| Methods Summary |
|---|
| boolean | checkQuestion(int off)
return off < this.regexlen && this.regex.charAt(off) == '?";
|
| int | decodeEscaped()
if (this.read() != T_BACKSOLIDUS) throw ex("parser.next.1", this.offset-1);
int c = this.chardata;
switch (c) {
case 'e": c = 0x1b; break; // ESCAPE U+001B
case 'f": c = '\f"; break; // FORM FEED U+000C
case 'n": c = '\n"; break; // LINE FEED U+000A
case 'r": c = '\r"; break; // CRRIAGE RETURN U+000D
case 't": c = '\t"; break; // HORIZONTAL TABULATION U+0009
//case 'v': c = 0x0b; break; // VERTICAL TABULATION U+000B
case 'x":
this.next();
if (this.read() != T_CHAR) throw ex("parser.descape.1", this.offset-1);
if (this.chardata == '{") {
int v1 = 0;
int uv = 0;
do {
this.next();
if (this.read() != T_CHAR) throw ex("parser.descape.1", this.offset-1);
if ((v1 = hexChar(this.chardata)) < 0)
break;
if (uv > uv*16) throw ex("parser.descape.2", this.offset-1);
uv = uv*16+v1;
} while (true);
if (this.chardata != '}") throw ex("parser.descape.3", this.offset-1);
if (uv > Token.UTF16_MAX) throw ex("parser.descape.4", this.offset-1);
c = uv;
} else {
int v1 = 0;
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
int uv = v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
c = uv;
}
break;
case 'u":
int v1 = 0;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
int uv = v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
c = uv;
break;
case 'v":
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
this.next();
if (this.read() != T_CHAR || (v1 = hexChar(this.chardata)) < 0)
throw ex("parser.descape.1", this.offset-1);
uv = uv*16+v1;
if (uv > Token.UTF16_MAX) throw ex("parser.descappe.4", this.offset-1);
c = uv;
break;
case 'A":
case 'Z":
case 'z":
throw ex("parser.descape.5", this.offset-2);
default:
}
return c;
|
| final ParseException | ex(java.lang.String key, int loc)
return new ParseException(this.resources.getString(key), loc);
|
| Token | getTokenForShorthand(int ch)
Token tok;
switch (ch) {
case 'd":
tok = this.isSet(RegularExpression.USE_UNICODE_CATEGORY)
? Token.getRange("Nd", true) : Token.token_0to9;
break;
case 'D":
tok = this.isSet(RegularExpression.USE_UNICODE_CATEGORY)
? Token.getRange("Nd", false) : Token.token_not_0to9;
break;
case 'w":
tok = this.isSet(RegularExpression.USE_UNICODE_CATEGORY)
? Token.getRange("IsWord", true) : Token.token_wordchars;
break;
case 'W":
tok = this.isSet(RegularExpression.USE_UNICODE_CATEGORY)
? Token.getRange("IsWord", false) : Token.token_not_wordchars;
break;
case 's":
tok = this.isSet(RegularExpression.USE_UNICODE_CATEGORY)
? Token.getRange("IsSpace", true) : Token.token_spaces;
break;
case 'S":
tok = this.isSet(RegularExpression.USE_UNICODE_CATEGORY)
? Token.getRange("IsSpace", false) : Token.token_not_spaces;
break;
default:
throw new RuntimeException("Internal Error: shorthands: \\u"+Integer.toString(ch, 16));
}
return tok;
|
| private static final int | hexChar(int ch)
if (ch < '0") return -1;
if (ch > 'f") return -1;
if (ch <= '9") return ch-'0";
if (ch < 'A") return -1;
if (ch <= 'F") return ch-'A"+10;
if (ch < 'a") return -1;
return ch-'a"+10;
|
| private final boolean | isSet(int flag)
return (this.options & flag) == flag;
|
| final void | next()
if (this.offset >= this.regexlen) {
this.chardata = -1;
this.nexttoken = T_EOF;
return;
}
int ret;
int ch = this.regex.charAt(this.offset++);
this.chardata = ch;
if (this.context == S_INBRACKETS) {
// In a character class, this.chardata has one character, that is to say,
// a pair of surrogates is composed and stored to this.chardata.
