Commit 87e8014d authored by Tom Lane's avatar Tom Lane

Respond to Jeremy Drake's original gripe that \copy needs to recognize

E'...' syntax for strings in order to track the backend.
parent 6178762f
This diff is collapsed.
...@@ -3,7 +3,7 @@ ...@@ -3,7 +3,7 @@
* *
* Copyright (c) 2000-2006, PostgreSQL Global Development Group * Copyright (c) 2000-2006, PostgreSQL Global Development Group
* *
* $PostgreSQL: pgsql/src/bin/psql/stringutils.c,v 1.42 2006/03/05 15:58:52 momjian Exp $ * $PostgreSQL: pgsql/src/bin/psql/stringutils.c,v 1.43 2006/06/01 01:28:00 tgl Exp $
*/ */
#include "postgres_fe.h" #include "postgres_fe.h"
...@@ -32,7 +32,8 @@ static void strip_quotes(char *source, char quote, char escape, int encoding); ...@@ -32,7 +32,8 @@ static void strip_quotes(char *source, char quote, char escape, int encoding);
* delim - set of non-whitespace separator characters (or NULL) * delim - set of non-whitespace separator characters (or NULL)
* quote - set of characters that can quote a token (NULL if none) * quote - set of characters that can quote a token (NULL if none)
* escape - character that can quote quotes (0 if none) * escape - character that can quote quotes (0 if none)
* del_quotes - if TRUE, strip quotes from the returned token, else return * e_strings - if TRUE, treat E'...' syntax as a valid token
* del_quotes - if TRUE, strip quotes from the returned token, else return
* it exactly as found in the string * it exactly as found in the string
* encoding - the active character-set encoding * encoding - the active character-set encoding
* *
...@@ -43,6 +44,9 @@ static void strip_quotes(char *source, char quote, char escape, int encoding); ...@@ -43,6 +44,9 @@ static void strip_quotes(char *source, char quote, char escape, int encoding);
* a single quote character in the data. If escape isn't 0, then escape * a single quote character in the data. If escape isn't 0, then escape
* followed by anything (except \0) is a data character too. * followed by anything (except \0) is a data character too.
* *
* The combination of e_strings and del_quotes both TRUE is not currently
* handled. This could be fixed but it's not needed anywhere at the moment.
*
* Note that the string s is _not_ overwritten in this implementation. * Note that the string s is _not_ overwritten in this implementation.
* *
* NB: it's okay to vary delim, quote, and escape from one call to the * NB: it's okay to vary delim, quote, and escape from one call to the
...@@ -55,6 +59,7 @@ strtokx(const char *s, ...@@ -55,6 +59,7 @@ strtokx(const char *s,
const char *delim, const char *delim,
const char *quote, const char *quote,
char escape, char escape,
bool e_strings,
bool del_quotes, bool del_quotes,
int encoding) int encoding)
{ {
...@@ -126,13 +131,24 @@ strtokx(const char *s, ...@@ -126,13 +131,24 @@ strtokx(const char *s,
return start; return start;
} }
/* check for E string */
p = start;
if (e_strings &&
(*p == 'E' || *p == 'e') &&
p[1] == '\'')
{
quote = "'";
escape = '\\'; /* if std strings before, not any more */
p++;
}
/* test if quoting character */ /* test if quoting character */
if (quote && strchr(quote, *start)) if (quote && strchr(quote, *p))
{ {
/* okay, we have a quoted token, now scan for the closer */ /* okay, we have a quoted token, now scan for the closer */
char thisquote = *start; char thisquote = *p++;
for (p = start + 1; *p; p += PQmblen(p, encoding)) for (; *p; p += PQmblen(p, encoding))
{ {
if (*p == escape && p[1] != '\0') if (*p == escape && p[1] != '\0')
p++; /* process escaped anything */ p++; /* process escaped anything */
......
...@@ -3,7 +3,7 @@ ...@@ -3,7 +3,7 @@
* *
* Copyright (c) 2000-2006, PostgreSQL Global Development Group * Copyright (c) 2000-2006, PostgreSQL Global Development Group
* *
* $PostgreSQL: pgsql/src/bin/psql/stringutils.h,v 1.23 2006/03/05 15:58:52 momjian Exp $ * $PostgreSQL: pgsql/src/bin/psql/stringutils.h,v 1.24 2006/06/01 01:28:00 tgl Exp $
*/ */
#ifndef STRINGUTILS_H #ifndef STRINGUTILS_H
#define STRINGUTILS_H #define STRINGUTILS_H
...@@ -15,6 +15,7 @@ extern char *strtokx(const char *s, ...@@ -15,6 +15,7 @@ extern char *strtokx(const char *s,
const char *delim, const char *delim,
const char *quote, const char *quote,
char escape, char escape,
bool e_strings,
bool del_quotes, bool del_quotes,
int encoding); int encoding);
......
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