[css2] changes to fonts-stretch and to font made, some other tidying of typos, ciomments added prior to rearrangement of 15.4 font characteristics (not done yet)

svgeesus · svgeesus · commit 444eb0e76247 · 1998-03-20T04:27:34.000Z
--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%401269
diff --git a/css2/fonts.src b/css2/fonts.src
@@ -1,6 +1,6 @@
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 <html lang="en">
-<!-- $Id: fonts.src,v 2.27 1998-03-17 09:49:03 ijacobs Exp $ -->
+<!-- $Id: fonts.src,v 2.28 1998-03-20 04:27:34 clilley Exp $ -->
 <HEAD>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <TITLE>Fonts</TITLE>
@@ -98,10 +98,7 @@ agent. The obvious way to specify a font is by it's name, a single string which
 </div>
 
 <p>Unfortunately, there exists no well-defined and universally
-accepted taxonomy for classifying fonts based on their names, and terms that apply to one
-font family name may not be appropriate for others. For example, the term
-'italic' is commonly used to label slanted text, but slanted text may
-also be labeled <EM>Oblique, Slanted, Incline, Cursive</EM> or
+accepted taxonomy for classifying fonts based on their names, and terms that apply to one font family name may not be appropriate for others. For example, the term 'italic' is commonly used to label slanted text, but slanted text may also be labeled <EM>Oblique, Slanted, Incline, Cursive</EM> or
 <EM>Kursiv</EM>. This lack of systematic naming makes it impossible, in the general case, to generate a modified font face name that differs in a particular way such as being bolder.
 
 <P>Because of this, CSS uses a different model. Fonts are requested not through a single font name but through setting a series of font properties. These property values form the
@@ -356,16 +353,9 @@ with emphasized words (EM) in oblique small-caps:
 </div>
 
 <!-- There may be other variants in the font family as well, such as
-fonts with old-style numerals, small-caps numerals, condensed or
-expanded letters, etc. CSS2 does not offer 'font-variant' values that select
+fonts with old-style numerals, small-caps numerals, etc. CSS2 does not offer 'font-variant' values that select
 those variants. -->
 
-    <!-- bitstream and apple have proposed a font-condense property, this
-    seems a good idea as it keeps normal condensed and expanded faces in
-    the same font family instead of creating pseudo families like
-    "Helvetica Condensed". DSSSL has a nine point scale (using keywords)
-    called font-proportionate-width -->
-
 <P>Insofar as this property causes text to be transformed to
 uppercase, the same considerations as for <span
 class="propinst-text-transform">'text-transform'</span> apply.
@@ -473,24 +463,25 @@ may have eight different face weights.
 <P>The following two examples show typical mappings.</P>
 
 <div class="html-example">
-<P>Assume four weights in the "Example1" family, from lightest to
+<P>Assume four weights in the "Rattlesnake" family, from lightest to
 darkest: <EM>Regular, Medium, Bold, Heavy.</EM></p>
 <TABLE border summary="Example of font-weight mapping">
 <CAPTION>First example of font-weight mapping</CAPTION>
+<!-- rattlesnake, ostrich and more at the Austin meeting -->
 <THEAD>
 <TR><TH>Available faces <TH>Assignments <TH>Filling the holes
 </THEAD>
-<TR><TD>"Example1 Regular"    <TD> 400          <TD> 100, 200, 300
-<TR><TD>"Example1 Medium"     <TD> 500          <TD>&nbsp;
-<TR><TD>"Example1 Bold"       <TD> 700          <TD> 600
-<TR><TD>"Example1 Heavy"      <TD> 800          <TD> 900
+<TR><TD>"Rattlesnake Regular"    <TD> 400          <TD> 100, 200, 300
+<TR><TD>"Rattlesnake Medium"     <TD> 500          <TD>&nbsp;
+<TR><TD>"Rattlesnake Bold"       <TD> 700          <TD> 600
+<TR><TD>"Rattlesnake Heavy"      <TD> 800          <TD> 900
 </TABLE>
 </div>
 
