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src/share/tools/MakeDeps/MacroDefinitions.java@c18cbe5936b8 (annotated)

src/share/tools/MakeDeps/MacroDefinitions.java

Thu, 27 May 2010 19:08:38 -0700

author

trims

date

Thu, 27 May 2010 19:08:38 -0700

changeset 1907

c18cbe5936b8

parent 435

a61af66fc99e

permissions

-rw-r--r--

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

duke@435	1	/*
trims@1907	2	* Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	import java.io.*;
duke@435	26	import java.util.*;
duke@435	27
duke@435	28	public class MacroDefinitions {
duke@435	29	private Vector macros;
duke@435	30
duke@435	31	public MacroDefinitions() {
duke@435	32	macros = new Vector();
duke@435	33	}
duke@435	34
duke@435	35	private String lookup(String name) throws NoSuchElementException {
duke@435	36	for (Iterator iter = macros.iterator(); iter.hasNext(); ) {
duke@435	37	Macro macro = (Macro) iter.next();
duke@435	38	if (macro.name.equals(name)) {
duke@435	39	return macro.contents;
duke@435	40	}
duke@435	41	}
duke@435	42	throw new NoSuchElementException(name);
duke@435	43	}
duke@435	44
duke@435	45	public void addMacro(String name, String contents) {
duke@435	46	Macro macro = new Macro();
duke@435	47	macro.name = name;
duke@435	48	macro.contents = contents;
duke@435	49	macros.add(macro);
duke@435	50	}
duke@435	51
duke@435	52	private boolean lineIsEmpty(String s) {
duke@435	53	for (int i = 0; i < s.length(); i++) {
duke@435	54	if (!Character.isWhitespace(s.charAt(i))) {
duke@435	55	return false;
duke@435	56	}
duke@435	57	}
duke@435	58	return true;
duke@435	59	}
duke@435	60
duke@435	61	public void readFrom(String fileName, boolean missingOk)
duke@435	62	throws FileNotFoundException, FileFormatException, IOException {
duke@435	63	BufferedReader reader = null;
duke@435	64	try {
duke@435	65	reader = new BufferedReader(new FileReader(fileName));
duke@435	66	} catch (FileNotFoundException e) {
duke@435	67	if (missingOk) {
duke@435	68	return;
duke@435	69	} else {
duke@435	70	throw(e);
duke@435	71	}
duke@435	72	}
duke@435	73	String line;
duke@435	74	do {
duke@435	75	line = reader.readLine();
duke@435	76	if (line != null) {
duke@435	77	// This had to be rewritten (compare to Database.java)
duke@435	78	// because the Solaris platform file has been
duke@435	79	// repurposed and now contains "macros" with spaces in
duke@435	80	// them.
duke@435	81
duke@435	82	if ((!line.startsWith("//")) &&
duke@435	83	(!lineIsEmpty(line))) {
duke@435	84	int nameBegin = -1;
duke@435	85	int nameEnd = -1;
duke@435	86	boolean gotEquals = false;
duke@435	87	int contentsBegin = -1;
duke@435	88	int contentsEnd = -1;
duke@435	89
duke@435	90	int i = 0;
duke@435	91	// Scan forward for beginning of name
duke@435	92	while (i < line.length()) {
duke@435	93	if (!Character.isWhitespace(line.charAt(i))) {
duke@435	94	break;
duke@435	95	}
duke@435	96	i++;
duke@435	97	}
duke@435	98	nameBegin = i;
duke@435	99
duke@435	100	// Scan forward for end of name
duke@435	101	while (i < line.length()) {
duke@435	102	if (Character.isWhitespace(line.charAt(i))) {
duke@435	103	break;
duke@435	104	}
duke@435	105	i++;
duke@435	106	}
duke@435	107	nameEnd = i;
duke@435	108
duke@435	109	// Scan forward for equals sign
duke@435	110	while (i < line.length()) {
duke@435	111	if (line.charAt(i) == '=') {
duke@435	112	gotEquals = true;
duke@435	113	break;
duke@435	114	}
duke@435	115	i++;
duke@435	116	}
duke@435	117
duke@435	118	// Scan forward for start of contents
duke@435	119	i++;
duke@435	120	while (i < line.length()) {
duke@435	121	if (!Character.isWhitespace(line.charAt(i))) {
duke@435	122	break;
duke@435	123	}
duke@435	124	i++;
duke@435	125	}
duke@435	126	contentsBegin = i;
duke@435	127
duke@435	128	// Scan *backward* for end of contents
duke@435	129	i = line.length() - 1;
duke@435	130	while (i >= 0) {
duke@435	131	if (!Character.isWhitespace(line.charAt(i))) {
duke@435	132	break;
duke@435	133	}
duke@435	134	}
duke@435	135	contentsEnd = i+1;
duke@435	136
duke@435	137	// Now do consistency check
