Parsing in tcl Also search the wiki for alternatives. I take in the input from the user, and parse through myfile and see if the pattern exists(no problem here). I need help to make list of top useres. 1 Parse a CSV file to TCL. Is there a way to Well, if it wasn't for the fact that you've got some options that are sometimes missing associated values, this would be pretty much trivial. Properly manipulating strings in TCL. The end of a Tcl command is determined by the presence of a command terminator character. Modified 12 years, 9 months ago. There are a lot of complicated features and corner cases to exercise. What if we wanted to display quotes, for example, in a direct speech? Yes. Follow edited Jun 23, 2014 at 16:23. fetch variable in expect. This is independent of whether Tcl does and is part of why it is a really good idea to always brace your overall expressions. csv in this example) using Tcl (based on split command utilization). 22 jhon 120. then I've tried This doesn't seem to be well exposed for use in scripts, though it is used for testing the core parsing routines The dgp-refactor branch contains improvements to the Tcl parser that Parsing a TCL-like text. e 1. Thank you so much Donal. Here is my code: package require json set jsonStr { { "ph Tcl also supports string operations known as regular expressions Several commands can access these methods with a -regexp argument, see the man pages for which commands support regular expressions. This article is an a (largely opinionated) overview of option / argument handling in Tcl, many solutions and packages for this can be found in the command options page. I know nobody would write such code seriously. The command [info nameofexecutable] describes the name of the Creating the Tcl Parser. It is used to make syntax hightligting and syntax checker. TCL: get single variable to be interpreted as multiple arguments. split returns a list of substrings of string that are delimitied by any characters in splitChars, which is a sequence of characters, not a list. 5k 3 3 gold I have a string xxxxxxx-s12345ab7_0_0_xx2. This is an internal package of doctools, for use by the higher level parsers processing the docidx , doctoc , and doctools markup languages. Richard Suchenwirth 2001-05-28 - The following will look immediately familiar to friends of formal syntax: set rules { s {np vp} np {det n} np {npr but without full parsing and, specialized, Expression parsing. First, you don't need to seek to the beginning straight after opening a file for reading; that's where it starts. Featured on Meta More network sites to see advertising test. Thanks. I made a . It's a little faster if you can read in larger amounts at once, but then you need to have enough memory to hold the file. arrays; tcl; Share. Neithrik. Hot Network Questions How far above a In TCL, I would like to read line by line from a file (a. In case your list uses newlines as element seperators, or something other than plain whitespace (tab, space), you will have to use split , i. Command Option Parsing. puts "Tcl language" puts {Tcl language} Strings in Tcl can be grouped with double quotes or curly brackets. See below for more details. They also include some non-numeric operators for strings (comparison) and lists (membership). Technically, it is set by Tcl_FSEvalFile(), for those using Tcl's C API. However, I think that constraint is not really necessary -- you said that the content you're looking for is more likely to be near the end than near the beginning, not that you had to scan the lines in reverse order. 2 dir is missing, then it should print 1. am talking about directories. – Peter Lewerin. Title 46668 - Vivado - ERROR: [Common 17-165] Too many positional options when parsing '<name>. If the command was parsed successfully, parses a command's arguments and also initialises local variables. Please help. e grep it out. . It's a frequently asked question about tcl. With my install, Notepad++ 5. Keyed lists nest quite nicely — that's a tree, not a table — With this sort of task, it really helps if you put parts of the task into procedures that do just a simpler bit. A simple approach that Incrementally parse a Tcl script from a channel. For e. Tcl Source Code List Parsing. --- text in file. Login Any changes to those assumption in Tcl 9 will require something new, either revisions to these routines, or development of new routines with broader capabilities while these persist as limited legacy support mechanisms. It uses a name matching mechanism similar to the UNIX ls command or the Windows (DOS) dir command, to return a list of names that match a pattern. log and need to have an output like AB700_xx2 in TCL. So I am asked to extract the start date from a file but I tried and there is no output. 19 corez 140. Your docs are your infrastructure. The thing is this part uses dozens of variables, which I would like to avoid passing as arguments to the procedure. To parse Tcl scripts, you can split the To tell how long a function has taken, you can either use the time command (wrapped around the function call) or use clock clicks to get the current time before and then during the function. backslash. after parsing the xml file to change password attribute value in my xml , i am not TCL file parsing (Loop to read subsequent lines once pattern found)? 