Function to capitalise each word

[Nige]

To save me re-inventing the wheel, does anyone have a function to
capitalise each word in form data? I was thinking along the lines of
capitalise the first letter of the string, then any other letter after a
space or hyphen.

So many users seem to think that just because they are online they can
use names like "mr john smith" and so I have to manually change them.
--
Nige

Please replace YYYY with the current year
ille quis mortem cum maximus ludos, vincat

[Evertjan.]

Fox wrote on 11 nov 2003 in comp.lang.javas cript:

String.prototyp e.ucwords = function(){
return this.replace(/\b\w/gi, function(c,i,s) { return
c.toUpperCase() ; });
}

String.prototyp e.ucwords = function(){
return this.toLowerCas e().replace(/\b\S/g, function(x) { return
x.toUpperCase() ; });
}

The rest has to be lowercase, IMHO.

I do not think the i in /gi is necessary.

Why replace the whole word?

Please explain for us mortals what the (c,i,s) does !
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Lasse Reichstein Nielsen]

"Evertjan." <ex************ **@interxnl.net > writes:

Fox wrote on 11 nov 2003 in comp.lang.javas cript:

String.prototyp e.ucwords = function(){
return this.replace(/\b\w/gi, function(c,i,s) { return
c.toUpperCase() ; });
}

String.prototyp e.ucwords = function(){
return this.toLowerCas e().replace(/\b\S/g, function(x) { return
x.toUpperCase() ; });
}

Your version would uppercase[1] any non-space letter after a word
boundary. The previous version uppercased all word characters after
a word boundary. Since word characters includes all letters, and only
letters can be meaninfully uppercased, there isn't any significant difference.
The rest has to be lowercase, IMHO.
What rest? Your RegExp matches more characters than the previous one.
I do not think the i in /gi is necessary.
Correct, \w matches both upper- and lowercase letters already.
Why replace the whole word?
It doesn't, it only replaces one character at a time. The \w code
matches *one* word character, not an entire word.
Please explain for us mortals what the (c,i,s) does !

From ECMA-262 section 15.5.4.11:
---
If /replaceValue/ is a function, then for each matched substring, call
the function with the following m + 3 arguments. Argument 1 is the
substring that matched. If /searchValue/ is a regular expression, the
next m arguments are all of the captures in the /MatchResult/ (see
15.10.2.1). Argument m + 2 is the offset within /string/ where the
match occurred, and argument m +3 is /string/. The result is a string
value derived from the original input by replacing each matched
substring with the corresponding return value of the function call,
converted to a string if need be.
---
I.e.,
c is the current match
and since the regExp doesn't contain capturing parentheses (m==0),
i is the offset of the match in the original string, and
s is the original string.

/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
DHTML Death Colors: <URL:http://www.infimum.dk/HTML/rasterTriangleD OM.html>
'Faith without judgement merely degrades the spirit divine.'

[Evertjan.]

Lasse Reichstein Nielsen wrote on 11 nov 2003 in comp.lang.javas cript:

It doesn't, it only replaces one character at a time. The \w code
matches *one* word character, not an entire word.

Rereading the specs ....., Yes, true.

Please explain for us mortals what the (c,i,s) does !

From ECMA-262 section 15.5.4.11:
---
If /replaceValue/ is a function, then for each matched substring, call
the function with the following m + 3 arguments. Argument 1 is the
substring that matched. If /searchValue/ is a regular expression, the
next m arguments are all of the captures in the /MatchResult/ (see
15.10.2.1). Argument m + 2 is the offset within /string/ where the
match occurred, and argument m +3 is /string/. The result is a string
value derived from the original input by replacing each matched
substring with the corresponding return value of the function call,
converted to a string if need be.
---
I.e.,
c is the current match
and since the regExp doesn't contain capturing parentheses (m==0),
i is the offset of the match in the original string, and
s is the original string.

That is all new to me, very usefull.

Quick try:

s = "a b c d e f".replace(/\w/g, function(c,i,s)
{ return "&lt;"+c+"="+i+ "+"+s+"<br> "});

document.write( s);

Nice.

Do you realy have to specify any not used arguments in function(c,i,s) ?
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Lasse Reichstein Nielsen]

"Evertjan." <ex************ **@interxnl.net > writes:

Do you realy have to specify any not used arguments in function(c,i,s) ?

No. Javascript functions generally don't have a fixed arity - you can
pass any number of arguments to any function. The formal parameter
names only give you names to refer more easily to the actual arguments.

So, you can use
function(c) { ... }
or even
function() {
var c = arguments[0];
...
}

/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
DHTML Death Colors: <URL:http://www.infimum.dk/HTML/rasterTriangleD OM.html>
'Faith without judgement merely degrades the spirit divine.'