Docs: udev.xml: Clean character range description

[elogind.git] / udev / udev.xml

diff --git a/udev/udev.xml b/udev/udev.xml
index c18d009b742aae99ce21b522a5e4866b31523345..77053b7700d77ed1f18fa1771e136db6eb4433af 100644 (file)
--- a/udev/udev.xml
+++ b/udev/udev.xml
@@ -74,26 +74,26 @@
       default rules directory <filename>/lib/udev/rules.d/</filename>,
       the custom rules directory <filename>/etc/udev/rules.d/</filename>
       and the temporary rules directory <filename>/run/udev/rules.d/</filename>.
       default rules directory <filename>/lib/udev/rules.d/</filename>,
       the custom rules directory <filename>/etc/udev/rules.d/</filename>
       and the temporary rules directory <filename>/run/udev/rules.d/</filename>.

-      All rule files are sorted and processed in lexical order, regardless
-      in which of these directories they live. Files in
-      <filename>/etc/udev/rules.d/</filename> have precedence over files with
-      the same name in <filename>/lib/udev/rules.d/</filename>. This can be
+      All rule files are collectively sorted and processed in lexical order,
+      regardless of the directories in which they live. However, files in
+      <filename>/etc/udev/rules.d/</filename> take precedence over files with
+      the same name in <filename>/lib/udev/rules.d/</filename>; this can be

       used to ignore a default rules file if needed.</para>
 
       used to ignore a default rules file if needed.</para>
 

-      <para>Rule files must end in <filename>.rules</filename>, other extensions
-      are ignored.</para>
+      <para>Rule files must have the extension <filename>.rules</filename>; other
+      extensions are ignored.</para>

 
 

-      <para>Every line in the rules file contains at least one key value pair.
-      There are two kind of keys, match and assignment keys.
+      <para>Every line in the rules file contains at least one key-value pair.
+      There are two kind of keys: match and assignment.

       If all match keys are matching against its value, the rule gets applied and the
       If all match keys are matching against its value, the rule gets applied and the

-      assign keys get the specified value assigned.</para>
+      assignment keys get the specified value assigned.</para>

 
       <para>A matching rule may rename a network interface, add symlinks
       pointing to the device node, or run a specified program as part of
       the event handling.</para>
 
 
       <para>A matching rule may rename a network interface, add symlinks
       pointing to the device node, or run a specified program as part of
       the event handling.</para>
 

-      <para>A rule consists of a list of one or more key value pairs separated by
-      a comma. Each key has a distinct operation, depending on the used operator. Valid
+      <para>A rule consists of a comma-separated list of one or more key-value pairs.
+      Each key has a distinct operation, depending on the used operator. Valid

       operators are:</para>
       <variablelist>
         <varlistentry>
       operators are:</para>
       <variablelist>
         <varlistentry>


@@ -128,8 +128,7 @@
         <varlistentry>
           <term><option>:=</option></term>
           <listitem>
         <varlistentry>
           <term><option>:=</option></term>
           <listitem>

-            <para>Assign  a  value  to  a key finally; disallow any later changes,
-            which may be used to prevent changes by any later rules.</para>
+            <para>Assign  a  value  to  a key finally; disallow any later changes.</para>

           </listitem>
         </varlistentry>
       </variablelist>
           </listitem>
         </varlistentry>
       </variablelist>


@@ -189,7 +188,7 @@
         <varlistentry>
           <term><option>DRIVER</option></term>
           <listitem>
         <varlistentry>
           <term><option>DRIVER</option></term>
           <listitem>

-            <para>Match the driver name of the event device. Only set for devices
+            <para>Match the driver name of the event device. Only set this key for devices

             which are bound to a driver at the time the event is generated.</para>
           </listitem>
         </varlistentry>
             which are bound to a driver at the time the event is generated.</para>
           </listitem>
         </varlistentry>


@@ -197,8 +196,8 @@
           <term><option>ATTR{<replaceable>filename</replaceable>}</option></term>
           <listitem>
             <para>Match sysfs attribute values of the event device. Trailing
           <term><option>ATTR{<replaceable>filename</replaceable>}</option></term>
           <listitem>
             <para>Match sysfs attribute values of the event device. Trailing

-            whitespace in the attribute values is ignored, if the specified match
-            value does not contain trailing whitespace itself.
+            whitespace in the attribute values is ignored unless the specified match
+            value itself contains trailing whitespace.

