit_count = 0;
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json->state_stack->u.sv.acc = 0;
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}
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else if (c == 'U')
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{
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json->state_stack->u.sv.escaped = 8;
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json->state_stack->u.sv.digit_count = 0;
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json->state_stack->u.sv.acc = 0;
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}
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else
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{
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json->state_stack->u.sv.escaped = 0;
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if (add_char_to_token(json, unescape(c)) <= -1) return -1;
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}
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}
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else if (c == '\\')
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{
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json->state_stack->u.sv.escaped = 1;
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}
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else if (c == '\"')
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{
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pop_state (json);
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if (invoke_data_inst(json, HAWK_JSON_INST_STRING) <= -1) return -1;
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}
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else
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{
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if (add_char_to_token(json, c) <= -1) return -1;
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}
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return ret;
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}
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static int handle_character_value_char (hawk_json_t* json, hawk_ooci_t c)
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{
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/* The real JSON dones't support character literal. this is HCL's own extension. */
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int ret = 1;
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if (json->state_stack->u.cv.escaped == 3)
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{
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if (c >= '0' && c <= '7')
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{
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json->state_stack->u.cv.acc = json->state_stack->u.cv.acc * 8 + c - '0';
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json->state_stack->u.cv.digit_count++;
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if (json->state_stack->u.cv.digit_count >= json->state_stack->u.cv.escaped) goto add_cv_acc;
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}
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else
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{
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ret = 0;
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goto add_cv_acc;
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}
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}
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if (json->state_stack->u.cv.escaped >= 2)
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{
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if (c >= '0' && c <= '9')
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{
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json->state_stack->u.cv.acc = json->state_stack->u.cv.acc * 16 + c - '0';
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json->state_stack->u.cv.digit_count++;
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if (json->state_stack->u.cv.digit_count >= json->state_stack->u.cv.escaped) goto add_cv_acc;
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}
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else if (c >= 'a' && c <= 'f')
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{
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json->state_stack->u.cv.acc = json->state_stack->u.cv.acc * 16 + c - 'a' + 10;
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json->state_stack->u.cv.digit_count++;
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if (json->state_stack->u.cv.digit_count >= json->state_stack->u.cv.escaped) goto add_cv_acc;
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}
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else if (c >= 'A' && c <= 'F')
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{
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json->state_stack->u.cv.acc = json->state_stack->u.cv.acc * 16 + c - 'A' + 10;
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json->state_stack->u.cv.digit_count++;
