src/main/java/com/google/devtools/build/docgen/DocgenConsts.java - bazel - Git at Google

 // Copyright 2014 The Bazel Authors. All rights reserved.
 //
 // 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.google.devtools.build.docgen;

 import com.google.common.base.Joiner;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.devtools.build.lib.util.FileType;
 import com.google.devtools.build.lib.util.FileTypeSet;
 import java.util.regex.Pattern;

 /**
  * All the constants for the Docgen project.
  */
 public class DocgenConsts {

   public static final String LS = "\n";

   public static final String BE_TEMPLATE_DIR =
       "com/google/devtools/build/docgen/templates/be";
   public static final String SINGLE_BE_TEMPLATE = BE_TEMPLATE_DIR + "/single-page.vm";
   public static final String COMMON_DEFINITIONS_TEMPLATE =
       BE_TEMPLATE_DIR + "/common-definitions.vm";
   public static final String OVERVIEW_TEMPLATE = BE_TEMPLATE_DIR + "/overview.vm";
   public static final String RULES_TEMPLATE = BE_TEMPLATE_DIR + "/rules.vm";
   public static final String BE_NAV_TEMPLATE = BE_TEMPLATE_DIR + "/be-nav.vm";
   public static final String BE_TOC_TEMPLATE = BE_TEMPLATE_DIR + "/be-toc.vm";

   public static final String STARLARK_LIBRARY_TEMPLATE =
       "com/google/devtools/build/docgen/templates/starlark-library.vm";
   public static final String STARLARK_MODULE_CATEGORY_TEMPLATE =
       "com/google/devtools/build/docgen/templates/starlark-category.vm";
   public static final String STARLARK_OVERVIEW_TEMPLATE =
       "com/google/devtools/build/docgen/templates/starlark-overview.vm";
   public static final String STARLARK_TOC_TEMPLATE =
       "com/google/devtools/build/docgen/templates/starlark-toc.vm";

   public static final String VAR_LEFT_PANEL = "LEFT_PANEL";

   public static final String VAR_SECTION_BINARY = "SECTION_BINARY";
   public static final String VAR_SECTION_LIBRARY = "SECTION_LIBRARY";
   public static final String VAR_SECTION_TEST = "SECTION_TEST";
   public static final String VAR_SECTION_OTHER = "SECTION_OTHER";

   public static final String VAR_IMPLICIT_OUTPUTS = "IMPLICIT_OUTPUTS";
   public static final String VAR_NAME = "NAME";
   public static final String VAR_LANG_SPECIFIC_HEADER_TABLE = "LANG_SPECIFIC_HEADER_TABLE";
   public static final String VAR_OTHER_RULES_HEADER_TABLE = "OTHER_RULES_HEADER_TABLE";
   public static final String VAR_COMMON_ATTRIBUTE_DEFINITION = "COMMON_ATTRIBUTE_DEFINITION";
   public static final String VAR_TEST_ATTRIBUTE_DEFINITION = "TEST_ATTRIBUTE_DEFINITION";
   public static final String VAR_BINARY_ATTRIBUTE_DEFINITION = "BINARY_ATTRIBUTE_DEFINITION";

   public static final String VAR_SECTION_STARLARK_BUILTIN = "SECTION_BUILTIN";

   public static final String TYPICAL_ATTRIBUTES = "typical";
   public static final String COMMON_ATTRIBUTES = "common";
   public static final String TEST_ATTRIBUTES = "test";
   public static final String BINARY_ATTRIBUTES = "binary";

   /**
    * Mark the attribute as deprecated in the Build Encyclopedia.
    */
   public static final String FLAG_DEPRECATED = "DEPRECATED";
   public static final String FLAG_GENERIC_RULE = "GENERIC_RULE";

   public static final String HEADER_COMMENT = Joiner.on("\n").join(ImmutableList.<String>of(
       "<!DOCTYPE html>",
       "<!--",
       " This document is synchronized with Bazel releases.",
       " To edit, submit changes to the Bazel source code.",
       "-->",
       "",
       "<!-- Generated by //java/com/google/devtools/build/docgen:build-encyclopedia.zip -->"));

   public static final FileTypeSet JAVA_SOURCE_FILE_SUFFIX = FileTypeSet.of(FileType.of(".java"));

   public static final String META_KEY_NAME = "NAME";
   public static final String META_KEY_TYPE = "TYPE";
   public static final String META_KEY_FAMILY = "FAMILY";

   /**
    * For Starlark rules, this type name is equivalent to {@link RuleType#OTHER} with the {@link
    * FLAG_GENERIC_RULE} flag set.
    *
    * <p>Example: "generic_rules.genrule" would be classified as a generic rule of type OTHER.
    */
   public static final String STARLARK_GENERIC_RULE_TYPE = "GENERIC";

   /** Types a rule can have (Binary, Library, Test or Other). */
   public static enum RuleType {
       BINARY, LIBRARY, TEST, OTHER
   }

   /**
    * Reference to another rule or Build Encyclopedia section.
    *
    * <p>The format of a link reference is rule.attribute (e.g. cc_library.deps). In the case of
    * static pages such as common definitions the format is page.heading
    * (e.g. common-definitions.label-expansion).
    */
   public static final Pattern BLAZE_RULE_LINK = Pattern.compile(
       "\\$\\{link (([a-zA-Z_-]+)(\\.([a-zA-Z_\\.-]+))?)\\}");

   public static final Pattern BLAZE_RULE_HEADING_LINK =
       Pattern.compile("\\$\\{link (([a-zA-Z_-]+)\\#([a-zA-Z0-9_\\.-]+))\\}");

   /**
    * i.e.
    * <!-- #FAMILY_SUMMARY -->
    */
   public static final Pattern FAMILY_SUMMARY_START =
       Pattern.compile("([\\s]*/\\*)?[\\s]*\\<!--[\\s]*#FAMILY_SUMMARY[\\s]*--\\>[\\s]*");

   /**
    * i.e.
    * <!-- #END_FAMILY_SUMMARY -->
    */
   public static final Pattern FAMILY_SUMMARY_END =
       Pattern.compile("[\\s]*\\<!--[\\s]*#END_FAMILY_SUMMARY[\\s]*--\\>[\\s]*(\\*/[\\s]*)?");

   /**
    * i.e. <!-- #BLAZE_RULE(NAME = RULE_NAME, TYPE = RULE_TYPE, FAMILY = RULE_FAMILY) -->
    * i.e. <!-- #BLAZE_RULE(...)[DEPRECATED] -->
    */
   public static final Pattern BLAZE_RULE_START = Pattern.compile(
       "^[\\s]*/\\*[\\s]*\\<!\\-\\-[\\s]*#BLAZE_RULE[\\s]*\\(([\\w\\s=,+/()-]+)\\)"
       + "(\\[[\\w,]+\\])?[\\s]*\\-\\-\\>");
   /**
    * i.e. <!-- #END_BLAZE_RULE -->
    */
   public static final Pattern BLAZE_RULE_END = Pattern.compile(
       "^[\\s]*\\<!\\-\\-[\\s]*#END_BLAZE_RULE[\\s]*\\-\\-\\>[\\s]*\\*/");
   /**
    * i.e. <!-- #BLAZE_RULE(RULE_NAME).VARIABLE_NAME -->
    */
   public static final Pattern BLAZE_RULE_VAR_START = Pattern.compile(
       "^[\\s]*/\\*[\\s]*\\<!\\-\\-[\\s]*#BLAZE_RULE\\(([\\w\\$]+)\\)\\.([\\w]+)[\\s]*\\-\\-\\>");
   /**
    * i.e. <!-- #END_BLAZE_RULE.VARIABLE_NAME -->
    */
   public static final Pattern BLAZE_RULE_VAR_END = Pattern.compile(
       "^[\\s]*\\<!\\-\\-[\\s]*#END_BLAZE_RULE\\.([\\w]+)[\\s]*\\-\\-\\>[\\s]*\\*/");
   /**
    * i.e. <!-- #BLAZE_RULE(RULE_NAME).ATTRIBUTE(ATTR_NAME) -->
    * i.e. <!-- #BLAZE_RULE(RULE_NAME).ATTRIBUTE(ATTR_NAME)[DEPRECATED] -->
    */
   public static final Pattern BLAZE_RULE_ATTR_START = Pattern.compile(
       "^[\\s]*/\\*[\\s]*\\<!\\-\\-[\\s]*#BLAZE_RULE\\(([\\w\\$]+)\\)\\."
       + "ATTRIBUTE\\(([\\w]+)\\)(\\[[\\w,]+\\])?[\\s]*\\-\\-\\>");
   /**
    * i.e. <!-- #END_BLAZE_RULE.ATTRIBUTE -->
    */
   public static final Pattern BLAZE_RULE_ATTR_END = Pattern.compile(
       "^[\\s]*\\<!\\-\\-[\\s]*#END_BLAZE_RULE\\.ATTRIBUTE[\\s]*\\-\\-\\>[\\s]*\\*/");

   /** e.g. "[DEPRECATED]" in &lt;!-- #BLAZE_RULE(...).ATTRIBUTE(...)[DEPRECATED] --&gt; */
   public static final Pattern BLAZE_RULE_FLAGS = Pattern.compile("^.*\\[(.*)\\].*$");

   /**
    * Example:
    *
    * <pre>
    * """
    * FooLang
    *
    * Note that native FooLang rules are experimental.
    * """
    * </pre>
    *
    * where "FooLang" is the family name and "Note that ..." is the summary.
    */
   public static final Pattern STARDOC_OUTPUT_FAMILY_NAME_AND_SUMMARY =
       Pattern.compile("^(?<family>[^\n]+)(?:\n\n(?<summary>[^\n].*))?$");

   /**
    * Example: "library_rules.java_import", where "library" is the rule type and "java_import" is the
    * rule name.
    */
   public static final Pattern STARDOC_OUTPUT_RULE_NAME =
       Pattern.compile("^(?<type>[^.\\s]+)_rules\\.(?<name>[^.\\s]+)$");

   /**
    * Examples:
    *
    * <ul>
    *   <li>"Deprecated: Use <code>other_attribute</code> instead."
    *   <li>"(File|str) Deprecated: Use <code>other_field</code> instead."
    * </ul>
    */
   public static final Pattern STARDOC_OUTPUT_DEPRECATED_DOCSTRING =
       Pattern.compile("^(?:\\(.*\\) )?Deprecated: (?<reason>.+)$");

   public static final ImmutableMap<String, Integer> ATTRIBUTE_ORDERING =
       ImmutableMap.<String, Integer>builder()
           .put("name", -99)
           .put("deps", -98)
           .put("src", -97)
           .put("srcs", -96)
           .put("data", -95)
           .put("resource", -94)
           .put("resources", -93)
           .put("out", -92)
           .put("outs", -91)
           .put("hdrs", -90)
           .buildOrThrow();

   // The following variables are not constants as they can be overridden from
   // StarlarkDocumentationProcessor#parseOptions
   // Their purpose is to allow generated Starlark documentation to link into the build encyclopedia.

   // Root directory of *narrative* Starlark documentation files such as rules.md
   public static String starlarkDocsRoot = "/rules";

   static String toCommandLineFormat(String cmdDoc) {
     // Replace html <br> tags with line breaks
     cmdDoc = cmdDoc.replaceAll("(<br>|<br[\\s]*/>)", "\n") + "\n";
     // Replace other links <a href=".*">s with human readable links
     cmdDoc = cmdDoc.replaceAll("\\<a href=\"([^\"]+)\">[^\\<]*\\</a\\>", "$1");
     // Delete other html tags
     cmdDoc = cmdDoc.replaceAll("\\<[/]?[^\\>]+\\>", "");
     // Delete docgen variables
     cmdDoc = cmdDoc.replaceAll("\\$\\{[\\w_]+\\}", "");
     // Substitute more than 2 line breaks in a row with 2 line breaks
     cmdDoc = cmdDoc.replaceAll("[\\n]{2,}", "\n\n");
     // Ensure that the doc starts and ends with exactly two line breaks
     cmdDoc = cmdDoc.replaceAll("^[\\n]+", "\n\n");
     cmdDoc = cmdDoc.replaceAll("[\\n]+$", "\n\n");
     return cmdDoc;
   }

   static String removeDuplicatedNewLines(String doc) {
     return doc.replaceAll("[\\n][\\s]*[\\n]", "\n");
   }
 }
	// Copyright 2014 The Bazel Authors. All rights reserved.
	//
	// 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.google.devtools.build.docgen;

	import com.google.common.base.Joiner;
	import com.google.common.collect.ImmutableList;
	import com.google.common.collect.ImmutableMap;
	import com.google.devtools.build.lib.util.FileType;
	import com.google.devtools.build.lib.util.FileTypeSet;
	import java.util.regex.Pattern;

	/**
	* All the constants for the Docgen project.
	*/
	public class DocgenConsts {

	public static final String LS = "\n";

	public static final String BE_TEMPLATE_DIR =
	"com/google/devtools/build/docgen/templates/be";
	public static final String SINGLE_BE_TEMPLATE = BE_TEMPLATE_DIR + "/single-page.vm";
	public static final String COMMON_DEFINITIONS_TEMPLATE =
	BE_TEMPLATE_DIR + "/common-definitions.vm";
	public static final String OVERVIEW_TEMPLATE = BE_TEMPLATE_DIR + "/overview.vm";
	public static final String RULES_TEMPLATE = BE_TEMPLATE_DIR + "/rules.vm";
	public static final String BE_NAV_TEMPLATE = BE_TEMPLATE_DIR + "/be-nav.vm";
	public static final String BE_TOC_TEMPLATE = BE_TEMPLATE_DIR + "/be-toc.vm";

	public static final String STARLARK_LIBRARY_TEMPLATE =
	"com/google/devtools/build/docgen/templates/starlark-library.vm";
	public static final String STARLARK_MODULE_CATEGORY_TEMPLATE =
	"com/google/devtools/build/docgen/templates/starlark-category.vm";
	public static final String STARLARK_OVERVIEW_TEMPLATE =
	"com/google/devtools/build/docgen/templates/starlark-overview.vm";
	public static final String STARLARK_TOC_TEMPLATE =
	"com/google/devtools/build/docgen/templates/starlark-toc.vm";

	public static final String VAR_LEFT_PANEL = "LEFT_PANEL";

	public static final String VAR_SECTION_BINARY = "SECTION_BINARY";
	public static final String VAR_SECTION_LIBRARY = "SECTION_LIBRARY";
	public static final String VAR_SECTION_TEST = "SECTION_TEST";
	public static final String VAR_SECTION_OTHER = "SECTION_OTHER";

	public static final String VAR_IMPLICIT_OUTPUTS = "IMPLICIT_OUTPUTS";
	public static final String VAR_NAME = "NAME";
	public static final String VAR_LANG_SPECIFIC_HEADER_TABLE = "LANG_SPECIFIC_HEADER_TABLE";
	public static final String VAR_OTHER_RULES_HEADER_TABLE = "OTHER_RULES_HEADER_TABLE";
	public static final String VAR_COMMON_ATTRIBUTE_DEFINITION = "COMMON_ATTRIBUTE_DEFINITION";
	public static final String VAR_TEST_ATTRIBUTE_DEFINITION = "TEST_ATTRIBUTE_DEFINITION";
	public static final String VAR_BINARY_ATTRIBUTE_DEFINITION = "BINARY_ATTRIBUTE_DEFINITION";

	public static final String VAR_SECTION_STARLARK_BUILTIN = "SECTION_BUILTIN";

	public static final String TYPICAL_ATTRIBUTES = "typical";
	public static final String COMMON_ATTRIBUTES = "common";
	public static final String TEST_ATTRIBUTES = "test";
	public static final String BINARY_ATTRIBUTES = "binary";

	/**
	* Mark the attribute as deprecated in the Build Encyclopedia.
	*/
	public static final String FLAG_DEPRECATED = "DEPRECATED";
	public static final String FLAG_GENERIC_RULE = "GENERIC_RULE";

	public static final String HEADER_COMMENT = Joiner.on("\n").join(ImmutableList.<String>of(
	"<!DOCTYPE html>",
	"<!--",
	" This document is synchronized with Bazel releases.",
	" To edit, submit changes to the Bazel source code.",
	"-->",
	"",
	"<!-- Generated by //java/com/google/devtools/build/docgen:build-encyclopedia.zip -->"));

	public static final FileTypeSet JAVA_SOURCE_FILE_SUFFIX = FileTypeSet.of(FileType.of(".java"));

	public static final String META_KEY_NAME = "NAME";
	public static final String META_KEY_TYPE = "TYPE";
	public static final String META_KEY_FAMILY = "FAMILY";

	/**
	* For Starlark rules, this type name is equivalent to {@link RuleType#OTHER} with the {@link
	* FLAG_GENERIC_RULE} flag set.
	*
	* <p>Example: "generic_rules.genrule" would be classified as a generic rule of type OTHER.
	*/
	public static final String STARLARK_GENERIC_RULE_TYPE = "GENERIC";

	/** Types a rule can have (Binary, Library, Test or Other). */
	public static enum RuleType {
	BINARY, LIBRARY, TEST, OTHER
	}

	/**
	* Reference to another rule or Build Encyclopedia section.
	*
	* <p>The format of a link reference is rule.attribute (e.g. cc_library.deps). In the case of
	* static pages such as common definitions the format is page.heading
	* (e.g. common-definitions.label-expansion).
	*/
	public static final Pattern BLAZE_RULE_LINK = Pattern.compile(
	"\\$\\{link (([a-zA-Z_-]+)(\\.([a-zA-Z_\\.-]+))?)\\}");

	public static final Pattern BLAZE_RULE_HEADING_LINK =
	Pattern.compile("\\$\\{link (([a-zA-Z_-]+)\\#([a-zA-Z0-9_\\.-]+))\\}");

	/**
	* i.e.
	* <!-- #FAMILY_SUMMARY -->
	*/
	public static final Pattern FAMILY_SUMMARY_START =
	Pattern.compile("([\\s]/\\)?[\\s]\\<!--[\\s]#FAMILY_SUMMARY[\\s]--\\>[\\s]");

	/**
	* i.e.
	* <!-- #END_FAMILY_SUMMARY -->
	*/
	public static final Pattern FAMILY_SUMMARY_END =
	Pattern.compile("[\\s]\\<!--[\\s]#END_FAMILY_SUMMARY[\\s]--\\>[\\s](\\/[\\s])?");

	/**
	* i.e. <!-- #BLAZE_RULE(NAME = RULE_NAME, TYPE = RULE_TYPE, FAMILY = RULE_FAMILY) -->
	* i.e. <!-- #BLAZE_RULE(...)[DEPRECATED] -->
	*/
	public static final Pattern BLAZE_RULE_START = Pattern.compile(
	"^[\\s]/\\[\\s]\\<!\\-\\-[\\s]#BLAZE_RULE[\\s]*\\(([\\w\\s=,+/()-]+)\\)"
	+ "(\\[[\\w,]+\\])?[\\s]*\\-\\-\\>");
	/**
	* i.e. <!-- #END_BLAZE_RULE -->
	*/
	public static final Pattern BLAZE_RULE_END = Pattern.compile(
	"^[\\s]\\<!\\-\\-[\\s]#END_BLAZE_RULE[\\s]\\-\\-\\>[\\s]\\*/");
	/**
	* i.e. <!-- #BLAZE_RULE(RULE_NAME).VARIABLE_NAME -->
	*/
	public static final Pattern BLAZE_RULE_VAR_START = Pattern.compile(
	"^[\\s]/\\[\\s]\\<!\\-\\-[\\s]#BLAZE_RULE\\(([\\w\\$]+)\\)\\.([\\w]+)[\\s]*\\-\\-\\>");
	/**
	* i.e. <!-- #END_BLAZE_RULE.VARIABLE_NAME -->
	*/
	public static final Pattern BLAZE_RULE_VAR_END = Pattern.compile(
	"^[\\s]\\<!\\-\\-[\\s]#END_BLAZE_RULE\\.([\\w]+)[\\s]\\-\\-\\>[\\s]\\*/");
	/**
	* i.e. <!-- #BLAZE_RULE(RULE_NAME).ATTRIBUTE(ATTR_NAME) -->
	* i.e. <!-- #BLAZE_RULE(RULE_NAME).ATTRIBUTE(ATTR_NAME)[DEPRECATED] -->
	*/
	public static final Pattern BLAZE_RULE_ATTR_START = Pattern.compile(
	"^[\\s]/\\[\\s]\\<!\\-\\-[\\s]#BLAZE_RULE\\(([\\w\\$]+)\\)\\."
	+ "ATTRIBUTE\\(([\\w]+)\\)(\\[[\\w,]+\\])?[\\s]*\\-\\-\\>");
	/**
	* i.e. <!-- #END_BLAZE_RULE.ATTRIBUTE -->
	*/
	public static final Pattern BLAZE_RULE_ATTR_END = Pattern.compile(
	"^[\\s]\\<!\\-\\-[\\s]#END_BLAZE_RULE\\.ATTRIBUTE[\\s]\\-\\-\\>[\\s]\\*/");

	/** e.g. "[DEPRECATED]" in <!-- #BLAZE_RULE(...).ATTRIBUTE(...)[DEPRECATED] --> */
	public static final Pattern BLAZE_RULE_FLAGS = Pattern.compile("^.\\[(.)\\].*$");

	/**
	* Example:
	*
	* <pre>
	* """
	* FooLang
	*
	* Note that native FooLang rules are experimental.
	* """
	* </pre>
	*
	* where "FooLang" is the family name and "Note that ..." is the summary.
	*/
	public static final Pattern STARDOC_OUTPUT_FAMILY_NAME_AND_SUMMARY =
	Pattern.compile("^(?<family>[^\n]+)(?:\n\n(?<summary>[^\n].*))?$");

	/**
	* Example: "library_rules.java_import", where "library" is the rule type and "java_import" is the
	* rule name.
	*/
	public static final Pattern STARDOC_OUTPUT_RULE_NAME =
	Pattern.compile("^(?<type>[^.\\s]+)_rules\\.(?<name>[^.\\s]+)$");

	/**
	* Examples:
	*
	* <ul>
	* <li>"Deprecated: Use <code>other_attribute</code> instead."
	* <li>"(File\|str) Deprecated: Use <code>other_field</code> instead."
	* </ul>
	*/
	public static final Pattern STARDOC_OUTPUT_DEPRECATED_DOCSTRING =
	Pattern.compile("^(?:\\(.*\\) )?Deprecated: (?<reason>.+)$");

	public static final ImmutableMap<String, Integer> ATTRIBUTE_ORDERING =
	ImmutableMap.<String, Integer>builder()
	.put("name", -99)
	.put("deps", -98)
	.put("src", -97)
	.put("srcs", -96)
	.put("data", -95)
	.put("resource", -94)
	.put("resources", -93)
	.put("out", -92)
	.put("outs", -91)
	.put("hdrs", -90)
	.buildOrThrow();

	// The following variables are not constants as they can be overridden from
	// StarlarkDocumentationProcessor#parseOptions
	// Their purpose is to allow generated Starlark documentation to link into the build encyclopedia.

	// Root directory of narrative Starlark documentation files such as rules.md
	public static String starlarkDocsRoot = "/rules";

	static String toCommandLineFormat(String cmdDoc) {
	// Replace html <br> tags with line breaks
	cmdDoc = cmdDoc.replaceAll("(<br>\|<br[\\s]*/>)", "\n") + "\n";
	// Replace other links <a href=".*">s with human readable links
	cmdDoc = cmdDoc.replaceAll("\\<a href=\"([^\"]+)\">[^\\<]*\\</a\\>", "$1");
	// Delete other html tags
	cmdDoc = cmdDoc.replaceAll("\\<[/]?[^\\>]+\\>", "");
	// Delete docgen variables
	cmdDoc = cmdDoc.replaceAll("\\$\\{[\\w_]+\\}", "");
	// Substitute more than 2 line breaks in a row with 2 line breaks
	cmdDoc = cmdDoc.replaceAll("[\\n]{2,}", "\n\n");
	// Ensure that the doc starts and ends with exactly two line breaks
	cmdDoc = cmdDoc.replaceAll("^[\\n]+", "\n\n");
	cmdDoc = cmdDoc.replaceAll("[\\n]+$", "\n\n");
	return cmdDoc;
	}

	static String removeDuplicatedNewLines(String doc) {
	return doc.replaceAll("[\\n][\\s]*[\\n]", "\n");
	}
	}