diff --git a/runtime/syntax/muttrc.vim b/runtime/syntax/muttrc.vim
index a95feca..cc77711 100644
--- a/runtime/syntax/muttrc.vim
+++ b/runtime/syntax/muttrc.vim
@@ -1,19 +1,11 @@
 " Vim syntax file
 " Language:	Mutt setup files
-" Maintainer:   Debian VIM Maintainers <pkg-vim-maintainers@lists.alioth.debian.org>
-" Former Maintainer: Preben 'Peppe' Guldberg <peppe-vim@wielders.org>
-" Contributor:	Gary Johnson <garyjohn@spk.agilent.com>
-" Last Change:	$LastChangedDate: 2006-04-16 22:06:40 -0400 (dom, 16 apr 2006) $
-" URL: http://svn.debian.org/wsvn/pkg-vim/trunk/runtime/syntax/muttrc.vim?op=file&rev=0&sc=0
-"
-" XXX This file is in need of a new maintainer, Debian VIM Maintainers maintain
-"     it only because patches have been submitted for it by Debian users and the
-"     former maintainer was MIA (Missing In Action), taking over its
-"     maintenance was thus the only way to include those patches.
-"     If you care about this file, and have time to maintain it please do so!
+" Original:	Preben 'Peppe' Guldberg <peppe-vim@wielders.org>
+" Maintainer:	Kyle Wheeler <kyle-muttrc.vim@memoryhole.net>
+" Last Change:	22 Apr 2006
 
-" XXX outdated comment
-" This file covers mutt version 1.4.2.1i
+" This file covers mutt version 1.5.11
+" Included are also a few features from 1.4.2.1
 
 " For version 5.x: Clear all syntax items
 " For version 6.x: Quit when a syntax file was already loaded
@@ -38,9 +30,24 @@
 syn match muttrcEscape		+[`|]+
 
 " The variables takes the following arguments
-syn match  muttrcString		"=\s*[^ #"']\+"lc=1 contains=muttrcEscape
-syn region muttrcString		start=+"+ms=e skip=+\\"+ end=+"+ contains=muttrcEscape,muttrcSet,muttrcUnset,muttrcReset,muttrcToggle,muttrcMacro,muttrcCommand
-syn region muttrcString		start=+'+ms=e skip=+\\'+ end=+'+ contains=muttrcEscape,muttrcSet,muttrcUnset,muttrcReset,muttrcToggle,muttrcMacro,muttrcCommand
+syn match  muttrcString		"=\s*[^ #"'`]\+"lc=1 contains=muttrcEscape
+syn region muttrcString		start=+"+ms=e skip=+\\"+ end=+"+ contains=muttrcEscape,muttrcSet,muttrcUnset,muttrcReset,muttrcToggle,muttrcMacro,muttrcCommand,muttrcAction
+syn region muttrcString		start=+'+ms=e skip=+\\'+ end=+'+ contains=muttrcEscape,muttrcSet,muttrcUnset,muttrcReset,muttrcToggle,muttrcMacro,muttrcCommand,muttrcAction
+
+syn region muttrcShellString	matchgroup=muttrcEscape keepend start=+`+ skip=+\\`+ end=+`+ contains=muttrcVarStr,muttrcVarBool,muttrcVarQuad,muttrcVarNum,muttrcCommand,muttrcSet
+
+syn match  muttrcRXChars	contained /[^\\][][.*?+]\+/hs=s+1
+syn match  muttrcRXChars	contained /[][|()][.*?+]*/
+syn match  muttrcRXChars	contained /'^/ms=s+1
+syn match  muttrcRXChars	contained /$'/me=e-1
+syn match  muttrcRXChars	contained /\\/
+syn region muttrcRXString	contained start=+'+ skip=+\\'+ end=+'+ contains=muttrcRXChars
+syn region muttrcRXString	contained start=+"+ skip=+\\"+ end=+"+ contains=muttrcRXChars
+
+syn region muttrcRXPat		contained start=+'+ skip=+\\'+ end=+'\s*+ keepend skipwhite contains=muttrcRXString nextgroup=muttrcRXPat
+syn region muttrcRXPat		contained start=+"+ skip=+\\"+ end=+"\s*+ keepend skipwhite contains=muttrcRXString nextgroup=muttrcRXPat
+syn match muttrcRXPat		contained /[^-'"#!]\S\+\%(\s\|$\)/ skipwhite contains=muttrcRXChars nextgroup=muttrcRXPat
+syn match muttrcRXDef 		contained "-rx\s\+" skipwhite nextgroup=muttrcRXPat
 
 syn match muttrcSpecial		+\(['"]\)!\1+
 
@@ -48,162 +55,361 @@
 syn match muttrcNumber		/=\s*\d\+/lc=1
 syn match muttrcNumber		/=\s*"\d\+"/lc=1
 syn match muttrcNumber		/=\s*'\d\+'/lc=1
-syn match muttrcQuadopt		+=\s*\(ask-\)\=\(yes\|no\)+lc=1
-syn match muttrcQuadopt		+=\s*"\(ask-\)\=\(yes\|no\)"+lc=1
-syn match muttrcQuadopt		+=\s*'\(ask-\)\=\(yes\|no\)'+lc=1
+syn match muttrcQuadopt		+=\s*\%(ask-\)\=\%(yes\|no\)+lc=1
+syn match muttrcQuadopt		+=\s*"\%(ask-\)\=\%(yes\|no\)"+lc=1
+syn match muttrcQuadopt		+=\s*'\%(ask-\)\=\%(yes\|no\)'+lc=1
 
 " Now catch some email addresses and headers (purified version from mail.vim)
 syn match muttrcEmail		"[a-zA-Z0-9._-]\+@[a-zA-Z0-9./-]\+"
-syn match muttrcHeader		"\<\(From\|To\|Cc\|Bcc\|Reply-To\|Subject\|Return-Path\|Received\|Date\|Replied\|Attach\)\>:\="
+syn match muttrcHeader		"\<\%(From\|To\|C[Cc]\|B[Cc][Cc]\|Reply-To\|Subject\|Return-Path\|Received\|Date\|Replied\|Attach\)\>:\="
 
-syn match   muttrcKeySpecial	contained +\(\\[Cc'"]\|\^\|\\[01]\d\{2}\)+
-syn match   muttrcKey		contained "\S\+"			contains=muttrcKeySpecial
-syn region  muttrcKey		contained start=+"+ skip=+\\\\\|\\"+ end=+"+	contains=muttrcKeySpecial
-syn region  muttrcKey		contained start=+'+ skip=+\\\\\|\\'+ end=+'+	contains=muttrcKeySpecial
-syn match   muttrcKeyName	contained "\<f\(\d\|10\)\>"
+syn match   muttrcKeySpecial	contained +\%(\\[Cc'"]\|\^\|\\[01]\d\{2}\)+
+syn match   muttrcKey		contained "\S\+"			contains=muttrcKeySpecial,muttrcKeyName
+syn region  muttrcKey		contained start=+"+ skip=+\\\\\|\\"+ end=+"+	contains=muttrcKeySpecial,muttrcKeyName
+syn region  muttrcKey		contained start=+'+ skip=+\\\\\|\\'+ end=+'+	contains=muttrcKeySpecial,muttrcKeyName
+syn match   muttrcKeyName	contained "\<f\%(\d\|10\)\>"
 syn match   muttrcKeyName	contained "\\[trne]"
-syn match   muttrcKeyName	contained "<\(BackSpace\|Delete\|Down\|End\|Enter\|Esc\|Home\|Insert\|Left\|PageDown\|PageUp\|Return\|Right\|Space\|Tab\|Up\)>"
+syn match   muttrcKeyName	contained "\c<\%(BackSpace\|Delete\|Down\|End\|Enter\|Esc\|Home\|Insert\|Left\|PageDown\|PageUp\|Return\|Right\|Space\|Tab\|Up\)>"
 
