patch 8.0.0641: cannot set a separate highlighting for the quickfix line

Problem:    Cannot set a separate highlighting for the current line in the
            quickfix window.
Solution:   Add QuickFixLine. (anishsane, closes #1755)

runtime/doc/options.txt

@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 8.0.  Last change: 2017 Jun 04
+*options.txt*	For Vim version 8.0.  Last change: 2017 Jun 13
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -3522,6 +3522,9 @@ A jump table for the options with a short description can be found at |Q_op|.
 		:s///gg		  subst. all	  subst. one
 
 	NOTE: This option is reset when 'compatible' is set.
+	DEPRECATED: Setting this option may break plugins that are not aware
+	of this option.  Also, many users get confused that adding the /g flag
+	has the opposite effect of that it normally does.
 
 						*'grepformat'* *'gfm'*
 'grepformat' 'gfm'	string	(default "%f:%l:%m,%f:%l%m,%f  %l%m")
@@ -4037,7 +4040,9 @@ A jump table for the options with a short description can be found at |Q_op|.
 				     D:DiffDelete,T:DiffText,>:SignColumn,
 				     B:SpellBad,P:SpellCap,R:SpellRare,
 				     L:SpellLocal,-:Conceal,+:Pmenu,=:PmenuSel,
-				     x:PmenuSbar,X:PmenuThumb")
+				     x:PmenuSbar,X:PmenuThumb,*:TabLine,
+				     #:TabLineSel,_:TabLineFill,!:CursorColumn,
+				     .:CursorLine,o:ColorColumn,q:QuickFixLine")
 			global
 			{not in Vi}
 	This option can be used to set highlighting mode for various

runtime/doc/quickfix.txt

@@ -1,4 +1,4 @@
-*quickfix.txt*  For Vim version 8.0.  Last change: 2017 Mar 06
+*quickfix.txt*  For Vim version 8.0.  Last change: 2017 Jun 13
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -472,7 +472,11 @@ keep its height, ignoring 'winheight' and 'equalalways'.  You can change the
 height manually (e.g., by dragging the status line above it with the mouse).
 
 In the quickfix window, each line is one error.  The line number is equal to
-the error number.  You can use ":.cc" to jump to the error under the cursor.
+the error number.  The current entry is highlighted with the QuickFixLine
+highlighting.  You can change it to your liking, e.g.: >
+	:hi QuickFixLine ctermbg=Yellow guibg=Yellow
+
+You can use ":.cc" to jump to the error under the cursor.
 Hitting the <Enter> key or double-clicking the mouse on a line has the same
 effect.  The file containing the error is opened in the window above the
 quickfix window.  If there already is a window for that file, it is used

src/option.c

@@ -476,8 +476,9 @@ struct vimoption
 /* Make the string as short as possible when compiling with few features. */
 #if defined(FEAT_DIFF) || defined(FEAT_FOLDING) || defined(FEAT_SPELL) \
 	|| defined(FEAT_WINDOWS) || defined(FEAT_CLIPBOARD) \
-	|| defined(FEAT_INS_EXPAND) || defined(FEAT_SYN_HL) || defined(FEAT_CONCEAL)
-# define HIGHLIGHT_INIT "8:SpecialKey,~:EndOfBuffer,@:NonText,d:Directory,e:ErrorMsg,i:IncSearch,l:Search,m:MoreMsg,M:ModeMsg,n:LineNr,N:CursorLineNr,r:Question,s:StatusLine,S:StatusLineNC,c:VertSplit,t:Title,v:Visual,V:VisualNOS,w:WarningMsg,W:WildMenu,f:Folded,F:FoldColumn,A:DiffAdd,C:DiffChange,D:DiffDelete,T:DiffText,>:SignColumn,-:Conceal,B:SpellBad,P:SpellCap,R:SpellRare,L:SpellLocal,+:Pmenu,=:PmenuSel,x:PmenuSbar,X:PmenuThumb,*:TabLine,#:TabLineSel,_:TabLineFill,!:CursorColumn,.:CursorLine,o:ColorColumn"
+	|| defined(FEAT_INS_EXPAND) || defined(FEAT_SYN_HL) \
+	|| defined(FEAT_CONCEAL) || defined(FEAT_QUICKFIX)
+# define HIGHLIGHT_INIT "8:SpecialKey,~:EndOfBuffer,@:NonText,d:Directory,e:ErrorMsg,i:IncSearch,l:Search,m:MoreMsg,M:ModeMsg,n:LineNr,N:CursorLineNr,r:Question,s:StatusLine,S:StatusLineNC,c:VertSplit,t:Title,v:Visual,V:VisualNOS,w:WarningMsg,W:WildMenu,f:Folded,F:FoldColumn,A:DiffAdd,C:DiffChange,D:DiffDelete,T:DiffText,>:SignColumn,-:Conceal,B:SpellBad,P:SpellCap,R:SpellRare,L:SpellLocal,+:Pmenu,=:PmenuSel,x:PmenuSbar,X:PmenuThumb,*:TabLine,#:TabLineSel,_:TabLineFill,!:CursorColumn,.:CursorLine,o:ColorColumn,q:QuickFixLine"
 #else
 # define HIGHLIGHT_INIT "8:SpecialKey,@:NonText,d:Directory,e:ErrorMsg,i:IncSearch,l:Search,m:MoreMsg,M:ModeMsg,n:LineNr,N:CursorLineNr,r:Question,s:StatusLine,S:StatusLineNC,t:Title,v:Visual,w:WarningMsg,W:WildMenu,>:SignColumn,*:TabLine,#:TabLineSel,_:TabLineFill"
 #endif

