Operation Manual

278
USING DREAMWEAVER
Working with page code
Last updated 3/28/2012
Regular expressions
Regular expressions are patterns that describe character combinations in text. Use them in your code searches to help
describe concepts such as lines that begin with “var” and attribute values that contain a number.
The following table lists the special characters in regular expressions, their meanings, and usage examples. To search
for text containing one of the special characters in the table, escape the special character by preceding it with a
backslash. For example, to search for the actual asterisk in the phrase
some conditions apply*, your search pattern
might look like this: apply\*. If you don’t escape the asterisk, you’ll find all the occurrences of “apply” (as well as any
of “appl”, “applyy”, and “applyyy”), not just the ones followed by an asterisk.
All element and attribute names must be lowercase. Forces HTML element and attribute names to be lowercase in the
XHTML code that it generates and when cleaning up XHTML,
regardless of your tag and attribute case preferences.
Every element must have a closing tag, unless it is declared in the DTD
as EMPTY.
Inserts closing tags in the code that it generates, and when cleaning
up XHTML.
Empty elements must have a closing tag, or the opening tag must end
with
/>. For example, <br> is not valid; the correct form is
<br></br> or <br/>. Following are the empty elements: area,
base, basefont, br, col, frame, hr, img, input, isindex, link,
meta, and param.
And for backwards-compatibility with browsers that are not XML-
enabled, there must be a space before the
/> (for example, <br />,
not
<br/>).
Inserts empty elements with a space before the closing slash in empty
tags in the code that it generates, and when cleaning up XHTML.
Attributes can’t be minimized; for example, <td nowrap> is not
valid; the correct form is
<td nowrap="nowrap">.
This affects the following attributes: checked, compact, declare,
defer, disabled, ismap, multiple, noresize, noshade,
nowrap, readonly, and selected.
Inserts full attribute-value pairs in the code that it generates, and
when cleaning up XHTML.
Note: If an HTML browser does not support HTML 4, it might fail to
interpret these Boolean attributes when they appear in their full form.
All attribute values must be surrounded by quotation marks. Places quotation marks around attribute values in the code that it
generates, and when cleaning up XHTML.
The following elements must have an id attribute as well as a name
attribute:
a, applet, form, frame, iframe, img, and map. For
example,
<a name="intro">Introduction</a> is not valid; the
correct form is
<a id="intro">Introduction</a> or <a id="section1"
name="intro"> Introduction</a>.
Sets the name and id attributes to the same value, whenever the
name attribute is set by a Property inspector, in the code that
Dreamweaver generates, and when cleaning up XHTML.
For attributes with values of an enumerated type, the values must be
lowercase.
An enumerated type value is a value from a specified list of allowed
values; for example, the
align attribute has the following allowed
values:
center, justify, left, and right.
Forces enumerated type values to be lowercase in the code that it
generates, and when cleaning up XHTML.
All script and style elements must have a type attribute.
(The type attribute of the script element has been required since
HTML 4, when the
language attribute was deprecated.)
Sets the type and language attributes in script elements, and the
type attribute in style elements, in the code that it generates and
when cleaning up XHTML.
All img and area elements must have an alt attribute. Sets these attributes in the code that it generates and, when cleaning
up XHTML, reports missing
alt attributes.
XHTML requirement Actions Dreamweaver performs