Whether youve loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. Go to about click on build 7 times now come again from home then you will see developer options. A tclbased toolkit for automating interactive programs. Other expect modules are based either on a c extension using don libes expect library, or on various pythonbased event loops. Most of us are a little stumped here, i think, because tcl programming mostly doesnt require structured debugging tools like that. A tcl based toolkit for automating interactive programs don libes download bok. A description of debugging techniques could easily fill an entire book or moreand rightfully so. Openocd open onchip debugger the open onchip debugger provides jtagswd access from gdb or directly with tcl scripts to proc. The command info level we can ask the actual level number. Pexpect is in the spirit of don libes expect, but pexpect is pure python. The requirements nummer 1 2 4 and 5 are simple to implement with core tcl. Rapidly deploy tcl applications to a broad range of platforms, as readytorun executables starkits or starpacks. Define tcldebug by websters dictionary, wordnet lexical database, dictionary of computing, legal dictionary, medical dictionary, dream dictionary. It can be used to a automate setup scripts for duplicating software package installations on different servers.
In a downtoearth and humorous style, he provides numerous examples of challenging realworld applications and how they can be. A tcl based toolkit for automating interactive programs nutshell handbooks libes, don on. In exploring expect, he provides a comprehensive tutorial on all of expects features, allowing you to put it immediately to work on your problems. For a summary of debugger commands, see the debugger command list.
A code walkthrough, proceedings of the 21st annual trenton computer. He works in the manufacturing systems integration division, which performs research on software integration methods, creating custom software that implements draft standards and serves as an interface to other components provided by separate vendors. Expect a tool for automating interactive programs don. Don libes is a computer scientist at nist performing computer science research on interoperability.
Youll also find the iotty and iostty perl modules here. Chapter 7 debugging patterns and controlling output. The tclpro tools have builtin support for all bundled extensions. A debugger for tcl applications, by don libes, proceedings of the 1993 tcltk. This paradigm is insufficient when dealing with many modern programs that demand to be used interactively. Tcl has been my main language for over 15 years now. The listing does not show the complete syntax for each command or flag. Expect is quickly becoming a part of every unix users toolbox. It uses unix pseudo terminals to wrap up subprocesses transparently, allowing the.
Unlike other expectlike modules for python, pexpect does not require tcl or expect nor does it require c extensions to be compiled. This paper describes how to write cgi scripts using tcl. My impression is that one needs to write the debug. The tclpro tool set includes a graphical debugger, a static code checker, a wrapper to generate standalone executables, a compiler that writes out tcl byte codes, and a loader that reads byte codes. Download expect for unix or expect for windows now. Oct 15, 2009 after you have installed tcl in your preferred pathlocation. This distribution comes with the code for both tcl 8. This is an extension for a pythonfeel to the expect library. In windows, these instructions are viewed as commented code and are ignored. Only the special introspection and debugflow command are written in c.
Design and implementation of the expect library was paid for by the u. If you already use a tcl based application, you will not have to learn a new language for expect. Exploring expect a tclbased toolkit for automating. Tcl have indeed very good introspection capabilities. The debugger has its own documentation that comes separately. A debugger for tcl applications don libes 2 tcltk workshop june 1011, 1993 berkeley, ca view by the application user this section of the paper is a debugger tutorial which shows the application users view of the debugger.
The best debugger i know of for tcl is part of activestates tcldevkit. Tcl debug l2 is a dynamically loadable extension written by don libes which provides breakpoints and single stepping of a tcl script. I am not able to stepinto a calling procedure, whether it is in the same tcl script or another. A debugger for tcl applications in proceedings of the tcltk workshop. Expect is also useful for testing these same applications. To install the tcl debugger application on the remote machine. The tcl debugger supports breakpoints, single stepping, and other common debugging activities. If you specify d0, dejagnu starts as usual, but you can enter the debugger by sending an interrupt. How to enable remote debug settings in android tv go to settings. Though the proc is executed and the result is seen in the console window. Open eclipse ide and follow the menu option window preferences tcl. A debugger for tcl applications don libes 2 tcl tk workshop june 1011, 1993 berkeley, ca view by the application user this section of the paper is a debugger tutorial which shows the application users view of the debugger. Command line frontend to the gdb debugger, which supports full d syntax from version 7.
A tcl based toolkit for automating interactive programs nutshell handbooks. Don libes expect is quickly becoming a part of every unix users toolbox. Debug the process by viewing the controlled console. Bundled extensions several popular tcl extensionsincr tcl, incr tk, tclx, and expectare precompiled for all of the tclpro supported platforms. When using expectk, this option is specified as debug. It allows you to automate telnet, ftp, passwd, rlogin, and hundreds of other applications that normally require human interac. Best presentation award best presentation award libes, d. Expect is a tool for automating interactive applications such as telnet, ftp, passwd, fsck, rlogin, tip, etc. Chapter 2 of exploring expect is a tcl tutorial specifically designed for expect users. You can download komodo from activestate downloads komodoremotedebugging. These pages are from the distribution done by tom davis and are available for download. Tcldebug article about tcldebug by the free dictionary.
Tcl programmingdebugging wikibooks, open books for an open. For the sake of concreteness, expect 1 will be used as the application. This paper describes an implementation of a debugger for tcl applications. A surprisingly underappreciated unix automation tool 20161208 by robert elder. Tom tromey has extended this extension to provide filename and line number associations with statements. Other readers will always be interested in your opinion of the books youve read. A tcl based toolkit for automating interactive programs. Mark diekhans and karl lehenbauer are the primary developers of extended tcl tclx. If youre unfamiliar with wish or tk, download the tcl tk distribution from the tcl developer xchange.
