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java.lang.Object | +--org.apache.regexp.RECompiler | +--org.apache.regexp.REDebugCompiler
A subclass of RECompiler which can dump a regular expression program for debugging purposes.
Inner classes inherited from class org.apache.regexp.RECompiler |
RECompiler.RERange |
Field Summary | |
(package private) static java.util.Hashtable |
hashOpcode
Mapping from opcodes to descriptive strings |
Fields inherited from class org.apache.regexp.RECompiler |
bracketEnd, bracketFinished, bracketMin, bracketOpt, brackets, bracketStart, bracketUnbounded, ESC_BACKREF, ESC_CLASS, ESC_COMPLEX, ESC_MASK, hashPOSIX, idx, instruction, len, lenInstruction, maxBrackets, NODE_NORMAL, NODE_NULLABLE, NODE_TOPLEVEL, parens, pattern |
Constructor Summary | |
REDebugCompiler()
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Method Summary | |
(package private) static void |
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(package private) java.lang.String |
charToString(char c)
Return a string describing a (possibly unprintable) character. |
void |
dumpProgram(java.io.PrintWriter p)
Dumps the current program to a PrintWriter |
(package private) java.lang.String |
nodeToString(int node)
Returns a descriptive string for a node in a regular expression program. |
(package private) java.lang.String |
opcodeToString(char opcode)
Returns a descriptive string for an opcode. |
Methods inherited from class org.apache.regexp.RECompiler |
allocBrackets, atom, bracket, branch, characterClass, closure, compile, emit, ensure, escape, expr, internalError, node, nodeInsert, setNextOfEnd, syntaxError, terminal |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait |
Field Detail |
static java.util.Hashtable hashOpcode
Constructor Detail |
public REDebugCompiler()
Method Detail |
static void()
java.lang.String opcodeToString(char opcode)
opcode
- Opcode to convert to a stringjava.lang.String charToString(char c)
c
- Character to convert to a printable representationjava.lang.String nodeToString(int node)
node
- Node to describepublic void dumpProgram(java.io.PrintWriter p)
p
- PrintWriter for program dump output
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