unipdf/fdf/fdf.go

//
// Copyright 2020 FoxyUtils ehf. All rights reserved.
//
// This is a commercial product and requires a license to operate.
// A trial license can be obtained at https://unidoc.io
//
// DO NOT EDIT: generated by unitwist Go source code obfuscator.
//
// Use of this source code is governed by the UniDoc End User License Agreement
// terms that can be accessed at https://unidoc.io/eula/

// Package fdf provides support for loading form field data from Form Field Data (FDF) files.
package fdf ;import (_e "bufio";_b "bytes";_fa "encoding/hex";_a "errors";_ca "fmt";_bb "github.com/unidoc/unipdf/v3/common";_ff "github.com/unidoc/unipdf/v3/core";_fac "io";_gc "os";_c "regexp";_ga "sort";_aa "strconv";_f "strings";);var _cc =_c .MustCompile ("\u0028\u005c\u0064\u002b)\\\u0073\u002b\u0028\u005c\u0064\u002b\u0029\u005c\u0073\u002b\u006f\u0062\u006a");func (_cfa *fdfParser )parseBool ()(_ff .PdfObjectBool ,error ){_fafd ,_cee :=_cfa ._afd .Peek (4);if _cee !=nil {return _ff .PdfObjectBool (false ),_cee ;};if (len (_fafd )>=4)&&(string (_fafd [:4])=="\u0074\u0072\u0075\u0065"){_cfa ._afd .Discard (4);return _ff .PdfObjectBool (true ),nil ;};_fafd ,_cee =_cfa ._afd .Peek (5);if _cee !=nil {return _ff .PdfObjectBool (false ),_cee ;};if (len (_fafd )>=5)&&(string (_fafd [:5])=="\u0066\u0061\u006cs\u0065"){_cfa ._afd .Discard (5);return _ff .PdfObjectBool (false ),nil ;};return _ff .PdfObjectBool (false ),_a .New ("\u0075n\u0065\u0078\u0070\u0065c\u0074\u0065\u0064\u0020\u0062o\u006fl\u0065a\u006e\u0020\u0073\u0074\u0072\u0069\u006eg");};func (_ccab *fdfParser )parseArray ()(*_ff .PdfObjectArray ,error ){_dcga :=_ff .MakeArray ();_ccab ._afd .ReadByte ();for {_ccab .skipSpaces ();_agc ,_cfc :=_ccab ._afd .Peek (1);if _cfc !=nil {return _dcga ,_cfc ;};if _agc [0]==']'{_ccab ._afd .ReadByte ();break ;};_eaad ,_cfc :=_ccab .parseObject ();if _cfc !=nil {return _dcga ,_cfc ;};_dcga .Append (_eaad );};return _dcga ,nil ;};func (_bfd *fdfParser )parseDict ()(*_ff .PdfObjectDictionary ,error ){_bb .Log .Trace ("\u0052\u0065\u0061\u0064\u0069\u006e\u0067\u0020\u0046\u0044\u0046\u0020D\u0069\u0063\u0074\u0021");_ccc :=_ff .MakeDict ();_efg ,_ :=_bfd ._afd .ReadByte ();if _efg !='<'{return nil ,_a .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0064\u0069\u0063\u0074");};_efg ,_ =_bfd ._afd .ReadByte ();if _efg !='<'{return nil ,_a .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0064\u0069\u0063\u0074");};for {_bfd .skipSpaces ();_bfd .skipComments ();_cfd ,_efa :=_bfd ._afd .Peek (2);if _efa !=nil {return nil ,_efa ;};_bb .Log .Trace ("D\u0069c\u0074\u0020\u0070\u0065\u0065\u006b\u003a\u0020%\u0073\u0020\u0028\u0025 x\u0029\u0021",string (_cfd ),string (_cfd ));if (_cfd [0]=='>')&&(_cfd [1]=='>'){_bb .Log .Trace ("\u0045\u004f\u0046\u0020\u0064\u0069\u0063\u0074\u0069o\u006e\u0061\u0072\u0079");_bfd ._afd .ReadByte ();_bfd ._afd .ReadByte ();break ;};_bb .Log .Trace ("\u0050a\u0072s\u0065\u0020\u0074\u0068\u0065\u0020\u006e\u0061\u006d\u0065\u0021");_dad ,_efa :=_bfd .parseName ();_bb .Log .Trace ("\u004be\u0079\u003a\u0020\u0025\u0073",_dad );if _efa !=nil {_bb .Log .Debug ("E\u0052\u0052\u004f\u0052\u0020\u0052e\u0074\u0075\u0072\u006e\u0069\u006e\u0067\u0020\u006ea\u006d\u0065\u0020e\u0072r\u0020\u0025\u0073",_efa );return nil ,_efa ;};if len (_dad )> 4&&_dad [len (_dad )-4:]=="\u006e\u0075\u006c\u006c"{_efb :=_dad [0:len (_dad )-4];_bb .Log .Debug ("\u0054\u0061\u006b\u0069n\u0067\u0020\u0063\u0061\u0072\u0065\u0020\u006f\u0066\u0020n\u0075l\u006c\u0020\u0062\u0075\u0067\u0020\u0028%\u0073\u0029",_dad );_bb .Log .Debug ("\u004e\u0065\u0077\u0020ke\u0079\u0020\u0022\u0025\u0073\u0022\u0020\u003d\u0020\u006e\u0075\u006c\u006c",_efb );_bfd .skipSpaces ();_beaf ,_ :=_bfd ._afd .Peek (1);if _beaf [0]=='/'{_ccc .Set (_efb ,_ff .MakeNull ());continue ;};};_bfd .skipSpaces ();_def ,_efa :=_bfd .parseObject ();if _efa !=nil {return nil ,_efa ;};_ccc .Set (_dad ,_def );_bb .Log .Trace ("\u0064\u0069\u0063\u0074\u005b\u0025\u0073\u005d\u0020\u003d\u0020\u0025\u0073",_dad ,_def .String ());};_bb .Log .Trace ("\u0072\u0065\u0074\u0075rn\u0069\u006e\u0067\u0020\u0046\u0044\u0046\u0020\u0044\u0069\u0063\u0074\u0021");return _ccc ,nil ;};

// Data represents forms data format (FDF) file data.
