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Commit3e90401

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1 parent91778e8 commit3e90401

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1 file changed

+145
-4
lines changed

1 file changed

+145
-4
lines changed

‎src/backend/utils/adt/oracle_compat.c‎

Lines changed: 145 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,7 @@
11
/*
22
*Edmund Mergl <E.Mergl@bawue.de>
33
*
4-
*$Header: /cvsroot/pgsql/src/backend/utils/adt/oracle_compat.c,v 1.32 2001/09/14 17:46:40 momjian Exp $
4+
*$Header: /cvsroot/pgsql/src/backend/utils/adt/oracle_compat.c,v 1.33 2001/09/22 03:26:30 ishii Exp $
55
*
66
*/
77

@@ -11,6 +11,9 @@
1111

1212
#include"utils/builtins.h"
1313

14+
#ifdefMULTIBYTE
15+
#include"mb/pg_wchar.h"
16+
#endif
1417

1518
/********************************************************************
1619
*
@@ -304,14 +307,82 @@ btrim(PG_FUNCTION_ARGS)
304307
*end2;
305308
intm;
306309

310+
#ifdefMULTIBYTE
311+
char**mp;
312+
intmplen;
313+
char*p;
314+
intmblen;
315+
intlen;
316+
#endif
317+
307318
if ((m=VARSIZE(string)-VARHDRSZ) <=0||
308319
(VARSIZE(set)-VARHDRSZ) <=0)
309320
PG_RETURN_TEXT_P(string);
310321

311322
ptr=VARDATA(string);
323+
324+
#ifdefMULTIBYTE
325+
len=m;
326+
mp= (char**)palloc(len*sizeof(char*));
327+
p=ptr;
328+
mplen=0;
329+
330+
/* build the mb pointer array */
331+
while (len>0)
332+
{
333+
mp[mplen++]=p;
334+
mblen=pg_mblen(p);
335+
p+=mblen;
336+
len-=mblen;
337+
}
338+
mplen--;
339+
#else
312340
end=VARDATA(string)+VARSIZE(string)-VARHDRSZ-1;
341+
#endif
313342
end2=VARDATA(set)+VARSIZE(set)-VARHDRSZ-1;
314343

344+
#ifdefMULTIBYTE
345+
while (m>0)
346+
{
347+
intstr_len=pg_mblen(ptr);
348+
ptr2=VARDATA(set);
349+
while (ptr2 <=end2)
350+
{
351+
intset_len=pg_mblen(ptr2);
352+
353+
if (str_len==set_len&&
354+
memcmp(ptr,ptr2,str_len)==0)
355+
break;
356+
ptr2+=set_len;
357+
}
358+
if (ptr2>end2)
359+
break;
360+
ptr+=str_len;
361+
m-=str_len;
362+
}
363+
364+
while (m>0)
365+
{
366+
intstr_len;
367+
end=mp[mplen--];
368+
str_len=pg_mblen(end);
369+
ptr2=VARDATA(set);
370+
while (ptr2 <=end2)
371+
{
372+
intset_len=pg_mblen(ptr2);
373+
374+
if (str_len==set_len&&
375+
memcmp(end,ptr2,str_len)==0)
376+
break;
377+
ptr2+=set_len;
378+
}
379+
if (ptr2>end2)
380+
break;
381+
m-=str_len;
382+
}
383+
pfree(mp);
384+
385+
#else
315386
while (m>0)
316387
{
317388
ptr2=VARDATA(set);
@@ -341,7 +412,7 @@ btrim(PG_FUNCTION_ARGS)
341412
end--;
342413
m--;
343414
}
344-
415+
#endif
345416
ret= (text*)palloc(VARHDRSZ+m);
346417
VARATT_SIZEP(ret)=VARHDRSZ+m;
347418
memcpy(VARDATA(ret),ptr,m);
@@ -455,6 +526,26 @@ ltrim(PG_FUNCTION_ARGS)
455526
ptr=VARDATA(string);
456527
end2=VARDATA(set)+VARSIZE(set)-VARHDRSZ-1;
457528

529+
#ifdefMULTIBYTE
530+
while (m>0)
531+
{
532+
intstr_len=pg_mblen(ptr);
533+
ptr2=VARDATA(set);
534+
while (ptr2 <=end2)
535+
{
536+
intset_len=pg_mblen(ptr2);
537+
538+
if (str_len==set_len&&
539+
memcmp(ptr,ptr2,str_len)==0)
540+
break;
541+
ptr2+=set_len;
542+
}
543+
if (ptr2>end2)
544+
break;
545+
ptr+=str_len;
546+
m-=str_len;
547+
}
548+
#else
458549
while (m>0)
459550
{
460551
ptr2=VARDATA(set);
@@ -469,7 +560,7 @@ ltrim(PG_FUNCTION_ARGS)
469560
ptr++;
470561
m--;
471562
}
472-
563+
#endif
473564
ret= (text*)palloc(VARHDRSZ+m);
474565
VARATT_SIZEP(ret)=VARHDRSZ+m;
475566
memcpy(VARDATA(ret),ptr,m);
@@ -499,20 +590,70 @@ rtrim(PG_FUNCTION_ARGS)
499590
text*string=PG_GETARG_TEXT_P(0);
500591
text*set=PG_GETARG_TEXT_P(1);
501592
text*ret;
593+
502594
char*ptr,
503595
*end,
504596
*ptr2,
505597
*end2;
506598
intm;
507599

600+
#ifdefMULTIBYTE
601+
char**mp;
602+
intmplen;
603+
char*p;
604+
intmblen;
605+
intlen;
606+
#endif
607+
508608
if ((m=VARSIZE(string)-VARHDRSZ) <=0||
509609
(VARSIZE(set)-VARHDRSZ) <=0)
510610
PG_RETURN_TEXT_P(string);
511611

512612
ptr=VARDATA(string);
613+
614+
#ifdefMULTIBYTE
615+
len=m;
616+
mp= (char**)palloc(len*sizeof(char*));
617+
p=ptr;
618+
mplen=0;
619+
620+
/* build the mb pointer array */
621+
while (len>0)
622+
{
623+
mp[mplen++]=p;
624+
mblen=pg_mblen(p);
625+
p+=mblen;
626+
len-=mblen;
627+
}
628+
mplen--;
629+
#else
513630
end=VARDATA(string)+VARSIZE(string)-VARHDRSZ-1;
631+
#endif
514632
end2=VARDATA(set)+VARSIZE(set)-VARHDRSZ-1;
515633

634+
#ifdefMULTIBYTE
635+
while (m>0)
636+
{
637+
intstr_len;
638+
end=mp[mplen--];
639+
str_len=pg_mblen(end);
640+
ptr2=VARDATA(set);
641+
while (ptr2 <=end2)
642+
{
643+
intset_len=pg_mblen(ptr2);
644+
645+
if (str_len==set_len&&
646+
memcmp(end,ptr2,str_len)==0)
647+
break;
648+
ptr2+=set_len;
649+
}
650+
if (ptr2>end2)
651+
break;
652+
m-=str_len;
653+
}
654+
pfree(mp);
655+
656+
#else
516657
while (m>0)
517658
{
518659
ptr2=VARDATA(set);
@@ -527,7 +668,7 @@ rtrim(PG_FUNCTION_ARGS)
527668
end--;
528669
m--;
529670
}
530-
671+
#endif
531672
ret= (text*)palloc(VARHDRSZ+m);
532673
VARATT_SIZEP(ret)=VARHDRSZ+m;
533674
memcpy(VARDATA(ret),ptr,m);

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