static bool _tokenize_identifier(GSDLTokenizer *self, GSDLToken *result, gunichar c, GError **err) {
int length = 7;
char *output = result->val = g_malloc(length);
GUnicodeType type;
int i = g_unichar_to_utf8(c, output);
while (_peek(self, &c, err) && (c == '-' || c == '.' || g_unichar_isalpha(c) || g_unichar_isdigit(c) || (type = g_unichar_type(c)) == G_UNICODE_CURRENCY_SYMBOL || type == G_UNICODE_CONNECT_PUNCTUATION || type == G_UNICODE_LETTER_NUMBER || type == G_UNICODE_SPACING_MARK || type == G_UNICODE_NON_SPACING_MARK)) {
GROW_IF_NEEDED(output = result->val, i + 5, length);
_consume(self);
i += g_unichar_to_utf8(c, output + i);
}
FAIL_IF_ERR();
output[i] = '\0';
if (
strcmp(output, "true") == 0 ||
strcmp(output, "on") == 0 ||
strcmp(output, "false") == 0 ||
strcmp(output, "off") == 0) {
result->type = T_BOOLEAN;
} else if (strcmp(output, "null") == 0) {
result->type = T_NULL;
}
return true;
}
inline void new_double(double d)
{
_check_pre();
m_helpers_stack.back()->new_double(d);
_consume();
_check_post();
}
inline void new_null()
{
_check_pre();
m_helpers_stack.back()->new_null();
_consume();
_check_post();
}
inline void new_bool(bool b)
{
_check_pre();
m_helpers_stack.back()->new_bool(b);
_consume();
_check_post();
}
static bool _tokenize_string(GSDLTokenizer *self, GSDLToken *result, GError **err) {
int length = 7;
gunichar c;
char *output = result->val = g_malloc(length);
int i = 0;
while (_peek(self, &c, err) && c != '"' && c != EOF) {
GROW_IF_NEEDED(output = result->val, i, length);
_consume(self);
if (c == '\\') {
_read(self, &c, err);
switch (c) {
case 'n': output[i++] = '\n'; break;
case 'r': output[i++] = '\r'; break;
case 't': output[i++] = '\t'; break;
case '"': output[i++] = '"'; break;
case '\'': output[i++] = '\"'; break;
case '\\': output[i++] = '\\'; break;
case '\r':
_read(self, &c, err);
case '\n':
output[i++] = '\n';
while (_peek(self, &c, err) && (c == ' ' || c == '\t')) _consume(self);
break;
default:
i += g_unichar_to_utf8(c, output + i);
}
} else {
i += g_unichar_to_utf8(c, output + i);
}
}
FAIL_IF_ERR();
output[i] = '\0';
return true;
}
/*
* Split buffer into NULL-separated words in argv.
* Returns number of words.
*/
int dm_split_words(char *buffer, unsigned max,
unsigned ignore_comments __attribute__((unused)),
char **argv)
{
unsigned arg;
for (arg = 0; arg < max; arg++) {
buffer = _consume(buffer, isspace);
if (!*buffer)
break;
argv[arg] = buffer;
buffer = _consume(buffer, _isword);
if (*buffer) {
*buffer = '\0';
buffer++;
}
}
return arg;
}
static bool _tokenize_binary(GSDLTokenizer *self, GSDLToken *result, GError **err) {
int length = 7;
gunichar c;
char *output = result->val = g_malloc(length);
int i = 0;
while (_peek(self, &c, err) && c != ']' && c != EOF) {
_consume(self);
if (c < 256 && (isalpha((char) c) || isdigit((char) c) || strchr("+/=", (char) c))) {
GROW_IF_NEEDED(output = result->val, i, length);
output[i++] = (gunichar) c;
}
}
FAIL_IF_ERR();
output[i] = '\0';
return true;
}
static bool _tokenize_backquote_string(GSDLTokenizer *self, GSDLToken *result, GError **err) {
int length = 7;
gunichar c;
char *output = result->val = g_malloc(length);
int i = 0;
while (_peek(self, &c, err) && c != '`' && c != EOF) {
GROW_IF_NEEDED(output = result->val, i, length);
_consume(self);
if (c == '\r') _read(self, &c, err);
i += g_unichar_to_utf8(c, output + i);
}
FAIL_IF_ERR();
output[i] = '\0';
return true;
}
inline void new_string(std::string const& p)
{
namespace w = gsim::json::writer;
std::string val(p);
gsim::json::parser::decode (val);
_check_pre();
if (state_stack.back().s != w::IN_OBJECT_AWAIT_ID)
{
m_helpers_stack.back()->new_string(val);
_consume();
}
else
{
helper_ptr parent = m_helpers_stack.back();
m_helpers_stack.push_back(helper_ptr(parent->new_child(val)));
}
_check_post();
}
/**
* gsdl_tokenizer_next:
* @self: A valid %GSDLTokenizer.
* @result: (out callee-allocates): A %GSDLToken to initialize and fill in.
* @err: (out) (allow-none): Location to store any error, may be %NULL.
*
* Fetches the next token from the input. Depending on the source of input, may set an error in one
* of the %GSDL_SYNTAX_ERROR, %G_IO_CHANNEL_ERROR, or %G_CONVERT_ERROR domains.
*
* Returns: Whether a token could be successfully read.