type Data struct{_bf *_ff .PdfObjectDictionary ;_ed *_ff .PdfObjectArray ;};func (_eeb *fdfParser )getFileOffset ()int64 {_facc ,_ :=_eeb ._ede .Seek (0,_fac .SeekCurrent );_facc -=int64 (_eeb ._afd .Buffered ());return _facc ;};func _acc (_fga _fac .ReadSeeker )(*fdfParser ,error ){_bgaef :=&fdfParser {};_bgaef ._ede =_fga ;_bgaef ._cf =map[int64 ]_ff .PdfObject {};_gbb ,_add ,_dee :=_bgaef .parseFdfVersion ();if _dee !=nil {_bb .Log .Error ("U\u006e\u0061\u0062\u006c\u0065\u0020t\u006f\u0020\u0070\u0061\u0072\u0073\u0065\u0020\u0076e\u0072\u0073\u0069o\u006e:\u0020\u0025\u0076",_dee );return nil ,_dee ;};_bgaef ._eaf =_gbb ;_bgaef ._gd =_add ;_dee =_bgaef .parse ();return _bgaef ,_dee ;};

// FieldDictionaries returns a map of field names to field dictionaries.
func (fdf *Data )FieldDictionaries ()(map[string ]*_ff .PdfObjectDictionary ,error ){_bea :=map[string ]*_ff .PdfObjectDictionary {};for _gg :=0;_gg < fdf ._ed .Len ();_gg ++{_d ,_ec :=_ff .GetDict (fdf ._ed .Get (_gg ));if _ec {_ee ,_ :=_ff .GetString (_d .Get ("\u0054"));if _ee !=nil {_bea [_ee .Str ()]=_d ;};};};return _bea ,nil ;};func (_fcc *fdfParser )parseHexString ()(*_ff .PdfObjectString ,error ){_fcc ._afd .ReadByte ();var _cff _b .Buffer ;for {_bgbc ,_dbd :=_fcc ._afd .Peek (1);if _dbd !=nil {return _ff .MakeHexString (""),_dbd ;};if _bgbc [0]=='>'{_fcc ._afd .ReadByte ();break ;};_dbf ,_ :=_fcc ._afd .ReadByte ();if !_ff .IsWhiteSpace (_dbf ){_cff .WriteByte (_dbf );};};if _cff .Len ()%2==1{_cff .WriteRune ('0');};_bgbg ,_bec :=_fa .DecodeString (_cff .String ());if _bec !=nil {_bb .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u0020\u0050\u0061\u0072\u0073\u0069\u006e\u0067\u0020\u0068\u0065\u0078\u0020\u0073\u0074r\u0069\u006e\u0067\u003a\u0020\u0027\u0025\u0073\u0027 \u002d\u0020\u0072\u0065\u0074\u0075\u0072\u006e\u0069\u006e\u0067\u0020\u0061n\u0020\u0065\u006d\u0070\u0074\u0079 \u0073\u0074\u0072i\u006e\u0067",_cff .String ());return _ff .MakeHexString (""),nil ;};return _ff .MakeHexString (string (_bgbg )),nil ;};func (_fgc *fdfParser )parseIndirectObject ()(_ff .PdfObject ,error ){_cea :=_ff .PdfIndirectObject {};_bb .Log .Trace ("\u002dR\u0065a\u0064\u0020\u0069\u006e\u0064i\u0072\u0065c\u0074\u0020\u006f\u0062\u006a");_gac ,_dfb :=_fgc ._afd .Peek (20);if _dfb !=nil {_bb .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020\u0046\u0061\u0069\u006c\u0020\u0074\u006f\u0020r\u0065a\u0064\u0020\u0069\u006e\u0064\u0069\u0072\u0065\u0063\u0074\u0020\u006f\u0062\u006a");return &_cea ,_dfb ;};_bb .Log .Trace ("\u0028\u0069\u006edi\u0072\u0065\u0063\u0074\u0020\u006f\u0062\u006a\u0020\u0070\u0065\u0065\u006b\u0020\u0022\u0025\u0073\u0022",string (_gac ));_bbe :=_cc .FindStringSubmatchIndex (string (_gac ));if len (_bbe )< 6{_bb .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020U\u006e\u0061\u0062l\u0065\u0020\u0074\u006f \u0066\u0069\u006e\u0064\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065\u0020\u0028\u0025\u0073\u0029",string (_gac ));return &_cea ,_a .New ("\u0075\u006e\u0061b\u006c\u0065\u0020\u0074\u006f\u0020\u0064\u0065\u0074\u0065\u0063\u0074\u0020\u0069\u006e\u0064\u0069\u0072\u0065\u0063\u0074\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065");};_fgc ._afd .Discard (_bbe [0]);_bb .Log .Trace ("O\u0066\u0066\u0073\u0065\u0074\u0073\u0020\u0025\u0020\u0064",_bbe );_cfbg :=_bbe [1]-_bbe [0];_ebf :=make ([]byte ,_cfbg );_ ,_dfb =_fgc .readAtLeast (_ebf ,_cfbg );if _dfb !=nil {_bb .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020\u0075\u006e\u0061\u0062l\u0065\u0020\u0074\u006f\u0020\u0072\u0065\u0061\u0064\u0020-\u0020\u0025\u0073",_dfb );return nil ,_dfb ;};_bb .Log .Trace ("\u0074\u0065\u0078t\u006c\u0069\u006e\u0065\u003a\u0020\u0025\u0073",_ebf );_fdd :=_cc .FindStringSubmatch (string (_ebf ));if len (_fdd )< 3{_bb .