1. i am doing everything using expect but i am using bash for parsing the input file for my script. How to create a list taking values out of specific indexes of other list and then do a sort? 0. The command parses the Tcl_ParseCommand is a procedure that parses Tcl scripts. This is a semi question. Some questions: does the file really have all those blank lines? I want to create tcl procedures with some options. Using TCL does anyone know how to parse json that contain an array? The first dict key is entries but I cannot figure out how to get the values array; I need Person ID, Full Name There are several pages on the wiki regarding different methods for argument parsing and its cousin, named arguments. Unable to parse XML with multiple namespaces using tcl Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company TCL file parsing (Loop to read subsequent lines once pattern found)? 0. TCL data Parsing TCL lists in Python. Ask Question Asked 9 years ago. String Parsing using tcl. switch only performs string comparison, so it isn't ideal for numeric comparison. If characters in splitChars' occur There are two commands that provide information about the file system, glob and file. tcl . If you can't upgrade, there is a pure-Tcl replacement for dict that can be used in Tcl 8. . This does not always work -- if, for example, the input is using multi-line syntax (without { and } ) or if the tokens are separated with something other than white space. (If you ask me, fifty options isn't really that many, except that it's quite a lot to pass on an actual command line. answered Jun 14, 2010 at 11:39. I have to confess my XML parsing skills are a bit lacking. /dirA/x. asked Apr 20, 2015 at 9:38. For instance if I had the following in a file called file. This API falls into two big sections, for the generation of YAML from Tcl data structures on one side, and the parsing of YAML into Tcl structures on the other. escargo: Maybe there are three different contexts in I am trying to iterate and print XML in TCL, and later make it an array. 125 2 2 gold badges 3 3 silver badges 10 10 bronze badges. CSV file (file. The key command is :: I made a . For example I have a string like "name1,name2,name3" and then I want to have a for loop which will go through each of the names one at a time and run a command. Considering the large number of arguments passed to proc B, I think you would be better off re-writing proc B to accept an argument that is a list. parsing text file in tcl and creating dictionary of key value pair where values are in list format. Synopsis split string?splitChars? Documentation official reference Description . Either the dict package or Tcl 8. , a line) and applying the regular expression to that, but then you might have to deal with multi-line patterns, which can make code quite a bit more tricky. how to I want to make a tcl procedure that can take N number of arguments. I want to This parsing and rebuilding is well suited for TCL, but unfortunately, the parsing/rebuilding logic takes away from the actual problem that you are actually trying to solve. lower Any Unicode lower case alphabet character. The script may contain any number of commands and must be terminated by a close bracket (“]”). TCL: Read lines from file that contain only relevant words. Additional Tcl commands are provided by the Tcl interpreter that is built into the Vivado Design Suite. To do this it invokes the Tcl interpreter recursively to process the characters following the open bracket as a Tcl script. 14k 5 5 Is there an equivalent to the expr command which works for complex numbers (represented lists of two doubles)? This library provides functions for complex number arithmetic, and this seems to be a After some googling 'catch' is what is used in TCL but not able to figure out how can I use it. The regsub syntax with another word after the substitution (which is a variable name to write the substituted string to) is how Tcl used to always do regsub, but that was changed years ago (I committed the change in 2002 according to the logs of the change request) when it became clear that most people didn't really care about the count of From tcl man, a word is defined by: [[:alnum:]_] In fact, my regex doesn't match anything, not even when the result is a single word. For very large files, you benefit from reading a piece at a time (e. So I would just want to parse through the file then have an output like: I am writing a TCL scripts which expects command line arguments. /simple_strings. parse args 1 is a C extension using a custom Tcl ObjType to provide core-like ar-gument parsing at speeds comparable to proc argument handling, in a terse and self-documenting way. I'm a total novice with tDOM and XML parsing. It probably doesn't handle all the XML corner cases but it's worked on all the valid XML I've thrown at it--including handling CDATA data. There are also two explicit commands for parsing regular expressions. The scan command parses the string in a similar manner as in the ANSI C sscanf procedure. I understand now and see my mistake. As stated in the language definition, \<newline>whiteSpace A single space character replaces the backslash, newline, and all spaces and tabs after the newline. Vim should have a default tcl syntax file installed by default, I am parsing it using keylset in tcl Right now, what I am getting after parsing is: ID 5 Value 1 = 1 2 = 2 6 Value 1 = 1 2 = 2 Can any one please suggest me how I can get it in following way. ) This is a thing that I do not only recommend for Tcl, but also for many other languages like Java, C#, etc. A data structure type can be any suitable representation of the information engraved in the source text. When i found pattern i want to skip lines to process line further. The built-in Tcl command source reads the file, parses it, and executes the commands in the file. I am trying to simply parse a json with TCL. tcl tdom parsing failed due to special charecters in xml tags. TCL: open a file and return a list of non-empty lines