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1   package nom.tam.fits.header;
2   
3   /*
4    * #%L
5    * nom.tam FITS library
6    * %%
7    * Copyright (C) 1996 - 2024 nom-tam-fits
8    * %%
9    * This is free and unencumbered software released into the public domain.
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11   * Anyone is free to copy, modify, publish, use, compile, sell, or
12   * distribute this software, either in source code form or as a compiled
13   * binary, for any purpose, commercial or non-commercial, and by any
14   * means.
15   *
16   * In jurisdictions that recognize copyright laws, the author or authors
17   * of this software dedicate any and all copyright interest in the
18   * software to the public domain. We make this dedication for the benefit
19   * of the public at large and to the detriment of our heirs and
20   * successors. We intend this dedication to be an overt act of
21   * relinquishment in perpetuity of all present and future rights to this
22   * software under copyright law.
23   *
24   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
27   * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
28   * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
29   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
30   * OTHER DEALINGS IN THE SOFTWARE.
31   * #L%
32   */
33  
34  /**
35   * <p>
36   * This data dictionary contains FITS keywords that have been widely used within the astronomical community. It is
37   * recommended that these keywords only be used as defined here. These are the Keywords that denote non-standard FITS
38   * keyword format conventions.
39   * </p>
40   * <p>
41   * See <a href=
42   * "http://heasarc.gsfc.nasa.gov/docs/fcg/common_dict.html">http://heasarc.gsfc.nasa.gov/docs/fcg/common_dict.html</a>
43   * </p>
44   *
45   * @author Richard van Nieuwenhoven
46   */
47  public enum NonStandard implements IFitsHeader {
48      /**
49       * @deprecated The CONTINUE key is now part of the FITS 4.0 standard, so use {@link Standard#CONTINUE} instead.
50       */
51      @Deprecated
52      CONTINUE(SOURCE.HEASARC, HDU.ANY, VALUE.NONE, "denotes the CONTINUE long string keyword convention"),
53  
54      /**
55       * The HIERARCH keyword, when followed by spaces in columns 9 and 10 of the FITS card image, indicates that the ESO
56       * HIERARCH keyword convention should be used to interpret the name and value of the keyword. The HIERARCH keyword
57       * formally has no value because it is not followed by an equals sign in column 9. Under the HIERARCH convention the
58       * actual name of the keyword begins in column 11 of the card image and is terminated by the equal sign ('=')
59       * character. The name can contain any number of characters as long as it fits within columns 11 and 80 of the card
60       * image and also leaves enough space for the equal sign separator and the value field. The name can contain any
61       * printable ASCII text character, including spaces and lower-case characters, except for the equal sign character
62       * which serves as the terminator of the name field. Leading and trailing spaces in the name field are not
63       * significant, but embedded spaces within the name are significant. The value field follows the equals sign and
64       * must conform to the syntax for a free-format value field as defined in the FITS Standard. The value field may be
65       * null, in which case it contains only space characters, otherwise it may contain either a character string
66       * enclosed in single quotes, the logical constant T or F, an integer number, a floating point number, a complex
67       * integer number, or a complex floating point number. The value field may be followed by an optional comment
68       * string. The comment field must be separated from the value field by a slash character ('/'). It is recommended
69       * that the slash character be preceeded and followed by a space character. Example: "HIERARCH Filter Wheel = 12 /
70       * filter position". In this example the logical name of the keyword is 'Filter Wheel' and the value is 12.
71       */
72      HIERARCH(SOURCE.ESO, HDU.ANY, VALUE.NONE, null),
73  
74      /**
75       * The presence of this keyword with a value = T in an extension key indicates that the keywords contained in the
76       * primary key (except the FITS Mandatory keywords, and any COMMENT, HISTORY or 'blank' keywords) are to be
77       * inherited, or logically included in that extension key.
78       * 
79       * @deprecated Part of the FITS standard, use {@link Standard#INHERIT} instead.
80       */
81      INHERIT(SOURCE.STScI, HDU.EXTENSION, VALUE.LOGICAL, "inherit header description of primary HDU");
82  
83      private final FitsKey key;
84  
85      /**
86       * An alternative older value of the XTENSION keword in case of an image.
87       */
88      public static final String XTENSION_IUEIMAGE = "IUEIMAGE";
89  
90      /**
91       * an alternative olde value of the XTENSION keword in case of an earlier version of binary table.
92       */
93      public static final String XTENSION_A3DTABLE = "A3DTABLE";
94  
95      NonStandard(IFitsHeader.SOURCE status, HDU hdu, VALUE valueType, String comment) {
96          key = new FitsKey(name(), status, hdu, valueType, comment);
97      }
98  
99      @Override
100     public final FitsKey impl() {
101         return key;
102     }
103 }