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Diffstat (limited to 'Mac/Demo')
-rw-r--r-- | Mac/Demo/building.html | 99 | ||||
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-rw-r--r-- | Mac/Demo/example2.html | 40 | ||||
-rw-r--r-- | Mac/Demo/index.html | 33 | ||||
-rw-r--r-- | Mac/Demo/plugins.html | 47 | ||||
-rw-r--r-- | Mac/Demo/using.html | 27 |
7 files changed, 115 insertions, 139 deletions
diff --git a/Mac/Demo/building.html b/Mac/Demo/building.html index c27de03..eb64963 100644 --- a/Mac/Demo/building.html +++ b/Mac/Demo/building.html @@ -54,7 +54,7 @@ Neeracher. The original CWGUSI is obtainable from <A HREF="ftp://sunsite.cnlab-switch.ch/software/platform/macos/src"> ftp://sunsite.cnlab-switch.ch/software/platform/macos/src</A>. -At the moment Python is built with a slightly modified version of GUSI 1.8.1fc2, +At the moment Python is built with a slightly modified version of GUSI, these modifications are available in folder <code>Python:Mac:GUSI-mods</code>. </UL> @@ -121,32 +121,31 @@ Top-level-folder: zlib libpng gdbm + MoreFiles 1.4.3 (not needed by Python, only by tcl/tk) Python Tcl/Tk Folder tcl8.0 tk8.0 - MoreFiles 1.4.3 Waste 1.2 distribution (if you want waste) </PRE> First build GUSI. If you didn't get the python-specific GUSI you have to move the files from the "CWGUSI-mods" to the right -place in the CWGUSI distribution folder. Build the MSL target for your -platform (MSLGUSI PPC, MSLGUSI 68K or MSLGUSI CFM68K). <p> +place in the CWGUSI distribution folder. Build the MSL version for your +platform (ppc, 68k, cfm68k). <p> Next, in <code>MoreFiles</code>, <code>libjpeg</code>, <code>pbmplus</code>, <code>zlib</code>, <code>libpng</code>, <code>gdbm</code>, -and<code>libtiff</code> you build all projects. The projects are in "mac" +and<code>libtiff</code> you build all projects. Sometimes the projects are in "mac" subfolders, sometimes they are in the main folder. Tcl/tk is a special case, see below. Of course, if you are only interested in one of static 68K, CFM68K or PPC you can skip building the other libraries. <H2><A NAME="tcltk">Building Tcl/Tk</H2> -You need to make some minor changes to the Tcl/Tk 8.0 beta2 -distribution. You should make the CW Pro projects TclLibraries.¹ and -TkLibraries.¹ (in the mac subfolders). +You need to make some minor changes to the Tcl/Tk 8.0 +distribution. You should make the CW Pro projects (in the mac subfolders). <UL> <LI> There are no cfm68k targets. You make these by copying the 68k targets, @@ -191,14 +190,19 @@ the Python source tree. At the top level, we find the following folders: <DL> -<DT> build.mac -<DD> This is where you build the PPC, CFM68K and Fat shared libraries, -interpreter and applet framework. The Fat versions, which are derived -from the other two, are deposited in the parent folder. +<DT> build.mac68k.stand +<DD> This is where you build static 68K interpreters. -<DT> build.macstand -<DD> This is where you build static 68K interpreters, and possibly static -PPC interpreters (but you probably won't need those). +<DT> build.mac68k.shared +<DD> This is where you build the CFM68K shared library, interpreter +and applet framework. + +<DT> build.macppc.shared +<DD> This is where you build the PPC shared library, interpreter and +applet framework. You can also build the fat applet framework here. + +<DT> build.macppc.stand +<DD> This is where you build a nonshared PPC interpreter (optional). <DT> Demo <DD> Demo programs that are not Mac-specific. Some of these may not @@ -307,11 +311,11 @@ use your imagination to work them out. If you have all the optional libraries mentioned <A HREF="#optional">above</A> loaded buildin Python for 68K macs is a -breeze: open the project in the folder <code>build.mac68k.stand</code> -and build it. Do <em>not</em> run it yet, this will possibly result -in a garbled preferences file. <p> +breeze: open the project in the folder <code>build.macstand</code> and +build the 68K target. Do <em>not</em> run it yet, this will possibly +result in a garbled preferences file. <p> -First remove the <code>Python preferences</code> file from your +First remove the <code>Python XXX preferences</code> file from your preference folder, only if you had an older version of Python installed. (this is also what you do if you did not heed the last sentence of the preceeding paragraph). Next, move the interpreter to @@ -320,35 +324,31 @@ create a correct initial preferences file. You are now all set, and your tree