             </para>
           </listitem>
         </varlistentry>
             </para>
           </listitem>
         </varlistentry>


@@ -229,8 +228,8 @@
           <listitem>
             <para>Search the devpath upwards for a device with matching sysfs attribute values.
             If multiple <option>ATTRS</option> matches are specified, all of them
           <listitem>
             <para>Search the devpath upwards for a device with matching sysfs attribute values.
             If multiple <option>ATTRS</option> matches are specified, all of them

-            must match on the same device. Trailing whitespace in the attribute values is ignored,
-            if the specified match value does not contain trailing whitespace itself.</para>
+            must match on the same device. Trailing whitespace in the attribute values is ignored
+            unless the specified match value itself contains trailing whitespace.</para>

           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 


@@ -259,10 +258,11 @@
         <varlistentry>
           <term><option>PROGRAM</option></term>
           <listitem>
         <varlistentry>
           <term><option>PROGRAM</option></term>
           <listitem>

-            <para>Execute a program. The key is true, if the program returns
+            <para>Execute a program to determine whether there
+            is a match; the key is true if the program returns

             successfully. The device properties are made available to the
             successfully. The device properties are made available to the

-            executed program in the environment. The program's output printed to
-            stdout, is available in the RESULT key.</para>
+            executed program in the environment. The program's stdout
+            is available in the RESULT key.</para>

           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 


@@ -275,13 +275,13 @@
         </varlistentry>
       </variablelist>
 
         </varlistentry>
       </variablelist>
 

-      <para>Most of the fields support a shell style pattern matching. The following
+      <para>Most of the fields support shell-style pattern matching. The following

       pattern characters are supported:</para>
       <variablelist>
         <varlistentry>
           <term><option>*</option></term>
           <listitem>
       pattern characters are supported:</para>
       <variablelist>
         <varlistentry>
           <term><option>*</option></term>
           <listitem>

-            <para>Matches zero, or any number of characters.</para>
+            <para>Matches zero or more characters.</para>

           </listitem>
         </varlistentry>
         <varlistentry>
           </listitem>
         </varlistentry>
         <varlistentry>


@@ -295,8 +295,8 @@
           <listitem>
             <para>Matches any single character specified within the brackets. For
             example, the pattern string 'tty[SR]' would match either 'ttyS' or 'ttyR'.
           <listitem>
             <para>Matches any single character specified within the brackets. For
             example, the pattern string 'tty[SR]' would match either 'ttyS' or 'ttyR'.

-            Ranges are also supported within this match with the '-' character.
-            For example, to match on the range of all digits, the pattern [0-9] would
+            Ranges are also supported via the '-' character.
+            For example, to match on the range of all digits, the pattern [0-9] could

             be used. If the first character following the '[' is a '!', any characters
             not enclosed are matched.</para>
           </listitem>
             be used. If the first character following the '[' is a '!', any characters
             not enclosed are matched.</para>
           </listitem>


@@ -508,7 +508,7 @@
               <varlistentry>
                 <term><option>watch</option></term>
                 <listitem>
               <varlistentry>
                 <term><option>watch</option></term>
                 <listitem>

-                  <para>Watch the device node with inotify, when closed after being opened for
+                  <para>Watch the device node with inotify; when closed after being opened for

                   writing, a change uevent is synthesised.</para>
                 </listitem>
               </varlistentry>
                   writing, a change uevent is synthesised.</para>
                 </listitem>
               </varlistentry>