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/*
 * Copyright 2018 OpenAPI-Generator Contributors (https://openapi-generator.tech)
 * Copyright 2018 SmartBear Software
 *
 * 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
 *
 *     https://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 org.openapitools.codegen.templating.mustache;

import com.samskivert.mustache.Mustache;
import com.samskivert.mustache.Template;
import org.openapitools.codegen.CodegenConfig;
import org.openapitools.codegen.utils.CamelizeOption;

import java.io.IOException;
import java.io.Writer;

import static org.openapitools.codegen.utils.CamelizeOption.LOWERCASE_FIRST_LETTER;
import static org.openapitools.codegen.utils.CamelizeOption.UPPERCASE_FIRST_CHAR;
import static org.openapitools.codegen.utils.StringUtils.camelize;

/**
 * Converts text in a fragment to camelCase.
 *
 * Register:
 * 
 * additionalProperties.put("camelcase", new CamelCaseAndSanitizeLambda());
 * 
* * Use: *
 * {{#camelcase}}{{name}}{{/camelcase}}
 * 
*/ public class CamelCaseAndSanitizeLambda implements Mustache.Lambda { private CodegenConfig generator = null; private Boolean escapeParam = false; private CamelizeOption option = LOWERCASE_FIRST_LETTER; public CamelCaseAndSanitizeLambda(boolean lowercaseFirstLetter) { if (lowercaseFirstLetter) { option = LOWERCASE_FIRST_LETTER; } else { option = UPPERCASE_FIRST_CHAR; } } public CamelCaseAndSanitizeLambda() {} public CamelCaseAndSanitizeLambda generator(final CodegenConfig generator) { this.generator = generator; return this; } public CamelCaseAndSanitizeLambda escapeAsParamName(final Boolean escape) { this.escapeParam = escape; return this; } @Override public void execute(Template.Fragment fragment, Writer writer) throws IOException { String text = camelize(fragment.execute().replace(" ", "_"), option); if (generator != null) { text = generator.sanitizeName(text); if (generator.reservedWords().contains(text)) { // Escaping must be done *after* camelize, because generators may escape using characters removed by camelize function. text = generator.escapeReservedWord(text); } if (escapeParam) { // NOTE: many generators call escapeReservedWord in toParamName, but we can't assume that's always the case. // Here, we'll have to accept that we may be duplicating some work. text = generator.toParamName(text); } } writer.write(text); } }




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