-syn keyword muttrcVarBool	contained allow_8bit allow_ansi arrow_cursor ascii_chars askbcc askcc attach_split
-syn keyword muttrcVarBool	contained auto_tag autoedit beep beep_new bounce_delivered check_new collapse_unread
-syn keyword muttrcVarBool	contained confirmappend confirmcreate delete_untag digest_collapse duplicate_threads
-syn keyword muttrcVarBool	contained edit_hdrs edit_headers encode_from envelope_from fast_reply fcc_attach
-syn keyword muttrcVarBool	contained fcc_clear followup_to force_name forw_decode forw_decrypt forw_quote
-syn keyword muttrcVarBool	contained forward_decode forward_decrypt forward_quote hdrs header help hidden_host
-syn keyword muttrcVarBool	contained hide_limited hide_missing hide_top_limited hide_top_missing ignore_list_reply_to
-syn keyword muttrcVarBool	contained imap_force_ssl imap_list_subscribed imap_passive imap_peek imap_servernoise
-syn keyword muttrcVarBool	contained implicit_autoview keep_flagged mailcap_sanitize maildir_trash mark_old markers
-syn keyword muttrcVarBool	contained menu_scroll meta_key metoo mh_purge mime_forward_decode pager_stop pgp_autoencrypt
-syn keyword muttrcVarBool	contained pgp_autosign pgp_ignore_subkeys pgp_long_ids pgp_replyencrypt pgp_replysign
-syn keyword muttrcVarBool	contained pgp_replysignencrypted pgp_retainable_sigs pgp_show_unusable pgp_strict_enc
-syn keyword muttrcVarBool	contained pipe_decode pipe_split pop_auth_try_all pop_last print_decode print_split
-syn keyword muttrcVarBool	contained prompt_after read_only reply_self resolve reverse_alias reverse_name
-syn keyword muttrcVarBool	contained reverse_realname rfc2047_parameters save_address save_empty save_name score
-syn keyword muttrcVarBool	contained sig_dashes sig_on_top smart_wrap sort_re ssl_use_sslv2 ssl_use_sslv3 ssl_use_tlsv1
-syn keyword muttrcVarBool	contained ssl_usesystemcerts status_on_top strict_threads suspend text_flowed thorough_search
-syn keyword muttrcVarBool	contained thread_received tilde uncollapse_jump use_8bitmime use_domain use_from use_ipv6
+syn keyword muttrcVarBool	contained allow_8bit allow_ansi arrow_cursor ascii_chars askbcc
+syn keyword muttrcVarBool	contained askcc attach_split auto_tag autoedit beep beep_new
+syn keyword muttrcVarBool	contained bounce_delivered braille_friendly check_new collapse_unread
+syn keyword muttrcVarBool	contained confirmappend confirmcreate crypt_autoencrypt crypt_autopgp
+syn keyword muttrcVarBool	contained crypt_autosign crypt_autosmime crypt_replyencrypt
+syn keyword muttrcVarBool	contained crypt_replysign crypt_replysignencrypted crypt_timestamp
+syn keyword muttrcVarBool	contained crypt_use_gpgme delete_untag digest_collapse duplicate_threads
+syn keyword muttrcVarBool	contained edit_hdrs edit_headers encode_from envelope_from fast_reply
+syn keyword muttrcVarBool	contained fcc_attach fcc_clear followup_to force_name forw_decode
+syn keyword muttrcVarBool	contained forw_decrypt forw_quote forward_decode forward_decrypt
+syn keyword muttrcVarBool	contained forward_quote hdrs header help hidden_host hide_limited
+syn keyword muttrcVarBool	contained hide_missing hide_thread_subject hide_top_limited
+syn keyword muttrcVarBool	contained hide_top_missing ignore_list_reply_to imap_check_subscribed
+syn keyword muttrcVarBool	contained imap_list_subscribed imap_passive imap_peek imap_servernoise
+syn keyword muttrcVarBool	contained implicit_autoview include_onlyfirst keep_flagged
+syn keyword muttrcVarBool	contained mailcap_sanitize maildir_header_cache_verify maildir_trash
+syn keyword muttrcVarBool	contained mark_old markers menu_move_off menu_scroll meta_key
+syn keyword muttrcVarBool	contained metoo mh_purge mime_forward_decode narrow_tree pager_stop
+syn keyword muttrcVarBool	contained pgp_auto_decode pgp_auto_traditional pgp_autoencrypt
+syn keyword muttrcVarBool	contained pgp_autoinline pgp_autosign pgp_check_exit
+syn keyword muttrcVarBool	contained pgp_create_traditional pgp_ignore_subkeys pgp_long_ids
+syn keyword muttrcVarBool	contained pgp_replyencrypt pgp_replyinline pgp_replysign
+syn keyword muttrcVarBool	contained pgp_replysignencrypted pgp_retainable_sigs pgp_show_unusable
+syn keyword muttrcVarBool	contained pgp_strict_enc pgp_use_gpg_agent pipe_decode pipe_split
+syn keyword muttrcVarBool	contained pop_auth_try_all pop_last print_decode print_split
+syn keyword muttrcVarBool	contained prompt_after read_only reply_self resolve reverse_alias
+syn keyword muttrcVarBool	contained reverse_name reverse_realname rfc2047_parameters save_address
+syn keyword muttrcVarBool	contained save_empty save_name score sig_dashes sig_on_top
+syn keyword muttrcVarBool	contained smart_wrap smime_ask_cert_label smime_decrypt_use_default_key
+syn keyword muttrcVarBool	contained smime_is_default sort_re ssl_force_tls ssl_use_sslv2
+syn keyword muttrcVarBool	contained ssl_use_sslv3 ssl_use_tlsv1 ssl_usesystemcerts status_on_top
+syn keyword muttrcVarBool	contained strict_threads suspend text_flowed thorough_search
+syn keyword muttrcVarBool	contained thread_received tilde uncollapse_jump use_8bitmime
+syn keyword muttrcVarBool	contained use_domain use_envelope_from use_from use_idn use_ipv6
 syn keyword muttrcVarBool	contained user_agent wait_key weed wrap_search write_bcc
 
