libremessages/librexgettext: Preserve two spaces after a period.

Well, [.!?] really--this matches the behavior of `fmt -u`.

1 files changed, 7 insertions, 4 deletions

diff --git a/src/lib/libremessages b/src/lib/libremessages
index 10b1818..f6deac8 100755
--- a/src/lib/libremessages
+++ b/src/lib/libremessages
@@ -60,11 +60,14 @@ print() {
 
 # Usage: _libremessages_html_whitespace_collapse <<<STRING
 #
-# Do HTML-style whitespace collapsing on standard IO.  It considers
-# newline, tab, and space to be whitespace.
-_libremessages_html_whitespace_collapse() {
+# Collapses whitespace on stadard I/O, similar to HTML whitespace
+# collapsing, with the exception that it puts two spaces between
+# sentences.  It considers newline, tab, and space to be whitespace.
 	[[ $# == 0 ]] || panic
-	tr '\n' ' ' | sed -r -e 's/\t/ /g' -e 's/  +/ /g'
+
+	tr '\n' '\r' | sed -r \
+			   -e 's/\r/  /g' -e 's/\t/ /g' \
+			   -e 's/(^|[^.!? ]) +/\1 /g' -e 's/([.!?])  +/\1  /g'
 }