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Rename utf2ucs() to utf8_to_unicode(), and export it so it can be used

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elsewhere.

Similarly rename the version in mbprint.c, not because this affects anything
but just to keep the two copies in exact sync.  There was some discussion of
having only one copy in src/port/ instead, but this function is so small
and unlikely to change that that seems like overkill.

Slightly editorialized version of a patch by Joseph Adams.  (The bug-fix
aspect of his patch was applied separately, and back-patched.)
This commit is contained in:
Tom Lane
2010-08-18 19:54:01 +00:00
parent b5565bca11
commit 2d8314bd43
3 changed files with 22 additions and 17 deletions
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16
src/bin/psql/mbprint.c
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@@ -3,7 +3,7 @@
*
* Copyright (c) 2000-2010, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/psql/mbprint.c,v 1.39 2010/08/16 00:06:18 tgl Exp $
* $PostgreSQL: pgsql/src/bin/psql/mbprint.c,v 1.40 2010/08/18 19:54:01 tgl Exp $
*
* XXX this file does not really belong in psql/. Perhaps move to libpq?
* It also seems that the mbvalidate function is redundant with existing
@@ -43,13 +43,15 @@ pg_get_utf8_id(void)
#define PG_UTF8 pg_get_utf8_id()
/*
* Convert a UTF-8 character to a Unicode code point.
* This is a one-character version of pg_utf2wchar_with_len.
*
* No error checks here, c must point to a long-enough string.
*/
static pg_wchar
utf2ucs(const unsigned char *c)
utf8_to_unicode(const unsigned char *c)
{
/*
* one char version of pg_utf2wchar_with_len. no control here, c must
* point to a large enough string
*/
if ((*c & 0x80) == 0)
return (pg_wchar) c[0];
else if ((*c & 0xe0) == 0xc0)
@@ -346,7 +348,7 @@ pg_wcsformat(unsigned char *pwcs, size_t len, int encoding,
else if (w < 0) /* Non-ascii control char */
{
if (encoding == PG_UTF8)
sprintf((char *) ptr, "\\u%04X", utf2ucs(pwcs));
sprintf((char *) ptr, "\\u%04X", utf8_to_unicode(pwcs));
else
{
/*