Whitespace

PmWiki 2.1.12 makes the CSS property called "white-space" available as a WikiStyle.

Depending on browsers and versions of CSS, the following values may be available as "=arguments"

white-space=normal (default)
white-space=pre
- Preformatted: like html <pre> element; no line-wrapping; all spaces, carriage returns, and linefeeds are displayed "as-is" from the source.
white-space=pre-wrap
- Same as pre, except line-wrapping is restored; tabs displayed
- Introduced in CSS 2.1
white-space=-moz-pre-wrap
- Same as pre, except line-wrapping is restored; tabs displayed
white-space=-o-pre-wrap
- Same as pre, except line-wrapping is restored; tabs displayed as glyph
white-space=nowrap
- Multiple carriage returns and multiple spaces collapsed to a single space

Now to test each of these on PmWiki using the following text:

Line 1 is short.
Line 2 has a 	tab and extra   spaces    between     words.
Line 3 is a very long line that continue with text because it is a very long line that continue with text because it is a very long line that continue with text because it is a very long line that continue with text because it is a very long line.

Line 5 is preceded by two carriage returns (there is no text on line 4)


Line 8  is preceded by three carriage returns (there is no text on lines 6 and 7)

`>>white-space=normal<<`

Line 1 is short. Line 2 has a tab and extra spaces between words. Line 3 is a very long line that continue with text because it is a very long line that continue with text because it is a very long line that continue with text because it is a very long line that continue with text because it is a very long line.

Line 5 is preceded by two carriage returns (there is no text on line 4)

Line 8 is preceded by three carriage returns (there is no text on lines 6 and 7)

`>>white-space=pre<<`

Line 1 is short.
Line 2 has a 	tab and extra   spaces    between     words.
Line 3 is a very long line that continue with text because it is a very long line that continue with text because it is a very long line that continue with text because it is a very long line that continue with text because it is a very long line.
Line 5 is preceded by two carriage returns (there is no text on line 4)
Line 8  is preceded by three carriage returns (there is no text on lines 6 and 7)

`>>white-space=pre-wrap<<`

Line 1 is short.
Line 2 has a 	tab and extra   spaces    between     words.
Line 3 is a very long line that continue with text because it is a very long line that continue with text because it is a very long line that continue with text because it is a very long line that continue with text because it is a very long line.
Line 5 is preceded by two carriage returns (there is no text on line 4)
Line 8  is preceded by three carriage returns (there is no text on lines 6 and 7)

`>>white-space=-moz-pre-wrap<<`

Line 5 is preceded by two carriage returns (there is no text on line 4)

Line 8 is preceded by three carriage returns (there is no text on lines 6 and 7)

`>>white-space=-o-pre-wrap<<`

Line 5 is preceded by two carriage returns (there is no text on line 4)

Line 8 is preceded by three carriage returns (there is no text on lines 6 and 7)

`>>white-space=nowrap<<`

Line 5 is preceded by two carriage returns (there is no text on line 4)

Line 8 is preceded by three carriage returns (there is no text on lines 6 and 7)

Observations on an Apple Mac OS X, using the following browsers:

Firefox 1.5.0.6
iCab b382
Netscape 7.1 (because it is so bad)
Omniweb 5.1.2
Safari 2.0.4

And on an Windows XP using the following browsers:

Firefox 1.5.0.4
Internet Explorer 6.0.2800.1106
Netscape 7.1

>>white-space=pre<<

works on all browsers tested
- But two and three carriage returns look the same

>>white-space=pre-wrap<<

works on iCab

>>white-space=-moz-pre-wrap<<

Works on Firefox (Mac & PC) and Netscape (Mac & PC)