patch 8.1.0673: functionality for signs is spread out over several filesv8.1.0673

Problem:    Functionality for signs is spread out over several files.
Solution:   Move most of the sign functionality into sign.c. (Yegappan
            Lakshmanan, closes #3751)

21 files changed, 1957 insertions, 1935 deletions

diff --git a/Filelist b/Filelist
index de0c9b073e..b2b80095e9 100644
--- a/Filelist
+++ b/Filelist
@@ -81,10 +81,11 @@ SRC_ALL =	\
 		src/screen.c \
 		src/search.c \
 		src/sha256.c \
-		src/structs.h \
+		src/sign.c \
 		src/spell.c \
 		src/spell.h \
 		src/spellfile.c \
+		src/structs.h \
 		src/syntax.c \
 		src/tag.c \
 		src/term.c \
@@ -192,6 +193,7 @@ SRC_ALL =	\
 		src/proto/screen.pro \
 		src/proto/search.pro \
 		src/proto/sha256.pro \
+		src/proto/sign.pro \
 		src/proto/spell.pro \
 		src/proto/spellfile.pro \
 		src/proto/syntax.pro \
diff --git a/src/Make_bc5.mak b/src/Make_bc5.mak
index 6725c6d760..a5ee13bd29 100644
--- a/src/Make_bc5.mak
+++ b/src/Make_bc5.mak
@@ -581,6 +581,7 @@ vimobj =  \
 	$(OBJDIR)\screen.obj \
 	$(OBJDIR)\search.obj \
 	$(OBJDIR)\sha256.obj \
+	$(OBJDIR)\sign.obj \
 	$(OBJDIR)\spell.obj \
 	$(OBJDIR)\spellfile.obj \
 	$(OBJDIR)\syntax.obj \
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index 52156dddd4..11ce0fc12f 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -746,6 +746,7 @@ OBJ = \
 	$(OUTDIR)/screen.o \
 	$(OUTDIR)/search.o \
 	$(OUTDIR)/sha256.o \
+	$(OUTDIR)/sign.o \
 	$(OUTDIR)/spell.o \
 	$(OUTDIR)/spellfile.o \
 	$(OUTDIR)/syntax.o \
diff --git a/src/Make_dice.mak b/src/Make_dice.mak
index c53f182f5f..2daa8d72bf 100644
--- a/src/Make_dice.mak
+++ b/src/Make_dice.mak
@@ -71,6 +71,7 @@ SRC = \
 	screen.c \
 	search.c \
 	sha256.c \
+	sign.c \
 	spell.c \
 	spellfile.c \
 	syntax.c \
@@ -127,6 +128,7 @@ OBJ =	o/arabic.o \
 	o/screen.o \
 	o/search.o \
 	o/sha256.o \
+	o/sign.o \
 	o/spell.o \
 	o/spellfile.o \
 	o/syntax.o \
@@ -252,6 +254,8 @@ o/search.o:	search.c  $(SYMS) regexp.h
 
 o/sha256.o:	sha256.c  $(SYMS)
 
+o/sign.o:	sign.c  $(SYMS)
+
 o/spell.o:	spell.c  $(SYMS) spell.h
 
 o/spellfile.o:	spellfile.c  $(SYMS) spell.h
diff --git a/src/Make_ivc.mak b/src/Make_ivc.mak
index c8c1c2f97a..784cab9312 100644
--- a/src/Make_ivc.mak
+++ b/src/Make_ivc.mak
@@ -257,6 +257,7 @@ LINK32_OBJS= \
 	"$(INTDIR)/screen.obj" \
 	"$(INTDIR)/search.obj" \
 	"$(INTDIR)/sha256.obj" \
+	"$(INTDIR)/sign.obj" \
 	"$(INTDIR)/spell.obj" \
 	"$(INTDIR)/spellfile.obj" \
 	"$(INTDIR)/syntax.obj" \
@@ -675,6 +676,10 @@ SOURCE=.\sha256.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\sign.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\spell.c
 # End Source File
 # Begin Source File
diff --git a/src/Make_manx.mak b/src/Make_manx.mak
index 6995b7662e..04560d4034 100644
--- a/src/Make_manx.mak
+++ b/src/Make_manx.mak
@@ -81,6 +81,7 @@ SRC =	arabic.c \
 	screen.c \
 	search.c \
 	sha256.c \
+	sign.c \
 	spell.c \
 	spellfile.c \
 	syntax.c \
@@ -139,6 +140,7 @@ OBJ =	obj/arabic.o \
 	obj/screen.o \
 	obj/search.o \
 	obj/sha256.o \
+	obj/sign.o \
 	obj/spell.o \
 	obj/spellfile.o \
 	obj/syntax.o \
@@ -195,6 +197,7 @@ PRO =	proto/arabic.pro \
 	proto/screen.pro \
 	proto/search.pro \
 	proto/sha256.pro \
+	proto/sign.pro \
 	proto/spell.pro \
 	proto/spellfile.pro \
 	proto/syntax.pro \
@@ -389,6 +392,9 @@ obj/search.o:	search.c
 obj/sha256.o:	sha256.c
 	$(CCSYM) $@ sha256.c
 