switch (ch) {
case '\\":
ret = T_BACKSOLIDUS;
if (this.offset >= this.regexlen)
throw ex("parser.next.1", this.offset-1);
this.chardata = this.regex.charAt(this.offset++);
break;
case '-":
if (this.isSet(RegularExpression.XMLSCHEMA_MODE)
&& this.offset < this.regexlen && this.regex.charAt(this.offset) == '[") {
this.offset++;
ret = T_XMLSCHEMA_CC_SUBTRACTION;
} else
ret = T_CHAR;
break;
case '[":
if (!this.isSet(RegularExpression.XMLSCHEMA_MODE)
&& this.offset < this.regexlen && this.regex.charAt(this.offset) == ':") {
this.offset++;
ret = T_POSIX_CHARCLASS_START;
break;
} // Through down
default:
if (REUtil.isHighSurrogate(ch) && this.offset < this.regexlen) {
int low = this.regex.charAt(this.offset);
if (REUtil.isLowSurrogate(low)) {
this.chardata = REUtil.composeFromSurrogates(ch, low);
this.offset ++;
}
}
ret = T_CHAR;
}
this.nexttoken = ret;
return;
}
switch (ch) {
case '|": ret = T_OR; break;
case '*": ret = T_STAR; break;
case '+": ret = T_PLUS; break;
case '?": ret = T_QUESTION; break;
case ')": ret = T_RPAREN; break;
case '.": ret = T_DOT; break;
case '[": ret = T_LBRACKET; break;
case '^":
if (this.isSet(RegularExpression.XMLSCHEMA_MODE)) {
ret = T_CHAR;
}
else {
ret = T_CARET;
}
break;
case '$":
if (this.isSet(RegularExpression.XMLSCHEMA_MODE)) {
ret = T_CHAR;
}
else {
ret = T_DOLLAR;
}
break;
case '(":
ret = T_LPAREN;
if (this.offset >= this.regexlen)
break;
if (this.regex.charAt(this.offset) != '?")
break;
if (++this.offset >= this.regexlen)
throw ex("parser.next.2", this.offset-1);
ch = this.regex.charAt(this.offset++);
switch (ch) {
case ':": ret = T_LPAREN2; break;
case '=": ret = T_LOOKAHEAD; break;
case '!": ret = T_NEGATIVELOOKAHEAD; break;
case '[": ret = T_SET_OPERATIONS; break;
case '>": ret = T_INDEPENDENT; break;
case '<":
if (this.offset >= this.regexlen)
throw ex("parser.next.2", this.offset-3);
ch = this.regex.charAt(this.offset++);
if (ch == '=") {
ret = T_LOOKBEHIND;
} else if (ch == '!") {
ret = T_NEGATIVELOOKBEHIND;
} else
throw ex("parser.next.3", this.offset-3);
break;
case '#":
while (this.offset < this.regexlen) {
ch = this.regex.charAt(this.offset++);
if (ch == ')") break;
}
if (ch != ')")
throw ex("parser.next.4", this.offset-1);
ret = T_COMMENT;
break;
default:
if (ch == '-" || 'a" <= ch && ch <= 'z" || 'A" <= ch && ch <= 'Z") {// Options
this.offset --;
ret = T_MODIFIERS;
break;
} else if (ch == '(") { // conditional
ret = T_CONDITION; // this.offsets points the next of '('.
