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User Groups : Forums : SiteExperts : HTML and CSS
:  |  Using HTML or cgi to do a "ctrl-F"
I want to do a CTRL + F on a web page.
moreover I want to make a "search this page" button on a web page.
any help would be great.
Gundy
Started By Gundy on Sep 13, 2005 at 8:41:32 AM | | | 7 Response(s) | Reply |
| View All Replies | Goto Page: 1 | | hedger on Sep 14, 2005 at 7:47:09 PM
Searches for text in the document and positions the start and end points of the range to encompass the search string.
Syntax
bFound = TextRange.findText(sText [, iSearchScope] [, iFlags])
Parameters
| sText |
Required. String that specifies the text to find. |
| iSearchScope |
Optional. Integer that specifies the number of characters to search from the starting point of the range. A positive integer indicates a forward search; a negative integer indicates a backward search. |
| iFlags |
Optional. Integer that specifies one or more of the following flags to indicate the type of search:
| 0 |
Default. Match partial words. |
| 1 |
Match backwards. |
| 2 |
Match whole words only. |
| 4 |
Match case. |
| 131072 |
Match bytes. |
| 536870912 |
Match diacritical marks. |
| 1073741824 |
Match Kashida character. |
| 2147483648 |
Match AlefHamza character. | |
Return Value
Boolean that returns one of the following values:
| true |
The search text was found. |
| false |
The search text was not found. |
Remarks
A range has two distinct states: degenerate and nondegenerate.
A degenerate range is like a text editor caret (insertion point) ˇXit does not actually select any characters. Instead, it specifies a point between two characters. The end points of a degenerate range are adjacent.
A nondegenerate range is like a text editor selection, in that it selects a certain amount of text. The end points of a nondegenerate range are not adjacent.
The value passed for the iSearchScope parameter controls the part of the document, relative to the range, that is searched. The behavior of the findText method depends on whether the state is degenerate or nondegenerate:
- If the range is degenerate, passing a large positive number causes the text to the right of the range to be searched. Passing a large negative number causes the text to the left of the range to be searched.
- If the range is nondegenerate, passing a large positive number causes the text to the right of the start of the range to be searched. Passing a large negative number causes the text to the left of the end of the range to be searched. Passing 0 causes only the text selected by the range to be searched.
This feature might not be available on non-Microsoft Win32 platforms.
A text range is not modified if the text specified for the findText method is not found.
Example
This example creates a TextRange over the body of the document, and then uses the findText method to search for text with various flag combinations. The results are indicated in the example code comments.
Show Example <HTML>
<BODY>
Leonardo da Vinci was one of the great masters of the High
Renaissance, especially in painting, sculpture, architecture,
engineering, and science.
</BODY>
</HTML>
<SCRIPT>
var oRange = document.body.createTextRange();
// record the current position in a bookmark
var sBookMark = oRange.getBookmark();
// true - case-insensitive and partial word match
oRange.findText('leo');
// reset the range using the bookmark
oRange.moveToBookmark(sBookMark);
// false - matches whole words only
oRange.findText('engineer', 0, 2);
oRange.moveToBookmark(sBookMark);
// false - case-sensitive
oRange.findText('high', 0, 4);
oRange.moveToBookmark(sBookMark);
// true - case-sensitive and matches whole words
oRange.findText('Leonardo', 0, 6);
// the degenerate case
oRange.moveToBookmark(sBookMark);
// make the range degenerate
oRange.collapse();
// false - must specify large character count in this case
oRange.findText('Leonardo', 0, 6);
// true - no third parameter passed, so no count needed
oRange.findText('Leonardo');
// true - a large count covers the range
oRange.findText('Leonardo', 1000000000, 6);
</SCRIPT>
Standards Information
There is no public standard that applies to this method.
Applies To
| [ Object Name ] |
| Platform |
Version |
| Win16: |
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| Win32: |
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| Windows CE: |
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| Unix: |
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| Mac: |
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| Version data is listed when the mouse hovers over a link, or the link has focus. | |
TextRange |
| Move the mouse pointer over an element in the Applies To list to display availability information for the listed platforms. |
| | View All Replies | Goto Page: 1 |
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