+obj/sign.o:	sign.c
+	$(CCSYM) $@ sign.c
+
 obj/spell.o:	spell.c
 	$(CCSYM) $@ spell.c
 
diff --git a/src/Make_morph.mak b/src/Make_morph.mak
index 57c6553cc3..70ab5377a3 100644
--- a/src/Make_morph.mak
+++ b/src/Make_morph.mak
@@ -69,6 +69,7 @@ SRC =	arabic.c						\
 	screen.c						\
 	search.c						\
 	sha256.c						\
+	sign.c							\
 	spell.c							\
 	spellfile.c						\
 	syntax.c						\
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index 5e22470aff..00c4f24bb6 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -749,6 +749,7 @@ OBJ = \
 	$(OUTDIR)\screen.obj \
 	$(OUTDIR)\search.obj \
 	$(OUTDIR)\sha256.obj \
+	$(OUTDIR)\sign.obj \
 	$(OUTDIR)\spell.obj \
 	$(OUTDIR)\spellfile.obj \
 	$(OUTDIR)\syntax.obj \
@@ -1519,6 +1520,8 @@ $(OUTDIR)/search.obj:	$(OUTDIR) search.c  $(INCL)
 
 $(OUTDIR)/sha256.obj:	$(OUTDIR) sha256.c  $(INCL)
 
+$(OUTDIR)/sign.obj:	$(OUTDIR) sign.c  $(INCL)
+
 $(OUTDIR)/spell.obj:	$(OUTDIR) spell.c  $(INCL)
 
