1lib.modern::Text::Tabs(U3s)er Contributed Perl Documentatliiobn.modern::Text::Tabs(3)
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NAME

6       Text::Tabs - expand and unexpand tabs like unix expand(1) and
7       unexpand(1)
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SYNOPSIS

10         use Text::Tabs;
11
12         $tabstop = 4;  # default = 8
13         @lines_without_tabs = expand(@lines_with_tabs);
14         @lines_with_tabs = unexpand(@lines_without_tabs);
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DESCRIPTION

17       Text::Tabs does most of what the unix utilities expand(1) and
18       unexpand(1) do.  Given a line with tabs in it, "expand" replaces those
19       tabs with the appropriate number of spaces.  Given a line with or
20       without tabs in it, "unexpand" adds tabs when it can save bytes by
21       doing so, like the "unexpand -a" command.
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23       Unlike the old unix utilities, this module correctly accounts for any
24       Unicode combining characters (such as diacriticals) that may occur in
25       each line for both expansion and unexpansion.  These are overstrike
26       characters that do not increment the logical position.  Make sure you
27       have the appropriate Unicode settings enabled.
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EXPORTS

30       The following are exported:
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32       expand
33       unexpand
34       $tabstop
35           The $tabstop variable controls how many column positions apart each
36           tabstop is.  The default is 8.
37
38           Please note that local($tabstop) doesn't do the right thing and if
39           you want to use "local" to override $tabstop, you need to use
40           local($Text::Tabs::tabstop).
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EXAMPLE

43         #!perl
44         # unexpand -a
45         use Text::Tabs;
46
47         while (<>) {
48           print unexpand $_;
49         }
50
51       Instead of the shell's "expand" command, use:
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53         perl -MText::Tabs -n -e 'print expand $_'
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55       Instead of the shell's "unexpand -a" command, use:
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57         perl -MText::Tabs -n -e 'print unexpand $_'
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BUGS

60       Text::Tabs handles only tabs ("\t") and combining characters ("/\pM/").
61       It doesn't count backwards for backspaces ("\t"), omit other non-
62       printing control characters ("/\pC/"), or otherwise deal with any other
63       zero-, half-, and full-width characters.
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LICENSE

66       Copyright (C) 1996-2002,2005,2006 David Muir Sharnoff.  Copyright (C)
67       2005 Aristotle Pagaltzis Copyright (C) 2012-2013 Google, Inc.  This
68       module may be modified, used, copied, and redistributed at your own
69       risk.  Although allowed by the preceding license, please do not
70       publicly redistribute modified versions of this code with the name
71       "Text::Tabs" unless it passes the unmodified Text::Tabs test suite.
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75perl v5.38.0                      2023-07-21         lib.modern::Text::Tabs(3)
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