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Eliminate token length assumption in scanstr().

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This commit is contained in:
Tom Lane 1999-09-11 22:26:47 +00:00
parent a7fd74edb3
commit b65ab31910
4 changed files with 20 additions and 13 deletions
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11
src/backend/bootstrap/bootscanner.l
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/bootstrap/bootscanner.l,v 1.14 1999/07/17 20:16:47 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/bootstrap/bootscanner.l,v 1.15 1999/09/11 22:26:41 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -98,12 +98,17 @@ insert { return(INSERT_TUPLE); }
return(ID);
}
{id} {
yylval.ival = EnterString(scanstr((char*)yytext));
char *newid = scanstr((char*)yytext);
yylval.ival = EnterString(newid);
pfree(newid);
return(ID);
}
{sid} {
char *newid;
yytext[strlen(yytext)-1] = '\0'; /* strip off quotes */
yylval.ival = EnterString(scanstr((char*)yytext+1));
newid = scanstr((char*)yytext+1);
yylval.ival = EnterString(newid);
pfree(newid);
yytext[strlen(yytext)] = '"'; /* restore quotes */
return(ID);
}

4
src/backend/parser/scan.l
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.53 1999/09/07 00:13:27 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.54 1999/09/11 22:26:35 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -246,7 +246,7 @@ other .
}
<xq>{xqstop} {
BEGIN(INITIAL);
yylval.str = pstrdup(scanstr(literal));
yylval.str = scanstr(literal);
return SCONST;
}
<xq>{xqdouble} |

12
src/backend/parser/scansup.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/scansup.c,v 1.16 1999/07/17 20:17:27 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/scansup.c,v 1.17 1999/09/11 22:26:35 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -25,24 +25,26 @@
* if the string passed in has escaped codes, map the escape codes to actual
* chars
*
* the string returned is a pointer to static storage and should NOT
* be freed by the caller.
* the string returned is palloc'd and should eventually be pfree'd by the
* caller!
* ----------------
*/
char *
scanstr(char *s)
{
static char newStr[MAX_PARSE_BUFFER];
char *newStr;
int len,
i,
j;
if (s == NULL || s[0] == '\0')
return s;
return pstrdup("");
len = strlen(s);
newStr = palloc(len+1); /* string cannot get longer */
for (i = 0, j = 0; i < len; i++)
{
if (s[i] == '\'')

6
src/interfaces/ecpg/preproc/pgc.l
View File

@ -239,7 +239,7 @@ cppline {space}*#.*(\\{space}*\n)*\n*
}
<xq>{xqstop} {
BEGIN(SQL);
/* yylval.str = mm_strdup(scanstr(literal));*/
/* yylval.str = scanstr(literal); */
yylval.str = mm_strdup(literal);
return SCONST;
}
@ -601,7 +601,7 @@ cppline {space}*#.*(\\{space}*\n)*\n*
if (strcmp(old, ptr->old) == 0)
{
free(ptr->new);
/* ptr->new = mm_strdup(scanstr(literal));*/
/* ptr->new = scanstr(literal); */
ptr->new = mm_strdup(literal);
}
}
@ -611,7 +611,7 @@ cppline {space}*#.*(\\{space}*\n)*\n*
/* initial definition */
this->old = old;
/* this->new = mm_strdup(scanstr(literal));*/
/* this->new = scanstr(literal); */
this->new = mm_strdup(literal);
this->next = defines;
defines = this;