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if (json->state_stack->u.cv.digit_count >= json->state_stack->u.cv.escaped) goto add_cv_acc;
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}
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else
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{
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ret = 0;
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add_cv_acc:
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if (add_char_to_token(json, json->state_stack->u.cv.acc) <= -1) return -1;
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json->state_stack->u.cv.escaped = 0;
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}
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}
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else if (json->state_stack->u.cv.escaped == 1)
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{
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if (c >= '0' && c <= '8')
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{
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json->state_stack->u.cv.escaped = 3;
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json->state_stack->u.cv.digit_count = 0;
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json->state_stack->u.cv.acc = c - '0';
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}
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else if (c == 'x')
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{
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json->state_stack->u.cv.escaped = 2;
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json->state_stack->u.cv.digit_count = 0;
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json->state_stack->u.cv.acc = 0;
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}
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else if (c == 'u')
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{
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json->state_stack->u.cv.escaped = 4;
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json->state_stack->u.cv.digit_count = 0;
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json->state_stack->u.cv.acc = 0;
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}
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else if (c == 'U')
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{
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json->state_stack->u.cv.escaped = 8;
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json->state_stack->u.cv.digit_count = 0;
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json->state_stack->u.cv.acc = 0;
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}
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else
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{
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json->state_stack->u.cv.escaped = 0;
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if (add_char_to_token(json, unescape(c)) <= -1) return -1;
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}
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}
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else if (c == '\\')
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{
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json->state_stack->u.cv.escaped = 1;
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}
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else if (c == '\'')
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{
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pop_state (json);
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if (json->tok.len < 1)
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{
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hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "no character in a character literal");
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return -1;
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}
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if (invoke_data_inst(json, HAWK_JSON_INST_CHARACTER) <= -1) return -1;
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}
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else
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{
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if (add_char_to_token(json, c) <= -1) return -1;
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}
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if (json->tok.len > 1)
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{
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hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "too many characters in a character literal - %.*js", (int)json->tok.len, json->tok.ptr);
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return -1;
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}
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return ret;
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}
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static int handle_numeric_value_char (hawk_json_t* json, hawk_ooci_t c)
