JFlex
Class Main

java.lang.Object
  JFlex.Main

All Implemented Interfaces:

ErrorMessages

public class Main

extends java.lang.Object

implements ErrorMessages

This is the main class of JFlex controlling the scanner generation process. It is responsible for parsing the commandline, getting input files, starting up the GUI if necessary, etc.

Field Summary

static int	gen_method default code generation method
static boolean	no_backup don't write backup files if this is true
static boolean	no_minimize don't run minimization algorithm if this is true
static int	PACK code generation method: maximum packing
static int	SWITCH code generation method: switch statement
static int	TABLE code generation method: traditional
static java.lang.String	version JFlex version

Fields inherited from interface JFlex.ErrorMessages

CHARCLASS_MACRO, CHARSET_2_SMALL, CS2SMALL_CHAR, CS2SMALL_STRING, CUPSYM_AFTER_CUP, EOF_IN_ACTION, EOF_IN_COMMENT, EOF_IN_MACROS, EOF_IN_REGEXP, EOF_IN_STATES, EOF_IN_STRING, EOF_SINGLERULE, EOF_WO_ACTION, EOL_IN_CHARCLASS, FILE_CYCLE, FILE_WRITE, LEXSTATE_UNDECL, LOOKAHEAD_ERROR, MACRO_UNDECL, messages, NEVER_MATCH, NO_BUFFER_SIZE, NO_DIRECTORY, NO_LAST_ACTION, NO_LEX_SPEC, NO_MATCHING_BR, NO_SKEL_FILE, NOT_AT_BOL, NOT_READABLE, OUT_OF_MEMORY, QUIL_CUPSYM, QUIL_EOFTHROW, QUIL_INITTHROW, QUIL_SCANERROR, QUIL_THROW, QUIL_YYLEXTHROW, REGEXP_EXPECTED, REPEAT_GREATER, REPEAT_ZERO, STATE_IDENT_EXP, SYNTAX_ERROR, UNEXPECTED_CHAR, UNEXPECTED_EOF, UNEXPECTED_NL, UNKNOWN_OPTION, UNKNOWN_SYNTAX, UNTERMINATED_STR, WRONG_SKELETON, ZERO_STATES

Constructor Summary

Main()

Method Summary

static void	generate(java.io.File inputFile) Generates a scanner for the specified input file.
static void	generate(java.lang.String[] argv)
static void	main(java.lang.String[] argv) Starts the generation process with the files in argv or pops up a window to choose a file, when argv doesn't have any file entries.
static java.util.Vector	parseOptions(java.lang.String[] argv)
static void	printUsage()
static void	setDir(java.lang.String dirName)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

version

public static final java.lang.String version

JFlex version

See Also:

Constant Field Values

PACK

public static final int PACK

code generation method: maximum packing

See Also:

Constant Field Values

TABLE

public static final int TABLE

code generation method: traditional

See Also:

Constant Field Values

SWITCH

public static final int SWITCH

code generation method: switch statement

See Also:

Constant Field Values

no_minimize

public static boolean no_minimize

don't run minimization algorithm if this is true

no_backup

public static boolean no_backup

don't write backup files if this is true

gen_method

public static int gen_method

default code generation method

Constructor Detail

Main

public Main()

Method Detail

generate

public static void generate(java.io.File inputFile)

Generates a scanner for the specified input file.

Parameters:

inputFile - a file containing a lexical specification to generate a scanner for.

setDir

public static void setDir(java.lang.String dirName)

parseOptions

public static java.util.Vector parseOptions(java.lang.String[] argv)

printUsage

public static void printUsage()

generate

public static void generate(java.lang.String[] argv)

main

public static void main(java.lang.String[] argv)

Starts the generation process with the files in argv or pops up a window to choose a file, when argv doesn't have any file entries.

Parameters:

argv - the commandline.