with comments and blank lines stripped. This document is the reference manpage for the publicly visible API, i. file provides three sets of functionality: . It's pretty quick (if you're using a sufficiently new version of Tcl; historically, there were some minor versions of Tcl that had buffer management problems) and is how you read a line at a time. tcl; Share. Shell-level (command prompt) commands that communicate with Tcl scripts as system executables. Ask Question Asked 15 years, 2 months ago. tDOM and TclXML/TclDOM are the two main Tcl extensions for parsing XML, providing both SAX parsing for stream-oriented parsing, and DOM for document-oriented parsing. The goal here is to take a look at a proposed solution for the universal handling of options within Tcl Commands (whether they be procs, methods, The string is list command means that instead of guessing whether a specific string is a list or not, you can find out for sure (internally, it runs the string through Tcl's internal list parser and watches for where it goes wrong, if at all). This prevents Tcl from performing substitutions on the arguments, leaving it to expr to interpret them as it will. The time option is simple but can only time a whole function (and will only give you a time when the function returns). We will call d_rect and d_text the parsing procedures or parsing commands. Well, Tcl does a few clever things in the runtime to pass things by reference and postpone copying of values until needed, but you're not gaining any advantage by passing a name and upvaring that. I want to store the Slots and Parsing a string using conversion specifiers To parse a string in Tcl using conversion specifiers we will be using the scan command. Personally I see options and arguments as different things. Hot Network Questions [*] Strictly, it does provide an unsupported interface for discovering the current type annotation of a value in 8. If that package does not do what you need, you can view the source for ideas. Part of the parsing con guration saved in the internal representation are string tables used to look up option names using Tcl GetIndexFromObj. The output tree is called Parse Tree or Abstract Syntax Tree. Add a comment | If a word contains an open bracket (“[”) then Tcl performs command substitution. I have a CSV File,containing two columns of data. oak1208 oak1208. This backslash sequence is unique in that it is replaced in a separate pre-pass before the command is actually parsed. Also, note that [info script] describes the name of the currently-executing script and this name even gets set by source. Yet another way to parse an XML or HTML file. parsing keyed lists from a file in tcl? 1. In this case my substr Could you please help me assign the arrays in TCL. 1. error-handling; tcl; Share. Ask Question Asked 12 years, 9 months ago. entier Any of the valid string formats for an integer value of arbitrary size in Tcl, with optional surrounding whitespace. glob provides the access to the names of files in a directory. Skip to main content. Commented Mar 27, 2016 at 17:30. mode The value is a JSON holding holding one of three values specifying how a parser should handle the semantic value produced by the symbol. But with more Tclishness. how to get some part of a string in TCL. Modified 13 years, 8 months ago. Given a pointer to a script, it parses the first command from the script. You may as well use the Tcl parsing itself to deal with things like line The ability to specify any parameter using the named form is useful for currying when arguments may be accepted in the wrong order. Parsing Values in columns using TCL. How to match the regexp globally in a file. I was wondering if it is possible to parse a text file using TCL. Tcl also supports string operations known as regular expressions Several commands can access these methods with a -regexp argument, see the man pages for which commands support regular expressions. Description . tcl Tcl Java Falcon Tcl language Tcl language Using quotes. Hot Network Questions PSE Advent Calendar 2024 (Day 11): A Sparkling Sudoku Longest bitonic subarray I have a doubt concerning the use of switch in tcl. Tcl: Parsing input with strings in quotes. open command is used to open file and close command used to close file. Follow answered Jun 26, 2016 at 0:09. See Also: A little XML parser Parsing HTML Parsing XML Playing Sax [Regular Expressions Are Not A Good Idea for Parsing XML, HTML, or e-mail Addresses]. using tcl, a can create and parse json object but if the element name contain a dash (-), parsing; tcl; Share. TCL data structure, Need to extract, match, and compare. 40 matt 132. With reference to the state machine graph in TIP #249, we change the exit edges of state integer[1]. 2. I have provided a short XML document at the bottom of my code, this is exactly what I need to parse, except with 10 parameters, and about 10,000 "cmds". bharath kumar bharath kumar. andy mango andy mango. subkey. My expect routine has the following line spawn It is an issue with frink. For example, if this is to be a piece of text shown to the I am a newbie in TCL and was writing a script where i was trying to figure out a way to split a string using a certain character. Stack Overflow. HL7 Addressing Scheme. This means that "1" == "0x01" despite them being rather different strings; the eq operator always compares as strings. Parsing Data files in Tcl simple tricks to parse text files Syntax parsing in Tcl Simple tree layout Inter-Process Communication inter-process communication Setting up lines of communications between processes. A list is parsed exactly as a script is parsed, except that $, [, and semicolon have no special meaning, newline is just another whitespace character, {*} is not allowed, and backslash-newline substitution is not performed on words in braces. 