 <div class="html-example">
 <P>Assume six weights in the
-"Example2" family: <EM>Book, Medium, Bold, Heavy, Black,
-ExtraBlack.</EM> Note that here the user agent
+"Ice Prawn" family: <EM>Book, Medium, Bold, Heavy, Black,
+ExtraBlack.</EM> Note that in this instance the user agent
 has decided <EM>not</EM> to assign a numeric
 value to "Example2 ExtraBlack".</p>
 
@@ -500,12 +491,12 @@ value to "Example2 ExtraBlack".</p>
 <THEAD>
 <TR><TH>Available faces <TH>Assignments <TH>Filling the holes
 </THEAD>
-<TR><TD>"Example2 Book"       <TD> 400          <TD> 100, 200, 300
-<TR><TD>"Example2 Medium"     <TD> 500          <TD>&nbsp;
-<TR><TD>"Example2 Bold"       <TD> 700          <TD> 600
-<TR><TD>"Example2 Heavy"      <TD> 800          <TD>&nbsp;
-<TR><TD>"Example2 Black"      <TD> 900          <TD>&nbsp;
-<TR><TD>"Example2 ExtraBlack" <TD> (none)       <TD>&nbsp;
+<TR><TD>"Ice Prawn Book"       <TD> 400          <TD> 100, 200, 300
+<TR><TD>"Ice Prawn Medium"     <TD> 500          <TD>&nbsp;
+<TR><TD>"Ice Prawn Bold"       <TD> 700          <TD> 600
+<TR><TD>"Ice Prawn Heavy"      <TD> 800          <TD>&nbsp;
+<TR><TD>"Ice Prawn Black"      <TD> 900          <TD>&nbsp;
+<TR><TD>"Ice Prawn ExtraBlack" <TD> (none)       <TD>&nbsp;
 </TABLE>
 </div>
 
@@ -514,20 +505,21 @@ value to "Example2 ExtraBlack".</p>
 <!-- #include src=properties/font-stretch.srb -->
 
 <P> The <span class="propinst-font-stretch">'font-stretch'</span> property
-selects between normal, condensed and extended faces within a font family. Absolute numerical and keyword values have the following equivalent meanings:</p>
-
-<dl><dt>ultra-condensed<dd>100
-<dt>extra-condensed<dd>200
-<dt>condensed<dd>300
-<dt>semi-condensed<dd>400
-<dt>normal<dd>500
-<dt>semi-expanded<dd>600
-<dt>expanded<dd>700
-<dt>extra-expanded<dd>800
-<dt>ultra-expanded<dd>900
-</dl>
+selects between normal, condensed and extended faces within a font family. Absolute keyword values have the following ordering, from narrowest to widest :</p>
+
+<ol>
+	<li>ultra-condensed
+	<li>extra-condensed
+	<li>condensed
+	<li>semi-condensed
+	<li>normal
+	<li>semi-expanded
+	<li>expanded
+	<li>extra-expanded
+	<li>ultra-expanded
+</ol>
 
-<p>The relative keyword 'wider' sets the value to 100 more than the inherited value (while not increasing it above 900); the relative keyword 'narrower' sets the value to 100 less than the inherited value (while not decreasing it below 100).
+<p>The relative keyword 'wider' sets the value to the next more expanded value more than the inherited value (while not increasing it above ultra-expanded); the relative keyword 'narrower' sets the value to the next more condensed value than the inherited value (while not decreasing it below ultra-condensed).
 <!-- should this go to next more condensed/expanded face in that family as the computed value? like bolder/lighter -CL  -->
 
 <H3><a name="font-size">Font size</a>: the <span
@@ -538,8 +530,8 @@ properties</H3>
 <!-- #include src=properties/font-size.srb -->
 
 
-<P>This property describes the size of the font when set solid. Values have
-the following meanings:</p>
+<P>This property describes the size of the font when set solid.
+Values have the following meanings:</p>
 
 <DL>
     <DT><span class="index-def" title="&lt;absolute-size&gt;::definition of">
@@ -629,7 +621,7 @@ font size alone may lead to illegible characters.
 <P>For example, the popular font Verdana has a z value of 1.72; in an
 instance of Verdana with <span class="propinst-font-size">'font-size'</span> 100 points, the <span class="definst-x-height">x-height</span> is 58
 pt (100/58=1.72). For comparison, Times New Roman has a z value of
-2.17.
+2.17. As the z value increases, a font for a bicameral script becomes less legible at a given point size.
 
