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From: Gerben Wierda <gerben.wierda@rna.nl>
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Subject: Re: Getting width of text to be typeset
Date: Sat, 23 May 2020 13:04:12 +0200
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> On 23 May 2020, at 01:49, Rik Kabel <ConTeXt@rik.users.panix.com> =
wrote:
>=20
> If the OP simply wants the width of a string, one can use =
\setwidthof#1\to#2.
>=20
> \define\String{pqrs}
> \setwidthof{\String}\to\Wdth
> \String\ is \Wdth\ wide.
>=20
> \setwidthof{{\tfb\em\String}}\to\Wdth
> {\tfb\em\String} is \Wdth\ wide.
>=20
> I do not know if that is different from the width of the same string =
unboxed from the paragraph. There may be some adjustments made in =
justification, expansion, and such that are not treated.

Additionally: suppose I am in lua. Would it be possible to get the width =
(and height) of a string back in lua as a value?

So, in lua something like this:

width =3D tex.widthofstring(=E2=80=9CI have a string with some =
$\frac{1}2{}$ (math) in it")

G=

--Apple-Mail=_6B00CC3C-C79A-4640-B025-222905FF4951
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><br =
class=3D""><div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D"">On 23 May 2020, at 01:49, Rik Kabel &lt;<a =
href=3D"mailto:ConTeXt@rik.users.panix.com" =
class=3D"">ConTeXt@rik.users.panix.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><p =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D"">If =
the OP simply wants the width of a string, one can use<span =
class=3D"Apple-converted-space">&nbsp;</span><font size=3D"+1" =
class=3D""><tt class=3D"">\setwidthof#1\to#2</tt></font>.</p><blockquote =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><font =
size=3D"+1" class=3D""><tt class=3D"">\define\String{pqrs}<br =
class=3D"">\setwidthof{\String}\to\Wdth<br class=3D"">\String\ is \Wdth\ =
wide.<br class=3D""><br =
class=3D"">\setwidthof{{\tfb\em\String}}\to\Wdth<br =
class=3D"">{\tfb\em\String} is \Wdth\ wide.<br class=3D""></tt><br =
class=3D""></font></blockquote><span style=3D"caret-color: rgb(0, 0, 0); =
font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none; float: none; display: inline !important;" =
class=3D"">I do not know if that is different from the width of the same =
string unboxed from the paragraph. There may be some adjustments made in =
justification, expansion, and such that are not treated.</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" =
class=3D""></div></blockquote></div><br class=3D""><div =
class=3D"">Additionally: suppose I am in lua. Would it be possible to =
get the width (and height) of a string back in lua as a value?</div><div =
class=3D""><br class=3D""></div><div class=3D"">So, in lua something =
like this:</div><div class=3D""><br class=3D""></div><div class=3D"">width=
 =3D tex.widthofstring(=E2=80=9CI have a string with some $\frac{1}2{}$ =
(math) in it")</div><div class=3D""><br class=3D""></div><div =
class=3D"">G</div></body></html>=

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