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020U\u006e\u0061\u0062l\u0065\u0020\u0074\u006f \u0066\u0069\u006e\u0064\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065\u0020\u0028\u0025\u0073\u0029",string (_ebf ));return &_cea ,_a .New ("\u0075\u006e\u0061b\u006c\u0065\u0020\u0074\u006f\u0020\u0064\u0065\u0074\u0065\u0063\u0074\u0020\u0069\u006e\u0064\u0069\u0072\u0065\u0063\u0074\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065");};_dce ,_ :=_aa .Atoi (_fdd [1]);_ece ,_ :=_aa .Atoi (_fdd [2]);_cea .ObjectNumber =int64 (_dce );_cea .GenerationNumber =int64 (_ece );for {_afb ,_eff :=_fgc ._afd .Peek (2);if _eff !=nil {return &_cea ,_eff ;};_bb .Log .Trace ("I\u006ed\u002e\u0020\u0070\u0065\u0065\u006b\u003a\u0020%\u0073\u0020\u0028\u0025 x\u0029\u0021",string (_afb ),string (_afb ));if _ff .IsWhiteSpace (_afb [0]){_fgc .skipSpaces ();}else if _afb [0]=='%'{_fgc .skipComments ();}else if (_afb [0]=='<')&&(_afb [1]=='<'){_bb .Log .Trace ("\u0043\u0061\u006c\u006c\u0020\u0050\u0061\u0072\u0073e\u0044\u0069\u0063\u0074");_cea .PdfObject ,_eff =_fgc .parseDict ();_bb .Log .Trace ("\u0045\u004f\u0046\u0020Ca\u006c\u006c\u0020\u0050\u0061\u0072\u0073\u0065\u0044\u0069\u0063\u0074\u003a\u0020%\u0076",_eff );if _eff !=nil {return &_cea ,_eff ;};_bb .Log .Trace ("\u0050\u0061\u0072\u0073\u0065\u0064\u0020\u0064\u0069\u0063t\u0069\u006f\u006e\u0061\u0072\u0079\u002e.\u002e\u0020\u0066\u0069\u006e\u0069\u0073\u0068\u0065\u0064\u002e");}else if (_afb [0]=='/')||(_afb [0]=='(')||(_afb [0]=='[')||(_afb [0]=='<'){_cea .PdfObject ,_eff =_fgc .parseObject ();if _eff !=nil {return &_cea ,_eff ;};_bb .Log .Trace ("P\u0061\u0072\u0073\u0065\u0064\u0020o\u0062\u006a\u0065\u0063\u0074\u0020\u002e\u002e\u002e \u0066\u0069\u006ei\u0073h\u0065\u0064\u002e");}else {if _afb [0]=='e'{_eefg ,_dae :=_fgc .readTextLine ();if _dae !=nil {return nil ,_dae ;};if len (_eefg )>=6&&_eefg [0:6]=="\u0065\u006e\u0064\u006f\u0062\u006a"{break ;};}else if _afb [0]=='s'{_afb ,_ =_fgc ._afd .Peek (10);if string (_afb [:6])=="\u0073\u0074\u0072\u0065\u0061\u006d"{_bace :=6;if len (_afb )> 6{if _ff .IsWhiteSpace (_afb [_bace ])&&_afb [_bace ]!='\r'&&_afb [_bace ]!='\n'{_bb .Log .Debug ("\u004e\u006fn\u002d\u0063\u006f\u006e\u0066\u006f\u0072\u006d\u0061\u006e\u0074\u0020\u0046\u0044\u0046\u0020\u006e\u006f\u0074 \u0065\u006e\u0064\u0069\u006e\u0067 \u0073\u0074\u0072\u0065\u0061\u006d\u0020\u006c\u0069\u006e\u0065\u0020\u0070\u0072o\u0070\u0065r\u006c\u0079\u0020\u0077i\u0074\u0068\u0020\u0045\u004fL\u0020\u006d\u0061\u0072\u006b\u0065\u0072");_bace ++;};if _afb [_bace ]=='\r'{_bace ++;if _afb [_bace ]=='\n'{_bace ++;};}else if _afb [_bace ]=='\n'{_bace ++;};};_fgc ._afd .Discard (_bace );_fdf ,_bgg :=_cea .PdfObject .(*_ff .PdfObjectDictionary );if !_bgg {return nil ,_a .New ("\u0073\u0074\u0072\u0065\u0061\u006d\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020\u006di\u0073s\u0069\u006e\u0067\u0020\u0064\u0069\u0063\u0074\u0069\u006f\u006e\u0061\u0072\u0079");};_bb .Log .Trace ("\u0053\u0074\u0072\u0065\u0061\u006d\u0020\u0064\u0069c\u0074\u0020\u0025\u0073",_fdf );_bdg ,_ccf :=_fdf .Get ("\u004c\u0065\u006e\u0067\u0074\u0068").(*_ff .PdfObjectInteger );if !_ccf {return nil ,_a .New ("\u0073\u0074re\u0061\u006d\u0020l\u0065\u006e\u0067\u0074h n\u0065ed\u0073\u0020\u0074\u006f\u0020\u0062\u0065 a\u006e\u0020\u0069\u006e\u0074\u0065\u0067e\u0072");};_bgae :=*_bdg ;if _bgae < 0{return nil ,_a .New ("\u0073\u0074\u0072\u0065\u0061\u006d\u0020\u006e\u0065\u0065\u0064\u0073\u0020\u0074\u006f \u0062e\u0020\u006c\u006f\u006e\u0067\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0030");};if int64 (_bgae )> _fgc ._baa {_bb .Log .Debug ("\u0045\u0052R\u004f\u0052\u003a\u0020\u0053t\u0072\u0065\u0061\u006d\u0020l\u0065\u006e\u0067\u0074\u0068\u0020\u0063\u0061\u006e\u006e\u006f\u0074\u0020\u0062\u0065\u0020\u006c\u0061\u0072\u0067\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0066\u0069\u006c\u0065\u0020\u0073\u0069\u007a\u0065");return nil ,_a .New ("\u0069n\u0076\u0061l\u0069\u0064\u0020\u0073t\u0072\u0065\u0061m\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u002c\u0020la\u0072\u0067\u0065r\u0020\u0074h\u0061\u006e\u0020\u0066\u0069\u006ce\u0020\u0073i\u007a\u0065");};_ffg :=make ([]byte ,_bgae );_ ,_eff =_fgc .readAtLeast (_ffg ,int (_bgae ));if _eff !