Secondary Prompt Support

[Hamza Eraoui]

Hi all,

I'm new to JLine, and I'm trying to read multiple lines from the reader when the user presses Shift+Enter. I read in a previous conversation that this feature is built-in to JLine 3. And that I just need to override the parse method after implementing a custom parser, which is what I did. However, I still haven't achieved the desired result.

This is my parse method:

@Override
public ParsedLine parse(String line, int cursor, ParseContext context) throws SyntaxError {

ParsedLine parsedLine = this.defaultParser.parse(line, cursor, context);

if (context == ParseContext.SECONDARY_PROMPT) {
throw new EOFError(-1, -1, "continutation required", line);
}

return parsedLine;
}

What did I do wrong?

This is the whole class:

public class OPMParser implements Parser {

private DefaultParser defaultParser;

public OPMParser() {

this.defaultParser = new DefaultParser();
}

@Override
public ParsedLine parse(String line, int cursor, ParseContext context) throws SyntaxError {

ParsedLine parsedLine = this.defaultParser.parse(line, cursor, context);

if (context == ParseContext.SECONDARY_PROMPT) {
throw new EOFError(-1, -1, "continutation required", line);
}

return parsedLine;
}

@Override
public ParsedLine parse(String line, int cursor) throws SyntaxError {
return Parser.super.parse(line, cursor);
}

@Override
public boolean isEscapeChar(char ch) {
return Parser.super.isEscapeChar(ch);
}

@Override
public boolean validCommandName(String name) {
return Parser.super.validCommandName(name);
}

@Override
public boolean validVariableName(String name) {
return Parser.super.validVariableName(name);
}

@Override
public String getCommand(String line) {
return Parser.super.getCommand(line);
}

@Override
public String getVariable(String line) {
return Parser.super.getVariable(line);
}

}

Thanks in advance for your help.

Hamza,

[Guillaume Nodet]

Try with 

if (context == ParseContext.ACCEPT_LINE || context == ParseContext.SECONDARY_PROMPT) {

    throw new EOFError(-1, -1, "continuation required", line);
}

Guillaume 

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[Hamza Eraoui]

It works, but the problem is that it gets stuck on the new line even when I press Enter. 

The passed context is always ACCEPT_LINE, but I need to pass SECONDARY_PROMPT instead. I'm not sure how to do that.

Hamza,