 <P>This property allows authors to specify a z value for an element
 that preserves the <span class="index-inst" title="x-height"><span
@@ -692,44 +684,9 @@ class="propinst-line-height">'line-height'</span>, and <span
 class="propinst-font-family">'font-family'</span>, at the same place
 in the style sheet. <!-- but not font-size-adjust or font-stretch -CL --> The syntax of
 this property is based on a traditional typographical shorthand
-notation to set multiple properties related to fonts.
-
-<P> For a definition of allowed and initial values, see the previously
-defined properties.
-
-<P>The following values refer to <span class="index-def" title="system
-fonts">system fonts</span>:</p>
-
-<dl>
-<dt><strong>caption</strong>
-<dd>Used for captioned controls (e.g. buttons, drop-downs, etc.).
-<dt><strong>icon</strong>
-<dd> Used to label icons.
-<dt><strong>menu</strong>
-<dd> Used in menus (e.g., dropdown menus and menu lists).
-<dt><strong>message-box</strong>
-<dd> Used in dialog boxes.
-<dt><strong>small-caption</strong>
-<dd> Used for labeling small controls.
-<dt><strong>status-bar</strong>
-<dd> Used in window status bars.
-</dl>
-
-<P>System fonts may only be accessed as a whole; that is, the font
-family, size, weight, style, etc. are all set at the same time. If no
-font with the indicated characteristics exists on a given platform,
-the user agent should either intelligently substitute (e.g., a smaller
-version of the 'caption' font might be used for the 'smallcaption'
-font), or substitute a user agent default font. As for regular fonts,
-if, for a system font, any of the individual properties are not part
-of the operating system's available user preferences, those properties
-should be set to their initial values.
+notation to set multiple properties related to fonts. 
 
-<P>That is why this property is "almost" a shorthand property: system
-fonts can only be specified for this property, not with <span
-class="propinst-font-family">'font-family'</span> itself, so <span
-class="propinst-font">'font'</span> allows authors to do more than the
-sum of its subproperties.</p>
+<p>All font related properties are first reset to their initial values, including those listed in the preceeding paragraph plus <span class="propinst-font-stretch">'font-stretch'</span> and <span class="propinst-font-size-adjust">'font-size-adjust'</span>. Then, those properties that are given explicit values in the <span class="propinst-font">'font'</span> shorthand are set to those values. For a definition of allowed and initial values, see the previously defined properties. For reasons of backwards compatibility, it is not possible to set <span class="propinst-font-stretch">'font-stretch'</span> and <span class="propinst-font-size-adjust">'font-size-adjust'</span> to other than their initial values using the <span class="propinst-font">'font'</span> shorthand property; instead, set the individual properties.
 
 <div class="example"><P>
 Examples:
@@ -749,7 +706,7 @@ itself.
 <P>The first three rules do not specify the <span
 class="propinst-font-variant">'font-variant'</span> and <span
 class="propinst-font-weight">'font-weight'</span> explicitly, so these
-properties receive their initial values ('normal'). The fourth rule
+properties receive their initial values ('normal'). Notice that the font family name "new century schoolbook", which contains spaces, is enclosed in quotes. The fourth rule
 sets the <span class="propinst-font-weight">'font-weight'</span> to
 'bold', the <span class="propinst-font-style">'font-style'</span> to
 'italic', and implicitly sets <span
@@ -764,16 +721,18 @@ size) and the <span class="propinst-font-family">'font-family'</span>
 ('fantasy'). It follows that the keyword 'normal' applies to the two
 remaining properties: <span
 class="propinst-font-style">'font-style'</span> and <span
-class="propinst-font-weight">'font-weight'</span>.
-
+class="propinst-font-weight">'font-weight'</span>. All of these examples set <span
+class="propinst-font-variant">'font-variant'</span> and <span
+class="propinst-font-weight">'font-weight'</span> to their initial values.
 </div>
 
