vim-patch: 7.4.353

Make 'breakindent' work with the 'list' option.

Originally patched in vim patch 7.4.353, by chrisbra
(https://code.google.com/p/vim/source/detail?r=d42a1d3b74d40f580359dbd139d2d0dfa7235252)

Updated version.c.

src/nvim/charset.c

@@ -997,7 +997,6 @@ int win_lbr_chartabsize(win_T *wp, char_u *line, char_u *s, colnr_T col, int *he
   if (wp->w_p_lbr
       && vim_isbreak(c)
       && !vim_isbreak(s[1])
-      && !wp->w_p_list
       && wp->w_p_wrap
       && (wp->w_width != 0)) {
     // Count all characters from first non-blank after a blank up to next

src/nvim/option.c

@@ -8157,9 +8157,10 @@ void find_mps_values(int *initc, int *findc, int *backwards, int switchit)
   }
 }
 
-/* This is called when 'breakindentopt' is changed and whenn a window is
+/* This is called when 'breakindentopt' is changed and when a window is
    initialized */
-int briopt_check() {
+int briopt_check(void) 
+{
   char_u	*p;
   int bri_shift = 0;
   long bri_min = 20;

src/nvim/screen.c

@@ -2197,6 +2197,7 @@ win_line (
   char_u extra[18];                     /* line number and 'fdc' must fit in here */
   int n_extra = 0;                      /* number of extra chars */
   char_u      *p_extra = NULL;          /* string of extra chars, plus NUL */
+  char_u      *p_extra_free = NULL;     /* p_extra needs to be freed */
   int c_extra = NUL;                    /* extra chars, all the same */
   int extra_attr = 0;                   /* attributes when n_extra != 0 */
   static char_u *at_end_str = (char_u *)"";   /* used for p_extra when
@@ -3108,6 +3109,10 @@ win_line (
       }
       --n_extra;
     } else {
+      if (p_extra_free != NULL) {
+        free(p_extra_free);
+        p_extra_free = NULL;
+      }
       /*
        * Get a character from the line itself.
        */
@@ -3408,19 +3413,20 @@ win_line (
         /*
          * Found last space before word: check for line break.
          */
-        if (wp->w_p_lbr && vim_isbreak(c) && !vim_isbreak(*ptr)
-            && !wp->w_p_list) {
+        if (wp->w_p_lbr && vim_isbreak(c) && !vim_isbreak(*ptr)) {
           char_u *p = ptr - (
               has_mbyte ? mb_l :
               1);
           // TODO: is passing p for start of the line OK?
-          n_extra = win_lbr_chartabsize(wp, p, p, (colnr_T)vcol, NULL) - 1;
+          n_extra = win_lbr_chartabsize(wp, line, p, (colnr_T)vcol, NULL) - 1;
           c_extra = ' ';
           if (vim_iswhite(c)) {
             if (c == TAB)
               /* See "Tab alignment" below. */
               FIX_FOR_BOGUSCOLS;
-            c = ' ';
+            if (!wp->w_p_list) {
+              c = ' ';
+            }
           }
         }
 
@@ -3451,9 +3457,36 @@ win_line (
          * into "ScreenLines".
          */
         if (c == TAB && (!wp->w_p_list || lcs_tab1)) {
+          int tab_len = 0;
           /* tab amount depends on current column */
-          n_extra = (int)wp->w_buffer->b_p_ts
+          tab_len = (int)wp->w_buffer->b_p_ts
                     - vcol % (int)wp->w_buffer->b_p_ts - 1;
+          if (!wp->w_p_lbr) {
+            n_extra = tab_len;
+          } else {
+            char_u *p;
+            int    len = n_extra;
+            int    i;
+            int    saved_nextra = n_extra;
+
+            /* if n_extra > 0, it gives the number of chars to use for
+             * a tab, else we need to calculate the width for a tab */
+            len = (tab_len * mb_char2len(lcs_tab2));
+            if (n_extra > 0) {
+              len += n_extra - tab_len;
+            }
+            c = lcs_tab1;
+            p = xmalloc(len + 1);
+            memset(p, ' ', len);
+            p[len] = NUL;
+            p_extra_free = p;
+            for (i = 0; i < tab_len; i++) {
+              mb_char2bytes(lcs_tab2, p);
+              p += mb_char2len(lcs_tab2);
+              n_extra += mb_char2len(lcs_tab2) - (saved_nextra > 0 ? 1: 0);
+            }
+            p_extra = p_extra_free;
+          }
           /* Tab alignment should be identical regardless of
            * 'conceallevel' value. So tab compensates of all
            * previous concealed characters, and thus resets vcol_off
@@ -3464,8 +3497,12 @@ win_line (
           mb_utf8 = FALSE;              /* don't draw as UTF-8 */
           if (wp->w_p_list) {
             c = lcs_tab1;
-            c_extra = lcs_tab2;
-            n_attr = n_extra + 1;
+            if (wp->w_p_lbr) {
+              c_extra = NUL; /* using p_extra from above */
+            } else {
+              c_extra = lcs_tab2;
+            }
+            n_attr = tab_len + 1;
             extra_attr = hl_attr(HLF_8);
             saved_attr2 = char_attr;             /* save current attr */
             mb_c = c;
@@ -3527,9 +3564,20 @@ win_line (
           p_extra = transchar(c);
           if ((dy_flags & DY_UHEX) && wp->w_p_rl)
             rl_mirror(p_extra);                 /* reverse "<12>" */
-          n_extra = byte2cells(c) - 1;
           c_extra = NUL;
-          c = *p_extra++;
+          if (wp->w_p_lbr) {
+            char_u *p;
+
+            c = *p_extra;
+            p = xmalloc(n_extra + 1);
+            memset(p, ' ', n_extra);
+            STRNCPY(p, p_extra + 1, STRLEN(p_extra) - 1);
+            p[n_extra] = NUL;
+            p_extra_free = p_extra = p;
+          } else {
+            n_extra = byte2cells(c) - 1;
+            c = *p_extra++;
+          }
           if (!attr_pri) {
             n_attr = n_extra + 1;
             extra_attr = hl_attr(HLF_8);

