Commit 6572ee58 authored by Emeric Verschuur's avatar Emeric Verschuur
Browse files

JSON parser

parent 1f3d1814

rs/parser.cup

0 → 100644
+47 −0
Changes for rs/parser.cup: 47 added lines, 0 removed lines.
Original line number Diff line number Diff line 
package org.mbedsys.jvar;

/*

 *   Autor: Emeric Verschuur <emericv@mbedsys.org>

 */



import java_cup.runtime.*;



parser code

{:

	public Node root = null;

	

:};



terminal              TEND, TOBJBEGIN, TOBJEND, TARRBEGIN, TARREND;

terminal              TMEMBERSEP, TELEMENTSEP;

terminal              TSYNERRESC, TSYNERRUNI, TSYNERR;

terminal String       TSTRING;

terminal Variant      TVARIANT;





non terminal Variant      members;

non terminal Variant      elements;

non terminal Variant      variant;

non terminal Variant      root;



start with root;



root ::= variant                          {: :}

    | TEND                              {: :}

    ;



variant ::= TOBJBEGIN members TOBJEND     {: :}

    | TARRBEGIN elements TARREND        {: :}

    | TOBJBEGIN TOBJEND                 {: :}

    | TARRBEGIN TARREND                 {: :}

    | TSTRING                           {: :}

    | TVARIANT                          {: :}

    ;



members ::= members TELEMENTSEP

        TSTRING TMEMBERSEP variant       {: :}

    | TSTRING TMEMBERSEP variant         {: :}

    ;



elements ::= elements TELEMENTSEP variant {: :}

    | variant                           {: :}

    ;

rs/scanner.lex

0 → 100644
+138 −0
Changes for rs/scanner.lex: 138 added lines, 0 removed lines.
Original line number Diff line number Diff line 
package org.mbedsys.jvar;



/**

 *   Autor: Emeric Verschuur <emericv@mbedsys.org>

 */



import java.io.EOFException;

import java.io.IOException;

%%



%class JSONScanner

%type JSONTocken

%unicode

%line

%column



%{

	private StringBuffer string = new StringBuffer();

	

	private Variant mkVariantNumber() {

		long v = Long.parseLong(yytext());

		if ((v & 0xFFFFFFFF00000000L) == 0) {

			return new VariantInt((int)v);

		} else {

			return new VariantLong(v);

		}

	}

	

	public boolean ready() throws IOException {

		while (true) {

			if ((zzCurrentPos + 1) < zzEndRead) {

				while ((zzCurrentPos + 1) < zzEndRead) {

					if (Character.isWhitespace(zzBuffer[zzCurrentPos])) {

						zzCurrentPos++;

					} else {

						return true;

					}

				}

			} else if (this.zzReader != null && this.zzReader.ready()) {

				if (zzRefill()) {

					throw new EOFException();

				}

			} else {

				return false;

			}

		}

	}

  

	public int getLine() {

		return yyline;

	}

	

	public int getColumn() {

		return yycolumn;

	}

  

	public int getNbChar() {

		return yychar;

	}

	

	public boolean isAtBOL() {

		return zzAtBOL;

	}

	

	public boolean isEOFDone() {

		return zzEOFDone;

	}

%}



space                   = [\t\n\r ]



kw_null                 = null

kw_undefined            = undefined

kw_true                 = true

kw_false                = false

kw_nan                  = nan

kw_infinity             = [\-\+]?infinity



number                  = \-?[[:digit:]]+

number_ext              = \-?[[:digit:]]+(\.[[:digit:]]+)?(e[\-\+]?[[:digit:]]+)?



