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Jakob Huber
postgres-lambda-diff
Commits
e8466b03
Commit
e8466b03
authored
28 years ago
by
Marc G. Fournier
Browse files
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Update oracle_compat.c
parent
064466ad
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Changes
1
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1 changed file
src/backend/utils/adt/oracle_compat.c
+365
-84
365 additions, 84 deletions
src/backend/utils/adt/oracle_compat.c
with
365 additions
and
84 deletions
src/backend/utils/adt/oracle_compat.c
+
365
−
84
View file @
e8466b03
/*
* Edmund Mergl <E.Mergl@bawue.de>
*
* $Id: oracle_compat.c,v 1.
2
1997/03/
09 20:40:58 momjian
Exp $
* $Id: oracle_compat.c,v 1.
3
1997/03/
15 06:00:19 scrappy
Exp $
*
*/
...
...
@@ -9,15 +9,14 @@
#include
<ctype.h>
#include
"postgres.h"
#include
"utils/builtins.h"
/* where function declarations go */
/********************************************************************
*
*
lower
*
LOWER
*
* Syntax:
*
* text *
lower
(text *string)
* text *
LOWER
(text *string)
*
* Purpose:
*
...
...
@@ -26,9 +25,10 @@
********************************************************************/
text
*
lower
(
text
*
string
)
LOWER
(
text
*
string
)
{
char
*
ptr
;
text
*
ret
;
char
*
ptr
,
*
ptr_ret
;
int
m
;
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
...
...
@@ -37,24 +37,27 @@ lower(text *string)
return
string
;
}
ptr
=
VARDATA
(
string
);
ret
=
(
text
*
)
malloc
(
VARSIZE
(
string
));
VARSIZE
(
ret
)
=
VARSIZE
(
string
);
ptr
=
VARDATA
(
string
);
ptr_ret
=
VARDATA
(
ret
);
while
(
m
--
)
{
*
ptr
=
tolower
(
*
ptr
);
++
ptr
;
*
ptr_ret
++
=
tolower
(
*
ptr
++
);
}
return
string
;
return
ret
;
}
/********************************************************************
*
*
upper
*
UPPER
*
* Syntax:
*
* text *
upper
(text *string)
* text *
UPPER
(text *string)
*
* Purpose:
*
...
...
@@ -63,9 +66,10 @@ lower(text *string)
********************************************************************/
text
*
upper
(
text
*
string
)
UPPER
(
text
*
string
)
{
char
*
ptr
;
text
*
ret
;
char
*
ptr
,
*
ptr_ret
;
int
m
;
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
...
...
@@ -74,24 +78,27 @@ upper(text *string)
return
string
;
}
ptr
=
VARDATA
(
string
);
ret
=
(
text
*
)
malloc
(
VARSIZE
(
string
));
VARSIZE
(
ret
)
=
VARSIZE
(
string
);
ptr
=
VARDATA
(
string
);
ptr_ret
=
VARDATA
(
ret
);
while
(
m
--
)
{
*
ptr
=
toupper
(
*
ptr
);
++
ptr
;
*
ptr_ret
++
=
toupper
(
*
ptr
++
);
}
return
string
;
return
ret
;
}
/********************************************************************
*
*
initcap
*
INITCAP
*
* Syntax:
*
* text *
initcap
(text *string)
* text *
INITCAP
(text *string)
*
* Purpose:
*
...
...
@@ -102,9 +109,10 @@ upper(text *string)
********************************************************************/
text
*
initcap
(
text
*
string
)
INITCAP
(
text
*
string
)
{
char
*
ptr
;
text
*
ret
;
char
*
ptr
,
*
ptr_ret
;
int
m
;
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
...
...
@@ -113,32 +121,34 @@ initcap(text *string)
return
string
;
}
ptr
=
VARDATA
(
string
);
ret
=
(
text
*
)
malloc
(
VARSIZE
(
string
));
VARSIZE
(
ret
)
=
VARSIZE
(
string
);
*
ptr
=
toupper
(
*
ptr
);
++
ptr
;
ptr
=
VARDATA
(
string
);
ptr_ret
=
VARDATA
(
ret
);
*
ptr_ret
++
=
toupper
(
*
ptr
++
);
--
m
;
while
(
m
--
)
{
if
(
*
(
ptr
-
1
)
==
' '
||
*
(
ptr
-
1
)
==
' '
)
{
*
ptr
=
toupper
(
*
ptr
);
if
(
*
(
ptr
_ret
-
1
)
==
' '
||
*
(
ptr
_ret
-
1
)
==
' '
)
{
*
ptr
_ret
++
=
toupper
(
*
ptr
++
);
}
else
{
*
ptr
=
tolower
(
*
ptr
);
*
ptr
_ret
++
=
tolower
(
*
ptr
++
);
}
++
ptr
;
}
return
string
;
return
ret
;
}
/********************************************************************
*
*
lpad
*
LPAD
*
* Syntax:
*
* text *
lpad
(text *string1, int4 len, text *string2)
* text *
LPAD
(text *string1, int4 len, text *string2)
*
* Purpose:
*
...