+
 <P>The following values refer to <span class="index-def" title="system
 fonts">system fonts</span>:</p>
 
 <dl>
-<dt><strong>caption</strong>
-<dd>Used for (captioned controls (e.g. buttons, drop-downs, etc.).
+<dt><strong>caption</strong><!-- strong?? you mean like, bold? -->
+<dd>Used for captioned controls (e.g. buttons, drop-downs, etc.).
 <dt><strong>icon</strong>
 <dd> Used to label icons.
 <dt><strong>menu</strong>
@@ -786,13 +745,22 @@ fonts">system fonts</span>:</p>
 <dd> Used in window status bars.
 </dl>
 
-<P>System fonts can only be accessed as a whole; that is, the font
-family, size, weight, style, etc. are all set at the same time from
-the values used by that system font. These values may then be altered
-individually if desired. As for regular fonts, if, for a system font,
-any of the individual properties are not part of the operating
-system's available user preferences, those properties should be set to
-their initial values.
+<P>System fonts may only be accessed as a whole; that is, the font
+family, size, weight, style, etc. are all set at the same time.These values may then be altered individually if desired.  If no
+font with the indicated characteristics exists on a given platform,
+the user agent should either intelligently substitute (e.g., a smaller
+version of the 'caption' font might be used for the 'smallcaption'
+font), or substitute a user agent default font. As for regular fonts,
+if, for a system font, any of the individual properties are not part
+of the operating system's available user preferences, those properties
+should be set to their initial values.
+
+<P>That is why this property is "almost" a shorthand property: system
+fonts can only be specified with this property, not with <span
+class="propinst-font-family">'font-family'</span> itself, so <span
+class="propinst-font">'font'</span> allows authors to do more than the
+sum of its subproperties. However, the individual properties such as <span class="propinst-font-weight">'font-weight'</span> are still given values taken from the system font, which can be independently varied.</p>
+<!-- strange glitch, the last two paragraphs ocurred twice in slightly different forms - merged and the spare copy deleted -CL -->
 
 <div class="example">
 <p>Example:
@@ -829,9 +797,6 @@ a smaller version of the 'caption' font might be used for the
 'smallcaption' font), or substitute a user agent default font.
 
 
-
-
-
 <h3><a name="generic-font-families">Generic font families</a></h3>
 
 <p>Generic font families are a fallback mechanism, a means of
@@ -1217,8 +1182,7 @@ class="propinst-font-variant">'font-variant'</span> property except
 that a comma-separated list is permitted.
 
 <div class="note"><P>
-<em><strong>Note.</strong>
-Cyrillic <i>pryamo&#301;</i>
+<em><strong>Note.</strong>Cyrillic <i>pryamo&#301;</i>
 faces may be labeled with a <span
 class="descinst-font-variant">'font-variant'</span>
 of small-caps, which will give better consistency with Latin faces
@@ -1230,7 +1194,7 @@ same reason).
 
 <!-- #include src=descriptors/font-stretch.srb -->
 
-<p>This is the CSS indication of which of the condensed or expanded nature of the font. It takes the same values as the <span class="propinst-font-stretch">'font-stretch'</span> property except that:</p>
+<p>This is the CSS indication of the condensed or expanded nature of the face relative to others in the same font family. It takes the same values as the <span class="propinst-font-stretch">'font-stretch'</span> property except that:</p>
 
 <ul><li>relative keywords (wider, narrower) are not permitted
 <li>a comma-separated list is permitted
@@ -1251,8 +1215,6 @@ exceptions:</p>
 </ol>
 
 
-<!-- should values not a multiple of 100 also be allowed? -->
-
 <!-- #include src=descriptors/font-size.srb -->
 
 <p>This is the descriptor for the sizes provided by this font. Only <a
@@ -1264,11 +1226,7 @@ of absolute lengths is permitted.
 
 
 <p>The initial value of 'all' is suitable for scalable fonts, so this
-descriptor will only be useful in an @font-face for bitmap fonts,
-or for scalable fonts which have hand-tuned bitmaps at specific point
-sizes.
-
-<!-- how to indicate tuned bitmaps at certain point sizes? -->
+descriptor will only be useful in an @font-face for bitmap fonts.
 
