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com.jcorporate.expresso.ext.regexp
Class RECompiler
java.lang.Objectcom.jcorporate.expresso.ext.regexp.RECompiler
Deprecated. since v5.6, use jakarta oro
- public class RECompiler
- extends java.lang.Object
A regular expression compiler class. This class compiles a pattern string into a regular expression program interpretable by the RE evaluator class. The 'recompile' command line tool uses this compiler to pre-compile regular expressions for use with RE. For a description of the syntax accepted by RECompiler and what you can do with regular expressions, see the documentation for the RE matcher class.
- Version:
- $Id: RECompiler.java,v 1.7 2004/11/17 20:48:15 lhamel Exp $
| Nested Class Summary | |
(package private) class |
RECompiler.RERange
Deprecated. Local, nested class for maintaining character ranges for character classes. |
| Field Summary | |
(package private) static int[] |
bracketEnd
Deprecated. |
(package private) static int |
bracketFinished
Deprecated. |
(package private) static int[] |
bracketMin
Deprecated. |
(package private) static int[] |
bracketOpt
Deprecated. |
(package private) static int |
brackets
Deprecated. |
(package private) static int[] |
bracketStart
Deprecated. |
(package private) static int |
bracketUnbounded
Deprecated. |
(package private) static char |
ESC_BACKREF
Deprecated. |
(package private) static char |
ESC_CLASS
Deprecated. |
(package private) static char |
ESC_COMPLEX
Deprecated. |
(package private) static char |
ESC_MASK
Deprecated. |
(package private) static java.util.Hashtable |
hashPOSIX
Deprecated. |
(package private) int |
idx
Deprecated. |
(package private) char[] |
instruction
Deprecated. |
(package private) int |
len
Deprecated. |
(package private) int |
lenInstruction
Deprecated. |
(package private) static int |
maxBrackets
Deprecated. |
(package private) static int |
NODE_NORMAL
Deprecated. |
(package private) static int |
NODE_NULLABLE
Deprecated. |
(package private) static int |
NODE_TOPLEVEL
Deprecated. |
(package private) int |
parens
Deprecated. |
(package private) java.lang.String |
pattern
Deprecated. |
| Constructor Summary | |
RECompiler()
Deprecated. Constructor. |
|
| Method Summary | |
(package private) void |
allocBrackets()
Deprecated. Allocate storage for brackets only as needed |
(package private) int |
atom()
Deprecated. Absorb an atomic character string. |
(package private) void |
bracket()
Deprecated. Match bracket {m,n} expression put results in bracket member variables |
(package private) int |
branch(int[] flags)
Deprecated. Compile one branch of an or operator (implements concatenation) |
(package private) int |
characterClass()
Deprecated. Compile a character class |
(package private) int |
closure(int[] flags)
Deprecated. Compile a possibly closured terminal |
REProgram |
compile(java.lang.String pattern)
Deprecated. Compiles a regular expression pattern into a program runnable by the pattern matcher class 'RE'. |
(package private) void |
emit(char c)
Deprecated. Emit a single character into the program stream. |
(package private) void |
ensure(int n)
Deprecated. Ensures that n more characters can fit in the program buffer. |
(package private) char |
escape()
Deprecated. Match an escape sequence. |
(package private) int |
expr(int[] flags)
Deprecated. Compile an expression with possible parens around it. |
(package private) void |
internalError()
Deprecated. Throws a new internal error exception |
(package private) int |
node(char opcode,
int opdata)
Deprecated. Adds a new node |
(package private) void |
nodeInsert(char opcode,
int opdata,
int insertAt)
Deprecated. Inserts a node with a given opcode and opdata at insertAt. |
(package private) void |
setNextOfEnd(int node,
int pointTo)
Deprecated. Appends a node to the end of a node chain |
(package private) void |
syntaxError(java.lang.String s)
Deprecated. Throws a new syntax error exception |
(package private) int |
terminal(int[] flags)
Deprecated. Match a terminal node. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
instruction
char[] instruction
- Deprecated.
lenInstruction
int lenInstruction
- Deprecated.
pattern
java.lang.String pattern
- Deprecated.
len
int len
- Deprecated.
idx
int idx
- Deprecated.
parens
int parens
- Deprecated.
NODE_NORMAL
static final int NODE_NORMAL
- Deprecated.
- See Also:
- Constant Field Values
NODE_NULLABLE
static final int NODE_NULLABLE
- Deprecated.
- See Also:
- Constant Field Values
NODE_TOPLEVEL
static final int NODE_TOPLEVEL
- Deprecated.
- See Also:
- Constant Field Values
ESC_MASK
static final char ESC_MASK
- Deprecated.
- See Also:
- Constant Field Values
ESC_BACKREF
static final char ESC_BACKREF
- Deprecated.
- See Also:
- Constant Field Values
ESC_COMPLEX
static final char ESC_COMPLEX
- Deprecated.
- See Also:
- Constant Field Values
ESC_CLASS
static final char ESC_CLASS
- Deprecated.
