tjson.cpp

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#ifdef CPLUSPLUS
    #undef CPLUSPLUS
#endif
 
 
#include "tjson.h"
#include "jbxl_state.h"
 
 
// Parser
//
 
tJson*  json_parse(const char* str, int num)
{
    int state = JBXL_JSON_DEFAULT_STATE;
    char* pp = (char*)str;
 
    while(*pp!='{' && *pp!='[' && *pp!='\0') pp++;
    if (*pp=='\0') return NULL;
    if (*pp=='[') state = JBXL_JSON_ARRAY;
 
    tJson* json = new_json_anchor_node();                    // アンカー
 
    // パース
    tJson* node = json_parse_prop(json, pp, num);
    if (node->state<0) return node;
    if (node->state==JBXL_JSON_PARSE_TERM) return node;     // 中途半端な入力
 
    // 元に戻ったか？
    if (json==node) {
        json->state = JBXL_JSON_PARSED;
    }
    else {
        json->state = JBXL_JSON_NOT_CLOSED;
    }
 
    // JSON rootの数
    if (json->next!=NULL && state!=JBXL_JSON_ARRAY) {
        int n = 0;
        node = json->next;
        while(node!=NULL) {
            if (node->ldat.id==JSON_BRACKET_NODE) n++;
            node = node->ysis;
        }
        if (n!=1) json->state = JBXL_JSON_MULTI_ROOT;
    }
    else json->state = state;
 
    return json;
}
 
 
tJson*  json_parse_prop(tJson* json, const char* str, int num)
{
    char*  pp   = (char*)str;
    char*  pt   = NULL;
    tJson* node = NULL;
    tJson* trgt = NULL;
    int  valflg = OFF;
 
    if (json==NULL) {
        json = new_json_anchor_node();
    }
 
    while (*pp!='\0') {
        // 
        if (*pp=='{') {
            //PRINT_MESG("open  { \n");
            pp++;
            //
            if (json->ctrl!=JBXL_JSON_NODE_OPENED) {
                if (valflg==OFF || json->depth<0) {
                    node = new_json_node();
                    node->ldat.id = JSON_BRACKET_NODE;
                    node->ldat.lv = JSON_VALUE_OBJ;
                    json = add_tTree_node(json, node);
                }
                else {
                    json = json->yngr;
                    json->ldat.lv = JSON_VALUE_OBJ;
                }
                valflg = OFF;
            }
            json->ctrl = JBXL_NONE;
 
            // 次の \", \', {, } を見つける
            pt = pp;
            //while (*pt!='\0' && *pt!='\'' && *pt!='\"' && *pt!='{' && *pt!='}') pt++;
            while(*pt!='\0') {
                while(*pt=='\\') pt += 2;
                if (*pt!='\0') {
                    if (*pt=='\'' || *pt=='\"' || *pt=='{' || *pt=='}') break;
                    pt++;
                }
            }
            if (*pt=='\0') {
                json = _json_parse_term(json, NULL, NULL, "{");
                json->ctrl = JBXL_JSON_NODE_OPENED;
                return json;
            }
 
            pp = pt;
            if (*pp=='\"' || *pp=='\'') {
                char ch = '\"';
                if (*pp=='\'') ch = '\''; 
                //
                pt = pp + 1;
                while(*pt!='\0') {
                    while(*pt=='\\') pt += 2;
                    if (*pt!='\0') {
                        if (*pt==ch) break;
                        pt++;
                    }
                }
                if (*pt=='\0') {
                    json = _json_parse_term(json, pp, pt, "{");
                    json->ctrl = JBXL_JSON_NODE_OPENED;
                    return json;
                }
 
                int len = (int)(pt - pp) - 1 ;
                node = new_json_node();
                node->ldat.key = set_Buffer(pp + 1, len);
                node->ldat.id  = JSON_DATA_NODE;
                node->ldat.lv  = JSON_VALUE_NULL;
                trgt = add_tTree_node(json, node);
 
                pt = pt + 1; 
                while(*pt!=',' && *pt!=':' && *pt!='}' && *pt!='\0') pt++; 
                if (*pt=='\0') {
                    json->state = JBXL_JSON_PARSE_TERM;
                    return json; 
                }
                pp = pt;
            }
        }
 
        //
        else if (*pp=='[') {
            //PRINT_MESG("open  [ \n");
            pt = skip_char_pair(pp, '[', ']');
            if (*pt=='\0') {
                json = _json_parse_term(json, pp, pt, "[");
                return json;
            }
            if (valflg==OFF || json->depth<0) { // アンカーのみ
                node = new_json_node();
                node->ldat.id = JSON_ARRAY_NODE;
                node->ldat.lv = JSON_VALUE_ARRAY;
                add_tTree_node(json, node);
            }
            if (json->yngr!=NULL) {
                int len = (int)(pt - pp) + 1;
                Buffer temp = set_Buffer(pp, len);
                json->yngr->ldat.val = pack_Buffer(temp, '\0');
                json->yngr->ldat.lv  = JSON_VALUE_ARRAY;
                free_Buffer(&temp);
            }
            valflg = OFF;
 
            if (num>0 && json->yngr!=NULL) _json_array_parse(json->yngr, num-1);
 
            pt++; 
            while(*pt!=',' && *pt!='}' && *pt!='{' && *pt!='[' && *pt!='\0') pt++;
            if (*pt=='\0') {
                if (json->depth>0) json->state = JBXL_JSON_PARSE_TERM;
                return json;    
            }
            //
            pp = pt;
        }
 