 
 <H3><A NAME="dataqual">Descriptors for Font Data Qualification</a>: <span
@@ -1281,8 +1239,8 @@ sufficient glyphs to render a particular character.
 
 <!-- #include src=descriptors/unicode-range.srb -->
 
-<P>This is the descriptor for the range of ISO 10646 characters
-covered by the font.  Since this is sparse (most fonts do not cover
+<P>This is the descriptor for the <!-- need xref to syndata for unicode range --> range of ISO 10646 characters
+covered by the font.  <!-- move this part to characteristics from here down -->Since this is sparse (most fonts do not cover
 the whole of ISO 10646) this descriptor lists blocks or ranges which
 do have <em>some</em> coverage (no promise is made of complete
 coverage). This method is extensible to future allocation of
@@ -1293,6 +1251,8 @@ invalidating existing content.
 are expressed using hexadecimal numbers prefixed by "U+",
 corresponding to character code positions in ISO 10646 ([[ISO10646]]).
 
+<!--- stop here, rest is CSS syntax so belongs here -->
+
 <P>For example, <tt>U+05D1</tt> is the ISO 10646
 character 'Hebrew letter bet'. For values outside the Basic
 Multilingual Plane (BMP), additional leading digits corresponding to
@@ -1407,11 +1367,11 @@ downloadable or locally installed.
 
 <!-- #include src=descriptors/src.srb -->
 
-<p>This is a prioritized, comma-separated list of URIs and/or locally
+<p>This is a <!-- where is the font characteristic --> prioritized, comma-separated list of URIs and/or locally
 installed font face names. The URI points to the font data itself.
-This is required if the WebFont is to be retrieved. The font resource
-may be a subset of the source font, for example it may contain only the glyphs needed for the current page of for a set of pages.
-
+This is required if the WebFont is to be downloaded. The font resource
+may be a subset of the source font, for example it may contain only the glyphs needed for the current page or for a set of pages.
+<!-- move some of this discussion to characteristics section -->
 
 <p>As with <a href="syndata.html#uri">other URIs in CSS</a>, the URI may be partial, in which case it is resolved relative to the location of the style sheet containing the <span class="index-inst" title="@font-face"> @font-face</span>.
 
@@ -1420,18 +1380,18 @@ may be a subset of the source font, for example it may contain only the glyphs n
 <p>The format contains a comma-separated list of strings
 that denote well-known font formats. The user agent will recognize the name of font formats that it supports and will avoid downloading fonts in formats that it does not recognize.
 
-<p>An initial list of format strings likely to be used by implementations on various platforms is:</p>
-
-<dl>
-<dt>"truedoc-pfr"<dd>TrueDoc&trade; Portable Font Resource (.pfr)
-<dt>"embedded-opentype"<dd>Embedded OpenType (.eot)
-<dt>"type-1"<dd>PostScript&trade; Type 1 (.pfb, .pfa)
-<dt>"truetype"<dd>TrueType (.ttf)
-<dt>"opentype"<dd>OpenType (.ttf), including TrueType Open.
-<dt>"truetype-gx"<dd>TrueType with GX extensions
-<dt>"speedo"<dd>Speedo
-<dt>"intellifont"<dd>Intellifont
-</dl>
+<p>An initial list of format strings defined by this specification and representing formats likely to be used by implementations on various platforms is:</p>
+
+<table>
+<tr><td>"truedoc-pfr"<td>TrueDoc&trade; Portable Font Resource (.pfr)
+<tr><td>"embedded-opentype"<td>Embedded OpenType (.eot)
+<tr><td>"type-1"<td>PostScript&trade; Type 1 (.pfb, .pfa)
+<tr><td>"truetype"<td>TrueType (.ttf)
+<tr><td>"opentype"<td>OpenType (.ttf), including TrueType Open.
+<tr><td>"truetype-gx"<td>TrueType with GX extensions
+<tr><td>"speedo"<td>Speedo
+<tr><td>"intellifont"<td>Intellifont
+</table>
 
 
 <p> The <span class="index-def" title="&lt;font-face-name&gt;::definition