break;
}
throw ex("parser.next.2", this.offset-2);
}
break;
case '\\":
ret = T_BACKSOLIDUS;
if (this.offset >= this.regexlen)
throw ex("parser.next.1", this.offset-1);
this.chardata = this.regex.charAt(this.offset++);
break;
default:
ret = T_CHAR;
}
this.nexttoken = ret;
|
| synchronized Token | parse(java.lang.String regex, int options)
this.options = options;
this.offset = 0;
this.setContext(S_NORMAL);
this.parennumber = 1;
this.hasBackReferences = false;
this.regex = regex;
if (this.isSet(RegularExpression.EXTENDED_COMMENT))
this.regex = REUtil.stripExtendedComment(this.regex);
this.regexlen = this.regex.length();
this.next();
Token ret = this.parseRegex();
if (this.offset != this.regexlen)
throw ex("parser.parse.1", this.offset);
if (this.references != null) {
for (int i = 0; i < this.references.size(); i ++) {
ReferencePosition position = (ReferencePosition)this.references.elementAt(i);
if (this.parennumber <= position.refNumber)
throw ex("parser.parse.2", position.position);
}
this.references.removeAllElements();
}
return ret;
|
| Token | parseAtom()atom ::= char | '.' | char-class | '(' regex ')' | '(?:' regex ')' | '\' [0-9]
| '\w' | '\W' | '\d' | '\D' | '\s' | '\S' | category-block
| '(?>' regex ')'
char ::= '\\' | '\' [efnrt] | bmp-code | character-1
int ch = this.read();
Token tok = null;
switch (ch) {
case T_LPAREN: return this.processParen();
case T_LPAREN2: return this.processParen2(); // '(?:'
case T_CONDITION: return this.processCondition(); // '(?('
case T_MODIFIERS: return this.processModifiers(); // (?modifiers ... )
case T_INDEPENDENT: return this.processIndependent();
case T_DOT:
this.next(); // Skips '.'
tok = Token.token_dot;
break;
/**
* char-class ::= '[' ( '^'? range ','?)+ ']'
* range ::= '\d' | '\w' | '\s' | category-block | range-char
* | range-char '-' range-char
* range-char ::= '\[' | '\]' | '\\' | '\' [,-efnrtv] | bmp-code | character-2
* bmp-char ::= '\' 'u' [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F]
*/
case T_LBRACKET: return this.parseCharacterClass(true);
case T_SET_OPERATIONS: return this.parseSetOperations();
case T_BACKSOLIDUS:
switch (this.chardata) {
case 'd": case 'D":
case 'w": case 'W":
case 's": case 'S":
tok = this.getTokenForShorthand(this.chardata);
this.next();
return tok;
case 'e": case 'f": case 'n": case 'r":
case 't": case 'u": case 'v": case 'x":
{
int ch2 = this.decodeEscaped();
if (ch2 < 0x10000) {
tok = Token.createChar(ch2);
} else {
tok = Token.createString(REUtil.decomposeToSurrogates(ch2));
}
}
break;
case 'c": return this.processBacksolidus_c();
case 'C": return this.processBacksolidus_C();
case 'i": return this.processBacksolidus_i();
case 'I": return this.processBacksolidus_I();
case 'g": return this.processBacksolidus_g();
case 'X": return this.processBacksolidus_X();
case '1": case '2": case '3": case '4":
case '5": case '6": case '7": case '8": case '9":
return this.processBackreference();
case 'P":
case 'p":
int pstart = this.offset;
tok = processBacksolidus_pP(this.chardata);
if (tok == null) throw this.ex("parser.atom.5", pstart);
break;
default:
tok = Token.createChar(this.chardata);
}
this.next();
break;
case T_CHAR:
if (this.chardata == ']" || this.chardata == '{" || this.chardata == '}")
throw this.ex("parser.atom.4", this.offset-1);
tok = Token.createChar(this.chardata);
int high = this.chardata;
this.next();
if (REUtil.isHighSurrogate(high)
&& this.read() == T_CHAR && REUtil.isLowSurrogate(this.chardata)) {
char[] sur = new char[2];