        //
        else if (*pp==',') {
            //PRINT_MESG("next  , \n");
            pt = pp + 1;
            // 次の \", \', {, } を見つける
            //while (*pt!='\0' && *pt!='\'' && *pt!='\"' && *pt!='{' && *pt!='}' && *pt!='[') pt++;
            while(*pt!='\0') {
                while(*pt=='\\') pt += 2;
                if (*pt!='\0') {
                    if (*pt=='\'' || *pt=='\"' || *pt=='{' || *pt=='}' || *pt=='[') break;
                    pt++;
                }
            }
            if (*pt=='\0') {
                json = _json_parse_term(json, NULL, NULL, ",");
                return json;
            }
 
            pp = pt;
            if (*pp=='\"' || *pp=='\'') {
                char ch = '\"';
                if (*pt=='\'') ch = '\''; 
                //
                pt = pp + 1;
                while(*pt!='\0') {
                    while(*pt=='\\') pt += 2;
                    if (*pt!='\0') {
                        if (*pt==ch) break;
                        pt++;
                    }
                }
                if (*pt=='\0') {
                    json = _json_parse_term(json, pp, pt, ",");
                    return json;    
                }
 
                int len = (int)(pt - pp) - 1 ;
                node = new_json_node();
                node->ldat.key = set_Buffer(pp + 1, len);
                node->ldat.id  = JSON_DATA_NODE;
                node->ldat.lv  = JSON_VALUE_NULL;
                trgt = add_tTree_node(json, node);
 
                pt = pt + 1; 
                while(*pt!=',' && *pt!=':' && *pt!='}' && *pt!='\0') pt++; 
                if (*pt=='\0') {
                    json->state = JBXL_JSON_PARSE_TERM;
                    return json;    
                }
                pp = pt;
            }
        }
 
        //
        else if (*pp==':') {
            //PRINT_MESG("next  : \n");
            pt = pp + 1;
            while (*pt==' ') pt++;
            if (*pt=='\0') {
                json = _json_parse_term(json, NULL, NULL, ":");
                return json;
            }
            pp = pt;
 
            if (*pp!='{' && *pp!='[') {
                while(*pt==' ') pt++;
                if (*pt!='\0') while (*pt=='\\') pt += 2;
                //
                if (*pp=='\'' || *pp=='\"') {
                    pt = skip_string_end(pt);
                    if (*pt!='\0') pt++;
                }
                while (*pt!=',' && *pt!='{' && *pt!='}' && *pt!='\0') pt++;
 
                if (*pt=='\0') {
                    json = _json_parse_term(json, pp, pt, ":");
                    return json;    
                }
                pt--;
                while (*pt==' ' || *pt==0x0a || *pt==0x0d) pt--;
 
                int len = (int)(pt - pp) + 1 ;
                Buffer temp = set_Buffer(pp, len);
                if (trgt==NULL) trgt = json->yngr;
                trgt->ldat.val = pack_Buffer(temp, '\0');
                free_Buffer(&temp);
                //
                if (*pp=='\"' || *pp=='\'') trgt->ldat.lv = JSON_VALUE_STR;
                else {
                    char* val = (char*)trgt->ldat.val.buf;
                    if (!strcasecmp("true", val) || !strcasecmp("false", val)) trgt->ldat.lv = JSON_VALUE_BOOL;
                    else {
                        int num = is_number((unsigned char*)val);
                        if      (num==1) trgt->ldat.lv = JSON_VALUE_INT;
                        else if (num==2) trgt->ldat.lv = JSON_VALUE_REAL;
                        else  trgt->ldat.lv = JSON_VALUE_UNRESOLV;
                    }
                }
 
                pt++;
                while (*pt==' ') pt++;
                pp = pt;
            }
            else {
                valflg = ON; // ':{' or ':['
            }
        }
 
        //
        else if (*pp=='}') {
            //PRINT_MESG("close } \n");
            if (json->prev!=NULL) json = json->prev;
            //
            pt = pp = pp + 1;
            while (*pt!=',' && *pt!='}' && *pt!='{' && *pt!='\0') pt++;
            if (*pt=='\0' && json->depth>0) {
                json->state = JBXL_JSON_PARSE_TERM;
                return json;    
            }
            pp = pt;
        }
 
        //
        else {
            pp++;
        }
    }
 
    if (json->ldat.id==JSON_TEMP_NODE) {
        tJson* temp = json->next;
        del_json_node(&json);
        json = temp;
    }
 
    json->state = JBXL_JSON_PARSED;
    return json;
}
 
 
tJson*  _json_array_parse(tJson* json, int num)
{
    char* pp = (char*)(json->ldat.val.buf);
    //
    json = json_array_parse(json, pp, num);
    free_Buffer(&(json->ldat.val));
 
    return json;
}
 
 
tJson*  json_array_parse(tJson* json, const char* str, int num)
{
    char* pp = (char*)str;
    char* pt;
    if (*pp!='[') return json;
 
    if (json==NULL) {
        json = new_json_node();
        json->ldat.id = JSON_TEMP_NODE;
        json->ldat.lv = JSON_VALUE_NULL;
    }
    else {
        json->ldat.id = JSON_ARRAY_NODE;
        json->ldat.lv = JSON_VALUE_ARRAY;
    }
 
    //
    int depth = 1;
    pp++;
    while (*pp!='\0') {
        while (*pp==' ') pp++;
        if (*pp!='\0') while (*pp=='\\') pp += 2;
 
        //
        if (*pp=='[') {
            pt = skip_char_pair(pp, '[', ']');
 
            tJson* node = new_json_node();
            node->ldat.id = JSON_ARRAY_NODE;
            node->ldat.lv = JSON_VALUE_ARRAY;
            add_tTree_node(json, node);
            //
            if (json->yngr!=NULL) {
                int len = (int)(pt - pp) + 1;
                Buffer temp = set_Buffer(pp, len);
                json->yngr->ldat.val = pack_Buffer(temp, '\0');
                json->yngr->ldat.lv  = JSON_VALUE_ARRAY;
                free_Buffer(&temp);
            }
            if (num>0 && json->yngr!=NULL) _json_array_parse(json->yngr, num-1);
 
            pt++; 
            while(*pt!=',' && *pt!='}' && *pt!='{' && *pt!='[' && *pt!='\0') pt++;
 
            depth++;
            pp = pt + 1;
        }
 
        //
        else if (*pp==']') {
            depth--;
            if (depth==0) break;
            pp++;
        }
 