...
@@ -148,10 +158,10 @@ initcap(text *string)
********************************************************************/
text
*
lpad
(
text
*
string1
,
int4
len
,
text
*
string2
)
LPAD
(
text
*
string1
,
int4
len
,
text
*
string2
)
{
text
*
ret
;
char
*
ptr
,
*
ptr1
,
*
ptr2
;
char
*
ptr1
,
*
ptr2
,
*
ptr_ret
;
int
m
,
n
;
m
=
len
-
VARSIZE
(
string1
)
+
VARHDRSZ
;
...
...
@@ -163,11 +173,11 @@ lpad(text *string1, int4 len, text *string2)
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
len
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
len
;
ptr
=
VARDATA
(
ret
);
ptr
2
=
VARDATA
(
string2
);
ptr
2
=
VARDATA
(
string2
);
ptr
_ret
=
VARDATA
(
ret
);
while
(
m
--
)
{
*
ptr
++
=
*
ptr2
;
*
ptr
_ret
++
=
*
ptr2
;
ptr2
=
ptr2
==
VARDATA
(
string2
)
+
VARSIZE
(
string2
)
-
VARHDRSZ
-
1
?
VARDATA
(
string2
)
:
++
ptr2
;
}
...
...
@@ -175,7 +185,7 @@ lpad(text *string1, int4 len, text *string2)
ptr1
=
VARDATA
(
string1
);
while
(
n
--
)
{
*
ptr
++
=
*
ptr1
++
;
*
ptr
_ret
++
=
*
ptr1
++
;
}
return
ret
;
...
...
@@ -184,11 +194,11 @@ lpad(text *string1, int4 len, text *string2)
/********************************************************************
*
*
rpad
*
RPAD
*
* Syntax:
*
* text *
rpad
(text *string1, int4 len, text *string2)
* text *
RPAD
(text *string1, int4 len, text *string2)
*
* Purpose:
*
...
...
@@ -198,10 +208,10 @@ lpad(text *string1, int4 len, text *string2)
********************************************************************/
text
*
rpad
(
text
*
string1
,
int4
len
,
text
*
string2
)
RPAD
(
text
*
string1
,
int4
len
,
text
*
string2
)
{
text
*
ret
;
char
*
ptr
,
*
ptr1
,
*
ptr2
;
char
*
ptr1
,
*
ptr2
,
*
ptr_ret
;
int
m
,
n
;
m
=
len
-
VARSIZE
(
string1
)
+
VARHDRSZ
;
...
...
@@ -213,18 +223,18 @@ rpad(text *string1, int4 len, text *string2)
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
len
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
len
;
n
=
VARSIZE
(
string1
)
-
VARHDRSZ
;
ptr
=
VARDATA
(
ret
);
ptr
1
=
VARDATA
(
string1
);
n
=
VARSIZE
(
string1
)
-
VARHDRSZ
;
ptr
1
=
VARDATA
(
string1
);
ptr
_ret
=
VARDATA
(
ret
);
while
(
n
--
)
{
*
ptr
++
=
*
ptr1
++
;
*
ptr
_ret
++
=
*
ptr1
++
;
}
ptr2
=
VARDATA
(
string2
);
while
(
m
--
)
{
*
ptr
++
=
*
ptr2
;
*
ptr
_ret
++
=
*
ptr2
;
ptr2
=
ptr2
==
VARDATA
(
string2
)
+
VARSIZE
(
string2
)
-
VARHDRSZ
-
1
?
VARDATA
(
string2
)
:
++
ptr2
;
}
...
...
@@ -234,11 +244,11 @@ rpad(text *string1, int4 len, text *string2)
/********************************************************************
*
*
ltrim
*
LTRIM
*
* Syntax:
*
* text *
ltrim
(text *string, text *set)
* text *
LTRIM
(text *string, text *set)
*
* Purpose:
*
...
...
@@ -248,9 +258,10 @@ rpad(text *string1, int4 len, text *string2)
********************************************************************/
text
*
ltrim
(
text
*
string
,
text
*
set
)
LTRIM
(
text
*
string
,
text
*
set
)
{
char
*
ptr
,
*
ptr2
,
*
end2
;
text
*
ret
;
char
*
ptr
,
*
ptr2
,
*
end2
,
*
ptr_ret
;
int
m
;
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
...
...
