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<!-- $XConsortium: ch11.sgm /main/7 1996/09/08 19:33:53 rws $ -->
<!-- (c) Copyright 1995 Digital Equipment Corporation. -->
<!-- (c) Copyright 1995 Hewlett-Packard Company. -->
<!-- (c) Copyright 1995 International Business Machines Corp. -->
<!-- (c) Copyright 1995 Sun Microsystems, Inc. -->
<!-- (c) Copyright 1995 Novell, Inc. -->
<!-- (c) Copyright 1995 FUJITSU LIMITED. -->
<!-- (c) Copyright 1995 Hitachi. -->
<Chapter Id="SAG.CrDT.div.1">
<Title Id="SAG.CrDT.mkr.1">Creating Data Types Manually</Title>
<Para>There are two ways to create a data type definition:<IndexTerm><Primary>file types, See data types&lt;$nopage></Primary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>creating manually</Secondary></IndexTerm>
</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>Using the Create Action tool. Using Create Action is covered in
<!--Original XRef content: 'Chapter&numsp;9,
&xd2;Creating Actions and Data Types Using Create Action'--><XRef Role="ChapNumAndTitle" Linkend="SAG.dtCrA.mkr.1">.</Para>
</ListItem>
<ListItem>
<Para>By manually creating the data type definition.</Para>
</ListItem>
</ItemizedList>
<Para>Creating a data type manually requires you to edit a database file.</Para>
<Para>This chapter describes how to manually create data type definitions.</Para>
<InformalTable Id="SAG.CrDT.itbl.1" Frame="All">
<TGroup Cols="1">
<ColSpec Colname="1" Colwidth="4.0 in">
<TBody>
<Row Rowsep="1">
<Entry><Para><!--Original XRef content: 'Reasons You Must Create a Data Type Manually186'--><XRef Role="JumpText" Linkend="SAG.CrDT.div.3"></Para></Entry>
</Row>
<Row Rowsep="1">
<Entry><Para><!--Original XRef content: 'Components of a Data Type Definition: Criteria and Attributes186'--><XRef Role="JumpText" Linkend="SAG.CrDT.div.4"></Para></Entry>
</Row>
<Row Rowsep="1">
<Entry><Para><!--Original XRef content: 'Creating a Data Type Manually: General Steps187'--><XRef Role="JumpText" Linkend="SAG.CrDT.div.5"></Para></Entry>
</Row>
<Row Rowsep="1">
<Entry><Para><!--Original XRef content: 'Example of Creating a Personal Action and Data Type189'--><XRef Role="JumpText" Linkend="SAG.CrDT.div.8"></Para></Entry>
</Row>
<Row Rowsep="1">
<Entry><Para><!--Original XRef content: 'Defining the Data Criteria for a Data Type193'--><XRef Role="JumpText" Linkend="SAG.CrDT.div.14"></Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
<Sect1 Id="SAG.CrDT.div.2">
<Title>See Also</Title>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>For an introduction to data types, see
<!--Original XRef content: 'Chapter&numsp;8, &xd2;Introduction to Actions
and Data Types'--><XRef Role="ChapNumAndTitle" Linkend="SAG.IntAc.mkr.1">.</Para>
</ListItem>
<ListItem>
<Para>For reference information about data type definitions, see the
<Filename>dtdtsfile(4)</Filename> man page.</Para>
</ListItem>
</ItemizedList>
</Sect1>
<Sect1 Id="SAG.CrDT.div.3">
<Title Id="SAG.CrDT.mkr.2">Reasons You Must Create a Data Type Manually</Title>
<Para>Manually creating a data type lets you use all the capabilities built into the
syntax of data type definitions.</Para>
<Para><IndexTerm>
<Primary>data types</Primary>
<Secondary>requirements for manual creation</Secondary>
</IndexTerm>You must create a data type manually if you want to use these features of
data types:</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>Location (path)-based data typing</Para>
</ListItem>
<ListItem>
<Para>The ability to specify actions associated with the data type other than Open
and Print</Para>
</ListItem>
<ListItem>
<Para>Multiple name, pattern, or content criteria for the same data type&mdash;for
example, a data type based on files named <Filename>*.abc</Filename> or <Filename>*.def</Filename></Para>
</ListItem>
<ListItem>
<Para>Link-based data typing</Para>
</ListItem>
</ItemizedList>
</Sect1>
<Sect1 Id="SAG.CrDT.div.4">
<Title Id="SAG.CrDT.mkr.3">Components of a Data Type Definition: Criteria and Attributes</Title>
<Para>A data type definition consists of two separate database definitions:</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>The<IndexTerm>
<Primary>DATA_ATTRIBUTES</Primary>
<Secondary>definition</Secondary>
</IndexTerm>
<Filename>DATA_ATTRIBUTES</Filename> definition.</Para>
<Para>The <Filename>DATA_ATTRIBUTES</Filename> definition describes the data type's name and the
appearance and behavior of files of this type.</Para>
</ListItem>
<ListItem>
<Para>The <Filename><IndexTerm>
<Primary>DATA_CRITERIA</Primary>
<Secondary>definition</Secondary>
</IndexTerm>DATA_CRITERIA</Filename> definition.</Para>
<Para>The <Filename>DATA_CRITERIA</Filename> definition describes the typing criteria. Each criteria
definition specifies the <Filename>DATA_ATTRIBUTES</Filename> definition to which the criteria
apply.</Para>
</ListItem>
</ItemizedList>
<Para>There must be at least one <Filename><IndexTerm>
<Primary>DATA_CRITERIA</Primary>
<Secondary>paired with DATA_ATTRIBUTES</Secondary>
</IndexTerm>DATA_CRITERIA</Filename> definition for each
<Filename>DATA_ATTRIBUTES</Filename> definition; a <Filename>DATA_ATTRIBUTES</Filename> definition can have
multiple <Filename>DATA_CRITERIA</Filename> associated with it.</Para>
<Para>For example, you could create an attributes definition for PostScript files that
described how PostScript files look and behave in File Manager. Then, you
could create two separate criteria for the PostScript data type&mdash; one based on
file name and the other based on file content.</Para>
<Para>For more information, see