duke@435	138	if (!((nameBegin < nameEnd) &&
duke@435	139	(nameEnd < contentsBegin) &&
duke@435	140	(contentsBegin < contentsEnd) &&
duke@435	141	(gotEquals == true))) {
duke@435	142	throw new FileFormatException(
duke@435	143	"Expected \"macroname = value\", " +
duke@435	144	"but found: " + line
duke@435	145	);
duke@435	146	}
duke@435	147
duke@435	148	String name = line.substring(nameBegin, nameEnd);
duke@435	149	String contents = line.substring(contentsBegin,
duke@435	150	contentsEnd);
duke@435	151	addMacro(name, contents);
duke@435	152	}
duke@435	153	}
duke@435	154	} while (line != null);
duke@435	155	reader.close();
duke@435	156	}
duke@435	157
duke@435	158	/** Throws IllegalArgumentException if passed token is illegally
duke@435	159	formatted */
duke@435	160	public String expand(String token)
duke@435	161	throws IllegalArgumentException {
duke@435	162	// the token may contain one or more <macroName>'s
duke@435	163
duke@435	164	String out = "";
duke@435	165
duke@435	166	// emacs lingo
duke@435	167	int mark = 0;
duke@435	168	int point = 0;
duke@435	169
duke@435	170	int len = token.length();
duke@435	171
duke@435	172	if (len == 0)
duke@435	173	return out;
duke@435	174
duke@435	175	do {
duke@435	176	// Scan "point" forward until hitting either the end of
duke@435	177	// the string or the beginning of a macro
duke@435	178	if (token.charAt(point) == '<') {
duke@435	179	// Append (point - mark) to out
duke@435	180	if ((point - mark) != 0) {
duke@435	181	out += token.substring(mark, point);
duke@435	182	}
duke@435	183	mark = point + 1;
duke@435	184	// Scan forward from point for right bracket
duke@435	185	point++;
duke@435	186	while ((point < len) &&
duke@435	187	(token.charAt(point) != '>')) {
duke@435	188	point++;
duke@435	189	}
duke@435	190	if (point == len) {
duke@435	191	throw new IllegalArgumentException(
duke@435	192	"Could not find right angle-bracket in token " + token
duke@435	193	);
duke@435	194	}
duke@435	195	String name = token.substring(mark, point);
duke@435	196	if (name == null) {
duke@435	197	throw new IllegalArgumentException(
duke@435	198	"Empty macro in token " + token
duke@435	199	);
duke@435	200	}
duke@435	201	try {
duke@435	202	String contents = lookup(name);
duke@435	203	out += contents;
duke@435	204	point++;
duke@435	205	mark = point;
duke@435	206	} catch (NoSuchElementException e) {
duke@435	207	throw new IllegalArgumentException(
duke@435	208	"Unknown macro " + name + " in token " + token
duke@435	209	);
duke@435	210	}
duke@435	211	} else {
duke@435	212	point++;
duke@435	213	}
duke@435	214	} while (point != len);
duke@435	215
duke@435	216	if (mark != point) {
duke@435	217	out += token.substring(mark, point);
duke@435	218	}
duke@435	219
duke@435	220	return out;
duke@435	221	}
duke@435	222
duke@435	223	public MacroDefinitions copy() {
duke@435	224	MacroDefinitions ret = new MacroDefinitions();
duke@435	225	for (Iterator iter = macros.iterator();
duke@435	226	iter.hasNext(); ) {
duke@435	227	Macro orig = (Macro) iter.next();
duke@435	228	Macro macro = new Macro();
duke@435	229	macro.name = orig.name;
duke@435	230	macro.contents = orig.contents;
duke@435	231	ret.macros.add(macro);
duke@435	232	}
duke@435	233	return ret;
duke@435	234	}
duke@435	235
duke@435	236	public void setAllMacroBodiesTo(String s) {
duke@435	237	for (Iterator iter = macros.iterator();
duke@435	238	iter.hasNext(); ) {
duke@435	239	Macro macro = (Macro) iter.next();
duke@435	240	macro.contents = s;
duke@435	241	}
duke@435	242	}
duke@435	243
duke@435	244	/** This returns an Iterator of Macros. You should not mutate the
duke@435	245	returned Macro objects or use the Iterator to remove
duke@435	246	macros. */
duke@435	247	public Iterator getMacros() {
duke@435	248	return macros.iterator();
duke@435	249	}
duke@435	250
duke@435	251	private void error(String text) throws FileFormatException {
duke@435	252	throw new FileFormatException(
duke@435	253	"Expected \"macroname = value\", but found: " + text
duke@435	254	);
duke@435	255	}
duke@435	256	}