@@ -273,30 +284,32 @@ ltrim(text *string, text *set)
if
(
*
ptr
!=
*
ptr2
)
{
break
;
}
++
ptr
;
ptr
++
;
ptr2
=
VARDATA
(
set
);
}
m
=
VARDATA
(
string
)
+
VARSIZE
(
string
)
-
VARHDRSZ
-
ptr
+
1
;
ptr2
=
VARDATA
(
string
);
++
m
;
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
m
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
m
;
ptr_ret
=
VARDATA
(
ret
);
while
(
m
--
)
{
*
ptr
2
++
=
*
ptr
++
;
*
ptr
_ret
++
=
*
ptr
++
;
}
VARSIZE
(
string
)
-=
ptr
-
ptr2
;
return
string
;
return
ret
;
}
/********************************************************************
*
*
rtrim
*
RTRIM
*
* Syntax:
*
* text *
rtrim
(text *string, text *set)
* text *
RTRIM
(text *string, text *set)
*
* Purpose:
*
...
...
@@ -306,9 +319,10 @@ ltrim(text *string, text *set)
********************************************************************/
text
*
rtrim
(
text
*
string
,
text
*
set
)
RTRIM
(
text
*
string
,
text
*
set
)
{
char
*
ptr
,
*
ptr2
,
*
end2
;
text
*
ret
;
char
*
ptr
,
*
ptr2
,
*
end2
,
*
ptr_ret
;
int
m
;
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
...
...
@@ -335,19 +349,28 @@ rtrim(text *string, text *set)
ptr2
=
VARDATA
(
set
);
}
VARSIZE
(
string
)
-=
VARDATA
(
string
)
+
VARSIZE
(
string
)
-
VARHDRSZ
-
1
-
ptr
;
++
m
;
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
m
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
m
;
ptr_ret
=
VARDATA
(
ret
)
+
m
-
1
;
return
string
;
while
(
m
--
)
{
*
ptr_ret
--
=
*
ptr
--
;
}
return
ret
;
}
/********************************************************************
*
*
substr
*
SUBSTR
*
* Syntax:
*
* text *
substr
(text *string, int4 m, int4 n)
* text *
SUBSTR
(text *string, int4 m, int4 n)
*
* Purpose:
*
...
...
@@ -357,9 +380,10 @@ rtrim(text *string, text *set)
********************************************************************/
text
*
substr
(
text
*
string
,
int4
m
,
int4
n
)
SUBSTR
(
text
*
string
,
int4
m
,
int4
n
)
{
char
*
ptr
,
*
ptr1
;
text
*
ret
;
char
*
ptr
,
*
ptr_ret
;
int
len
;
len
=
VARSIZE
(
string
)
-
VARHDRSZ
-
m
;
...
...
@@ -368,27 +392,29 @@ substr(text *string, int4 m, int4 n)
return
string
;
}
ptr
=
VARDATA
(
string
);
ptr1
=
ptr
+
m
-
1
;
len
=
len
+
1
<
n
?
len
+
1
:
n
;
len
=
len
+
1
<
n
?
len
+
1
:
n
;
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
len
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
len
;
ptr
=
VARDATA
(
string
)
+
m
-
1
;
ptr_ret
=
VARDATA
(
ret
);
while
(
len
--
)
{
*
ptr
++
=
*
ptr
1
++
;
*
ptr
_ret
++
=
*
ptr
++
;
}
VARSIZE
(
string
)
-=
ptr1
-
ptr
;
return
string
;
return
ret
;
}
/********************************************************************
*
*
translate
*
TRANSLATE
*
* Syntax:
*
* text *
translate
(text *string, char from, char to)
* text *
TRANSLATE
(text *string, char from, char to)
*
* Purpose:
*
...
...
@@ -399,22 +425,277 @@ substr(text *string, int4 m, int4 n)
********************************************************************/
text
*
translate
(
text
*
string
,
char
from
,
char
to
)
TRANSLATE
(
text
*
string
,
char
from
,
char
to
)
{
char
*
ptr
;
text
*
ret
;
char
*
ptr
,
*
ptr_ret
;
int
m
;
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
ptr
=
VARDATA
(
string
);
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
if
(
m
<=
0
)
{
return
string
;
}
ret
=
(
text
*
)
malloc
(
VARSIZE
(
string
));
VARSIZE
(
ret
)
=
VARSIZE
(
string
);
ptr
=
VARDATA
(
string
);
ptr_ret
=
VARDATA
(
ret
);
while
(
m
--
)
{
*
ptr_ret
++
=
*
ptr
==
from
?
to
:
*
ptr
;
ptr
++
;
}
return
ret
;
}
/********************************************************************
*
* Functions in lower case are the equivalents with the last
* parameter beeing set to a reasonable default.
