Bug 47371 – Font family name containing more than one word without quote is not recognized if a word looks like a number

• Component: CSS
• Status: RESOLVED INVALID

[Xiaomei Ji]

Created attachment 70133 [details]
test case

Load the attached test case.
observe the alerted font name.
Font name with more than one word is recognized when quote is around the name.
If there is no quote around, the font name is not recognized. Computed font is the fallback font (system font when no other fonts specified).

Firefox recognizes both.

Following is from W3C (http://www.w3.org/TR/css3-fonts/#font-family-the-font-family-property):
<family-name>
The name of a font family of choice such as Helvetica or Verdana in the previous example. Font family names containing more than one word should be quoted. If quoting is omitted, whitespace characters before and after the font family name are ignored and any sequence of whitespace characters inside the font name is converted to a single space. Depending upon the font format used, font family names may be case-sensitive.

It is not a *must* to quote font name with multiple words.

[Yuzo Fujishima]

Unquoted space-separated font name is handled property by WebKit as far as no components look like a number.

In the test case, 010 in "Kruti Dev 010" is causing the issue.
If the font is renamed to "Kruti Dev a010", the test case works.

I corrected the bug title accordingly.

[Yuzo Fujishima]

Actually, Kruti Dev 010 is invalid if unquoted. (010 is not an identifier.)
So this is not a bug.

http://www.w3.org/Style/css2-updates/css2/fonts.html#font-family-prop

Font family names must either be given quoted as strings, or unquoted as a sequence of one or more identifiers. This means most punctuation characters and digits at the start of each token must be escaped in unquoted font family names.

For example, the following declarations are invalid:

font-family: Red/Black, sans-serif;
font-family: "Lucida" Grande, sans-serif;
font-family: Ahem!, sans-serif;
font-family: test@foo, sans-serif;
font-family: #POUND, sans-serif;
font-family: Hawaii 5-0, sans-serif;

If a sequence of identifiers is given as a font family name, the computed value is the name converted to a string by joining all the identifiers in the sequence by single spaces.