/plugins/JavaSideKick/tags/javasidekick-2-4-0/src/sidekick/property/parser/property/PropertyParser.java
# · Java · 484 lines · 395 code · 43 blank · 46 comment · 116 complexity · 7b1a129f1ea618701f108d64a56e9bfc MD5 · raw file
- /* Generated By:JavaCC: Do not edit this line. PropertyParser.java */
- package sidekick.property.parser.property;
- import java.util.*;
- import sidekick.util.Location;
- public class PropertyParser implements PropertyParserConstants {
- // accumulates parse exceptions
- private List<ParseException> exceptions = new ArrayList<ParseException>();
- // for testing...
- public static void main(String args[]) throws ParseException {
- PropertyParser parser = new PropertyParser(System.in);
- parser.Properties();
- }
- /**
- * Utility to trim horizontal whitespace from the front of a string.
- * @param the string to trim
- * @return the trimmed string
- */
- public String trimFront(String s) {
- if (s == null || s.length() == 0) {
- return s;
- }
- int index = 0;
- for (int i = 0; i < s.length(); i++) {
- if (s.charAt(i) == ' ' || s.charAt(i) == '\t')
- ++index;
- else
- break;
- }
- return s.substring(index);
- }
- /**
- * Setting the tab size makes the token locations more accurate.
- * @param size the size of the tabs in the current jEdit buffer
- */
- public void setTabSize(int size) {
- jj_input_stream.setTabSize(size);
- }
- /**
- * @return the current tab size that the parser is using
- */
- public int getTabSize() {
- return jj_input_stream.getTabSize(0);
- }
- /**
- * Creates a start location from the given token.
- * @param t a token
- * @return the start location of the token.
- */
- public Location createStartLocation(Token t) {
- if (t == null)
- return new Location(0, 0);
- return new Location(t.beginLine, t.beginColumn);
- }
- /**
- * Creates an end location from the given token.
- * @param t a token
- * @return the end location of the token.
- */
- public Location createEndLocation(Token t) {
- if (t == null)
- return new Location(0, 0);
- return new Location(t.endLine, t.endColumn);
- }
- /**
- * Add an exception to the list of exceptions. Rather than failing on
- * any exception, this parser will continue parsing and will accumulate
- * any/all exceptions.
- * @param pe a ParseException to accumulate
- */
- public void addException(ParseException pe) {
- if (pe != null)
- exceptions.add(pe);
- }
- /**
- * @return the list of accumulated ParseExceptions
- */
- public List<ParseException> getExceptions() {
- return exceptions;
- }
- final public List<Property> Properties() throws ParseException {
- List<Property> list = new ArrayList<Property>();
- Property p = null;
- label_1:
- while (true) {
- switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
- case COMMENT:
- case BARE_KEY:
- case KEY:
- ;
- break;
- default:
- jj_la1[0] = jj_gen;
- break label_1;
- }
- if (jj_2_1(2)) {
- Comment();
- } else {
- switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
- case BARE_KEY:
- case KEY:
- p = Property();
- if (p != null)
- list.add(p);
- break;
- default:
- jj_la1[1] = jj_gen;
- jj_consume_token(-1);
- throw new ParseException();
- }
- }
- }
- jj_consume_token(0);
- /* always sort the list by property name -- could make the caller do
- this and just return the properties in the original order */
- Collections.sort(list);
- {if (true) return list;}
- throw new Error("Missing return statement in function");
- }
- /**
- * @return a single property from the property file.
- */
- final public Property Property() throws ParseException {
- Token key = null;
- Token value = null;
- try {
- if (jj_2_2(2)) {
- key = jj_consume_token(KEY);
- token_source.SwitchTo(ParseEquals);
- jj_consume_token(EQUALS);
- token_source.SwitchTo(ParseValue);
- value = jj_consume_token(VALUE);
- } else {
- switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
- case BARE_KEY:
- key = jj_consume_token(BARE_KEY);
- token_source.SwitchTo(DEFAULT);
- break;
- default:
- jj_la1[2] = jj_gen;
- jj_consume_token(-1);
- throw new ParseException();
- }
- }
- Property prop = new Property();
- prop.setStartLocation(createStartLocation(key));
- prop.setEndLocation(createEndLocation(value == null ? key : value));
- /* key -- need to trim as the regex production can capture whitespace,
- and by definition, the key cannot contain any whitespace characters */
- String out = key.image.trim();
- /* key can have escaped 'equals' characters, unescape them */
- out = out.replaceAll("\\\\=", "=");
- out = out.replaceAll("\\\\:", ":");
- out = out.replaceAll("\\\\ ", " ");
- out = out.replaceAll("\\\\\\t", "\t");
- prop.setKey(out);
- /* value -- need to combine multi-line values into a single line. Leading
- whitespace on continuation lines is discarded, as is leading whitespace
- at the start of the value. */
- out = value == null ? "" : value.image.replaceAll("\\\\(\\s)+", "");
- out = trimFront(out);
- prop.setValue(out);
- {if (true) return prop;}
- } catch (ParseException e) {
- addException(generateParseException());
- }
- throw new Error("Missing return statement in function");
- }
- /* For completeness only. This parser does nothing special with comments. */
- final public void Comment() throws ParseException {
- jj_consume_token(COMMENT);
- }
- final 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); }
- }
