Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commit74b49a8

Browse files
committed
Add E'' to internally created SQL strings that contain backslashes.
Improve code clarity by using macros for E'' processing.
1 parent654efe6 commit74b49a8

File tree

12 files changed

+91
-89
lines changed

12 files changed

+91
-89
lines changed

‎src/backend/utils/adt/quote.c‎

Lines changed: 13 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $PostgreSQL: pgsql/src/backend/utils/adt/quote.c,v 1.15 2005/03/21 16:29:20 tgl Exp $
10+
* $PostgreSQL: pgsql/src/backend/utils/adt/quote.c,v 1.16 2005/07/02 17:01:50 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -60,19 +60,25 @@ quote_literal(PG_FUNCTION_ARGS)
6060

6161
len=VARSIZE(t)-VARHDRSZ;
6262
/* We make a worst-case result area; wasting a little space is OK */
63-
result= (text*)palloc(len*2+2+VARHDRSZ);
63+
result= (text*)palloc(len*2+3+VARHDRSZ);
6464

6565
cp1=VARDATA(t);
6666
cp2=VARDATA(result);
6767

68+
for(;len-->0;cp1++)
69+
if (*cp1=='\\')
70+
{
71+
*cp2++=ESCAPE_STRING_SYNTAX;
72+
break;
73+
}
74+
75+
len=VARSIZE(t)-VARHDRSZ;
76+
cp1=VARDATA(t);
6877
*cp2++='\'';
6978
while (len-->0)
7079
{
71-
if (*cp1=='\'')
72-
*cp2++='\'';
73-
elseif (*cp1=='\\')
74-
*cp2++='\\';
75-
80+
if (SQL_STR_DOUBLE(*cp1))
81+
*cp2++=*cp1;
7682
*cp2++=*cp1++;
7783
}
7884
*cp2++='\'';

‎src/backend/utils/adt/ruleutils.c‎

Lines changed: 17 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
*back to source text
44
*
55
* IDENTIFICATION
6-
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.202 2005/06/28 05:09:01 tgl Exp $
6+
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.203 2005/07/02 17:01:50 momjian Exp $
77
*
88
* This software is copyrighted by Jan Wieck - Hamburg.
99
*
@@ -564,12 +564,14 @@ pg_get_triggerdef(PG_FUNCTION_ARGS)
564564
{
565565
if (i>0)
566566
appendStringInfo(&buf,", ");
567+
if (strchr(p,'\\')!=NULL)
568+
appendStringInfoChar(&buf,ESCAPE_STRING_SYNTAX);
567569
appendStringInfoChar(&buf,'\'');
570+
568571
while (*p)
569572
{
570-
/* escape quotes and backslashes */
571-
if (*p=='\''||*p=='\\')
572-
appendStringInfoChar(&buf,'\\');
573+
if (SQL_STR_DOUBLE(*p))
574+
appendStringInfoChar(&buf,*p);
573575
appendStringInfoChar(&buf,*p++);
574576
}
575577
p++;
@@ -3869,22 +3871,29 @@ get_const_expr(Const *constval, deparse_context *context)
38693871
break;
38703872

38713873
default:
3872-
38733874
/*
38743875
* We must quote any funny characters in the constant's
38753876
* representation. XXX Any MULTIBYTE considerations here?
38763877
*/
3878+
for (valptr=extval;*valptr;valptr++)
3879+
if (*valptr=='\\'||
3880+
(unsignedchar)*valptr< (unsignedchar)' ')
3881+
{
3882+
appendStringInfoChar(buf,ESCAPE_STRING_SYNTAX);
3883+
break;
3884+
}
3885+
38773886
appendStringInfoChar(buf,'\'');
38783887
for (valptr=extval;*valptr;valptr++)
38793888
{
38803889
charch=*valptr;
38813890

3882-
if (ch=='\''||ch=='\\')
3891+
if (SQL_STR_DOUBLE(ch))
38833892
{
3884-
appendStringInfoChar(buf,'\\');
3893+
appendStringInfoChar(buf,ch);
38853894
appendStringInfoChar(buf,ch);
38863895
}
3887-
elseif (((unsignedchar)ch)< ((unsignedchar)' '))
3896+
elseif ((unsignedchar)ch< (unsignedchar)' ')
38883897
appendStringInfo(buf,"\\%03o", (int)ch);
38893898
else
38903899
appendStringInfoChar(buf,ch);

‎src/bin/initdb/initdb.c‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -42,7 +42,7 @@
4242
* Portions Copyright (c) 1994, Regents of the University of California
4343
* Portions taken from FreeBSD.
4444
*
45-
* $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.89 2005/07/01 17:40:28 momjian Exp $
45+
* $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.90 2005/07/02 17:01:50 momjian Exp $
4646
*
4747
*-------------------------------------------------------------------------
4848
*/
@@ -1986,8 +1986,8 @@ escape_quotes(const char *src)
19861986

