Define available fragmenter extent so we're not using 'available space' for so many different things.

Author: fantasai

css3-break/Overview.html

@@ -245,10 +245,9 @@ <h2 id=intro><span class=secno>1. </span> Introduction</h2>
    href="#CSS3COL" rel=biblioentry>[CSS3COL]<!--{{CSS3COL}}--></a> create a
    similarly fragmented environment. The generic term for breaking content
    across containers is <dfn id=fragmentation>fragmentation</dfn>. This
-   module explains how content breaks across <a
-   href="#fragmenter"><i>fragmenters</i></a> such as pages and columns and
-   how such breaks can be <a href="#breaking-controls">controlled by the
-   author</a>.
+   module explains how content breaks across <i>fragmenters</i> such as pages
+   and columns and how such breaks can be <a
+   href="#breaking-controls">controlled by the author</a>.
 
   <h3 id=placement><span class=secno>1.1. </span> Module Interactions</h3>
 
@@ -290,7 +289,7 @@ <h2 id=fragmentation-model><span class=secno>2. </span> Fragmentation Model
     chain of <a href="http://www.w3.org/TR/css3-regions">CSS regions</a>, or
     a <a href="http://www.w3.org/TR/css3-page/">paged media display</a>.
 
-   <dt><dfn id=fragmenter>fragmenter</dfn>
+   <dt><dfn id=fragmentation-container>fragmentation container</dfn>
 
    <dd> A box&mdash;such as a page box, column box, or region&mdash;that
     contains a portion (or all) of a <a href="#fragmented-flow"><i>fragmented
@@ -301,33 +300,41 @@ <h2 id=fragmentation-model><span class=secno>2. </span> Fragmentation Model
 
    <dt><dfn id=fragmentation-context>fragmentation context</dfn>
 
-   <dd> An ordered series of <a href="#fragmenter"><i>fragmenters</i></a>. A
-    given fragmentation context can only have one block flow direction across
-    all its fragmenters.
+   <dd> An ordered series of <i>fragmenters</i>. A given fragmentation
+    context can only have one block flow direction across all its
+    fragmenters.
+
+   <dt><dfn id=fragmentation-direction>fragmentation direction</dfn>
+
+   <dd> The block flow direction of the fragmentation context, i.e. the
+    direction in which content is fragmented.
 
    <dt><dfn id=fragmentation0>fragmentation</dfn>
 
-   <dd> The process of splitting a content flow across the <a
-    href="#fragmenter"><i>fragmenters</i></a> that form a <a
-    href="#fragmentation-context"><i>fragmentation context</i></a>.
+   <dd> The process of splitting a content flow across the <i>fragmenters</i>
+    that form a <a href="#fragmentation-context"><i>fragmentation
+    context</i></a>.
 
    <dt><dfn id=box-fragment>box fragment</dfn> or <dfn
     id=fragment>fragment</dfn>
 
-   <dd> The portion of a box that belongs to exactly one <a
-    href="#fragmenter"><i>fragmenter</i></a>. A box in continuous flow always
-    consists of only one fragment. A box in a fragmented flow consists of one
-    or more fragments.
+   <dd> The portion of a box that belongs to exactly one <i>fragmenter</i>. A
+    box in continuous flow always consists of only one fragment. A box in a
+    fragmented flow consists of one or more fragments.
+
+   <dt><dfn id=available-fragmenter-extent>available fragmenter extent</dfn>
+
+   <dd> The remaining extent on the fragmenter available to a given element,
+    i.e. between the end of preceding content on fragmenter and the edge of
+    the fragmenter.
   </dl>
 
   <p> Each <dfn id=fragmentation-break>fragmentation break</dfn> (hereafter,
    <dfn id=break>break</dfn>) ends layout of the fragmented box in the
-   current <a href="#fragmenter"><i>fragmenter</i></a> and causes the
-   remaining content to be laid out in the next <a
-   href="#fragmenter"><i>fragmenter</i></a>, in some cases causing a new
-   fragmenter to be generated to hold the deferred content. When multiple
-   flows are laid out in parallel, fragmentation is performed independently
-   in each flow.
+   current <i>fragmenter</i> and causes the remaining content to be laid out
+   in the next <i>fragmenter</i>, in some cases causing a new fragmenter to
+   be generated to hold the deferred content. When multiple flows are laid
+   out in parallel, fragmentation is performed independently in each flow.
 
