[Expat-bugs] [ expat-Bugs-1690883 ] Expat rejects xml: prefix with "unbound prefix" error.
SourceForge.net
noreply at sourceforge.net
Mon May 7 09:31:36 CEST 2007
Bugs item #1690883, was opened at 2007-03-29 15:31
Message generated for change (Settings changed) made by klemscot
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=110127&aid=1690883&group_id=10127
Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: None
Group: None
>Status: Open
Resolution: Works For Me
Priority: 5
Private: No
Submitted By: Scott Klement (klemscot)
Assigned to: Nobody/Anonymous (nobody)
Summary: Expat rejects xml: prefix with "unbound prefix" error.
Initial Comment:
When namespace handling is enabled, Expat considers the following document invalid:
<Text xml:lang="en">Foo</Text>
The error is "Unbound prefix", referring to the "xml:" prefix. However, according the W3C spec, it's not necessary to declare that particular prefix. I'm looking at the following document:
http://www.w3.org/TR/REC-xml-names/
Under chapter 3, subheading "Namespace constraint: Reserved Prefixes and Namespace Names"
This is the section I'm reading:
The prefix xml is by definition bound to the namespace name http://www.w3.org/XML/1998/namespace. ****It MAY, but need not, be declared****, and MUST NOT be bound to any other namespace name. Other prefixes MUST NOT be bound to this namespace name, and it MUST NOT be declared as the default namespace.
----------------------------------------------------------------------
Comment By: Scott Klement (klemscot)
Date: 2007-05-07 02:30
Message:
Logged In: YES
user_id=223473
Originator: YES
Ooops. Sorry about the duplicate comment!
Here's a patch (Unified Diff) that solves the problem for me.
--- /home/klemscot/as400/expat-2.0.0.orig/lib/ascii.h Tue Nov 12 15:45:57
2002
+++ ./ascii.h Mon May 7 01:25:36 2007
@@ -83,3 +83,10 @@
#define ASCII_LSQB 0x5B
#define ASCII_RSQB 0x5D
#define ASCII_UNDERSCORE 0x5F
+#define ASCII_LPAREN 0x28
+#define ASCII_RPAREN 0x29
+#define ASCII_FF 0x0C
+#define ASCII_SLASH 0x2F
+#define ASCII_HASH 0x23
+#define ASCII_PIPE 0x7C
+#define ASCII_COMMA 0x2C
--- /home/klemscot/as400/expat-2.0.0.orig/lib/xmlparse.c Fri Dec 23
08:45:27 2005
+++ ./xmlparse.c Mon May 7 01:21:55 2007
@@ -5,6 +5,7 @@
#include <stddef.h>
#include <string.h> /* memset(), memcpy() */
#include <assert.h>
+#include <ascii.h>
#define XML_BUILDING_EXPAT 1
@@ -665,10 +666,12 @@
}
static const XML_Char implicitContext[] = {
- 'x', 'm', 'l', '=', 'h', 't', 't', 'p', ':', '/', '/',
- 'w', 'w', 'w', '.', 'w', '3', '.', 'o', 'r', 'g', '/',
- 'X', 'M', 'L', '/', '1', '9', '9', '8', '/',
- 'n', 'a', 'm', 'e', 's', 'p', 'a', 'c', 'e', '\0'
+ ASCII_x, ASCII_m, ASCII_l, ASCII_EQUALS, ASCII_h, ASCII_t, ASCII_t,
ASCII_p,
+ ASCII_COLON, ASCII_SLASH, ASCII_SLASH, ASCII_w, ASCII_w, ASCII_w,
+ ASCII_PERIOD, ASCII_w, ASCII_3, ASCII_PERIOD, ASCII_o, ASCII_r,