coma                    = ,

semicolon               = :

dblcote                 = \"

square_bracket_open     = \[

square_bracket_close    = \]

curly_bracket_open      = \{

curly_bracket_close     = \}



escape_unicode          = \\u[0-9a-f]{4}

escape_backslash        = \\

escape_dblcote          = \\\"

escape_backspace        = \\b

escape_formfeed         = \\f

escape_newline          = \\n

escape_car_ret          = \\r

escape_horiz_tab        = \\t



%state STRING



%%



<<EOF>>                  { yybegin(YYINITIAL); return new JSONTocken(JSONTocken.TEOF);}



<YYINITIAL>{

  {kw_null}                { return new JSONTocken(JSONTocken.TVARIANT, Variant.NULL); }

  {kw_undefined}           { return new JSONTocken(JSONTocken.TVARIANT, Variant.NULL); }

  {kw_true}                { return new JSONTocken(JSONTocken.TVARIANT, Variant.TRUE); }

  {kw_false}               { return new JSONTocken(JSONTocken.TVARIANT, Variant.FALSE); }

  {kw_nan}                 { return new JSONTocken(JSONTocken.TVARIANT, Variant.NULL); }

  {kw_infinity}            { return new JSONTocken(JSONTocken.TVARIANT, Variant.NULL); }

  

  {number}                 { return new JSONTocken(JSONTocken.TVARIANT, mkVariantNumber()); }

  {number_ext}             { return new JSONTocken(JSONTocken.TVARIANT, new VariantDouble(Double.parseDouble(yytext()))); }

  

  {square_bracket_open}    { return new JSONTocken(JSONTocken.TARRBEGIN); }

  {square_bracket_close}   { return new JSONTocken(JSONTocken.TARREND); }

  {curly_bracket_open}     { return new JSONTocken(JSONTocken.TOBJBEGIN); }

  {curly_bracket_close}    { return new JSONTocken(JSONTocken.TOBJEND); }

  {coma}                   { return new JSONTocken(JSONTocken.TELEMENTSEP); }

  {semicolon}              { return new JSONTocken(JSONTocken.TMEMBERSEP); }

  {dblcote}                { string.setLength(0); yybegin(STRING); }

  {space}                  {  }

  .                        { return new JSONTocken(JSONTocken.TSYNERR); }

}



<STRING>{

  {dblcote}                { yybegin(YYINITIAL); return new JSONTocken(JSONTocken.TSTRING, string.toString()); }

  {escape_backspace}       { string.append('\b'); }

  {escape_formfeed}        { string.append('\f'); }

  {escape_horiz_tab}       { string.append('\t'); }

  {escape_newline}         { string.append('\n'); }

  {escape_car_ret}         { string.append('\r'); }

  {escape_dblcote}         { string.append('\"'); }

  {escape_backslash}       { string.append('\\'); }

  {escape_unicode}         { string.append((char)Short.parseShort(yytext().substring(2, 6), 16)); }

  .|{space}                { string.append(yytext()); }

}

src/main/java/org/mbedsys/jvar/KeyNotFoundException.java

+1 −1
Changes for src/main/java/org/mbedsys/jvar/KeyNotFoundException.java: 1 added line, 1 removed line.
Original line number Diff line number Diff line
@@ -25,7 +25,7 @@ public class KeyNotFoundException extends RuntimeException { 
	/**

	 * 

	 */

	private static final long serialVersionUID = 1L;

	private static final long serialVersionUID = -3405718663353821037L;



	public KeyNotFoundException() {

		super();

src/main/java/org/mbedsys/jvar/Variant.java

+756 −35

File changed.

Preview size limit exceeded, changes collapsed.

src/main/java/org/mbedsys/jvar/VariantList.java

+5 −0
Changes for src/main/java/org/mbedsys/jvar/VariantList.java: 5 added lines, 0 removed lines.
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ package org.mbedsys.jvar; 
import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Date;

import java.util.Iterator;
@@ -40,6 +41,10 @@ public class VariantList extends Variant implements List<Variant> { 
		data = value;

	}



	public VariantList() {

		data = new ArrayList<>();

	}



	public VariantList add(boolean value) {

		data.add(new VariantBool(value));

		return this;