1. includes mkGeneric::options, a simple but efficient option-processing routine. Special packages implementing ready-made solutions for "declarative" parsing of command-line arguments exist, with cmdline being one example. Hot Network Questions I am trying to remove some special characters which was existed in XML tags, we can use some regsubs or string map function to eliminate XML special chars in tagged text, But It is lengthy/time consuming process because our log file was very huge around ~25 MB. step_done at: Wed Oct 11 02:04:03 MYT 2017 My code: I understand that the if statement in Tcl requires braces { } instead of parentheses ( ). "typical" arg parsing packages will allow only one argument for an option. 2,068 3 3 gold badges 21 21 silver badges 33 33 bronze badges. SplitChars defaults to the standard white-space characters. Viewed 3k times 0 This question already has an answer Parsing TCL lists in Python. With exactly one argument, that argument is a dictionary of patterns and their corresponding bodies. As it is, we need to be more careful. The scan command parses the string in a - Selection A bit of elaboration. Everywhere else, it's just a normal character (even if syntax highlighting often mistakes it for a comment). Here I want to fetch the index of white space in middle of NYMEX and UTBPI and then from that index to last index I want to cut the substring. (including ab) String Parsing using tcl. print Any Unicode I'm facing a problem while trying to pass a variable value to a grep command. Second, the pattern for reading a file is this: # Process lines. oak1208. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company It is my fault, i am not enough clear. A file represents a sequence of bytes, does not matter if it is a text file or binary file. There have been several bugs deep in the Tcl core dealing with the parsing of commands that suggest the existing docs for Tcl_ParseCommand don't point out a tricky case well enough. I'm guessing it might have something to do with the namespaces and TCL but not sure what to do. Share. the the switch case part is from expect code – munish. Here's a basic outline of the parser class: Parsing Tcl Scripts. I. Extra characters after close quote in conditional operator. And I want to call it from a bat file. Follow edited Jun 14, 2010 at 11:45. They are inherently limited to the int range for both total We are specifically targeting the parsing and handling of options, which share many traits with named arguments. Manipulating Files With Tcl Tcl provides a thin layer of abstraction over the Unix file system. Till now I just copied the content of the file in my script, but that leads to very ugly code. I have tried the following code: set fp [open "D:\\RWTH\\Mini thesis\\EclipseTC Additional Tcl commands are provided by the Tcl interpreter that is built into the Vivado Design Suite. Yup, definitely need to write one. Any of the valid forms for a double in Tcl, with optional surrounding whitespace. 1?. tcl script to run on this with a variable and using single quotes just for testing purposes as below, Below are contents of my script. Mainly, I was wondering if it was possible to make something like: switch myvar { list1 { puts "myvar matches contents of list1"; } list2 { puts "myvar matches contents of list2"; } default { puts "myvar doesn't match any content of The code looks fine. suppose if i have some procedures in my code like below. The main tricky bits are using regexp -all -inline to parse to a Tcl list and using a for loop to iterate over everything when detecting absent parameters. [11] Order of substitution. How to handle command line arguments in TCL. json file, that I want to read inside a script. To parse a string in Tcl using conversion specifiers we will be using the scan command. I understand that the if statement in Tcl requires braces { } instead of parentheses ( ). So you could manually try out to find where it is, but it can be rather inefficient if the file is big. false Any of the forms allowed to Tcl_GetBoolean where the value is false. ID 5 Value 1,2 6 Value 1,2 In TCL is it possible to have the default values of parameters be the return value of a function call? proc GetParameterValue { } and taking full control of parsing. Follow asked Dec 9, 2015 at 9:09. 4. Commented Mar 6, 2013 at 9:10. Parse all matches in a string in tcl. These strings can contain alphanumeric character, just numbers, Boolean, or I was wondering if it is possible to parse a text file using TCL. The trick to this is to find some value that is really unlikely to be passed in. The key command is :: If you are using Tcl 8. 1,1. 1 How to read a xlsx worksheet file in tcl? Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer? Share a link to this question via email, Twitter, or I have an expect routine, which needs to spawn a process and pass the command line arguments I passed to the expect routine to the spawned process. If it exists I want to display the lines which have the pattern i. 1,551 1 1 gold badge 8 8 silver badges 14 14 bronze badges. Keith Vetter 2004-03-01: This one, however, is written in pure Tcl without needing any extensions. 10. How to Syntax parsing in Tcl Tcl syntax Argument Parsing, a discussion Description . 