<!--Original XRef content: '&xd2;Defining the Data Criteria for a Data Type&xd3; on
page&numsp;193'--><XRef Role="SecTitleAndPageNum" Linkend="SAG.CrDT.div.14">.</Para>
</Sect1>
<Sect1 Id="SAG.CrDT.div.5">
<Title Id="SAG.CrDT.mkr.4">Creating a Data Type Manually: General Steps</Title>
<Para>This section describes how to create a data type configuration file.</Para>
<Sect2 Id="SAG.CrDT.div.6">
<Title Id="SAG.CrDT.mkr.5">Configuration Files for Data Types<IndexTerm><Primary>data types</Primary><Secondary>configuration files</Secondary></IndexTerm><IndexTerm><Primary>configuration files</Primary><Secondary>data types</Secondary></IndexTerm></Title>
<Para>The requirements for configuration files containing data type definitions are:</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>The files must use the naming convention <Symbol Role="Variable">name</Symbol><Filename>.dt</Filename></Para>
</ListItem>
<ListItem>
<Para>The files must be located on the database search path. The default search
path is:</Para>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<colspec colwidth="1.63in">
<colspec colwidth="3.84in">
<TBody>
<Row>
<Entry><Para>Personal data types</Para></Entry>
<Entry><Para><Symbol Role="Variable">HomeDirectory</Symbol><Filename>/.dt/types</Filename></Para></Entry>
</Row>
<Row>
<Entry><Para>System-wide data types</Para></Entry>
<Entry><Para><Filename>/etc/dt/appconfig/types/</Filename><Symbol Role="Variable">language</Symbol></Para></Entry>
</Row>
<Row>
<Entry><Para>Built-in data types</Para></Entry>
<Entry><Para><Filename>/usr/dt/appconfig/types/</Filename><Symbol Role="Variable">language</Symbol>. You
should not use this directory.</Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
</ListItem>
</ItemizedList>
<Para>For information on modifying the database search path, see
<!--Original XRef content: '&xd2;Setting the Value
of a Search Path&xd3; on page&numsp;115'--><XRef Role="SecTitleAndPageNum" Linkend="SAG.Datab.mkr.6">.</Para>
</Sect2>
<Sect2 Id="SAG.CrDT.div.7" Role="Procedure">
<Title Id="SAG.CrDT.mkr.6">To Create a Data Type Definition<IndexTerm><Primary>data types</Primary><Secondary>defining</Secondary></IndexTerm></Title>
<OrderedList>
<ListItem>
<Para>Open an existing database file or create a new one.</Para>
<Para>For more information, see the previous section,
<!--Original XRef content: '&xd2;Configuration Files for
Data Types'--><XRef Role="SectionTitle" Linkend="SAG.CrDT.mkr.5">.</Para>
</ListItem>
<ListItem>
<Para>Define the data attributes for the data type using the syntax:</Para>
<programlisting>DATA_ATTRIBUTES <Symbol Role="Variable">data_type_name</Symbol>
{
ICON <Symbol Role="Variable">image_name</Symbol>
DESCRIPTION <Symbol Role="Variable">string</Symbol>
<Symbol Role="Variable">attribute_field</Symbol>
<Symbol Role="Variable">attribute_field</Symbol>
&hellip;
}
<IndexTerm><Primary>DATA_ATTRIBUTES</Primary><Secondary>syntax</Secondary></IndexTerm>
</ProgramListing>
<Para>where:</Para>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<colspec colwidth="131*">
<colspec colwidth="397*">
<TBody>
<Row>
<Entry><Para><Emphasis>data_type_name</Emphasis></Para></Entry>
<Entry><Para>A unique name given to this data type.</Para></Entry>
</Row>
<Row>
<Entry><Para><Symbol Role="Variable">image_name</Symbol></Para></Entry>
<Entry><Para>File name or path of an icon file. Use the base name for
the file. For example, for icon files <Command>myimage.m.pm</Command> and
<Filename>myimage.t.pm</Filename>, use <Command>myimage</Command>.</Para></Entry>
</Row>
<Row>
<Entry><Para><Emphasis>attribute_field</Emphasis></Para></Entry>
<Entry><Para>Field that defines the appearance or behavior of the data
type.</Para></Entry>
</Row>
<Row>
<Entry><Para><Symbol Role="Variable">string</Symbol></Para></Entry>
<Entry><Para>Character string. The contents will be the on-item help
for the data type.</Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
<Para>See
<!--Original XRef content: '&xd2;Example of Creating a Personal Action and Data Type&xd3; on page&numsp;189'--><XRef Role="SecTitleAndPageNum" Linkend="SAG.CrDT.div.8">.</Para>
</ListItem>
<ListItem>
<Para>Define the data criteria for the data type using the syntax:</Para>
<programlisting>DATA_CRITERIA <Symbol Role="Variable">criteria_name</Symbol>
{
DATA_ATTRIBUTES_NAME <Symbol Role="Variable">data_type_name</Symbol>
<Symbol Role="Variable">criteria_field</Symbol>
<Symbol Role="Variable">criteria_field</Symbol>
&hellip;
}
<IndexTerm><Primary>DATA_CRITERIA</Primary><Secondary>syntax</Secondary></IndexTerm>
</Programlisting>
<Para>where:</Para>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<TBody>
<Row>
<Entry><Para><Emphasis>criteria_name</Emphasis></Para></Entry>
<Entry><Para>Unique name for this criteria definition</Para></Entry>
</Row>
<Row>
<Entry><Para><Emphasis>data_type_name</Emphasis></Para></Entry>
<Entry><Para>Name used in the <Filename>DATA_ATTRIBUTES</Filename> definition</Para></Entry>
</Row>
<Row>
<Entry><Para><Emphasis>criteria_field</Emphasis></Para></Entry>
<Entry><Para>Field used to define the criteria for assigning a file to this
data type</Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
<Para>See
<!--Original XRef content: '&xd2;Defining the Data Criteria for a Data Type&xd3; on page&numsp;193'--><XRef Role="SecTitleAndPageNum" Linkend="SAG.CrDT.div.14">.</Para>
</ListItem>
<ListItem>
<Para>Save the database file.</Para>
</ListItem>
<ListItem>
<Para>Create the icons for the data type.</Para>
<Para>For more information, see
<!--Original XRef content: '&xd2;Specifying the Icon Image Used for a Data Type&xd3;