=nil {_bb .Log .Debug ("E\u0052\u0052\u004f\u0052 s\u0074r\u0065\u0061\u006d\u0020\u0028%\u0064\u0029\u003a\u0020\u0025\u0058",len (_ffg ),_ffg );_bb .Log .Debug ("\u0045R\u0052\u004f\u0052\u003a\u0020\u0025v",_eff );return nil ,_eff ;};_bgbd :=_ff .PdfObjectStream {};_bgbd .Stream =_ffg ;_bgbd .PdfObjectDictionary =_cea .PdfObject .(*_ff .PdfObjectDictionary );_bgbd .ObjectNumber =_cea .ObjectNumber ;_bgbd .GenerationNumber =_cea .GenerationNumber ;_fgc .skipSpaces ();_fgc ._afd .Discard (9);_fgc .skipSpaces ();return &_bgbd ,nil ;};};_cea .PdfObject ,_eff =_fgc .parseObject ();return &_cea ,_eff ;};};_bb .Log .Trace ("\u0052\u0065\u0074\u0075rn\u0069\u006e\u0067\u0020\u0069\u006e\u0064\u0069\u0072\u0065\u0063\u0074\u0021");return &_cea ,nil ;};func (_dag *fdfParser )parse ()error {_dag ._ede .Seek (0,_fac .SeekStart );_dag ._afd =_e .NewReader (_dag ._ede );for {_dag .skipComments ();_gdc ,_egb :=_dag ._afd .Peek (20);if _egb !=nil {_bb .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020\u0046\u0061\u0069\u006c\u0020\u0074\u006f\u0020r\u0065a\u0064\u0020\u0069\u006e\u0064\u0069\u0072\u0065\u0063\u0074\u0020\u006f\u0062\u006a");return _egb ;};if _f .HasPrefix (string (_gdc ),"\u0074r\u0061\u0069\u006c\u0065\u0072"){_dag ._afd .Discard (7);_dag .skipSpaces ();_dag .skipComments ();_deeg ,_ :=_dag .parseDict ();_dag ._eae =_deeg ;break ;};_gcag :=_cc .FindStringSubmatchIndex (string (_gdc ));if len (_gcag )< 6{_bb .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020U\u006e\u0061\u0062l\u0065\u0020\u0074\u006f \u0066\u0069\u006e\u0064\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065\u0020\u0028\u0025\u0073\u0029",string (_gdc ));return _a .New ("\u0075\u006e\u0061b\u006c\u0065\u0020\u0074\u006f\u0020\u0064\u0065\u0074\u0065\u0063\u0074\u0020\u0069\u006e\u0064\u0069\u0072\u0065\u0063\u0074\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065");};_dgg ,_egb :=_dag .parseIndirectObject ();if _egb !=nil {return _egb ;};switch _agb :=_dgg .(type ){case *_ff .PdfIndirectObject :_dag ._cf [_agb .ObjectNumber ]=_agb ;case *_ff .PdfObjectStream :_dag ._cf [_agb .ObjectNumber ]=_agb ;default:return _a .New ("\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};};return nil ;};var _fda =_c .MustCompile ("\u0025F\u0044F\u002d\u0028\u005c\u0064\u0029\u005c\u002e\u0028\u005c\u0064\u0029");func (_ddg *fdfParser )parseObject ()(_ff .PdfObject ,error ){_bb .Log .Trace ("\u0052e\u0061d\u0020\u0064\u0069\u0072\u0065c\u0074\u0020o\u0062\u006a\u0065\u0063\u0074");_ddg .skipSpaces ();for {_egg ,_bgf :=_ddg ._afd .Peek (2);if _bgf !=nil {return nil ,_bgf ;};_bb .Log .Trace ("\u0050e\u0065k\u0020\u0073\u0074\u0072\u0069\u006e\u0067\u003a\u0020\u0025\u0073",string (_egg ));if _egg [0]=='/'{_cac ,_bgbca :=_ddg .parseName ();_bb .Log .Trace ("\u002d\u003e\u004ea\u006d\u0065\u003a\u0020\u0027\u0025\u0073\u0027",_cac );return &_cac ,_bgbca ;}else if _egg [0]=='('{_bb .Log .Trace ("\u002d>\u0053\u0074\u0072\u0069\u006e\u0067!");return _ddg .parseString ();}else if _egg [0]=='['{_bb .Log .Trace ("\u002d\u003e\u0041\u0072\u0072\u0061\u0079\u0021");return _ddg .parseArray ();}else if (_egg [0]=='<')&&(_egg [1]=='<'){_bb .Log .Trace ("\u002d>\u0044\u0069\u0063\u0074\u0021");return _ddg .parseDict ();}else if _egg [0]=='<'{_bb .Log .Trace ("\u002d\u003e\u0048\u0065\u0078\u0020\u0073\u0074\u0072\u0069\u006e\u0067\u0021");return _ddg .parseHexString ();}else if _egg [0]=='%'{_ddg .readComment ();_ddg .skipSpaces ();}else {_bb .Log .Trace ("\u002d\u003eN\u0075\u006d\u0062e\u0072\u0020\u006f\u0072\u0020\u0072\u0065\u0066\u003f");_egg ,_ =_ddg ._afd .Peek (15);_dca :=string (_egg );_bb .Log .Trace ("\u0050\u0065\u0065k\u0020\u0073\u0074\u0072\u003a\u0020\u0025\u0073",_dca );if (len (_dca )> 3)&&(_dca [:4]=="\u006e\u0075\u006c\u006c"){_ecb ,_ceb :=_ddg .parseNull ();return &_ecb ,_ceb ;}else if (len (_dca )> 4)&&(_dca [:5]=="\u0066\u0061\u006cs\u0065"){_ebg ,_ddbg :=_ddg .parseBool ();return &_ebg ,_ddbg ;}else if (len (_dca )> 3)&&(_dca [:4]=="\u0074\u0072\u0075\u0065"){_ebc ,_aefc :=_ddg .parseBool ();return &_ebc ,_aefc ;};_ebb :=_afc .FindStringSubmatch (string (_dca ));if len (_ebb )> 1{_egg ,_ =_ddg ._afd .ReadBytes ('R');_bb .Log .Trace ("\u002d\u003e\u0020\u0021\u0052\u0065\u0066\u003a\u0020\u0027\u0025\u0073\u0027",string (_egg [:]));_aga ,_dgf :=_cddb (string (_egg ));return &_aga ,_dgf ;};_bdb :=_gge .FindStringSubmatch (string (_dca ));if len (_bdb )> 1{_bb .Log .Trace ("\u002d\u003e\u0020\u004e\u0075\u006d\u0062\u0065\u0072\u0021");return _ddg .parseNumber ();};_bdb =_dec .FindStringSubmatch (string (_dca ));if len (_bdb )> 1{_bb .Log .Trace ("\u002d\u003e\u0020\u0045xp\u006f\u006e\u0065\u006e\u0074\u0069\u0061\u006c\u0020\u004e\u0075\u006d\u0062\u0065r\u0021");_bb .Log .Trace ("\u0025\u0020\u0073",_bdb );return _ddg .parseNumber ();};_bb .Log .Debug ("\u0045R\u0052\u004f\u0052\u0020U\u006e\u006b\u006e\u006f\u0077n\u0020(\u0070e\u0065\u006b\u0020\u0022\u0025\u0073\u0022)",_dca );return nil ,_a .New ("\u006f\u0062\u006a\u0065\u0063t\u0020\u0070\u0061\u0072\u0073\u0069\u006e\u0067\u0020\u0065\u0072\u0072\u006fr\u0020\u002d\u0020\u0075\u006e\u0065\u0078\u0070\u0065\u0063\u0074\u0065\u0064\u0020\u0070\u0061\u0074\u0074\u0065\u0072\u006e");};};};func _cddb (_ddb string )(_ff .PdfObjectReference ,error ){_fg :=_ff .PdfObjectReference {};_adf :=_afc .FindStringSubmatch (string (_ddb ));if len (_adf )< 3{_bb .Log .Debug ("\u0045\u0072\u0072or\u0020\u0070\u0061\u0072\u0073\u0069\u006e\u0067\u0020\u0072\u0065\u0066\u0065\u0072\u0065\u006e\u0063\u0065");return _fg ,_a .New ("\u0075n\u0061\u0062\u006c\u0065 \u0074\u006f\u0020\u0070\u0061r\u0073e\u0020r\u0065\u0066\u0065\u0072\u0065\u006e\u0063e");};_dbff ,_aee :=_aa .Atoi (_adf [1]);if _aee !=nil {_bb .Log .Debug ("\u0045\u0072\u0072\u006f\u0072\u0020\u0070a\u0072\u0073\u0069n\u0067\u0020\u006fb\u006a\u0065c\u0074\u0020\u006e\u0075\u006d\u0062e\u0072 '\u0025\u0073\u0027\u0020\u002d\u0020\u0055\u0073\u0069\u006e\u0067\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020\u006e\u0075\u006d\u0020\u003d\u0020\u0030",_adf [1]);return _fg ,nil ;};_fg .ObjectNumber =int64 (_dbff );_gfd ,_aee :=_aa .Atoi (_adf [2]);if _aee !=nil {_bb .Log .Debug ("\u0045\u0072r\u006f\u0072\u0020\u0070\u0061r\u0073\u0069\u006e\u0067\u0020g\u0065\u006e\u0065\u0072\u0061\u0074\u0069\u006f\u006e\u0020\u006e\u0075\u006d\u0062\u0065\u0072\u0020\u0027\u0025\u0073\u0027\u0020\u002d\u0020\u0055\u0073\u0069\u006e\u0067\u0020\u0067\u0065\u006e\u0020\u003d\u0020\u0030",_adf [2]);return _fg ,nil ;};_fg .GenerationNumber =int64 (_gfd );return _fg ,nil ;};func (_debg *fdfParser )readTextLine ()(string ,error ){var _fdag _b .Buffer ;for {_eaa ,_afcd :=_debg ._afd .Peek (1);if _afcd !=nil {_bb .Log .Debug ("\u0045\u0072\u0072\u006f\u0072\u0020\u0025\u0073",_afcd .Error ());return _fdag .String (),_afcd ;};if (_eaa [0]!='\r')&&(_eaa [0]!='\n'){_dc ,_ :=_debg ._afd .ReadByte ();_fdag .WriteByte (_dc );}else {break ;};};return _fdag .String (),nil ;};func (_ddd *fdfParser )readComment ()(string ,error ){var _ge _b .Buffer ;_ ,_fc :=_ddd .skipSpaces ();if _fc !=nil {return _ge .String (),_fc ;};_fce :=true ;for {_gfe ,_eb :=_ddd ._afd .Peek (1);if _eb !=nil {_bb .Log .Debug ("\u0045\u0072\u0072\u006f\u0072\u0020\u0025\u0073",_eb .Error ());return _ge .String (),_eb ;};if _fce &&_gfe [0]!='%'{return _ge .String (),_a .New ("c\u006f\u006d\u006d\u0065\u006e\u0074 \u0073\u0068\u006f\u0075\u006c\u0064\u0020\u0073\u0074a\u0072\u0074\u0020w\u0069t\u0068\u0020\u0025");};_fce =false ;if (_gfe [0]!='\r')&&(_gfe [0]!='\n'){_cdd ,_ :=_ddd ._afd .ReadByte ();_ge .WriteByte (_cdd );}else {break ;};};return _ge .String (),nil ;};

// Root returns the Root of the FDF document.