        //
        else if (*pp=='\'' || *pp=='\"') {
            char ch = *pp;
            pt = pp + 1;
            while (*pt!='\0') {
                while (*pt=='\\') pt += 2;
                if (*pt!='\0') {
                    if (*pt==ch) break;
                    pt++;
                }
            }
 
            if (*pt!='\0') {
                int len = (int)(pt - pp) + 1 ;
                tJson* node = new_json_node();
                Buffer temp    = set_Buffer(pp, len);
                node->ldat.key = make_Buffer_bystr("ARRAY_VALUE");
                node->ldat.val = pack_Buffer(temp, '\0');
                node->ldat.id  = JSON_ARRAY_VALUE_NODE;
                node->ldat.lv  = JSON_VALUE_STR;
                free_Buffer(&temp);
                add_tTree_node(json, node);
            
                pp = pt + 1;
            }
        }
 
        //
        else if (*pp=='{') {
            pt = skip_char_pair(pp, '{', '}');
 
            int len = (int)(pt - pp) + 1 ;
            tJson* node = new_json_node();
            Buffer temp    = set_Buffer(pp, len);
            node->ldat.key = make_Buffer_bystr("ARRAY_VALUE");
            node->ldat.val = pack_Buffer(temp, '\0');
            node->ldat.id  = JSON_ARRAY_VALUE_NODE;
            node->ldat.lv  = JSON_VALUE_OBJ;
            free_Buffer(&temp);
            
            if (num>0) {
                node = json_parse_prop(node, (char*)node->ldat.val.buf, num-1);
                add_tTree_node(json, node);
                del_json_node(&node);           // ノードを詰める
            }
            else {
                add_tTree_node(json, node);
            }
 
            pp = pt + 1;
        }
 
        //
        else if (*pp==',') {
            pp++;
        }
 
        //
        else {
            pt = skip_chars(pp, ",}]");
 
            int len = (int)(pt - pp);
            tJson* node = new_json_node();
            Buffer temp    = set_Buffer(pp, len);
            node->ldat.key = make_Buffer_bystr("ARRAY_VALUE");
            node->ldat.val = pack_Buffer(temp, '\0');
            node->ldat.id  = JSON_ARRAY_VALUE_NODE;
 
            if (*pp=='\"' || *pp=='\'') node->ldat.lv = JSON_VALUE_STR;
            else {
                const char* val = (const char*)node->ldat.val.buf;
                if (!strcasecmp("true", val) || !strcasecmp("false", val)) node->ldat.lv = JSON_VALUE_BOOL;
                else {
                    int num = is_number((unsigned char*)val);
                    if      (num==1) node->ldat.lv = JSON_VALUE_INT;
                    else if (num==2) node->ldat.lv = JSON_VALUE_REAL;
                    else  node->ldat.lv = JSON_VALUE_UNRESOLV;
                }
            }
 
            free_Buffer(&temp);
            add_tTree_node(json, node);
            pp = pt;
        }
    }
 
    return json;
}
 
 
tJson*  _json_parse_term(tJson* json, const char* st, const char* ed, const char* com)
{
    if (json==NULL) return NULL;
 
    json->state = JBXL_JSON_PARSE_TERM;
    if (com!=NULL) {
        json->ldat.val = set_Buffer((void*)com, -1);
        if (st!=NULL && ed!=NULL) {
            int len = (int)(ed - st) + 1;
            cat_b2Buffer((char*)st, &(json->ldat.val), len);
            json->ldat.val.vldsz = (int)strlen((char*)json->ldat.val.buf);
        }
    }    
    return json;
}
 
 
tJson*  json_parse_seq(tJson* json, const char* str, int num)
{
    if (json==NULL) {
        json = json_parse_prop(NULL, str, num);
        return json;
    }
 
    Buffer buf = dup_Buffer(json->ldat.val);
    free_Buffer(&(json->ldat.val));
    cat_s2Buffer((char*)str, &buf);
 
    json->state = JBXL_JSON_DEFAULT_STATE;
    json = json_parse_prop(json, (char*)buf.buf, num);
    free_Buffer(&buf);
 
    return json;
}
 
 
 
// 逆 Parser
//
 
Buffer  json_inverse_parse(tJson* pp, int mode)
{
    int cnt;
    Buffer buf;
 
    buf = init_Buffer();
    if (pp==NULL) return buf;
    if (pp->ldat.id==JSON_ANCHOR_NODE) pp = pp->next;
    if (pp==NULL) return buf;
 
    cnt = count_tTree(pp);
    buf = make_Buffer(cnt*LSDATA);
    if (buf.buf==NULL) return buf;
 
    if (pp->ctrl!=TREE_NOSIS_NODE) while (pp->esis!=NULL) pp = pp->esis;
 
    if (mode==JSON_CRLF_FORMAT) {
        _json_to_Buffer(pp, &buf, CRLF, "");
    }
    else if (mode==JSON_INDENT_FORMAT) {
        _json_to_Buffer(pp, &buf, CRLF, "    ");
    }
    else {
        _json_to_Buffer(pp, &buf, "", "");
    }
 
    return buf;
}
 
 
Buffer  json_inverse_parse_opt(tJson* pp, const char* crlf, const char* space)
{
    int cnt;
    Buffer buf;
 
    buf = init_Buffer();
    if (pp==NULL) return buf;
    if (pp->ldat.id==JSON_ANCHOR_NODE) pp = pp->next;
    if (pp==NULL) return buf;
 
    cnt = count_tTree(pp);
    buf = make_Buffer(cnt*LSDATA);
    if (buf.buf==NULL) return buf;
 
    if (pp->ctrl!=TREE_NOSIS_NODE) while (pp->esis!=NULL) pp = pp->esis;
    _json_to_Buffer(pp, &buf, crlf, space);
 
