# ctags-lang-tcl

## Random notes about tagging tcl source code with Universal Ctags

Version: | 6.2.0
Manual group: | Universal Ctags
Manual section: | 7

# SYNOPSIS

ctags ... --languages=+Tcl ...
ctags ... --language-force=Tcl ...
ctags ... --map-Tcl=+.tcl ...

# DESCRIPTION

This man page gathers random notes about tagging tcl source code.

# TAGGING language objects of OO Extensions

TclOO parser and ITcl parser are subparsers running on the Tcl parser. As the names of parsers show, they are for tagging language objects of object oriented programming extensions for the Tcl language.

A pattern, "namespace import oo" in an input file activates the TclOO parser. A pattern, "namespace import itcl" in an input file activates the ITcl parser.

There are cases that one of the OO extensions is used though neither pattern are appeared in an input file.

Consider the following input files:

"main.tcl"

    package require Itcl
    namespace import itcl::*
    source input.tcl

"input.tcl"

    class MyClass {
            public method foo {} {
            }
    }

The pattern for activating the ITcl parser is not appeared in "input.tcl" though "class" command is used. As a result, ctags cannot extract "MyClass".

The parameters TclOO.forceUse=true|[false] and ITcl.forceuse=true|[false] for handling this situation. With the parameter, you can force ctags to activate one of the subparsers.

You can use the parameters like `--param-ITcl.forceuse=true` in a command-line.

Note that you can enable only one of ITcl parser or TclOO parser. Enabling both parsers with specifying the parameters can cause unexpected results.

# SEE ALSO

ctags(1)