ASCII_g,
+ ASCII_SLASH, ASCII_X, ASCII_M, ASCII_L, ASCII_SLASH, ASCII_1, ASCII_9,
+ ASCII_9, ASCII_8, ASCII_SLASH, ASCII_n, ASCII_a, ASCII_m, ASCII_e,
+ ASCII_s, ASCII_p, ASCII_a, ASCII_c, ASCII_e, '\0'
};
XML_Parser XMLCALL
@@ -761,7 +764,7 @@
unknownEncodingHandler = NULL;
unknownEncodingHandlerData = NULL;
- namespaceSeparator = '!';
+ namespaceSeparator = ASCII_EXCL;
ns = XML_FALSE;
ns_triplets = XML_FALSE;
@@ -2806,7 +2809,7 @@
return XML_ERROR_NO_MEMORY;
uriHash = CHAR_HASH(uriHash, c);
}
- while (*s++ != XML_T(':'))
+ while (*s++ != XML_T(ASCII_COLON))
;
do { /* copies null terminator */
const XML_Char c = *s;
@@ -2880,7 +2883,7 @@
if (!binding)
return XML_ERROR_UNBOUND_PREFIX;
localPart = tagNamePtr->str;
- while (*localPart++ != XML_T(':'))
+ while (*localPart++ != XML_T(ASCII_COLON))
;
}
else if (dtd->defaultPrefix.binding) {
@@ -2935,17 +2938,21 @@
const XML_Char *uri, BINDING **bindingsPtr)
{
static const XML_Char xmlNamespace[] = {
- 'h', 't', 't', 'p', ':', '/', '/',
- 'w', 'w', 'w', '.', 'w', '3', '.', 'o', 'r', 'g', '/',
- 'X', 'M', 'L', '/', '1', '9', '9', '8', '/',
- 'n', 'a', 'm', 'e', 's', 'p', 'a', 'c', 'e', '\0'
+ ASCII_h, ASCII_t, ASCII_t, ASCII_p, ASCII_COLON, ASCII_SLASH,
ASCII_SLASH,
+ ASCII_w, ASCII_w, ASCII_w, ASCII_PERIOD, ASCII_w, ASCII_3,
ASCII_PERIOD,
+ ASCII_o, ASCII_r, ASCII_g, ASCII_SLASH, ASCII_X, ASCII_M, ASCII_L,
+ ASCII_SLASH, ASCII_1, ASCII_9, ASCII_9, ASCII_8, ASCII_SLASH,
+ ASCII_n, ASCII_a, ASCII_m, ASCII_e, ASCII_s, ASCII_p, ASCII_a,
ASCII_c,
+ ASCII_e, '\0'
};
static const int xmlLen =
(int)sizeof(xmlNamespace)/sizeof(XML_Char) - 1;
static const XML_Char xmlnsNamespace[] = {
- 'h', 't', 't', 'p', ':', '/', '/',
- 'w', 'w', 'w', '.', 'w', '3', '.', 'o', 'r', 'g', '/',
- '2', '0', '0', '0', '/', 'x', 'm', 'l', 'n', 's', '/', '\0'
+ ASCII_h, ASCII_t, ASCII_t, ASCII_p, ASCII_COLON, ASCII_SLASH,
ASCII_SLASH,
+ ASCII_w, ASCII_w, ASCII_w, ASCII_PERIOD, ASCII_w, ASCII_3,
ASCII_PERIOD,
+ ASCII_o, ASCII_r, ASCII_g, ASCII_SLASH, ASCII_2, ASCII_0, ASCII_0,
+ ASCII_0, ASCII_SLASH, ASCII_x, ASCII_m, ASCII_l, ASCII_n, ASCII_s,
+ ASCII_SLASH, '\0'
};
static const int xmlnsLen =
(int)sizeof(xmlnsNamespace)/sizeof(XML_Char) - 1;
@@ -2962,13 +2969,13 @@
return XML_ERROR_UNDECLARING_PREFIX;
if (prefix->name
- && prefix->name[0] == XML_T('x')
- && prefix->name[1] == XML_T('m')
- && prefix->name[2] == XML_T('l')) {
+ && prefix->name[0] == XML_T(ASCII_x)
+ && prefix->name[1] == XML_T(ASCII_m)
+ && prefix->name[2] == XML_T(ASCII_l)) {
/* Not allowed to bind xmlns */
- if (prefix->name[3] == XML_T('n')
- && prefix->name[4] == XML_T('s')
+ if (prefix->name[3] == XML_T(ASCII_n)
+ && prefix->name[4] == XML_T(ASCII_s)
&& prefix->name[5] == XML_T('\0'))
return XML_ERROR_RESERVED_PREFIX_XMLNS;
@@ -3628,23 +3635,30 @@
XML_Bool haveMore)
{
#ifdef XML_DTD
- static const XML_Char externalSubsetName[] = { '#' , '\0' };