*/
bool gsdl_tokenizer_next(GSDLTokenizer *self, GSDLToken **result, GError **err) {
gunichar c, nc;
int line;
int col;
retry:
line = self->line;
col = self->col;
if (!_read(self, &c, err)) return false;
if (G_UNLIKELY(c == EOF)) {
*result = _maketoken(T_EOF, line, col);
return true;
} else if (c == '\r') {
if (_peek(self, &c, err) && c == '\n') _consume(self);
*result = _maketoken('\n', line, col);
FAIL_IF_ERR();
return true;
} else if ((c == '/' && _peek(self, &nc, err) && nc == '/') || (c == '-' && _peek(self, &nc, err) && nc == '-') || c == '#') {
if (c != '#') _consume(self);
while (_peek(self, &c, err) && !(c == '\n' || c == EOF)) _consume(self);
goto retry;
} else if (c == '/' && _peek(self, &nc, err) && nc == '*') {
while (_read(self, &c, err)) {
if (c == EOF) {
_set_error(err,
self,
GSDL_SYNTAX_ERROR_UNEXPECTED_CHAR,
"Unterminated comment"
);
return false;
} else if (c == '*' && _peek(self, &c, err) && c == '/') {
_consume(self);
break;
}
}
goto retry;
} else if (c < 256 && strchr("-+:;./{}=\n", (char) c)) {
*result = _maketoken(c, line, col);
return true;
} else if (c < 256 && isdigit((char) c)) {
*result = _maketoken(T_NUMBER, line, col);
return _tokenize_number(self, *result, c, err);
} else if (g_unichar_isalpha(c) || g_unichar_type(c) == G_UNICODE_CONNECT_PUNCTUATION || g_unichar_type(c) == G_UNICODE_CURRENCY_SYMBOL) {
*result = _maketoken(T_IDENTIFIER, line, col);
return _tokenize_identifier(self, *result, c, err);
} else if (c == '[') {
*result = _maketoken(T_BINARY, line, col);
if (!_tokenize_binary(self, *result, err)) return false;
REQUIRE(_read(self, &c, err));
if (c == ']') {
return true;
} else {
_set_error(err,
self,
GSDL_SYNTAX_ERROR_MISSING_DELIMITER,
"Missing ']'"
);
return false;
}
} else if (c == '"') {
*result = _maketoken(T_STRING, line, col);
if (!_tokenize_string(self, *result, err)) return false;
REQUIRE(_read(self, &c, err));
if (c == '"') {
return true;
} else {
_set_error(err,
self,
GSDL_SYNTAX_ERROR_MISSING_DELIMITER,
"Missing '\"'"
);
return false;
}
} else if (c == '`') {
*result = _maketoken(T_STRING, line, col);
if (!_tokenize_backquote_string(self, *result, err)) return false;
REQUIRE(_read(self, &c, err));
if (c == '`') {
return true;
} else {
_set_error(err,
self,
GSDL_SYNTAX_ERROR_MISSING_DELIMITER,
"Missing '`'"
);
return false;
}
} else if (c == '\'') {
*result = _maketoken(T_CHAR, line, col);
(*result)->val = g_malloc0(4);
_read(self, &c, err);
if (c == '\\') {
_read(self, &c, err);
switch (c) {
case 'n': c = '\n'; break;
case 'r': c = '\r'; break;
case 't': c = '\t'; break;
case '"': c = '"'; break;
case '\'': c = '\''; break;
case '\\': c = '\\'; break;
}
}
g_unichar_to_utf8(c, (*result)->val);
REQUIRE(_read(self, &c, err));
if (c == '\'') {
return true;
} else {
_set_error(err,
self,
GSDL_SYNTAX_ERROR_MISSING_DELIMITER,
"Missing \"'\""
);
return false;
}
} else if (c == '\\' && _peek(self, &nc, err) && (nc == '\r' || nc == '\n')) {
_consume(self);
if (c == '\r') _read(self, &c, err);
goto retry;
} else if (c == ' ' || c == '\t') {
// Do nothing
goto retry;
} else {
_set_error(err,
self,
GSDL_SYNTAX_ERROR_UNEXPECTED_CHAR,
g_strdup_printf("Invalid character '%s'(%d)", g_ucs4_to_utf8(&c, 1, NULL, NULL, NULL), c)
);
return false;
}
}
//> Sub-tokenizers
static bool _tokenize_number(GSDLTokenizer *self, GSDLToken *result, gunichar c, GError **err) {
int length = 7;
char *output = result->val = g_malloc(length);
output[0] = c;
int i = 1;
while (_peek(self, &c, err) && c < 256 && isdigit(c)) {
GROW_IF_NEEDED(output = result->val, i + 1, length);
_consume(self);
output[i++] = (gunichar) c;
}
FAIL_IF_ERR();
char *suffix = output + i;
while (_peek(self, &c, err) && c < 256 && (isalpha(c) || isdigit(c))) {
GROW_IF_NEEDED(output = result->val, i + 1, length);
_consume(self);
output[i++] = (gunichar) c;
}
FAIL_IF_ERR();
output[i] = '\0';
if (*suffix == '\0') {
// Just a T_NUMBER
if (c == ':') {
_consume(self);
result->type = T_TIME_PART;
} else if (c == '/') {
_consume(self);
result->type = T_DATE_PART;
}
} else if (strcasecmp("bd", suffix) == 0) {
result->type = T_DECIMAL_END;
} else if (strcasecmp("d", suffix) == 0) {
if (c == ':') {
_consume(self);
result->type = T_DAYS;
} else {
result->type = T_DOUBLE_END;
}
} else if (strcasecmp("f", suffix) == 0) {
result->type = T_FLOAT_END;
} else if (strcasecmp("l", suffix) == 0) {
result->type = T_LONGINTEGER;
} else {
_set_error(err, self, GSDL_SYNTAX_ERROR_UNEXPECTED_CHAR, g_strdup_printf("Unexpected number suffix: \"%s\"", suffix));
return false;
}
*suffix = '\0';
return true;
}
inline void array_end()
{
state_stack.pop_back();
_consume();
_check_post();
}
inline void object_end()
{
state_stack.pop_back();
_consume();
_check_post();
}
