/*
* Portions Copyright 2000-2009 Sun Microsystems, Inc. All Rights
* Reserved. Use is subject to license terms.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package com.sun.perseus.parser;
/**
* Parser for SVG Clock values, as originally defined in the SMIL spec:
* <pre>
* Clock-val ::= Full-clock-val | Partial-clock-val
* | Timecount-val
* Full-clock-val ::= Hours ":" Minutes ":" Seconds ("." Fraction)?
* Partial-clock-val ::= Minutes ":" Seconds ("." Fraction)?
* Timecount-val ::= Timecount ("." Fraction)? (Metric)?
* Metric ::= "h" | "min" | "s" | "ms"
* Hours ::= DIGIT+; any positive number
* Minutes ::= 2DIGIT; range from 00 to 59
* Seconds ::= 2DIGIT; range from 00 to 59
* Fraction ::= DIGIT+
* Timecount ::= DIGIT+
* 2DIGIT ::= DIGIT DIGIT
* DIGIT ::= [0-9]
* </pre>
*
*/
public class ClockParser extends AbstractParser {
/** Number of milliseconds in a second */
public static final int MILLIS_PER_SECOND = 1000;
/** Number of seconds in a minute */
public static final int SECONDS_PER_MINUTE = 60;
/** Number of milliseconds in a minute */
public static final int MILLIS_PER_MINUTE =
SECONDS_PER_MINUTE * MILLIS_PER_SECOND;
/** Number of minutes in an hour */
public static final int MINUTES_PER_HOUR = 60;
/** Number of milliseconds in an hour */
public static final int MILLIS_PER_HOUR =
MINUTES_PER_HOUR * MILLIS_PER_MINUTE;
/**
* Total number of milliseconds represented by this clock value.
*/
private long millis;
/**
* Parses a clock value. This method throws an
* <code>IllegalArgumentException</code> if the input argument's
* syntax does not conform to that of a clock value, as defined
* by the SMIL specification.
*
* @param clockString the value to convert to a long offset value.
* @return long offset value corresponding to the input argument.
*/
public long parseClock(final String clockString) {
setString(clockString);
current = read();
return parseClock(true);
}
/**
* Parses a clock value, beginning at the current character.
*
* @param eos if true, then there should be no more
* characters at the end of the string (excess characters will produce
* an <code>IllegalArgumentException</code>); if false, the parser will
* treat whitespace and ';' characters as if it marked the end of string.
* @return a long offset value.
*/
protected long parseClock(final boolean eos) {
millis = 0L;
int[] wholeParts = new int[3];
float fractionPart = 0.0f;
int numWholeParts = 0;
int tmp = 0;
boolean isTimeCountVal = true;
boolean isFirstDigitInferiorToSix = false;
boolean hasFractionPart = false;
// first digit (could be part of full, partial, or count)
m1: switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4': case '5':
isFirstDigitInferiorToSix = true;
break m1;
case '6': case '7': case '8': case '9':
break m1;
}
tmp = tmp * 10 + (current - '0');
current = read();
m2: switch (current) {
default:
throw new IllegalArgumentException();
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
wholeParts[numWholeParts++] = tmp;
break m2;
case ':':
if (isFirstDigitInferiorToSix) {
isTimeCountVal = false;
wholeParts[numWholeParts++] = tmp;
tmp = 0;
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4': case '5':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case ':':
wholeParts[numWholeParts++] = tmp;
tmp = 0;
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2':
case '3': case '4': case '5':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
case '8': case '9':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '.':
break m2;
case 0x20: case 0x09:
case 0x0D: case 0x0A:
case ';':
if (eos) {
throw
new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
wholeParts[numWholeParts++] = tmp;
break m2;
}
}
}
}
}
}
}
break m2;
case '.': case 'h': case 'm': case 's':
break m2;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
if (isFirstDigitInferiorToSix) {
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
wholeParts[numWholeParts++] = tmp;
break m2;
case '.': case 'h': case 'm': case 's':
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
break m2;
case ':':
isTimeCountVal = false;
wholeParts[numWholeParts++] = tmp;
tmp = 0;
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4': case '5':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '.':
break m2;
case 0x20: case 0x09: case 0x0D: case 0x0A:
case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
wholeParts[numWholeParts++] = tmp;
break m2;
case ':':
wholeParts[numWholeParts++] = tmp;
tmp = 0;
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2':
case '3': case '4': case '5':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
case '8': case '9':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw
new IllegalArgumentException();
case '.':
break m2;
case 0x20: case 0x09:
case 0x0D: case 0x0A:
case ';':
if (eos) {
throw
new
IllegalArgumentException();
}
// FALLTHROUGH
case -1:
wholeParts[numWholeParts++] = tmp;
break m2;
}
}
}
}
}
}
}
}
}
m3: switch (current) {
