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wakaba |
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=head1 NAME
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SuikaWiki::Markup::XML::Error --- SuikaWiki XML: Error handling module for SuikaWiki::Markup::XML::*
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=head1 DESCRIPTION
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This module is part of SuikaWiki XML support.
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=cut
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package SuikaWiki::Markup::XML::Error;
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use strict;
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our $VERSION = do{my @r=(q$Revision: 1.1 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
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my %_Error = (
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## Syntax errors
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SYNTAX_DATA_OUT_OF_ROOT_ELEMENT => {
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description => 'Invalid data or markup out of root element',
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level => 'wfc',
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},
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SYNTAX_END_OF_MARKUP_NOT_FOUND => {
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description => sub {
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my ($o, $err) = @_;
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my $o_start = $err->{t}->flag ('p_o_start');
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my $r = $err->{t}->qname;
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$r = sprintf 'line %d, position %d%s', $o_start->{line},
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$o_start->{pos}, ($r ? '; '.$r : '') if ref $o_start;
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$r ? $r = '; '.$r : 0;
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$err->{t} = $err->{t}->node_type;
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'Markup is not closed (%s'.$r.')';
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},
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level => 'wfc',
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},
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SYNTAX_END_TAG_NOT_FOUND => {
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description => sub {
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my ($o, $err) = @_;
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my $o_start = $err->{t}->flag ('p_o_start');
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my $r = '';
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$r = sprintf 'line %d, position %d%s', $o_start->{line},
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$o_start->{pos}, ($r ? '; '.$r : '') if ref $o_start;
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$r ? $r = '; '.$r : 0;
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$err->{t} = $err->{t}->qname;
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'End tag of element (type = %s'.$r.') not found';
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},
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level => 'wfc',
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},
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SYNTAX_INVALID => {
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description => 'This type of markup (%s) cannot appear here',
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level => 'wfc',
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},
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SYNTAX_INVALID_CHAR => {
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description => 'Invalid character (%s) at this context',
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level => 'wfc',
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},
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SYNTAX_INVALID_DOCTYPE_POSITION => {
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description => 'DOCTYPE declaration must be between xml declaration and the root element',
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level => 'wfc',
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},
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SYNTAX_INVALID_KEYWORD => {
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description => 'Invalid keyword (%s) at this context',
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level => 'wfc',
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},
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SYNTAX_INVALID_LITERAL => {
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description => 'Literal cannot be here ("%s")',
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level => 'wfc',
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},
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SYNTAX_INVALID_MD => {
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description => 'Invalid syntax of markup declaration',
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level => 'wfc',
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},
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SYNTAX_INVALID_POSITION => {
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description => sub {
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my ($o) = shift;
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'This type of markup (%s) cannot be used '.({
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document_entity => 'out of DTD',
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dtd_internal_subset => 'in the internal subset of DTD',
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dtd_external_subset => 'in the external subset of DTD',
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external_parsed_entity => 'in the external parsed entity',
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general_external_parsed_entity => 'in the general external parsed entity',
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}->{$o->{entity_type}||'document_entity'}||'in '.$o->{entity_type})},
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level => 'wfc',
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},
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SYNTAX_LEGAL_CHARACTER => {
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description => sub {
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my $r = sprintf 'The character U-%08X is not a legal XML Char',
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$_[1]->{t};
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$_[1]->{t} = undef;
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$r;
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},
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level => 'wfc',
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},
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SYNTAX_MD_NAME_NOT_FOUND => {
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description => 'Name is required by this type of declaration',
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level => 'wfc',
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},
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SYNTAX_MD_SYSID_NOT_FOUND => {
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description => 'System identifier is required by this type of declaration',
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level => 'wfc',
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},
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SYNTAX_PE_NDATA => {
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description => 'Parameter entity must be a parsed entity',
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level => 'wfc',
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},
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SYNTAX_XML_DECLARE => {
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description => 'Syntax of XML (or text) declaration is invalid',
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level => 'wfc',
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},
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SYNTAX_XML_DECLARE_NO_ATTR => {
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description => 'XML (or text) declaration does not have pseudo attribute',
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level => 'wfc',
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},
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SYNTAX_XML_DECLARE_POSITION => {
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description => 'XML declaration must be at the top of the entity',
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level => 'wfc',
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},
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## Well-formedness error
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WFC_ELEMENT_TYPE_MATCH => {
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description => 'End tag (type = %s) does not match with start tag (type = %s)',
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level => 'wfc',
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},
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WFC_ENTITY_DECLARED => {
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description => 'Entity (%s) must be declared before it is referred',
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level => 'wfc',
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},
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WFC_LEGAL_CHARACTER => {
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description => sub {
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my $r = sprintf 'The character referred (U-%08X) is not a legal XML Char',
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$_[1]->{t};
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$_[1]->{t} = undef;
