From f4955341bb5ad71969eb765915509708ebb70d0f Mon Sep 17 00:00:00 2001 From: Jimmy Monin Date: Tue, 5 Sep 2017 21:09:24 +0200 Subject: [PATCH] Complete ynh_replace_string helper comments to mention the possible use of regexp --- data/helpers.d/string | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/data/helpers.d/string b/data/helpers.d/string index 772681fb9..b77b42ef7 100644 --- a/data/helpers.d/string +++ b/data/helpers.d/string @@ -10,12 +10,16 @@ ynh_string_random() { | sed -n 's/\(.\{'"${1:-24}"'\}\).*/\1/p' } -# Substitute/replace a string by another in a file +# Substitute/replace a string (or expression) by another in a file # # usage: ynh_replace_string match_string replace_string target_file # | arg: match_string - String to be searched and replaced in the file # | arg: replace_string - String that will replace matches # | arg: target_file - File in which the string will be replaced. +# +# As this helper is based on sed command, regular expressions and +# references to sub-expressions can be used +# (see sed manual page for more information) ynh_replace_string () { delimit=@ match_string=${1//${delimit}/"\\${delimit}"} # Escape the delimiter if it's in the string.