on page&numsp;190'--><XRef Role="SecTitleAndPageNum" Linkend="SAG.CrDT.div.10">.</Para>
</ListItem>
<ListItem>
<Para>If necessary, create the actions listed in the <Command>ACTIONS</Command> field of the attributes
definition.</Para>
</ListItem>
<ListItem>
<Para>Double-click Reload Actions in the Desktop_Tools application group to
reload the database.</Para>
</ListItem>
</OrderedList>
</Sect2>
<Sect2 Id="SAG.CrDT.div.8">
<Title Id="SAG.CrDT.mkr.7"><?X-setsize 13.0 pt>Example of Creating a Personal Action and Data Type<IndexTerm><Primary>data types</Primary><Secondary>example</Secondary></IndexTerm><IndexTerm><Primary>personal data type and action, creating</Primary></IndexTerm></Title>
<Para>Suppose your system contains an application named <Command>xgif</Command>, which displays GIF
pictures. Ordinarily, you run the program by executing:</Para>
<ProgramListing>xgif <Symbol Role="Variable">filename</Symbol></ProgramListing>
<Para>You want to be able to display GIF pictures several ways:</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>By double-clicking a GIF data file</Para>
</ListItem>
<ListItem>
<Para>By selecting the data file and choosing the application from the Selected
menu</Para>
<OrderedList>
<ListItem>
<Para>Open a new file <Symbol Role="Variable">HomeDirectory</Symbol><Filename>/.dt/types/GifViewer.dt</Filename> for editing.</Para>
</ListItem>
<ListItem>
<Para>Type the data type definitions:</Para>
<programlisting>DATA_ATTRIBUTES Gif
{
DESCRIPTION Gif image file.
ICON GifIcon
ACTIONS View
}
DATA_CRITERIA Gif_Criteria
{
DATA_ATTRIBUTES_NAME Gif
NAME_PATTERN *.gif
}
</Programlisting>
</ListItem>
<ListItem>
<Para>Type the action definition for the GifViewer action:</Para>
<programlisting>ACTION GifViewer
{
EXEC_STRING xgif &percnt;(File)Arg_1&ldquo;Gif file to view:&rdquo;
WINDOW_TYPE NO_STDIO
DESCRIPTION Double-click or drop a file to \
start the Gif viewer.
}
</Programlisting>
<Para>Since the definition does not include an <Command>ICON</Command> field, the action will use the
system's default icon.</Para>
</ListItem>
<ListItem>
<Para>Type the following map action to connect the GifViewer action to the View
action listed in the data type definition. Use the <Filename>ARG_TYPE</Filename> field to restrict
this view action to Gif-type files.</Para>
<programlisting>ACTION View
{
ARG_TYPE Gif
TYPE MAP
MAP_ACTION GifViewer
}
</Programlisting>
</ListItem>
<ListItem>
<Para>Save the file.</Para>
</ListItem>
<ListItem>
<Para>Double-click Reload Actions in the Desktop_Tools application group to
reread the database.</Para>
</ListItem>
</OrderedList>
</ListItem>
</ItemizedList>
</Sect2>
</Sect1>
<Sect1 Id="SAG.CrDT.div.9">
<Title>Defining the Data Attributes of a Data Type<IndexTerm><Primary>DATA_ATTRIBUTES</Primary><Secondary>defining</Secondary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>attributes</Secondary></IndexTerm></Title>
<Para>The <Filename>DATA_ATTRIBUTES</Filename> definition defines the appearance and behavior of the
data type. It specifies the name of the data type, and provides the ability to
specify:</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>The File Manager icon (<Command>ICON</Command> field)</Para>
</ListItem>
<ListItem>
<Para>The double-click behavior and contents of the Selected menu (<Command>ACTIONS</Command>
field)</Para>
</ListItem>
<ListItem>
<Para>The data type's on-item help (<Command>DESCRIPTION<IndexTerm>
<Primary>DESCRIPTION field</Primary>
</IndexTerm><IndexTerm>
<Primary>data types</Primary>
<Secondary>help on</Secondary>
</IndexTerm><IndexTerm>
<Primary>help</Primary>
<Secondary>on data type</Secondary>
</IndexTerm></Command> field)</Para>
</ListItem>
</ItemizedList>
<Sect2 Id="SAG.CrDT.div.10">
<Title Id="SAG.CrDT.mkr.8">Specifying the Icon Image Used for a Data Type<IndexTerm><Primary>icons</Primary><Secondary>data types</Secondary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>icons for</Secondary></IndexTerm></Title>
<Para>Use the <Command><IndexTerm>
<Primary>ICON field</Primary>
<Secondary>for data type</Secondary>
</IndexTerm>ICON</Command> field to specify the icon used in File Manager. If you do not
specify an icon image, File Manager displays only a label.</Para>
<Para>The value of the <Command><IndexTerm>
<Primary>ICON field</Primary>
<Secondary>valid values</Secondary>
</IndexTerm>ICON</Command> field can be:</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>A<IndexTerm>
<Primary>base file name</Primary>
</IndexTerm><IndexTerm>
<Primary>icons</Primary>
<Secondary>base file name</Secondary>
</IndexTerm>
base file name.</Para>
<Para>The base file name is the name of the file containing the icon image, minus
the file-name suffixes for size (<Command>l</Command>,<Command>m</Command>, and <Command>t</Command>) and image type (<Command>bm</Command> and <Command>pm</Command>). For
example, if files are named <Filename>GameIcon.m.pm</Filename> and <Filename>GameIcon.t.pm</Filename>, use
<Command>GameIcon</Command>.</Para>
<Para>If you use the base file name, the icon files must be placed in a directory on
the icon search path:</Para>
<ItemizedList Remap="Bullet2">
<ListItem>
<Para>Personal icons: <Symbol Role="Variable">HomeDirectory</Symbol><Filename>/.dt/icons</Filename></Para>
</ListItem>
<ListItem>
<Para>System-wide icons: <Filename>/etc/dt/appconfig/icons/</Filename><Symbol Role="Variable">language</Symbol></Para>
</ListItem>
</ItemizedList>
</ListItem>
<ListItem>
<Para>An absolute path to the icon file, including the full file name.</Para>
<Para>You should use the absolute path only if the icon file is not located on the
