Option.java revision 953:221a84ef44c0 
1/*
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7 * so, subject to the following conditions:
8 *
9 * The above copyright notice and this permission notice shall be included in all
10 * copies or substantial portions of the Software.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
15 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
16 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
18 * SOFTWARE.
19 */
20package jdk.nashorn.internal.runtime.regexp.joni;
21
22public class Option {
23
24    /* options */
25    public static final int NONE                 = 0;
26    public static final int IGNORECASE           = (1<<0);
27    public static final int EXTEND               = (1<<1);
28    public static final int MULTILINE            = (1<<2);
29    public static final int SINGLELINE           = (1<<3);
30    public static final int FIND_LONGEST         = (1<<4);
31    public static final int FIND_NOT_EMPTY       = (1<<5);
32    public static final int NEGATE_SINGLELINE    = (1<<6);
33    public static final int DONT_CAPTURE_GROUP   = (1<<7);
34    public static final int CAPTURE_GROUP        = (1<<8);
35
36    /* options (search time) */
37    public static final int NOTBOL               = (1<<9);
38    public static final int NOTEOL               = (1<<10);
39    public static final int POSIX_REGION         = (1<<11);
40    public static final int MAXBIT               = (1<<12); /* limit */
41
42    public static final int DEFAULT              = NONE;
43
44    public static String toString(final int option) {
45        String options = "";
46        if (isIgnoreCase(option)) options += "IGNORECASE ";
47        if (isExtend(option)) options += "EXTEND ";
48        if (isMultiline(option)) options += "MULTILINE ";
49        if (isSingleline(option)) options += "SINGLELINE ";
50        if (isFindLongest(option)) options += "FIND_LONGEST ";
51        if (isFindNotEmpty(option)) options += "FIND_NOT_EMPTY  ";
52        if (isNegateSingleline(option)) options += "NEGATE_SINGLELINE ";
53        if (isDontCaptureGroup(option)) options += "DONT_CAPTURE_GROUP ";
54        if (isCaptureGroup(option)) options += "CAPTURE_GROUP ";
55
56        if (isNotBol(option)) options += "NOTBOL ";
57        if (isNotEol(option)) options += "NOTEOL ";
58        if (isPosixRegion(option)) options += "POSIX_REGION ";
59
60        return options;
61    }
62
63    public static boolean isIgnoreCase(final int option) {
64        return (option & IGNORECASE) != 0;
65    }
66
67    public static boolean isExtend(final int option) {
68        return (option & EXTEND) != 0;
69    }
70
71    public static boolean isSingleline(final int option) {
72        return (option & SINGLELINE) != 0;
73    }
74
75    public static boolean isMultiline(final int option) {
76        return (option & MULTILINE) != 0;
77    }
78
79    public static boolean isFindLongest(final int option) {
80        return (option & FIND_LONGEST) != 0;
81    }
82
83    public static boolean isFindNotEmpty(final int option) {
84        return (option & FIND_NOT_EMPTY) != 0;
85    }
86
87    public static boolean isFindCondition(final int option) {
88        return (option & (FIND_LONGEST | FIND_NOT_EMPTY)) != 0;
89    }
90
91    public static boolean isNegateSingleline(final int option) {
92        return (option & NEGATE_SINGLELINE) != 0;
93    }
94
95    public static boolean isDontCaptureGroup(final int option) {
96        return (option & DONT_CAPTURE_GROUP) != 0;
97    }
98
99    public static boolean isCaptureGroup(final int option) {
100        return (option & CAPTURE_GROUP) != 0;
101    }
102
103    public static boolean isNotBol(final int option) {
104        return (option & NOTBOL) != 0;
105    }
106
107    public static boolean isNotEol(final int option) {
108        return (option & NOTEOL) != 0;
109    }
110
111    public static boolean isPosixRegion(final int option) {
112        return (option & POSIX_REGION) != 0;
113    }
114
115    /* OP_SET_OPTION is required for these options.  ??? */
116    //    public static boolean isDynamic(int option) {
117    //        return (option & (MULTILINE | IGNORECASE)) != 0;
118    //    }
119    public static boolean isDynamic(final int option) {
120        return false;
121    }
122}
123