    return buf;
}
 
 
void  _json_to_Buffer(tJson* pp, Buffer* buf, const char* crlf, const char* space)
{
    if (pp==NULL) return;
    if (buf==NULL || buf->buf==NULL) return;
    //
    if (pp->ldat.id==JSON_ANCHOR_NODE) pp = pp->next;
 
    if (pp!=NULL) {
        if (pp->ctrl!=TREE_NOSIS_NODE) while(pp->esis!=NULL) pp = pp->esis; // 長女から逆パースを開始．
        do {
            int i;
            if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
            //
            if (pp->ldat.id==JSON_BRACKET_NODE) {
                //PRINT_MESG("JSON_BRACKET_NODE\n");
                cat_s2Buffer("{", buf);
                if (pp->next!=NULL) {
                    if (crlf[0]!='\0') cat_s2Buffer(crlf, buf);
                    _json_to_Buffer(pp->next, buf, crlf, space);
                    if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
                }
                //if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
                cat_s2Buffer("}", buf); 
            }
            //
            else if (pp->ldat.id==JSON_DATA_NODE) {
                //PRINT_MESG("JSON_DATA_NODE\n");
                cat_s2Buffer("\"", buf);
                cat_s2Buffer(pp->ldat.key.buf, buf);
                cat_s2Buffer("\"", buf);
                //
                if (pp->ldat.lv==JSON_VALUE_OBJ) {
                    if (space[0]!='\0') cat_s2Buffer(": {", buf);
                    else                cat_s2Buffer(":{",  buf);
                    if (pp->next!=NULL) {
                        if (crlf[0]!='\0') cat_s2Buffer(crlf, buf);
                        _json_to_Buffer(pp->next, buf, crlf, space);
                        if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
                    }
                    //if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
                    cat_s2Buffer("}", buf); 
                }
                else {
                    if (pp->ldat.lv==JSON_VALUE_NULL) {
                        if (space[0]!='\0') cat_s2Buffer(": null", buf);
                        else                cat_s2Buffer(":null",  buf);
                    }
                    else  {
                        if (space[0]!='\0') cat_s2Buffer(": ", buf);
                        else                cat_s2Buffer(":",  buf);   
                        cat_s2Buffer(pp->ldat.val.buf, buf);
                    }
                }
            }
            //
            // array
            else if (pp->ldat.id==JSON_ARRAY_NODE) {
                //PRINT_MESG("JSON_ARRAY_NODE\n");
                if (pp->ldat.key.buf!=NULL) {
                    cat_s2Buffer("\"", buf);
                    cat_s2Buffer(pp->ldat.key.buf, buf);
                    if (space[0]!='\0') cat_s2Buffer("\": ", buf);
                    else                cat_s2Buffer("\":",  buf);   
                }
                if (pp->ldat.val.buf!=NULL) {
                    cat_s2Buffer(pp->ldat.val.buf, buf); 
                }
                else {
                    cat_s2Buffer("[", buf);
                    if (pp->next!=NULL) {
                        if (crlf[0]!='\0') cat_s2Buffer(crlf, buf);
                        _json_to_Buffer(pp->next, buf, crlf, space);
                        if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
                    }
                    //if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
                    cat_s2Buffer("]", buf); 
                }
            }
 
            else if (pp->ldat.id==JSON_ARRAY_VALUE_NODE) {
                //PRINT_MESG("JSON_ARRAY_VALUE_NODE\n");
                if (pp->ldat.lv==JSON_VALUE_OBJ) {
                    if (pp->ldat.val.buf==NULL) {
                        cat_s2Buffer("{", buf);
                        if (pp->next!=NULL) {
                            if (crlf[0]!='\0') cat_s2Buffer(crlf, buf);
                            _json_to_Buffer(pp->next, buf, crlf, space);
                            if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
                        }
                        //if (space[0]!='\0') for(i=0; i<pp->depth; i++) cat_s2Buffer(space, buf);
                        cat_s2Buffer("}", buf); 
                    }
                    else {
                        cat_Buffer(&pp->ldat.val, buf);
                    }
                }
                else {
                    if (pp->ldat.lv==JSON_VALUE_NULL) {
                        cat_s2Buffer("null", buf);
                    }
                    else  {
                        cat_s2Buffer(pp->ldat.val.buf, buf);
                    }
                }
            }
 
            if (pp->ctrl!=TREE_NOSIS_NODE && pp->ysis!=NULL && 
                pp->prev!=NULL && pp->prev->ldat.id!=JSON_ANCHOR_NODE) cat_s2Buffer(",", buf);
            if (crlf[0]!='\0') cat_s2Buffer(crlf, buf);
 
            if (pp->ctrl!=TREE_NOSIS_NODE) pp = pp->ysis;
            else                           pp = NULL;
        } while(pp!=NULL);
    }
 
    return;
}
 
 
void  print_json(FILE* fp, tJson* json, int mode)
{
    Buffer buf = json_inverse_parse(json, mode);
    if (buf.buf!=NULL) {
        fprintf(fp, "%s", buf.buf);
        free_Buffer(&buf);
    }
 
    return;
}
 
 
void  print_json_opt(FILE* fp, tJson* json, const char* crlf, const char* space)
{
    Buffer buf = json_inverse_parse_opt(json, crlf, space);
    if (buf.buf!=NULL) {
        fprintf(fp, "%s", buf.buf);
        free_Buffer(&buf);
    }
 
    return;
}
 
 
 
// Tools
 
tJson*  json_parse_file(const char* fn, int num)
{
    tJson* json = NULL;
    Buffer buf;
 
    buf = read_Buffer_file(fn);
    if (buf.buf!=NULL) {
        json = json_parse((char*)(buf.buf), num);
        free_Buffer(&buf);
    }
 
    return json;
}
 
 
void  json_set_str_val(tJson* json, const char* val)
{
    if (json==NULL || val==NULL) return;
    if (json->ldat.id==JSON_BRACKET_NODE) {
        json = json->next;
        if (json==NULL) return;
    }
 
