tec.units.ri.internal.format.UnitFormatParser Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of unit-ri Show documentation
Show all versions of unit-ri Show documentation
Unit Standard (JSR 363) Reference Implementation.
/**
* Unit-API - Units of Measurement API for Java
* Copyright (c) 2005-2015, Jean-Marie Dautelle, Werner Keil, V2COM.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of JSR-363 nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package tec.units.ri.internal.format;
// import static java.lang.StrictMath.E; // not in CLDC 8
import static java.lang.Math.E;
import javax.measure.Unit;
import tec.units.ri.AbstractUnit;
import tec.units.ri.format.SymbolMap;
import tec.units.ri.function.LogConverter;
import tec.units.ri.unit.MetricPrefix;
import tec.units.ri.unit.Units;
/** */
public final class UnitFormatParser implements UnitTokenConstants {
private static class Exponent {
final int pow;
final int root;
public Exponent (int pow, int root) {
this.pow = pow;
this.root = root;
}
}
private SymbolMap symbols;
public UnitFormatParser (SymbolMap symbols, java.io.Reader in) { // TODO visiblity
this(in);
this.symbols = symbols;
}
//
// Parser productions
//
@SuppressWarnings("unused")
public Unit parseUnit() throws TokenException { // TODO visibility
Unit result;
result = compoundExpr();
jj_consume_token(0);
{if (true) return result;}
throw new Error("Missing return statement in function");
}
@SuppressWarnings("unused")
Unit compoundExpr() throws TokenException {
Unit result = Units.ONE;
result = addExpr();
label_1:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case COLON:
;
break;
default:
jj_la1[0] = jj_gen;
break label_1;
}
jj_consume_token(COLON);
}
{if (true) return result;}
throw new Error("Missing return statement in function");
}
@SuppressWarnings("unused")
Unit addExpr() throws TokenException {
Unit result = Units.ONE;
Number n1 = null;
Token sign1 = null;
Number n2 = null;
Token sign2 = null;
if (jj_2_1(2147483647)) {
n1 = numberExpr();
sign1 = sign();
} else {
;
}
result = mulExpr();
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PLUS:
case MINUS:
sign2 = sign();
n2 = numberExpr();
break;
default:
jj_la1[1] = jj_gen;
;
}
if (n1 != null) {
if (sign1.image.equals("-")) {
result = result.multiply(-1);
}
result = result.shift(n1.doubleValue());
}
if (n2 != null) {
double offset = n2.doubleValue();
if (sign2.image.equals("-")) {
offset = -offset;
}
result = result.shift(offset);
}
{if (true) return result;}
throw new Error("Missing return statement in function");
}
Unit mulExpr() throws TokenException {
Unit result = Units.ONE;
Unit temp = Units.ONE;
result = exponentExpr();
label_2:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case ASTERISK:
case MIDDLE_DOT:
case SOLIDUS:
;
break;
default:
jj_la1[2] = jj_gen;
break label_2;
}
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case ASTERISK:
case MIDDLE_DOT:
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case ASTERISK:
jj_consume_token(ASTERISK);
break;
case MIDDLE_DOT:
jj_consume_token(MIDDLE_DOT);
break;
default:
jj_la1[3] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
temp = exponentExpr();
result=result.multiply(temp);
break;
case SOLIDUS:
jj_consume_token(SOLIDUS);
temp = exponentExpr();
result=result.divide(temp);
break;
default:
jj_la1[4] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
}
//{if (true)
return result;//}
// throw new Error("Missing return statement in function");
}
@SuppressWarnings("unused")
Unit exponentExpr() throws TokenException {
Unit result = Units.ONE;
Exponent exponent = null;
Token token = null;
if (jj_2_2(2147483647)) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case INTEGER:
token = jj_consume_token(INTEGER);
break;
case E:
token = jj_consume_token(E);
break;
default:
jj_la1[5] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
jj_consume_token(CARET);
result = atomicExpr();
double base;
if (token.kind == INTEGER) {
base = Integer.parseInt(token.image);
} else {
base = E;
}
{if (true) return result.transform(new LogConverter(base).inverse());}
} else {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case OPEN_PAREN:
