text
stringlengths 0
14.1k
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[T_CLOSE_LIST] = S_PARENT },
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[S_DICT_KEY] = {
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[T_STRING] = S_DICT_COLON },
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[S_DICT_KEY_OR_CLOSE] = {
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[T_STRING] = S_DICT_COLON,
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[T_CLOSE_DICT] = S_PARENT },
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[S_DICT_COLON] = {
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[T_COLON] = S_DICT_VALUE },
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[S_DICT_VALUE] = {
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[T_OPEN_LIST] = S_LIST_VALUE_OR_CLOSE,
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[T_OPEN_DICT] = S_DICT_KEY_OR_CLOSE,
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[T_STRING] = S_DICT_COMMA_OR_CLOSE,
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[T_OTHER] = S_DICT_COMMA_OR_CLOSE },
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[S_DICT_COMMA_OR_CLOSE] = {
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[T_COMMA] = S_DICT_KEY,
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[T_CLOSE_DICT] = S_PARENT },
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};
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#define MAPSTATE(state, tok) do { \
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int newstate = STATE_STEPS[state][tok]; \
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if (!newstate) \
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return err_false(ctx, ""Unexpected symbol: '%c'"", c); \
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state = newstate; \
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} while (0)
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/* actual parser */
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static bool parse_tokens(struct JsonContext *ctx, const char *src, const char *end)
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{
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char c;
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enum ParseState state = S_INITIAL_VALUE;
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bool relaxed = ctx->options & JSON_PARSE_RELAXED;
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while (src < end) {
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c = *src++;
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switch (c) {
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case '\n':
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ctx->linenr++;
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case ' ': case '\t': case '\r': case '\f': case '\v':
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/* common case - many spaces */
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while (src < end && *src == ' ') src++;
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break;
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case '""':
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MAPSTATE(state, T_STRING);
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if (!parse_string(ctx, &src, end))
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goto failed;
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break;
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case 'n':
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MAPSTATE(state, T_OTHER);
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src--;
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if (!parse_char4(ctx, &src, end, C_NULL, JSON_NULL, 0))
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goto failed;
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continue;
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case 't':
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MAPSTATE(state, T_OTHER);
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src--;
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if (!parse_char4(ctx, &src, end, C_TRUE, JSON_BOOL, 1))
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goto failed;
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break;
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case 'f':
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MAPSTATE(state, T_OTHER);
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if (!parse_char4(ctx, &src, end, C_ALSE, JSON_BOOL, 0))
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goto failed;
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break;
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case '-':
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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MAPSTATE(state, T_OTHER);
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src--;
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if (!parse_number(ctx, &src, end))
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goto failed;
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break;
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case '[':
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MAPSTATE(state, T_OPEN_LIST);
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if (!open_container(ctx, JSON_LIST, LIST_EXTRA))
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goto failed;
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break;
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case '{':
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MAPSTATE(state, T_OPEN_DICT);
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if (!open_container(ctx, JSON_DICT, DICT_EXTRA))
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goto failed;
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break;
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case ']':
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MAPSTATE(state, T_CLOSE_LIST);
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state = close_container(ctx, state);
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if (!state)
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goto failed;
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break;
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case '}':
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MAPSTATE(state, T_CLOSE_DICT);
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state = close_container(ctx, state);
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if (!state)
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goto failed;
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break;
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case ':':
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MAPSTATE(state, T_COLON);
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if (!real_dict_add_key(ctx, ctx->parent, ctx->cur_key))
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goto failed;
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break;
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case ',':
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if (relaxed && skip_extra_comma(ctx, &src, end, state))
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