    Buffer buf = init_Buffer();
    if (val[0]!='"') {
        buf = make_Buffer((int)strlen(val) + 3); // " + " + \0
        copy_s2Buffer("\"", &buf);
        cat_s2Buffer(val, &buf);
    }
    else {
        buf = make_Buffer_bystr(val);
    }
    if (buf.buf[buf.vldsz-1]!='"') {
        cat_s2Buffer("\"", &buf);
    }
 
    copy_Buffer(&buf, &(json->ldat.val));
    json->ldat.lv = JSON_VALUE_STR;
    free_Buffer(&buf);
 
    return;
}
 
 
void  json_set_int_val(tJson* json, int val)
{
    if (json==NULL) return;
    if (json->ldat.id==JSON_BRACKET_NODE) {
        json = json->next;
        if (json==NULL) return;
    }
 
    copy_i2Buffer(val, &(json->ldat.val));
    json->ldat.lv = JSON_VALUE_INT;
    return;
}
 
 
void  json_set_real_val(tJson* json, float val)
{
    if (json==NULL) return;
    if (json->ldat.id==JSON_BRACKET_NODE) {
        json = json->next;
        if (json==NULL) return;
    }
 
    copy_r2Buffer(val, &(json->ldat.val));
    json->ldat.lv = JSON_VALUE_REAL;
    return;
}
 
 
void  json_copy_val(tJson* f_json, tJson* t_json)
{
    if (f_json==NULL || t_json==NULL) return;
    if (f_json->ldat.id==JSON_BRACKET_NODE) {
        f_json = f_json->next;
        if (f_json==NULL) return;
    }
    if (t_json->ldat.id==JSON_BRACKET_NODE) {
        t_json = t_json->next;
        if (t_json==NULL) return;
    }
 
    t_json->ldat.lv = f_json->ldat.lv;
    copy_Buffer(&(f_json->ldat.val), &(t_json->ldat.val));
 
    return;
}
 
 
void  json_copy_data(tJson* f_json, tJson* t_json)
{
    if (f_json==NULL || t_json==NULL) return;
    if (f_json->ldat.id==JSON_BRACKET_NODE) {
        f_json = f_json->next;
        if (f_json==NULL) return;
    }
    if (t_json->ldat.id==JSON_BRACKET_NODE) {
        t_json = t_json->next;
        if (t_json==NULL) return;
    }
 
    t_json->ldat.id = f_json->ldat.id;
    t_json->ldat.lv = f_json->ldat.lv;
    copy_Buffer(&(f_json->ldat.key), &(t_json->ldat.key));
    copy_Buffer(&(f_json->ldat.val), &(t_json->ldat.val));
 
    return;
}
 
 
tJson*  json_insert_child(tJson* parent, tJson* child)
{
    if (parent==NULL || child ==NULL) return NULL;
    if (parent->ldat.id!=JSON_BRACKET_NODE && parent->ldat.lv!=JSON_VALUE_OBJ && parent->ldat.id!=JSON_ARRAY_NODE) return NULL;
    if (child->ldat.id !=JSON_BRACKET_NODE) return NULL;
    
    tJson* ret = NULL;
    //if (parent->ldat.id==JSON_BRACKET_NODE) {
    if (parent->ldat.id==JSON_BRACKET_NODE || parent->ldat.lv==JSON_VALUE_OBJ) {
        tJson* cp = child->next;
        while (cp!=NULL) {
            add_tTree(parent, cp);
            ret = cp;
            cp = cp->ysis;
        }
        clear_tList_data(&child->ldat);
        free(child);
    }
    else if (parent->ldat.id==JSON_ARRAY_NODE) {
        add_tTree(parent, child);
        ret = child;
    }
 
    return ret;
}
 
 
tJson*  json_insert_parse(tJson* json, const char* str)
{
    if (str==NULL || json==NULL) return NULL;
    if (json->ldat.id==JSON_ANCHOR_NODE) json = json->next;
    if (json==NULL) return NULL;
    
    tJson* jcld = json_parse(str, 99);
    if (jcld!=NULL && jcld->ldat.id==JSON_ANCHOR_NODE) {
        jcld = del_json_anchor_node(jcld);
    }
    if (jcld!=NULL) {
        jcld = json_insert_child(json, jcld);
    }
 
    return jcld;
}
 
 
tJson*  json_append_obj_key(tJson* json, const char* key)
{
    if (key==NULL || json==NULL) return NULL;
    if (json->ldat.id==JSON_ANCHOR_NODE) json = json->next;
    if (json==NULL) return NULL;
    
    Buffer buf = make_Buffer_str("{");
    if (key[0]!='"') cat_s2Buffer("\"", &buf);
    cat_s2Buffer(key, &buf);
    if (key[strlen(key)-1]!='"') cat_s2Buffer("\"", &buf);
    cat_s2Buffer(":{}}", &buf);
 
    tJson* jcld = json_parse((char*)buf.buf, 1);
    if (jcld!=NULL && jcld->ldat.id==JSON_ANCHOR_NODE) {
        jcld = del_json_anchor_node(jcld);
    }
    free_Buffer(&buf);
 
    if (jcld!=NULL) {
        jcld = json_insert_child(json, jcld);
    }
    else {
        return NULL;
    }
    if (jcld->ldat.id==JSON_BRACKET_NODE) jcld = jcld->next;
 
    return jcld;
}
 
 
tJson*  json_append_array_key(tJson* json, const char* key)
{
    if (key==NULL || json==NULL) return NULL;
    if (json->ldat.id==JSON_ANCHOR_NODE) json = json->next;
    if (json==NULL) return NULL;
 