icon search path. For example, if icon file <Filename>GameIcon.m.pm</Filename> is placed in the
directory <Filename>/doc/projects</Filename>, which is not on the icon search path, the value
of the <Command>ICON</Command> field would be <Filename>/doc/projects/GameIcon.m.pm</Filename>.</Para>
</ListItem>
</ItemizedList>
<Para><!--Original XRef content: 'Table&numsp;11&hyphen;1'--><XRef Role="CodeOrFigureOrTable" Linkend="SAG.CrDT.tbl.1"> lists icon sizes you should create and the corresponding file names.</Para>
<Table Id="SAG.CrDT.tbl.1" Frame="Topbot">
<Title Id="SAG.CrDT.mkr.9">Icon Names and Sizes for Data Type Icons</Title>
<TGroup Cols="3">
<ColSpec Colname="1" Colwidth="1.0 in">
<ColSpec Colname="2" Colwidth="1.25 in">
<ColSpec Colname="3" Colwidth="1.25 in">
<THead>
<Row>
<Entry><Para><Literal>Size in Pixels</Literal></Para></Entry>
<Entry><Para><Literal>Bitmap Name</Literal></Para></Entry>
<Entry><Para><Literal>Pixmap Name</Literal></Para></Entry>
</Row>
</THead>
<TBody>
<Row>
<Entry><Para>48 by 48</Para></Entry>
<Entry><Para><Symbol Role="Variable">name</Symbol><Filename>.l.bm</Filename></Para></Entry>
<Entry><Para><Symbol Role="Variable">name</Symbol><Filename>.l.pm</Filename></Para></Entry>
</Row>
<Row>
<Entry><Para>32 by 32</Para></Entry>
<Entry><Para><Symbol Role="Variable">name</Symbol><Filename>.m.bm</Filename></Para></Entry>
<Entry><Para><Symbol Role="Variable">name</Symbol><Filename>.m.pm</Filename></Para></Entry>
</Row>
<Row>
<Entry><Para>16 by 16</Para></Entry>
<Entry><Para><Symbol Role="Variable">name</Symbol><Filename>.t.bm</Filename></Para></Entry>
<Entry><Para><Symbol Role="Variable">name</Symbol><Filename>.t.pm</Filename></Para></Entry>
</Row>
</TBody>
</TGroup>
</Table>
</Sect2>
<Sect2 Id="SAG.CrDT.div.11">
<Title Id="SAG.CrDT.mkr.10">Associating Data Types with Actions<IndexTerm><Primary>data types</Primary><Secondary>associating with actions</Secondary></IndexTerm><IndexTerm><Primary>actions</Primary><Secondary>associating with data types</Secondary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>associating with actions</Secondary></IndexTerm></Title>
<Para>There are two ways that data types are associated with actions:</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>The <Command><IndexTerm>
<Primary>ACTIONS field</Primary>
</IndexTerm>ACTIONS</Command> field in the <Filename>DATA_ATTRIBUTES</Filename> definition lists the actions that
will appear in File Manager's Selected menu. The first action in the list is the
default (double-click) action.</Para>
</ListItem>
<ListItem>
<Para>Actions can be restricted to specified data types using the action definition's
<Filename><IndexTerm>
<Primary>ARG_TYPE field</Primary>
</IndexTerm>ARG_TYPE</Filename> field.</Para>
</ListItem>
</ItemizedList>
<Para>For example, the following data type definition creates a data type for special
&ldquo;readme&rdquo; files created by your system administrator that use the naming
convention <Filename>*.rm</Filename>.</Para>
<programlisting>DATA_ATTRIBUTES SysReadmeFile
{
ICON SysReadMe
ACTIONS Open,Respond
}
DATA_CRITERIA SysReadmeFileCriteria
{
NAME_PATTERN *.rm
DATA_ATTRIBUTES_NAME SysReadmeFile
}
</ProgramListing>
<Para>A special Respond action is defined below for the file. It opens a writable copy
of the file in Text Editor. When the file is saved and Text Editor is exited, the
file is mailed to the system administrator (mail address <Filename>sysadmin@utd</Filename>).</Para>
<programlisting>ACTION Respond
{
ARG_TYPE SysReadmeFile
EXEC_STRING /bin/sh -c 'cp &percnt;Arg_1&percnt; $HOME/readme.temp;\
chmod +w $HOME/readme.temp; \
dtpad $HOME/readme.temp; \
cat $HOME/readme.temp | \
/usr/bin/mailx sysadmin@utd; \
rm $HOME/readme.temp'
WINDOW_TYPE NO_STDIO
}
</ProgramListing>
</Sect2>
<Sect2 Id="SAG.CrDT.div.12">
<Title>Hiding Files Based on Data Type<IndexTerm><Primary>files</Primary><Secondary>hiding based on data type</Secondary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>hidden</Secondary></IndexTerm><IndexTerm><Primary>hiding files with data type</Primary></IndexTerm></Title>
<Para>If a file is an invisible data type, it never appears in File Manager.</Para>
<Para>Use the <Command>PROPERTIES</Command> field in the <Filename>DATA_ATTRIBUTES</Filename> definition to specify that
objects of this type be hidden:</Para>
<ProgramListing>PROPERTIES invisible</ProgramListing>
</Sect2>
<Sect2 Id="SAG.CrDT.div.13">
<Title>Specifying Behaviors When the File Is Manipulated</Title>
<Para>The following <Filename>DATA_ATTRIBUTES</Filename> fields are used primarily by application
programmers. They specify how files behave when the user performs various
desktop activities.</Para>
<Para>For more information, see the <Emphasis>Common Desktop Environment Programmer's Guide</Emphasis>,
which is part of the developer environment documentation.</Para>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<colspec colwidth="1.65in">
<colspec colwidth="4.08in">
<THead>
<Row>
<Entry><Para>Field</Para></Entry>
<Entry><Para>Description</Para></Entry>
</Row>
</THead>
<TBody>
<Row>
<Entry><Para><Filename>MOVE_TO_ACTION</Filename><IndexTerm><Primary>MOVE_TO_ACTION field</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>For containers such as directories. Specifies an action to
be run when a file is moved to a container of this data
type.</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>COPY_TO_ACTION</Filename><IndexTerm><Primary>COPY_TO_ACTION field</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>For containers such as directories. Specifies an action to