Debian user forums view topic tcl debugger with tcl8. It also provides very convenient support for debugging and handling cgi errors. To debug your tcl programs you would need to install the komodo remote debugger. In last article we have seen how to configure eclipse to run tcl script here is the link. To install tcl, just mimic the instructions as for cgi. Don libes is the creator of expect as well as the author of this book. If you dont already have tcl, you can get it as tcl. Specifying an interpreter is unnecessary in windows as the. The library is very thorough it supports forms, tables, cookies, file upload, plugins, javascript, netscape extensions, etc, etc. Pexpect can be used for automating interactive applications such as ssh, ftp, passwd, telnet, etc.
How to debug a tcl script using eclipse eclipse is consider as good ide for development as well as debugging. Exploring expect a tcl based toolkit for automating interactive programs don libes download bok. In any software development, debugging often takes more time than the programming not to mention design the need for debugging is even more exaggerated in tcl where many people code while thinking. Any idea, what i need to do, to avail of the tcl debugger. Graphical frontend to the gdb debugger, which supports full d syntax from version 7. It was inspired by the 1995 expy module, which had a decidedly tcl feel to it. If you specify d1, the expect shell stops at a breakpoint as soon as dejagnu invokes it. Debugger commands can be accessed from the debug menu, by shortcut keys, or from the debug toolbar. Using custom tcl interpreters with tclpro debugger. These pages are an index to a set of tcltk references on the www presented.
Jan 09, 2016 check how to debug a tcl script using eclipse. This paper describes an implementation of a debugger for tcl applications the debugger has a typical front end but with some extremely unusual commands, in part because of the features and limitations of tcl. Introduction and overview don libes 21 alternatives to expect automating passwd the hacker approach get source if possible and modify commandline argument handling. This allows the debugger to handle control structures and multiline commands. Critical aspects usually syntax of both expect and tcl have changed since they. Copy and reuse information stopwatch is in the public domain. Specify the tcl interpreter komodo uses to debug and run tcl programs. Tcl is an interpreted language that is widely used in many other applications. Less successful is the forward look that harrison intended, toward the plans the extension authors had for future enhancements and extensions. It allows you to automate telnet, ftp, passwd, rlogin, and hundreds of other applications that normally require human interaction. The most current snapshots of expect will be found in the expect fossil repository. Welch, practical programming in tcl and tk pearson.
Contribute to arowsertcldebug development by creating an account on github. It adds support for event driven io over pipes and event driven console input. Use it to tie together internet applications including telnet, archie, ftp, gopher, and mosaic. Apr, 2012 i am using komodo tcl remote debugger ver 7. It is included with many other tcl libraries explanation of tcldebug. Abstract cgi scripts enable dynamic generation of html pages. Tcl is easy for application programmers to use, however, up to now, there has been no generalpurpose debugger for application users. Now, open eclipse, and navigate to the following menu option window preferences tcl, expand tcl and then choose debug. If you don t already have tcl, you can download it as source from the tcl core web site or as binaries from activestate. The examples in all of the papers listed below here are archaic. Tclpro debugger works with the following versions of tcl. The debugger has a typical frontend but with some extremely unusual commands, in part because of the features and limitations of tcl.
More about exploring expect exploring expect is an excellent resource for learning and using expect. It should work on any platform that supports the standard python pty module. Several popular tcl extensionsincr tcl, incr tk, tclx, and expectare precompiled for all of the tclpro supported platforms. See the document debugger for tcl applications by don libes. Gnu ddd is a graphical frontend for commandline debuggers such as gdb. An uptodate description of the debugger appears in chapter 18 of exploring. Now for a more practical task lets let tcl compute the value of pi. Expect expect is a tool for automating interactive applications such as telnet, ftp, passwd, fsck, rlogin. Many people use tcl for this purpose already but in an ad hoc way and without realizing many of the more nonobvious benefits.
Tcl debug is a dynamically loadable extension written by don libes which provides breakpoints and single stepping of a tcl script. Add the following to the top of the tcl file you want to debug. Appendixcommands and variables exploring expect book. Dejagnu is a popular expectbased framework for testing other programs. A debugger for tcl applications don libes 2 tcl tk workshop june 1011, 1993 berkeley, ca view by the application user this section of the paper is a debugger tutorial which shows the.
Tcl ip 4 x window 3 database 19 orable 7 mysql 2 postgres 3 java 3 widget 1 incr tcl 11 canvas 9 comboxbox 4 text 30 entry 9 scale 1 table 5 incr tk 16. See the tcl wiki page for more detail on dynamic debuggers in tcl. Click on interpreters, click add button on the right, enter interpreter name as tcl and click browse and choose the path to the tcl interpreter executable. This application is also available for download from the komodo remote debugging page. For one thing, tcl s builtin trace command makes it pretty simple to add in your own breakpoints, watchpoints, do singlestep tracing, etc. This appendix is a listing of the commands, flags, and variables built into expect not including those provided by tcl. If you dont already have tcl, you can download it as source. How to enable remote debug settings in android tv youtube. Configuring eclipse as tcltk ide technokraftis weblog. Install the above software under a directory of your choice.
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