Is it possible to partially change color of text with Expressions

[Dan Ebberts]

Try this:

1) add a Fill Color animator for Color 2
2) add an Expression Selector
3) replace the expression for the Expression Selector’s Amount property with this:


myChar = "";
for (i = textIndex; i > 0; i--){
c = text.sourceText[i-1];
if (c == " ") break;
myChar = c;
}
if (myChar == "@" || myChar == "#") 100 else 0


Dan

[Dmitry Yershov]

Hi Dan,

You are a GOD. Thank you so much, that worked really nicely, just what I needed.

[Dmitry Yershov]

One small issue though: every time I edit the text it gives me this error:

It disables the expression and when I enable it – everything is fine again. Until I edit again. Any idea on what the issue might be?

I’m using AE CS6.

[Dan Ebberts]

This should take care of it:


try{
myChar = "";
for (i = textIndex; i > 0; i--){
c = text.sourceText[i-1];
if (c == " ") break;
myChar = c;
}
if (myChar == "@" || myChar == "#") 100 else 0
}catch(e){
value
}


Dan

[Dmitry Yershov]

Thank you very much, Dan!

[Scott Mcgee]

Hey Guys,

This is a brill expression, but for some unknown reason it doesn’t like paragraphing…Is there a little bit more that can be added to the expression to take into account for this?

I’m taking a stab in the dark that it’s because of this if (c == ” “) break; is just looking at each work in a row, but as soon as I paragraph, if it’s the first word, it doesn’t work, but if you hit space, the word color fills but not the @ or #.

Other than that I’m clueless.

[Scott Mcgee]

Funnily enough though, if I treat is as a textbox, when it wraps the text…It’s not affected that way.

[Scott Mcgee]

This works, but if you hit return on the very first character, or if you delete the space that at the end of the line, it shifts the colour forward one otherwise it works…Yay

try{
myChar = “”;
for (i = textIndex; i > 0; i–){
thisText = text.sourceText.replace(/\r?\n|\r/g, ‘ ‘).replace(/\s{2,}/g, ‘ ‘);
c = thisText[i-1];
if (c == ” “) break;
myChar = c;
}
if (myChar == “@” || myChar == “#”) 100 else 0
}catch(e){
value
}