be run when a file is copied to a container of this data
type.</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>LINK_TO_ACTION</Filename><IndexTerm><Primary>LINK_TO_ACTION field</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>Specifies an action to be run when a file is linked to a
file of this data type.</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>IS_TEXT</Filename><IndexTerm><Primary>IS_TEXT field</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>Specifies that files of this data type contain text that can
be displayed in a text box.</Para></Entry>
</Row>
<Row>
<Entry><Para><Command>MEDIA</Command><IndexTerm><Primary>MEDIA field</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>Specifies the corresponding ToolTalk media type.</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>MIME_TYPE</Filename><IndexTerm><Primary>MIME_TYPE_MEDIA field</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>Specifies the corresponding MIME type.</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>X400_TYPE</Filename><IndexTerm><Primary>X400_TYPE field</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>Specifies the corresponding X400 type.</Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
</Sect2>
</Sect1>
<Sect1 Id="SAG.CrDT.div.14">
<Title Id="SAG.CrDT.mkr.11">Defining the Data Criteria for a Data Type<IndexTerm><Primary>data types</Primary><Secondary>criteria</Secondary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>differentiating</Secondary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>categorization criteria</Secondary></IndexTerm><IndexTerm><Primary>2</Primary></IndexTerm></Title>
<Para>The <Filename><IndexTerm>
<Primary>DATA_CRITERIA</Primary>
<Secondary>defining</Secondary>
</IndexTerm>DATA_CRITERIA</Filename> definition defines the criteria used to assign an object
type to a file or directory.</Para>
<Para>You can use the following criteria for object typing:</Para>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<colspec colwidth="99*">
<colspec colwidth="429*">
<THead>
<Row>
<Entry><Para>Criteria</Para></Entry>
<Entry><Para>Description</Para></Entry>
</Row>
</THead>
<TBody>
<Row>
<Entry><Para>File name</Para></Entry>
<Entry><Para>The file name must match a specified pattern. Use the
<Filename>NAME_PATTERN</Filename> field.<IndexTerm><Primary>NAME_PATTERN field</Primary></IndexTerm>
</Para></Entry>
</Row>
<Row>
<Entry><Para>File location</Para></Entry>
<Entry><Para>The path must match a specified pattern. Use the
<Filename>PATH_PATTERN</Filename> field.<IndexTerm><Primary>PATH_PATTERN field</Primary></IndexTerm>
</Para></Entry>
</Row>
<Row>
<Entry><Para>File contents</Para></Entry>
<Entry><Para>A specified portion of the file's contents must match
specified data. Use the <Command>CONTENT</Command> field.<IndexTerm><Primary>CONTENT field</Primary></IndexTerm>
</Para></Entry>
</Row>
<Row>
<Entry><Para>File mode</Para></Entry>
<Entry><Para>The file must possess the specified permissions (read,
write, execute, directory). Use the <Command>MODE</Command> field.<IndexTerm><Primary>MODE field</Primary></IndexTerm>
</Para></Entry>
</Row>
<Row>
<Entry><Para>Symbolic links<IndexTerm><Primary>symbolic links</Primary><Secondary>data type criteria</Secondary></IndexTerm>
</Para></Entry>
<Entry><Para>The typing is based on the file to which the object is
linked.</Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
<Para>You can use more than one criteria for a data type. However, you should not
use the <Filename>NAME_PATTERN</Filename> and <Filename>PATH_PATTERN</Filename> criteria in the same data type.</Para>
<Sect2 Id="SAG.CrDT.div.15">
<Title>Name-Based Data Types<IndexTerm><Primary>data types</Primary><Secondary>name-based</Secondary></IndexTerm><IndexTerm><Primary>name-based data types</Primary></IndexTerm></Title>
<Para>Use the <Filename>NAME_PATTERN</Filename> field to specify the naming requirement. The field
value can include the following wildcards:</Para>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<colspec colwidth="64*">
<colspec colwidth="464*">
<TBody>
<Row>
<Entry><Para><Filename>?</Filename><IndexTerm><Primary>? wildcard character</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>Matches any single character</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>*</Filename><IndexTerm><Primary>* wildcard character</Primary></IndexTerm><IndexTerm><Primary>wildcard characters in data types</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>Matches any sequence of characters (including a null string)</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>[</Filename><Symbol Role="Variable">cc</Symbol>&hellip;<Filename>]</Filename></Para></Entry>
<Entry><Para>Matches any of the characters (<Symbol Role="Variable">c</Symbol>) enclosed in brackets</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>[</Filename><Symbol Role="Variable">c</Symbol>&minus;<Symbol Role="Variable">c</Symbol><Filename>]</Filename></Para></Entry>
<Entry><Para>Matches any of the characters in the range <Symbol Role="Variable">c</Symbol> through <Symbol Role="Variable">c</Symbol></Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
<Sect3 Id="SAG.CrDT.div.16">
<Title>Examples</Title>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>The following data type definition creates a data type based on the file
name. The file name must begin with <Command>QS</Command> and end with <Filename>.doc</Filename>.</Para>
<programlisting>DATA_ATTRIBUTES QS_Doc
{
DESCRIPTION This file contains a document for the QS project.
