database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-12-12 02:37:31 +03:00
Code Activity

Allow psql multi-line column values to align in the proper columns

Browse Source 
If the second output column value is 'a\nb', the 'b' should appear
  in the second display column, rather than the first column as it
  does now.

Change libpq's PQdsplen() to return more useful values.

> Note: this changes the PQdsplen function, it can now return zero or
> minus one which was not possible before. It doesn't appear anyone is
> actually using the functions other than psql but it is a change. The
> functions are not actually documentated anywhere so it's not like we're
> breaking a defined interface. The new semantics follow the Unicode
> standard.

BACKWARD COMPATIBLE CHANGE.

The only user-visible change I saw in the regression tests is that a
SELECT * on a table where all the columns have been dropped doesn't
return a blank line like before.  This seems like a step forward.

Martijn van Oosterhout
This commit is contained in:
Bruce Momjian
2006-02-10 00:39:04 +00:00
parent 593763c086
commit c01999a557
6 changed files with 714 additions and 406 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/bin/psql/mbprint.h
View File

@@ -1,11 +1,18 @@
/* $PostgreSQL: pgsql/src/bin/psql/mbprint.h,v 1.8 2005/09/24 17:53:27 tgl Exp $ */
/* $PostgreSQL: pgsql/src/bin/psql/mbprint.h,v 1.9 2006/02/10 00:39:04 momjian Exp $ */
#ifndef MBPRINT_H
#define MBPRINT_H
#include "mb/pg_wchar.h"
extern char *mbvalidate(char *pwcs, int encoding);
struct lineptr {
unsigned char *ptr;
int width;
};
extern int pg_wcswidth(const char *pwcs, size_t len, int encoding);
extern unsigned char *mbvalidate(unsigned char *pwcs, int encoding);
extern int pg_wcswidth(const unsigned char *pwcs, size_t len, int encoding);
extern void pg_wcsformat(unsigned char *pwcs, size_t len, int encoding, struct lineptr *lines, int count);
extern int pg_wcssize(unsigned char *pwcs, size_t len, int encoding, int *width, int *height, int *format_size);
#endif /* MBPRINT_H */