func (_bead *fdfParser )Root ()(*_ff .PdfObjectDictionary ,error ){if _bead ._eae !=nil {if _adfd ,_cfab :=_bead .trace (_bead ._eae .Get ("\u0052\u006f\u006f\u0074")).(*_ff .PdfObjectDictionary );_cfab {if _gfa ,_bacb :=_bead .trace (_adfd .Get ("\u0046\u0044\u0046")).(*_ff .PdfObjectDictionary );_bacb {return _gfa ,nil ;};};};var _efc []int64 ;for _adg :=range _bead ._cf {_efc =append (_efc ,_adg );};_ga .Slice (_efc ,func (_dbdf ,_fceg int )bool {return _efc [_dbdf ]< _efc [_fceg ]});for _ ,_bacee :=range _efc {_feb :=_bead ._cf [_bacee ];if _fadb ,_bdd :=_bead .trace (_feb ).(*_ff .PdfObjectDictionary );_bdd {if _gde ,_dcf :=_bead .trace (_fadb .Get ("\u0046\u0044\u0046")).(*_ff .PdfObjectDictionary );_dcf {return _gde ,nil ;};};};return nil ,_a .New ("\u0046\u0044\u0046\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075\u006e\u0064");};var _gge =_c .MustCompile ("\u005e\u005b\u005c\u002b\u002d\u002e\u005d\u002a\u0028\u005b\u0030\u002d9\u002e\u005d\u002b\u0029");func (_gcg *fdfParser )trace (_adfe _ff .PdfObject )_ff .PdfObject {switch _geb :=_adfe .(type ){case *_ff .PdfObjectReference :_bgbcb ,_gcab :=_gcg ._cf [_geb .ObjectNumber ].(*_ff .PdfIndirectObject );if _gcab {return _bgbcb .PdfObject ;};_bb .Log .Debug ("\u0054\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");return nil ;case *_ff .PdfIndirectObject :return _geb .PdfObject ;};return _adfe ;};

// Load loads FDF form data from `r`.
func Load (r _fac .ReadSeeker )(*Data ,error ){_gcf ,_fag :=_acc (r );if _fag !=nil {return nil ,_fag ;};_fe ,_fag :=_gcf .Root ();if _fag !=nil {return nil ,_fag ;};_be ,_ae :=_ff .GetArray (_fe .Get ("\u0046\u0069\u0065\u006c\u0064\u0073"));if !_ae {return nil ,_a .New ("\u0066\u0069\u0065\u006c\u0064\u0073\u0020\u006d\u0069s\u0073\u0069\u006e\u0067");};return &Data {_ed :_be ,_bf :_fe },nil ;};func _bfa (_aeb string )(*fdfParser ,error ){_cfde :=fdfParser {};_acd :=[]byte (_aeb );_ecbf :=_b .NewReader (_acd );_cfde ._ede =_ecbf ;_cfde ._cf =map[int64 ]_ff .PdfObject {};_dgfb :=_e .NewReader (_ecbf );_cfde ._afd =_dgfb ;_cfde ._baa =int64 (len (_aeb ));return &_cfde ,_cfde .parse ();};func (_cfb *fdfParser )parseName ()(_ff .PdfObjectName ,error ){var _faf _b .Buffer ;_edaa :=false ;for {_gdb ,_ab :=_cfb ._afd .Peek (1);if _ab ==_fac .EOF {break ;};if _ab !=nil {return _ff .PdfObjectName (_faf .String ()),_ab ;};if !_edaa {if _gdb [0]=='/'{_edaa =true ;_cfb ._afd .ReadByte ();}else if _gdb [0]=='%'{_cfb .readComment ();_cfb .skipSpaces ();}else {_bb .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u0020N\u0061\u006d\u0065\u0020\u0073\u0074\u0061\u0072\u0074\u0069\u006e\u0067\u0020w\u0069\u0074\u0068\u0020\u0025\u0073\u0020(\u0025\u0020\u0078\u0029",_gdb ,_gdb );return _ff .PdfObjectName (_faf .String ()),_ca .Errorf ("\u0069n\u0076a\u006c\u0069\u0064\u0020\u006ea\u006d\u0065:\u0020\u0028\u0025\u0063\u0029",_gdb [0]);};}else {if _ff .IsWhiteSpace (_gdb [0]){break ;}else if (_gdb [0]=='/')||(_gdb [0]=='[')||(_gdb [0]=='(')||(_gdb [0]==']')||(_gdb [0]=='<')||(_gdb [0]=='>'){break ;}else if _gdb [0]=='#'{_eag ,_fff :=_cfb ._afd .Peek (3);if _fff !=nil {return _ff .PdfObjectName (_faf .String ()),_fff ;};_cfb ._afd .Discard (3);_aafe ,_fff :=_fa .DecodeString (string (_eag [1:3]));if _fff !=nil {return _ff .PdfObjectName (_faf .String ()),_fff ;};_faf .Write (_aafe );}else {_aef ,_ :=_cfb ._afd .ReadByte ();_faf .WriteByte (_aef );};};};return _ff .PdfObjectName (_faf .String ()),nil ;};func (_bece *fdfParser )parseNull ()(_ff .PdfObjectNull ,error ){_ ,_dgc :=_bece ._afd .Discard (4);return _ff .PdfObjectNull {},_dgc ;};func (_dg *fdfParser )readAtLeast (_eef []byte ,_ba int )(int ,error ){_bff :=_ba ;_cad :=0;_gad :=0;for _bff > 0{_gf ,_da :=_dg ._afd .Read (_eef [_cad :]);if _da !