ICON Word_Doc
ACTIONS Open
}
DATA_CRITERIA QS_Doc_Criteria
{
NAME_PATTERN QS*.doc
DATA_ATTRIBUTES_NAME QS_Doc
}
</Programlisting>
</ListItem>
<ListItem>
<Para>The following definition creates a data type for directories named <Filename>Demo_</Filename><Symbol Role="Variable">n</Symbol>
where <Symbol Role="Variable">n</Symbol> is 0 through 9.</Para>
<programlisting>DATA_ATTRIBUTES Demo_directory
{
DESCRIPTION This is a directory. Double-click to open it.
ICON Demo
ACTIONS OpenInPlace,OpenNewView
}
DATA_CRITERIA Demo_directory_criteria
{
NAME_PATTERN Demo_[0-9]
MODE d
DATA_ATTRIBUTES_NAME Demo_directory
}
</Programlisting>
</ListItem>
</ItemizedList>
</Sect3>
</Sect2>
<Sect2 Id="SAG.CrDT.div.17">
<Title>Location-Based Data Types<IndexTerm><Primary>data types</Primary><Secondary>path-based</Secondary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>location-based</Secondary></IndexTerm><IndexTerm><Primary>location-based data type</Primary></IndexTerm><IndexTerm><Primary>path-based data type</Primary></IndexTerm></Title>
<Para>Use the <Filename><IndexTerm>
<Primary>PATH_PATTERN field</Primary>
<Secondary>syntax</Secondary>
</IndexTerm>PATH_PATTERN</Filename> field to specify the path. You can use the same
wildcard characters as with <Filename>NAME_PATTERN</Filename>.</Para>
<Para>For example, the following data type uses a criteria based on path.</Para>
<programlisting>DATA_ATTRIBUTES Project_Graphics
{
DESCRIPTION Graphics file for the QS project. Double-click the \
icon to see the graphic.
ICON QSgraphics
}
DATA_CRITERIA Project_Graphics_Criteria
{
DATA_ATTRIBUTES_NAME Project_Graphics
PATH_PATTERN */projects/QS/graphics/*
}
</ProgramListing>
</Sect2>
<Sect2 Id="SAG.CrDT.div.18">
<Title>Data Types Based on Name and Location</Title>
<Para>To create a data type based on both file name and location, include the name in
the <Filename>PATH_PATTERN</Filename> value. You cannot use both <Filename>NAME_PATTERN</Filename> and
<Filename>PATH_PATTERN</Filename> in the same criteria definition.</Para>
<Sect3 Id="SAG.CrDT.div.19">
<Title>Examples</Title>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>The QS_Source_Files data type defined below applies to all files named
<Command>app</Command><Symbol Role="Variable">n</Symbol><Filename>.c</Filename>, where <Symbol Role="Variable">n</Symbol>= 1 through 9, located in subdirectories of
<Filename>*/projects/QS</Filename>.</Para>
<programlisting>DATA_ATTRIBUTES QS_Source_Files
{
&hellip;
}
DATA_CRITERIA QS_Source_Files_Criteria
{
PATH_PATTERN */projects/QS/*/app[1-9].c
DATA_ATTRIBUTES_NAME QS_Source_Files
}
</Programlisting>
</ListItem>
<ListItem>
<Para>The following data type applies to all files in the directory <Filename>/doc/project1</Filename>
named <Command>ch</Command><Symbol Role="Variable">nn</Symbol><Filename>.</Filename><Symbol Role="Variable">xxx</Symbol> where <Symbol Role="Variable">n</Symbol> is 0 through 9, and <Symbol Role="Variable">xxx</Symbol> is any three-character file-
name suffix.</Para>
<programlisting>DATA_ATTRIBUTES ChapterFiles
{
DESCRIPTION Chapter file for the project document.
ICON chapter
ACTIONS Edit,Print
}
DATA_CRITERIA Chapter_Criteria
{
PATH_PATTERN /doc/project1/ch[0-9][0-9].???