sur[0] = (char)high;
sur[1] = (char)this.chardata;
tok = Token.createParen(Token.createString(new String(sur)), 0);
this.next();
}
break;
default:
throw this.ex("parser.atom.4", this.offset-1);
}
return tok;
|
| protected RangeToken | parseCharacterClass(boolean useNrange)char-class ::= '[' ( '^'? range ','?)+ ']'
range ::= '\d' | '\w' | '\s' | category-block | range-char
| range-char '-' range-char
range-char ::= '\[' | '\]' | '\\' | '\' [,-efnrtv] | bmp-code | character-2
bmp-code ::= '\' 'u' [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F]
this.setContext(S_INBRACKETS);
this.next(); // '['
boolean nrange = false;
RangeToken base = null;
RangeToken tok;
if (this.read() == T_CHAR && this.chardata == '^") {
nrange = true;
this.next(); // '^'
if (useNrange) {
tok = Token.createNRange();
} else {
base = Token.createRange();
base.addRange(0, Token.UTF16_MAX);
tok = Token.createRange();
}
} else {
tok = Token.createRange();
}
int type;
boolean firstloop = true;
while ((type = this.read()) != T_EOF) {
if (type == T_CHAR && this.chardata == ']" && !firstloop)
break;
firstloop = false;
int c = this.chardata;
boolean end = false;
if (type == T_BACKSOLIDUS) {
switch (c) {
case 'd": case 'D":
case 'w": case 'W":
case 's": case 'S":
tok.mergeRanges(this.getTokenForShorthand(c));
end = true;
break;
case 'i": case 'I":
case 'c": case 'C":
c = this.processCIinCharacterClass(tok, c);
if (c < 0) end = true;
break;
case 'p":
case 'P":
int pstart = this.offset;
RangeToken tok2 = this.processBacksolidus_pP(c);
if (tok2 == null) throw this.ex("parser.atom.5", pstart);
tok.mergeRanges(tok2);
end = true;
break;
default:
c = this.decodeEscaped();
} // \ + c
} // backsolidus
// POSIX Character class such as [:alnum:]
else if (type == T_POSIX_CHARCLASS_START) {
int nameend = this.regex.indexOf(':", this.offset);
if (nameend < 0) throw this.ex("parser.cc.1", this.offset);
boolean positive = true;
if (this.regex.charAt(this.offset) == '^") {
this.offset ++;
positive = false;
}
String name = this.regex.substring(this.offset, nameend);
RangeToken range = Token.getRange(name, positive,
this.isSet(RegularExpression.XMLSCHEMA_MODE));
if (range == null) throw this.ex("parser.cc.3", this.offset);
tok.mergeRanges(range);
end = true;
if (nameend+1 >= this.regexlen || this.regex.charAt(nameend+1) != ']")
throw this.ex("parser.cc.1", nameend);
this.offset = nameend+2;
}
this.next();
if (!end) { // if not shorthands...
if (this.read() != T_CHAR || this.chardata != '-") { // Here is no '-'.
tok.addRange(c, c);
} else {
this.next(); // Skips '-'
if ((type = this.read()) == T_EOF) throw this.ex("parser.cc.2", this.offset);
if (type == T_CHAR && this.chardata == ']") {
tok.addRange(c, c);
tok.addRange('-", '-");
} else {
int rangeend = this.chardata;
if (type == T_BACKSOLIDUS)
rangeend = this.decodeEscaped();
this.next();
tok.addRange(c, rangeend);
}
}
}
if (this.isSet(RegularExpression.SPECIAL_COMMA)
&& this.read() == T_CHAR && this.chardata == ',")
this.next();
}
if (this.read() == T_EOF)
throw this.ex("parser.cc.2", this.offset);
if (!useNrange && nrange) {
base.subtractRanges(tok);
tok = base;
}
tok.sortRanges();
tok.compactRanges();
//tok.dumpRanges();
/*
if (this.isSet(RegularExpression.IGNORE_CASE))
tok = RangeToken.createCaseInsensitiveToken(tok);
*/
this.setContext(S_NORMAL);
this.next(); // Skips ']'
return tok;
|
| Token | parseFactor()factor ::= ('^' | '$' | '\A' | '\Z' | '\z' | '\b' | '\B' | '\<' | '\>'
| atom (('*' | '+' | '?' | minmax ) '?'? )?)