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{
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if (hawk_is_ooch_digit(c) || (json->tok.len == 0 && (c == '+' || c == '-')))
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{
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if (add_char_to_token(json, c) <= -1) return -1;
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return 1;
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}
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else if (!json->state_stack->u.nv.dotted && c == '.' &&
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json->tok.len > 0 && hawk_is_ooch_digit(json->tok.ptr[json->tok.len - 1]))
|
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{
|
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if (add_char_to_token(json, c) <= -1) return -1;
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json->state_stack->u.nv.dotted = 1;
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return 1;
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}
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pop_state (json);
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HAWK_ASSERT(json->tok.len > 0);
|
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if (!hawk_is_ooch_digit(json->tok.ptr[json->tok.len - 1]))
|
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{
|
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hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "invalid numeric value - %.*js", (int)json->tok.len, json->tok.ptr);
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return -1;
|
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}
|
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if (invoke_data_inst(json, HAWK_JSON_INST_NUMBER) <= -1) return -1;
|
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return 0; /* start over */
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}
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static int handle_word_value_char (hawk_json_t* json, hawk_ooci_t c)
|
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{
|
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hawk_json_inst_t inst;
|
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|
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if (hawk_is_ooch_alpha(c))
|
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{
|
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if (add_char_to_token(json, c) <= -1) return -1;
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return 1;
|
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}
|
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|
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pop_state (json);
|
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|
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if (hawk_comp_oochars_bcstr(json->tok.ptr, json->tok.len, "null", 0) == 0) inst = HAWK_JSON_INST_NIL;
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else if (hawk_comp_oochars_bcstr(json->tok.ptr, json->tok.len, "true", 0) == 0) inst = HAWK_JSON_INST_TRUE;
|
|
else if (hawk_comp_oochars_bcstr(json->tok.ptr, json->tok.len, "false", 0) == 0) inst = HAWK_JSON_INST_FALSE;
|
|
else
|
|
{
|
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hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "invalid word value - %.*js", json->tok.len, json->tok.ptr);
|
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return -1;
|
|
}
|
|
|
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if (invoke_data_inst(json, inst) <= -1) return -1;
|
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return 0; /* start over */
|
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}
|
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|
|
/* ========================================================================= */
|
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|
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static int handle_start_char (hawk_json_t* json, hawk_ooci_t c)
|
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{
|
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if (c == '[')
|
|
{
|
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if (push_state(json, HAWK_JSON_STATE_IN_ARRAY) <= -1) return -1;
|
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json->state_stack->u.ia.got_value = 0;
|
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if (json->prim.instcb(json, HAWK_JSON_INST_START_ARRAY, HAWK_NULL) <= -1) return -1;
|
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return 1;
|
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}
|
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else if (c == '{')
|
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{
|
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if (push_state(json, HAWK_JSON_STATE_IN_DIC) <= -1) return -1;
|
|
json->state_stack->u.id.state = 0;
|
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if (json->prim.instcb(json, HAWK_JSON_INST_START_DIC, HAWK_NULL) <= -1) return -1;