src/nvim/testdir/test_listlbr.in

@@ -0,0 +1,62 @@
+Test for linebreak and list option
+
+STARTTEST
+:so small.vim
+:if !exists("+linebreak") | e! test.ok | w! test.out | qa! | endif
+:10new|:vsp|:vert resize 20
+:put =\"\tabcdef hijklmn\tpqrstuvwxyz\u00a01060ABCDEFGHIJKLMNOP \"
+:norm! zt
+:set ts=4 sw=4 sts=4 linebreak sbr=+ wrap
+:fu! ScreenChar(width)
+:	let c=''
+:	for j in range(1,4)
+:	    for i in range(1,a:width)
+:	    	let c.=nr2char(screenchar(j, i))
+:	    endfor
+:           let c.="\n"
+:	endfor
+:	return c
+:endfu
+:fu! DoRecordScreen()
+:	wincmd l
+:	$put =printf(\"\n%s\", g:test)
+:	$put =g:line
+:	wincmd p
+:endfu
+:let g:test="Test 1: set linebreak"
+:redraw!
+:let line=ScreenChar(winwidth(0))
+:call DoRecordScreen()
+:let g:test="Test 2: set linebreak + set list"
+:set linebreak list listchars=
+:redraw!
+:let line=ScreenChar(winwidth(0))
+:call DoRecordScreen()
+:let g:test ="Test 3: set linebreak + set list + fancy listchars"
+:exe "set linebreak list listchars=nbsp:\u2423,tab:\u2595\u2014,trail:\u02d1,eol:\ub6"
+:redraw!
+:let line=ScreenChar(winwidth(0))
+:call DoRecordScreen()
+:let g:test ="Test 4: set linebreak nolist"
+:set nolist linebreak
+:redraw!
+:let line=ScreenChar(winwidth(0))
+:call DoRecordScreen()
+:let g:test ="Test 5: set nolinebreak list"
+:set list nolinebreak
+:redraw!
+:let line=ScreenChar(winwidth(0))
+:call DoRecordScreen()
+:let g:test ="Test 6: set linebreak with tab and 1 line as long as screen: should break!"
+:set nolist linebreak ts=8
+:let line="1\t".repeat('a', winwidth(0)-2)
+:$put =line
+:$
+:norm! zt
+:redraw!
+:let line=ScreenChar(winwidth(0))
+:call DoRecordScreen()
+:%w! test.out
+:qa!
+ENDTEST
+dummy text

src/nvim/testdir/test_listlbr.ok

@@ -0,0 +1,39 @@
+
+	abcdef hijklmn	pqrstuvwxyz 1060ABCDEFGHIJKLMNOP 
+
+Test 1: set linebreak
+    abcdef          
++hijklmn            
++pqrstuvwxyz 1060ABC
++DEFGHIJKLMNOP      
+
+Test 2: set linebreak + set list
+^Iabcdef hijklmn^I  
++pqrstuvwxyz 1060ABC
++DEFGHIJKLMNOP      
+                    
+
+Test 3: set linebreak + set list + fancy listchars
+▕———abcdef          
++hijklmn▕———        
++pqrstuvwxyz␣1060ABC
++DEFGHIJKLMNOPˑ¶    
+
+Test 4: set linebreak nolist
+    abcdef          
++hijklmn            
++pqrstuvwxyz 1060ABC
++DEFGHIJKLMNOP      
+
+Test 5: set nolinebreak list
+▕———abcdef hijklmn▕—
++pqrstuvwxyz␣1060ABC
++DEFGHIJKLMNOPˑ¶    
+¶                   
+1	aaaaaaaaaaaaaaaaaa
+
+Test 6: set linebreak with tab and 1 line as long as screen: should break!
+1                   
++aaaaaaaaaaaaaaaaaa 
+~                   
+~                   

src/nvim/version.c

@@ -242,14 +242,14 @@ static int included_patches[] = {
   //356 NA
   //355,
   //354,
-  //353,
+  353,
   //352,
   //351,
   //350,
   //349,
   //348,
   //347,
-  //346,
+  346,
   //345,
   //344,
   //343,
@@ -257,7 +257,7 @@ static int included_patches[] = {
   //341,
   //340 NA
   //339,
-  //338,
+  338,
   //337,
   //336,
   335,