|
|
|
| |
|
“Scale” element to be empty with a “length“ attribute of type CDATA . If no length is
specified, it has a default value of 0.
Valid XML:
REQUIRED Syntax
<!ATTLIST element-name attribute_name
attribute-type #REQUIRED> |
DTD Example
<!ATTLIST person number CDATA
#REQUIRED>
Valid XML:
<person id=”5677" />
Invalid XML:
<person /> |
Use the #REQUIRED keyword if you don’t
have an option for a default value, but still
want to force the attribute to be present.
IMPLIED Syntax
<!ATTLIST element-name attribute-name
attribute-type #IMPLIED> |
DTD Example
<!ATTLIST emergency no. CDATA #IMPLIED>
Valid XML: |
|
|
emergency no.=”555-667788" />
Valid XML:
<emergency/> |
Use the #IMPLIED keyword if you don’t want
to force the author to include an attribute,
and you don’t have an option for a default
value.
FIXED Syntax
<!ATTLIST element-name attribute-name
attribute-type #FIXED “value”> |
DTD Example
<!ATTLIST Client CDATA #FIXED
“RoseIndia”>
Valid XML:
<Client =”RoseIndia” />
Invalid XML:
<Client=”LotusIndia” /> |
Use the #FIXED keyword when you want an
attribute to have a fixed value without
allowing the author to change it. If an author
includes another value, the XML parser will
return an error.
Enumerated Attribute Values
Syntax
<!ATTLIST element-name attribute-name
(en1|en2|..) default-value> |
|
|
Jan
2008 | Java Jazz Up |34 |
| |
|
| |
| View All Topics |
| All Pages of this Issue |
Pages:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35,
36,
37,
38,
39,
40,
41,
42,
43,
44,
45,
46,
47,
48,
49,
50,
51,
52,
53 ,
54,
55,
56,
57,
58,
59,
60,
61,
62,
63 ,
64,
65 ,
66 ,
67 ,
68 ,
69 ,
70 ,
71 ,
72 ,
73 ,
74 ,
75 ,
76 ,
77 ,
78 ,
79 ,
80 ,
81 ,
82 ,
83,
84 ,
85 ,
86,
87 ,
88,
89 ,
90 ,
91 ,
92 ,
93 ,
94 ,
95 ,
96 ,
97 ,
98 ,
99 ,
100 ,
101 ,
102 ,
103,
104 ,
105 ,
106,
107,
Download PDF |
|
|
|
|
|
|
| |
| |
|