should be completely compatible with a binary-only distribution. Read the release notes (<code>Relnotes-somethingorother</code>) and -<code>ReadMeOrSuffer</code> in the <code>Mac</code> folder. - -<H2>Building the CFM68K interpreter</H2> +<code>ReadMe</code> in the <code>Mac</code> folder. -Building the CFM68K interpreter is as almost exactly the same as building -the PPC interpreter, with the exception that you should read "CFM68K" -for "PPC" every time. Continue reading with the next section. - -<H2>Building the PPC interpreter</H2> +<H2>Building the PPC and CFM68K interpreter</H2> First you build the interpreter, core library and applet skeleton in -folder <code>build.macppc.stand</code>. The order to build things is -the following: +folder <code>build.mac</code>. The projects are all linked together, so +building the fat targets in <code>Python.prj</code> and +<code>PythonApplet.prj</code> will result in everything being built. The +resulting applications and fat shared library are deposited in the main +Python folder. For completeness sake here is a breakdown of the +projects: <DL> -<DT> PythonCorePPC +<DT> PythonCore (with subprojects PythonCorePPC and PythonCoreCFM68K) <DD> The shared library that contains the bulk of the interpreter and its resources. It is a good idea to immedeately put an alias to this shared library in the <code>Extensions</code> folder of your system folder. Do exactly that: put an <em>alias</em> there, copying or -moving the file will cause you grief later. +moving the file will cause you grief later if you rebuild the library and +forget to copy it to the extensions folder again. -<DT> PythonPPC +<DT> Python <DD> The interpreter. This is basically a routine to call out to the -shared library. Do -<em>not</em> run it yet, this will possibly result in a garbled -preferences file. See the section below on rebuilding .exp files if you -get funny linker errors. <p> +shared library. <p> <DT> PythonAppletPPC <DD> The applet skeleton application. Very similar to @@ -359,29 +359,23 @@ applet. <p> </DL> -After creating the alias to <code>PythonCorePPC</code> you should move -<code>PythonPPC</code> to the main Python folder. Next you remove any old +After creating the alias to <code>PythonCore</code> you remove any old <code>Python XXX Preferences</code> file from the <code>Preferences</code> folder (if you had python installed on your system before) and run the interpreter once -to create the correct preferences file. You should also make an alias -<code>PythonApplet</code> pointing to <code>PythonAppletPPC</code> in the main -Python folder. (again: making an alias is preferrable to copying or moving the -file, since this will cause the correct file to be used if you ever rebuild -PythonAppletPPC). <p> +to create the correct preferences file. <p> Next, you have to build the extension modules in the -<code>PlugIns</code> folder. Open each project with <code>.ppc</code> in the -name and build it. After all +<code>PlugIns</code> folder. The <code>PlugIns.ppc</code> project has all the +other projects as subprojects and builds everything. After all the dynamically loaded modules are built you have to create a number of aliases: some modules live together in a single dynamic -library. Run the <code>MkPluginAliases.py</code> script from +library. Run the <code>ConfigurePython.py</code> script from <code>Mac:scripts</code> to create the aliases. <p> Finally, you must build the standard applets: -<code>EditPythonPrefs</code>, <code>mkapplet</code>, etc. This is +<code>EditPythonPrefs</code>, <code>BuildApplet</code>, etc. This is easiest done with the <code>fullbuild</code> script from -<code>Mac:scripts</code>. Answer <em>no</em> to all questions except -when it asks whether to build the applets. <p> +<code>Mac:scripts</code>. <p> <BLOCKQUOTE> Actually, the <code>fullbuild</code> script can be used to build @@ -392,13 +386,10 @@ place and use that to run fullbuild, or use the standalone PPC python for this. I tend to keep a standalone interpreter in a safe place for this use only. <p> -Using fullbuild is also the only easy way to buid the fat application and applet. -See the fullbuild source for details on how to build the fat binaries "by hand". - </BLOCKQUOTE> You are all set now, and should read the release notes and -<code>ReadMeOrSuffer</code> file from the <code>Mac</code> folder. +<code>ReadMe</code> file from the <code>Mac</code> folder. <H2>Rebuilding <code>.exp</code> files for PPC and CFM68K</H2> @@ -437,7 +428,7 @@ complete Python. Take the binary distribution, add folders <code>Include</code>, <code>Mac:Include</code> and <code>Mac:mwerks</code> from the source distribution and you should be all set. A template for a dynamic module can be found in -<code>xx.ppc.