psqlscan.h File Reference (original) (raw)

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Typedefs
typedef struct PsqlScanStateData *	PsqlScanState

typedef enum _promptStatus	promptStatus_t

typedef struct PsqlScanCallbacks	PsqlScanCallbacks

Enumerations
enum	PsqlScanResult { PSCAN_SEMICOLON, PSCAN_BACKSLASH, PSCAN_INCOMPLETE, PSCAN_EOL }

enum	_promptStatus { PROMPT_READY, PROMPT_CONTINUE, PROMPT_COMMENT, PROMPT_SINGLEQUOTE, PROMPT_DOUBLEQUOTE, PROMPT_DOLLARQUOTE, PROMPT_PAREN, PROMPT_COPY }

enum	PsqlScanQuoteType { PQUOTE_PLAIN, PQUOTE_SQL_LITERAL, PQUOTE_SQL_IDENT, PQUOTE_SHELL_ARG }

Functions
PsqlScanState	psql_scan_create (const PsqlScanCallbacks *callbacks)

void	psql_scan_destroy (PsqlScanState state)

void	psql_scan_set_passthrough (PsqlScanState state, void *passthrough)

void	psql_scan_setup (PsqlScanState state, const char *line, int line_len, int encoding, bool std_strings)

void	psql_scan_finish (PsqlScanState state)

PsqlScanResult	psql_scan (PsqlScanState state, PQExpBuffer query_buf, promptStatus_t *prompt)

void	psql_scan_reset (PsqlScanState state)

void	psql_scan_reselect_sql_lexer (PsqlScanState state)

bool	psql_scan_in_quote (PsqlScanState state)

void	psql_scan_get_location (PsqlScanState state, int lineno, int offset)

◆ promptStatus_t

◆ PsqlScanCallbacks

◆ PsqlScanState

◆ _promptStatus

Enumerator
PROMPT_READY
PROMPT_CONTINUE
PROMPT_COMMENT
PROMPT_SINGLEQUOTE
PROMPT_DOUBLEQUOTE
PROMPT_DOLLARQUOTE
PROMPT_PAREN
PROMPT_COPY

Definition at line 39 of file psqlscan.h.

40{

enum _promptStatus promptStatus_t

◆ PsqlScanQuoteType

Enumerator
PQUOTE_PLAIN
PQUOTE_SQL_LITERAL
PQUOTE_SQL_IDENT
PQUOTE_SHELL_ARG

Definition at line 52 of file psqlscan.h.

◆ PsqlScanResult

Enumerator
PSCAN_SEMICOLON
PSCAN_BACKSLASH
PSCAN_INCOMPLETE
PSCAN_EOL

Definition at line 30 of file psqlscan.h.

◆ psql_scan()

Definition at line 1121 of file psqlscan.l.

1124{

1126 int lexresult;

1127

1128

1130

1131

1132 state->output_buf = query_buf;

1133

1134

1135 if (state->buffer_stack != NULL)

1136 yy_switch_to_buffer(state->buffer_stack->buf, state->scanner);

1137 else

1138 yy_switch_to_buffer(state->scanbufhandle, state->scanner);

1139

1140

1141 lexresult = yylex(NULL, state->scanner);

1142

1143

1144 if (state->cur_line_no == 0)

1145 state->cur_line_no = 1;

1146

1147

1148

1149

1150 switch (lexresult)

1151 {

1153 switch (state->start_state)

1154 {

1155 case INITIAL:

1156 case xqs:

1157 if (state->paren_depth > 0)

1158 {

1161 }

1162 else if (state->begin_depth > 0)

1163 {

1166 }

1167 else if (query_buf->len > 0)

1168 {

1171 }

1172 else

1173 {

1174

1177 }

1178 break;

1179 case xb:

1182 break;

1183 case xc:

1186 break;

1187 case xd:

1190 break;

1191 case xh:

1194 break;

1195 case xe:

1198 break;

1199 case xq:

1202 break;

1203 case xdolq:

1206 break;

1207 case xui:

1210 break;

1211 case xus:

1214 break;

1215 default:

1216

1217 fprintf(stderr, "invalid YY_START\n");

1218 exit(1);

1219 }

1220 break;

1224 break;

1228 break;

1229 default:

1230

1231 fprintf(stderr, "invalid yylex result\n");

1232 exit(1);

1233 }

1234

1235 return result;

1236}

#define fprintf(file, fmt, msg)

Assert(PointerIsAligned(start, uint64))

int yylex(YYSTYPE *yylval_param, yyscan_t yyscanner)

References Assert(), fprintf, PQExpBufferData::len, LEXRES_BACKSLASH, LEXRES_EOL, LEXRES_SEMI, PROMPT_COMMENT, PROMPT_CONTINUE, PROMPT_DOLLARQUOTE, PROMPT_DOUBLEQUOTE, PROMPT_PAREN, PROMPT_READY, PROMPT_SINGLEQUOTE, PSCAN_BACKSLASH, PSCAN_EOL, PSCAN_INCOMPLETE, PSCAN_SEMICOLON, and yylex().

Referenced by MainLoop(), ParseScript(), and test_psql_parse().

◆ psql_scan_create()

◆ psql_scan_destroy()

◆ psql_scan_finish()

◆ psql_scan_get_location()

void psql_scan_get_location	(	PsqlScanState	state,
int *	lineno,
int *	offset
)

Definition at line 1335 of file psqlscan.l.

1337{

1338 const char *line_end;

1339

1340

1341

1342

1343

1344

1345 if (state->cur_line_no == 0)

1346 {

1347 *lineno = 1;

1348 *offset = 0;

1349 return;

1350 }

1351

1352

1353

1354

1355

1356 while ((line_end = strchr(state->cur_line_ptr, '\n')) != NULL)

1357 {

1358 state->cur_line_no++;

1359 state->cur_line_ptr = line_end + 1;

1360 }

1361 state->cur_line_ptr += strlen(state->cur_line_ptr);

1362

1363

1364 *lineno = state->cur_line_no;

1365 *offset = state->cur_line_ptr - state->scanbuf;

1366}

Referenced by expr_lex_one_word(), expr_yyerror_more(), and ParseScript().

◆ psql_scan_in_quote()

◆ psql_scan_reselect_sql_lexer()

◆ psql_scan_reset()

◆ psql_scan_set_passthrough()

void psql_scan_set_passthrough	(	PsqlScanState	state,
void *	passthrough
)

◆ psql_scan_setup()

void psql_scan_setup	(	PsqlScanState	state,
const char *	line,
int	line_len,
int	encoding,
bool	std_strings
)