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and check in the generated c file later, to avoid remaking it in fresh checkouts.

PHP-5.1
Wez Furlong 21 years ago
parent
6ddbfa0733
commit
88640832be
1 changed files with 231 additions and 24 deletions
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  1. 255
      ext/pdo/pdo_sql_parser.c

255
ext/pdo/pdo_sql_parser.c
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@ -1,10 +1,10 @@
/* Generated by re2c 0.5 on Fri May 21 17:33:58 2004 */
#line 1 "/home/george/src/pecl/pdo/pdo_sql_parser.re"
/* Generated by re2c 0.9.3 on Thu Jan 20 22:49:12 2005 */
#line 1 "pdo_sql_parser.re"
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2005 The PHP Group |
| Copyright (c) 1997-2004 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
@ -45,10 +45,12 @@ static int scan(Scanner *s)
char *cursor = s->cur;
std:
s->tok = cursor;
#line 54
#line 54 "pdo_sql_parser.re"
{
#line 7 "<stdout>"
{
YYCTYPE yych;
unsigned int yyaccept;
static unsigned char yybm[] = {
@ -99,9 +101,11 @@ yy0:
yy2: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych >= '\001') goto yy24;
goto yy3;
yy3:
#line 61
{ RET(PDO_PARSER_TEXT); }
#line 61 "pdo_sql_parser.re"
{ RET(PDO_PARSER_TEXT); }
#line 63 "<stdout>"
yy4: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych <= '\000') goto yy3;
@ -110,31 +114,42 @@ yy4: yyaccept = 0;
yy5: yych = *++YYCURSOR;
if(yybm[0+yych] & 16) goto yy13;
goto yy3;
yy6: yych = *++YYCURSOR;
yy6: ++YYCURSOR;
goto yy7;
yy7:
#line 60
{ RET(PDO_PARSER_BIND_POS); }
#line 60 "pdo_sql_parser.re"
{ RET(PDO_PARSER_BIND_POS); }
#line 77 "<stdout>"
yy8: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy9;
yy9: if(yybm[0+yych] & 8) goto yy8;
goto yy10;
yy10:
#line 62
{ RET(PDO_PARSER_TEXT); }
yy11: yych = *++YYCURSOR;
#line 62 "pdo_sql_parser.re"
{ RET(PDO_PARSER_TEXT); }
#line 88 "<stdout>"
yy11: ++YYCURSOR;
goto yy12;
yy12:
#line 63
{ RET(PDO_PARSER_EOI); }
#line 63 "pdo_sql_parser.re"
{ RET(PDO_PARSER_EOI); }
#line 94 "<stdout>"
yy13: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy14;
yy14: if(yybm[0+yych] & 16) goto yy13;
goto yy15;
yy15:
#line 59
{ RET(PDO_PARSER_BIND); }
#line 59 "pdo_sql_parser.re"
{ RET(PDO_PARSER_BIND); }
#line 105 "<stdout>"
yy16: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy17;
yy17: if(yybm[0+yych] & 32) goto yy16;
if(yych <= '&') goto yy18;
if(yych <= '\'') goto yy19;
@ -148,13 +163,15 @@ yy19: yyaccept = 1;
YYMARKER = ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy20;
yy20: if(yybm[0+yych] & 32) goto yy16;
if(yych <= '&') goto yy21;
if(yych <= '\'') goto yy19;
goto yy22;
yy21:
#line 58
{ RET(PDO_PARSER_TEXT); }
#line 58 "pdo_sql_parser.re"
{ RET(PDO_PARSER_TEXT); }
#line 132 "<stdout>"
yy22: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
@ -163,24 +180,213 @@ yy22: ++YYCURSOR;
yy23: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy24;
yy24: if(yybm[0+yych] & 128) goto yy23;
if(yych <= '\000') goto yy18;
if(yych <= '[') goto yy26;
goto yy25;
yy25: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
if(yych == '"') goto yy23;
goto yy18;
yy26: yych = *++YYCURSOR;
yy26: ++YYCURSOR;
goto yy27;
yy27:
#line 57
{ RET(PDO_PARSER_TEXT); }
#line 57 "pdo_sql_parser.re"
{ RET(PDO_PARSER_TEXT); }
#line 159 "<stdout>"
}
#line 64
#line 64 "pdo_sql_parser.re"
}
struct placeholder {
char *pos;
int len;
int bindno;
int qlen; /* quoted length of value */
char *quoted; /* quoted value */
int freeq;
struct placeholder *next;
};
PDO_API int pdo_parse_params(pdo_stmt_t *stmt, char *inquery, int inquery_len,
char **outquery, int *outquery_len TSRMLS_DC)
{
Scanner s;
char *ptr, *newbuffer;
int t;
int bindno = 0;
int ret = 0;
int newbuffer_len;
int padding;
HashTable *params;
