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-rw-r--r--src/msggrep.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/msggrep.c b/src/msggrep.c
index 576c423..47b0eef 100644
--- a/src/msggrep.c
+++ b/src/msggrep.c
@@ -407,8 +407,15 @@ A message is selected if it comes from one of the specified source files,\n\
or if it comes from one of the specified domains,\n\
or if -K is given and its key (msgid or msgid_plural) matches MSGID-PATTERN,\n\
or if -T is given and its translation (msgstr) matches MSGSTR-PATTERN.\n\
+\n\
+When more than one selection criterion is specified, the set of selected\n\
+messages is the union of the selected messages of each criterion.\n\
+\n\
+MSGID-PATTERN or MSGSTR-PATTERN syntax:\n\
+ [-E | -F] [-e PATTERN | -f FILE]...\n\
PATTERNs are basic regular expressions by default, or extended regular\n\
expressions if -E is given, or fixed strings if -F is given.\n\
+\n\
-N, --location=SOURCEFILE select messages extracted from SOURCEFILE\n\
-M, --domain=DOMAINNAME select messages belonging to domain DOMAINNAME\n\
-K, --msgid start of patterns for the msgid\n\