- See Also:
- Constant Field Values
maxBrackets
static final int maxBrackets
- Deprecated.
- See Also:
- Constant Field Values
brackets
static int brackets
- Deprecated.
bracketStart
static int[] bracketStart
- Deprecated.
bracketEnd
static int[] bracketEnd
- Deprecated.
bracketMin
static int[] bracketMin
- Deprecated.
bracketOpt
static int[] bracketOpt
- Deprecated.
bracketUnbounded
static final int bracketUnbounded
- Deprecated.
- See Also:
- Constant Field Values
bracketFinished
static final int bracketFinished
- Deprecated.
- See Also:
- Constant Field Values
hashPOSIX
static java.util.Hashtable hashPOSIX
- Deprecated.
| Constructor Detail |
RECompiler
public RECompiler()
- Deprecated.
- Constructor. Creates (initially empty) storage for a regular expression program.
- Constructor. Creates (initially empty) storage for a regular expression program.
| Method Detail |
allocBrackets
void allocBrackets()
- Deprecated.
- Allocate storage for brackets only as needed
- Allocate storage for brackets only as needed
atom
int atom() throws RESyntaxException
- Deprecated.
- Absorb an atomic character string. This method is a little tricky because it can un-include the last character of string if a closure operator follows. This is correct because *+? have higher precedence than concatentation (thus ABC* means AB(C*) and NOT (ABC)*).
- Absorb an atomic character string. This method is a little tricky because it can un-include the last character of string if a closure operator follows. This is correct because *+? have higher precedence than concatentation (thus ABC* means AB(C*) and NOT (ABC)*).
bracket
void bracket()
throws RESyntaxException
- Deprecated.
- Match bracket {m,n} expression put results in bracket member variables
- Match bracket {m,n} expression put results in bracket member variables
branch
int branch(int[] flags)
throws RESyntaxException
- Deprecated.
- Compile one branch of an or operator (implements concatenation)
- Compile one branch of an or operator (implements concatenation)
characterClass
int characterClass()
throws RESyntaxException
- Deprecated.
- Compile a character class
- Compile a character class
closure
int closure(int[] flags)
throws RESyntaxException
- Deprecated.
- Compile a possibly closured terminal
- Compile a possibly closured terminal
compile
public REProgram compile(java.lang.String pattern) throws RESyntaxException
- Deprecated.
- Compiles a regular expression pattern into a program runnable by the pattern matcher class 'RE'.
- Compiles a regular expression pattern into a program runnable by the pattern matcher class 'RE'.
emit
void emit(char c)
- Deprecated.
- Emit a single character into the program stream.
- Emit a single character into the program stream.
ensure
void ensure(int n)
- Deprecated.
- Ensures that n more characters can fit in the program buffer. If n more can't fit, then the size is doubled until it can.
- Ensures that n more characters can fit in the program buffer. If n more can't fit, then the size is doubled until it can.
escape
char escape()
throws RESyntaxException
- Deprecated.
- Match an escape sequence. Handles quoted chars and octal escapes as well as normal escape characters. Always advances the input stream by the right amount. This code "understands" the subtle difference between an octal escape and a backref. You can access the type of ESC_CLASS or ESC_COMPLEX or ESC_BACKREF by looking at pattern[idx - 1].
- Match an escape sequence. Handles quoted chars and octal escapes as well as normal escape characters. Always advances the input stream by the right amount. This code "understands" the subtle difference between an octal escape and a backref. You can access the type of ESC_CLASS or ESC_COMPLEX or ESC_BACKREF by looking at pattern[idx - 1].
expr
int expr(int[] flags) throws RESyntaxException
- Deprecated.
- Compile an expression with possible parens around it. Paren matching is done at this level so we can tie the branch tails together.
- Compile an expression with possible parens around it. Paren matching is done at this level so we can tie the branch tails together.
internalError
void internalError()
throws java.lang.Error
- Deprecated.
- Throws a new internal error exception
- Throws a new internal error exception
node
int node(char opcode,
int opdata)
- Deprecated.
- Adds a new node
- Adds a new node
nodeInsert
void nodeInsert(char opcode,
int opdata,
int insertAt)
- Deprecated.
- Inserts a node with a given opcode and opdata at insertAt. The node relative next pointer is initialized to 0.
- Inserts a node with a given opcode and opdata at insertAt. The node relative next pointer is initialized to 0.
setNextOfEnd
void setNextOfEnd(int node,
int pointTo)
- Deprecated.
- Appends a node to the end of a node chain
- Appends a node to the end of a node chain
syntaxError
void syntaxError(java.lang.String s) throws RESyntaxException
- Deprecated.
- Throws a new syntax error exception
- Throws a new syntax error exception
terminal
int terminal(int[] flags)
throws RESyntaxException
- Deprecated.
- Match a terminal node.
- Match a terminal node.
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SUMMARY: JAVADOC | SOURCE | DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||