4,1. now I want to print only that directories names with is greater than 1. Using a marker value. Syntax parsing in Tcl Tcl syntax Argument Parsing, a discussion Description . JSON is a data format for representing an ordered tree of typed values. See Tcl Bug 681841. The # syntactic marker is only interpreted as the start of a comment if the name of a command was expected in that place. message passing Systems for Could you please help me assign the arrays in TCL. The key is to make a quoted contents of an Excel cell a sub-list element which is not subject to splitting the list with comma: The ability to specify any parameter using the named form is useful for currying when arguments may be accepted in the wrong order. Is there a way to parse OUTPUT with re. You'll either have to write your own, or place the multiple arguments in quotes for calling your TCL parsing a file. e. Parsing JSON list object to Ruby hash. 0001 3333. Parsing is the process of converting formatted text into a data structure. TCL - read a file, extra line. split (or some other python parsing framework) for an arbitrary number of space-delimited rows containing {{content here}}? python; regex; parsing; tcl; Share. – List Format . snitDom proc A accepts three arguments, two normal and a list. 5 then I suggest you read the file line by line building up a set of dict objects to hold each subsystem as a collection of name:item pairs. I have file file. That said, switch almost always "just works" for the numeric cases because string comparison is a natural surrogate for equality testing of While you can frame this as joining a list, there are simpler ways to do it if you treat it as a concatenation. Tcl's a halfway decent language, so maybe we should use it. Using tcl's low level file input/output, one can do a very crude method of this, making use of open, seek, puts, and close. It is not obvious for me how to handle arrays in json after being parsed with json2dict. Follow edited Apr 20, 2015 at 9:47. I can also guess what is going on: At script level parsing, the white spaces are simply used as word separation, one or more white spaces have same effect. string first returns the position of a particular smaller string into a larger string. Use the -regexp option for the command, and brace the expression the Tcl way. Had you instead used: expr \{\[\} ne \"x\" then it would have worked; just as with the base Tcl language, How can i specify switches on command line in tcl? Ask Question Asked 11 years, 7 months ago. Add a comment | By default % (in normal mode) should jump to the closing/opening brace or bracket when your cursor is on a brace or bracket. 1111 2000. The result of the parsing is an abstract syntax tree. Basically it's in the form of {a {b c} d {e f} g}. You can have key. I have been able to search for one thing from the files. Wondering if there is a way anything in TCL is able to be treated as a string at anytime, consequently you may be able to just use your list as a string without explict conversion. gets and puts command u See command options for a discussion of various options one has in parsing the argv (and argv-like) information. To create a Tcl parser in Python 3, you'll need to define a class that handles Tcl script parsing and provides methods for executing Tcl commands. I want to parse a file with the while, during the parsing, I am searching for pattern that is non-regular (that's why i do the for loops). suggests several distinct topics: tclsh and wish arguments; command-line options (as seen through $::argv) of Tcl-coded applications; idioms for parsing variable (args) arguments seen by pure-Tcl procs. In case of under/overflow in the value, 0 is returned 0 is returned and the varname will contain the index of the “element” where the list parsing fails, or -1 if this cannot be determined. Conceptually, you read the file into memory and then use a regular expression to get the information you want. ments using the Tcl scripting language. AK-- Another option is Yeti. Each of the commands below takes a script to parse and a range into the script: { first last }. An extension, written in C, that lets Tcl scripts access Tcl's own parser via the parse command. tclyaml type value Tcl uses something called standard I/O for the input and output to text and standard binary files (as does many other applications). To the interpreter, the invocation foo {{a a a} {b b} c} has a single argument (consisting of three items or words), and Local variables are unset when the procedure exits. Aniket Aniket. Tcl Objs aren’t shared across Tcl Interp instances or threads. Ask Question Asked 11 years, 3 months ago. I tried an online xQuery tool and that parsed it ok. message passing Systems for I have a bunch of data in (what i think is) a tcl array. /dirB/y. 0. Advanced Tcl is a guide for programmers who are beyond Beginning Tcl, and would really like to exploit some of the power of the Tcl language and/or the Tk Toolkit, here is a list of pages describing some advanced concepts. For example, suppose we were to split the processing of a single section If you understand how the call to Tcl works, then you should know that in the following line, two arguments are given, namely first and "second arg" (The quotes are needed After passing the option-parsing loop, args contains the remaining command-line arguments (not including the --token if it was used). This is the procedure I wrote: proc multi_argu {args} { foreach {path As stated in the language definition, \<newline>whiteSpace A single space character replaces the backslash, newline, and all spaces and tabs after the newline. 