Package org.codehaus.mojo.natives.parser

Class CobolLineStartState

java.lang.Object

org.codehaus.mojo.natives.parser.AbstractParserState

org.codehaus.mojo.natives.parser.CobolLineStartState

public final class CobolLineStartState
extends AbstractParserState

The state at the start of a COBOL line, which matches the first letter of a COPY directive.

Leading spaces, tabs and digits are skipped so that fixed format sources carrying a sequence number in columns 1 to 6 are handled alongside sources that omit it. Any other character ends the line as far as this parser is concerned, which is what keeps comment lines out: the indicator in column 7 of a commented line is "*" or "/", neither of which is skipped.

Constructor Summary

Constructors

Constructor	Description
CobolLineStartState(AbstractParser parser, char matchLetter, AbstractParserState nextStateArg)	Constructor.

Method Summary

Modifier and Type	Method	Description
AbstractParserState	consume(char ch)	Consumes a character and returns the next state for the parser.

Methods inherited from class org.codehaus.mojo.natives.parser.AbstractParserState

getParser

Methods inherited from class java.lang.Object

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

Constructor Detail

CobolLineStartState

public CobolLineStartState(AbstractParser parser,
                           char matchLetter,
                           AbstractParserState nextStateArg)

Constructor.

Parameters:

parser - parser

matchLetter - letter to match

nextStateArg - next state if a match on the letter

Method Detail

consume

public AbstractParserState consume(char ch)

Consumes a character and returns the next state for the parser.

Specified by:

consume in class AbstractParserState

Parameters:

ch - next character

Returns:

the configured nextState on a match, this state while skipping the sequence area, the new line state on an end of line, or null to abandon the rest of the line