| '(?=' regex ')' | '(?!' regex ')' | '(?<=' regex ')' | '(?<!' regex ')'
| '(?#' [^)]* ')'
minmax ::= '{' min (',' max?)? '}'
min ::= [0-9]+
max ::= [0-9]+
int ch = this.read();
Token tok;
switch (ch) {
case T_CARET: return this.processCaret();
case T_DOLLAR: return this.processDollar();
case T_LOOKAHEAD: return this.processLookahead();
case T_NEGATIVELOOKAHEAD: return this.processNegativelookahead();
case T_LOOKBEHIND: return this.processLookbehind();
case T_NEGATIVELOOKBEHIND: return this.processNegativelookbehind();
case T_COMMENT:
this.next();
return Token.createEmpty();
case T_BACKSOLIDUS:
switch (this.chardata) {
case 'A": return this.processBacksolidus_A();
case 'Z": return this.processBacksolidus_Z();
case 'z": return this.processBacksolidus_z();
case 'b": return this.processBacksolidus_b();
case 'B": return this.processBacksolidus_B();
case '<": return this.processBacksolidus_lt();
case '>": return this.processBacksolidus_gt();
}
// through down
}
tok = this.parseAtom();
ch = this.read();
switch (ch) {
case T_STAR: return this.processStar(tok);
case T_PLUS: return this.processPlus(tok);
case T_QUESTION: return this.processQuestion(tok);
case T_CHAR:
if (this.chardata == '{" && this.offset < this.regexlen) {
int off = this.offset; // this.offset -> next of '{'
int min = 0, max = -1;
if ((ch = this.regex.charAt(off++)) >= '0" && ch <= '9") {
min = ch -'0";
while (off < this.regexlen
&& (ch = this.regex.charAt(off++)) >= '0" && ch <= '9") {
min = min*10 +ch-'0";
if (min < 0)
throw ex("parser.quantifier.5", this.offset);
}
}
else {
throw ex("parser.quantifier.1", this.offset);
}
max = min;
if (ch == ',") {
if (off >= this.regexlen) {
throw ex("parser.quantifier.3", this.offset);
}
else if ((ch = this.regex.charAt(off++)) >= '0" && ch <= '9") {
max = ch -'0"; // {min,max}
while (off < this.regexlen
&& (ch = this.regex.charAt(off++)) >= '0"
&& ch <= '9") {
max = max*10 +ch-'0";
if (max < 0)
throw ex("parser.quantifier.5", this.offset);
}
if (min > max)
throw ex("parser.quantifier.4", this.offset);
}
else { // assume {min,}
max = -1;
}
}
if (ch != '}")
throw ex("parser.quantifier.2", this.offset);
if (this.checkQuestion(off)) { // off -> next of '}'
tok = Token.createNGClosure(tok);
this.offset = off+1;
} else {
tok = Token.createClosure(tok);
this.offset = off;
}
tok.setMin(min);
tok.setMax(max);
//System.err.println("CLOSURE: "+min+", "+max);
this.next();
}
}
return tok;
|
| Token | parseRegex()regex ::= term (`|` term)*
term ::= factor+
factor ::= ('^' | '$' | '\A' | '\Z' | '\z' | '\b' | '\B' | '\<' | '\>'
| atom (('*' | '+' | '?' | minmax ) '?'? )?)
| '(?=' regex ')' | '(?!' regex ')' | '(?<=' regex ')' | '(?<!' regex ')'
atom ::= char | '.' | range | '(' regex ')' | '(?:' regex ')' | '\' [0-9]
| '\w' | '\W' | '\d' | '\D' | '\s' | '\S' | category-block
Token tok = this.parseTerm();
Token parent = null;
while (this.read() == T_OR) {
this.next(); // '|'
if (parent == null) {
parent = Token.createUnion();
parent.addChild(tok);
tok = parent;
}
tok.addChild(this.parseTerm());
}
return tok;
|
| protected RangeToken | parseSetOperations()'(?[' ... ']' (('-' | '+' | '&') '[' ... ']')? ')'
RangeToken tok = this.parseCharacterClass(false);
int type;
while ((type = this.read()) != T_RPAREN) {
int ch = this.chardata;
if (type == T_CHAR && (ch == '-" || ch == '&")
|| type == T_PLUS) {
this.next();
if (this.read() != T_LBRACKET) throw ex("parser.ope.1", this.offset-1);
RangeToken t2 = this.parseCharacterClass(false);
if (type == T_PLUS)
tok.mergeRanges(t2);
else if (ch == '-")
tok.subtractRanges(t2);
else if (ch == '&")
tok.intersectRanges(t2);
else
throw new RuntimeException("ASSERT");
} else {
throw ex("parser.ope.2", this.offset-1);
}
}
this.next();