|
|
return 1;
|
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}
|
|
else if (hawk_is_ooch_space(c))
|
|
{
|
|
/* do nothing */
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "not starting with [ or { - %jc", (hawk_ooch_t)c);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static int handle_char_in_array (hawk_json_t* json, hawk_ooci_t c)
|
|
{
|
|
if (c == ']')
|
|
{
|
|
if (json->prim.instcb(json, HAWK_JSON_INST_END_ARRAY, HAWK_NULL) <= -1) return -1;
|
|
pop_state (json);
|
|
return 1;
|
|
}
|
|
else if (c == ',')
|
|
{
|
|
if (!json->state_stack->u.ia.got_value)
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "redundant comma in array - %jc", (hawk_ooch_t)c);
|
|
return -1;
|
|
}
|
|
json->state_stack->u.ia.got_value = 0;
|
|
return 1;
|
|
}
|
|
else if (hawk_is_ooch_space(c))
|
|
{
|
|
/* do nothing */
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
if (json->state_stack->u.ia.got_value)
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "comma required in array - %jc", (hawk_ooch_t)c);
|
|
return -1;
|
|
}
|
|
|
|
if (c == '\"')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_STRING_VALUE) <= -1) return -1;
|
|
clear_token (json);
|
|
return 1;
|
|
}
|
|
else if (c == '\'')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_CHARACTER_VALUE) <= -1) return -1;
|
|
clear_token (json);
|
|
return 1;
|
|
}
|
|
/* TOOD: else if (c == '#') HCL radixed number
|
|
*/
|
|
else if (hawk_is_ooch_digit(c) || c == '+' || c == '-')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_NUMERIC_VALUE) <= -1) return -1;
|
|
clear_token (json);
|
|
json->state_stack->u.nv.dotted = 0;
|
|
return 0; /* start over */
|
|
}
|
|
else if (hawk_is_ooch_alpha(c))
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_WORD_VALUE) <= -1) return -1;
|
|
clear_token (json);
|
|
return 0; /* start over */
|
|
}
|
|
else if (c == '[')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_ARRAY) <= -1) return -1;
|
|
json->state_stack->u.ia.got_value = 0;
|
|
if (json->prim.instcb(json, HAWK_JSON_INST_START_ARRAY, HAWK_NULL) <= -1) return -1;
|
|
return 1;
|
|
}
|
|
else if (c == '{')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_DIC) <= -1) return -1;
|
|
json->state_stack->u.id.state = 0;
|
|
if (json->prim.instcb(json, HAWK_JSON_INST_START_DIC, HAWK_NULL) <= -1) return -1;
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "wrong character inside array - %jc[%d]", (hawk_ooch_t)c, (int)c);
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int handle_char_in_dic (hawk_json_t* json, hawk_ooci_t c)
|
|
{
|
|
if (c == '}')
|
|
{
|
|
if (json->prim.instcb(json, HAWK_JSON_INST_END_DIC, HAWK_NULL) <= -1) return -1;
|
|
pop_state (json);
|
|
return 1;
|
|
}
|
|
else if (c == ':')
|
|
{
|
|
if (json->state_stack->u.id.state != 1)
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "redundant colon in dictionary - %jc", (hawk_ooch_t)c);
|
|
return -1;
|
|
}
|
|
json->state_stack->u.id.state++;
|
|
return 1;
|
|
}
|
|
else if (c == ',')
|
|
{
|
|
if (json->state_stack->u.id.state != 3)
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "redundant comma in dicitonary - %jc", (hawk_ooch_t)c);
|
|
return -1;
|
|
}
|
|
json->state_stack->u.id.state = 0;
|
|
return 1;
|
|
}
|
|
else if (hawk_is_ooch_space(c))
|
|
{
|
|
/* do nothing */
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
if (json->state_stack->u.id.state == 1)
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "colon required in dicitonary - %jc", (hawk_ooch_t)c);
|
|
return -1;
|
|
}
|
|
else if (json->state_stack->u.id.state == 3)
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "comma required in dicitonary - %jc", (hawk_ooch_t)c);
|
|
return -1;
|
|
}
|
|
|
|
if (c == '\"')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_STRING_VALUE) <= -1) return -1;
|
|
clear_token (json);
|
|
return 1;
|
|
}
|
|
else if (c == '\'')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_CHARACTER_VALUE) <= -1) return -1;
|
|
clear_token (json);
|
|
return 1;
|
|
}
|
|
/* TOOD: else if (c == '#') HCL radixed number
|
|
*/
|
|
else if (hawk_is_ooch_digit(c) || c == '+' || c == '-')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_NUMERIC_VALUE) <= -1) return -1;
|
|
clear_token (json);
|
|
json->state_stack->u.nv.dotted = 0;
|
|
return 0; /* start over */
|
|
}
|
|
else if (hawk_is_ooch_alpha(c))
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_WORD_VALUE) <= -1) return -1;
|
|
clear_token (json);
|
|
return 0; /* start over */
|
|
}
|
|
else if (c == '[')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_ARRAY) <= -1) return -1;
|
|
json->state_stack->u.ia.got_value = 0;
|
|
if (json->prim.instcb(json, HAWK_JSON_INST_START_ARRAY, HAWK_NULL) <= -1) return -1;
|
|
return 1;
|
|
}
|
|
else if (c == '{')
|
|
{
|
|
if (push_state(json, HAWK_JSON_STATE_IN_DIC) <= -1) return -1;
|
|
json->state_stack->u.id.state = 0;
|
|
if (json->prim.instcb(json, HAWK_JSON_INST_START_DIC, HAWK_NULL) <= -1) return -1;
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINVAL, "wrong character inside dictionary - %jc[%d]", (hawk_ooch_t)c, (int)c);