µ</code> or <code>xx.CFM68K.µ</code>. +<code>xx.prj</code>. <LI> The Python shared library architecture is a variant of the architecture described as "application with shared libraries and dropins" in the MetroWerks diff --git a/Mac/Demo/embed.html b/Mac/Demo/embed.html index 934619b..81a91ab 100644 --- a/Mac/Demo/embed.html +++ b/Mac/Demo/embed.html @@ -28,9 +28,9 @@ user pression the option-key will not result in an interactive dialog. You can, however, set startup options on your program in the same way as you do for applets, by dragging your application to <code>EditPythonPrefs</code>. <p> -The most logical way to embed Python is to link it against the shared library -<code>PythonCorePPC</code> or <code>PythonCoreCFM68K</code>. An example project -and source can be found in the <a href="embed">embed</a> folder. +The most logical way to embed Python is to link it against the shared +library <code>PythonCore</code>. An example project and source can be +found in the <a href="embed">embed</a> folder. </BODY> </HTML> diff --git a/Mac/Demo/example0.html b/Mac/Demo/example0.html index c0336a5..4d78540 100644 --- a/Mac/Demo/example0.html +++ b/Mac/Demo/example0.html @@ -15,7 +15,7 @@ on different machines, with one exception: <li> Unix systems terminate lines with the "linefeed" character, <code>0x0a</code>, <li> Macintoshes terminate lines with the "carriage return" character, <code>0x0d</code> and -<li> MSDOS systems terminate lines with first a carriage return and then a linefeed. +<li> MSDOS and Windows terminate lines with first a carriage return and then a linefeed. </ul> Let us have a look at the program. The first interesting statement in the main diff --git a/Mac/Demo/example2.html b/Mac/Demo/example2.html index 936cfad..84c766f 100644 --- a/Mac/Demo/example2.html +++ b/Mac/Demo/example2.html @@ -10,10 +10,7 @@ applets, standalone applications written in Python. <A HREF="example2/InterslipControl-2.py">Source</A> and resource file (in binary and <A HREF="example2/InterslipControl-2.rsrc.hqx">BinHex</A> form for downloading) are available in the folder <A -HREF="example2">example2</A>. If you want to run the program on your -machine and you have Python 1.3 or earlier you will also need a new copy of <A -HREF="update-to-1.3/FrameWork.py">FrameWork.py</A>, which has been -updated since the 1.3 release. <p> +HREF="example2">example2</A>. <p> Again, we start with ResEdit to create our dialogs. Not only do we want a main dialog this time but also an "About" dialog, and we @@ -31,7 +28,7 @@ off, there's the standard BNDL combo. I've picked 'PYTi' as signature for the application. I tend to pick PYT plus one lower-case letter for my signatures. The finder gets confused if you have two applications with the same signature. This may be due to some incorrectness on the -side of "mkapplet", I am not sure. There is one case when you +side of "BuildApplet", I am not sure. There is one case when you definitely need a unique signature: when you create an applet that has its own data files and you want the user to be able to start your applet by double-clicking one of the datafiles. <p> @@ -135,26 +132,27 @@ nothing has changed. <p> <H2><IMG SRC="html.icons/mkapplet.gif"><A NAME="applets">Creating applets</A></H2> -Now, if you have a PowerPC Macintosh, let us try to turn the python -script into an applet, a standalone application. Actually, -"standalone" is probably not the correct term here, since an applet -does still depend on a lot of the python environment: the PythonCore -shared library, the Python Preferences file, the python Lib folder and -any other modules that the main module depends on. It is possible to -get rid of all these dependencies except for the dependency on -PythonCore, but at the moment that is still quite difficult so we will -ignore that possibility for now. By standalone we mean here that the -script has the look-and-feel of an application, including the ability -to have its own document types, be droppable, etc. <p> +Now let us try to turn the python script into an applet, a standalone +application. This will <em>not</em> work if you have the "classic 68k" +Python distribution, only if you have the cfm68k or PPC