return tok;
|
| Token | parseTerm()term ::= factor+
int ch = this.read();
if (ch == T_OR || ch == T_RPAREN || ch == T_EOF) {
return Token.createEmpty();
} else {
Token tok = this.parseFactor();
Token concat = null;
while ((ch = this.read()) != T_OR && ch != T_RPAREN && ch != T_EOF) {
if (concat == null) {
concat = Token.createConcat();
concat.addChild(tok);
tok = concat;
}
concat.addChild(this.parseFactor());
//tok = Token.createConcat(tok, this.parseFactor());
}
return tok;
}
|
| Token | processBackreference()
int refnum = this.chardata-'0";
Token tok = Token.createBackReference(refnum);
this.hasBackReferences = true;
if (this.references == null) this.references = new Vector();
this.references.addElement(new ReferencePosition(refnum, this.offset-2));
this.next();
return tok;
|
| Token | processBacksolidus_A()
this.next();
return Token.token_stringbeginning;
|
| Token | processBacksolidus_B()
this.next();
return Token.token_not_wordedge;
|
| Token | processBacksolidus_C()
throw ex("parser.process.1", this.offset);
|
| Token | processBacksolidus_I()
throw ex("parser.process.1", this.offset);
|
| Token | processBacksolidus_X()
this.next();
return Token.getCombiningCharacterSequence();
|
| Token | processBacksolidus_Z()
this.next();
return Token.token_stringend2;
|
| Token | processBacksolidus_b()
this.next();
return Token.token_wordedge;
|
| Token | processBacksolidus_c()
int ch2; // Must be in 0x0040-0x005f
if (this.offset >= this.regexlen
|| ((ch2 = this.regex.charAt(this.offset++)) & 0xffe0) != 0x0040)
throw ex("parser.atom.1", this.offset-1);
this.next();
return Token.createChar(ch2-0x40);
|
| Token | processBacksolidus_g()
this.next();
return Token.getGraphemePattern();
|
| Token | processBacksolidus_gt()
this.next();
return Token.token_wordend;
|
| Token | processBacksolidus_i()
Token tok = Token.createChar('i");
this.next();
return tok;
|
| Token | processBacksolidus_lt()
this.next();
return Token.token_wordbeginning;
|
| protected RangeToken | processBacksolidus_pP(int c)
this.next();
if (this.read() != T_CHAR || this.chardata != '{")
throw this.ex("parser.atom.2", this.offset-1);
// handle category escape
boolean positive = c == 'p";
int namestart = this.offset;
int nameend = this.regex.indexOf('}", namestart);
if (nameend < 0)
throw this.ex("parser.atom.3", this.offset);
String pname = this.regex.substring(namestart, nameend);
this.offset = nameend+1;
return Token.getRange(pname, positive, this.isSet(RegularExpression.XMLSCHEMA_MODE));
|
| Token | processBacksolidus_z()
this.next();
return Token.token_stringend;
|
| int | processCIinCharacterClass(RangeToken tok, int c)
return this.decodeEscaped();
|
| Token | processCaret()
this.next();
return Token.token_linebeginning;
|
| Token | processCondition()
// this.offset points the next of '('
if (this.offset+1 >= this.regexlen) throw ex("parser.factor.4", this.offset);
// Parses a condition.
int refno = -1;
Token condition = null;
int ch = this.regex.charAt(this.offset);
if ('1" <= ch && ch <= '9") {
refno = ch-'0";
this.hasBackReferences = true;
if (this.references == null) this.references = new Vector();
this.references.addElement(new ReferencePosition(refno, this.offset));
this.offset ++;
if (this.regex.charAt(this.offset) != ')") throw ex("parser.factor.1", this.offset);
this.offset ++;
} else {
if (ch == '?") this.offset --; // Points '('.
this.next();
condition = this.parseFactor();
switch (condition.type) {
case Token.LOOKAHEAD:
case Token.NEGATIVELOOKAHEAD:
case Token.LOOKBEHIND:
case Token.NEGATIVELOOKBEHIND:
break;
case Token.ANCHOR:
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
break;
default:
throw ex("parser.factor.5", this.offset);
}
}
// Parses yes/no-patterns.