-syn keyword muttrcVarBool	contained noallow_8bit noallow_ansi noarrow_cursor noascii_chars noaskbcc noaskcc
-syn keyword muttrcVarBool	contained noattach_split noauto_tag noautoedit nobeep nobeep_new nobounce_delivered
-syn keyword muttrcVarBool	contained nocheck_new nocollapse_unread noconfirmappend noconfirmcreate nodelete_untag
-syn keyword muttrcVarBool	contained nodigest_collapse noduplicate_threads noedit_hdrs noedit_headers noencode_from
-syn keyword muttrcVarBool	contained noenvelope_from nofast_reply nofcc_attach nofcc_clear nofollowup_to noforce_name
-syn keyword muttrcVarBool	contained noforw_decode noforw_decrypt noforw_quote noforward_decode noforward_decrypt
-syn keyword muttrcVarBool	contained noforward_quote nohdrs noheader nohelp nohidden_host nohide_limited nohide_missing
-syn keyword muttrcVarBool	contained nohide_top_limited nohide_top_missing noignore_list_reply_to noimap_force_ssl
+syn keyword muttrcVarBool	contained noallow_8bit noallow_ansi noarrow_cursor noascii_chars noaskbcc
+syn keyword muttrcVarBool	contained noaskcc noattach_split noauto_tag noautoedit nobeep nobeep_new
+syn keyword muttrcVarBool	contained nobounce_delivered nobraille_friendly nocheck_new nocollapse_unread
+syn keyword muttrcVarBool	contained noconfirmappend noconfirmcreate nocrypt_autoencrypt nocrypt_autopgp
+syn keyword muttrcVarBool	contained nocrypt_autosign nocrypt_autosmime nocrypt_replyencrypt
+syn keyword muttrcVarBool	contained nocrypt_replysign nocrypt_replysignencrypted nocrypt_timestamp
+syn keyword muttrcVarBool	contained nocrypt_use_gpgme nodelete_untag nodigest_collapse noduplicate_threads
+syn keyword muttrcVarBool	contained noedit_hdrs noedit_headers noencode_from noenvelope_from nofast_reply
+syn keyword muttrcVarBool	contained nofcc_attach nofcc_clear nofollowup_to noforce_name noforw_decode
+syn keyword muttrcVarBool	contained noforw_decrypt noforw_quote noforward_decode noforward_decrypt
+syn keyword muttrcVarBool	contained noforward_quote nohdrs noheader nohelp nohidden_host nohide_limited
+syn keyword muttrcVarBool	contained nohide_missing nohide_thread_subject nohide_top_limited
+syn keyword muttrcVarBool	contained nohide_top_missing noignore_list_reply_to noimap_check_subscribed
 syn keyword muttrcVarBool	contained noimap_list_subscribed noimap_passive noimap_peek noimap_servernoise
-syn keyword muttrcVarBool	contained noimplicit_autoview nokeep_flagged nomailcap_sanitize nomaildir_trash nomark_old
-syn keyword muttrcVarBool	contained nomarkers nomenu_scroll nometa_key nometoo nomh_purge nomime_forward_decode
-syn keyword muttrcVarBool	contained nopager_stop nopgp_autoencrypt nopgp_autosign nopgp_ignore_subkeys nopgp_long_ids
-syn keyword muttrcVarBool	contained nopgp_replyencrypt nopgp_replysign nopgp_replysignencrypted nopgp_retainable_sigs
-syn keyword muttrcVarBool	contained nopgp_show_unusable nopgp_strict_enc nopipe_decode nopipe_split nopop_auth_try_all
-syn keyword muttrcVarBool	contained nopop_last noprint_decode noprint_split noprompt_after noread_only noreply_self
-syn keyword muttrcVarBool	contained noresolve noreverse_alias noreverse_name noreverse_realname norfc2047_parameters
-syn keyword muttrcVarBool	contained nosave_address nosave_empty nosave_name noscore nosig_dashes nosig_on_top
-syn keyword muttrcVarBool	contained nosmart_wrap nosort_re nossl_use_sslv2 nossl_use_sslv3 nossl_use_tlsv1
-syn keyword muttrcVarBool	contained nossl_usesystemcerts nostatus_on_top nostrict_threads nosuspend notext_flowed
-syn keyword muttrcVarBool	contained nothorough_search nothread_received notilde nouncollapse_jump nouse_8bitmime
-syn keyword muttrcVarBool	contained nouse_domain nouse_from nouse_ipv6 nouser_agent nowait_key noweed nowrap_search
-syn keyword muttrcVarBool	contained nowrite_bcc
+syn keyword muttrcVarBool	contained noimplicit_autoview noinclude_onlyfirst nokeep_flagged
+syn keyword muttrcVarBool	contained nomailcap_sanitize nomaildir_header_cache_verify nomaildir_trash
+syn keyword muttrcVarBool	contained nomark_old nomarkers nomenu_move_off nomenu_scroll nometa_key
+syn keyword muttrcVarBool	contained nometoo nomh_purge nomime_forward_decode nonarrow_tree nopager_stop
+syn keyword muttrcVarBool	contained nopgp_auto_decode nopgp_auto_traditional nopgp_autoencrypt
+syn keyword muttrcVarBool	contained nopgp_autoinline nopgp_autosign nopgp_check_exit
+syn keyword muttrcVarBool	contained nopgp_create_traditional nopgp_ignore_subkeys nopgp_long_ids
+syn keyword muttrcVarBool	contained nopgp_replyencrypt nopgp_replyinline nopgp_replysign
+syn keyword muttrcVarBool	contained nopgp_replysignencrypted nopgp_retainable_sigs nopgp_show_unusable
+syn keyword muttrcVarBool	contained nopgp_strict_enc nopgp_use_gpg_agent nopipe_decode nopipe_split
+syn keyword muttrcVarBool	contained nopop_auth_try_all nopop_last noprint_decode noprint_split
+syn keyword muttrcVarBool	contained noprompt_after noread_only noreply_self noresolve noreverse_alias
+syn keyword muttrcVarBool	contained noreverse_name noreverse_realname norfc2047_parameters nosave_address
+syn keyword muttrcVarBool	contained nosave_empty nosave_name noscore nosig_dashes nosig_on_top
+syn keyword muttrcVarBool	contained nosmart_wrap nosmime_ask_cert_label nosmime_decrypt_use_default_key
+syn keyword muttrcVarBool	contained nosmime_is_default nosort_re nossl_force_tls nossl_use_sslv2
+syn keyword muttrcVarBool	contained nossl_use_sslv3 nossl_use_tlsv1 nossl_usesystemcerts nostatus_on_top
+syn keyword muttrcVarBool	contained nostrict_threads nosuspend notext_flowed nothorough_search
+syn keyword muttrcVarBool	contained nothread_received notilde nouncollapse_jump nouse_8bitmime
+syn keyword muttrcVarBool	contained nouse_domain nouse_envelope_from nouse_from nouse_idn nouse_ipv6
+syn keyword muttrcVarBool	contained nouser_agent nowait_key noweed nowrap_search nowrite_bcc
 
-syn keyword muttrcVarBool	contained invallow_8bit invallow_ansi invarrow_cursor invascii_chars invaskbcc invaskcc
-syn keyword muttrcVarBool	contained invattach_split invauto_tag invautoedit invbeep invbeep_new invbounce_delivered
-syn keyword muttrcVarBool	contained invcheck_new invcollapse_unread invconfirmappend invconfirmcreate invdelete_untag
-syn keyword muttrcVarBool	contained invdigest_collapse invduplicate_threads invedit_hdrs invedit_headers invencode_from
-syn keyword muttrcVarBool	contained invenvelope_from invfast_reply invfcc_attach invfcc_clear invfollowup_to invforce_name
-syn keyword muttrcVarBool	contained invforw_decode invforw_decrypt invforw_quote invforward_decode invforward_decrypt
+syn keyword muttrcVarBool	contained invallow_8bit invallow_ansi invarrow_cursor invascii_chars invaskbcc
+syn keyword muttrcVarBool	contained invaskcc invattach_split invauto_tag invautoedit invbeep invbeep_new
+syn keyword muttrcVarBool	contained invbounce_delivered invbraille_friendly invcheck_new invcollapse_unread
+syn keyword muttrcVarBool	contained invconfirmappend invconfirmcreate invcrypt_autoencrypt invcrypt_autopgp
+syn keyword muttrcVarBool	contained invcrypt_autosign invcrypt_autosmime invcrypt_replyencrypt
+syn keyword muttrcVarBool	contained invcrypt_replysign invcrypt_replysignencrypted invcrypt_timestamp
+syn keyword muttrcVarBool	contained invcrypt_use_gpgme invdelete_untag invdigest_collapse invduplicate_threads
+syn keyword muttrcVarBool	contained invedit_hdrs invedit_headers invencode_from invenvelope_from invfast_reply
+syn keyword muttrcVarBool	contained invfcc_attach invfcc_clear invfollowup_to invforce_name invforw_decode
+syn keyword muttrcVarBool	contained invforw_decrypt invforw_quote invforward_decode invforward_decrypt
 syn keyword muttrcVarBool	contained invforward_quote invhdrs invheader invhelp invhidden_host invhide_limited
-syn keyword muttrcVarBool	contained invhide_missing invhide_top_limited invhide_top_missing invignore_list_reply_to
-syn keyword muttrcVarBool	contained invimap_force_ssl invimap_list_subscribed invimap_passive invimap_peek
-syn keyword muttrcVarBool	contained invimap_servernoise invimplicit_autoview invkeep_flagged invmailcap_sanitize
-syn keyword muttrcVarBool	contained invmaildir_trash invmark_old invmarkers invmenu_scroll invmeta_key invmetoo
-syn keyword muttrcVarBool	contained invmh_purge invmime_forward_decode invpager_stop invpgp_autoencrypt invpgp_autosign
-syn keyword muttrcVarBool	contained invpgp_ignore_subkeys invpgp_long_ids invpgp_replyencrypt invpgp_replysign
-syn keyword muttrcVarBool	contained invpgp_replysignencrypted invpgp_retainable_sigs invpgp_show_unusable invpgp_strict_enc
-syn keyword muttrcVarBool	contained invpipe_decode invpipe_split invpop_auth_try_all invpop_last invprint_decode
-syn keyword muttrcVarBool	contained invprint_split invprompt_after invread_only invreply_self invresolve invreverse_alias
-syn keyword muttrcVarBool	contained invreverse_name invreverse_realname invrfc2047_parameters invsave_address invsave_empty
-syn keyword muttrcVarBool	contained invsave_name invscore invsig_dashes invsig_on_top invsmart_wrap invsort_re
-syn keyword muttrcVarBool	contained invssl_use_sslv2 invssl_use_sslv3 invssl_use_tlsv1 invssl_usesystemcerts
-syn keyword muttrcVarBool	contained invstatus_on_top invstrict_threads invsuspend invtext_flowed invthorough_search
-syn keyword muttrcVarBool	contained invthread_received invtilde invuncollapse_jump invuse_8bitmime invuse_domain invuse_from
-syn keyword muttrcVarBool	contained invuse_ipv6 invuser_agent invwait_key invweed invwrap_search invwrite_bcc
-syn keyword muttrcVarBool	contained crypt_autosign crypt_autoencrypt xterm_set_titles
-syn keyword muttrcVarBool       contained maildir_header_cache_verify
+syn keyword muttrcVarBool	contained invhide_missing invhide_thread_subject invhide_top_limited
+syn keyword muttrcVarBool	contained invhide_top_missing invignore_list_reply_to invimap_check_subscribed
+syn keyword muttrcVarBool	contained invimap_list_subscribed invimap_passive invimap_peek invimap_servernoise
+syn keyword muttrcVarBool	contained invimplicit_autoview invinclude_onlyfirst invkeep_flagged
+syn keyword muttrcVarBool	contained invmailcap_sanitize invmaildir_header_cache_verify invmaildir_trash
+syn keyword muttrcVarBool	contained invmark_old invmarkers invmenu_move_off invmenu_scroll invmeta_key
+syn keyword muttrcVarBool	contained invmetoo invmh_purge invmime_forward_decode invnarrow_tree invpager_stop
+syn keyword muttrcVarBool	contained invpgp_auto_decode invpgp_auto_traditional invpgp_autoencrypt
+syn keyword muttrcVarBool	contained invpgp_autoinline invpgp_autosign invpgp_check_exit
+syn keyword muttrcVarBool	contained invpgp_create_traditional invpgp_ignore_subkeys invpgp_long_ids
+syn keyword muttrcVarBool	contained invpgp_replyencrypt invpgp_replyinline invpgp_replysign
+syn keyword muttrcVarBool	contained invpgp_replysignencrypted invpgp_retainable_sigs invpgp_show_unusable
+syn keyword muttrcVarBool	contained invpgp_strict_enc invpgp_use_gpg_agent invpipe_decode invpipe_split
+syn keyword muttrcVarBool	contained invpop_auth_try_all invpop_last invprint_decode invprint_split
+syn keyword muttrcVarBool	contained invprompt_after invread_only invreply_self invresolve invreverse_alias
+syn keyword muttrcVarBool	contained invreverse_name invreverse_realname invrfc2047_parameters invsave_address
+syn keyword muttrcVarBool	contained invsave_empty invsave_name invscore invsig_dashes invsig_on_top
+syn keyword muttrcVarBool	contained invsmart_wrap invsmime_ask_cert_label invsmime_decrypt_use_default_key
+syn keyword muttrcVarBool	contained invsmime_is_default invsort_re invssl_force_tls invssl_use_sslv2
+syn keyword muttrcVarBool	contained invssl_use_sslv3 invssl_use_tlsv1 invssl_usesystemcerts invstatus_on_top
+syn keyword muttrcVarBool	contained invstrict_threads invsuspend invtext_flowed invthorough_search
+syn keyword muttrcVarBool	contained invthread_received invtilde invuncollapse_jump invuse_8bitmime
+syn keyword muttrcVarBool	contained invuse_domain invuse_envelope_from invuse_from invuse_idn invuse_ipv6
+syn keyword muttrcVarBool	contained invuser_agent invwait_key invweed invwrap_search invwrite_bcc
 
