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/*
* This software is licensed under the terms of the ISC License.
* (ISCL http://www.opensource.org/licenses/isc-license.txt
* It is functionally equivalent to the 2-clause BSD licence,
* with language "made unnecessary by the Berne convention" removed).
*
* Copyright (c) 2011-2013 Mike Norman
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
* USE OR PERFORMANCE OF THIS SOFTWARE.
*
******************************************************************************/
options {
STATIC = false;
SUPPORT_CLASS_VISIBILITY_PUBLIC = true;
ERROR_REPORTING = false;
JAVA_UNICODE_ESCAPE = true;
UNICODE_INPUT = true;
NODE_USES_PARSER = false;
VISITOR = false;
}
PARSER_BEGIN(JSONParser)
/*
* This software is licensed under the terms of the ISC License.
* (ISCL http://www.opensource.org/licenses/isc-license.txt
* It is functionally equivalent to the 2-clause BSD licence,
* with language "made unnecessary by the Berne convention" removed).
*
* Copyright (c) 2011-2013 Mike Norman
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
* USE OR PERFORMANCE OF THIS SOFTWARE.
*
******************************************************************************/
package org.mwnorman.json;
//javase imports
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
public class JSONParser {
static protected String stripOffQuotes(String quotedString) {
return quotedString.substring(1, quotedString.length() - 1);
}
public static String TRUE_ATOM = stripOffQuotes(tokenImage[K_TRUE]);
public static String FALSE_ATOM = stripOffQuotes(tokenImage[K_FALSE]);
public JSONParser() {
super();
}
//cheat to sorta get generics on productions
public List array() throws ParseException {
return _array();
}
public Map object() throws ParseException {
return _object();
}
}
PARSER_END(JSONParser)
TOKEN_MGR_DECLS :
{
static int commentNesting = 0;
}
// Pls see http://www.ietf.org/rfc/rfc4627.txt for JSON spec details
// white space
SKIP: {
" "
| "\t"
| "\n"
| "\r"
| "\f"
}
// comments: not really part of JSON spec, but parser shouldn't blow-up if present
SKIP: {
//single-line 'C'-style comments
< "//" (~["\n","\r"])* ("\n" | "\r" | "\r\n")>
//single-line Bash-style comments
| < "#" (~["\n","\r"])* ("\n"|"\r"|"\r\n")>
//multi-line 'C'-style comments with counter for nesting
| "/*" { commentNesting++; } : WithinMLC
//multi-line HTML comments (no nesting)
| "" : DEFAULT
}
MORE :
{
<~[]>
}
// JSON reserved keywords (prefix with K_ to avoid naming conflicts): only lower case allowed!
TOKEN: {
|
|
}
// JSON operators (prefix with O_ to avoid naming conflicts)
TOKEN: {
|
|
|
|
|
|
|
|
}
// numeric literals
TOKEN: {
<#DIGIT: [
//Unicode "DIGIT" characters - more inclusive than Character.isDigit
"\u0030"-"\u0039", //DIGIT ZERO - DIGIT NINE
"\u0660"-"\u0669", //ARABIC-INDIC DIGIT ZERO -ARABIC-INDIC DIGIT NINE
"\u06f0"-"\u06f9", //EXTENDED ARABIC-INDIC DIGIT ZERO - EXTENDED ARABIC-INDIC DIGIT NINE
"\u07c0"-"\u07c9", //NKO DIGIT ZERO - NKO DIGIT NINE
"\u0966"-"\u096f", //DEVANAGARI DIGIT ZERO - DEVANAGARI DIGIT NINE
"\u09e6"-"\u09ef", //BENGALI DIGIT ZERO - BENGALI DIGIT NINE
"\u0a66"-"\u0a6f", //GURMUKHI DIGIT ZERO - GURMUKHI DIGIT NINE
"\u0ae6"-"\u0aef", //GUJARATI DIGIT ZERO - GUJARATI DIGIT NINE
