trim comment at start of script

[code/mailplate.git] / mailplate

diff --git a/mailplate b/mailplate
index 4b03c05595b6b0cc978997e66a028ebe10b70cc1..490ba8efe34cbe3f1e295b3d0d7242730348d87e 100755 (executable)
--- a/mailplate
+++ b/mailplate
@@ -3,41 +3,8 @@
 #
 # mailplate — reformat mail drafts according to templates
 #
-# This script reformats mail drafts according to a given template. The
-# template may be specified on the command line, but mailplate can also use
-# control information from the template files to automatically select an
-# appropriate template (--auto). A selection menu feature is planned (--menu).
-#
-# Applying a template means obtainined select data from an existing mail
-# message (unless --new is specified) and to fill it into appropriate slots in
-# the template. Messages are processed in three parts: headers, body, and
-# signature.
-#
-# The template can define two types of headers: mandatory and preservatory.
-# Mandatory headers take precedence over headers in the existing message and
-# thus overwrite them. Preservatory headers instruct mailplate to port their
-# data from the existing mail message. Headers in the existing message but not
-# defined in the template are dropped, unless --keep-unknown is given.
-#
-# Body and signature are separated by '-- '. If this sentinel is not found,
-# no signature is extracted.
-#
-# Templates can be interpolated and data filled into slots. Helper slots are
-# filled with the output of helper commands (which must be defined in the
-# configuration), environment variable slots are just that, and mail variable
-# slots can be filled with data obtained by running regexps or commands over
-# the message.
-#
-# This script can be run in multiple ways:
-#
-# As a filter, it applies a template to data from stdin and writes the result
-# to stdout.
-#
-# Given a file, it modifies the file, unless it cannot write to the file, in
-# which case it writes to stdout.
-#
-# When --editor is passed, the script spawns sensible-editor on the result. It
-# may thus be used as the editor for your mail user agent.
+# Please see the mailplate(1) manpage or the homepage for more information:
+#   http://madduck.net/code/mailplate/
 #
 # TODO: if headers like From are absent from the mail, they should not be kept
 # but replaced with a default.
@@ -86,6 +53,7 @@ HELPER_SLOT_TRAILER = ')'   # character ending a helper slot
 STD_HEADERS = ('From', 'To', 'Cc', 'Bcc', 'Subject', 'Reply-To', 'In-Reply-To')
 KEEP_HEADERS = { 'KEEP_FROM_HEADER' : STD_HEADERS[:1]
                , 'KEEP_STD_HEADERS' : STD_HEADERS[1:]
+               , 'KEEP_ALL_HEADERS' : STD_HEADERS
                }
 
 SIG_DELIM='\n-- \n'
@@ -414,10 +382,14 @@ for line in templ:
         l = line[:-1]
         if len(l) == 0:
             payload = '' # end of headers
-        elif l[0] == KEEP_SLOT_LEADER and KEEP_HEADERS.has_key(l[1:]):
-            # found predefined header slot keyword
-            for header in KEEP_HEADERS[l[1:]]:
-                headers[header.lower()] = (header, _keep_header)
+        elif l[0] == KEEP_SLOT_LEADER:
+            if KEEP_HEADERS.has_key(l[1:]):
+                # found predefined header slot keyword
+                for header in KEEP_HEADERS[l[1:]]:
+                    headers[header.lower()] = (header, _keep_header)
+            else:
+                err('unknown header slot ' + l + ' found')
+                sys.exit(posix.EX_CONFIG)
         else:
             header, content = l.split(':', 1)
             content = content.strip()