case INTEGER:
case FLOATING_POINT:
case UNIT_IDENTIFIER:
result = atomicExpr();
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case CARET:
case SUPERSCRIPT_INTEGER:
exponent = exp();
break;
default:
jj_la1[6] = jj_gen;
;
}
if (exponent != null) {
if (exponent.pow != 1) {
result = result.pow(exponent.pow);
}
if (exponent.root != 1) {
result = result.root(exponent.root);
}
}
{if (true) return result;}
// break;
case LOG:
case NAT_LOG:
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case LOG:
jj_consume_token(LOG);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case INTEGER:
token = jj_consume_token(INTEGER);
break;
default:
jj_la1[7] = jj_gen;
;
}
break;
case NAT_LOG:
token = jj_consume_token(NAT_LOG);
break;
default:
jj_la1[8] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
jj_consume_token(OPEN_PAREN);
result = addExpr();
jj_consume_token(CLOSE_PAREN);
double base = 10;
if (token != null) {
if (token.kind == INTEGER) {
base = Integer.parseInt(token.image);
} else if (token.kind == NAT_LOG) {
base = E;
}
}
{if (true) return result.transform(new LogConverter(base));}
default:
jj_la1[9] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
}
throw new Error("Missing return statement in function");
}
Unit atomicExpr() throws TokenException {
Unit result = Units.ONE;
// Unit temp = Units.ONE;
Number n = null;
Token token = null;
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case INTEGER:
case FLOATING_POINT:
n = numberExpr();
if (n instanceof Integer) {
{if (true) return result.multiply(n.intValue());}
} else {
{if (true) return result.multiply(n.doubleValue());}
}
// break;
case UNIT_IDENTIFIER:
token = jj_consume_token(UNIT_IDENTIFIER);
Unit unit = symbols.getUnit(token.image);
if (unit == null) {
MetricPrefix prefix = symbols.getPrefix(token.image);
if (prefix != null) {
String prefixSymbol = symbols.getSymbol(prefix);
unit = symbols.getUnit(token.image.substring(prefixSymbol.length()));
if (unit != null) {
{if (true) return unit.transform(prefix.getConverter());}
}
}
{if (true) throw new TokenException();}
} else {
{if (true) return unit;}
}
// break;
case OPEN_PAREN:
jj_consume_token(OPEN_PAREN);
result = addExpr();
jj_consume_token(CLOSE_PAREN);
{if (true) return result;}
// break;
default:
jj_la1[10] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
// throw new Error("Missing return statement in function");
}
@SuppressWarnings("unused")
Token sign() throws TokenException {
Token result = null;
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PLUS:
result = jj_consume_token(PLUS);
break;
case MINUS:
result = jj_consume_token(MINUS);
break;
default:
jj_la1[11] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
{if (true) return result;}
throw new Error("Missing return statement in function");
}
Number numberExpr() throws TokenException {
Token token = null;
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case INTEGER:
token = jj_consume_token(INTEGER);
{if (true) return Long.valueOf(token.image);}
// break;
case FLOATING_POINT:
token = jj_consume_token(FLOATING_POINT);
{if (true) return Double.valueOf(token.image);}
// break;
default:
jj_la1[12] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
// throw new Error("Missing return statement in function");
}
Exponent exp() throws TokenException {
Token powSign = null;
Token powToken = null;
Token rootSign = null;
Token rootToken = null;
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case CARET:
jj_consume_token(CARET);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PLUS:
case MINUS:
case INTEGER:
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PLUS:
case MINUS:
powSign = sign();
break;
default:
jj_la1[13] = jj_gen;
;
}
powToken = jj_consume_token(INTEGER);
int pow = Integer.parseInt(powToken.image);
if ((powSign != null) && powSign.image.equals("-")) {
pow = -pow;
}
{if (true) return new Exponent(pow, 1);}
case OPEN_PAREN:
jj_consume_token(OPEN_PAREN);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PLUS:
case MINUS:
powSign = sign();
break;
default:
jj_la1[14] = jj_gen;
;
}