    Buffer buf = make_Buffer_str("{");
    if (key[0]!='"') cat_s2Buffer("\"", &buf);
    cat_s2Buffer(key, &buf);
    if (key[strlen(key)-1]!='"') cat_s2Buffer("\"", &buf);
    cat_s2Buffer(":[]}", &buf);
 
    tJson* jcld = json_parse((char*)buf.buf, 1);
    if (jcld!=NULL && jcld->ldat.id==JSON_ANCHOR_NODE) {
        jcld = del_json_anchor_node(jcld);
    }
    free_Buffer(&buf);
 
    if (jcld!=NULL) {
        jcld = json_insert_child(json, jcld);
    }
    else {
        return NULL;
    }
    if (jcld->ldat.id==JSON_BRACKET_NODE) jcld = jcld->next;
 
    return jcld;
}
 
 
void  json_append_obj_str_val(tJson* json, const char* key, const char* val)
{
    if (json==NULL) return;
    if (json->ldat.id!=JSON_BRACKET_NODE && json->ldat.lv!=JSON_VALUE_OBJ) {
        json = json->next;
        if (json!=NULL) return;
        if (json->ldat.id!=JSON_BRACKET_NODE && json->ldat.lv!=JSON_VALUE_OBJ) return;
    }
 
    if (val!=NULL) {
        int len = (int)strlen(val);
        Buffer val_buf = make_Buffer(len + 4);  // \" + \" + \0 + 予備
        if (val[0]!='"') cat_s2Buffer("\"", &val_buf);
        cat_s2Buffer(val, &val_buf);
        if (val[len-1]!='"') cat_s2Buffer("\"", &val_buf);
        //
        add_tTree_node_bystr(json, JSON_DATA_NODE, JSON_VALUE_STR, key, (char*)val_buf.buf, NULL, 0);
        free_Buffer(&val_buf);
    }
    else {
        add_tTree_node_bystr(json, JSON_DATA_NODE, JSON_VALUE_NULL, key, NULL, NULL, 0);
    }
    return;
}
 
 
void  json_append_obj_int_val(tJson* json, const char* key, int val)
{
    if (json==NULL) return;
    if (json->ldat.id!=JSON_BRACKET_NODE && json->ldat.lv!=JSON_VALUE_OBJ) {
        json = json->next;
        if (json!=NULL) return;
        if (json->ldat.id!=JSON_BRACKET_NODE && json->ldat.lv!=JSON_VALUE_OBJ) return;
    }
 
    Buffer val_buf = make_Buffer(LEN_INT + 1);
    copy_i2Buffer(val, &val_buf);
    add_tTree_node_bystr(json, JSON_DATA_NODE, JSON_VALUE_INT, key, (char*)val_buf.buf, NULL, 0);
 
    free_Buffer(&val_buf);
    return;
}
 
 
void  json_append_obj_real_val(tJson* json, const char* key, float val)
{
    if (json==NULL) return;
    if (json->ldat.id!=JSON_BRACKET_NODE && json->ldat.lv!=JSON_VALUE_OBJ) {
        json = json->next;
        if (json!=NULL) return;
        if (json->ldat.id!=JSON_BRACKET_NODE && json->ldat.lv!=JSON_VALUE_OBJ) return;
    }
 
    Buffer val_buf = make_Buffer(LEN_REAL + 1);
    copy_r2Buffer(val, &val_buf);
    add_tTree_node_bystr(json, JSON_DATA_NODE, JSON_VALUE_REAL, key, (char*)val_buf.buf, NULL, 0);
 
    free_Buffer(&val_buf);
    return;
}
 
 
void  json_append_array_str_val(tJson* json, const char* val)
{
    if (json==NULL) return;
    if (json->ldat.id==JSON_BRACKET_NODE) {
        json = json->next;
        if (json==NULL) return;
    }
    if (json->ldat.id!=JSON_ARRAY_NODE) return;
 
    if (val!=NULL) {
        int len = (int)strlen(val);
        Buffer val_buf = make_Buffer(len + 4);  // \" + \" + \0 + 予備
        if (val[0]!='"') cat_s2Buffer("\"", &val_buf);
        cat_s2Buffer(val, &val_buf);
        if (val[len-1]!='"') cat_s2Buffer("\"", &val_buf);
        add_tTree_node_bystr(json, JSON_ARRAY_VALUE_NODE, JSON_VALUE_STR, "ARRAY_VALUE", (char*)val_buf.buf, NULL, 0);
        free_Buffer(&val_buf);
    }
    else {
        add_tTree_node_bystr(json, JSON_ARRAY_VALUE_NODE, JSON_VALUE_NULL, "ARRAY_VALUE", NULL, NULL, 0);
    }
    return;
}
 
 
void  json_append_array_int_val(tJson* json, int val)
{
    if (json==NULL) return;
    if (json->ldat.id==JSON_BRACKET_NODE) {
        json = json->next;
        if (json==NULL) return;
    }
    if (json->ldat.id!=JSON_ARRAY_NODE) return;
 
    Buffer val_buf = make_Buffer(LEN_INT + 1);
    copy_i2Buffer(val, &val_buf);
    add_tTree_node_bystr(json, JSON_ARRAY_VALUE_NODE, JSON_VALUE_INT, "ARRAY_VALUE", (char*)val_buf.buf, NULL, 0);
 
    free_Buffer(&val_buf);
    return;
}
 
 
void  json_append_array_real_val(tJson* json, float val)
{
    if (json==NULL) return;
    if (json->ldat.id==JSON_BRACKET_NODE) {
        json = json->next;
        if (json==NULL) return;
    }
    if (json->ldat.id!=JSON_ARRAY_NODE) return;
 
    Buffer val_buf = make_Buffer(LEN_REAL + 1);
    copy_r2Buffer(val, &val_buf);
    add_tTree_node_bystr(json, JSON_ARRAY_VALUE_NODE, JSON_VALUE_REAL, "ARRAY_VALUE", (char*)val_buf.buf, NULL, 0);
 
    free_Buffer(&val_buf);
    return;
}
 
 
tJson*   join_json(tJson* parent, tJson** child)
{
    if (*child==NULL) return parent;
    if (parent==NULL) return *child;            // この場合 ANCHOR, TEMP_NODE はそのまま
 
    if ((*child)->ldat.id==JSON_ANCHOR_NODE || (*child)->ldat.id==JSON_TEMP_NODE) {  // 子として繋げる場合，ANCHOR, TEMP_NODE は削除
        tJson* jtmp = (*child)->next;
        del_json_node(child);                   // ANCHOR, TEMP_NODE を削除してつめる．
        *child = jtmp;
    }
 
    add_tTree(parent, *child); 
 
    return parent;
}
 
 
 