distribution. +Actually, "standalone" is probably not the correct term here, since an +applet does still depend on a lot of the python environment: the +PythonCore shared library, the Python Preferences file, the python Lib +folder and any other modules that the main module depends on. It is +possible to get rid of all these dependencies except for the dependency +on PythonCore, but at the moment that is still quite difficult so we +will ignore that possibility for now. By standalone we mean here that +the script has the look-and-feel of an application, including the +ability to have its own document types, be droppable, etc. <p> The easiest way to create an applet is to take your source file and -drop it onto "mkapplet" (normally located in the Python home -folder). This will create an applet with the same name as your python +drop it onto "BuildApplet", located in the Python home +folder. This will create an applet with the same name as your python source with the ".py" stripped. Also, if a resource file with the same name as your source but with ".rsrc" extension is available the resources from that file will be copied to your applet too. If there is no resource file for your script a set of default resources will be -used, and the applet will have the default creator 'PYTa'. The latter +used, and the applet will have the default creator 'Pyt0'. The latter also happens if you do have a resource file but without the BNDL combo. <A NAME="no-bundle">Actually</A>, for our example that would have been the most logical solution, since our applet does not have @@ -164,8 +162,8 @@ having the custom icon, but that could have been done by pasting an icon on the finder Info window, or by providing an custon icon in your resource file and setting the "custom icon" finder bit. <p> -If you need slightly more control over the mkapplet process you can -double-click mkapplet, and you will get dialogs for source and +If you need slightly more control over the BuildApplet process you can +double-click it, and you will get dialogs for source and destination of the applet. The rest of the process, including locating the resource file, remains the same. <p> diff --git a/Mac/Demo/index.html b/Mac/Demo/index.html index ba1500d..4301fa8 100644 --- a/Mac/Demo/index.html +++ b/Mac/Demo/index.html @@ -19,26 +19,17 @@ HREF="http://www-acs.ucsd.edu/~jstrout/python/"> http://www-acs.ucsd.edu/~jstrout/python/</A>. <P> -The <a href="http://www.python.org/doc/lib/Top.html">Python Library Reference</a> contains a section on -<a href="http://www.python.org/doc/lib/Macintosh-Specific-Services.html">Macintosh-specific modules</a> -that you should also read. Documentation is also available in PostScript and other -forms, see the <a href="http://www.python.org/doc/">documentation</a> section -on the webserver. <p> - -Some of these documents were actually written while I was working on a "real" -project: creating a single-button application that will allow my -girlfriend to read her mail (which actually pass thry <EM>my</EM> -mailbox, so I get to read it too, but don't tell her:-) without her -having to worry about internet connections, unix commands, etc. The -application, when finished, will connect to the net using InterSLIP, -start a (pseudo-)POP server on unix using rsh and use AppleScript to -tell Eudora to connect to that server and retrieve messages. <p> - -These examples were all built using Python 1.3.3, which can be downloaded -from <a href="ftp://ftp.cwi.nl/pub/jack/python/mac">ftp.cwi.nl, directory -/pub/jack/python/mac</a>, and possibly from the <a href="ftp://ftp.python/org"> -ftp.python.org</a> server and its mirrors as well. Some examples may work -with earlier versions of Python, some will definitely not. +The <a href="http://www.python.org/doc/lib/Top.html">Python Library +Reference</a> contains a section on <a +href="http://www.python.org/doc/lib/Macintosh-Specific-Services.html">Macintosh-specific +modules</a> that you should also read. Documentation is also available +in PostScript and other forms, see the <a +href="http://www.python.org/doc/">documentation</a> section on the +webserver. <p> + +Some of these documents were actually written a long time ago and have seen +little maintainance, so use with care. <p> + <H2>Table of contents</H2> <UL> @@ -133,5 +124,5 @@ documentation. <p> <HR> <A HREF="http://www.cwi.nl/~jack">Jack Jansen</A>, -<A HREF="mailto:jack@cwi.nl">jack@cwi.nl</A>, 09-September-1996. +<A