powToken = jj_consume_token(INTEGER);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case SOLIDUS:
jj_consume_token(SOLIDUS);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PLUS:
case MINUS:
rootSign = sign();
break;
default:
jj_la1[15] = jj_gen;
;
}
rootToken = jj_consume_token(INTEGER);
break;
default:
jj_la1[16] = jj_gen;
;
}
jj_consume_token(CLOSE_PAREN);
pow = Integer.parseInt(powToken.image);
if ((powSign != null) && powSign.image.equals("-")) {
pow = -pow;
}
int root = 1;
if (rootToken != null) {
root = Integer.parseInt(rootToken.image);
if ((rootSign != null) && rootSign.image.equals("-")) {
root = -root;
}
}
{if (true) return new Exponent(pow, root);}
default:
jj_la1[17] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
case SUPERSCRIPT_INTEGER:
powToken = jj_consume_token(SUPERSCRIPT_INTEGER);
int pow = 0;
for (int i = 0; i < powToken.image.length(); i += 1) {
pow *= 10;
switch (powToken.image.charAt(i)) {
case '\u00b9': pow += 1; break;
case '\u00b2': pow += 2; break;
case '\u00b3': pow += 3; break;
case '\u2074': pow += 4; break;
case '\u2075': pow += 5; break;
case '\u2076': pow += 6; break;
case '\u2077': pow += 7; break;
case '\u2078': pow += 8; break;
case '\u2079': pow += 9; break;
}
}
{if (true) return new Exponent(pow, 1);}
// break;
default:
jj_la1[18] = jj_gen;
jj_consume_token(-1);
throw new TokenException();
}
// throw new Error("Missing return statement in function");
}
private boolean jj_2_1(int xla) {
jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_1(); }
catch(LookaheadSuccess ls) { return true; }
finally { jj_save(0, xla); }
}
private boolean jj_2_2(int xla) {
jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_2(); }
catch(LookaheadSuccess ls) { return true; }
finally { jj_save(1, xla); }
}
private boolean jj_3R_3() {
Token xsp;
xsp = jj_scanpos;
if (jj_3R_5()) {
jj_scanpos = xsp;
if (jj_3R_6()) return true;
}
return false;
}
private boolean jj_3R_6() {
if (jj_scan_token(FLOATING_POINT)) return true;
return false;
}
private boolean jj_3_2() {
Token xsp;
xsp = jj_scanpos;
if (jj_scan_token(14)) {
jj_scanpos = xsp;
if (jj_scan_token(19)) return true;
}
if (jj_scan_token(CARET)) return true;
return false;
}
private boolean jj_3_1() {
if (jj_3R_3()) return true;
if (jj_3R_4()) return true;
return false;
}
private boolean jj_3R_4() {
Token xsp;
xsp = jj_scanpos;
if (jj_scan_token(5)) {
jj_scanpos = xsp;
if (jj_scan_token(6)) return true;
}
return false;
}
private boolean jj_3R_5() {
if (jj_scan_token(INTEGER)) return true;
return false;
}
/** Generated Token Manager. */
private UnitTokenManager token_source;
private DefaultCharStream jj_input_stream;
/** Current token. */
private Token token;
/** Next token. */
private Token jj_nt;
private int jj_ntk;
private Token jj_scanpos, jj_lastpos;
private int jj_la;
private int jj_gen;
final private int[] jj_la1 = new int[19];
static private int[] jj_la1_0;
static {
jj_la1_init_0();
}
private static void jj_la1_init_0() {
jj_la1_0 = new int[] {0x800,0x60,0x380,0x180,0x380,0x84000,0x8400,0x4000,0x60000,0x175000,0x115000,0x60,0x14000,0x60,0x60,0x60,0x200,0x5060,0x8400,};
}
final private JJCalls[] jj_2_rtns = new JJCalls[2];
private boolean jj_rescan = false;
private int jj_gc = 0;
/** Constructor with InputStream. */
UnitFormatParser(java.io.InputStream stream) {
this(stream, null);
}
/** Constructor with InputStream and supplied encoding */
UnitFormatParser(java.io.InputStream stream, String encoding) {
try { jj_input_stream = new DefaultCharStream(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
token_source = new UnitTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 19; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
}
/** Constructor. */
UnitFormatParser(java.io.Reader stream) {
jj_input_stream = new DefaultCharStream(stream, 1, 1);
token_source = new UnitTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 19; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
}
/** Reinitialise. */
// private void reInit(java.io.Reader stream) {
// jj_input_stream.reInit(stream, 1, 1);
// token_source.reInit(jj_input_stream);
// token = new Token();
// jj_ntk = -1;
// jj_gen = 0;