 $(OUTDIR)/spellfile.obj:	$(OUTDIR) spellfile.c  $(INCL)
@@ -1664,6 +1667,7 @@ proto.h: \
 	proto/screen.pro \
 	proto/search.pro \
 	proto/sha256.pro \
+	proto/sign.pro \
 	proto/spell.pro \
 	proto/spellfile.pro \
 	proto/syntax.pro \
diff --git a/src/Make_sas.mak b/src/Make_sas.mak
index d07fb5556e..a16908e9c1 100644
--- a/src/Make_sas.mak
+++ b/src/Make_sas.mak
@@ -134,6 +134,7 @@ SRC = \
 	screen.c \
 	search.c \
 	sha256.c \
+	sign.c \
 	spell.c \
 	spellfile.c \
 	syntax.c \
@@ -191,6 +192,7 @@ OBJ = \
 	screen.o \
 	search.o \
 	sha256.o \
+	sign.o \
 	spell.o \
 	spellfile.o \
 	syntax.o \
@@ -248,6 +250,7 @@ PRO = \
 	proto/screen.pro \
 	proto/search.pro \
 	proto/sha256.pro \
+	proto/sign.pro \
 	proto/spell.pro \
 	proto/spellfile.pro \
 	proto/syntax.pro \
@@ -404,6 +407,8 @@ search.o:		search.c
 proto/search.pro:	search.c
 sha256.o:		sha256.c
 proto/sha256.pro:	sha256.c
+sign.o:			sign.c
+proto/sign.pro:		sign.c
 spell.o:		spell.c
 proto/spell.pro:	spell.c
 spellfile.o:		spellfile.c
diff --git a/src/Make_vms.mms b/src/Make_vms.mms
index a868da8da6..80872ad48b 100644
--- a/src/Make_vms.mms
+++ b/src/Make_vms.mms
@@ -302,7 +302,7 @@ ALL_LIBS = $(LIBS) $(GUI_LIB_DIR) $(GUI_LIB) \
 SRC =	arabic.c beval.obj blowfish.c buffer.c charset.c crypt.c crypt_zip.c dict.c diff.c digraph.c edit.c eval.c evalfunc.c \
 	ex_cmds.c ex_cmds2.c ex_docmd.c ex_eval.c ex_getln.c if_cscope.c if_xcmdsrv.c farsi.c fileio.c fold.c getchar.c \
 	hardcopy.c hashtab.c json.c list.c main.c mark.c menu.c mbyte.c memfile.c memline.c message.c misc1.c \
-	misc2.c move.c normal.c ops.c option.c popupmnu.c quickfix.c regexp.c search.c sha256.c\
+	misc2.c move.c normal.c ops.c option.c popupmnu.c quickfix.c regexp.c search.c sha256.c sign.c \
 	spell.c spellfile.c syntax.c tag.c term.c termlib.c ui.c undo.c userfunc.c version.c screen.c \
 	window.c os_unix.c os_vms.c pathdef.c \
 	$(GUI_SRC) $(PERL_SRC) $(PYTHON_SRC) $(TCL_SRC) \
@@ -313,7 +313,7 @@ OBJ = 	arabic.obj beval.obj blowfish.obj buffer.obj charset.obj crypt.obj crypt_
 	if_xcmdsrv.obj farsi.obj fileio.obj fold.obj getchar.obj hardcopy.obj hashtab.obj json.obj list.obj main.obj mark.obj \
 	menu.obj memfile.obj memline.obj message.obj misc1.obj misc2.obj \
 	move.obj mbyte.obj normal.obj ops.obj option.obj popupmnu.obj quickfix.obj \
-	regexp.obj search.obj sha256.obj spell.obj spellfile.obj syntax.obj tag.obj term.obj termlib.obj \
+	regexp.obj search.obj sha256.obj sign.obj spell.obj spellfile.obj syntax.obj tag.obj term.obj termlib.obj \
 	ui.obj undo.obj userfunc.obj screen.obj version.obj window.obj os_unix.obj \
 	os_vms.obj pathdef.obj if_mzsch.obj\
 	$(GUI_OBJ) $(PERL_OBJ) $(PYTHON_OBJ) $(TCL_OBJ) \
@@ -677,6 +677,10 @@ sha256.obj : sha256.c vim.h [.auto]config.h feature.h os_unix.h \
  ascii.h keymap.h term.h macros.h option.h structs.h regexp.h gui.h \
  beval.h [.proto]gui_beval.pro alloc.h ex_cmds.h spell.h proto.h \
  globals.h farsi.h arabic.h
+sign.obj : sign.c vim.h [.auto]config.h feature.h os_unix.h \
+ ascii.h keymap.h term.h macros.h option.h structs.h regexp.h gui.h \
+ beval.h [.proto]gui_beval.pro alloc.h ex_cmds.h spell.h proto.h \
+ globals.h farsi.h arabic.h
 spell.obj : spell.c vim.h [.auto]config.h feature.h os_unix.h \
  ascii.h keymap.h term.h macros.h structs.h regexp.h \
  gui.h beval.h [.proto]gui_beval.pro option.h ex_cmds.h proto.h \
diff --git a/src/Makefile b/src/Makefile
index 38bb1090da..7e2a843de5 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1626,6 +1626,7 @@ BASIC_SRC = \
 	screen.c \
 	search.c \
 	sha256.c \
+	sign.c \
 	spell.c \
 	spellfile.c \
 	syntax.c \
@@ -1736,6 +1737,7 @@ OBJ_COMMON = \
 	objects/screen.o \
 	objects/search.o \
 	objects/sha256.o \
+	objects/sign.o \
 	objects/spell.o \
 	objects/spellfile.o \
 	objects/syntax.o \
@@ -1870,6 +1872,7 @@ PRO_AUTO = \
 	screen.pro \
 	search.pro \
 	sha256.pro \
+	sign.pro \
 	spell.pro \
 	spellfile.pro \
 	syntax.pro \
@@ -3200,6 +3203,9 @@ objects/search.o: search.c
 objects/sha256.o: sha256.c
 	$(CCC) -o $@ sha256.c
 
+objects/sign.o: sign.c
+	$(CCC) -o $@ sign.c
+
 objects/spell.o: spell.c
 	$(CCC) -o $@ spell.c
 