"\u0b66"-"\u0b6f", //ORIYA DIGIT ZERO - ORIYA DIGIT NINE
"\u0be6"-"\u0bef", //TAMIL DIGIT ZERO - TAMIL DIGIT NINE
"\u0c66"-"\u0c6f", //TELUGU DIGIT ZERO - TELUGU DIGIT NINE
"\u0ce6"-"\u0cef", //KANNADA DIGIT ZERO - KANNADA DIGIT NINE
"\u0d66"-"\u0d6f", //MALAYALAM DIGIT ZERO - MALAYALAM DIGIT NINE
"\u0e50"-"\u0e59", //THAI DIGIT ZERO - THAI DIGIT NINE
"\u0ed0"-"\u0ed9", //LAO DIGIT ZERO - LAO DIGIT NINE
"\u0f20"-"\u0f29", //TIBETAN DIGIT ZERO - TIBETAN DIGIT NINE
"\u1040"-"\u1049", //MYANMAR DIGIT ZERO - MYANMAR DIGIT NINE
"\u1090"-"\u1099", //MYANMAR SHAN DIGIT ZERO - MYANMAR SHAN DIGIT NINE
"\u1369"-"\u1371", //ETHIOPIC DIGIT ZERO - ETHIOPIC DIGIT NINE
"\u17e0"-"\u17e9", //KHMER DIGIT ZERO - KHMER DIGIT NINE
"\u1810"-"\u1819", //MONGOLIAN DIGIT ZERO - MONGOLIAN DIGIT NINE
"\u1946"-"\u194f", //LIMBU DIGIT ZERO - LIMBU DIGIT NINE
"\u19d0"-"\u19d9", //NEW TAI LUE DIGIT ZERO - NEW TAI LUE DIGIT NINE
"\u1a80"-"\u1a89", //TAI THAM HORA DIGIT ZERO - TAI THAM HORA DIGIT NINE
"\u1a90"-"\u1a99", //TAI THAM THAM DIGIT ZERO - TAI THAM THAM DIGIT NINE
"\u1b50"-"\u1b59", //BALINESE DIGIT ZERO - BALINESE DIGIT NINE
"\u1bb0"-"\u1bb9", //SUNDANESE DIGIT ZERO - SUNDANESE DIGIT NINE
"\u1c40"-"\u1c49", //LEPCHA DIGIT ZERO - LEPCHA DIGIT NINE
"\u1c50"-"\u1c59", //OL CHIKI DIGIT ZERO - OL CHIKI DIGIT NINE
"\ua620"-"\ua629", //VAI DIGIT ZERO - VAI DIGIT NINE
"\ua8d0"-"\ua8d9", //SAURASHTRA DIGIT ZERO - SAURASHTRA DIGIT NINE
"\ua8e0"-"\ua8e9", //COMBINING DEVANAGARI DIGIT ZERO - COMBINING DEVANAGARI DIGIT NINE
"\ua900"-"\ua909", //KAYAH LI DIGIT ZERO - KAYAH LI DIGIT NINE
"\ua9d0"-"\ua9d9", //JAVANESE DIGIT ZERO - JAVANESE DIGIT NINE
"\uaa50"-"\uaa59", //CHAM DIGIT ZERO - CHAM DIGIT NINE
"\uabf0"-"\uabf9", //MEETEI MAYEK DIGIT ZERO - MEETEI MAYEK DIGIT NINE
"\uff10"-"\uff19" //FULLWIDTH DIGIT ZERO -FULLWIDTH DIGIT NINE
] >
| <#EXP: ["e", "E"] ( | )? >
}
// JSON numbers do not support octal or hexadecimal formats
TOKEN: {
| | | >
| )? ( ) > //support leading zeros
| >
| >
| )+ >
}
// string literals
TOKEN: {
|
}
TOKEN: {
( | | "_")* >
| <#LETTER: [
//Unicode "LETTER" characters - as of Javase 6, Unicode 4 is supported
//http://www.unicode.org/Public/4.1.0/ucd/NamesList.txt
//more inclusive than Character.isLetter
"\u0024", //DOLLAR SIGN: milreis, escudo
"\u0041"-"\u005a", //LATIN CAPITAL LETTER A - LATIN CAPITAL LETTER Z
"\u005f", //LOW LINE: spacing underscore
"\u0061"-"\u007a", //LATIN SMALL LETTER A - LATIN SMALL LETTER Z
"\u00aa"-"\u00ad", // 00AA FEMININE ORDINAL INDICATOR: spanish
// 00AB LEFT-POINTING DOUBLE ANGLE QUOTATION MARK: left guillemet
// 00AC NOT SIGN: angled dash
// 00AD SOFT HYPHEN: discretionary hyphen
"\u00b5"-"\u00b6", // 00B5 MICRO SIGN: greek small letter mu
// 00B6 PILCROW SIGN: paragraph sign
"\u00ba"-"\u00bb", // 00BA MASCULINE ORDINAL INDICATOR: spanish
// 00BB RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK : right guillemet
"\u00c0"-"\u00d6", //LATIN CAPITAL LETTER A WITH GRAVE - LATIN CAPITAL LETTER O WITH DIAERESIS
"\u00d8"-"\u00f6", //LATIN CAPITAL LETTER O WITH STROKE - LATIN SMALL LETTER O WITH DIAERESIS
"\u00f8"-"\u00ff", //LATIN SMALL LETTER O WITH STROKE - LATIN SMALL LETTER Y WITH DIAERESIS