struct pdo_bound_param_data *param;
int query_type = PDO_PLACEHOLDER_NONE;
struct placeholder *placeholders = NULL, *placetail = NULL, *plc = NULL;
ptr = *outquery;
s.cur = inquery;
s.lim = inquery + inquery_len;
/* phase 1: look for args */
while((t = scan(&s)) != PDO_PARSER_EOI) {
if (t == PDO_PARSER_BIND || t == PDO_PARSER_BIND_POS) {
if (t == PDO_PARSER_BIND) {
query_type |= PDO_PLACEHOLDER_NAMED;
} else {
query_type |= PDO_PLACEHOLDER_POSITIONAL;
}
plc = emalloc(sizeof(*plc));
memset(plc, 0, sizeof(*plc));
plc->next = NULL;
plc->pos = s.tok;
plc->len = s.cur - s.tok;
plc->bindno = bindno++;
if (placetail) {
placetail->next = plc;
} else {
placeholders = plc;
}
placetail = plc;
}
}
if (bindno == 0) {
/* nothing to do; good! */
return 0;
}
/* did the query make sense to me? */
if (query_type == (PDO_PLACEHOLDER_NAMED|PDO_PLACEHOLDER_POSITIONAL)) {
/* they mixed both types; punt */
strcpy(stmt->error_code, "HY093"); /* invalid parameter number */
return -1;
}
if (stmt->supports_placeholders == query_type) {
/* query matches native syntax */
ret = 0;
goto clean_up;
}
params = stmt->bound_params;
/* what are we going to do ? */
if (stmt->supports_placeholders == PDO_PLACEHOLDER_NONE) {
/* query generation */
newbuffer_len = inquery_len;
/* let's quote all the values */
for (plc = placeholders; plc; plc = plc->next) {
if (query_type == PDO_PLACEHOLDER_POSITIONAL) {
ret = zend_hash_index_find(params, plc->bindno, (void**) &param);
} else {
ret = zend_hash_find(params, plc->pos, plc->len, (void**) &param);
}
if (ret == FAILURE) {
/* parameter was not defined */
ret = -1;
strcpy(stmt->error_code, "HY093"); /* invalid parameter number */
goto clean_up;
}
if (stmt->dbh->methods->quoter) {
if (!stmt->dbh->methods->quoter(stmt->dbh, Z_STRVAL_P(param->parameter),
Z_STRLEN_P(param->parameter), &plc->quoted, &plc->qlen TSRMLS_CC)) {
/* bork */
ret = -1;
strcpy(stmt->error_code, stmt->dbh->error_code);
goto clean_up;
}
plc->freeq = 1;
} else {
plc->quoted = Z_STRVAL_P(param->parameter);
plc->qlen = Z_STRLEN_P(param->parameter);
}
newbuffer_len += plc->qlen;
}
rewrite:
/* allocate output buffer */
newbuffer = emalloc(newbuffer_len + 1);
*outquery = newbuffer;
/* and build the query */
plc = placeholders;
ptr = inquery;
do {
t = plc->pos - ptr;
if (t) {
memcpy(newbuffer, ptr, t);
newbuffer += t;
}
memcpy(newbuffer, plc->quoted, plc->qlen);
newbuffer += plc->qlen;
ptr = plc->pos + plc->len;
plc = plc->next;
} while (plc);
t = (inquery + inquery_len) - ptr;
if (t) {
memcpy(newbuffer, ptr, t);
newbuffer += t;
}
*newbuffer = '\0';
*outquery_len = newbuffer - *outquery;
ret = 1;
goto clean_up;
} else if (query_type == PDO_PLACEHOLDER_POSITIONAL) {
/* rewrite ? to :pdoX */
char idxbuf[32];
newbuffer_len = inquery_len;
for (plc = placeholders; plc; plc = plc->next) {
snprintf(idxbuf, sizeof(idxbuf), ":pdo%d", plc->bindno);
plc->quoted = estrdup(idxbuf);
plc->qlen = strlen(plc->quoted);
plc->freeq = 1;
newbuffer_len += plc->qlen;
}
goto rewrite;
} else {
/* rewrite :name to ? */
/* HARD!. We need to remember the mapping and bind those positions. */
strcpy(stmt->error_code, "IM001"); /* Driver does not support this function */
ret = -1;
}
clean_up:
while (placeholders) {
plc = placeholders;
placeholders = plc->next;
if (plc->freeq) {
efree(plc->quoted);
}
efree(plc);
}
return ret;
}
int pdo_parse_params(pdo_stmt_t *stmt, char *inquery, int inquery_len, char **outquery,
#if 0
int old_pdo_parse_params(pdo_stmt_t *stmt, char *inquery, int inquery_len, char **outquery,
int *outquery_len TSRMLS_DC)
{
Scanner s;
@ -306,6 +512,7 @@ int pdo_parse_params(pdo_stmt_t *stmt, char *inquery, int inquery_len, char **ou
*ptr = '\0';
return 0;
}
#endif
/*
* Local variables:

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