-syn keyword muttrcVarQuad	contained abort_nosubject abort_unmodified copy delete honor_followup_to include mime_forward
-syn keyword muttrcVarQuad	contained mime_forward_rest mime_fwd move pgp_create_traditional pgp_verify_sig pop_delete
-syn keyword muttrcVarQuad	contained pop_reconnect postpone print quit recall reply_to ssl_starttls
+syn keyword muttrcVarQuad	contained abort_nosubject abort_unmodified bounce copy
+syn keyword muttrcVarQuad	contained crypt_verify_sig delete forward_edit honor_followup_to
+syn keyword muttrcVarQuad	contained include mime_forward mime_forward_rest mime_fwd move
+syn keyword muttrcVarQuad	contained pgp_mime_auto pgp_verify_sig pop_delete pop_reconnect
+syn keyword muttrcVarQuad	contained postpone print quit recall reply_to ssl_starttls
 
-syn keyword muttrcVarQuad	contained noabort_nosubject noabort_unmodified nocopy nodelete nohonor_followup_to
-syn keyword muttrcVarQuad	contained noinclude nomime_forward nocontained nomime_forward_rest nomime_fwd nomove
-syn keyword muttrcVarQuad	contained nopgp_create_traditional nopgp_verify_sig nopop_delete nopop_reconnect
+syn keyword muttrcVarQuad	contained noabort_nosubject noabort_unmodified nobounce nocopy
+syn keyword muttrcVarQuad	contained nocrypt_verify_sig nodelete noforward_edit nohonor_followup_to
+syn keyword muttrcVarQuad	contained noinclude nomime_forward nomime_forward_rest nomime_fwd nomove
+syn keyword muttrcVarQuad	contained nopgp_mime_auto nopgp_verify_sig nopop_delete nopop_reconnect
 syn keyword muttrcVarQuad	contained nopostpone noprint noquit norecall noreply_to nossl_starttls
 
-syn keyword muttrcVarQuad	contained invabort_nosubject invabort_unmodified invcopy invdelete invhonor_followup_to
-syn keyword muttrcVarQuad	contained invinclude invmime_forward invcontained invmime_forward_rest invmime_fwd invmove
-syn keyword muttrcVarQuad	contained invpgp_create_traditional invpgp_verify_sig invpop_delete invpop_reconnect
+syn keyword muttrcVarQuad	contained invabort_nosubject invabort_unmodified invbounce invcopy
+syn keyword muttrcVarQuad	contained invcrypt_verify_sig invdelete invforward_edit invhonor_followup_to
+syn keyword muttrcVarQuad	contained invinclude invmime_forward invmime_forward_rest invmime_fwd invmove
+syn keyword muttrcVarQuad	contained invpgp_mime_auto invpgp_verify_sig invpop_delete invpop_reconnect
 syn keyword muttrcVarQuad	contained invpostpone invprint invquit invrecall invreply_to invssl_starttls
 
-syn keyword muttrcVarNum	contained connect_timeout history imap_keepalive mail_check pager_context pager_index_lines
-syn keyword muttrcVarNum	contained pgp_timeout pop_checkinterval read_inc score_threshold_delete score_threshold_flag
-syn keyword muttrcVarNum	contained score_threshold_read sendmail_wait sleep_time timeout wrapmargin write_inc
+syn keyword muttrcVarNum	contained connect_timeout history imap_keepalive mail_check menu_context net_inc
+syn keyword muttrcVarNum	contained pager_context pager_index_lines pgp_timeout pop_checkinterval read_inc
+syn keyword muttrcVarNum	contained score_threshold_delete score_threshold_flag score_threshold_read
+syn keyword muttrcVarNum	contained sendmail_wait sleep_time smime_timeout ssl_min_dh_prime_bits timeout
+syn keyword muttrcVarNum	contained wrapmargin write_inc
 