@@ -3586,6 +3592,10 @@ objects/sha256.o: sha256.c vim.h protodef.h auto/config.h feature.h os_unix.h \
  auto/osdef.h ascii.h keymap.h term.h macros.h option.h beval.h \
  proto/gui_beval.pro structs.h regexp.h gui.h alloc.h ex_cmds.h spell.h \
  proto.h globals.h farsi.h arabic.h
+objects/sign.o: sign.c vim.h protodef.h auto/config.h feature.h os_unix.h \
+ auto/osdef.h ascii.h keymap.h term.h macros.h option.h beval.h \
+ proto/gui_beval.pro structs.h regexp.h gui.h alloc.h ex_cmds.h spell.h \
+ proto.h globals.h farsi.h arabic.h
 objects/spell.o: spell.c vim.h protodef.h auto/config.h feature.h os_unix.h \
  auto/osdef.h ascii.h keymap.h term.h macros.h option.h beval.h \
  proto/gui_beval.pro structs.h regexp.h gui.h alloc.h ex_cmds.h spell.h \
diff --git a/src/README.txt b/src/README.txt
index e134306015..6e7094cec0 100644
--- a/src/README.txt
+++ b/src/README.txt
@@ -35,6 +35,7 @@ Most code can be found in a file with an obvious name (incomplete list):
 	regexp.c	pattern matching
 	screen.c	updating the windows
 	search.c	pattern searching
+	sign.c		signs
 	spell.c		spell checking
 	syntax.c	syntax and other highlighting
 	tag.c		tags
diff --git a/src/buffer.c b/src/buffer.c
index 07b89e3207..b3bd2aa56b 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5864,642 +5864,6 @@ win_found:
 }
 #endif
 