HREF="mailto:jack@cwi.nl">jack@cwi.nl</A>, 27-Aug-97. </BODY></HTML> diff --git a/Mac/Demo/plugins.html b/Mac/Demo/plugins.html index 465603c..7d43e72 100644 --- a/Mac/Demo/plugins.html +++ b/Mac/Demo/plugins.html @@ -22,21 +22,19 @@ was compiled with MPW C) assuming you have managed to get Python to compile under your development environment, but the step-by-step character of this document will be lost. <p> -Next, you need a <A HREF="http://www.python.org/python/Sources.html">python -source distribution</A>. There is a <A -HREF="update-to-1.3/into-PlugIns.hqx"> fixed project template</A> that -you also need if you are going to make a dynamically loaded -module. For PowerPC development you can actually get by without a full -source distribution, using the PPC Development distribution (if I have -gotten around to putting it together by the time you read -this). You'll also need a functional python interpreter, and the -Modulator program (which lives in <CODE>Tools:Modulator</CODE> in the -standard source distribution). You may also find that Guido's <A +Next, you need a <A +HREF="http://www.python.org/python/Sources.html">python source +distribution</A>. For PowerPC and cfm68k development you can actually +get by without a full source distribution, using the Development +distribution (if I have gotten around to putting it together by the time +you read this). You'll also need a functional python interpreter, and +the Modulator program (which lives in <CODE>Tools:Modulator</CODE> in +the standard source distribution). You may also find that Guido's <A HREF="http://www.python.org/doc/ext/ext.html">Extending and embedding the Python interpreter</A> is a very handy piece of documentation. I will skip lots of details that are handled there, like complete -descriptions of <CODE>Py_ParseTuple</CODE> and such utility routines, -or the general structure of extension modules. <p> +descriptions of <CODE>Py_ParseTuple</CODE> and such utility routines, or +the general structure of extension modules. <p> <H2>InterSLIP and the C API to it</H2> @@ -95,11 +93,8 @@ skeleton module into a real module you would overwrite your hand-written code. By calling the dummy module a different name you have to make <EM>two</EM> mistakes in a row before you do this. <p> -On systems with the Tk windowing API for Python (currently only -unix/X11 systems, but mac support may be available when you read this) -this is extremely simple. It is actually so simple that it pays to -create the skeleton module under unix and ship the code to your -mac. You start modulator and are provided with a form in which you +If you installed Tk support when you installed Python this is extremely +simple. You start modulator and are provided with a form in which you fill out the details of the module you are creating. <p> <IMG SRC="html.icons/modulator.gif" ALIGN=CENTER><p> @@ -161,7 +156,7 @@ compile, and that if you import it in a python program you will see all the methods. It is, of course, not yet complete in a functional way... <p> -<H2>Adding a module to 68K Python</H2> +<H2>Adding a module to Classic 68K Python</H2> What you do now depends on whether you're developing for PowerPC (or for CFM68K) or for "traditional" mac. For a traditional 68K Python, @@ -206,18 +201,16 @@ your projects will all be smaller). Moreover, you can distribute a plugin module by itself without haveing to distribute a complete python interpreter. <p> -Go to the "PlugIns" folder and copy the files xxmodule.µ, -xxmodule_config.h and xxmodule.µ.exp to interslipmodule.µ, -interslipmodule_config.h and interslipmodule.µ.exp, respectively. Edit -interslipmodule.µ.exp and change the name of the exported routine -"initxx" to "initinterslip". Open interslipmodule.µ with CodeWarrior, +Go to the "PlugIns" folder and copy the files xx.prj, +and xx.prj.exp to interslipmodule.prj and +interslipmodule.prj.exp, respectively. Edit +interslipmodule.prj.exp and change the name of the exported routine +"initxx" to "initinterslip". Open interslipmodule.prj with CodeWarrior, remove the file xxmodule.c and add interslipmodule.c and make a number of adjustments to the preferences: <UL> -<LI> in C/C++ language, set the header file to interslipmodule_config.h -<LI> in PPC linker, set the entry point to "initinterslip" -<LI> in PPC PEF, set the fragment name to "interslipmodule" -<LI> in PPC Project, set the output file name to "interslipmodule.slb". +<LI> in PPC target, set the output file name to "interslipmodule.pcc.slb", +<LI> in