+ static const XML_Char externalSubsetName[] = { ASCII_HASH , '\0' };
#endif /* XML_DTD */
- static const XML_Char atypeCDATA[] = { 'C', 'D', 'A', 'T', 'A', '\0'
};
- static const XML_Char atypeID[] = { 'I', 'D', '\0' };
- static const XML_Char atypeIDREF[] = { 'I', 'D', 'R', 'E', 'F', '\0'
};
- static const XML_Char atypeIDREFS[] = { 'I', 'D', 'R', 'E', 'F', 'S',
'\0' };
- static const XML_Char atypeENTITY[] = { 'E', 'N', 'T', 'I', 'T', 'Y',
'\0' };
+ static const XML_Char atypeCDATA[] = { ASCII_C, ASCII_D, ASCII_A,
ASCII_T,
+ ASCII_A, '\0' };
+ static const XML_Char atypeID[] = { ASCII_I, ASCII_D, '\0' };
+ static const XML_Char atypeIDREF[] = { ASCII_I, ASCII_D, ASCII_R,
ASCII_E,
+ ASCII_F, '\0' };
+ static const XML_Char atypeIDREFS[] = { ASCII_I, ASCII_D, ASCII_R,
ASCII_E,
+ ASCII_F, ASCII_S, '\0' };
+ static const XML_Char atypeENTITY[] = { ASCII_E, ASCII_N, ASCII_T,
ASCII_I,
+ ASCII_T, ASCII_Y, '\0' };
static const XML_Char atypeENTITIES[] =
- { 'E', 'N', 'T', 'I', 'T', 'I', 'E', 'S', '\0' };
+ { ASCII_E, ASCII_N, ASCII_T, ASCII_I, ASCII_T, ASCII_I, ASCII_E,
+ ASCII_S, '\0' };
static const XML_Char atypeNMTOKEN[] = {
- 'N', 'M', 'T', 'O', 'K', 'E', 'N', '\0' };
+ ASCII_N, ASCII_M, ASCII_T, ASCII_O, ASCII_K, ASCII_E, ASCII_N, '\0'
};
static const XML_Char atypeNMTOKENS[] = {
- 'N', 'M', 'T', 'O', 'K', 'E', 'N', 'S', '\0' };
+ ASCII_N, ASCII_M, ASCII_T, ASCII_O, ASCII_K, ASCII_E, ASCII_N,
+ ASCII_S, '\0' };
static const XML_Char notationPrefix[] = {
- 'N', 'O', 'T', 'A', 'T', 'I', 'O', 'N', '(', '\0' };
- static const XML_Char enumValueSep[] = { '|', '\0' };
- static const XML_Char enumValueStart[] = { '(', '\0' };
+ ASCII_N, ASCII_O, ASCII_T, ASCII_A, ASCII_T, ASCII_I, ASCII_O,
ASCII_N,
+ ASCII_LPAREN, '\0' };
+ static const XML_Char enumValueSep[] = { ASCII_PIPE, '\0' };
+ static const XML_Char enumValueStart[] = { ASCII_LPAREN, '\0' };
/* save one level of indirection */
DTD * const dtd = _dtd;
@@ -3950,11 +3964,11 @@
0, parser))
return XML_ERROR_NO_MEMORY;
if (attlistDeclHandler && declAttributeType) {
- if (*declAttributeType == XML_T('(')
- || (*declAttributeType == XML_T('N')
- && declAttributeType[1] == XML_T('O'))) {
+ if (*declAttributeType == XML_T(ASCII_LPAREN)
+ || (*declAttributeType == XML_T(ASCII_N)
+ && declAttributeType[1] == XML_T(ASCII_O))) {
/* Enumerated or Notation type */
- if (!poolAppendChar(&tempPool, XML_T(')'))
+ if (!poolAppendChar(&tempPool, XML_T(ASCII_RPAREN))
|| !poolAppendChar(&tempPool, XML_T('\0')))
return XML_ERROR_NO_MEMORY;
declAttributeType = tempPool.start;
@@ -3987,11 +4001,11 @@
declAttributeIsCdata, XML_FALSE, attVal,
parser))
return XML_ERROR_NO_MEMORY;
if (attlistDeclHandler && declAttributeType) {
- if (*declAttributeType == XML_T('(')
- || (*declAttributeType == XML_T('N')
- && declAttributeType[1] == XML_T('O'))) {
+ if (*declAttributeType == XML_T(ASCII_LPAREN)
