From f1f39911e0d2d88c98eae96a3eb14a53c664206f Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Sat, 30 Nov 2019 22:37:25 +0300
Subject: Upgrade to 12.1

---
 libpq/pgstrcasecmp.c | 151 ---------------------------------------------------
 1 file changed, 151 deletions(-)
 delete mode 100644 libpq/pgstrcasecmp.c

(limited to 'libpq/pgstrcasecmp.c')

diff --git a/libpq/pgstrcasecmp.c b/libpq/pgstrcasecmp.c
deleted file mode 100644
index ee87a65..0000000
--- a/libpq/pgstrcasecmp.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * pgstrcasecmp.c
- *	   Portable SQL-like case-independent comparisons and conversions.
- *
- * SQL99 specifies Unicode-aware case normalization, which we don't yet
- * have the infrastructure for.  Instead we use tolower() to provide a
- * locale-aware translation.  However, there are some locales where this
- * is not right either (eg, Turkish may do strange things with 'i' and
- * 'I').  Our current compromise is to use tolower() for characters with
- * the high bit set, and use an ASCII-only downcasing for 7-bit
- * characters.
- *
- * NB: this code should match downcase_truncate_identifier() in scansup.c.
- *
- * We also provide strict ASCII-only case conversion functions, which can
- * be used to implement C/POSIX case folding semantics no matter what the
- * C library thinks the locale is.
- *
- *
- * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
- *
- * src/port/pgstrcasecmp.c
- *
- *-------------------------------------------------------------------------
- */
-#include "c.h"
-
-#include <ctype.h>
-
-
-/*
- * Case-independent comparison of two null-terminated strings.
- */
-int
-pg_strcasecmp(const char *s1, const char *s2)
-{
-	for (;;)
-	{
-		unsigned char ch1 = (unsigned char) *s1++;
-		unsigned char ch2 = (unsigned char) *s2++;
-
-		if (ch1 != ch2)
-		{
-			if (ch1 >= 'A' && ch1 <= 'Z')
-				ch1 += 'a' - 'A';
-			else if (IS_HIGHBIT_SET(ch1) && isupper(ch1))
-				ch1 = tolower(ch1);
-
-			if (ch2 >= 'A' && ch2 <= 'Z')
-				ch2 += 'a' - 'A';
-			else if (IS_HIGHBIT_SET(ch2) && isupper(ch2))
-				ch2 = tolower(ch2);
-
-			if (ch1 != ch2)
-				return (int) ch1 - (int) ch2;
-		}
-		if (ch1 == 0)
-			break;
-	}
-	return 0;
-}
-
-/*
- * Case-independent comparison of two not-necessarily-null-terminated strings.
- * At most n bytes will be examined from each string.
- */
-int
-pg_strncasecmp(const char *s1, const char *s2, size_t n)
-{
-	while (n-- > 0)
-	{
-		unsigned char ch1 = (unsigned char) *s1++;
-		unsigned char ch2 = (unsigned char) *s2++;
-
-		if (ch1 != ch2)
-		{
-			if (ch1 >= 'A' && ch1 <= 'Z')
-				ch1 += 'a' - 'A';
-			else if (IS_HIGHBIT_SET(ch1) && isupper(ch1))
-				ch1 = tolower(ch1);
-
-			if (ch2 >= 'A' && ch2 <= 'Z')
-				ch2 += 'a' - 'A';
-			else if (IS_HIGHBIT_SET(ch2) && isupper(ch2))
-				ch2 = tolower(ch2);
-
-			if (ch1 != ch2)
-				return (int) ch1 - (int) ch2;
-		}
-		if (ch1 == 0)
-			break;
-	}
-	return 0;
-}
-
-/*
- * Fold a character to upper case.
- *
- * Unlike some versions of toupper(), this is safe to apply to characters
- * that aren't lower case letters.  Note however that the whole thing is
- * a bit bogus for multibyte character sets.
- */
-unsigned char
-pg_toupper(unsigned char ch)
-{
-	if (ch >= 'a' && ch <= 'z')
-		ch += 'A' - 'a';
-	else if (IS_HIGHBIT_SET(ch) && islower(ch))
-		ch = toupper(ch);
-	return ch;
-}
-
-/*
- * Fold a character to lower case.
- *
- * Unlike some versions of tolower(), this is safe to apply to characters
- * that aren't upper case letters.  Note however that the whole thing is
- * a bit bogus for multibyte character sets.
- */
-unsigned char
-pg_tolower(unsigned char ch)
-{
-	if (ch >= 'A' && ch <= 'Z')
-		ch += 'a' - 'A';
-	else if (IS_HIGHBIT_SET(ch) && isupper(ch))
-		ch = tolower(ch);
-	return ch;
-}
-
-/*
- * Fold a character to upper case, following C/POSIX locale rules.
- */
-unsigned char
-pg_ascii_toupper(unsigned char ch)
-{
-	if (ch >= 'a' && ch <= 'z')
-		ch += 'A' - 'a';
-	return ch;
-}
-
-/*
- * Fold a character to lower case, following C/POSIX locale rules.
- */
-unsigned char
-pg_ascii_tolower(unsigned char ch)
-{
-	if (ch >= 'A' && ch <= 'Z')
-		ch += 'a' - 'A';
-	return ch;
-}
-- 
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