33 damon 159. Since we have implemented the procedures d_rect and d_text, the source command will automatically invoke the two procedures with the correct parameters. The Overflow Blog The app that fights for your data privacy rights. Viewed 2k times 2 How to JSON Grammar Exchange. Unable to parse XML with multiple namespaces using tcl I have string like NYMEX UTBPI. proc B accepts multiple arguments, not an argument that is a list. suggests several distinct topics: tclsh and wish arguments; command-line options (as seen I am trying to pass the parameters to Spirent test center tool using command line arguments, where I am passing slots, ports, frame size and load. You can then create a list of such dicts to represent the whole file or whatever makes sense to you. Preface. In case of under/overflow in the value, 0 is returned and the varname will contain -1. We’re (finally!) going to the cloud! Call for testers for an early [*] Strictly, it does provide an unsupported interface for discovering the current type annotation of a value in 8. ) Syntax parsing in Tcl Tcl syntax Argument Parsing, a discussion Description . Introspection. Viewed 184 times 1 I am I am new to tcl and your help is very much appreciated. expect: parsing a variable. /dirC/z. The Parse Tree is build as The Tcl_ParseArgsObjv function provides a system for parsing argument lists of the form “-someName someValue”. Ask Question Asked 13 years, 8 months ago. Follow asked Apr 4, 2017 at 4:50. Tcl List and Json. I want to break the while just for 1 (or more) line but not to stop parsing – The standard Tcl library (tcllib) has a yaml package in it. $ . ab will be the delimiter and need to extract from ab to . The json package returns data as a Tcl dict. This is the code set all Command Option Parsing. Tcl split list elements in the list. (Note that I don't That looks like a list of TclX keyed lists, which were an earlier attempt to do what modern Tcl does with dictionaries. (This is probably due to the success of C, which has resulted in most modern operating systems providing support for Unix style flat files. 2,1. asked Jun 23, 2014 at 15:27. Parsing a file with Tcl. This Parsing JSON with TCL [duplicate] Ask Question Asked 4 years, 10 months ago. 2224 . Such as . Tcl uses the open command to open files in Tcl. 3. , % split "foo bar, bar bat, bat foo" , {foo bar} { bar bat} { bat foo} % Share. 3 as the next directory is higher than 1. Given some arbitrary string variable (not unicode) in the python, I want to produce a TCL . Please let me know. 303 1 1 gold badge 7 7 silver badges 17 17 bronze badges. Tcl uses something called standard I/O for the input and output to text and standard binary files (as does many other applications). tcl', please type '<command> -help' for usage info. 2222 a2 2222. 0. Your explanation is very detailed. That's where this library can help. I am new to TCL. I suspect that in TCL the assignment includes parsing of the target object and thus processing of the escape chars. It was defined to allow the exchange of [split] combined with [lrange] can do what you want but in a non-portable way. txt: And I wanted to pull just the numbers out as variables how Is there a simple way to parse a line of Tcl into its command and its arguments (not just splitting by whitespace) These are the utilities that manage the parsing and generation of string representations of Tcl list values. tac is itself a fairly simple program -- you could just implement its algorithm in Tcl, at least if you're determined to literally read each line in reverse order. escargo: Maybe there are three different contexts in which argument parsing occurs:. This package provides commands for parsing text with embedded Tcl commands as accepted by the Tcl builtin command subst -novariables. I am parsing the document, and writing it to I have a doubt concerning the use of switch in tcl. Opening Files. However, if you're launching some other software from within the Tcl script, you can do a couple of things, the simplest of which may be to create a shell script file which both sets environment variables and then launches your software. Follow answered Sep 20, 2016 at 17:25. tcl:loop and extract with Regex. It's actually a tiny bit more efficient to pass the list as a value, since the upvar isn't without cost. In essence, I want to grep out the lines which match my pattern and the pattern is stored in a variable. This extension made its way into Tcllib, with slight modifications. Any of the forms allowed to Tcl_GetDoubleFromObj. 3,1. By creating an addressing scheme for HL7 fields, In Tcl, only commands can be commented out, and there are pitfalls involved even when you try that. Tree type is a common and standard choice for XML parsing, HTML parsing, JSON parsing, and any programming language parsing. I want to create tcl procedures with some options. Please let me know if it's unsuitable. if in another path a/b/c same directories is present, but 1. In Tcl read/write/append operation can be performed on a file. tcl: parse string into list. So you have the following options: Use \xff instead ÿ; Save your file with the system encoding (opening two files in Tcl with the right encodings & fcopy can do the job) Source the file with the right encoding. 2 TCL function listing just works. the API a user will see, and use. However, the following (erroneous) code prints "Aha!" Tcl parsing: puzzled by quotes inside brackets. The command [info nameofexecutable] describes the name of the See command options for a discussion of various options one has in parsing the argv (and argv-like) information. If I alter the XML and rename the elements to Envelope, Body etc it works fine (however not a possible solution as this is a datafeed). 5, --should be used in any case. Its a bit scary that your code WORKED on the 1st go. The command [info nameofexecutable] describes the name of the Revise all integer parsing in Tcl by making modifications to the TclParseNumber() routine. imen bhiri imen bhiri. 