+ || (*declAttributeType == XML_T(ASCII_N)
+ && declAttributeType[1] == XML_T(ASCII_O))) {
/* Enumerated or Notation type */
- if (!poolAppendChar(&tempPool, XML_T(')'))
+ if (!poolAppendChar(&tempPool, XML_T(ASCII_RPAREN))
|| !poolAppendChar(&tempPool, XML_T('\0')))
return XML_ERROR_NO_MEMORY;
declAttributeType = tempPool.start;
@@ -4318,14 +4332,14 @@
}
break;
case XML_ROLE_GROUP_SEQUENCE:
- if (groupConnector[prologState.level] == '|')
+ if (groupConnector[prologState.level] == ASCII_PIPE)
return XML_ERROR_SYNTAX;
- groupConnector[prologState.level] = ',';
+ groupConnector[prologState.level] = ASCII_COMMA;
if (dtd->in_eldecl && elementDeclHandler)
handleDefault = XML_FALSE;
break;
case XML_ROLE_GROUP_CHOICE:
- if (groupConnector[prologState.level] == ',')
+ if (groupConnector[prologState.level] == ASCII_COMMA)
return XML_ERROR_SYNTAX;
if (dtd->in_eldecl
&& !groupConnector[prologState.level]
@@ -4337,7 +4351,7 @@
if (elementDeclHandler)
handleDefault = XML_FALSE;
}
- groupConnector[prologState.level] = '|';
+ groupConnector[prologState.level] = ASCII_PIPE;
break;
case XML_ROLE_PARAM_ENTITY_REF:
#ifdef XML_DTD
@@ -5267,7 +5281,7 @@
DTD * const dtd = _dtd; /* save one level of indirection */
const XML_Char *name;
for (name = elementType->name; *name; name++) {
- if (*name == XML_T(':')) {
+ if (*name == XML_T(ASCII_COLON)) {
PREFIX *prefix;
const XML_Char *s;
for (s = elementType->name; s != name; s++) {
@@ -5314,12 +5328,12 @@
poolFinish(&dtd->pool);
if (!ns)
;
- else if (name[0] == XML_T('x')
- && name[1] == XML_T('m')
- && name[2] == XML_T('l')
- && name[3] == XML_T('n')
- && name[4] == XML_T('s')
- && (name[5] == XML_T('\0') || name[5] == XML_T(':'))) {
+ else if (name[0] == XML_T(ASCII_x)
+ && name[1] == XML_T(ASCII_m)
+ && name[2] == XML_T(ASCII_l)
+ && name[3] == XML_T(ASCII_n)
+ && name[4] == XML_T(ASCII_s)
+ && (name[5] == XML_T('\0') || name[5] == XML_T(ASCII_COLON))) {
if (name[5] == XML_T('\0'))
id->prefix = &dtd->defaultPrefix;
else
@@ -5330,7 +5344,7 @@
int i;
for (i = 0; name[i]; i++) {
/* attributes without prefix are *not* in the default namespace
*/
- if (name[i] == XML_T(':')) {
+ if (name[i] == XML_T(ASCII_COLON)) {
int j;
for (j = 0; j < i; j++) {
if (!poolAppendChar(&dtd->pool, name[j]))
@@ -5352,7 +5366,7 @@
return id;
}
-#define CONTEXT_SEP XML_T('\f')
+#define CONTEXT_SEP XML_T(ASCII_FF)
static const XML_Char *
getContext(XML_Parser parser)
@@ -5364,7 +5378,7 @@
if (dtd->defaultPrefix.binding) {
int i;
int len;
- if (!poolAppendChar(&tempPool, XML_T('=')))
+ if (!poolAppendChar(&tempPool, XML_T(ASCII_EQUALS)))
return NULL;
len = dtd->defaultPrefix.binding->uriLen;
if (namespaceSeparator)
@@ -5390,7 +5404,7 @@
for (s = prefix->name; *s; s++)
if (!poolAppendChar(&tempPool, *s))
return NULL;
- if (!poolAppendChar(&tempPool, XML_T('=')))
+ if (!poolAppendChar(&tempPool, XML_T(ASCII_EQUALS)))