-#if defined(FEAT_SIGNS) || defined(PROTO)
-static hashtab_T	sg_table;	// sign group (signgroup_T) hashtable
-static int		next_sign_id = 1; // next sign id in the global group
-
-/*
- * Initialize data needed for managing signs
- */
-    void
-init_signs(void)
-{
-    hash_init(&sg_table);		// sign group hash table
-}
-
-/*
- * A new sign in group 'groupname' is added. If the group is not present,
- * create it. Otherwise reference the group.
- */
-    static signgroup_T *
-sign_group_ref(char_u *groupname)
-{
-    hash_T		hash;
-    hashitem_T		*hi;
-    signgroup_T		*group;
-
-    hash = hash_hash(groupname);
-    hi = hash_lookup(&sg_table, groupname, hash);
-    if (HASHITEM_EMPTY(hi))
-    {
-	// new group
-	group = (signgroup_T *)alloc(
-		(unsigned)(sizeof(signgroup_T) + STRLEN(groupname)));
-	if (group == NULL)
-	    return NULL;
-	STRCPY(group->sg_name, groupname);
-	group->refcount = 1;
-	group->next_sign_id = 1;
-	hash_add_item(&sg_table, hi, group->sg_name, hash);
-    }
-    else
-    {
-	// existing group
-	group = HI2SG(hi);
-	group->refcount++;
-    }
-
-    return group;
-}
-
-/*
- * A sign in group 'groupname' is removed. If all the signs in this group are
- * removed, then remove the group.
- */
-    static void
-sign_group_unref(char_u *groupname)
-{
-    hashitem_T		*hi;
-    signgroup_T		*group;
-
-    hi = hash_find(&sg_table, groupname);
-    if (!HASHITEM_EMPTY(hi))
-    {
-	group = HI2SG(hi);
-	group->refcount--;
-	if (group->refcount == 0)
-	{
-	    // All the signs in this group are removed
-	    hash_remove(&sg_table, hi);
-	    vim_free(group);
-	}
-    }
-}
-
-/*
- * Get the next free sign identifier in the specified group
- */
-    int
-sign_group_get_next_signid(buf_T *buf, char_u *groupname)
-{
-    int			id = 1;
-    signgroup_T		*group = NULL;
-    signlist_T		*sign;
-    hashitem_T		*hi;
-    int			found = FALSE;
-
-    if (groupname != NULL)
-    {
-	hi = hash_find(&sg_table, groupname);
-	if (HASHITEM_EMPTY(hi))
-	    return id;
-	group = HI2SG(hi);
-    }
-
-    // Search for the next usuable sign identifier
-    while (!found)
-    {
-	if (group == NULL)
-	    id = next_sign_id++;		// global group
-	else
-	    id = group->next_sign_id++;
-
-	// Check whether this sign is already placed in the buffer
-	found = TRUE;
-	FOR_ALL_SIGNS_IN_BUF(buf, sign)
-	{
-	    if (id == sign->id && sign_in_group(sign, groupname))
-	    {
-		found = FALSE;		// sign identifier is in use
-		break;
-	    }
-	}
-    }
-
-    return id;
-}
-
-/*
- * Insert a new sign into the signlist for buffer 'buf' between the 'prev' and
- * 'next' signs.
- */
-    static void
-insert_sign(
-    buf_T	*buf,		// buffer to store sign in
-    signlist_T	*prev,		// previous sign entry
-    signlist_T	*next,		// next sign entry
-    int		id,		// sign ID
-    char_u	*group,		// sign group; NULL for global group
-    int		prio,		// sign priority
-    linenr_T	lnum,		// line number which gets the mark
-    int		typenr)		// typenr of sign we are adding
-{
-    signlist_T	*newsign;
-
-    newsign = (signlist_T *)lalloc_id((long_u)sizeof(signlist_T), FALSE,
-							aid_insert_sign);
-    if (newsign != NULL)
-    {
-	newsign->id = id;
-	newsign->lnum = lnum;
-	newsign->typenr = typenr;
-	if (group != NULL)
-	{
-	    newsign->group = sign_group_ref(group);
-	    if (newsign->group == NULL)
-	    {
-		vim_free(newsign);
-		return;
-	    }
-	}
-	else
-	    newsign->group = NULL;
-	newsign->priority = prio;
-	newsign->next = next;
-	newsign->prev = prev;
-	if (next != NULL)
-	    next->prev = newsign;
-
-	if (prev == NULL)
-	{
-	    // When adding first sign need to redraw the windows to create the
-	    // column for signs.
-	    if (buf->b_signlist == NULL)
-	    {
-		redraw_buf_later(buf, NOT_VALID);
-		changed_cline_bef_curs();
-	    }
-
-	    // first sign in signlist
-	    buf->b_signlist = newsign;
-#ifdef FEAT_NETBEANS_INTG
-	    if (netbeans_active())
-		buf->b_has_sign_column = TRUE;
-#endif
-	}
-	else
-	    prev->next = newsign;
-    }
-}
-
-/*
- * Insert a new sign sorted by line number and sign priority.
- */
-    static void
-insert_sign_by_lnum_prio(
-    buf_T	*buf,		// buffer to store sign in
-    signlist_T	*prev,		// previous sign entry
-    int		id,		// sign ID
-    char_u	*group,		// sign group; NULL for global group