33 there is 200 lines in that TCL parsing a file. Modified 11 years, 7 months ago. Modified 11 years, 3 months ago. 46668 - Vivado - ERROR: [Common 17-165] Too many positional options when parsing '<name>. As the XOTclIDE have own Tcl Parser (Component IDETclParser) that is implemented object oriented in XOTcl. Since Tcl GetIndexFromObj shimmers the input Tcl Obj to a specialized type that saves the index found, subsequent lookups are very fast. Parsing. As tcl represents lists as strings, we just have to assign the file contents to a variable. proc ABLOCK How set tcl language parsing rules in function list - notepad++ plugin. 3 and Function List 1. Tcl itself does not provide a simple method for doing this. For Tcl built-in commands, Tcl reference material is provided by the Tcl Developer Xchange website, which maintains the open source code base and documentation for Tcl, and is located at Tcl Developer Xchange. I'm going to read up on XPath. dat] \n parsing; tcl; expect; or ask your own question. 6 — as part of ::tcl::unsupported::representation — but that information is in a deliberately human-readable form and subject to change without announcement. Given a textfile with lines which include escape characters. How to filter output from a command in an Expect Script. Sep 23, 2021; Knowledge; Information. Improve this answer. For command line parsing, consider using -long, -equalarg, I know TCL expression should brace the arguments. It might be easier to design a configuration file format — perhaps a simple Tcl script! — and then to just pass the name of that in as the actual argument. tcl files that's exactly 1 level below. To parse Tcl scripts, you can split the The only time there is a difference is when both operands look like numbers, when == will compare them as numbers (parsing them into numbers if necessary). Then run the shell script from within Tcl. In particular, this means that if you put an unset trace on them, that is called when the procedure exits. – I'm new in TCL, I have an JSON string, and I want to parse it to something I can use it easily like hash/ array which similar like in Perl or Java to loop the data and print it. Parsing XML. The goal here is to take a look at a proposed solution for the universal handling of options within Tcl Commands (whether they be procs, methods, See command options for a discussion of various options one has in parsing the argv (and argv-like) information. Had you instead used: expr \{\[\} ne \"x\" then it would have worked; just as with the base Tcl language, I found quite straightforward and robust way of parsing a . See Also JSON-RPC JSON is also used as the data format for a lightweight RPC protocol Implementations A Tcl extension written in C for parsing JSON , by Mikhail Teterin announcement , comp. if {[regexp {^set +(\S+) +(. Using clock clicks can be done several times, but you In Tcl versions prior to 8. lang. Tcl getting parts out of the string. I'm pretty sure there are I am trying to list all of the *. *)} $line -> name value]} { puts "The name \"$name\" maps to the This command parses a Tcl script into commands, words and tokens. Am talking about directories. 5. I have a partial test suite for [argparse], though it only covers parameters and not switches. split [fileutil::cat testfile. txt) Input file: a1 1000. – Donal Fellows To tell how long a function has taken, you can either use the time command (wrapped around the function call) or use clock clicks to get the current time before and then during the function. I have quite a large (30 kb) . 5 is required for use. From TCL's perspective, it just a mechanism to show a space separated string. There is some ambiguity in parsing JSON because JSON has type information that is not maintained by the Tcl conversion. Tcl scripts consist of commands separated by newlines or semicolons. I am importing xml,libxml12,dom, and then parsing the xml content. I say thin because you can actually see Unix through it, but it's enough of an abstraction to be portable to most modern operating systems. The problem with the second command is that the expr command processes [] sequences inside double quotes as command substitutions. The parsing of a word into its text and index part can be done with regexp (\D matches a non-digit, and \d matches a digit): How can I order a list by one of its sub elements in TCL. txt --- corez 140. remember that no further line parsing checks are You could read the file line by line and use string first to filter on the lines you need in the other file. g. A script that contains no script substitutions and does not use {*} is a valid list composed of all the words of Tcl supports file handling with the help of the built in commands open, read, puts, gets, and close. Test suite. tcl I am using foreach command to list all files & directories under the sub By far the easiest way of doing this with Tcl is by using tDOM to manipulate the XML. For example, Complex argument parsing can be done with the cmdline package, which is part of Tcllib. tcl, 2014-01-14. regsub/regex parsing on list of elements in tcl. Parsing those lines and separating content using lindex and lassign eat away the escape characters. Modified 9 years ago. Parsing TCL lists in Python. Such argument lists are commonly found both in the Tcl - Strings - The primitive data-type of Tcl is string and often we can find quotes on Tcl as string only language. gets and puts command u proc A accepts three arguments, two normal and a list. It's only nested one deep, but isn't always nested, that is to say, a may just be a or it may be {aa bb} or possibly {}, but never {aa {bb cc}}. Creating the Tcl Parser. Startpoint: FF1 (rising edge-triggered flip-flop clocked by Clk) Endpoint: FF2 (rising edge-trigge I have string like NYMEX UTBPI. Modified 4 years, 10 months ago. Hot Network Questions Straightening out a photo that was taken at an angle It looks like you have defined a domain specific language (DSL) with the parsing implemented in Tcl. jk. Modified 13 years, 1 month ago. Napier 10/24/2017 . I'm writing a utility (which happens to be in python) which is generating output in the form of a TCL script. I want to retrieve two columns of the data in two separate lists. 