=nil {_bb .Log .Debug ("\u0045\u0052\u0052O\u0052\u0020\u0046\u0061i\u006c\u0065\u0064\u0020\u0072\u0065\u0061d\u0069\u006e\u0067\u0020\u0028\u0025\u0064\u003b\u0025\u0064\u0029\u0020\u0025\u0073",_gf ,_gad ,_da .Error ());return _cad ,_a .New ("\u0066\u0061\u0069\u006c\u0065\u0064\u0020\u0072\u0065a\u0064\u0069\u006e\u0067");};_gad ++;_cad +=_gf ;_bff -=_gf ;};return _cad ,nil ;};var _afc =_c .MustCompile ("^\u005c\u0073\u002a\u0028\\d\u002b)\u005c\u0073\u002b\u0028\u005cd\u002b\u0029\u005c\u0073\u002b\u0052");func (_bged *fdfParser )seekFdfVersionTopDown ()(int ,int ,error ){_bged ._ede .Seek (0,_fac .SeekStart );_bged ._afd =_e .NewReader (_bged ._ede );_dfg :=20;_ced :=make ([]byte ,_dfg );for {_cgc ,_fca :=_bged ._afd .ReadByte ();if _fca !=nil {if _fca ==_fac .EOF {break ;}else {return 0,0,_fca ;};};if _ff .IsDecimalDigit (_cgc )&&_ced [_dfg -1]=='.'&&_ff .IsDecimalDigit (_ced [_dfg -2])&&_ced [_dfg -3]=='-'&&_ced [_dfg -4]=='F'&&_ced [_dfg -5]=='D'&&_ced [_dfg -6]=='P'{_bag :=int (_ced [_dfg -2]-'0');_dbac :=int (_cgc -'0');return _bag ,_dbac ,nil ;};_ced =append (_ced [1:_dfg ],_cgc );};return 0,0,_a .New ("\u0076\u0065\u0072\u0073\u0069\u006f\u006e\u0020\u006e\u006f\u0074\u0020f\u006f\u0075\u006e\u0064");};func (_aea *fdfParser )parseString ()(*_ff .PdfObjectString ,error ){_aea ._afd .ReadByte ();var _dea _b .Buffer ;_aec :=1;for {_eg ,_bac :=_aea ._afd .Peek (1);if _bac !=nil {return _ff .MakeString (_dea .String ()),_bac ;};if _eg [0]=='\\'{_aea ._afd .ReadByte ();_fbc ,_bgd :=_aea ._afd .ReadByte ();if _bgd !=nil {return _ff .MakeString (_dea .String ()),_bgd ;};if _ff .IsOctalDigit (_fbc ){_bge ,_dcg :=_aea ._afd .Peek (2);if _dcg !=nil {return _ff .MakeString (_dea .String ()),_dcg ;};var _daag []byte ;_daag =append (_daag ,_fbc );for _ ,_fagb :=range _bge {if _ff .IsOctalDigit (_fagb ){_daag =append (_daag ,_fagb );}else {break ;};};_aea ._afd .Discard (len (_daag )-1);_bb .Log .Trace ("\u004e\u0075\u006d\u0065ri\u0063\u0020\u0073\u0074\u0072\u0069\u006e\u0067\u0020\u0022\u0025\u0073\u0022",_daag );_ce ,_dcg :=_aa .ParseUint (string (_daag ),8,32);if _dcg !=nil {return _ff .MakeString (_dea .String ()),_dcg ;};_dea .WriteByte (byte (_ce ));continue ;};switch _fbc {case 'n':_dea .WriteRune ('\n');case 'r':_dea .WriteRune ('\r');case 't':_dea .WriteRune ('\t');case 'b':_dea .WriteRune ('\b');case 'f':_dea .WriteRune ('\f');case '(':_dea .WriteRune ('(');case ')':_dea .WriteRune (')');case '\\':_dea .WriteRune ('\\');};continue ;}else if _eg [0]=='('{_aec ++;}else if _eg [0]==')'{_aec --;if _aec ==0{_aea ._afd .ReadByte ();break ;};};_eafb ,_ :=_aea ._afd .ReadByte ();_dea .WriteByte (_eafb );};return _ff .MakeString (_dea .String ()),nil ;};func (_ag *fdfParser )skipComments ()error {if _ ,_cca :=_ag .skipSpaces ();_cca !=nil {return _cca ;};_bd :=true ;for {_deb ,_gadb :=_ag ._afd .Peek (1);if _gadb !=nil {_bb .Log .Debug ("\u0045\u0072\u0072\u006f\u0072\u0020\u0025\u0073",_gadb .Error ());return _gadb ;};if _bd &&_deb [0]!='%'{return nil ;};_bd =false ;if (_deb [0]!='\r')&&(_deb [0]!='\n'){_ag ._afd .ReadByte ();}else {break ;};};return _ag .skipComments ();};var _gff =_c .MustCompile ("\u0025\u0025\u0045O\u0046");func (_dfa *fdfParser )parseFdfVersion ()(int ,int ,error ){_dfa ._ede .Seek (0,_fac .SeekStart );_agg :=20;_edab :=make ([]byte ,_agg );_dfa ._ede .Read (_edab );_gag :=_fda .FindStringSubmatch (string (_edab ));if len (_gag )< 3{_cce ,_bga ,_aeaa :=_dfa .seekFdfVersionTopDown ();if _aeaa !