! Copyright (C) 2005, 2006 Daniel Ehrenberg
! See http://factorcode.org/license.txt for BSD license.
USING: xml.data xml.writer kernel generic io prettyprint math 
debugger sequences state-parser accessors summary
namespaces io.streams.string xml.backend ;
IN: xml.errors

TUPLE: multitags ;
C: <multitags> multitags
M: multitags summary ( obj -- str )
    drop "XML document contains multiple main tags" ;

TUPLE: pre/post-content string pre? ;
C: <pre/post-content> pre/post-content
M: pre/post-content summary ( obj -- str )
    [
        "The text string:" print
        dup string>> .
        "was used " write
        pre?>> "before" "after" ? write
        " the main tag." print
    ] with-string-writer ;

TUPLE: no-entity < parsing-error thing ;
: <no-entity> ( string -- error )
    \ no-entity parsing-error swap >>thing ;
M: no-entity summary ( obj -- str )
    [
        dup call-next-method write
        "Entity does not exist: &" write thing>> write ";" print
    ] with-string-writer ;

TUPLE: xml-string-error < parsing-error string ; ! this should not exist
: <xml-string-error> ( string -- xml-string-error )
    \ xml-string-error parsing-error swap >>string ;
M: xml-string-error summary ( obj -- str )
    [
        dup call-next-method write
        string>> print
    ] with-string-writer ;

TUPLE: mismatched < parsing-error open close ;
: <mismatched> ( open close -- error )
    \ mismatched parsing-error swap >>close swap >>open ;
M: mismatched summary ( obj -- str )
    [
        dup call-next-method write
        "Mismatched tags" print
        "Opening tag: <" write dup open>> print-name ">" print
        "Closing tag: </" write close>> print-name ">" print
    ] with-string-writer ;

TUPLE: unclosed < parsing-error tags ;
: <unclosed> ( -- unclosed )
    unclosed parsing-error
        xml-stack get rest-slice [ first name>> ] map >>tags ;
M: unclosed summary ( obj -- str )
    [
        dup call-next-method write
        "Unclosed tags" print
        "Tags: " print
        tags>> [ "  <" write print-name ">" print ] each
    ] with-string-writer ;

TUPLE: bad-uri < parsing-error string ;
: <bad-uri> ( string -- bad-uri )
    \ bad-uri parsing-error swap >>string ;
M: bad-uri summary ( obj -- str )
    [
        dup call-next-method write
        "Bad URI:" print string>> .
    ] with-string-writer ;

TUPLE: nonexist-ns < parsing-error name ;
: <nonexist-ns> ( name-string -- nonexist-ns )
    \ nonexist-ns parsing-error swap >>name ;
M: nonexist-ns summary ( obj -- str )
    [
        dup call-next-method write
        "Namespace " write name>> write " has not been declared" print
    ] with-string-writer ;

TUPLE: unopened < parsing-error ; ! this should give which tag was unopened
: <unopened> ( -- unopened )
    \ unopened parsing-error ;
M: unopened summary ( obj -- str )
    [
        call-next-method write
        "Closed an unopened tag" print
    ] with-string-writer ;

TUPLE: not-yes/no < parsing-error text ;
: <not-yes/no> ( text -- not-yes/no )
    \ not-yes/no parsing-error swap >>text ;
M: not-yes/no summary ( obj -- str )
    [
        dup call-next-method write
        "standalone must be either yes or no, not \"" write
        text>> write "\"." print
    ] with-string-writer ;

! this should actually print the names
TUPLE: extra-attrs < parsing-error attrs ;
: <extra-attrs> ( attrs -- extra-attrs )
    \ extra-attrs parsing-error swap >>attrs ;
M: extra-attrs summary ( obj -- str )
    [
        dup call-next-method write
        "Extra attributes included in xml version declaration:" print
        attrs>> .
    ] with-string-writer ;

TUPLE: bad-version < parsing-error num ;
: <bad-version> ( num -- error )
    \ bad-version parsing-error swap >>num ;
M: bad-version summary ( obj -- str )
    [
        "XML version must be \"1.0\" or \"1.1\". Version here was " write
        num>> .
    ] with-string-writer ;

TUPLE: notags ;
C: <notags> notags
M: notags summary ( obj -- str )
    drop "XML document lacks a main tag" ;

TUPLE: bad-prolog < parsing-error prolog ;
: <bad-prolog> ( prolog -- bad-prolog )
    \ bad-prolog parsing-error swap >>prolog ;
M: bad-prolog summary ( obj -- str )
    [
        dup call-next-method write
        "Misplaced XML prolog" print
        prolog>> write-prolog nl
    ] with-string-writer ;

TUPLE: capitalized-prolog < parsing-error name ;
: <capitalized-prolog> ( name -- capitalized-prolog )
    \ capitalized-prolog parsing-error swap >>name ;
M: capitalized-prolog summary ( obj -- str )
    [
        dup call-next-method write
        "XML prolog name was partially or totally capitalized, using" print
        "<?" write name>> write "...?>" write
        " instead of <?xml...?>" print
    ] with-string-writer ;

TUPLE: versionless-prolog < parsing-error ;
: <versionless-prolog> ( -- versionless-prolog )
    \ versionless-prolog parsing-error ;
M: versionless-prolog summary ( obj -- str )
    [
        call-next-method write
        "XML prolog lacks a version declaration" print
    ] with-string-writer ;

TUPLE: bad-instruction < parsing-error instruction ;
: <bad-instruction> ( instruction -- bad-instruction )
    \ bad-instruction parsing-error swap >>instruction ;
M: bad-instruction summary ( obj -- str )
    [
        dup call-next-method write
        "Misplaced processor instruction:" print
        instruction>> write-item nl
    ] with-string-writer ;

TUPLE: bad-directive < parsing-error dir ;
: <bad-directive> ( directive -- bad-directive )
    \ bad-directive parsing-error swap >>dir ;
M: bad-directive summary ( obj -- str )
    [
        dup call-next-method write
        "Misplaced directive:" print
        dir>> write-item nl
    ] with-string-writer ;

UNION: xml-parse-error multitags notags extra-attrs nonexist-ns
       not-yes/no unclosed mismatched xml-string-error expected no-entity
       bad-prolog versionless-prolog capitalized-prolog bad-instruction
       bad-directive ;