-syn keyword muttrcVarStr	contained alias_file alias_format attach_format attach_sep attribution certificate_file
-syn keyword muttrcVarStr	contained charset compose_format date_format default_hook display_filter dotlock_program dsn_notify
-syn keyword muttrcVarStr	contained dsn_return editor entropy_file escape folder folder_format forw_format forward_format
-syn keyword muttrcVarStr	contained from gecos_mask hdr_format hostname imap_authenticators imap_delim_chars
-syn keyword muttrcVarStr	contained imap_home_namespace imap_pass imap_user indent_str indent_string index_format ispell
-syn keyword muttrcVarStr	contained locale mailcap_path mask mbox mbox_type message_format mh_seq_flagged mh_seq_replied
+syn keyword muttrcVarStr	contained alias_file alias_format attach_format attach_sep attribution
+syn keyword muttrcVarStr	contained certificate_file charset compose_format config_charset content_type
+syn keyword muttrcVarStr	contained date_format default_hook display_filter dotlock_program dsn_notify
+syn keyword muttrcVarStr	contained dsn_return editor entropy_file envelope_from_address escape folder
+syn keyword muttrcVarStr	contained folder_format forw_format forward_format from gecos_mask hdr_format
+syn keyword muttrcVarStr	contained header_cache header_cache_pagesize hostname imap_authenticators
+syn keyword muttrcVarStr	contained imap_delim_chars imap_headers imap_home_namespace imap_login imap_pass
+syn keyword muttrcVarStr	contained imap_user indent_str indent_string index_format ispell locale mailcap_path
+syn keyword muttrcVarStr	contained mask mbox mbox_type message_format mh_seq_flagged mh_seq_replied
 syn keyword muttrcVarStr	contained mh_seq_unseen mix_entry_format mixmaster msg_format pager pager_format
-syn keyword muttrcVarStr	contained pgp_clearsign_command pgp_decode_command pgp_decrypt_command pgp_encrypt_only_command
-syn keyword muttrcVarStr	contained pgp_encrypt_sign_command pgp_entry_format pgp_export_command pgp_getkeys_command
-syn keyword muttrcVarStr	contained pgp_good_sign pgp_import_command pgp_list_pubring_command pgp_list_secring_command
-syn keyword muttrcVarStr	contained pgp_sign_as pgp_sign_command pgp_sort_keys pgp_verify_command pgp_verify_key_command
-syn keyword muttrcVarStr	contained pipe_sep pop_authenticators pop_host pop_pass pop_user post_indent_str post_indent_string
-syn keyword muttrcVarStr	contained postponed preconnect print_cmd print_command query_command quote_regexp realname record
-syn keyword muttrcVarStr	contained reply_regexp send_charset sendmail shell signature simple_search smileys sort sort_alias
-syn keyword muttrcVarStr	contained sort_aux sort_browser spoolfile status_chars status_format tmpdir to_chars tunnel visual
-syn keyword muttrcVarStr	contained header_cache header_cache_pagesize 
+syn keyword muttrcVarStr	contained pgp_clearsign_command pgp_decode_command pgp_decrypt_command
+syn keyword muttrcVarStr	contained pgp_encrypt_only_command pgp_encrypt_sign_command pgp_entry_format
+syn keyword muttrcVarStr	contained pgp_export_command pgp_getkeys_command pgp_good_sign pgp_import_command
+syn keyword muttrcVarStr	contained pgp_list_pubring_command pgp_list_secring_command pgp_sign_as
+syn keyword muttrcVarStr	contained pgp_sign_command pgp_sort_keys pgp_verify_command pgp_verify_key_command
+syn keyword muttrcVarStr	contained pipe_sep pop_authenticators pop_host pop_pass pop_user post_indent_str
+syn keyword muttrcVarStr	contained post_indent_string postponed preconnect print_cmd print_command
+syn keyword muttrcVarStr	contained query_command quote_regexp realname record reply_regexp send_charset
+syn keyword muttrcVarStr	contained sendmail shell signature simple_search smileys smime_ca_location
+syn keyword muttrcVarStr	contained smime_certificates smime_decrypt_command smime_default_key
+syn keyword muttrcVarStr	contained smime_encrypt_command smime_encrypt_with smime_get_cert_command
+syn keyword muttrcVarStr	contained smime_get_cert_email_command smime_get_signer_cert_command
+syn keyword muttrcVarStr	contained smime_import_cert_command smime_keys smime_pk7out_command smime_sign_as
+syn keyword muttrcVarStr	contained smime_sign_command smime_sign_opaque_command smime_verify_command
+syn keyword muttrcVarStr	contained smime_verify_opaque_command sort sort_alias sort_aux sort_browser
+syn keyword muttrcVarStr	contained spam_separator spoolfile ssl_ca_certificates_file ssl_client_cert
+syn keyword muttrcVarStr	contained status_chars status_format tmpdir to_chars tunnel visual
+
+" Present in 1.4.2.1 (pgp_create_traditional was a bool then)
+syn keyword muttrcVarBool	contained imap_force_ssl imap_force_ssl noinvimap_force_ssl
+"syn keyword muttrcVarQuad	contained pgp_create_traditional nopgp_create_traditional invpgp_create_traditional
+syn keyword muttrcVarStr	contained alternates
 
 syn keyword muttrcMenu		contained alias attach browser compose editor index pager postpone pgp mix query generic
+syn match muttrcMenuList "\S\+" contained contains=muttrcMenu
+syn match muttrcMenuCommas /,/ contained
 
-syn keyword muttrcCommand	account-hook auto_view alternative_order charset-hook uncolor exec fcc-hook fcc-save-hook
-syn keyword muttrcCommand	folder-hook hdr_order iconv-hook ignore lists mailboxes message-hook mbox-hook my_hdr
-syn keyword muttrcCommand	pgp-hook push save-hook score send-hook source subscribe unalias unauto_view unhdr_order
-syn keyword muttrcCommand	unhook unignore unlists unmono unmy_hdr unscore unsubscribe
-syn keyword muttrcCommand	send2-hook alternates unalternates
+syn keyword muttrcCommand	auto_view alternative_order charset-hook exec unalternative_order
+syn keyword muttrcCommand	hdr_order iconv-hook ignore mailboxes my_hdr unmailboxes
+syn keyword muttrcCommand	pgp-hook push score source unauto_view unhdr_order
+syn keyword muttrcCommand	unhook unignore unmono unmy_hdr unscore
+syn keyword muttrcCommand	mime_lookup unmime_lookup spam ungroup
+syn keyword muttrcCommand	nospam unalternative_order
+
+syn match muttrcAttachmentsMimeType contained "[*a-z0-9_-]\+/[*a-z0-9._-]\+\s*" skipwhite nextgroup=muttrcAttachmentsMimeType
+syn match muttrcAttachmentsFlag contained "[+-]\%([AI]\|inline\|attachment\)\s\+" skipwhite nextgroup=muttrcAttachmentsMimeType
+syn match muttrcAttachmentsLine "^\s*\%(un\)\?attachments\s\+" skipwhite nextgroup=muttrcAttachmentsFlag
+
+syn match muttrcUnHighlightSpace contained "\%(\s\+\|\\$\)"
+
+syn keyword muttrcListsKeyword	contained lists unlists
+syn region muttrcListsLine	keepend start=+^\s*\%(un\)\?lists\s+ skip=+\\$+ end=+$+ contains=muttrcListsKeyword,muttrcRXPat,muttrcGroupDef,muttrcUnHighlightSpace,muttrcComment
+
+syn keyword muttrcSubscribeKeyword	contained subscribe unsubscribe
+syn region muttrcSubscribeLine 	keepend start=+^\s*\%(un\)\?subscribe\s+ skip=+\\$+ end=+$+ contains=muttrcSubscribeKeyword,muttrcRXPat,muttrcGroupDef,muttrcUnHighlightSpace,muttrcComment
+
+syn keyword muttrcAlternateKeyword contained alternates unalternates
+syn region muttrcAlternatesLine keepend start=+^\s*\%(un\)\?alternates\s+ skip=+\\$+ end=+$+ contains=muttrcAlternateKeyword,muttrcGroupDef,muttrcRXPat,muttrcUnHighlightSpace,muttrcComment
+
+syn match muttrcVariable	"\$[a-zA-Z_-]\+"
+
+syn match muttrcBadAction	contained "[^<>]\+" contains=muttrcEmail
+syn match muttrcFunction	contained "\<\%(attach\|bounce\|copy\|delete\|display\|flag\|forward\|parent\|pipe\|postpone\|print\|recall\|resent\|save\|send\|tag\|undelete\)-message\>"
+syn match muttrcFunction	contained "\<\%(delete\|next\|previous\|read\|tag\|undelete\)-thread\>"
+syn match muttrcFunction	contained "\<\%(backward\|capitalize\|downcase\|forward\|kill\|upcase\)-word\>"
+syn match muttrcFunction	contained "\<\%(delete\|filter\|first\|last\|next\|pipe\|previous\|print\|save\|select\|tag\|undelete\)-entry\>"
+syn match muttrcFunction	contained "\<attach-\%(file\|key\)\>"
+syn match muttrcFunction	contained "\<change-\%(dir\|folder\|folder-readonly\)\>"
+syn match muttrcFunction	contained "\<check-\%(new\|traditional-pgp\)\>"
+syn match muttrcFunction	contained "\<current-\%(bottom\|middle\|top\)\>"
+syn match muttrcFunction	contained "\<decode-\%(copy\|save\)\>"
+syn match muttrcFunction	contained "\<delete-\%(char\|pattern\|subthread\)\>"
+syn match muttrcFunction	contained "\<display-\%(address\|toggle-weed\)\>"
+syn match muttrcFunction	contained "\<edit\%(-\%(bcc\|cc\|description\|encoding\|fcc\|file\|from\|headers\|mime\|reply-to\|subject\|to\|type\)\)\?\>"
+syn match muttrcFunction	contained "\<enter-\%(command\|mask\)\>"
+syn match muttrcFunction	contained "\<half-\%(up\|down\)\>"
+syn match muttrcFunction	contained "\<history-\%(up\|down\)\>"
+syn match muttrcFunction	contained "\<kill-\%(eol\|eow\|line\)\>"
+syn match muttrcFunction	contained "\<next-\%(line\|new\|page\|subthread\|undeleted\|unread\)\>"
+syn match muttrcFunction	contained "\<previous-\%(line\|new\|page\|subthread\|undeleted\|unread\)\>"
+syn match muttrcFunction	contained "\<search\%(-\%(next\|opposite\|reverse\|toggle\)\)\?\>"
+syn match muttrcFunction	contained "\<show-\%(limit\|version\)\>"
+syn match muttrcFunction	contained "\<sort-\%(mailbox\|reverse\)\>"
+syn match muttrcFunction	contained "\<tag-\%(pattern\|prefix\)\>"
+syn match muttrcFunction	contained "\<toggle-\%(mailboxes\|new\|quoted\|subscribed\|unlink\|write\)\>"
+syn match muttrcFunction	contained "\<undelete-\%(pattern\|subthread\)\>"
+syn match muttrcFunction	contained "\<collapse-\%(parts\|thread\|all\)\>"
+syn match muttrcFunction	contained "\<view-\%(attach\|attachments\|file\|mailcap\|name\|text\)\>"
+syn match muttrcFunction	contained "\<\%(backspace\|backward-char\|bol\|bottom\|bottom-page\|buffy-cycle\|clear-flag\|complete\%(-query\)\?\|copy-file\|create-alias\|detach-file\|eol\|exit\|extract-keys\|\%(imap-\)\?fetch-mail\|forget-passphrase\|forward-char\|group-reply\|help\|ispell\|jump\|limit\|list-reply\|mail\|mail-key\|mark-as-new\|middle-page\|new-mime\|pgp-menu\|query\|query-append\|quit\|quote-char\|read-subthread\|redraw-screen\|refresh\|rename-file\|reply\|select-new\|set-flag\|shell-escape\|skip-quoted\|sort\|subscribe\|sync-mailbox\|top\|top-page\|transpose-chars\|unsubscribe\|untag-pattern\|verify-key\|write-fcc\)\>"
+syn match muttrcAction		contained "<[^>]\{-}>" contains=muttrcBadAction,muttrcFunction,muttrcKeyName
 