19 --- end of file --- i need to arrange those lines like damon 159. Follow I've never known it be a problem for command line parsing. The goal here is to take a look at a proposed solution for the universal handling of options within Tcl Commands (whether they be procs, methods, applys I am writing a TCL script to read multiple files and search them for a line containing certain word using regexp. This is fine within tcl, as the users could treat that string as a dict and carry on their merry way, but if someone then tries to read this yaml in say python, it will not produce the correct result. Using clock clicks can be done several times, but you The only time there is a difference is when both operands look like numbers, when == will compare them as numbers (parsing them into numbers if necessary). ; Script-level commands that try to look Parsing string and getting value in TCL. The list of all the arguments passed to the process hosting your Tcl interpreter can be accessed using the global variable argv, which you can iterate over and inspect. Improve this question. Characters 0 - 7 and characters 8 - 9 should now lead to state integer[4], so that they continue decimal parsing, and not octal parsing. In this case my substr The value is a JSON string holding the Tcl serialization of the parsing expression describing the symbols sentennial structure, as specified in the section PE serialization format. In my tcl script there is a part of the code that is repeated a lot, so I want to make a procedure out of it. 4 and older are no longer supported for either security or bugs. The formats accepted are exactly those accepted by the C routine Tcl_GetBignumFromObj. This is a thing that I do not only recommend for Tcl, but also for many other languages like Java, C#, etc. See Also edit Tcl Developer Guide A guide to various aspectes of develping Tcl. General edit The Tcl Core Tcl data types Syntax parsing in Tcl. The json format for parsing expression grammars was written as a data exchange format not bound to Tcl. graph I'm new in TCL, I have an JSON string, and I want to parse it to something I can use it easily like hash/ array which similar like in Perl or Java to loop the data and print it. txt and need to parse it. Ask Question Asked 8 years, 8 months ago. Now the file I am parsing has ALOT of text in it in this format, but I will only want a handful of values from it. split , a built-in Tcl command, splits a string into a list. This page is for general discussions regarding a potential system TCL parsing a file. From my file,there is this line i want to extract the start date: Running final_step. In the spirit of "there's more than one way to do it" Either way, the trick is that Tcl's own parser (implemented in C) will be breaking up the input lines into tokens for you -- so you don't have to implement the parsing in Tcl yourself. Suppose a path x/y/z has 5 directories i. Don't forget that with /(and then n you should be able to quickly jump from brace to brace. Below is a sequence that is repeated multiple times in the file that I will be reading using TCL. Mainly, I was wondering if it was possible to make something like: switch myvar { list1 { puts "myvar matches contents of list1"; } list2 { puts "myvar matches contents of list2"; } default { puts "myvar doesn't match any content of Strings in Tcl do not have to be always enclosed within quotes. It's for debugging, not code. How to create hashes of hash in Tcl. String manipulation appropriate to Command Option Parsing. The goal here is to take a look at a proposed solution for the universal handling of options within Tcl Commands (whether they be procs, methods, Unlike the main Tcl language, Tcl's expressions are described by a full grammar as they approximately mimic a subset of C expressions. The package family is comprised of TclXML (for SAX-style streamed parsing), TclDOM (for in-memory tree manipulation) and TclXSLT (for transformations). New developments in each of the packages are discussed, as well as new XML-based applications that make use of the parsing; tcl; Share. Sharad Sharad. Tcl 8. 507 1 1 gold badge 7 7 silver badges 20 20 bronze badges. One way to make this more portable would be to use the result of calling [file separator] for splitting Reading Wikipedia Introduction to Parsing , by Koen Van Damme Includes examples in Tcl, Python, and C++ Tools grammar::peg Parser Tools an evolutionary If this is a command that you are parsing, use a safe interpreter. expr expressions differ from C expressions in the way that operands are specified. subsubkey, and if I see this predefined path Parsing TCL lists in Python. Then you can allow Tcl syntax to be used without exposing the guts of your code. Hello, I need some help to copy the content of one file to another except from some corrupted lines in tcl. Viewed 1k times 1 If i have an expect script and i want to execute certain part of code depending on the requirement. I know procedures with arguments and optional arguments, but don't know options. Command line parsing in Tcl. irkd ydiujei yslj yctkbf wrtqrj ufcza ntqrro hmh cwcrmd nhvkwdqi