return NULL;
len = prefix->binding->uriLen;
if (namespaceSeparator)
@@ -5442,7 +5456,7 @@
context = s;
poolDiscard(&tempPool);
}
- else if (*s == XML_T('=')) {
+ else if (*s == XML_T(ASCII_EQUALS)) {
PREFIX *prefix;
if (poolLength(&tempPool) == 0)
prefix = &dtd->defaultPrefix;
----------------------------------------------------------------------
Comment By: Scott Klement (klemscot)
Date: 2007-05-07 02:26
Message:
Logged In: YES
user_id=223473
Originator: YES
I suspect that the problem is due to the fact that I'm running Expat on an
EBCDIC-based system. In most cases, Expat uses the macros defined in
ascii.h, which work correctly, as they explicitly specify a hex code point.
However, there are places where Expat will reference the character
directly, expecting that the hex code point of the document will match the
hex code point of a character typed into the source code. On an ASCII
system, they match, on an EBCDIC system they don't.
----------------------------------------------------------------------
Comment By: Scott Klement (klemscot)
Date: 2007-05-06 17:10
Message:
Logged In: YES
user_id=223473
Originator: YES
I suspect that the problem is due to the fact that I'm running Expat on an
EBCDIC-based system. In most cases, Expat uses the macros defined in
ascii.h, which work correctly, as they explicitly specify a hex code point.
However, there are places where Expat will reference the character
directly, expecting that the hex code point of the document will match the
hex code point of a character typed into the source code. On an ASCII
system, they match, on an EBCDIC system they don't.
----------------------------------------------------------------------
Comment By: Karl Waclawek (kwaclaw)
Date: 2007-05-06 11:01
Message:
Logged In: YES
user_id=290026
Originator: NO
Closing this as "Works for me", no follow-up from original poster.
----------------------------------------------------------------------
Comment By: Karl Waclawek (kwaclaw)
Date: 2007-04-28 21:36
Message:
Logged In: YES
user_id=290026
Originator: NO
Just tried with expat 2.0.0 and had no problems.
Maybe you are picking up an old version that is still installed on your
system?
----------------------------------------------------------------------
Comment By: Scott Klement (klemscot)
Date: 2007-04-28 18:52
Message:
Logged In: YES
user_id=223473
Originator: YES
Version 2.0.0.
----------------------------------------------------------------------
Comment By: Karl Waclawek (kwaclaw)
Date: 2007-04-28 10:37
Message:
Logged In: YES
user_id=290026
Originator: NO
I have no issues parsing this document with Expat CVS head. What version
of Expat are you using?
----------------------------------------------------------------------
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=110127&aid=1690883&group_id=10127
More information about the Expat-bugs
mailing list