 syn keyword muttrcSet		set     skipwhite nextgroup=muttrcVar.*
 syn keyword muttrcUnset		unset   skipwhite nextgroup=muttrcVar.*
 syn keyword muttrcReset		reset   skipwhite nextgroup=muttrcVar.*
 syn keyword muttrcToggle	toggle  skipwhite nextgroup=muttrcVar.*
 
-syn keyword muttrcBind		contained bind		skipwhite nextgroup=muttrcMenu
-syn match   muttrcBindLine	"^\s*bind\s\+\S\+"	skipwhite nextgroup=muttrcKey\(Name\)\= contains=muttrcBind
+" First, functions that take regular expressions:
+syn match  muttrcRXHookNot	contained /!\s*/ skipwhite nextgroup=muttrcRXString
+syn match  muttrcRXHooks	/^\s*\%(account\|folder\)-hook\s\+/ skipwhite nextgroup=muttrcRXHookNot,muttrcRXString
 
-syn keyword muttrcMacro		contained macro		skipwhite nextgroup=muttrcMenu
-syn match   muttrcMacroLine	"^\s*macro\s\+\S\+"	skipwhite nextgroup=muttrcKey\(Name\)\= contains=muttrcMacro
+" Now, functions that take patterns
+syn match muttrcPatHookNot	contained /!\s*/ skipwhite nextgroup=muttrcPattern
+syn match muttrcPatHooks	/^\s*\%(message\|mbox\|save\|fcc\%(-save\)\?\|send2\?\|reply\|crypt\)-hook\s\+/ nextgroup=muttrcPatHookNot,muttrcPattern
 
