com.hubspot.jinjava.tree.parse.ExpressionToken.java Source code

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Here is the source code for com.hubspot.jinjava.tree.parse.ExpressionToken.java

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/**********************************************************************
Copyright (c) 2014 HubSpot Inc.
    
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    
http://www.apache.org/licenses/LICENSE-2.0
    
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
 **********************************************************************/
package com.hubspot.jinjava.tree.parse;

import static com.hubspot.jinjava.tree.parse.TokenScannerSymbols.TOKEN_EXPR_START;

import org.apache.commons.lang3.StringUtils;

import com.hubspot.jinjava.util.WhitespaceUtils;

public class ExpressionToken extends Token {
    private static final long serialVersionUID = 8307037212944170832L;

    private String expr;

    public ExpressionToken(String image, int lineNumber) {
        super(image, lineNumber);
    }

    @Override
    public String toString() {
        StringBuilder s = new StringBuilder("{{ ").append(getExpr()).append("}}");
        return s.toString();
    }

    @Override
    public int getType() {
        return TOKEN_EXPR_START;
    }

    @Override
    protected void parse() {
        this.expr = WhitespaceUtils.unwrap(image, "{{", "}}");

        if (WhitespaceUtils.startsWith(expr, "-")) {
            setLeftTrim(true);
            this.expr = WhitespaceUtils.unwrap(expr, "-", "");
        }
        if (WhitespaceUtils.endsWith(expr, "-")) {
            setRightTrim(true);
            this.expr = WhitespaceUtils.unwrap(expr, "", "-");
        }

        this.expr = StringUtils.trimToEmpty(this.expr);
    }

    public String getExpr() {
        return expr;
    }

}