-    int		prio,		// sign priority
-    linenr_T	lnum,		// line number which gets the mark
-    int		typenr)		// typenr of sign we are adding
-{
-    signlist_T	*sign;
-
-    // keep signs sorted by lnum and by priority: insert new sign at
-    // the proper position in the list for this lnum.
-    while (prev != NULL && prev->lnum == lnum && prev->priority <= prio)
-	prev = prev->prev;
-    if (prev == NULL)
-	sign = buf->b_signlist;
-    else
-	sign = prev->next;
-
-    insert_sign(buf, prev, sign, id, group, prio, lnum, typenr);
-}
-
-/*
- * Returns TRUE if 'sign' is in 'group'.
- * A sign can either be in the global group (sign->group == NULL)
- * or in a named group. If 'group' is '*', then the sign is part of the group.
- */
-    int
-sign_in_group(signlist_T *sign, char_u *group)
-{
-    return ((group != NULL && STRCMP(group, "*") == 0)
-	    || (group == NULL && sign->group == NULL)
-	    || (group != NULL && sign->group != NULL
-				 && STRCMP(group, sign->group->sg_name) == 0));
-}
-
-/*
- * Return information about a sign in a Dict
- */
-    dict_T *
-sign_get_info(signlist_T *sign)
-{
-    dict_T	*d;
-
-    if ((d = dict_alloc_id(aid_sign_getinfo)) == NULL)
-	return NULL;
-    dict_add_number(d, "id", sign->id);
-    dict_add_string(d, "group", (sign->group == NULL) ?
-					(char_u *)"" : sign->group->sg_name);
-    dict_add_number(d, "lnum", sign->lnum);
-    dict_add_string(d, "name", sign_typenr2name(sign->typenr));
-    dict_add_number(d, "priority", sign->priority);
-
-    return d;
-}
-
-/*
- * Add the sign into the signlist. Find the right spot to do it though.
- */
-    void
-buf_addsign(
-    buf_T	*buf,		// buffer to store sign in
-    int		id,		// sign ID
-    char_u	*groupname,	// sign group
-    int		prio,		// sign priority
-    linenr_T	lnum,		// line number which gets the mark
-    int		typenr)		// typenr of sign we are adding
-{
-    signlist_T	*sign;		// a sign in the signlist
-    signlist_T	*prev;		// the previous sign
-
-    prev = NULL;
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-    {
-	if (lnum == sign->lnum && id == sign->id &&
-		sign_in_group(sign, groupname))
-	{
-	    // Update an existing sign
-	    sign->typenr = typenr;
-	    return;
-	}
-	else if (lnum < sign->lnum)
-	{
-	    insert_sign_by_lnum_prio(buf, prev, id, groupname, prio,
-								lnum, typenr);
-	    return;
-	}
-	prev = sign;
-    }
-
-    insert_sign_by_lnum_prio(buf, prev, id, groupname, prio, lnum, typenr);
-    return;
-}
-
-/*
- * For an existing, placed sign "markId" change the type to "typenr".
- * Returns the line number of the sign, or zero if the sign is not found.
- */
-    linenr_T
-buf_change_sign_type(
-    buf_T	*buf,		// buffer to store sign in
-    int		markId,		// sign ID
-    char_u	*group,		// sign group
-    int		typenr)		// typenr of sign we are adding
-{
-    signlist_T	*sign;		// a sign in the signlist
-
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-    {
-	if (sign->id == markId && sign_in_group(sign, group))
-	{
-	    sign->typenr = typenr;
-	    return sign->lnum;
-	}
-    }
-
-    return (linenr_T)0;
-}
-
-/*
- * Return the type number of the sign at line number 'lnum' in buffer 'buf'
- * which has the attribute specifed by 'type'. Returns 0 if a sign is not found
- * at the line number or it doesn't have the specified attribute.
- */
-    int
-buf_getsigntype(
-    buf_T	*buf,
-    linenr_T	lnum,
-    int		type)	/* SIGN_ICON, SIGN_TEXT, SIGN_ANY, SIGN_LINEHL */
-{
-    signlist_T	*sign;		/* a sign in a b_signlist */
-
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-	if (sign->lnum == lnum
-		&& (type == SIGN_ANY
-# ifdef FEAT_SIGN_ICONS
-		    || (type == SIGN_ICON
-			&& sign_get_image(sign->typenr) != NULL)
-# endif
-		    || (type == SIGN_TEXT
-			&& sign_get_text(sign->typenr) != NULL)
-		    || (type == SIGN_LINEHL
-			&& sign_get_attr(sign->typenr, TRUE) != 0)))
-	    return sign->typenr;
-    return 0;
-}
-
-/*
- * Delete sign 'id' in group 'group' from buffer 'buf'.
- * If 'id' is zero, then delete all the signs in group 'group'. Otherwise
- * delete only the specified sign.
- * If 'group' is '*', then delete the sign in all the groups. If 'group' is
- * NULL, then delete the sign in the global group. Otherwise delete the sign in