   <p> Breaking a fragmenter F effectively splits the fragmenter into two
    fragmenters (F<sub>1</sub> and F<sub>2</sub>). The only difference is that
@@ -963,10 +970,10 @@ <h3 id=varying-size-boxes><span class=secno>5.1. </span> Breaking into
     progress from the breakpoint on the previous, but recalculating sizes and
     positions using its own size as if the entire element were fragmented
     across fragmenters of this size. Progress is measured in percentages (not
-    absolute lengths) of used/available space and in amount of used/remaining
-    content. However, when laying out scrollable elements and certain
-    replaced elements the UA may instead maintain a consistent measure and
-    resolved extent across fragmenters.
+    absolute lengths) of used/available fragmenter extent and in amount of
+    used/remaining content. However, when laying out scrollable elements and
+    certain replaced elements the UA may instead maintain a consistent
+    measure and resolved extent across fragmenters.
 
    <li><strong class=issue>Option A:</strong> Fragments of boxes that began
     on a previous fragmenter must start at the top of the new fragmenter. If
@@ -1442,6 +1449,9 @@ <h2 class=no-num id=index>Index</h2>
    <li>authoring tool, <a href="#authoring-tool"
     title="authoring tool"><strong>6.2.</strong></a>
 
+   <li>available fragmenter extent, <a href="#available-fragmenter-extent"
+    title="available fragmenter extent"><strong>2.</strong></a>
+
    <li>avoid break values, <a href="#avoid-break-values"
     title="avoid break values"><strong>3.1.</strong></a>
 
@@ -1474,15 +1484,18 @@ <h2 class=no-num id=index>Index</h2>
    <li>fragmentation break, <a href="#fragmentation-break"
     title="fragmentation break"><strong>2.</strong></a>
 
+   <li>fragmentation container, <a href="#fragmentation-container"
+    title="fragmentation container"><strong>2.</strong></a>
+
    <li>fragmentation context, <a href="#fragmentation-context"
     title="fragmentation context"><strong>2.</strong></a>
 
+   <li>fragmentation direction, <a href="#fragmentation-direction"
+    title="fragmentation direction"><strong>2.</strong></a>
+
    <li>fragmented flow, <a href="#fragmented-flow"
     title="fragmented flow"><strong>2.</strong></a>
 
-   <li>fragmenter, <a href="#fragmenter"
-    title=fragmenter><strong>2.</strong></a>
-
    <li>line break, <a href="#line-break"
     title="line break"><strong>4.2.</strong></a>
 

css3-break/Overview.src.html

@@ -123,7 +123,7 @@ <h2 id="fragmentation-model">
       a chain of <a href="http://www.w3.org/TR/css3-regions">CSS regions</a>,
       or a <a href="http://www.w3.org/TR/css3-page/">paged media display</a>.
     </dd>
-    <dt><dfn>fragmenter</dfn></dt>
+    <dt><dfn>fragmentation container</dfn></dt>
     <dd>
       A box&mdash;such as a page box, column box, or region&mdash;that contains
       a portion (or all) of a <i>fragmented flow</i>.
@@ -138,6 +138,11 @@ <h2 id="fragmentation-model">
       A given fragmentation context can only have one block flow direction
       across all its fragmenters.
     </dd>
+    <dt><dfn>fragmentation direction</dfn></dt>
+    <dd>
+      The block flow direction of the fragmentation context,
+      i.e. the direction in which content is fragmented.
+    </dd>
     <dt><dfn>fragmentation</dfn></dt>
     <dd>
       The process of splitting a content flow across the <i>fragmenters</i>
@@ -148,6 +153,11 @@ <h2 id="fragmentation-model">
       The portion of a box that belongs to exactly one <i>fragmenter</i>.
       A box in continuous flow always consists of only one fragment.
       A box in a fragmented flow consists of one or more fragments.
+    <dt><dfn>available fragmenter extent</dfn></dt>
+    <dd>
+      The remaining extent on the fragmenter available to a given element,
+      i.e. between the end of preceding content on fragmenter and the
+      edge of the fragmenter.
   </dl>
 
   <p>
@@ -739,7 +749,7 @@ <h3 id="varying-size-boxes">
       progress from the breakpoint on the previous, but recalculating sizes
       and positions using its own size as if the entire element were fragmented
       across fragmenters of this size. Progress is measured in percentages
-      (not absolute lengths) of used/available space and in amount of
+      (not absolute lengths) of used/available fragmenter extent and in amount of
       used/remaining content.
       However, when laying out scrollable elements and certain replaced
       elements the UA may instead maintain a consistent measure and resolved