bug#21477: 24.4; Imenu - improper parse of shell function names

["Matthew Persico (BLOOMBERG/ 731 LEX)" <mpersico5@bloomberg.net>]

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1) Create a file with this text:
# -*- sh -*-
this_is_parsed ()
{
echo 1
}

function this_is_also_parsed
{
echo 1
}

this-is-not-parsed ()
{
echo 1
}

function this-is-also-not-parsed
{
echo 1
}

2) Load it into emacs that has imenu.

3) Look for functions in the imenu list. Only the ones with '_' show up. The ones with '-' do not.

In GNU Emacs 24.4.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.8.9)
of 2015-09-01 on nylnxbldo2
Windowing system distributor `Hummingbird - Open Text', version 11.0.13830
System Description:     Red Hat Enterprise Linux Server release 5.8 (Tikanga)

Configured using:
`configure --prefix=/opt/bb --libdir=/opt/bb/lib64
-x-includes=/opt/bb/include -x-libraries=/opt/bb/lib64
--without-selinux --with-png=no --with-gif=no --without-gsettings
CFLAGS=-m64 CPPFLAGS=-I/opt/bb/include 'LDFLAGS=-m64 -L/opt/bb/lib64
-Wl,--enable-new-dtags,-R/opt/bb/lib64''

Important settings:
value of $LANG: C
locale-coding-system: nil

Major mode: Shell-script

Minor modes in effect:
sh-electric-here-document-mode: t
flyspell-mode: t
exordium-require-final-newline-mode: t
exordium-show-trailing-whitespace-mode: t
global-git-gutter-mode: t
diff-auto-refine-mode: t
global-git-commit-mode: t
shell-dirtrack-mode: t
projectile-global-mode: t
projectile-mode: t
global-auto-complete-mode: t
auto-complete-mode: t
recentf-mode: t
delete-selection-mode: t
show-paren-mode: t
global-linum-mode: t
linum-mode: t
tooltip-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t

Recent input:
_ <return> <C-home> <C-home> C-s g i t - g o - f <backspace> 
_ <backspace> <backspace> _ f <backspace> C-s C-s C-g 
C-g C-g C-g C-g C-s M O P C-s C-s <C-home> <C-home> 
<C-home> <escape> C-t g o t C-_ C-_ <escape> C-r g 
i t - g o f i l e <return> <up> <left> <right> <right> 
<right> <right> <right> <backspace> _ <down> <up> <right> 
<right> _ <return> SPC SPC SPC SPC SPC SPC SPC SPC 
<C-home> <C-home> <escape> C-r g i t - g o _ f i l 
e <return> <up> <left> <down> <right> <down> <down> 
<down> <right> <right> <right> <right> <backspace> 
+ _ <backspace> <backspace> _ <return> ! <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<down> <down> <down> <down> <down> <up> <down> C-x 
C-z C-x C-s <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <down-mouse-1> <mouse-1> <down-mouse-5> 
<mouse-5> <double-down-mouse-5> <double-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-5> <mouse-5> <double-down-mouse-5> <double-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <down-mouse-1> 
<mouse-1> <down-mouse-3> <mouse-3> <down-mouse-3> <mouse-3> 
<down-mouse-1> <mouse-1> <help-echo> <escape> x e m 
a c s - r e p o t <backspace> r t - b u g <return> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> r e 
p <tab> o <tab> r <tab> <return>

Recent messages:
call-interactively: End of buffer
user-error: End of defaults; no next item [2 times]
Mark set
Replaced 8 occurrences
Auto-saving...done
Saving file /home/mpersico5/personal/bin/gitfuncs...
Wrote /home/mpersico5/personal/bin/gitfuncs
Quit [2 times]
delete-backward-char: Text is read-only [3 times]
Making completion list... [2 times]