this.next();
Token yesPattern = this.parseRegex();
Token noPattern = null;
if (yesPattern.type == Token.UNION) {
if (yesPattern.size() != 2) throw ex("parser.factor.6", this.offset);
noPattern = yesPattern.getChild(1);
yesPattern = yesPattern.getChild(0);
}
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next();
return Token.createCondition(refno, condition, yesPattern, noPattern);
|
| Token | processDollar()
this.next();
return Token.token_lineend;
|
| Token | processIndependent()
this.next();
Token tok = Token.createLook(Token.INDEPENDENT, this.parseRegex());
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next(); // Skips ')'
return tok;
|
| Token | processLookahead()
this.next();
Token tok = Token.createLook(Token.LOOKAHEAD, this.parseRegex());
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next(); // ')'
return tok;
|
| Token | processLookbehind()
this.next();
Token tok = Token.createLook(Token.LOOKBEHIND, this.parseRegex());
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next(); // ')'
return tok;
|
| Token | processModifiers()
// this.offset points the next of '?'.
// modifiers ::= [imsw]* ('-' [imsw]*)? ':'
int add = 0, mask = 0, ch = -1;
while (this.offset < this.regexlen) {
ch = this.regex.charAt(this.offset);
int v = REUtil.getOptionValue(ch);
if (v == 0) break; // '-' or ':'?
add |= v;
this.offset ++;
}
if (this.offset >= this.regexlen) throw ex("parser.factor.2", this.offset-1);
if (ch == '-") {
this.offset ++;
while (this.offset < this.regexlen) {
ch = this.regex.charAt(this.offset);
int v = REUtil.getOptionValue(ch);
if (v == 0) break; // ':'?
mask |= v;
this.offset ++;
}
if (this.offset >= this.regexlen) throw ex("parser.factor.2", this.offset-1);
}
Token tok;
if (ch == ':") {
this.offset ++;
this.next();
tok = Token.createModifierGroup(this.parseRegex(), add, mask);
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next();
} else if (ch == ')") { // such as (?-i)
this.offset ++;
this.next();
tok = Token.createModifierGroup(this.parseRegex(), add, mask);
} else
throw ex("parser.factor.3", this.offset);
return tok;
|
| Token | processNegativelookahead()
this.next();
Token tok = Token.createLook(Token.NEGATIVELOOKAHEAD, this.parseRegex());
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next(); // ')'
return tok;
|
| Token | processNegativelookbehind()
this.next();
Token tok = Token.createLook(Token.NEGATIVELOOKBEHIND, this.parseRegex());
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next(); // ')'
return tok;
|
| Token | processParen()
this.next();
int p = this.parennumber++;
Token tok = Token.createParen(this.parseRegex(), p);
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next(); // Skips ')'
return tok;
|
| Token | processParen2()
this.next();
Token tok = Token.createParen(this.parseRegex(), 0);
if (this.read() != T_RPAREN) throw ex("parser.factor.1", this.offset-1);
this.next(); // Skips ')'
return tok;
|
| Token | processPlus(Token tok)
// X+ -> XX*
this.next();
if (this.read() == T_QUESTION) {
this.next();
return Token.createConcat(tok, Token.createNGClosure(tok));
} else
return Token.createConcat(tok, Token.createClosure(tok));
|
| Token | processQuestion(Token tok)
// X? -> X|
this.next();
Token par = Token.createUnion();
if (this.read() == T_QUESTION) {
this.next();
par.addChild(Token.createEmpty());
par.addChild(tok);
} else {
par.addChild(tok);
par.addChild(Token.createEmpty());
}
return par;
|
| Token | processStar(Token tok)
this.next();
if (this.read() == T_QUESTION) {
this.next();
return Token.createNGClosure(tok);
} else
return Token.createClosure(tok);
|
| final int | read()
return this.nexttoken;
|
| protected final void | setContext(int con)
this.context = con;
|
| public void | setLocale(java.util.Locale locale)
try {
this.resources = ResourceBundle.getBundle("org.apache.xerces.impl.xpath.regex.message", locale);
} catch (MissingResourceException mre) {
throw new RuntimeException("Installation Problem??? Couldn't load messages: "
+mre.getMessage());
}
|