cfm68k target set the output file name to "interslipmodule.cfm68k.slb". </UL> Next, compile and link your module, fire up python and do the same tests as for 68K python. <p> diff --git a/Mac/Demo/using.html b/Mac/Demo/using.html index f440273..bb2fdd5 100644 --- a/Mac/Demo/using.html +++ b/Mac/Demo/using.html @@ -1,9 +1,9 @@ <HTML> <HEAD> -<TITLE>Using Python 1.4 on the Macintosh</TITLE> +<TITLE>Using Python 1.5 on the Macintosh</TITLE> </HEAD> <BODY> -<H1>Using Python 1.4 on the Macintosh</H1> +<H1>Using Python 1.5 on the Macintosh</H1> <HR> This document is an introduction to using Python on the Apple @@ -42,8 +42,8 @@ interpreter in interactive mode by double-clicking its icon: <p> This should give you a text window with an informative version string and a prompt, something like the following: <PRE> -Python 1.4 (Oct 27 1996) [CW PPC w/GUSI] -Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam +Python 1.5 (#0 Aug 27, 1997) [CW PPC w/GUSI MSL] +Copyright 1991-1997 Stichting Mathematisch Centrum, Amsterdam >>> </PRE> The version string tells you the version of Python, whether it was @@ -189,6 +189,8 @@ The options modify the interpreters behaviour in the following way: exiting) after a script has terminated normally, <li> for every module imported a line is printed telling you where the module was loaded from, +<li> do not print the values of expressions executed as statements in +an interactive python (obsolete), <li> do not buffer stdout and stderr, <li> print some debugging output during the parsing phase, <li> keep the output window open when a script terminates. @@ -279,9 +281,9 @@ The python interpreter keeps a preferences file in the standard location in the system folder. In this preferences file it remembers the default module search path and the default settings for the runtime options. The preferences are settable via -<CODE>EditPythonPrefs</CODE>. For PPC python this is a standalone +<CODE>EditPythonPrefs</CODE>. For PPC/cfm68k python this is a standalone program living in the main Python folder, for 68K python it is a -script in the <CODE>Scripts</CODE> folder. <p> +script in the <CODE>Mac:Scripts</CODE> folder. <p> The interface to edit the preferences is rather clunky for the current release. <p> @@ -310,8 +312,8 @@ An applet is a fullblown application written in Python, similar to an AppleScript applet (and completely different from a Java applet). Applets are currently supported on PowerPC macintoshes and on 68K macintoshes if you use the CFM68K version of the interpreter, -and are created using the <CODE>mkapplet</CODE> program. You create an -applet by dropping the python source script onto mkapplet. +and are created using the <CODE>BuildApplet</CODE> program. You create an +applet by dropping the python source script onto BuildApplet. <a href="example2.html">Example 2</a> is a more involved applet with its own resource file, etc. <p> @@ -320,7 +322,7 @@ it is not self-sufficient, so distributing it to a machine without an installed Python interpreter will not work: it needs the shared python execution engine <CODE>PythonCore</CODE>, and probably various modules from the Lib and PlugIns folders. Distributing it to a machine that does -have a Python system (of the same release and architecture) will work. <p> +have a Python system will work. <p> <h2>Customizing applets</h2> @@ -394,10 +396,11 @@ set) the end-of-line convention used in a file. <p> Python attempts to keep its preferences file up-to-date even when you move the Python folder around, etc. If this fails the effect will be that Python cannot start or, worse, that it does work but it cannot find -any standard modules. In this case, start Python examine <code>sys.path</code>. +any standard modules. In this case, start Python and examine <code>sys.path</code>. If it is incorrect remove any Python preferences file from the system folder and start the interpreter <em>while the interpreter sits in the main -Python folder</em>. This will regenerate the preferences file. <p> +Python folder</em>. This will regenerate the preferences file. You may also +have to run the ConfigurePython applet again. <p> <h2>Where to go from here</h2> @@ -405,7 +408,7 @@ The next section to check out is the <a href="index.html">annotated sample progr <HR> <A HREF="http://www.cwi.nl/~jack">Jack Jansen</A>, -<A HREF="mailto:jack@cwi.nl">jack@cwi.nl</A>, 20-Nov-1996. +<A HREF="mailto:jack@cwi.nl">jack@cwi.nl</A>, 27-Aug-1997. </BODY> </HTML> |