src/quickfix.c

@@ -2575,7 +2575,7 @@ qf_list(exarg_T *eap)
 		vim_snprintf((char *)IObuff, IOSIZE, "%2d %s",
 							    i, (char *)fname);
 	    msg_outtrans_attr(IObuff, i == qi->qf_lists[qi->qf_curlist].qf_index
-					   ? HL_ATTR(HLF_L) : HL_ATTR(HLF_D));
+					   ? HL_ATTR(HLF_QFL) : HL_ATTR(HLF_D));
 	    if (qfp->qf_lnum == 0)
 		IObuff[0] = NUL;
 	    else if (qfp->qf_col == 0)

src/screen.c

@@ -3371,7 +3371,7 @@ win_line(
 # if defined(FEAT_QUICKFIX) && defined(FEAT_WINDOWS)
     /* Highlight the current line in the quickfix window. */
     if (bt_quickfix(wp->w_buffer) && qf_current_entry(wp) == lnum)
-	line_attr = HL_ATTR(HLF_L);
+	line_attr = HL_ATTR(HLF_QFL);
 # endif
     if (line_attr != 0)
 	area_highlighting = TRUE;

src/syntax.c

@@ -6970,6 +6970,8 @@ static char *(highlight_init_light[]) =
 #ifdef FEAT_GUI
 	"Normal gui=NONE",
 #endif
+	CENT("QuickFixLine term=reverse ctermbg=Cyan",
+	     "QuickFixLine term=reverse ctermbg=Cyan guibg=Cyan"),
 	NULL
     };
 
@@ -7055,6 +7057,8 @@ static char *(highlight_init_dark[]) =
 	CENT("Conceal ctermbg=DarkGrey ctermfg=LightGrey",
 	     "Conceal ctermbg=DarkGrey ctermfg=LightGrey guibg=DarkGrey guifg=LightGrey"),
 #endif
+	CENT("QuickFixLine term=reverse ctermbg=Cyan",
+	     "QuickFixLine term=reverse ctermbg=Cyan guibg=Cyan"),
 #ifdef FEAT_GUI
 	"Normal gui=NONE",
 #endif

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    641,
 /**/
     640,
 /**/

src/vim.h

@@ -1433,6 +1433,7 @@ typedef enum
     , HLF_CUC	    /* 'cursurcolumn' */
     , HLF_CUL	    /* 'cursurline' */
     , HLF_MC	    /* 'colorcolumn' */
+    , HLF_QFL	    /* quickfix window line currently selected */
     , HLF_COUNT	    /* MUST be the last one */
 } hlf_T;
 
@@ -1442,7 +1443,7 @@ typedef enum
 		  'n', 'N', 'r', 's', 'S', 'c', 't', 'v', 'V', 'w', 'W', \
 		  'f', 'F', 'A', 'C', 'D', 'T', '-', '>', \
 		  'B', 'P', 'R', 'L', \
-		  '+', '=', 'x', 'X', '*', '#', '_', '!', '.', 'o'}
+		  '+', '=', 'x', 'X', '*', '#', '_', '!', '.', 'o', 'q'}
 
 /*
  * Boolean constants