DATA_ATTRIBUTES_NAME ChapterFiles
}
</Programlisting>
</ListItem>
</ItemizedList>
</Sect3>
</Sect2>
<Sect2 Id="SAG.CrDT.div.20">
<Title Id="SAG.CrDT.mkr.12">Using File Modes as a Typing Criteria<IndexTerm><Primary>data types</Primary><Secondary>mode criteria</Secondary></IndexTerm></Title>
<Para>Use the <Command><IndexTerm>
<Primary>MODE field</Primary>
<Secondary>syntax</Secondary>
</IndexTerm>MODE</Command> field to specify the required permissions.</Para>
<Para>Mode criteria are usually used in combination with name-based, location-
based, or content-based data typing. They allow you to limit a data type to a
file or directory, or to specify the required read, write, and execute permissions.</Para>
<Para>The <Command>MODE</Command> field can include the following logical operators and characters:</Para>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<colspec colwidth="80*">
<colspec colwidth="448*">
<THead>
<Row>
<Entry><Para>Operator</Para></Entry>
<Entry><Para>Description</Para></Entry>
</Row>
</THead>
<TBody>
<Row>
<Entry><Para><Filename>!</Filename></Para></Entry>
<Entry><Para>Logical operator NOT<IndexTerm><Primary>NOT operator in MODE field</Primary></IndexTerm>
</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>&amp;</Filename></Para></Entry>
<Entry><Para>Logical operator AND<IndexTerm><Primary>AND operator in MODE field</Primary></IndexTerm>
</Para></Entry>
</Row>
<Row>
<Entry><Para>|</Para></Entry>
<Entry><Para>Logical OR<IndexTerm><Primary>OR operator in MODE field</Primary></IndexTerm>
</Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<colspec colwidth="84*">
<colspec colwidth="444*">
<THead>
<Row>
<Entry><Para>Character</Para></Entry>
<Entry><Para>Description</Para></Entry>
</Row>
</THead>
<TBody>
<Row>
<Entry><Para><Command>f</Command><IndexTerm><Primary>file, data type criteria</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>The data type applies only to files</Para></Entry>
</Row>
<Row>
<Entry><Para><Command>d</Command><IndexTerm><Primary>directory</Primary><Secondary>datatype criteria</Secondary></IndexTerm>
</Para></Entry>
<Entry><Para>The data type applies only to directories</Para></Entry>
</Row>
<Row>
<Entry><Para><Command>r</Command></Para></Entry>
<Entry><Para>The file is readable by any user</Para></Entry>
</Row>
<Row>
<Entry><Para><Command>w</Command><IndexTerm><Primary>read-only data type criteria</Primary></IndexTerm><IndexTerm><Primary>data types</Primary><Secondary>read-only</Secondary></IndexTerm>
</Para></Entry>
<Entry><Para>The file is writable by any user</Para></Entry>
</Row>
<Row>
<Entry><Para><Command>x</Command><IndexTerm><Primary>data types</Primary><Secondary>executable</Secondary></IndexTerm><IndexTerm><Primary>executable file, data type criteria</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>The file is executable by any user</Para></Entry>
</Row>
<Row>
<Entry><Para><Command>l</Command><IndexTerm><Primary>link, data type criteria</Primary></IndexTerm>
</Para></Entry>
<Entry><Para>The file is a link</Para></Entry>
</Row>
<Row>
<Entry><Para><Command>u</Command>
</Para></Entry>
<Entry><Para>The file is set-uid</Para></Entry>
</Row>
<Row>
<Entry><Para><Command>g</Command>
</Para></Entry>
<Entry><Para>The file is set-gid</Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
<Para>The default for a particular criterion is that the mode does not matter.</Para>
<Sect3 Id="SAG.CrDT.div.21">
<Title>Examples</Title>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>The following mode fields restrict the data type as described:</Para>
<InformalTable>
<TGroup Cols="2" colsep="0" rowsep="0">
<colspec colwidth="63*">
<colspec colwidth="465*">
<TBody>
<Row>
<Entry><Para><Filename>f&amp;!w</Filename></Para></Entry>
<Entry><Para>Read-only files</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>!w</Filename></Para></Entry>
<Entry><Para>Read-only files and directories</Para></Entry>
</Row>
<Row>
<Entry><Para><ComputerOutput>f&amp;x</ComputerOutput></Para></Entry>
<Entry><Para>Executable files</Para></Entry>
</Row>
<Row>
<Entry><Para><Filename>f&amp;w&amp;x</Filename></Para></Entry>
<Entry><Para>Files that are both writable and executable</Para></Entry>
</Row>
<Row>
<Entry><Para>x|!w</Para></Entry>
<Entry><Para>Files that are executable or read-only</Para></Entry>
</Row>
</TBody>
</TGroup>
</InformalTable>
</ListItem>
<ListItem>
<Para>The following data type definition creates a data type for read-only, non-
executable files whose file names follow the naming convention <Filename>*.doc</Filename>. It
assumes that a View action has been defined for the data type.</Para>
<programlisting>DATA_ATTRIBUTES ReadOnlyDocument
{
ICON read_only
DESCRIPTION This document is not writable. Double-clicking \
runs your editor with a read-only copy of the \
file.
ACTIONS View
}
DATA_CRITERIA ReadOnlyDocument_Criteria
{
NAME_PATTERN *.doc
MODE !d&amp;!x&amp;!w
DATA_ATTRIBUTES_NAME ReadOnlyDocument
}
</Programlisting>
</ListItem>
</ItemizedList>
</Sect3>
</Sect2>
<Sect2 Id="SAG.CrDT.div.22">
<Title>Content-Based Data Typing<IndexTerm><Primary>data types</Primary><Secondary>content-based</Secondary></IndexTerm><IndexTerm><Primary>content-based data type</Primary></IndexTerm></Title>
<Para>Use the <Command><IndexTerm>
<Primary>CONTENT field</Primary>
</IndexTerm>CONTENT</Command> field to specify data typing based on the content of the file.