default:
throw new IllegalArgumentException();
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
break m3;
case ':': case '.': case 'h': case 'm': case 's':
break m3;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
// must be in the hours field; loop until we reach the colon
for (;;) {
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
wholeParts[numWholeParts++] = tmp;
break m3;
case ':': case '.': case 'h': case 'm': case 's':
break m3;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
}
}
}
m4: switch (current) {
default:
throw new IllegalArgumentException();
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
break m4;
case '.': case 'h': case 'm': case 's':
break m4;
case ':':
isTimeCountVal = false;
wholeParts[numWholeParts++] = tmp;
tmp = 0;
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4': case '5':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case ':':
wholeParts[numWholeParts++] = tmp;
tmp = 0;
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2':case '3':
case '4': case '5':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
tmp = tmp * 10 + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case '.':
break m4;
case 0x20: case 0x09: case 0x0D: case 0x0A:
case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
wholeParts[numWholeParts++] = tmp;
break m4;
}
}
}
}
}
}
}
m5: switch (current) {
default:
throw new IllegalArgumentException();
case '.':
wholeParts[numWholeParts++] = tmp;
hasFractionPart = true;
String frac = "0.";
current = read();
if (isTimeCountVal) {
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
for (;;) {
frac = frac + (current - '0');
current = read();
switch (current) {
default:
break m5;
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case 'h': case 'm': case 's': case -1:
fractionPart = Float.parseFloat(frac);
break m5;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
}
}
}
} else {
switch (current) {
default:
throw new IllegalArgumentException();
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
for (;;) {
frac = frac + (current - '0');
current = read();
switch (current) {
default:
throw new IllegalArgumentException();
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
fractionPart = Float.parseFloat(frac);
break m5;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
}
}
}
}
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case 'h': case 'm': case 's': case -1:
break m5;
}
switch (current) {
default:
throw new IllegalArgumentException();
case 'h':
numWholeParts = 0; // so we don't fall into the seconds case below
addHours(tmp);
addMillis((int) (fractionPart * MILLIS_PER_HOUR));
current = read();
break;
case 'm':
numWholeParts = 0; // so we don't fall into the seconds case below
current = read();
switch (current) {
case 'i':
current = read();
switch (current) {
case 'n':
addMinutes(tmp);
addMillis((int) (fractionPart * MILLIS_PER_MINUTE));
current = read();
break;
default:
throw new IllegalArgumentException();
}
break;
case 's':
addMillis(tmp);
current = read();
break;
default:
throw new IllegalArgumentException();
}
break;
case 's':
// seconds case is handled in the time count case below
if (!hasFractionPart) {
wholeParts[numWholeParts++] = tmp;
}
current = read();
break;
case 0x20: case 0x09: case 0x0D: case 0x0A: case ';':
if (eos) {
throw new IllegalArgumentException();
}
// FALLTHROUGH
case -1:
break;
}
if (eos) {
skipSpaces();
if (current != -1) {
throw new IllegalArgumentException();
}
}
switch (numWholeParts) {
case 0: // time count was already handled above, just break
break;
case 1: // time count (seconds)
addSeconds(wholeParts[0]);
addMillis((int) (fractionPart * MILLIS_PER_SECOND));
break;
case 2: // partial clock value
addMinutes(wholeParts[0]);
addSeconds(wholeParts[1]);
addMillis((int) (fractionPart * MILLIS_PER_SECOND));
break;
case 3: // full clock value
addHours(wholeParts[0]);
addMinutes(wholeParts[1]);
addSeconds(wholeParts[2]);
addMillis((int) (fractionPart * MILLIS_PER_SECOND));
break;
default:
throw new IllegalArgumentException("wrong number of whole parts");
}
return millis;
}
/**
* Adds the given number of hours to the total clock value.
*
* @param hours number of hours to add to the total clock value
*/
private void addHours(final long hours) {
millis += (hours * MILLIS_PER_HOUR);
}
/**
* Adds the given number of minutes to the total clock value.
*
* @param minutes number of minutes to add to the total clock value
*/
private void addMinutes(final long minutes) {
millis += (minutes * MILLIS_PER_MINUTE);
}
/**
* Adds the given number of seconds to the total clock value.
*
* @param seconds number of seconds to add to the total clock value
*/
private void addSeconds(final long seconds) {
millis += (seconds * MILLIS_PER_SECOND);
}
/**
* Adds the given number of milliseconds to the total clock value.
*
* @param ms number of milliseconds to add to the total clock value
*/
private void addMillis(final long ms) {
millis += ms;
}
}