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$r;
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},
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level => 'wfc',
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},
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WFC_NO_EXTERNAL_ENTITY_REFERENCE => {
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description => 'Attribute value must not contain reference to an external entity',
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level => 'wfc',
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},
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WFC_NO_LE_IN_ATTRIBUTE_VALUE => {
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description => 'Attribute value must not contain a less-than sign (<)',
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level => 'wfc',
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},
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WFC_NO_RECURSION => {
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description => 'Parsed entity (%s) must not contain a recursive reference to itself',
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level => 'wfc',
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},
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WFC_NO_LT_IN_ATTRIBUTE_VALUE => {
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description => 'Replacement text of entity reference in an attribute value literal cannot contain LESS-THAN SIGN (<) itself',
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level => 'wfc',
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},
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WFC_PE_IN_INTERNAL_SUBSET => {
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description => 'Parameter entity (%s) cannot be referred in markup declaration in internal subset of DTD',
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level => 'wfc',
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},
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WFC_UNIQUE_ATT_SPEC => {
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description => 'Dupulicate attribute specification',
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level => 'wfc',
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},
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## Validity error
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VC_ENTITY_DECLARED => {
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description => 'Entity %s should (or must to be valid) be declared before it is referred',
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level => 'vc',
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},
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VC_NOTATION_DECLARED => {
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description => 'Notation %s should (or must to be valid) be declared',
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level => 'vc',
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},
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VC_UNIQUE_NOTATION_NAME => {
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description => 'Notation %s is already declared',
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level => 'warn',
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},
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## Namespace well-formedness error
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NC_PREFIX_NOT_DEFINED => {
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description => 'Undeclared namespace prefix (%s) is used',
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level => 'nswfc',
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},
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NS_SYNTAX_NAME_IS_NCNAME => {
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description => 'Name with colon (%s) cannot be used within namespaced XML document',
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level => 'nswfc',
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},
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## Namespace validity error
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## XML warning
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WARN_PREDEFINED_ENTITY_NOT_DECLARED => {
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description => 'Predefined general entity (%s) should be declared before it is referred for interoperability',
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level => 'warn',
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},
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WARN_UNICODE_COMPAT_CHARACTER => {
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description => sub {
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my $r = sprintf 'Use of the character U+%04X is deprecated, since it is classified as compatible character in the Unicode Standard',
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$_[1]->{t};
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$_[1]->{t} = undef;
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$r;
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},
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level => 'warn',
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},
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WARN_UNICODE_NONCHARACTER => {
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description => sub {
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my $r = sprintf 'Use of the code point U+%04X is deprecated, since it is noncharacter in the Unicode Standard',
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$_[1]->{t};
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$_[1]->{t} = undef;
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$r;
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},
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level => 'warn',
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},
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WARN_UNICODE_XML_NOT_SUITABLE_CHARACTER => {
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description => sub {
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my $r = sprintf 'Use of the character U+%04X is deprecated by W3C Note unicode-xml',
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$_[1]->{t};
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$_[1]->{t} = undef;
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$r;
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},
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level => 'warn',
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},
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WARN_UNIQUE_ENTITY_NAME => {
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description => 'General entity %s is already declared',
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level => 'warn',
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},
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WARN_UNIQUE_PARAMETER_ENTITY_NAME => {
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description => 'Parameter entity %s is already declared',
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level => 'warn',
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},
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## Implementation's warning
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## Misc
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UNKNOWN => {
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description => 'Unknown error',
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level => 'wfc',
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},
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);
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## TODO: error handling should be customizable (hookable) by user of this module
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sub raise ($$%) {
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my (undef, $o, %err) = @_;
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my $error_type = $_Error{$err{type}} || $_Error{UNKNOWN};
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my $error_msg = ref $error_type->{description} ? &{$error_type->{description}} ($o, \%err)
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: $error_type->{description};
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my @err_msg;
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ref $err{t} eq 'ARRAY' ? @err_msg = @{$err{t}} : defined $err{t} ? @err_msg = $err{t} : undef;
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$error_msg .= ' (%s)' if scalar (@err_msg) && ($error_msg !~ /%s/);
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$error_msg = sprintf $error_msg, @err_msg;
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$error_msg = "Line $o->{line}, position $o->{pos}: " . $error_msg;
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$error_msg = 'Entity '.($err{entity}||$o->{entity}) . ": " . $error_msg if ($err{entity}||$o->{entity});
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require Carp;
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Carp::carp ($error_msg);
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#Carp::croak ("Line $o->{line}, position $o->{pos}: ".$error_msg);
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}
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=head1 LICENSE
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Copyright 2003 Wakaba <[email protected]>
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This program is free software; you can redistribute it and/or
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modify it under the same terms as Perl itself.
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=cut
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1; # $Date: 2003/05/24 04:52:19 $
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