=nil {_bb .Log .Debug ("F\u0061\u0069\u006c\u0065\u0064\u0020\u0072\u0065\u0063\u006f\u0076\u0065\u0072\u0079\u0020\u002d\u0020\u0075n\u0061\u0062\u006c\u0065\u0020\u0074\u006f\u0020\u0066\u0069nd\u0020\u0076\u0065r\u0073i\u006f\u006e");return 0,0,_aeaa ;};return _cce ,_bga ,nil ;};_gda ,_cadb :=_aa .Atoi (_gag [1]);if _cadb !=nil {return 0,0,_cadb ;};_dba ,_cadb :=_aa .Atoi (_gag [2]);if _cadb !=nil {return 0,0,_cadb ;};_bb .Log .Debug ("\u0046\u0064\u0066\u0020\u0076\u0065\u0072\u0073\u0069\u006f\u006e\u0020%\u0064\u002e\u0025\u0064",_gda ,_dba );return int (_gda ),int (_dba ),nil ;};var _dec =_c .MustCompile ("\u005e\u005b\u005c+-\u002e\u005d\u002a\u0028\u005b\u0030\u002d\u0039\u002e]\u002b)\u0065[\u005c+\u002d\u002e\u005d\u002a\u0028\u005b\u0030\u002d\u0039\u002e\u005d\u002b\u0029");func (_fb *fdfParser )skipSpaces ()(int ,error ){_ef :=0;for {_gaa ,_daa :=_fb ._afd .ReadByte ();if _daa !=nil {return 0,_daa ;};if _ff .IsWhiteSpace (_gaa ){_ef ++;}else {_fb ._afd .UnreadByte ();break ;};};return _ef ,nil ;};func (_cd *fdfParser )setFileOffset (_cab int64 ){_cd ._ede .Seek (_cab ,_fac .SeekStart );_cd ._afd =_e .NewReader (_cd ._ede );};

// FieldValues implements interface model.FieldValueProvider.
// Returns a map of field names to values (PdfObjects).
func (fdf *Data )FieldValues ()(map[string ]_ff .PdfObject ,error ){_ffe ,_dd :=fdf .FieldDictionaries ();if _dd !=nil {return nil ,_dd ;};var _ad []string ;for _fd :=range _ffe {_ad =append (_ad ,_fd );};_ga .Strings (_ad );_cb :=map[string ]_ff .PdfObject {};for _ ,_af :=range _ad {_ea :=_ffe [_af ];_bc :=_ff .TraceToDirectObject (_ea .Get ("\u0056"));_cb [_af ]=_bc ;};return _cb ,nil ;};type fdfParser struct{_eaf int ;_gd int ;_cf map[int64 ]_ff .PdfObject ;_ede _fac .ReadSeeker ;_afd *_e .Reader ;_baa int64 ;_eae *_ff .PdfObjectDictionary ;};

// LoadFromPath loads FDF form data from file path `fdfPath`.
func LoadFromPath (fdfPath string )(*Data ,error ){_gb ,_fad :=_gc .Open (fdfPath );if _fad !=nil {return nil ,_fad ;};defer _gb .Close ();return Load (_gb );};func (_cg *fdfParser )parseNumber ()(_ff .PdfObject ,error ){return _ff .ParseNumber (_cg ._afd )};func (_ebbe *fdfParser )seekToEOFMarker (_cddf int64 )error {_gec :=int64 (0);_ac :=int64 (1000);for _gec < _cddf {if _cddf <=(_ac +_gec ){_ac =_cddf -_gec ;};_ ,_cfg :=_ebbe ._ede .Seek (-_gec -_ac ,_fac .SeekEnd );if _cfg !=nil {return _cfg ;};_edf :=make ([]byte ,_ac );_ebbe ._ede .Read (_edf );_bb .Log .Trace ("\u004c\u006f\u006f\u006bi\u006e\u0067\u0020\u0066\u006f\u0072\u0020\u0045\u004f\u0046 \u006da\u0072\u006b\u0065\u0072\u003a\u0020\u0022%\u0073\u0022",string (_edf ));_egf :=_gff .FindAllStringIndex (string (_edf ),-1);if _egf !=nil {_ceea :=_egf [len (_egf )-1];_bb .Log .Trace ("\u0049\u006e\u0064\u003a\u0020\u0025\u0020\u0064",_egf );_ebbe ._ede .Seek (-_gec -_ac +int64 (_ceea [0]),_fac .SeekEnd );return nil ;};_bb .Log .Debug ("\u0057\u0061\u0072\u006e\u0069\u006eg\u003a\u0020\u0045\u004f\u0046\u0020\u006d\u0061\u0072\u006b\u0065\u0072\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075n\u0064\u0021\u0020\u002d\u0020\u0063\u006f\u006e\u0074\u0069\u006e\u0075\u0065\u0020s\u0065e\u006b\u0069\u006e\u0067");_gec +=_ac ;};_bb .Log .Debug ("\u0045\u0072\u0072\u006f\u0072\u003a\u0020\u0045\u004f\u0046\u0020\u006d\u0061\u0072\u006be\u0072 \u0077\u0061\u0073\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075\u006e\u0064\u002e");return _a .New ("\u0045\u004f\u0046\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075\u006e\u0064");};