19871987
for (i=0,j=0;i<len;i++)
19881988
{
1989-
if (src[i]=='\\'||src[i]=='\'')
1990-
result[j++]=src[i];/* double these */
1989+
if (SQL_STR_DOUBLE(src[i]))
1990+
result[j++]=src[i];
19911991
result[j++]=src[i];
19921992
}
19931993
result[j]='\0';

‎src/bin/pg_dump/dumputils.c‎

Lines changed: 12 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
88
* Portions Copyright (c) 1994, Regents of the University of California
99
*
10-
* $PostgreSQL: pgsql/src/bin/pg_dump/dumputils.c,v 1.18 2005/07/01 21:03:25 momjian Exp $
10+
* $PostgreSQL: pgsql/src/bin/pg_dump/dumputils.c,v 1.19 2005/07/02 17:01:51 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -111,38 +111,33 @@ fmtId(const char *rawid)
111111
void
112112
appendStringLiteral(PQExpBufferbuf,constchar*str,boolescapeAll)
113113
{
114-
boolhas_escapes= false;
115-
constchar*str2=str;
114+
charch;
115+
constchar*p;
116116

117-
while (*str2)
117+
for (p=str;*p;p++)
118118
{
119-
charch=*str2++;
120-
119+
ch=*p;
121120
if (ch=='\\'||
122-
((unsignedchar)ch< (unsignedchar)' '&&
121+
((unsignedchar)ch< (unsignedchar)' '&&
123122
(escapeAll||
124123
(ch!='\t'&&ch!='\n'&&ch!='\v'&&
125124
ch!='\f'&&ch!='\r'))))
126125
{
127-
has_escapes= true;
126+
appendPQExpBufferChar(buf,ESCAPE_STRING_SYNTAX);
128127
break;
129128
}
130129
}
131130

132-
if (has_escapes)
133-
appendPQExpBufferChar(buf,'E');
134-
135131
appendPQExpBufferChar(buf,'\'');
136-
while (*str)
132+
for (p=str;*p;p++)
137133
{
138-
charch=*str++;
139-
140-
if (ch=='\\'||ch=='\'')
134+
ch=*p;
135+
if (SQL_STR_DOUBLE(ch))
141136
{
142-
appendPQExpBufferChar(buf,ch);/* double these */
137+
appendPQExpBufferChar(buf,ch);
143138
appendPQExpBufferChar(buf,ch);
144139
}
145-
elseif ((unsignedchar)ch< (unsignedchar)' '&&
140+
elseif ((unsignedchar)ch< (unsignedchar)' '&&
146141
(escapeAll||
147142
(ch!='\t'&&ch!='\n'&&ch!='\v'&&
148143
ch!='\f'&&ch!='\r')))

‎src/bin/pg_dump/pg_dump.c‎

Lines changed: 3 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -12,7 +12,7 @@
1212
*by PostgreSQL
1313
*
1414
* IDENTIFICATION
15-
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.412 2005/07/01 21:03:25 momjian Exp $
15+
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.413 2005/07/02 17:01:51 momjian Exp $
1616
*
1717
*-------------------------------------------------------------------------
1818
*/
@@ -7792,18 +7792,17 @@ dumpTrigger(Archive *fout, TriggerInfo *tginfo)
77927792
}
77937793
p--;
77947794

7795-
/* do we need E''? */
77967795
while (s2<p)
77977796
if (*s2++=='\\')
77987797
{
7799-
appendPQExpBufferChar(query,'E');
7798+
appendPQExpBufferChar(query,ESCAPE_STRING_SYNTAX);
78007799
break;
78017800
}
78027801

78037802
appendPQExpBufferChar(query,'\'');
78047803
while (s<p)
78057804
{
7806-
if (*s=='\'')
7805+
if (*s=='\'')/* bytea already doubles backslashes */
78077806
appendPQExpBufferChar(query,'\'');
78087807
appendPQExpBufferChar(query,*s++);
78097808
}

‎src/bin/psql/describe.c‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
*
44
* Copyright (c) 2000-2005, PostgreSQL Global Development Group
55
*
6-
* $PostgreSQL: pgsql/src/bin/psql/describe.c,v 1.119 2005/07/01 17:40:28 momjian Exp $
6+
* $PostgreSQL: pgsql/src/bin/psql/describe.c,v 1.120 2005/07/02 17:01:52 momjian Exp $
77
*/
88
#include"postgres_fe.h"
99
#include"describe.h"
@@ -1898,8 +1898,8 @@ processNamePattern(PQExpBuffer buf, const char *pattern,
18981898
appendPQExpBuffer(&namebuf,"\\\\");
18991899

19001900
/* Ensure chars special to string literals are passed properly */
1901-
if (*cp=='\''||*cp=='\\')
1902-
appendPQExpBufferChar(&namebuf,*cp);/* double these */
1901+
if (SQL_STR_DOUBLE(*cp))
1902+
appendPQExpBufferChar(&namebuf,*cp);
19031903

19041904
i=PQmblen(cp,pset.encoding);
19051905
while (i--)