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
|
|
static int handle_char (hawk_json_t* json, hawk_ooci_t c)
|
|
{
|
|
int x;
|
|
|
|
start_over:
|
|
if (c == HAWK_OOCI_EOF)
|
|
{
|
|
if (json->state_stack->state == HAWK_JSON_STATE_START)
|
|
{
|
|
/* no input data */
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
hawk_json_seterrnum(json, HAWK_NULL, HAWK_EEOF);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
switch (json->state_stack->state)
|
|
{
|
|
case HAWK_JSON_STATE_START:
|
|
x = handle_start_char(json, c);
|
|
break;
|
|
|
|
case HAWK_JSON_STATE_IN_ARRAY:
|
|
x = handle_char_in_array(json, c);
|
|
break;
|
|
|
|
case HAWK_JSON_STATE_IN_DIC:
|
|
x = handle_char_in_dic(json, c);
|
|
break;
|
|
|
|
case HAWK_JSON_STATE_IN_WORD_VALUE:
|
|
x = handle_word_value_char(json, c);
|
|
break;
|
|
|
|
case HAWK_JSON_STATE_IN_STRING_VALUE:
|
|
x = handle_string_value_char(json, c);
|
|
break;
|
|
|
|
case HAWK_JSON_STATE_IN_CHARACTER_VALUE:
|
|
x = handle_character_value_char(json, c);
|
|
break;
|
|
|
|
case HAWK_JSON_STATE_IN_NUMERIC_VALUE:
|
|
x = handle_numeric_value_char(json, c);
|
|
break;
|
|
|
|
default:
|
|
hawk_json_seterrbfmt(json, HAWK_NULL, HAWK_EINTERN, "internal error - must not be called for state %d", (int)json->state_stack->state);
|
|
return -1;
|
|
}
|
|
|
|
if (x <= -1) return -1;
|
|
if (x == 0) goto start_over;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
|
|
static int feed_json_data_b (hawk_json_t* json, const hawk_bch_t* data, hawk_oow_t len, hawk_oow_t* xlen)
|
|
{
|
|
const hawk_bch_t* ptr;
|
|
const hawk_bch_t* end;
|
|
|
|
ptr = data;
|
|
end = ptr + len;
|
|
|
|
while (ptr < end)
|
|
{
|
|
hawk_ooci_t c;
|
|
|
|
#if defined(HAWK_OOCH_IS_UCH)
|
|
hawk_ooch_t uc;
|
|
hawk_oow_t bcslen;
|
|
hawk_oow_t n;
|
|
|
|
bcslen = end - ptr;
|
|
n = json->_gem.cmgr->bctouc(ptr, bcslen, &uc);
|
|
if (n == 0)
|
|
{
|
|
/* invalid sequence */
|
|
uc = *ptr;
|
|
n = 1;
|
|
}
|
|
else if (n > bcslen)
|
|
{
|
|
/* incomplete sequence */
|
|
*xlen = ptr - data; /* didn't manage to process in full */
|
|
return 0; /* feed more for incomplete sequence */
|
|
}
|
|
|
|
ptr += n;
|
|
c = uc;
|
|
#else
|
|
c = *ptr++;
|
|
#endif
|
|
|
|
/* handle a single character */
|
|
if (handle_char(json, c) <= -1) goto oops;
|
|
}
|
|
|
|
*xlen = ptr - data;
|
|
return 1;
|
|
|
|
oops:
|
|
/* TODO: compute the number of processed bytes so far and return it via a parameter??? */
|
|
/*printf ("feed oops....\n");*/
|
|
return -1;
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
|
|
static int feed_json_data_u (hawk_json_t* json, const hawk_uch_t* data, hawk_oow_t len, hawk_oow_t* xlen)
|
|
{
|
|
const hawk_uch_t* ptr;
|
|
const hawk_uch_t* end;
|
|
|
|
ptr = data;
|
|
end = ptr + len;
|
|
|
|
while (ptr < end)
|
|
{
|
|
hawk_ooci_t c;
|
|
|
|
#if defined(HAWK_OOCH_IS_UCH)
|
|
c = *ptr++;
|
|
/* handle a single character */
|
|
if (handle_char(json, c) <= -1) goto oops;
|
|
#else
|
|
hawk_bch_t bcsbuf[HAWK_BCSIZE_MAX];
|
|
hawk_oow_t mlen = 0;
|
|
hawk_oow_t n, i;
|
|
|
|
n = json->_gem.cmgr->uctobc(*ptr++, bcsbuf, HAWK_COUNTOF(bcsbuf));
|
|
if (n == 0) goto oops; // illegal character
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
if (handle_char(json, bcsbuf[i]) <= -1) goto oops;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
*xlen = ptr - data;
|
|
return 1;
|
|
|
|
oops:
|
|
/* TODO: compute the number of processed bytes so far and return it via a parameter??? */
|
|
/*printf ("feed oops....\n");*/
|
|
return -1;
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
|
|
|
|
hawk_json_t* hawk_json_open (hawk_mmgr_t* mmgr, hawk_oow_t xtnsize, hawk_cmgr_t* cmgr, hawk_json_prim_t* prim, hawk_errinf_t* errinf)
|
|
{
|
|
hawk_json_t* json;
|
|
|
|
json = (hawk_json_t*)HAWK_MMGR_ALLOC(mmgr, HAWK_SIZEOF(hawk_json_t) + xtnsize);
|
|
if (!json)
|
|
{
|
|
if (errinf)
|
|
{
|
|
HAWK_MEMSET(errinf, 0, HAWK_SIZEOF(*errinf));
|
|
errinf->num = HAWK_ENOMEM;
|
|
hawk_copy_oocstr(errinf->msg, HAWK_COUNTOF(errinf->msg), hawk_dfl_errstr(errinf->num));
|
|
}
|
|
return HAWK_NULL;
|
|
}
|
|
|
|
HAWK_MEMSET(json, 0, HAWK_SIZEOF(*json) + xtnsize);
|
|
json->_instsize = HAWK_SIZEOF(*json);
|
|
json->_gem.mmgr = mmgr;
|
|
json->_gem.cmgr = cmgr;
|
|
|
|
/* initialize error handling fields */
|
|
json->_gem.errnum = HAWK_ENOERR;
|
|
json->_gem.errmsg[0] = '\0';
|
|
json->_gem.errloc.line = 0;
|
|
json->_gem.errloc.colm = 0;
|
|
json->_gem.errloc.file = HAWK_NULL;
|
|
json->_gem.errstr = hawk_dfl_errstr;
|
|
|
|
json->prim = *prim;
|
|
json->state_top.state = HAWK_JSON_STATE_START;
|
|
json->state_top.next = HAWK_NULL;
|
|
json->state_stack = &json->state_top;
|
|
|
|
return json;
|
|
}
|
|
|
|
void hawk_json_close (hawk_json_t* json)
|
|
{
|
|
pop_all_states(json);
|
|
if (json->tok.ptr) hawk_json_freemem(json, json->tok.ptr);
|
|
HAWK_MMGR_FREE(hawk_json_getmmgr(json), json);
|
|
}
|
|
|
|
int hawk_json_setoption (hawk_json_t* json, hawk_json_option_t id, const void* value)
|
|
{
|
|
switch (id)
|
|
{
|
|
case HAWK_JSON_TRAIT:
|
|
json->cfg.trait = *(const int*)value;
|
|
return 0;
|
|
}
|
|
|
|