// for (int i = 0; i < 19; i++) jj_la1[i] = -1;
// for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
// }
/** Constructor with generated Token Manager. */
UnitFormatParser(UnitTokenManager tm) {
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 19; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
}
/** Reinitialise. */
// private void reInit(UnitTokenManager tm) {
// token_source = tm;
// token = new Token();
// jj_ntk = -1;
// jj_gen = 0;
// for (int i = 0; i < 19; i++) jj_la1[i] = -1;
// for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
// }
private Token jj_consume_token(int kind) throws TokenException {
Token oldToken;
if ((oldToken = token).next != null) token = token.next;
else token = token.next = token_source.getNextToken();
jj_ntk = -1;
if (token.kind == kind) {
jj_gen++;
if (++jj_gc > 100) {
jj_gc = 0;
for (int i = 0; i < jj_2_rtns.length; i++) {
JJCalls c = jj_2_rtns[i];
while (c != null) {
if (c.gen < jj_gen) c.first = null;
c = c.next;
}
}
}
return token;
}
token = oldToken;
jj_kind = kind;
throw generateParseException();
}
static private final class LookaheadSuccess extends java.lang.Error {
/**
*
*/
private static final long serialVersionUID = -8192240240676284081L; }
final private LookaheadSuccess jj_ls = new LookaheadSuccess();
private boolean jj_scan_token(int kind) {
if (jj_scanpos == jj_lastpos) {
jj_la--;
if (jj_scanpos.next == null) {
jj_lastpos = jj_scanpos = jj_scanpos.next = token_source.getNextToken();
} else {
jj_lastpos = jj_scanpos = jj_scanpos.next;
}
} else {
jj_scanpos = jj_scanpos.next;
}
if (jj_rescan) {
int i = 0; Token tok = token;
while (tok != null && tok != jj_scanpos) { i++; tok = tok.next; }
if (tok != null) jj_add_error_token(kind, i);
}
if (jj_scanpos.kind != kind) return true;
if (jj_la == 0 && jj_scanpos == jj_lastpos) throw jj_ls;
return false;
}
/** Get the next Token. */
final Token getNextToken() {
if (token.next != null) token = token.next;
else token = token.next = token_source.getNextToken();
jj_ntk = -1;
jj_gen++;
return token;
}
/** Get the specific Token. */
final Token getToken(int index) {
Token t = token;
for (int i = 0; i < index; i++) {
if (t.next != null) t = t.next;
else t = t.next = token_source.getNextToken();
}
return t;
}
private int jj_ntk() {
if ((jj_nt=token.next) == null)
return (jj_ntk = (token.next=token_source.getNextToken()).kind);
else
return (jj_ntk = jj_nt.kind);
}
private java.util.List jj_expentries = new java.util.ArrayList();
private int[] jj_expentry;
private int jj_kind = -1;
private int[] jj_lasttokens = new int[100];
private int jj_endpos;
private void jj_add_error_token(int kind, int pos) {
if (pos >= 100) return;
if (pos == jj_endpos + 1) {
jj_lasttokens[jj_endpos++] = kind;
} else if (jj_endpos != 0) {
jj_expentry = new int[jj_endpos];
for (int i = 0; i < jj_endpos; i++) {
jj_expentry[i] = jj_lasttokens[i];
}
jj_entries_loop: for (java.util.Iterator it = jj_expentries.iterator(); it.hasNext();) {
int[] oldentry = (int[])(it.next());
if (oldentry.length == jj_expentry.length) {
for (int i = 0; i < jj_expentry.length; i++) {
if (oldentry[i] != jj_expentry[i]) {
continue jj_entries_loop;
}
}
jj_expentries.add(jj_expentry);
break jj_entries_loop;
}
}
if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
}
}
/** Generate TokenException. */
TokenException generateParseException() {
jj_expentries.clear();
boolean[] la1tokens = new boolean[21];
if (jj_kind >= 0) {
la1tokens[jj_kind] = true;
jj_kind = -1;
}
for (int i = 0; i < 19; i++) {
if (jj_la1[i] == jj_gen) {
for (int j = 0; j < 32; j++) {
if ((jj_la1_0[i] & (1< jj_gen) {
jj_la = p.arg; jj_lastpos = jj_scanpos = p.first;
switch (i) {
case 0: jj_3_1(); break;
case 1: jj_3_2(); break;
}
}
p = p.next;
} while (p != null);
} catch(LookaheadSuccess ls) { }
}
jj_rescan = false;
}
private void jj_save(int index, int xla) {
JJCalls p = jj_2_rtns[index];
while (p.gen > jj_gen) {
if (p.next == null) { p = p.next = new JJCalls(); break; }
p = p.next;
}
p.gen = jj_gen + xla - jj_la; p.first = token; p.arg = xla;
}
static final class JJCalls {
int gen;
Token first;
int arg;
JJCalls next;
}
}