// Search
 
tJson*  search_top_bracket_json(tJson* pp, int nn)
{
    if (pp==NULL) return NULL;
    if (nn<=0) nn = 1;
 
    while (pp->prev!=NULL) pp = pp->prev;
 
    if (pp->ldat.id==JSON_ANCHOR_NODE) {
        pp = pp->next;
    }
    if (pp->ldat.id==JSON_BRACKET_NODE) {
        while(pp->esis!=NULL) pp = pp->esis;
    }
    else {
        return NULL;
    }
 
    int i = 1;
    while (i<nn && pp!=NULL) {
        pp = pp->ysis;
        i++;
    }
 
    return pp;
}
 
 
tJson*  search_key_json(tJson* pp, const char* key, int needval, int nn)
{
    if (pp==NULL || key==NULL) return NULL;
    if (nn<=0) nn = 1;
 
    // 開始ノードのチェック
    if (!(pp->ldat.lv==JSON_VALUE_OBJ && needval)){
        nn = _json_check_node_bykey(pp, key, needval, nn);
    }
    // 子ノード
    if (nn>0 && pp->next!=NULL) {
        pp = _search_key_json(pp->next, key, needval, &nn);
    }
    else return NULL;
 
    return pp; 
}
 
 
tJson*   search_sister_json(tJson* pp, int nn)
{
    if (pp==NULL) return NULL;
 
    if (nn>0) {
        int i = 0;
        while (pp!=NULL && i<nn) {
            pp = pp->ysis;
            i++;
        }
    }
    else if (nn<0) {
        nn = -nn;
        int i = 0;
        while (pp!=NULL && i<nn) {
            pp = pp->esis;
            i++;
        }
    }
    return pp;
}
 
 
tJson*  search_key_child_json(tJson* pp, const char* key, int needval)
{
    if (pp!=NULL && pp->ldat.id==JSON_ANCHOR_NODE) pp = pp->next;
    if (pp==NULL || pp->next==NULL) return NULL;
 
    tJson* json = search_key_sister_json(pp->next, key, needval);
 
    return json;
}
 
 
tJson*  search_key_sister_json(tJson* pp, const char* key, int needval)
{
    if (pp==NULL || key==NULL) return NULL;
    while(pp->esis!=NULL) pp = pp->esis;
 
    while(pp!=NULL) {
        int nn = _json_check_node_bykey(pp, key, needval, 1);
        if (nn==0) return pp;
        pp = pp->ysis;
    }
    
    return NULL; 
}
 
 
tJson*  search_key_json_obj(tJson* pp, const char* key, int nn)
{
    if (pp==NULL || key==NULL) return NULL;
    if (nn<=0) nn = 1;
 
    // 開始ノードのチェック
    if (pp->ldat.lv==JSON_VALUE_OBJ) {
        nn = _json_check_node_bykey(pp, key, FALSE, nn);
    }
    if (nn==0) return pp;
 
    // 子ノード
    if (pp->next!=NULL) {
        pp = _search_key_json_obj(pp->next, key, &nn);
    }
    else return NULL;
 
    return pp; 
}
 
 
tJson*  search_double_key_json(tJson* pp, const char* key1, const char* key2, int needval)
{
    if (pp==NULL || key1==NULL || key2==NULL) return NULL;
 
    pp = search_key_json_obj(pp, key1, 1);
    if (pp==NULL) return NULL;
 
    if (pp->next!=NULL) {
        pp = search_key_json(pp, key2, needval, 1);
    }
    else return NULL;
 
    return pp; 
}
 
 
/*
tJson*  _search_key_json(tJson* pp, const char* key, int needval, int* nn)
 
search_key_json() の補助関数
pp が指すノード以下で，名前（属性名）が key である nn番目のノードへのポインタを返す．@n
needval が TRUE の場合は，値（属性値）を持っている場合のみカウントする．
search_key_json() との違いは pp の姉妹ノードも探索することである．
 
@param   pp   探索を開始するノード．ppがオブジェクト要素（JSON_VALUE_OBJ）なら，次のノードから探索する．
@param   key  探索するノード名．
@param   needval  TRUE の場合，ノードが値（属性値）を持っていない場合は無視する．"", '' の場合も無視する．
@param   nn   一致するノード内，何番目を返すか指定する．nn<=0 は nn==1 とみなす．
@return  見つかったノードへのポインタ．見つからない場合は，NULL
*/
tJson*  _search_key_json(tJson* pp, const char* key, int needval, int* nn)
{
    while(pp->esis!=NULL) pp = pp->esis;
    tJson* esis = pp;
 
    while(pp!=NULL) {
        *nn = _json_check_node_bykey(pp, key, needval, *nn);
        if ((*nn)<=0) return pp;
        pp = pp->ysis;
    }
 
    // 子ノード
    pp = esis;
    while(pp!=NULL) {
        if (pp->next!=NULL) {
            tJson* json = _search_key_json(pp->next, key, needval, nn);
            if (json!=NULL) return json;
        }
        pp = pp->ysis;
    }
    
    return NULL; 
}
 
 
/*
tJson*  _search_key_json_obj(tJson* pp, const char* key, int* nn)
 
search_key_json_obj() の補助関数
pp が指すノード以下で，名前（属性名）が key である nn番目のオブジェクトノードへのポインタを返す．
pp の姉妹ノードは探索しない．
_search_key_json() よりは少し早い．たぶん．
search_key_json_obj() との違いは pp の姉妹ノードも探索することである．
 
