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authordkf <donal.k.fellows@manchester.ac.uk>2008-07-07 08:36:28 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2008-07-07 08:36:28 (GMT)
commit81eebb1fe3cf4ab6f9ff196e22ab984d278db52e (patch)
tree39420f3450fa226c4f01916113938a72f9ec4228 /doc/regsub.n
parent193a6191fa16c3d1ed272f19eddc56150a91c1a4 (diff)
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Correct examples. [Bug 1982642]
Diffstat (limited to 'doc/regsub.n')
-rw-r--r--doc/regsub.n17
1 files changed, 12 insertions, 5 deletions
diff --git a/doc/regsub.n b/doc/regsub.n
index ca16aa8..413a6ab 100644
--- a/doc/regsub.n
+++ b/doc/regsub.n
@@ -6,7 +6,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: regsub.n,v 1.22 2007/12/13 15:22:33 dgp Exp $
+'\" RCS: @(#) $Id: regsub.n,v 1.22.2.1 2008/07/07 08:36:30 dkf Exp $
'\"
.so man.macros
.TH regsub n 8.3 Tcl "Tcl Built-In Commands"
@@ -139,23 +139,30 @@ string after replacement is returned.
See the manual entry for \fBregexp\fR for details on the interpretation
of regular expressions.
.SH EXAMPLES
+.PP
Replace (in the string in variable \fIstring\fR) every instance of
\fBfoo\fR which is a word by itself with \fBbar\fR:
.CS
-\fBregsub\fR -all {\e<foo\e>} $string bar string
+\fBregsub\fR -all {\emfoo\eM} $string bar string
+.CE
+or (using the
+.QW "basic regular expression"
+syntax):
+.CS
+\fBregsub\fR -all {(?b)\e<foo\e>} $string bar string
.CE
.PP
Insert double-quotes around the first instance of the word
\fBinteresting\fR, however it is capitalized.
.CS
-\fBregsub\fR -nocase {\e<interesting\e>} $string {"&"} string
+\fBregsub\fR -nocase {\eyinteresting\ey} $string {"&"} string
.CE
.PP
Convert all non-ASCII and Tcl-significant characters into \eu escape
sequences by using \fBregsub\fR and \fBsubst\fR in combination:
.CS
# This RE is just a character class for everything "bad"
-set RE {[][{};#\e\e\e$\es\eu0100-\euffff]}
+set RE {[][{};#\e\e\e$\es\eu0080-\euffff]}
# We will substitute with a fragment of Tcl script in brackets
set substitution {[format \e\e\e\eu%04x [scan "\e\e&" %c]]}
@@ -170,4 +177,4 @@ regexp(n), re_syntax(n), subst(n),
string(n)
.VE
.SH KEYWORDS
-match, pattern, regular expression, substitute
+match, pattern, quoting, regular expression, substitute