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Old 09-28-2016, 01:07 AM   #1
BetterRed
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half star
Anyone ever seen unicode for half stars - I looked high and low, babblemap, w3, fileinfo etc. 'Course my eyes ain't what they used to be either.

BR
Last edited by BetterRed; 09-28-2016 at 02:21 AM.
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Old 09-28-2016, 03:15 AM   #2
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You mean a star cut in half horizontal or vertical? As far as I know it isn't there. I have never seen it.
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Old 09-28-2016, 03:40 AM   #3
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Quote:
Originally Posted by BetterRed View Post
Anyone ever seen unicode for half stars - I looked high and low, babblemap, w3, fileinfo etc. 'Course my eyes ain't what they used to be either.
AFAIK, half stars don't exist in Unicode, but someone has recently submitted a proposal for them.

If you don't want to use images, you could:

a) use a fraction glyph: ★★★★½
b) use a white star as a half star: ★★★★☆

In case you don't see the stars, here's their Unicode information:

★ Unicode Character 'BLACK STAR' (U+2605) ★
☆ Unicode Character 'WHITE STAR' (U+2606) ☆
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Old 09-28-2016, 03:43 AM   #4
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Quote:
Originally Posted by Doitsu View Post
AFAIK, half stars don't exist in Unicode, but someone has recently submitted a proposal for them.

If you don't want to use images, you could:

a) use a fraction glyph: ★★★★½
b) use a white star as a half star: ★★★★☆

In case you don't see the stars, here's their Unicode information:

★ Unicode Character 'BLACK STAR' (U+2605) ★
☆ Unicode Character 'WHITE STAR' (U+2606) ☆
For whatever my opinion is worth, if I saw option "b", I'd read that as "4 out of 5 stars", not "four-and-one-half stars".
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Old 09-28-2016, 04:03 AM   #5
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Thanks guys - The question came to me as a result of calibre's recent support for half star ratings as in

Click image for larger version Name: Capture.JPG Views: 462 Size: 12.1 KB ID: 151972

I assumed the full star was Black Star (U+2605) and the half star was - good question. I assumed it was hidden in a corner I couldn't see.

Maybe Kovid has pre-empted acceptance of Ken Shirriff's proposal and he's using the HalfStarDemo.ttf - that might be it, the timing fits. He's had a lot of requests for half-stars.

BR
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Old 09-28-2016, 04:24 AM   #6
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Quote:
Originally Posted by BetterRed View Post
Maybe Kovid has pre-empted acceptance of Ken Shirriff's proposal and he's using the HalfStarDemo.ttf - that might be it, the timing fits. He's had a lot of requests for half-stars.
The method suggested in this Stackoverflow thread also appears to be working with stars. However, it requires pseudo selector support.

Here's a proof of concept code:

Spoiler:
Code:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
  "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<style>
.content {
    position: relative;
    font-size: 50px;
}

.content:after {
    position: absolute;
    overflow: hidden;
    content: "★";
    color: white;
}
.left .content:after {
    top: 0;
    left: 0;
    width: .50em;
}
</style>


</head>
<body>
<div class="left">Half star with pseudo elements: <span class="content">★</span></div>
</body>
</html>


Here's what it looks like in Sigil (and Calibre):
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Old 09-28-2016, 10:29 AM   #7
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Neat - Thanks Doitsu!

I fiddled with your code and got it to show the left half of the star black with the right half missing if anyone is interested. (edit) I also changed the color from white to transparent so it'll work on any background color.

Spoiler:

Code:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
  "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<style>
.content {
    position: relative;
    font-size: 50px;
    color: transparent;
}

.content:after {
    position: absolute;
    overflow: hidden;
    content: "★";
    color: black;
    top: 0;
    left: 0;
    width: .50em;
}
</style>


</head>
<body>
<div>Half star with pseudo elements: <span class="content">★</span></div>

<div style="background-color:blue">Half star with pseudo elements: <span class="content">★</span></div>
</body>
</html>


(edit-edit) You can change how much of the star is visible by changing the "width" (.25em for 1/4 star, .75em for 3/4 star)
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Last edited by Turtle91; 09-28-2016 at 10:53 AM.
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Old 09-28-2016, 11:06 AM   #8
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Peeking the code and the repository, I think the answer is more along the line of a new font than a specific css.
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Old 09-28-2016, 02:28 PM   #9
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I made a component for wpf for this a while back...
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Old 09-28-2016, 11:57 PM   #10
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calibre uses the 1/2 unicode glyph: ★★★★½ alongwith a custom font to render it as a half star.
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