Content-based data typing can be used in combination with name- or location-
based data typing.</Para>
<Para>The typing can be based on either string or numeric content for files. The first
byte in the file is numbered 0.</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>For string content of a file, use the syntax:</Para>
<programlisting>CONTENT <Symbol Role="Variable">starting_byte</Symbol> string <Symbol Role="Variable">string</Symbol></programlisting>
</ListItem>
<ListItem>
<Para>For number content of a file, use the syntax:</Para>
<programlisting>CONTENT <Symbol Role="Variable">starting_byte</Symbol> byte <Symbol Role="Variable">number</Symbol>
CONTENT <Symbol Role="Variable">starting_byte</Symbol> short <Symbol Role="Variable">number</Symbol>
CONTENT <Symbol Role="Variable">starting_byte</Symbol> long <Symbol Role="Variable">number</Symbol>
</Programlisting>
</ListItem>
<ListItem>
<Para>For the contents of a directory, use the syntax:</Para>
<programlisting>CONTENT 0 filename &ldquo;<Symbol Role="Variable">file_name</Symbol>&rdquo;</programlisting>
<Para>Use standard C notation for octal (leading <literal>0</literal>) and hexidecimal (leading <literal>0X</literal>)
numbers.</Para>
</ListItem>
</ItemizedList>
<Note>
<Para>Use of content-based data typing will result in slower system
performance. Wherever possible, use name- and location-based typing instead.</Para>
</Note>
<Para>For example, the following data type, Writable_Wingz, applies to all files with
write permission containing the string <Command>WNGZ</Command> at the beginning of the file.</Para>
<programlisting>DATA_ATTRIBUTES Writable_Wingz
{
&hellip;
}
DATA_CRITERIA Writable_Wingz_Criteria
{
CONTENT 0 string WNGZ
MODE w&amp;!d
DATA_ATTRIBUTES_NAME Writable_Wingz
}
</ProgramListing>
</Sect2>
<Sect2 Id="SAG.CrDT.div.23" Role="Procedure">
<Title Id="SAG.CrDT.mkr.13">To Create a Data Type with Several Independent Criteria<IndexTerm><Primary>data types</Primary><Secondary>multiple criteria</Secondary></IndexTerm></Title>
<Para>You can create a data type with several independent criteria&mdash;that is, the file is
assigned to the data type if it meets <Emphasis>either</Emphasis> (or both) of the criteria.</Para>
<OrderedList>
<ListItem>
<Para>Create the <Filename>DATA_ATTRIBUTES</Filename> definition for the data type.</Para>
</ListItem>
<ListItem>
<Para>Create a <Filename><IndexTerm>
<Primary>DATA_CRITERIA</Primary>
<Secondary>multiple</Secondary>
</IndexTerm>DATA_CRITERIA</Filename> definition for each criteria.</Para>
<Para>Use the <Filename>DATA_ATTRIBUTES_NAME</Filename> field to connect each criteria to the same
<Filename>DATA_ATTRIBUTES</Filename> definition.</Para>
</ListItem>
</OrderedList>
<Para>For example, the following definitions create the Mif data type. Typing is based
on name or content.</Para>
<programlisting>DATA_ATTRIBUTES Mif
{
ICON Frame
ACTION_LIST Open,Print
}
DATA_CRITERIA Mif_Name_Criteria
{
DATA_ATTRIBUTES_NAME Mif
NAME_PATTERN *.mif
}
DATA_CRITERIA Mif_Content_Criteria
{
DATA_ATTRIBUTES_NAME Mif
CONTENT 1 string MIFFile
}
</ProgramListing>
</Sect2>
</Sect1>
<Sect1 Id="SAG.CrDT.div.24">
<Title>Creating Localized Data Types<IndexTerm><Primary>data types</Primary><Secondary>localized</Secondary></IndexTerm><IndexTerm><Primary>localization</Primary><Secondary>data type</Secondary></IndexTerm></Title>
<Para>The search path for data types includes language-dependent locations. The
desktop uses the value of<IndexTerm>
<Primary>LANG variable</Primary>
<Secondary>effect on data types</Secondary>
</IndexTerm>
LANG to determine the locations searched for data
type definitions.</Para>
<Sect2 Id="SAG.CrDT.div.25">
<Title>Locations for Localized Data Types</Title>
<Para>Localized data type definitions must be placed in the proper language-
dependent directories along the actions search path.</Para>
<Para>The default search path is:</Para>
<ItemizedList Remap="Bullet1">
<ListItem>
<Para>Personal actions: <Symbol Role="Variable">HomeDirectory</Symbol><Filename>/.dt/types</Filename></Para>
</ListItem>
<ListItem>
<Para>System-wide actions: <Filename>/etc/dt/appconfig/types/</Filename><Symbol Role="Variable">language</Symbol></Para>
</ListItem>
<ListItem>
<Para>Built-in actions: <Filename>/usr/dt/appconfig/types/</Filename><Symbol Role="Variable">language</Symbol></Para>
</ListItem>
</ItemizedList>
</Sect2>
<Sect2 Id="SAG.CrDT.div.26" Role="Procedure">
<Title>To Localize a Data Type</Title>
<OrderedList>
<ListItem>
<Para>Create a file in the appropriate language-dependent directory (for example,
in <Filename>/etc/dt/appconfig/types/japanese</Filename>).</Para>
</ListItem>
<ListItem>
<Para>Copy the data type definition to the language-dependent configuration file.</Para>
</ListItem>
<ListItem>
<Para>Localize one or more fields in the data type definition.</Para>
</ListItem>
</OrderedList>
</Sect2>
</Sect1>
</Chapter>
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