-syn keyword muttrcAlias		contained alias
-syn match   muttrcAliasLine	"^\s*alias\s\+\S\+" contains=muttrcAlias
+syn match muttrcBindFunction	contained /\S\+\%(\s\|$\)/ skipwhite contains=muttrcFunction
+syn match muttrcBindFunctionNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcBindFunction,muttrcBindFunctionNL
+syn match muttrcBindKey		contained /\S\+/ skipwhite contains=muttrcKey nextgroup=muttrcBindFunction,muttrcBindFunctionNL
+syn match muttrcBindKeyNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcBindKey,muttrcBindKeyNL
+syn match muttrcBindMenuList	contained /\S\+/ skipwhite contains=muttrcMenu,muttrcMenuCommas nextgroup=muttrcBindKey,muttrcBindKeyNL
+syn match muttrcBindMenuListNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcBindMenuList,muttrcBindMenuListNL
+syn match muttrcBind		/^\s*bind\s\?/ skipwhite nextgroup=muttrcBindMenuList,muttrcBindMenuListNL
+
+syn match muttrcMacroKey	contained /\S\+/ skipwhite contains=muttrcKey
+syn match muttrcMacroKeyNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcMacroKey,muttrcMacroKeyNL
+syn match muttrcMacroMenuList	contained /\S\+/ skipwhite contains=muttrcMenu,muttrcMenuCommas nextgroup=muttrcMacroKey,muttrcMacroKeyNL
+syn match muttrcMacroMenuListNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcMacroMenuList,muttrcMacroMenuListNL
+syn match muttrcMacro		/^\s*macro\s\?/	skipwhite nextgroup=muttrcMacroMenuList,muttrcMacroMenuListNL
+
+syn match muttrcAddrContent	contained "[a-zA-Z0-9._-]\+@[a-zA-Z0-9./-]\+\s*" skipwhite contains=muttrcEmail nextgroup=muttrcAddrContent
+syn region muttrcAddrContent	contained start=+'+ end=+'\s*+ skip=+\\'+ skipwhite contains=muttrcEmail nextgroup=muttrcAddrContent
+syn region muttrcAddrContent	contained start=+"+ end=+"\s*+ skip=+\\"+ skipwhite contains=muttrcEmail nextgroup=muttrcAddrContent
+syn match muttrcAddrDef 	contained "-addr\s\+" skipwhite nextgroup=muttrcAddrContent
+
+syn match muttrcGroupFlag	contained "-group"
+syn region muttrcGroupDef	contained start="-group\s\+" skip="\\$" end="\s" skipwhite keepend contains=muttrcGroupFlag,muttrcUnHighlightSpace
+
+syn keyword muttrcGroupKeyword	contained group ungroup
+syn region muttrcGroupLine	keepend start=+^\s*\%(un\)\?group\s+ skip=+\\$+ end=+$+ contains=muttrcGroupKeyword,muttrcGroupDef,muttrcAddrDef,muttrcRXDef,muttrcUnHighlightSpace,muttrcComment
+
+syn match muttrcAliasGroupName	contained /\w\+/ skipwhite nextgroup=muttrcAliasGroupDef,muttrcAliasAbbr,muttrcAliasNL
+syn match muttrcAliasGroupDefNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcAliasGroupName,muttrcAliasGroupDefNL
+syn match muttrcAliasGroupDef	contained /\s*-group/ skipwhite nextgroup=muttrcAliasGroupName,muttrcAliasGroupDefNL contains=muttrcGroupFlag
+syn match muttrcAliasEmail	contained /\S\+@\S\+/ contains=muttrcEmail nextgroup=muttrcAliasName,muttrcAliasNameNL
+syn match muttrcAliasEncEmail	contained /<[^>]\+>/ contains=muttrcEmail
+syn match muttrcAliasEncEmailNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcAliasEncEmail,muttrcAliasEncEmailNL
+syn match muttrcAliasNameNoParens contained /[^<(@]\+\s\+/ nextgroup=muttrcAliasEncEmail,muttrcAliasEncEmailNL
+syn region muttrcAliasName	contained matchgroup=Type start=/(/ end=/)/ skipwhite
+syn match muttrcAliasNameNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcAliasName,muttrcAliasNameNL
+syn match muttrcAliasENNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcAliasEmail,muttrcAliasNameNoParens,muttrcAliasENNL
+syn match muttrcAliasAbbr	contained /\s*[^- \t]\S\+/ skipwhite nextgroup=muttrcAliasEmail,muttrcAliasNameNoParens,muttrcAliasENNL
+syn match muttrcAliasNL		contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcAliasGroupDef,muttrcAliasAbbr,muttrcAliasNL
+syn match muttrcAlias		/^\s*alias\s/ skipwhite nextgroup=muttrcAliasGroupDef,muttrcAliasAbbr,muttrcAliasNL
+
+syn match muttrcUnAliasAbbr	contained "\s*\w\+\s*" skipwhite nextgroup=muttrcUnAliasAbbr,muttrcUnAliasNL
+syn match muttrcUnAliasNL	contained /\s*\\$/ skipwhite skipnl nextgroup=muttrcUnAliasAbbr,muttrcUnAliasNL
+syn match muttrcUnAlias		/^\s*unalias\s\?/ nextgroup=muttrcUnAliasAbbr,muttrcUnAliasNL
+
+syn match muttrcSimplePat contained "!\?\^\?[~][ADEFgGklNOpPQRSTuUvV=$]"
+syn match muttrcSimplePat contained "!\?\^\?[~][mnXz]\s\+\%([<>-][0-9]\+\|[0-9]\+[-][0-9]*\)"
+syn match muttrcSimplePat contained "!\?\^\?[~][dr]\s\+[0-9]\{2}\%(/[0-9]\{2}\%(/[0-9]\{2}\%([0-9]\{2}\)\)\?\)\?"
+syn match muttrcSimplePat contained "!\?\^\?[~][bBcCefhHiLstxy]\s\+" nextgroup=muttrcSimplePatRXContainer
+syn match muttrcSimplePat contained "!\?\^\?[%][bBcCefhHiLstxy]\s\+" nextgroup=muttrcSimplePatGroup
+"syn match muttrcSimplePat contained /"[^~=%][^"]*/ contains=muttrcRXPat
+"syn match muttrcSimplePat contained /'[^~=%][^']*/ contains=muttrcRXPat
+syn match muttrcSimplePatGroup contained /[a-zA-Z0-9]\+/
+syn region muttrcSimplePatRXContainer contained keepend start=+"+ end=+"+ skip=+\\"+ contains=muttrcRXPat
+syn region muttrcSimplePatRXContainer contained keepend start=+'+ end=+'+ skip=+\\'+ contains=muttrcRXPat
+syn match muttrcSimplePatRXContainer contained /\S\+/ contains=muttrcRXPat
+syn match muttrcSimplePatMetas contained /[(|)]/
+
+syn region muttrcPattern contained keepend start=+"+ skip=+\\"+ end=+"+ contains=muttrcPatternInner
+syn region muttrcPattern contained keepend start=+'+ skip=+\\'+ end=+'+ contains=muttrcPatternInner
+syn match muttrcPattern contained "[~][A-Za-z]" contains=muttrcSimplePat
+syn region muttrcPatternInner contained keepend start=+"[~=%!(^]+ms=s+1 skip=+\\"+ end=+"+me=e-1 contains=muttrcSimplePat,muttrcUnHighlightSpace,muttrcSimplePatMetas
+syn region muttrcPatternInner contained keepend start=+'[~=%!(^]+ms=s+1 skip=+\\'+ end=+'+me=e-1 contains=muttrcSimplePat,muttrcUnHighlightSpace,muttrcSimplePatMetas
 
 " Colour definitions takes object, foreground and background arguments (regexps excluded).
-syn keyword muttrcColorField	contained attachment body bold error hdrdefault header index
-syn keyword muttrcColorField	contained indicator markers message normal quoted search signature
-syn keyword muttrcColorField	contained status tilde tree underline
+syn match muttrcColorMatchCount	contained "[0-9]\+"
+syn match muttrcColorMatchCountNL contained skipwhite skipnl "\s*\\$" nextgroup=muttrcColorMatchCount,muttrcColorMatchCountNL
+syn region muttrcColorRXPat	contained start=+\s\+'+ skip=+\\'+ end=+'\s*+ keepend skipwhite contains=muttrcRXString nextgroup=muttrcColorMatchCount,muttrcColorMatchCountNL
+syn region muttrcColorRXPat	contained start=+\s\+"+ skip=+\\"+ end=+"\s*+ keepend skipwhite contains=muttrcRXString nextgroup=muttrcColorMatchCount,muttrcColorMatchCountNL
+syn keyword muttrcColorField	contained attachment body bold error hdrdefault header index indicator markers message normal quoted search signature status tilde tree underline
 syn match   muttrcColorField	contained "\<quoted\d\=\>"
-syn keyword muttrcColorFG	contained black blue cyan default green magenta red white yellow
-syn keyword muttrcColorFG	contained brightblack brightblue brightcyan brightdefault brightgreen
-syn keyword muttrcColorFG	contained brightmagenta brightred brightwhite brightyellow
-syn match   muttrcColorFG	contained "\<\(bright\)\=color\d\{1,2}\>"
-syn keyword muttrcColorBG	contained black blue cyan default green magenta red white yellow
-syn match   muttrcColorBG	contained "\<color\d\{1,2}\>"
-" Now for the match
-syn keyword muttrcColor		contained color			skipwhite nextgroup=muttrcColorField
-syn match   muttrcColorInit	contained "^\s*color\s\+\S\+"	skipwhite nextgroup=muttrcColorFG contains=muttrcColor
-syn match   muttrcColorLine	"^\s*color\s\+\S\+\s\+\S"	skipwhite nextgroup=muttrcColorBG contains=muttrcColorInit
+syn keyword muttrcColor	contained black blue cyan default green magenta red white yellow
+syn keyword muttrcColor	contained brightblack brightblue brightcyan brightdefault brightgreen brightmagenta brightred brightwhite brightyellow
+syn match   muttrcColor	contained "\<\%(bright\)\=color\d\{1,2}\>"
+" Now for the structure of the color line
+syn match muttrcColorRXNL	contained skipwhite skipnl "\s*\\$" nextgroup=muttrcColorRXPat,muttrcColorRXNL
+syn match muttrcColorBG 	contained skipwhite /\s*[$]\?\w\+/ contains=muttrcColor,muttrcVariable,muttrcUnHighlightSpace nextgroup=muttrcColorRXPat,muttrcColorRXNL
+syn match muttrcColorBGNL	contained skipwhite skipnl "\s*\\$" nextgroup=muttrcColorBG,muttrcColorBGNL
+syn match muttrcColorFG 	contained skipwhite /\s*[$]\?\w\+/ contains=muttrcColor,muttrcVariable,muttrcUnHighlightSpace nextgroup=muttrcColorBG,muttrcColorBGNL
+syn match muttrcColorFGNL	contained skipwhite skipnl "\s*\\$" nextgroup=muttrcColorFG,muttrcColorFGNL
+syn match muttrcColorContext 	contained skipwhite /\s*[$]\?\w\+/ contains=muttrcColorField,muttrcVariable,muttrcUnHighlightSpace nextgroup=muttrcColorFG,muttrcColorFGNL
+syn match muttrcColorNL 	contained skipwhite skipnl "\s*\\$" nextgroup=muttrcColorContext,muttrcColorNL
+syn match muttrcColorKeyword	contained skipwhite /^\s*color\s\+/ nextgroup=muttrcColorContext,muttrcColorNL
+syn region muttrcColorLine keepend start=/^\s*color\s\+\%(index\)\@!/ skip=+\\$+ end=+$+ contains=muttrcColorKeyword,muttrcComment,muttrcUnHighlightSpace
+" Now for the structure of the color index line
+syn match muttrcPatternNL	contained skipwhite skipnl "\s*\\$" nextgroup=muttrcPattern,muttrcPatternNL
+syn match muttrcColorBGI	contained skipwhite /\s*[$]\?\w\+\s*/ contains=muttrcColor,muttrcVariable,muttrcUnHighlightSpace nextgroup=muttrcPattern,muttrcPatternNL
+syn match muttrcColorBGNLI	contained skipwhite skipnl "\s*\\$" nextgroup=muttrcColorBGI,muttrcColorBGNLI
+syn match muttrcColorFGI	contained skipwhite /\s*[$]\?\w\+/ contains=muttrcColor,muttrcVariable,muttrcUnHighlightSpace nextgroup=muttrcColorBGI,muttrcColorBGNLI
+syn match muttrcColorFGNLI	contained skipwhite skipnl "\s*\\$" nextgroup=muttrcColorFGI,muttrcColorFGNLI
+syn match muttrcColorContextI	contained skipwhite /\s*index/ contains=muttrcUnHighlightSpace nextgroup=muttrcColorFGI,muttrcColorFGNLI
+syn match muttrcColorNLI	contained skipwhite skipnl "\s*\\$" nextgroup=muttrcColorContextI,muttrcColorNLI
+syn match muttrcColorKeywordI	contained skipwhite /^\s*color\s\+/ nextgroup=muttrcColorContextI,muttrcColorNLI
+syn region muttrcColorLine keepend start=/^\s*color\s\+index/ skip=+\\$+ end=+$+ contains=muttrcColorKeywordI,muttrcComment,muttrcUnHighlightSpace
+" And now color's brother:
+syn region muttrcUnColorPatterns contained skipwhite start=+\s*'+ end=+'+ skip=+\\'+ contains=muttrcPattern nextgroup=muttrcUnColorPatterns,muttrcUnColorPatNL
+syn region muttrcUnColorPatterns contained skipwhite start=+\s*"+ end=+"+ skip=+\\"+ contains=muttrcPattern nextgroup=muttrcUnColorPatterns,muttrcUnColorPatNL
+syn match muttrcUnColorPatterns contained skipwhite /\s*[^'"\s]\S\*/ contains=muttrcPattern nextgroup=muttrcUnColorPatterns,muttrcUnColorPatNL
+syn match muttrcUnColorPatNL	contained skipwhite skipnl /\s*\\$/ nextgroup=muttrcUnColorPatterns,muttrcUnColorPatNL
+syn match muttrcUnColorAll	contained skipwhite /[*]/
+syn match muttrcUnColorAPNL	contained skipwhite skipnl /\s*\\$/ nextgroup=muttrcUnColorPatterns,muttrcUnColorAll,muttrcUnColorAPNL
+syn match muttrcUnColorIndex	contained skipwhite /\s*index\s\+/ nextgroup=muttrcUnColorPatterns,muttrcUnColorAll,muttrcUnColorAPNL
+syn match muttrcUnColorIndexNL	contained skipwhite skipnl /\s*\\$/ nextgroup=muttrcUnColorIndex,muttrcUnColorIndexNL
+syn match muttrcUnColorKeyword	contained skipwhite /^\s*uncolor\s\+/ nextgroup=muttrcUnColorIndex,muttrcUnColorIndexNL
+syn region muttrcUnColorLine keepend start=+^\s*uncolor\s+ skip=+\\$+ end=+$+ contains=muttrcUnColorKeyword,muttrcComment,muttrcUnHighlightSpace
 
