Adobe Dreamweaver CS3 Manual do Utilizador descarregar pdf (Página 311)

100

101

DREAMWEAVER CS3

User Guide

304

See also

“Make pages XHTML-compliant” on page 328

About 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\*.Ifyoudon’tescapetheasterisk,you’llfindalltheoccurrencesof“apply”(aswell

as any of “appl”, “applyy”, and “applyyy”), not just the ones followed by an asterisk.

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</

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.

Character Matches Example

^ Beginning of input or line.

^T matches “T” in “This good earth” but not in “Uncle Tom’s

Cabin”

$ End of input or line. h$ matches “h” in “teach” but not in “teacher”

* The preceding character 0

or more times.

um* matches “um” in “rum”, “umm” in “yummy”, and “u” in

“huge”

+ The preceding character 1

or more times.

um+ matches “um” in “rum” and “umm” in “yummy” but

nothing in “huge”

XHTML requirement Actions Dreamweaver performs

September 4, 2007

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