- final 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); }
- }
- final private boolean jj_3_2() {
- if (jj_scan_token(KEY)) return true;
- if (jj_scan_token(EQUALS)) return true;
- return false;
- }
- final private boolean jj_3_1() {
- if (jj_scan_token(4)) return true;
- return false;
- }
- public PropertyParserTokenManager token_source;
- JavaCharStream jj_input_stream;
- public Token token, jj_nt;
- private int jj_ntk;
- private Token jj_scanpos, jj_lastpos;
- private int jj_la;
- public boolean lookingAhead = false;
- private boolean jj_semLA;
- private int jj_gen;
- final private int[] jj_la1 = new int[3];
- static private int[] jj_la1_0;
- static {
- jj_la1_0();
- }
- private static void jj_la1_0() {
- jj_la1_0 = new int[] {0x70,0x60,0x20,};
- }
- final private JJCalls[] jj_2_rtns = new JJCalls[2];
- private boolean jj_rescan = false;
- private int jj_gc = 0;
- public PropertyParser(java.io.InputStream stream) {
- this(stream, null);
- }
- public PropertyParser(java.io.InputStream stream, String encoding) {
- try { jj_input_stream = new JavaCharStream(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
- token_source = new PropertyParserTokenManager(jj_input_stream);
- token = new Token();
- jj_ntk = -1;
- jj_gen = 0;
- for (int i = 0; i < 3; i++) jj_la1[i] = -1;
- for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
- }
- public void ReInit(java.io.InputStream stream) {
- ReInit(stream, null);
- }
- public void ReInit(java.io.InputStream stream, String encoding) {
- try { jj_input_stream.ReInit(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
- token_source.ReInit(jj_input_stream);
- token = new Token();
- jj_ntk = -1;
- jj_gen = 0;
- for (int i = 0; i < 3; i++) jj_la1[i] = -1;
- for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
- }
- public PropertyParser(java.io.Reader stream) {
- jj_input_stream = new JavaCharStream(stream, 1, 1);
- token_source = new PropertyParserTokenManager(jj_input_stream);
- token = new Token();
- jj_ntk = -1;
- jj_gen = 0;
- for (int i = 0; i < 3; i++) jj_la1[i] = -1;
- for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
- }
- public 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 < 3; i++) jj_la1[i] = -1;
- for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
- }
- public PropertyParser(PropertyParserTokenManager tm) {
- token_source = tm;
- token = new Token();
- jj_ntk = -1;
- jj_gen = 0;
- for (int i = 0; i < 3; i++) jj_la1[i] = -1;
- for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
- }
- public void ReInit(PropertyParserTokenManager tm) {
- token_source = tm;
- token = new Token();
- jj_ntk = -1;
- jj_gen = 0;
- for (int i = 0; i < 3; i++) jj_la1[i] = -1;
- for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
- }
- final private Token jj_consume_token(int kind) throws ParseException {
- 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 { }
- final private LookaheadSuccess jj_ls = new LookaheadSuccess();
- final 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;
- }
- final public Token getNextToken() {
- if (token.next != null) token = token.next;
- else token = token.next = token_source.getNextToken();
- jj_ntk = -1;
- jj_gen++;
- return token;
- }
- final public Token getToken(int index) {
- Token t = lookingAhead ? jj_scanpos : token;
- for (int i = 0; i < index; i++) {
- if (t.next != null) t = t.next;
- else t = t.next = token_source.getNextToken();
- }
- return t;
- }
- final 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.Vector jj_expentries = new java.util.Vector();
- 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];
- }
- boolean exists = false;
- for (java.util.Enumeration e = jj_expentries.elements(); e.hasMoreElements();) {
- int[] oldentry = (int[])(e.nextElement());
- if (oldentry.length == jj_expentry.length) {
- exists = true;
- for (int i = 0; i < jj_expentry.length; i++) {
- if (oldentry[i] != jj_expentry[i]) {
- exists = false;
- break;
- }
- }
- if (exists) break;
- }
- }
- if (!exists) jj_expentries.addElement(jj_expentry);
- if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
- }
- }
- public ParseException generateParseException() {
- jj_expentries.removeAllElements();
- boolean[] la1tokens = new boolean[10];
- for (int i = 0; i < 10; i++) {
- la1tokens[i] = false;
- }
- if (jj_kind >= 0) {
- la1tokens[jj_kind] = true;
- jj_kind = -1;
- }
- for (int i = 0; i < 3; i++) {
- if (jj_la1[i] == jj_gen) {
- for (int j = 0; j < 32; j++) {
- if ((jj_la1_0[i] & (1<<j)) != 0) {
- la1tokens[j] = true;
- }
- }
- }
- }
- for (int i = 0; i < 10; i++) {
- if (la1tokens[i]) {
- jj_expentry = new int[1];
- jj_expentry[0] = i;
- jj_expentries.addElement(jj_expentry);
- }
- }
- jj_endpos = 0;
- jj_rescan_token();
- jj_add_error_token(0, 0);
- int[][] exptokseq = new int[jj_expentries.size()][];
- for (int i = 0; i < jj_expentries.size(); i++) {
- exptokseq[i] = (int[])jj_expentries.elementAt(i);
- }
- return new ParseException(token, exptokseq, tokenImage);
- }
- final public void enable_tracing() {
- }
- final public void disable_tracing() {
- }
- final private void jj_rescan_token() {
- jj_rescan = true;
- for (int i = 0; i < 2; i++) {
- try {
- JJCalls p = jj_2_rtns[i];
- do {
- if (p.gen > 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;
- }
- final 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;
- }
- }