- * the specified group.
- * Returns the line number of the deleted sign. If multiple signs are deleted,
- * then returns the line number of the last sign deleted.
- */
-    linenr_T
-buf_delsign(
-    buf_T	*buf,		// buffer sign is stored in
-    linenr_T	atlnum,		// sign at this line, 0 - at any line
-    int		id,		// sign id
-    char_u	*group)		// sign group
-{
-    signlist_T	**lastp;	// pointer to pointer to current sign
-    signlist_T	*sign;		// a sign in a b_signlist
-    signlist_T	*next;		// the next sign in a b_signlist
-    linenr_T	lnum;		// line number whose sign was deleted
-
-    lastp = &buf->b_signlist;
-    lnum = 0;
-    for (sign = buf->b_signlist; sign != NULL; sign = next)
-    {
-	next = sign->next;
-	if ((id == 0 || sign->id == id) &&
-		(atlnum == 0 || sign->lnum == atlnum) &&
-		sign_in_group(sign, group))
-
-	{
-	    *lastp = next;
-	    if (next != NULL)
-		next->prev = sign->prev;
-	    lnum = sign->lnum;
-	    if (sign->group != NULL)
-		sign_group_unref(sign->group->sg_name);
-	    vim_free(sign);
-	    update_debug_sign(buf, lnum);
-	    // Check whether only one sign needs to be deleted
-	    // If deleting a sign with a specific identifer in a particular
-	    // group or deleting any sign at a particular line number, delete
-	    // only one sign.
-	    if (group == NULL
-		    || (*group != '*' && id != 0)
-		    || (*group == '*' && atlnum != 0))
-		break;
-	}
-	else
-	    lastp = &sign->next;
-    }
-
-    // When deleted the last sign need to redraw the windows to remove the
-    // sign column.
-    if (buf->b_signlist == NULL)
-    {
-	redraw_buf_later(buf, NOT_VALID);
-	changed_cline_bef_curs();
-    }
-
-    return lnum;
-}
-
-
-/*
- * Find the line number of the sign with the requested id in group 'group'. If
- * the sign does not exist, return 0 as the line number. This will still let
- * the correct file get loaded.
- */
-    int
-buf_findsign(
-    buf_T	*buf,		// buffer to store sign in
-    int		id,		// sign ID
-    char_u	*group)		// sign group
-{
-    signlist_T	*sign;		// a sign in the signlist
-
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-	if (sign->id == id && sign_in_group(sign, group))
-	    return sign->lnum;
-
-    return 0;
-}
-
-/*
- * Return the sign at line 'lnum' in buffer 'buf'. Returns NULL if a sign is
- * not found at the line. If 'groupname' is NULL, searches in the global group.
- */
-    static signlist_T *
-buf_getsign_at_line(
-    buf_T	*buf,		// buffer whose sign we are searching for
-    linenr_T	lnum,		// line number of sign
-    char_u	*groupname)	// sign group name
-{
-    signlist_T	*sign;		// a sign in the signlist
-
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-	if (sign->lnum == lnum && sign_in_group(sign, groupname))
-	    return sign;
-
-    return NULL;
-}
-
-/*
- * Return the sign with identifier 'id' in group 'group' placed in buffer 'buf'
- */
-    signlist_T *
-buf_getsign_with_id(
-    buf_T	*buf,		// buffer whose sign we are searching for
-    int		id,		// sign identifier
-    char_u	*group)		// sign group
-{
-    signlist_T	*sign;		// a sign in the signlist
-
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-	if (sign->id == id && sign_in_group(sign, group))
-	    return sign;
-
-    return NULL;
-}
-
-/*
- * Return the identifier of the sign at line number 'lnum' in buffer 'buf'.
- */
-    int
-buf_findsign_id(
-    buf_T	*buf,		// buffer whose sign we are searching for
-    linenr_T	lnum,		// line number of sign
-    char_u	*groupname)	// sign group name
-{
-    signlist_T	*sign;		// a sign in the signlist
-
-    sign = buf_getsign_at_line(buf, lnum, groupname);
-    if (sign != NULL)
-	return sign->id;
-
-    return 0;
-}
-
-# if defined(FEAT_NETBEANS_INTG) || defined(PROTO)
-/*
- * See if a given type of sign exists on a specific line.
- */
-    int
-buf_findsigntype_id(
-    buf_T	*buf,		/* buffer whose sign we are searching for */
-    linenr_T	lnum,		/* line number of sign */
-    int		typenr)		/* sign type number */
-{
-    signlist_T	*sign;		/* a sign in the signlist */
-
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-	if (sign->lnum == lnum && sign->typenr == typenr)
-	    return sign->id;
-
-    return 0;
-}
-
-
-#  if defined(FEAT_SIGN_ICONS) || defined(PROTO)
-/*