‎src/bin/psql/large_obj.c‎

Lines changed: 8 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
*
44
* Copyright (c) 2000-2005, PostgreSQL Global Development Group
55
*
6-
* $PostgreSQL: pgsql/src/bin/psql/large_obj.c,v 1.38 2005/07/01 17:40:28 momjian Exp $
6+
* $PostgreSQL: pgsql/src/bin/psql/large_obj.c,v 1.39 2005/07/02 17:01:52 momjian Exp $
77
*/
88
#include"postgres_fe.h"
99
#include"large_obj.h"
@@ -172,13 +172,17 @@ do_lo_import(const char *filename_arg, const char *comment_arg)
172172
if (!cmdbuf)
173173
returnfail_lo_xact("\\lo_import",own_transaction);
174174
sprintf(cmdbuf,
175-
"COMMENT ON LARGE OBJECT %u IS'",
175+
"COMMENT ON LARGE OBJECT %u IS ",
176176
loid);
177177
bufptr=cmdbuf+strlen(cmdbuf);
178+
179+
if (strchr(comment_arg,'\\')!=NULL)
180+
*bufptr++=ESCAPE_STRING_SYNTAX;
181+
*bufptr++='\'';
178182
for (i=0;i<slen;i++)
179183
{
180-
if (comment_arg[i]=='\''||comment_arg[i]=='\\')
181-
*bufptr++=comment_arg[i];/* double these */
184+
if (SQL_STR_DOUBLE(comment_arg[i]))
185+
*bufptr++=comment_arg[i];
182186
*bufptr++=comment_arg[i];
183187
}
184188
strcpy(bufptr,"'");

‎src/include/c.h‎

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -12,7 +12,7 @@
1212
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
1313
* Portions Copyright (c) 1994, Regents of the University of California
1414
*
15-
* $PostgreSQL: pgsql/src/include/c.h,v 1.186 2005/06/28 05:09:04 tgl Exp $
15+
* $PostgreSQL: pgsql/src/include/c.h,v 1.187 2005/07/02 17:01:52 momjian Exp $
1616
*
1717
*-------------------------------------------------------------------------
1818
*/
@@ -479,6 +479,8 @@ typedef NameData *Name;
479479

480480
#defineNameStr(name)((name).data)
481481

482+
#defineSQL_STR_DOUBLE(ch)((ch) == '\'' || (ch) == '\\')
483+
#defineESCAPE_STRING_SYNTAX'E'
482484

483485
/* ----------------------------------------------------------------
484486
*Section 4:IsValid macros for system types

‎src/interfaces/ecpg/ecpglib/execute.c‎

Lines changed: 5 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/execute.c,v 1.40 2005/06/0212:35:11 meskes Exp $ */
1+
/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/execute.c,v 1.41 2005/07/0217:01:53 momjian Exp $ */
22

33
/*
44
* The aim is to get a simpler inteface to the database routines.
@@ -45,21 +45,14 @@ quote_postgres(char *arg, int lineno)
4545
if (!res)
4646
return (res);
4747

48+
if (strchr(arg,'\\')!=NULL)
49+
res[ri++]=ESCAPE_STRING_SYNTAX;
4850
res[ri++]='\'';
4951

5052
for (i=0;arg[i];i++,ri++)
5153
{
52-
switch (arg[i])
53-
{
54-
case'\'':
55-
res[ri++]='\'';
56-
break;
57-
case'\\':
58-
res[ri++]='\\';
59-
break;
60-
default:
61-
;
62-
}
54+
if (SQL_STR_DOUBLE(arg[i]))
55+
res[ri++]=arg[i];
6356
res[ri]=arg[i];
6457
}
6558

‎src/interfaces/ecpg/preproc/preproc.y‎

Lines changed: 11 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/preproc.y,v 1.307 2005/02/10 08:06:35 meskes Exp $*/
1+
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/preproc.y,v 1.308 2005/07/02 17:01:53 momjian Exp $*/
22

33
/* Copyright comment*/
44
%{
@@ -4216,11 +4216,16 @@ Bconst: BCONST{ $$ = make_name();};
42164216
Xconst:XCONST{$$ = make_name();};
42174217
Sconst:SCONST
42184218
{
4219-
$$ = (char *)mm_alloc(strlen($1) +3);
4220-
$$[0]='\'';
4221-
strcpy($$+1, $1);
4222-
$$[strlen($1)+2]='\0';
4223-
$$[strlen($1)+1]='\'';
4219+
char *ret;
4220+
4221+
$$ = ret = (char *)mm_alloc(strlen($1) +4);
4222+
if (strchr($1,'\\') !=NULL)
4223+
*ret++ = ESCAPE_STRING_SYNTAX;
4224+
*ret++ ='\'';
4225+
strcpy(ret, $1);
4226+
ret += strlen($1);
4227+
*ret++ ='\'';
4228+
*ret++ ='\0';
42244229
free($1);
42254230
}
42264231
;

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp