#4051

Committed 08 Feb 2025 09:08AM UTC coverage: 35.297% (-0.01%) from 35.31%

Build # #4051

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/shell/src/main/java/com/aspectran/shell/command/option/DefaultOptionParser.java

/*
 * Copyright (c) 2008-2025 The Aspectran Project
 *
 * 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.aspectran.shell.command.option;

import com.aspectran.utils.annotation.jsr305.NonNull;

import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.Properties;

/**
 * The default command option parser.
 */
public class DefaultOptionParser implements OptionParser {

    /** The parsed options instance. */
    private ParsedOptions parsedOptions;

    /** The current options. */
    private Options options;

    /**
     * Flag indicating how unrecognized tokens are handled. {@code true} to stop
     * the parsing and add the remaining tokens to the args list.
     * {@code false} to throw an exception.
     */
    private boolean skipParsingAtNonOption;

    /** The token currently processed. */
    private String currentToken;

    /** The last option parsed. */
    private Option currentOption;

    /** The required options and groups expected to be found when parsing the command line. */
    private List<Object> expectedOpts;

    /** Flag indicating if partial matching of long options is supported. */
    private final boolean allowPartialMatching;

    /**
     * Creates a new DefaultParser instance with partial matching enabled.
     * <p>By "partial matching" we mean that given the following code:
     * <pre>
     *     {@code
     *     Options options = new Options();
     *     options.addOption(new Option("d", "debug", false, "Turn on debug."));
     *     options.addOption(new Option("e", "extract", false, "Turn on extract."));
     *     options.addOption(new Option("o", "option", true, "Turn on option with argument."));
     *     }
     * </pre></p>
     * with "partial matching" turned on, {@code -de} only matches the
     * {@code "debug"} option. However, with "partial matching" disabled,
     * {@code -de} would enable both {@code debug} as well as
     * {@code extract} options.
     */
    public DefaultOptionParser() {
        this(false);
    }

    /**
     * Create a new DefaultParser instance with the specified partial matching policy.
     * <p>
     * By "partial matching" we mean that given the following code:
     * <pre>
     *     {@code
     *          Options options = new Options();
     *      options.addOption(new Option("d", "debug", false, "Turn on debug."));
     *      options.addOption(new Option("e", "extract", false, "Turn on extract."));
     *      options.addOption(new Option("o", "option", true, "Turn on option with argument."));
     *      }
     * </pre>
     * with "partial matching" turned on, {@code -de} only matches the
     * {@code "debug"} option. However, with "partial matching" disabled,
     * {@code -de} would enable both {@code debug} as well as
     * {@code extract} options.
     * @param allowPartialMatching if partial matching of long options shall be enabled
     */
    public DefaultOptionParser(boolean allowPartialMatching) {
        this.allowPartialMatching = allowPartialMatching;
    }

    public ParsedOptions parse(Options options, String[] args) throws OptionParserException {
        return parse(options, args, null);
    }

    /**
     * Parse the arguments according to the specified options and properties.
     * @param options the specified Options
     * @param args the command line arguments
     * @param properties command line option name-value pairs
     * @return the list of atomic option and value tokens
     * @throws OptionParserException if there are any problems encountered
     *      while parsing the command line tokens
     */
    public ParsedOptions parse(Options options, String[] args, Properties properties)
            throws OptionParserException {
        return parse(options, args, properties, false);
    }

    public ParsedOptions parse(Options options, String[] args, boolean skipParsingAtNonOption)
            throws OptionParserException {
        return parse(options, args, null, skipParsingAtNonOption);
    }

    /**
     * Parse the arguments according to the specified options and properties.
     * @param options the specified Options
     * @param args the command line arguments
     * @param properties command line option name-value pairs
     * @param skipParsingAtNonOption if {@code true} an unrecognized argument stops
     *     the parsing and the remaining arguments are added to the
     *     {@link ParsedOptions}s args list. If {@code false} an unrecognized
     *     argument triggers a ParseException.
     * @return the list of atomic option and value tokens
     * @throws OptionParserException if there are any problems encountered
     *      while parsing the command line tokens
     */
    public ParsedOptions parse(@NonNull Options options, String[] args, Properties properties,
                               boolean skipParsingAtNonOption)
            throws OptionParserException {
        this.options = options;
        this.skipParsingAtNonOption = skipParsingAtNonOption;
        this.currentOption = null;
        this.expectedOpts = new ArrayList<>(options.getRequiredOptions());

        // clear the data from the groups
        for (OptionGroup group : options.getOptionGroups()) {
            group.setSelected(null);
        }

        this.parsedOptions = new ParsedOptions();

        if (args != null) {
            for (String argument : args) {
                handleToken(argument);
            }
        }

        // check the arguments of the last option
        checkRequiredOptionValues();

        // add the default options
        handleProperties(properties);

        checkRequiredOptions();

        return this.parsedOptions;
    }

    /**
     * Sets the values of Options using the values in {@code properties}.
     * @param properties the value properties to be processed
     * @throws OptionParserException if option parsing fails
     */
    private void handleProperties(Properties properties) throws OptionParserException {
        if (properties == null) {
            return;
        }

        for (Enumeration<?> e = properties.propertyNames(); e.hasMoreElements();) {
            String name = e.nextElement().toString();
            Option opt = options.getOption(name);
            if (opt == null) {
                throw new UnrecognizedOptionException("Default option wasn't defined", name);
            }

            // if the option is part of a group, check if another option of the group has been selected
            OptionGroup group = options.getOptionGroup(opt);
            boolean selected = (group != null && group.getSelected() != null);
            if (!parsedOptions.hasOption(name) && !selected) {
                // get the value from the properties
                String value = properties.getProperty(name);
                if (opt.hasValue()) {
                    if (opt.getValues() == null || opt.getValues().length == 0) {
                        opt.addValue(value);
                    }
                } else if (!("yes".equalsIgnoreCase(value)
                        || "true".equalsIgnoreCase(value)
                        || "1".equalsIgnoreCase(value))) {
                    // if the value is not yes, true or 1 then don't add the option to the ParsedOptions
                    continue;
                }
                handleOption(opt);
                currentOption = null;
            }
        }
    }

    /**
     * Handle any command line token.
     * @param token the command line token to handle
     * @throws OptionParserException if option parsing fails
     */
    private void handleToken(String token) throws OptionParserException {
        currentToken = token;
        if (!"--".equals(token)) {
            if (currentOption != null && currentOption.acceptsValue() &&
                    !currentOption.isWithEqualSign() && isArgument(token)) {
                String t = OptionUtils.stripLeadingAndTrailingQuotes(token);
                currentOption.addValue(t);
            } else if (token.startsWith("--")) {
                String t = OptionUtils.stripLeadingHyphens(token);
                handleLongOption(t);
            } else if (token.startsWith("-") && token.length() > 1) {
                String t = OptionUtils.stripLeadingHyphens(token);
                handleShortAndLongOption(t);
            } else {
                handleUnknownToken(token);
            }
        }
        if (currentOption != null && !currentOption.acceptsValue()) {
            currentOption = null;
        }
    }

    /**
     * Handles the following tokens:
     * <pre>
     * --L
     * --L=V
     * --L V
     * --l
     * </pre>
     * @param token the command line token to handle
     * @throws OptionParserException if option parsing fails
     */
    private void handleLongOption(@NonNull String token) throws OptionParserException {
        if (token.indexOf('=') == -1) {
            handleLongOptionWithoutEqual(token);
        } else {
            handleLongOptionWithEqual(token);
        }
    }

    /**
     * Handles the following tokens:
     * <pre>
     * --L
     * -L
     * --l
     * -l
     * </pre>
     * @param token the command line token to handle
     * @throws OptionParserException if option parsing fails
     */
    private void handleLongOptionWithoutEqual(String token) throws OptionParserException {
        List<String> matchingOpts = getMatchingLongOptions(token);
        if (matchingOpts.isEmpty()) {
            handleUnknownToken(currentToken);
        } else if (matchingOpts.size() > 1 && !options.hasLongOption(token)) {
            throw new AmbiguousOptionException(token, matchingOpts);
        } else {
            String key = (options.hasLongOption(token) ? token : matchingOpts.get(0));
            handleOption(options.getOption(key));
        }
    }

    /**
     * Handles the following tokens:
     * <pre>
     * --L=V
     * -L=V
     * --l=V
     * -l=V
     * </pre>
     * @param token the command line token to handle
     * @throws OptionParserException if option parsing fails
     */
    private void handleLongOptionWithEqual(@NonNull String token) throws OptionParserException {
        int pos = token.indexOf('=');
        String name = token.substring(0, pos);
        String value = token.substring(pos + 1);
        List<String> matchingOpts = getMatchingLongOptions(name);
        if (matchingOpts.isEmpty()) {
            handleUnknownToken(currentToken);
        } else if (matchingOpts.size() > 1 && !options.hasLongOption(name)) {
            throw new AmbiguousOptionException(name, matchingOpts);
        } else {
            String key = (options.hasLongOption(name) ? name : matchingOpts.get(0));
            Option option = options.getOption(key);
            if (option.acceptsValue()) {
                handleOption(option);
                currentOption.addValue(value);
                currentOption = null;
            } else {
                handleUnknownToken(currentToken);
            }
        }
    }

    /**
     * Handles the following tokens:
     * <pre>
     * -S
     * -SV
     * -S V
     * -S=V
     * -S1S2
     * -S1S2 V
     * -SV1=V2
     *
     * -L
     * -LV
     * -L V
     * -L=V
     * -l
     * </pre>
     * @param token the command line token to handle
     * @throws OptionParserException if option parsing fails
     */
    private void handleShortAndLongOption(@NonNull String token) throws OptionParserException {
        if (token.length() == 1) {
            // -S
            if (options.hasShortOption(token)) {
                handleOption(options.getOption(token));
            } else {
                handleUnknownToken(currentToken);
            }
            return;
        }
        int pos = token.indexOf('=');
        if (pos == -1) {
            // no equal sign found (-xxx)
            if (options.hasShortOption(token)) {
                handleOption(options.getOption(token));
            } else if (!getMatchingLongOptions(token).isEmpty()) {
                // -L or -l
                handleLongOptionWithoutEqual(token);
            } else {
                // look for a long prefix (-Xmx512m)
                String name = getLongPrefix(token);
                if (name != null) {
                    Option option = options.getOption(name);
                    if (!option.isWithEqualSign() && option.acceptsValue()) {
                        handleOption(options.getOption(name));
                        currentOption.addValue(token.substring(name.length()));
                        currentOption = null;
                        return;
                    }
                }
                handleUnknownToken(currentToken);
            }
        } else {
            // equal sign found (-xxx=yyy)
            String name = token.substring(0, pos);
            String value = token.substring(pos + 1);
            // -S=V
            Option option = options.getOption(name);
            if (option != null && option.acceptsValue()) {
                handleOption(option);
                currentOption.addValue(value);
                currentOption = null;
            } else {
                // -L=V or -l=V
                handleLongOptionWithEqual(token);
            }
        }
    }

    /**
     * Handles an unknown token. If the token starts with a dash an
     * UnrecognizedOptionException is thrown. Otherwise, the token is added
     * to the arguments of the command line. If the skipParsingAtNonOption flag
     * is set, this stops the parsing and the remaining tokens are added
     * as-is in the arguments of the command line.
     * @param token the command line token to handle
     * @throws OptionParserException if option parsing fails
     */
    private void handleUnknownToken(@NonNull String token) throws OptionParserException {
        if (token.startsWith("-") && token.length() > 1 && !skipParsingAtNonOption) {
            throw new UnrecognizedOptionException("Unrecognized option: " + token, token);
        }
        parsedOptions.addArg(token);
    }

    private void handleOption(Option option) throws OptionParserException {
        // check the previous option before handling the next one
        checkRequiredOptionValues();
        try {
            option = option.clone();
        } catch (CloneNotSupportedException e) {
            throw new OptionParserException("A CloneNotSupportedException was thrown: " + e.getMessage() + "; " +
                    "Class " + option.getClass() + " must implement the Cloneable interface");
        }
        updateRequiredOptions(option);
        parsedOptions.addOption(option);
        if (option.hasValue()) {
            currentOption = option;
        } else {
            currentOption = null;
        }
    }

    /**
     * Removes the option or its group from the list of expected elements.
     */
    private void updateRequiredOptions(@NonNull Option option) throws AlreadySelectedException {
        if (option.isRequired()) {
            expectedOpts.remove(option.getKey());
        }
        // if the option is in an OptionGroup make that option the selected option of the group
        if (options.getOptionGroup(option) != null) {
            OptionGroup group = options.getOptionGroup(option);
            if (group.isRequired()) {
                expectedOpts.remove(group);
            }
            group.setSelected(option);
        }
    }

    /**
     * Throws a {@link MissingOptionException} if all required options are not present.
     * @throws MissingOptionException if any of the required Options are not present
     */
    private void checkRequiredOptions() throws MissingOptionException {
        // if there are required options that have not been processed
        if (!expectedOpts.isEmpty()) {
            throw new MissingOptionException(expectedOpts);
        }
    }

    /**
     * Throw a {@link MissingOptionValueException} if the current option
     * didn't receive the number of values expected.
     */
    private void checkRequiredOptionValues() throws OptionParserException {
        if (currentOption != null && currentOption.requiresValue()) {
            throw new MissingOptionValueException(currentOption);
        }
    }

    /**
     * Returns true is the token is a valid argument.
     * @param token the command line token to handle
     * @return true if the token is a valid argument
     */
    private boolean isArgument(String token) {
        return (!isOption(token) || isNegativeNumber(token));
    }

    /**
     * Check if the token is a negative number.
     * @param token the command line token to handle
     * @return true if the token is a negative number
     */
    private boolean isNegativeNumber(String token) {
        try {
            Double.parseDouble(token);
            return true;
        } catch (NumberFormatException e) {
            return false;
        }
    }

    /**
     * Tells if the token looks like an option.
     * @param token the command line token to handle
     * @return true if the token looks like an option
     */
    private boolean isOption(String token) {
        return (isLongOption(token) || isShortOption(token));
    }

    /**
     * Tells if the token looks like a short option.
     * @param token the command line token to handle
     * @return true if the token like a short option
     */
    private boolean isShortOption(@NonNull String token) {
        // short options (-S, -SV, -S=V, -SV1=V2, -S1S2)
        if (!token.startsWith("-") || token.length() == 1) {
            return false;
        }
        // remove leading "-" and "=value"
        int pos = token.indexOf("=");
        String name = (pos == -1 ? token.substring(1) : token.substring(1, pos));
        if (options.hasShortOption(name)) {
            return true;
        }
        // check for several concatenated short options
        return (!name.isEmpty() && options.hasShortOption(String.valueOf(name.charAt(0))));
    }

    /**
     * Tells if the token looks like a long option.
     * @param token the command line token to handle
     * @return true if the token like a long option
     */
    private boolean isLongOption(@NonNull String token) {
        if (!token.startsWith("-") || token.length() == 1) {
            return false;
        }
        int pos = token.indexOf("=");
        String t = (pos == -1 ? token : token.substring(0, pos));
        if (!getMatchingLongOptions(t).isEmpty()) {
            // long or partial long options (--L, -L, --L=V, -L=V, --l, --l=V)
            return true;
        }
        if (getLongPrefix(token) != null && !token.startsWith("--")) {
            // -LV
            return true;
        }
        return false;
    }

    /**
     * Returns a list of matching option strings for the given token, depending
     * on the selected partial matching policy.
     * @param token the token (may contain leading dashes)
     * @return the list of matching option strings or an empty list if no
     *      matching option could be found
     */
    private List<String> getMatchingLongOptions(String token) {
        if (allowPartialMatching) {
            return options.getMatchingOptions(token);
        } else {
            List<String> matches = new ArrayList<>(1);
            if (options.hasLongOption(token)) {
                Option option = options.getOption(token);
                matches.add(option.getLongName());
            }
            return matches;
        }
    }

    /**
     * Search for a prefix that is the long name of an option (-Xmx512m).
     * @param token the command line token to handle
     */
    private String getLongPrefix(@NonNull String token) {
        String name = null;
        for (int i = token.length() - 2; i > 1; i--) {
            String prefix = token.substring(0, i);
            if (options.hasLongOption(prefix)) {
                name = prefix;
                break;
            }
        }
        return name;
    }

}

1	/*
2	* Copyright (c) 2008-2025 The Aspectran Project
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package com.aspectran.shell.command.option;
17
18	import com.aspectran.utils.annotation.jsr305.NonNull;
19
20	import java.util.ArrayList;
21	import java.util.Enumeration;
22	import java.util.List;
23	import java.util.Properties;
24
25	/**
26	* The default command option parser.
27	*/
28	public class DefaultOptionParser implements OptionParser {
29
30	/** The parsed options instance. */
31	private ParsedOptions parsedOptions;
32
33	/** The current options. */
34	private Options options;
35
36	/**
37	* Flag indicating how unrecognized tokens are handled. {@code true} to stop
38	* the parsing and add the remaining tokens to the args list.
39	* {@code false} to throw an exception.
40	*/
41	private boolean skipParsingAtNonOption;
42
43	/** The token currently processed. */
44	private String currentToken;
45
46	/** The last option parsed. */
47	private Option currentOption;
48
49	/** The required options and groups expected to be found when parsing the command line. */
50	private List<Object> expectedOpts;
51
52	/** Flag indicating if partial matching of long options is supported. */
53	private final boolean allowPartialMatching;
54
55	/**
56	* Creates a new DefaultParser instance with partial matching enabled.
57	* <p>By "partial matching" we mean that given the following code:
58	* <pre>
59	* {@code
60	* Options options = new Options();
61	* options.addOption(new Option("d", "debug", false, "Turn on debug."));
62	* options.addOption(new Option("e", "extract", false, "Turn on extract."));
63	* options.addOption(new Option("o", "option", true, "Turn on option with argument."));
64	* }
65	* </pre></p>
66	* with "partial matching" turned on, {@code -de} only matches the
67	* {@code "debug"} option. However, with "partial matching" disabled,
68	* {@code -de} would enable both {@code debug} as well as
69	* {@code extract} options.
70	*/
71	public DefaultOptionParser() {
72	this(false);	1✔
73	}	1✔
74
75	/**
76	* Create a new DefaultParser instance with the specified partial matching policy.
77	* <p>
78	* By "partial matching" we mean that given the following code:
79	* <pre>
80	* {@code
81	* Options options = new Options();
82	* options.addOption(new Option("d", "debug", false, "Turn on debug."));
83	* options.addOption(new Option("e", "extract", false, "Turn on extract."));
84	* options.addOption(new Option("o", "option", true, "Turn on option with argument."));
85	* }
86	* </pre>
87	* with "partial matching" turned on, {@code -de} only matches the
88	* {@code "debug"} option. However, with "partial matching" disabled,
89	* {@code -de} would enable both {@code debug} as well as
90	* {@code extract} options.
91	* @param allowPartialMatching if partial matching of long options shall be enabled
92	*/
93	public DefaultOptionParser(boolean allowPartialMatching) {	1✔
94	this.allowPartialMatching = allowPartialMatching;	1✔
95	}	1✔
96
97	public ParsedOptions parse(Options options, String[] args) throws OptionParserException {
98	return parse(options, args, null);	1✔
99	}
100
101	/**
102	* Parse the arguments according to the specified options and properties.
103	* @param options the specified Options
104	* @param args the command line arguments
105	* @param properties command line option name-value pairs
106	* @return the list of atomic option and value tokens
107	* @throws OptionParserException if there are any problems encountered
108	* while parsing the command line tokens
109	*/
110	public ParsedOptions parse(Options options, String[] args, Properties properties)
111	throws OptionParserException {
112	return parse(options, args, properties, false);	1✔
113	}
114
115	public ParsedOptions parse(Options options, String[] args, boolean skipParsingAtNonOption)
116	throws OptionParserException {
117	return parse(options, args, null, skipParsingAtNonOption);	1✔
118	}
119
120	/**
121	* Parse the arguments according to the specified options and properties.
122	* @param options the specified Options
123	* @param args the command line arguments
124	* @param properties command line option name-value pairs
125	* @param skipParsingAtNonOption if {@code true} an unrecognized argument stops
126	* the parsing and the remaining arguments are added to the
127	* {@link ParsedOptions}s args list. If {@code false} an unrecognized
128	* argument triggers a ParseException.
129	* @return the list of atomic option and value tokens
130	* @throws OptionParserException if there are any problems encountered
131	* while parsing the command line tokens
132	*/
133	public ParsedOptions parse(@NonNull Options options, String[] args, Properties properties,
134	boolean skipParsingAtNonOption)
135	throws OptionParserException {
136	this.options = options;	1✔
137	this.skipParsingAtNonOption = skipParsingAtNonOption;	1✔
138	this.currentOption = null;	1✔
139	this.expectedOpts = new ArrayList<>(options.getRequiredOptions());	1✔
140
141	// clear the data from the groups
142	for (OptionGroup group : options.getOptionGroups()) {	1✔
143	group.setSelected(null);	1✔
144	}	1✔
145
146	this.parsedOptions = new ParsedOptions();	1✔
147
148	if (args != null) {	1✔
149	for (String argument : args) {	1✔
150	handleToken(argument);	1✔
151	}
152	}
153
154	// check the arguments of the last option
155	checkRequiredOptionValues();	1✔
156
157	// add the default options
158	handleProperties(properties);	1✔
159
160	checkRequiredOptions();	1✔
161
162	return this.parsedOptions;	1✔
163	}
164
165	/**
166	* Sets the values of Options using the values in {@code properties}.
167	* @param properties the value properties to be processed
168	* @throws OptionParserException if option parsing fails
169	*/
170	private void handleProperties(Properties properties) throws OptionParserException {
171	if (properties == null) {	1✔
172	return;	1✔
173	}
174
175	for (Enumeration<?> e = properties.propertyNames(); e.hasMoreElements();) {	×
176	String name = e.nextElement().toString();	×
177	Option opt = options.getOption(name);	×
178	if (opt == null) {	×
179	throw new UnrecognizedOptionException("Default option wasn't defined", name);	×
180	}
181
182	// if the option is part of a group, check if another option of the group has been selected
183	OptionGroup group = options.getOptionGroup(opt);	×
184	boolean selected = (group != null && group.getSelected() != null);	×
185	if (!parsedOptions.hasOption(name) && !selected) {	×
186	// get the value from the properties
187	String value = properties.getProperty(name);	×
188	if (opt.hasValue()) {	×
189	if (opt.getValues() == null \|\| opt.getValues().length == 0) {	×
190	opt.addValue(value);	×
191	}
192	} else if (!("yes".equalsIgnoreCase(value)	×
193	\|\| "true".equalsIgnoreCase(value)	×
194	\|\| "1".equalsIgnoreCase(value))) {	×
195	// if the value is not yes, true or 1 then don't add the option to the ParsedOptions
196	continue;	×
197	}
198	handleOption(opt);	×
199	currentOption = null;	×
200	}
201	}	×
202	}	×
203
204	/**
205	* Handle any command line token.
206	* @param token the command line token to handle
207	* @throws OptionParserException if option parsing fails
208	*/
209	private void handleToken(String token) throws OptionParserException {
210	currentToken = token;	1✔
211	if (!"--".equals(token)) {	1✔
212	if (currentOption != null && currentOption.acceptsValue() &&	1✔
213	!currentOption.isWithEqualSign() && isArgument(token)) {	1✔
214	String t = OptionUtils.stripLeadingAndTrailingQuotes(token);	1✔
215	currentOption.addValue(t);	1✔
216	} else if (token.startsWith("--")) {	1✔
217	String t = OptionUtils.stripLeadingHyphens(token);	1✔
218	handleLongOption(t);	1✔
219	} else if (token.startsWith("-") && token.length() > 1) {	1✔
220	String t = OptionUtils.stripLeadingHyphens(token);	1✔
221	handleShortAndLongOption(t);	1✔
222	} else {	1✔
223	handleUnknownToken(token);	1✔
224	}
225	}
226	if (currentOption != null && !currentOption.acceptsValue()) {	1✔
227	currentOption = null;	×
228	}
229	}	1✔
230
231	/**
232	* Handles the following tokens:
233	* <pre>
234	* --L
235	* --L=V
236	* --L V
237	* --l
238	* </pre>
239	* @param token the command line token to handle
240	* @throws OptionParserException if option parsing fails
241	*/
242	private void handleLongOption(@NonNull String token) throws OptionParserException {
243	if (token.indexOf('=') == -1) {	1✔
244	handleLongOptionWithoutEqual(token);	1✔
245	} else {
246	handleLongOptionWithEqual(token);	1✔
247	}
248	}	1✔
249
250	/**
251	* Handles the following tokens:
252	* <pre>
253	* --L
254	* -L
255	* --l
256	* -l
257	* </pre>
258	* @param token the command line token to handle
259	* @throws OptionParserException if option parsing fails
260	*/
261	private void handleLongOptionWithoutEqual(String token) throws OptionParserException {
262	List<String> matchingOpts = getMatchingLongOptions(token);	1✔
263	if (matchingOpts.isEmpty()) {	1✔
264	handleUnknownToken(currentToken);	×
265	} else if (matchingOpts.size() > 1 && !options.hasLongOption(token)) {	1✔
266	throw new AmbiguousOptionException(token, matchingOpts);	×
267	} else {
268	String key = (options.hasLongOption(token) ? token : matchingOpts.get(0));	1✔
269	handleOption(options.getOption(key));	1✔
270	}
271	}	1✔
272
273	/**
274	* Handles the following tokens:
275	* <pre>
276	* --L=V
277	* -L=V
278	* --l=V
279	* -l=V
280	* </pre>
281	* @param token the command line token to handle
282	* @throws OptionParserException if option parsing fails
283	*/
284	private void handleLongOptionWithEqual(@NonNull String token) throws OptionParserException {
285	int pos = token.indexOf('=');	1✔
286	String name = token.substring(0, pos);	1✔
287	String value = token.substring(pos + 1);	1✔
288	List<String> matchingOpts = getMatchingLongOptions(name);	1✔
289	if (matchingOpts.isEmpty()) {	1✔
290	handleUnknownToken(currentToken);	×
291	} else if (matchingOpts.size() > 1 && !options.hasLongOption(name)) {	1✔
292	throw new AmbiguousOptionException(name, matchingOpts);	×
293	} else {
294	String key = (options.hasLongOption(name) ? name : matchingOpts.get(0));	1✔
295	Option option = options.getOption(key);	1✔
296	if (option.acceptsValue()) {	1✔
297	handleOption(option);	1✔
298	currentOption.addValue(value);	1✔
299	currentOption = null;	1✔
300	} else {
301	handleUnknownToken(currentToken);	×
302	}
303	}
304	}	1✔
305
306	/**
307	* Handles the following tokens:
308	* <pre>
309	* -S
310	* -SV
311	* -S V
312	* -S=V
313	* -S1S2
314	* -S1S2 V
315	* -SV1=V2
316	*
317	* -L
318	* -LV
319	* -L V
320	* -L=V
321	* -l
322	* </pre>
323	* @param token the command line token to handle
324	* @throws OptionParserException if option parsing fails
325	*/
326	private void handleShortAndLongOption(@NonNull String token) throws OptionParserException {
327	if (token.length() == 1) {	1✔
328	// -S
329	if (options.hasShortOption(token)) {	1✔
330	handleOption(options.getOption(token));	1✔
331	} else {
332	handleUnknownToken(currentToken);	×
333	}
334	return;	1✔
335	}
336	int pos = token.indexOf('=');	1✔
337	if (pos == -1) {	1✔
338	// no equal sign found (-xxx)
339	if (options.hasShortOption(token)) {	1✔
340	handleOption(options.getOption(token));	1✔
341	} else if (!getMatchingLongOptions(token).isEmpty()) {	1✔
342	// -L or -l
343	handleLongOptionWithoutEqual(token);	1✔
344	} else {
345	// look for a long prefix (-Xmx512m)
346	String name = getLongPrefix(token);	×
347	if (name != null) {	×
348	Option option = options.getOption(name);	×
349	if (!option.isWithEqualSign() && option.acceptsValue()) {	×
350	handleOption(options.getOption(name));	×
351	currentOption.addValue(token.substring(name.length()));	×
352	currentOption = null;	×
353	return;	×
354	}
355	}
356	handleUnknownToken(currentToken);	×
357	}	×
358	} else {
359	// equal sign found (-xxx=yyy)
360	String name = token.substring(0, pos);	1✔
361	String value = token.substring(pos + 1);	1✔
362	// -S=V
363	Option option = options.getOption(name);	1✔
364	if (option != null && option.acceptsValue()) {	1✔
365	handleOption(option);	1✔
366	currentOption.addValue(value);	1✔
367	currentOption = null;	1✔
368	} else {
369	// -L=V or -l=V
370	handleLongOptionWithEqual(token);	×
371	}
372	}
373	}	1✔
374
375	/**
376	* Handles an unknown token. If the token starts with a dash an
377	* UnrecognizedOptionException is thrown. Otherwise, the token is added
378	* to the arguments of the command line. If the skipParsingAtNonOption flag
379	* is set, this stops the parsing and the remaining tokens are added
380	* as-is in the arguments of the command line.
381	* @param token the command line token to handle
382	* @throws OptionParserException if option parsing fails
383	*/
384	private void handleUnknownToken(@NonNull String token) throws OptionParserException {
385	if (token.startsWith("-") && token.length() > 1 && !skipParsingAtNonOption) {	1✔
386	throw new UnrecognizedOptionException("Unrecognized option: " + token, token);	×
387	}
388	parsedOptions.addArg(token);	1✔
389	}	1✔
390
391	private void handleOption(Option option) throws OptionParserException {
392	// check the previous option before handling the next one
393	checkRequiredOptionValues();	1✔
394	try {
395	option = option.clone();	1✔
396	} catch (CloneNotSupportedException e) {	×
397	throw new OptionParserException("A CloneNotSupportedException was thrown: " + e.getMessage() + "; " +	×
398	"Class " + option.getClass() + " must implement the Cloneable interface");	×
399	}	1✔
400	updateRequiredOptions(option);	1✔
401	parsedOptions.addOption(option);	1✔
402	if (option.hasValue()) {	1✔
403	currentOption = option;	1✔
404	} else {
405	currentOption = null;	1✔
406	}
407	}	1✔
408
409	/**
410	* Removes the option or its group from the list of expected elements.
411	*/
412	private void updateRequiredOptions(@NonNull Option option) throws AlreadySelectedException {
413	if (option.isRequired()) {	1✔
414	expectedOpts.remove(option.getKey());	1✔
415	}
416	// if the option is in an OptionGroup make that option the selected option of the group
417	if (options.getOptionGroup(option) != null) {	1✔
418	OptionGroup group = options.getOptionGroup(option);	1✔
419	if (group.isRequired()) {	1✔
420	expectedOpts.remove(group);	×
421	}
422	group.setSelected(option);	1✔
423	}
424	}	1✔
425
426	/**
427	* Throws a {@link MissingOptionException} if all required options are not present.
428	* @throws MissingOptionException if any of the required Options are not present
429	*/
430	private void checkRequiredOptions() throws MissingOptionException {
431	// if there are required options that have not been processed
432	if (!expectedOpts.isEmpty()) {	1✔
433	throw new MissingOptionException(expectedOpts);	×
434	}
435	}	1✔
436
437	/**
438	* Throw a {@link MissingOptionValueException} if the current option
439	* didn't receive the number of values expected.
440	*/
441	private void checkRequiredOptionValues() throws OptionParserException {
442	if (currentOption != null && currentOption.requiresValue()) {	1✔
443	throw new MissingOptionValueException(currentOption);	×
444	}
445	}	1✔
446
447	/**
448	* Returns true is the token is a valid argument.
449	* @param token the command line token to handle
450	* @return true if the token is a valid argument
451	*/
452	private boolean isArgument(String token) {
453	return (!isOption(token) \|\| isNegativeNumber(token));	1✔
454	}
455
456	/**
457	* Check if the token is a negative number.
458	* @param token the command line token to handle
459	* @return true if the token is a negative number
460	*/
461	private boolean isNegativeNumber(String token) {
462	try {
463	Double.parseDouble(token);	×
464	return true;	×
465	} catch (NumberFormatException e) {	1✔
466	return false;	1✔
467	}
468	}
469
470	/**
471	* Tells if the token looks like an option.
472	* @param token the command line token to handle
473	* @return true if the token looks like an option
474	*/
475	private boolean isOption(String token) {
476	return (isLongOption(token) \|\| isShortOption(token));	1✔
477	}
478
479	/**
480	* Tells if the token looks like a short option.
481	* @param token the command line token to handle
482	* @return true if the token like a short option
483	*/
484	private boolean isShortOption(@NonNull String token) {
485	// short options (-S, -SV, -S=V, -SV1=V2, -S1S2)
486	if (!token.startsWith("-") \|\| token.length() == 1) {	1✔
487	return false;	1✔
488	}
489	// remove leading "-" and "=value"
490	int pos = token.indexOf("=");	1✔
491	String name = (pos == -1 ? token.substring(1) : token.substring(1, pos));	1✔
492	if (options.hasShortOption(name)) {	1✔
493	return true;	1✔
494	}
495	// check for several concatenated short options
496	return (!name.isEmpty() && options.hasShortOption(String.valueOf(name.charAt(0))));	×
497	}
498
499	/**
500	* Tells if the token looks like a long option.
501	* @param token the command line token to handle
502	* @return true if the token like a long option
503	*/
504	private boolean isLongOption(@NonNull String token) {
505	if (!token.startsWith("-") \|\| token.length() == 1) {	1✔
506	return false;	1✔
507	}
508	int pos = token.indexOf("=");	1✔
509	String t = (pos == -1 ? token : token.substring(0, pos));	1✔
510	if (!getMatchingLongOptions(t).isEmpty()) {	1✔
511	// long or partial long options (--L, -L, --L=V, -L=V, --l, --l=V)
512	return true;	×
513	}
514	if (getLongPrefix(token) != null && !token.startsWith("--")) {	1✔
515	// -LV
516	return true;	×
517	}
518	return false;	1✔
519	}
520
521	/**
522	* Returns a list of matching option strings for the given token, depending
523	* on the selected partial matching policy.
524	* @param token the token (may contain leading dashes)
525	* @return the list of matching option strings or an empty list if no
526	* matching option could be found
527	*/
528	private List<String> getMatchingLongOptions(String token) {
529	if (allowPartialMatching) {	1✔
530	return options.getMatchingOptions(token);	×
531	} else {
532	List<String> matches = new ArrayList<>(1);	1✔
533	if (options.hasLongOption(token)) {	1✔
534	Option option = options.getOption(token);	1✔
535	matches.add(option.getLongName());	1✔
536	}
537	return matches;	1✔
538	}
539	}
540
541	/**
542	* Search for a prefix that is the long name of an option (-Xmx512m).
543	* @param token the command line token to handle
544	*/
545	private String getLongPrefix(@NonNull String token) {
546	String name = null;	1✔
547	for (int i = token.length() - 2; i > 1; i--) {	1✔
548	String prefix = token.substring(0, i);	×
549	if (options.hasLongOption(prefix)) {	×
550	name = prefix;	×
551	break;	×
552	}
553	}
554	return name;	1✔
555	}
556
557	}

aspectran / aspectran / #4051

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