org.yamcs.templating.TemplateParser Maven / Gradle / Ivy
/* Generated By:JavaCC: Do not edit this line. TemplateParser.java */
package org.yamcs.templating;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
public class TemplateParser implements TemplateParserConstants {
final public TemplateBody parse() throws ParseException {
TemplateBody r;
r = body();
jj_consume_token(0);
{if (true) return r;}
throw new Error("Missing return statement in function");
}
final public TemplateBody body() throws ParseException {
TemplateBody result = new TemplateBody();
Statement stmt;
label_1:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case OPEN_VAR:
case OPEN_IF_TAG:
case TEXT:
;
break;
default:
jj_la1[0] = jj_gen;
break label_1;
}
stmt = statement();
result.addStatement(stmt);
}
{if (true) return result;}
throw new Error("Missing return statement in function");
}
final public Statement statement() throws ParseException {
Statement stmt;
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case OPEN_VAR:
stmt = varStatement();
break;
case TEXT:
stmt = textStatement();
break;
case OPEN_IF_TAG:
stmt = ifStatement();
break;
default:
jj_la1[1] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
{if (true) return stmt;}
throw new Error("Missing return statement in function");
}
final public VarStatement varStatement() throws ParseException {
String id;
String filter;
List filters = new ArrayList();
jj_consume_token(OPEN_VAR);
id = identifier();
label_2:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PIPE:
;
break;
default:
jj_la1[2] = jj_gen;
break label_2;
}
jj_consume_token(PIPE);
filter = identifier();
filters.add(filter);
}
jj_consume_token(CLOSE_VAR);
{if (true) return new VarStatement(id, filters);}
throw new Error("Missing return statement in function");
}
final public String identifier() throws ParseException {
jj_consume_token(VAR);
{if (true) return token.image;}
throw new Error("Missing return statement in function");
}
final public TextStatement textStatement() throws ParseException {
jj_consume_token(TEXT);
{if (true) return new TextStatement(token.image);}
throw new Error("Missing return statement in function");
}
final public IfStatement ifStatement() throws ParseException {
String condition;
TemplateBody ifBody;
String elifCondition = null;
TemplateBody elifBody = null;
LinkedHashMap elifConditions = new LinkedHashMap();
TemplateBody elseBody = null;
jj_consume_token(OPEN_IF_TAG);
condition = identifier();
jj_consume_token(CLOSE_IF_ELIF_TAG);
ifBody = body();
label_3:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case OPEN_ELIF_TAG:
;
break;
default:
jj_la1[3] = jj_gen;
break label_3;
}
jj_consume_token(OPEN_ELIF_TAG);
elifCondition = identifier();
jj_consume_token(CLOSE_IF_ELIF_TAG);
elifBody = body();
elifConditions.put(elifCondition, elifBody);
}
if (jj_2_1(2)) {
jj_consume_token(OPEN_TAG);
jj_consume_token(ELSE);
jj_consume_token(CLOSE_TAG);
elseBody = body();
} else {
;
}
jj_consume_token(OPEN_TAG);
jj_consume_token(ENDIF);
jj_consume_token(CLOSE_TAG);
{if (true) return new IfStatement(condition, ifBody, elifConditions, elseBody);}
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_3_1() {
if (jj_scan_token(OPEN_TAG)) return true;
if (jj_scan_token(ELSE)) return true;
return false;
}
/** Generated Token Manager. */
public TemplateParserTokenManager token_source;
SimpleCharStream jj_input_stream;
/** Current token. */
public Token token;
/** Next token. */
public 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[4];
static private int[] jj_la1_0;
static {
jj_la1_init_0();
}
private static void jj_la1_init_0() {
jj_la1_0 = new int[] {0x580,0x580,0x8000,0x200,};
}
final private JJCalls[] jj_2_rtns = new JJCalls[1];
private boolean jj_rescan = false;
private int jj_gc = 0;
/** Constructor with InputStream. */
public TemplateParser(java.io.InputStream stream) {
this(stream, null);
}
/** Constructor with InputStream and supplied encoding */
public TemplateParser(java.io.InputStream stream, String encoding) {
try { jj_input_stream = new SimpleCharStream(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
token_source = new TemplateParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 4; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
}
/** Reinitialise. */
public void ReInit(java.io.InputStream stream) {
ReInit(stream, null);
}
/** Reinitialise. */
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 < 4; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
}
/** Constructor. */
public TemplateParser(java.io.Reader stream) {
jj_input_stream = new SimpleCharStream(stream, 1, 1);
token_source = new TemplateParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 4; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
}
/** Reinitialise. */
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 < 4; 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. */
public TemplateParser(TemplateParserTokenManager tm) {
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 4; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
}
/** Reinitialise. */
public void ReInit(TemplateParserTokenManager tm) {
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 4; 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 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();
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 public 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 public 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 ParseException. */
public ParseException generateParseException() {
jj_expentries.clear();
boolean[] la1tokens = new boolean[18];
if (jj_kind >= 0) {
la1tokens[jj_kind] = true;
jj_kind = -1;
}
for (int i = 0; i < 4; 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;
}
}
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;
}
}
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