- * Return the number of icons on the given line.
- */
-    int
-buf_signcount(buf_T *buf, linenr_T lnum)
-{
-    signlist_T	*sign;		// a sign in the signlist
-    int		count = 0;
-
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-	if (sign->lnum == lnum)
-	    if (sign_get_image(sign->typenr) != NULL)
-		count++;
-
-    return count;
-}
-#  endif /* FEAT_SIGN_ICONS */
-# endif /* FEAT_NETBEANS_INTG */
-
-/*
- * Delete signs in group 'group' in buffer "buf". If 'group' is '*', then
- * delete all the signs.
- */
-    void
-buf_delete_signs(buf_T *buf, char_u *group)
-{
-    signlist_T	*sign;
-    signlist_T	**lastp;	// pointer to pointer to current sign
-    signlist_T	*next;
-
-    // When deleting the last sign need to redraw the windows to remove the
-    // sign column. Not when curwin is NULL (this means we're exiting).
-    if (buf->b_signlist != NULL && curwin != NULL)
-    {
-	redraw_buf_later(buf, NOT_VALID);
-	changed_cline_bef_curs();
-    }
-
-    lastp = &buf->b_signlist;
-    for (sign = buf->b_signlist; sign != NULL; sign = next)
-    {
-	next = sign->next;
-	if (sign_in_group(sign, group))
-	{
-	    *lastp = next;
-	    if (next != NULL)
-		next->prev = sign->prev;
-	    if (sign->group != NULL)
-		sign_group_unref(sign->group->sg_name);
-	    vim_free(sign);
-	}
-	else
-	    lastp = &sign->next;
-    }
-}
-
-/*
- * Delete all the signs in the specified group in all the buffers.
- */
-    void
-buf_delete_all_signs(char_u *groupname)
-{
-    buf_T	*buf;		/* buffer we are checking for signs */
-
-    FOR_ALL_BUFFERS(buf)
-	if (buf->b_signlist != NULL)
-	    buf_delete_signs(buf, groupname);
-}
-
-/*
- * List placed signs for "rbuf".  If "rbuf" is NULL do it for all buffers.
- */
-    void
-sign_list_placed(buf_T *rbuf, char_u *sign_group)
-{
-    buf_T	*buf;
-    signlist_T	*sign;
-    char	lbuf[BUFSIZ];
-    char	group[BUFSIZ];
-
-    MSG_PUTS_TITLE(_("\n--- Signs ---"));
-    msg_putchar('\n');
-    if (rbuf == NULL)
-	buf = firstbuf;
-    else
-	buf = rbuf;
-    while (buf != NULL && !got_int)
-    {
-	if (buf->b_signlist != NULL)
-	{
-	    vim_snprintf(lbuf, BUFSIZ, _("Signs for %s:"), buf->b_fname);
-	    MSG_PUTS_ATTR(lbuf, HL_ATTR(HLF_D));
-	    msg_putchar('\n');
-	}
-	FOR_ALL_SIGNS_IN_BUF(buf, sign)
-	{
-	    if (got_int)
-		break;
-	    if (!sign_in_group(sign, sign_group))
-		continue;
-	    if (sign->group != NULL)
-		vim_snprintf(group, BUFSIZ, "  group=%s",
-							sign->group->sg_name);
-	    else
-		group[0] = '\0';
-	    vim_snprintf(lbuf, BUFSIZ, _("    line=%ld  id=%d%s  name=%s "
-							"priority=%d"),
-			   (long)sign->lnum, sign->id, group,
-			   sign_typenr2name(sign->typenr), sign->priority);
-	    MSG_PUTS(lbuf);
-	    msg_putchar('\n');
-	}
-	if (rbuf != NULL)
-	    break;
-	buf = buf->b_next;
-    }
-}
-
-/*
- * Adjust a placed sign for inserted/deleted lines.
- */
-    void
-sign_mark_adjust(
-    linenr_T	line1,
-    linenr_T	line2,
-    long	amount,
-    long	amount_after)
-{
-    signlist_T	*sign;		/* a sign in a b_signlist */
-
-    FOR_ALL_SIGNS_IN_BUF(curbuf, sign)
-    {
-	if (sign->lnum >= line1 && sign->lnum <= line2)
-	{
-	    if (amount == MAXLNUM)
-		sign->lnum = line1;
-	    else
-		sign->lnum += amount;
-	}
-	else if (sign->lnum > line2)
-	    sign->lnum += amount_after;
-    }
-}
-#endif /* FEAT_SIGNS */
-
 /*
  * Set 'buflisted' for curbuf to "on" and trigger autocommands if it changed.
  */
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 2e9b16a3e3..97921e7c04 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -4424,24 +4424,6 @@ f_get(typval_T *argvars, typval_T *rettv)
 	copy_tv(tv, rettv);
 }
 
-#ifdef FEAT_SIGNS
-/*
- * Returns information about signs placed in a buffer as list of dicts.
- */
-    static void
-get_buffer_signs(buf_T *buf, list_T *l)
-{
-    signlist_T	*sign;
-    dict_T	*d;
-
-    FOR_ALL_SIGNS_IN_BUF(buf, sign)
-    {
-	if ((d = sign_get_info(sign)) != NULL)
-	    list_append_dict(l, d);
-    }
-}
-#endif
-
 /*
  * Returns buffer options, variables and other attributes in a dictionary.
  */
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index 208f2b5766..52c0e5bedd 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -7579,1252 +7579,6 @@ ex_helptags(exarg_T *eap)
     }
 }
 
-#if defined(FEAT_SIGNS) || defined(PROTO)
-