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug sendmail misearch multi-isearch
sh-script smie executable flymake disp-table flyspell ispell
tomorrow-night-bright-theme init-powerline powerline
powerline-separators color powerline-themes init-elisp page-break-lines
init-ruby init-python init-javascript js2-imenu-extras
js2-mode-expansions js2-mode js2-old-indent js-mode-expansions js json
imenu init-rtags-helm init-rtags auto-complete-c-headers rtags-ac rtags
repeat init-yasnippet yasnippet init-bde-style init-cpp cpp init-xml
init-org ob-dot ob-C cc-mode-expansions cc-mode cc-fonts cc-guess
cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs ob-python
ob-sh ob-ruby ob-perl ox-gfm ox-odt rng-loc rng-uri rng-parse rng-match
rng-dt rng-util rng-pttrn nxml-parse nxml-ns nxml-enc xmltok nxml-util
ox-beamer ox-md ox-latex ox-icalendar ox-html ox-ascii ox-publish ox
org-element org-bullets init-markdown markdown-mode init-shell
init-prog-mode init-git diminish git-gutter-fringe fringe-helper
git-gutter magit-blame magit-stash magit-bisect magit-remote
magit-commit magit-sequence magit magit-log magit-apply magit-wip
magit-diff smerge-mode diff-mode magit-core magit-process magit-popup
magit-mode help-mode magit-git crm magit-section magit-utils git-commit
log-edit message rfc822 mml mml-sec mm-decode mm-bodies mm-encode
mail-parse rfc2231 rfc2047 rfc2045 ietf-drums mailabbrev mail-utils
gmm-utils mailheader pcvs-util add-log with-editor tramp-sh server
init-dired find-dired wdired init-flb-mode init-helm-projectile
project-explorer helm-mode filenotify es-windows face-remap es-lib
es-lib-total-line es-lib-lexical es-lib-buffer-local-set-key
es-lib-text-navigate es-lib-core-functions es-lib-core-macros helm-swoop
helm-projectile helm-files rx image-dired tramp tramp-compat
tramp-loaddefs trampver shell dired-x dired-aux ffap helm-tags
helm-bookmark helm-adaptive helm-info bookmark pp helm-external helm-net
browse-url xml url url-proxy url-privacy url-expand url-methods
url-history url-cookie url-domsuf url-util url-parse auth-source
gnus-util mm-util mail-prsvr password-cache url-vars mailcap
helm-buffers helm-match-plugin helm-grep helm-regexp helm-plugin
helm-elscreen helm-utils helm-locate helm-help helm-types projectile
compile ibuf-ext ibuffer dash helm helm-source eieio eieio-core helm-lib
dired init-autocomplete auto-complete-config auto-complete edmacro
kmacro cl-macs init-ido recentf tree-widget wid-edit ido init-util
warnings popup goto-chg init-window-manager windmove init-linum nlinum
init-font-lock init-look-and-feel vlf-setup expand-region
text-mode-expansions the-org-mode-expansions er-basic-expansions
thingatpt expand-region-core expand-region-custom delsel paren cl gv
init-themes fill-column-indicator byte-opt hilinum-mode cl-loaddefs
cl-lib linum tomorrow-night-theme color-theme-tomorrow org org-macro
org-footnote org-pcomplete pcomplete org-list org-faces org-entities
noutline outline easy-mmode org-version ob-emacs-lisp ob ob-tangle
ob-ref ob-lob ob-table ob-exp org-src ob-keys ob-comint comint
ansi-color ring ob-core ob-eval org-compat org-macs org-loaddefs
format-spec find-func cal-menu calendar cal-loaddefs init-progress-bar
init-prefs init-environment init-lib bytecomp byte-compile cconv advice
help-fns info easymenu package epg-config time-date tooltip electric
uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar
dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode
prog-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
dbusbind gfilenotify dynamic-setting font-render-setting move-toolbar
gtk x-toolkit x multi-tty emacs)

Memory information:
((conses 16 476713 44382)
(symbols 48 55322 0)
(miscs 40 303 389)
(strings 32 138900 24315)
(string-bytes 1 4089758)
(vectors 16 53992)
(vector-slots 8 870426 22979)
(floats 8 475 265)
(intervals 56 1430 880)
(buffers 960 14)
(heap 1024 207714 1127))


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