/* created on 22.09.2008 08:49:12 from peg generator V1.0*/
using Peg.Base;
using System;
using System.IO;
using System.Text;
namespace json_tree
{
enum Ejson_tree{json_text= 1, expect_file_end= 2, @object= 3, members= 4, pair= 5,
array= 6, elements= 7, value= 8, @string= 9, string_content= 10,
number= 11, S= 12, @true= 13, @false= 14, @null= 15};
class json_tree : PegCharParser
{
#region Input Properties
public static EncodingClass encodingClass = EncodingClass.unicode;
public static UnicodeDetection unicodeDetection = UnicodeDetection.FirstCharIsAscii;
#endregion Input Properties
#region Constructors
public json_tree()
: base()
{
}
public json_tree(string src,TextWriter FerrOut)
: base(src,FerrOut)
{
}
#endregion Constructors
#region Overrides
public override string GetRuleNameFromId(int id)
{
try
{
Ejson_tree ruleEnum = (Ejson_tree)id;
string s= ruleEnum.ToString();
int val;
if( int.TryParse(s,out val) ){
return base.GetRuleNameFromId(id);
}else{
return s;
}
}
catch (Exception)
{
return base.GetRuleNameFromId(id);
}
}
public override void GetProperties(out EncodingClass encoding, out UnicodeDetection detection)
{
encoding = encodingClass;
detection = unicodeDetection;
}
#endregion Overrides
#region Grammar Rules
public bool json_text() /*[1]^^json_text:(object / array /
FATAL<"json file must start with '{' or '['">)
expect_file_end;*/
{
return TreeNT((int)Ejson_tree.json_text,()=>
And(()=>
(
@object()
|| array()
|| Fatal("json file must start with '{' or '['"))
&& expect_file_end() ) );
}
public bool expect_file_end() /*[2]expect_file_end:!./ WARNING<"non-json stuff before end of file">;*/
{
return
Not(()=> Any() )
|| Warning("non-json stuff before end of file");
}
public bool @object() /*[3]^^object: S '{' S (&'}'/members) S @'}' S ;*/
{
return TreeNT((int)Ejson_tree.@object,()=>
And(()=>
S()
&& Char('{')
&& S()
&& ( Peek(()=> Char('}') ) || members())
&& S()
&& ( Char('}') || Fatal("<<'}'>> expected"))
&& S() ) );
}
public bool members() /*[4]members: pair S (',' S @pair S)* ;*/
{
return And(()=>
pair()
&& S()
&& OptRepeat(()=>
And(()=>
Char(',')
&& S()
&& ( pair() || Fatal("<<pair>> expected"))
&& S() ) ) );
}
public bool pair() /*[5]^^pair: @string S ':' S value ;*/
{
return TreeNT((int)Ejson_tree.pair,()=>
And(()=>
( @string() || Fatal("<<string>> expected"))
&& S()
&& Char(':')
&& S()
&& value() ) );
}
public bool array() /*[6]^^array: S '[' S (&']'/elements) S @']' S ;*/
{
return TreeNT((int)Ejson_tree.array,()=>
And(()=>
S()
&& Char('[')
&& S()
&& ( Peek(()=> Char(']') ) || elements())
&& S()
&& ( Char(']') || Fatal("<<']'>> expected"))
&& S() ) );
}
public bool elements() /*[7]elements: value S (','S @value S)* ;*/
{
return And(()=>
value()
&& S()
&& OptRepeat(()=>
And(()=>
Char(',')
&& S()
&& ( value() || Fatal("<<value>> expected"))
&& S() ) ) );
}
public bool value() /*[8]value: @(string / number / object /
array / true / false / null);*/
{
return
(
@string()
|| number()
|| @object()
|| array()
|| @true()
|| @false()
|| @null())
|| Fatal("<<(string or number or object or array or true or false or null)>> expected");
}
public bool @string() /*[9]string: '"' string_content '"' ;*/
{
return And(()=> Char('"') && string_content() && Char('"') );
}
public bool string_content() /*[10]^^string_content: ( '\\'
( 'u'([0-9A-Fa-f]{4}/FATAL<"4 hex digits expected">)
/ ["\\/bfnrt]/FATAL<"illegal escape">
)
/ [#x20-#x21#x23-#xFFFF]
)* ;*/
{
return TreeNT((int)Ejson_tree.string_content,()=>
OptRepeat(()=>
And(()=>
Char('\\')
&& (
And(()=>
Char('u')
&& (
ForRepeat(4,4,()=>
In('0','9', 'A','F', 'a','f') )
|| Fatal("4 hex digits expected")) )
|| OneOf(optimizedCharset0)
|| Fatal("illegal escape")) )
|| In('\u0020','\u0021', '\u0023','\uffff') ) );
}
public bool number() /*[11]^^number: '-'? ('0'/[1-9][0-9]*) ('.' [0-9]+)? ([eE] [-+] [0-9]+)?;*/
{
return TreeNT((int)Ejson_tree.number,()=>
And(()=>
Option(()=> Char('-') )
&& (
Char('0')
|| And(()=>
In('1','9')
&& OptRepeat(()=> In('0','9') ) ))
&& Option(()=>
And(()=>
Char('.')
&& PlusRepeat(()=> In('0','9') ) ) )
&& Option(()=>
And(()=>
OneOf("eE")
&& OneOf("-+")
&& PlusRepeat(()=> In('0','9') ) ) ) ) );
}
public bool S() /*[12]S: [ \t\r\n]* ;*/
{
return OptRepeat(()=> OneOf(" \t\r\n") );
}
public bool @true() /*[13]^^true: 'true' ;*/
{
return TreeNT((int)Ejson_tree.@true,()=>
Char('t','r','u','e') );
}
public bool @false() /*[14]^^false: 'false' ;*/
{
return TreeNT((int)Ejson_tree.@false,()=>
Char('f','a','l','s','e') );
}
public bool @null() /*[15]^^null: 'null' ;*/
{
return TreeNT((int)Ejson_tree.@null,()=>
Char('n','u','l','l') );
}
#endregion Grammar Rules
#region Optimization Data
internal static OptimizedCharset optimizedCharset0;
static json_tree()
{
{
char[] oneOfChars = new char[] {'"','\\','/','b','f'
,'n','r','t'};
optimizedCharset0= new OptimizedCharset(null,oneOfChars);
}
}
#endregion Optimization Data
}
}
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