 " Mono are almost like color (ojects inherited from color)
 syn keyword muttrcMonoAttrib	contained bold none normal reverse standout underline
@@ -223,35 +429,84 @@
 
   HiLink muttrcComment		Comment
   HiLink muttrcEscape		SpecialChar
+  HiLink muttrcRXChars		SpecialChar
   HiLink muttrcString		String
+  HiLink muttrcRXString		String
   HiLink muttrcSpecial		Special
+  HiLink muttrcGroupFlag	Type
+  HiLink muttrcGroupDef		Macro
+  HiLink muttrcAddrDef		muttrcGroupFlag
+  HiLink muttrcRXDef		muttrcGroupFlag
+  HiLink muttrcRXPat		String
+  HiLink muttrcAliasGroupName	Macro
+  HiLink muttrcAliasAbbr	Identifier
+  HiLink muttrcUnAliasAbbr	Identifier
+  HiLink muttrcAliasEncEmail	Identifier
+  HiLink muttrcAliasParens	Type
   HiLink muttrcNumber		Number
   HiLink muttrcQuadopt		Boolean
   HiLink muttrcEmail		Special
+  HiLink muttrcVariable		Special
   HiLink muttrcHeader		Type
   HiLink muttrcKeySpecial	SpecialChar
   HiLink muttrcKey		Type
-  HiLink muttrcKeyName		Macro
+  HiLink muttrcKeyName		SpecialChar
   HiLink muttrcVarBool		Identifier
   HiLink muttrcVarQuad		Identifier
   HiLink muttrcVarNum		Identifier
   HiLink muttrcVarStr		Identifier
   HiLink muttrcMenu		Identifier
   HiLink muttrcCommand		Keyword
-  HiLink muttrcSet		muttrcCommand
+  HiLink muttrcSet		Keyword
   HiLink muttrcUnset		muttrcCommand
   HiLink muttrcReset		muttrcCommand
   HiLink muttrcToggle		muttrcCommand
   HiLink muttrcBind		muttrcCommand
   HiLink muttrcMacro		muttrcCommand
   HiLink muttrcAlias		muttrcCommand
-  HiLink muttrcAliasLine	Identifier
+  HiLink muttrcUnAlias		muttrcCommand
+  HiLink muttrcAction		Macro
+  HiLink muttrcBadAction	Error
+  HiLink muttrcBindFunction	Error
+  HiLink muttrcBindMenuList	Error
+  HiLink muttrcFunction		Macro
+  HiLink muttrcGroupKeyword	muttrcCommand
+  HiLink muttrcGroupLine	Error
+  HiLink muttrcSubscribeKeyword	muttrcCommand
+  HiLink muttrcSubscribeLine	Error
+  HiLink muttrcListsKeyword	muttrcCommand
+  HiLink muttrcListsLine	Error
+  HiLink muttrcAlternateKeyword	muttrcCommand
+  HiLink muttrcAlternatesLine	Error
+  HiLink muttrcAttachmentsLine	muttrcCommand
+  HiLink muttrcAttachmentsFlag	Type
+  HiLink muttrcAttachmentsMimeType	String
+  HiLink muttrcColorLine	Error
+  HiLink muttrcColorContext	Error
+  HiLink muttrcColorContextI	Identifier
+  HiLink muttrcColorKeyword	muttrcCommand
+  HiLink muttrcColorKeywordI	muttrcColorKeyword
   HiLink muttrcColorField	Identifier
-  HiLink muttrcColorFG		String
-  HiLink muttrcColorBG		muttrcColorFG
-  HiLink muttrcColor		muttrcCommand
-  HiLink muttrcMonoAttrib	muttrcColorFG
+  HiLink muttrcColor		String
+  HiLink muttrcColorFG		Error
+  HiLink muttrcColorFGI		Error
+  HiLink muttrcColorBG		Error
+  HiLink muttrcColorBGI		Error
+  HiLink muttrcMonoAttrib	muttrcColor
   HiLink muttrcMono		muttrcCommand
+  HiLink muttrcSimplePat	Identifier
+  HiLink muttrcSimplePatGroup	Macro
+  HiLink muttrcSimplePatMetas	Special
+  HiLink muttrcPattern		Type
+  HiLink muttrcPatternInner	Error
+  HiLink muttrcUnColorLine	Error
+  HiLink muttrcUnColorKeyword	muttrcCommand
+  HiLink muttrcUnColorIndex	Identifier
+  HiLink muttrcShellString	muttrcEscape
+  HiLink muttrcRXHooks		muttrcCommand
+  HiLink muttrcRXHookNot	Type
+  HiLink muttrcPatHooks		muttrcCommand
+  HiLink muttrcPatHookNot	Type
 
   delcommand HiLink
 endif