@param   pp   探索を開始するノード．
@param   key  探索するノード名．
@param   nn   一致するノード内，何番目を返すか指定する．nn<=0 は nn==1 とみなす．
@return  見つかったオブジェクトノードへのポインタ．見つからない場合は，NULL
*/
tJson*  _search_key_json_obj(tJson* pp, const char* key, int* nn)
{
    if (pp==NULL) return NULL;
    while(pp->esis!=NULL) pp = pp->esis;
    tJson* esis = pp;
 
    while(pp!=NULL) {
        if (pp->ldat.lv==JSON_VALUE_OBJ) {
            *nn = _json_check_node_bykey(pp, key, FALSE, *nn);
        }
        if ((*nn)<=0) return pp;
        pp = pp->ysis;
    }
 
    // 子ノード
    pp = esis;
    while(pp!=NULL) {
        if (pp->next!=NULL) {
            tJson* json = _search_key_json_obj(pp->next, key, nn);
            if (json!=NULL) return json;
        }
        pp = pp->ysis;
    }
    
    return NULL; 
}
 
 
int  _json_check_node_bykey(tJson* pp, const char* key, int needval, int nn)
{
    if (pp->ldat.key.buf!=NULL) {
        if (!strcmp(key, (char*)pp->ldat.key.buf)) {
            if (needval) {
                unsigned char* pm = pp->ldat.val.buf;
                if (pm!=NULL) { 
                    if (!((pm[0]=='\'' && pm[1]=='\'') || (pm[0]=='"' && pm[1]=='"')) && pm[0]!='\0') nn--; 
                }
            }
            else {
                nn--;
            }
        }
    }
    return nn;
}
 
 
tList*   search_all_node_strval_json(tJson* pp, const char* name, const char* val)
{
    if (pp!=NULL && pp->ldat.id==JSON_ANCHOR_NODE) pp = pp->next;
    if (pp==NULL) return NULL;
 
    tList* list = new_json_node();
    _search_all_node_strval_json(list, pp, name, val);
 
    return list;
}
 
 
tList*   _search_all_node_strval_json(tList* list, tJson* pp, const char* name, const char* val)
{
    while (pp->esis!=NULL) pp = pp->esis;
    do {
        if (pp->ldat.id==JSON_DATA_NODE || pp->ldat.id==JSON_ARRAY_VALUE_NODE) {
            if (!strncasecmp(name, (char*)pp->ldat.key.buf, strlen(name))) {
                if (pp->ldat.lv==JSON_VALUE_STR) {
                    if (!strncasecmp(val, (char*)(pp->ldat.val.buf+1), strlen(val))) {
                        list->altp = pp;
                        tList* temp = new_tList_node();
                        temp->ldat.id = list->ldat.id + 1;
                        add_tList_node(list, temp);
                        list = temp;
                    }
                }
            }
            else if (pp->ldat.lv==JSON_VALUE_OBJ) {
                if (pp->next!=NULL) {
                    list = _search_all_node_strval_json(list, pp->next, name, val);
                }
            }
        }
        else if (pp->ldat.id==JSON_BRACKET_NODE || pp->ldat.id==JSON_ARRAY_NODE) {
            if (pp->next!=NULL) {
                list = _search_all_node_strval_json(list, pp->next, name, val);
            }
        }
        pp = pp->ysis;
    } while (pp!=NULL);
 
    return list;
}
 
 
Buffer  get_json_val(tJson* json)
{
    Buffer val = init_Buffer();
 
    if (json!=NULL) {
        char* pp = (char*)json->ldat.val.buf;
        if ((*pp=='\"') || (*pp=='\'')) {
            val = set_Buffer(pp+1, (int)strlen(pp)-1);
            val.buf[val.vldsz-1] = '\0';
            val.vldsz = (int)strlen((const char*)val.buf);
        }
        else {
            val = set_Buffer(pp, (int)strlen(pp));
        }
    }
    return val;
}
 
 
Buffer  get_key_json_val(tJson* pp, const char* key, int nn)
{
    tJson* json = search_key_json(pp, key, TRUE, nn);
    Buffer val  = get_json_val(json);
 
    return val;
}
 
 
Buffer  get_key_sister_json_val(tJson* pp, const char* key)
{
    tJson* json = search_key_sister_json(pp, key, TRUE);
    Buffer val  = get_json_val(json);
 
    return val;
}
 
 
Buffer  get_double_key_json_val(tJson* pp, const char* key1, const char* key2)
{
    tJson* json = search_double_key_json(pp, key1, key2, TRUE);
    Buffer val  = get_json_val(json);
 
    return val;
}
 
 
Buffer  get_Buffer_from_json(tJson* json)
{
    Buffer buf = init_Buffer();
 
    if (json==NULL) return buf;
 
    char* pp = (char*)json->ldat.val.buf;
 
    if (pp!=NULL && json->ldat.lv!=JSON_VALUE_ARRAY) {
        if (*pp=='\"' || *pp=='\'') {
            char* pt = (char*)&(json->ldat.val.buf[json->ldat.val.vldsz-1]);
            if (*pp==*pt) {
                pp++;
                char bkup = *pt;
                *pt = '\0';
                buf = make_Buffer_str(pp);
                *pt = bkup;
            }
        }
        else {
            buf = make_Buffer_str(pp);
        }
    }
 
    return buf;
}
 
 
char*  get_string_from_json(tJson* json)
{
    if (json==NULL) return NULL;
 
    char* str = NULL;
    char* pp  = (char*)json->ldat.val.buf;
 
    if (pp!=NULL) {
        if (json->ldat.lv!=JSON_VALUE_ARRAY) {
            if (*pp=='\"' || *pp=='\'') {
                char* pt = (char*)&(json->ldat.val.buf[json->ldat.val.vldsz-1]);
                if (*pp==*pt) {
                    pp++;
                    char bkup = *pt;
                    *pt = '\0';
                    str = dup_str(pp);
                    *pt = bkup;
                }
            }
        }
        if (str==NULL) str = dup_str(pp);
    }
 
    return str;
}