*
********************************************************************/
/********************************************************************
*
* lpad
*
* Syntax:
*
* text *lpad(text *string1, int4 len)
*
* Purpose:
*
* Returns string1, left-padded to length len with blanks.
*
********************************************************************/
text
*
lpad
(
text
*
string1
,
int4
len
)
{
text
*
ret
;
char
*
ptr1
,
*
ptr_ret
;
int
m
,
n
;
m
=
len
-
VARSIZE
(
string1
)
+
VARHDRSZ
;
if
(
m
<=
0
)
{
return
string1
;
}
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
len
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
len
;
ptr_ret
=
VARDATA
(
ret
);
while
(
m
--
)
{
if
(
*
ptr
==
from
)
{
*
ptr
=
to
;
*
ptr_ret
++
=
' '
;
}
n
=
VARSIZE
(
string1
)
-
VARHDRSZ
;
ptr1
=
VARDATA
(
string1
);
while
(
n
--
)
{
*
ptr_ret
++
=
*
ptr1
++
;
}
return
ret
;
}
/********************************************************************
*
* rpad
*
* Syntax:
*
* text *rpad(text *string1, int4 len)
*
* Purpose:
*
* Returns string1, right-padded to length len with blanks.
*
********************************************************************/
text
*
rpad
(
text
*
string1
,
int4
len
)
{
text
*
ret
;
char
*
ptr1
,
*
ptr_ret
;
int
m
,
n
;
m
=
len
-
VARSIZE
(
string1
)
+
VARHDRSZ
;
if
(
m
<=
0
)
{
return
string1
;
}
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
len
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
len
;
n
=
VARSIZE
(
string1
)
-
VARHDRSZ
;
ptr1
=
VARDATA
(
string1
);
ptr_ret
=
VARDATA
(
ret
);
while
(
n
--
)
{
*
ptr_ret
++
=
*
ptr1
++
;
}
while
(
m
--
)
{
*
ptr_ret
++
=
' '
;
}
return
ret
;
}
/********************************************************************
*
* ltrim
*
* Syntax:
*
* text *ltrim(text *string)
*
* Purpose:
*
* Returns string with initial blanks removed.
*
********************************************************************/
text
*
ltrim
(
text
*
string
)
{
text
*
ret
;
char
*
ptr
,
*
ptr_ret
;
int
m
;
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
if
(
m
<=
0
)
{
return
string
;
}
ptr
=
VARDATA
(
string
);
while
(
m
--
)
{
if
(
*
ptr
!=
' '
)
{
break
;
}
++
ptr
;
}
return
string
;
++
m
;
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
m
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
m
;
ptr_ret
=
VARDATA
(
ret
);
while
(
m
--
)
{
*
ptr_ret
++
=
*
ptr
++
;
}
return
ret
;
}
/********************************************************************
*
* rtrim
*
* Syntax:
*
* text *rtrim(text *string)
*
* Purpose:
*
* Returns string with final blanks removed.
*
********************************************************************/
text
*
rtrim
(
text
*
string
)
{
text
*
ret
;
char
*
ptr
,
*
ptr_ret
;
int
m
;
m
=
VARSIZE
(
string
)
-
VARHDRSZ
;
if
(
m
<=
0
)
{
return
string
;
}
ptr
=
VARDATA
(
string
)
+
VARSIZE
(
string
)
-
VARHDRSZ
-
1
;
while
(
m
--
)
{
if
(
*
ptr
!=
' '
)
{
break
;
}
--
ptr
;
}
++
m
;
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
m
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
m
;
ptr_ret
=
VARDATA
(
ret
)
+
m
-
1
;
while
(
m
--
)
{
*
ptr_ret
--
=
*
ptr
--
;
}
return
ret
;
}
/********************************************************************
*
* substr
*
* Syntax:
*
* text *substr(text *string, int4 m)
*
* Purpose:
*
* Returns a portion of string, beginning at character m, up to
* the end of string. The first position of string is 1.
*
********************************************************************/
text
*
substr
(
text
*
string
,
int4
m
)
{
text
*
ret
;
char
*
ptr
,
*
ptr_ret
;
int
len
;
len
=
VARSIZE
(
string
)
-
VARHDRSZ
-
m
;
if
(
m
<=
0
||
len
<=
0
)
{
return
string
;
}
len
=
len
+
1
;
ret
=
(
text
*
)
malloc
(
VARHDRSZ
+
len
);
VARSIZE
(
ret
)
=
VARHDRSZ
+
len
;
ptr
=
VARDATA
(
string
)
+
m
-
1
;
ptr_ret
=
VARDATA
(
ret
);
while
(
len
--
)
{
*
ptr_ret
++
=
*
ptr
++
;
}
return
ret
;
}
...
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