hawk_json_seterrnum(json, HAWK_NULL, HAWK_EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
int hawk_json_getoption (hawk_json_t* json, hawk_json_option_t id, void* value)
|
|
{
|
|
switch (id)
|
|
{
|
|
case HAWK_JSON_TRAIT:
|
|
*(int*)value = json->cfg.trait;
|
|
return 0;
|
|
};
|
|
|
|
hawk_json_seterrnum(json, HAWK_NULL, HAWK_EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
|
|
hawk_errstr_t hawk_json_geterrstr (hawk_json_t* json)
|
|
{
|
|
return json->_gem.errstr;
|
|
}
|
|
|
|
void hawk_json_seterrbfmt (hawk_json_t* json, const hawk_loc_t* errloc, hawk_errnum_t errnum, const hawk_bch_t* fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
hawk_gem_seterrbvfmt(hawk_json_getgem(json), errloc, errnum, fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
void hawk_json_seterrufmt (hawk_json_t* json, const hawk_loc_t* errloc, hawk_errnum_t errnum, const hawk_uch_t* fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
hawk_gem_seterruvfmt(hawk_json_getgem(json), errloc, errnum, fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
|
|
void hawk_json_seterrbvfmt (hawk_json_t* json, const hawk_loc_t* errloc, hawk_errnum_t errnum, const hawk_bch_t* errfmt, va_list ap)
|
|
{
|
|
hawk_gem_seterrbvfmt (hawk_json_getgem(json), errloc, errnum, errfmt, ap);
|
|
}
|
|
|
|
void hawk_json_seterruvfmt (hawk_json_t* json, const hawk_loc_t* errloc, hawk_errnum_t errnum, const hawk_uch_t* errfmt, va_list ap)
|
|
{
|
|
hawk_gem_seterruvfmt (hawk_json_getgem(json), errloc, errnum, errfmt, ap);
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
void* hawk_json_allocmem (hawk_json_t* json, hawk_oow_t size)
|
|
{
|
|
void* ptr;
|
|
|
|
ptr = HAWK_MMGR_ALLOC(hawk_json_getmmgr(json), size);
|
|
if (!ptr) hawk_json_seterrnum(json, HAWK_NULL, HAWK_ENOMEM);
|
|
return ptr;
|
|
}
|
|
|
|
void* hawk_json_callocmem (hawk_json_t* json, hawk_oow_t size)
|
|
{
|
|
void* ptr;
|
|
|
|
ptr = HAWK_MMGR_ALLOC(hawk_json_getmmgr(json), size);
|
|
if (!ptr) hawk_json_seterrnum(json, HAWK_NULL, HAWK_ENOMEM);
|
|
else HAWK_MEMSET(ptr, 0, size);
|
|
return ptr;
|
|
}
|
|
|
|
void* hawk_json_reallocmem (hawk_json_t* json, void* ptr, hawk_oow_t size)
|
|
{
|
|
ptr = HAWK_MMGR_REALLOC(hawk_json_getmmgr(json), ptr, size);
|
|
if (!ptr) hawk_json_seterrnum(json, HAWK_NULL, HAWK_ENOMEM);
|
|
return ptr;
|
|
}
|
|
|
|
void hawk_json_freemem (hawk_json_t* json, void* ptr)
|
|
{
|
|
HAWK_MMGR_FREE(hawk_json_getmmgr(json), ptr);
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
|
|
hawk_json_state_t hawk_json_getstate (hawk_json_t* json)
|
|
{
|
|
return json->state_stack->state;
|
|
}
|
|
|
|
void hawk_json_reset (hawk_json_t* json)
|
|
{
|
|
/* TODO: reset XXXXXXXXXXXXXXXXXXXXXXXXXXXxxxxx */
|
|
pop_all_states (json);
|
|
HAWK_ASSERT(json->state_stack == &json->state_top);
|
|
json->state_stack->state = HAWK_JSON_STATE_START;
|
|
}
|
|
|
|
int hawk_json_feedbchars (hawk_json_t* json, const hawk_bch_t* ptr, hawk_oow_t len, hawk_oow_t* xlen)
|
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{
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int x;
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hawk_oow_t total, ylen;
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total = 0;
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while (total < len)
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{
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x = feed_json_data_b(json, &ptr[total], len - total, &ylen);
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if (x <= -1) return -1;
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total += ylen;
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if (x == 0) break; /* incomplete sequence encountered */
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}
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*xlen = total;
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return 0;
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}
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int hawk_json_feeduchars (hawk_json_t* json, const hawk_uch_t* ptr, hawk_oow_t len, hawk_oow_t* xlen)
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{
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int x;
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hawk_oow_t total, ylen;
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total = 0;
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while (total < len)
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{
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x = feed_json_data_u(json, &ptr[total], len - total, &ylen);
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if (x <= -1) return -1;
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total += ylen;
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if (x == 0) break; /* incomplete sequence encountered */
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}
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*xlen = total;
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return 0;
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}
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