"\u0100"-"\u1fff", //LATIN CAPITAL LETTER A WITH MACRON - GREEK DASIA:reversed comma
"\u3040"-"\u318f", //Hiragana - Hangul
"\u3300"-"\u337f", //Squared Katakana
"\u3400"-"\u3d2d", //CJK Unified Ideographs Extension A
"\u4e00"-"\u9fff", //CJK Unified Ideographs
"\uf900"-"\ufaff", //CJK Compatibility Ideographs
"\ufb00"-"\ufb06", //LATIN SMALL LIGATURE FF -LATIN SMALL LIGATURE ST
"\ufb13"-"\ufb17", //ARMENIAN SMALL LIGATURE MEN NOW - ARMENIAN SMALL LIGATURE MEN XEH
"\ufb1f"-"\ufb28", //HEBREW LIGATURE YIDDISH YOD YOD PATAH -HEBREW LETTER WIDE TAV
"\ufb2a"-"\ufb36", //HEBREW LETTER SHIN WITH SHIN DOT - HEBREW LETTER ZAYIN WITH DAGESH
"\ufb38"-"\ufb3e", //HEBREW LETTER TET WITH DAGESH - HEBREW LETTER MEM WITH DAGESH
"\ufb40"-"\ufb41", //HEBREW LETTER NUN WITH DAGESH - HEBREW LETTER SAMEKH WITH DAGESH
"\ufb43"-"\ufb44", //HEBREW LETTER FINAL PE WITH DAGESH - HEBREW LETTER PE WITH DAGESH
"\ufb46"-"\ufb4f", //HEBREW LETTER TSADI WITH DAGESH - HEBREW LIGATURE ALEF LAMED
"\ufb50"-"\ufdd7", //Arabic Presentation Forms(A) - ARABIC LIGATURE BISMILLAH AR-RAHMAN AR-RAHEEM
"\ufdf0"-"\ufdfd", //ARABIC LIGATURE SALLA USED AS KORANIC STOP SIGN ISOLATED FORM -ARABIC LIGATURE BISMILLAH AR-RAHMAN AR-RAHEEM
"\ufe70"-"\ufefc", //Arabic Presentation Forms(B) - ARABIC LIGATURE LAM WITH ALEF FINAL FORM
"\uff1f"-"\uff3a", //FULLWIDTH QUESTION MARK - FULLWIDTH LATIN CAPITAL LETTER Z
"\uff3f"-"\uff5e", //FULLWIDTH LOW LINE - FULLWIDTH TILDE
"\uff61"-"\uffbe", //Halfwidth CJK punctuation:HALFWIDTH IDEOGRAPHIC FULL STOP - HALFWIDTH HANGUL LETTER HIEUH
"\uffc2"-"\uffc7", //HALFWIDTH HANGUL LETTER A - HALFWIDTH HANGUL LETTER E
"\uffca"-"\uffcf", //HALFWIDTH HANGUL LETTER YEO - HALFWIDTH HANGUL LETTER OE
"\uffd2"-"\uffd7", //HALFWIDTH HANGUL LETTER YO - HALFWIDTH HANGUL LETTER YU
"\uffda"-"\uffdc" //HALFWIDTH HANGUL LETTER EU - HALFWIDTH HANGUL LETTER I
]
>
}
Object parse():
{
Object o = null;
}
{
( o=_object() | o=_array() )
{
return o;
}
}
protected Map _object():
{
Map m = new LinkedHashMap();
}
{
( members(m) )?
{
return m;
}
}
protected void members(Map m):
{
}
{
pair(m) [ members(m) ]
}
protected void pair(Map m):
{
Token t = null;
Object o;
String fieldName = null;
}
{
fieldName=fieldName() o=value()
{
m.put(fieldName, o);
}
}
protected String fieldName():
{
String fieldName = null;
}
{
(
{
fieldName = stripOffQuotes(token.image);
}
|
{
fieldName = stripOffQuotes(token.image);
}
|
//some JSON systems now accept 'naked' JSON Objects
{
fieldName = token.image;
}
)
{
return fieldName;
}
}
protected List _array():
{
List a=new ArrayList();
}
{
( elements(a) )?
{
Collections.reverse(a);
return a;
}
}
protected void elements(List a):
{
Object o = null;
}
{
o=value() [ elements(a) ]
{
a.add(o);
}
}
protected Object value():
{
Token t = null;
Object o = null;
}
{
( o=_object()
| o=_array()
| t= {o = t.image;} //'naked' values, too
| t= {o = stripOffQuotes(t.image);}
| t= {o = stripOffQuotes(t.image);}
| t=
{
try {
o = Integer.valueOf(t.image);
}
catch (NumberFormatException nfe1) {
try {
o = new BigInteger(t.image);
}
catch (NumberFormatException nfe2) {
try {
o = new BigDecimal(t.image);
}
catch (NumberFormatException nfe3) {
o = Double.NaN;
}
}
}
}
| {o = Boolean.TRUE;}
| {o = Boolean.FALSE;}
| )
{
return o;
}
}