vim-patch:7.4.977

Problem:    'linebreak' does not work properly when using "space" in
            'listchars'.
Solution:   (Hirohito Higashi, Christian Brabandt)

9bc01ebb95

src/nvim/screen.c

@@ -2430,13 +2430,18 @@ win_line (
     }
   }
 
-  /* find start of trailing whitespace */
-  if (wp->w_p_list && lcs_trail) {
-    trailcol = (colnr_T)STRLEN(ptr);
-    while (trailcol > (colnr_T)0 && ascii_iswhite(ptr[trailcol - 1]))
-      --trailcol;
-    trailcol += (colnr_T) (ptr - line);
-    extra_check = TRUE;
+  if (wp->w_p_list) {
+    if (lcs_space || lcs_trail) {
+      extra_check = true;
+    }
+    // find start of trailing whitespace
+    if (lcs_trail) {
+      trailcol = (colnr_T)STRLEN(ptr);
+      while (trailcol > (colnr_T)0 && ascii_iswhite(ptr[trailcol - 1])) {
+        trailcol--;
+      }
+      trailcol += (colnr_T) (ptr - line);
+    }
   }
 
   /*
@@ -3201,27 +3206,7 @@ win_line (
         }
 
       }
-      ++ptr;
-
-      // 'list': change char 160 to lcs_nbsp and space to lcs_space.
-      if (wp->w_p_list
-          && (((c == 160 || (mb_utf8 && (mb_c == 160 || mb_c == 0x202f)))
-               && lcs_nbsp)
-              || (c == ' ' && lcs_space && ptr - line <=  trailcol))) {
-        c = (c == ' ') ? lcs_space : lcs_nbsp;
-        if (area_attr == 0 && search_attr == 0) {
-          n_attr = 1;
-          extra_attr = hl_attr(HLF_8);
-          saved_attr2 = char_attr;           /* save current attr */
-        }
-        mb_c = c;
-        if (enc_utf8 && (*mb_char2len)(c) > 1) {
-          mb_utf8 = TRUE;
-          u8cc[0] = 0;
-          c = 0xc0;
-        } else
-          mb_utf8 = FALSE;
-      }
+      ptr++;
 
       if (extra_check) {
         bool can_spell = true;
@@ -3368,6 +3353,28 @@ win_line (
           }
         }
 
+        // 'list': change char 160 to lcs_nbsp and space to lcs_space.
+        if (wp->w_p_list
+            && (((c == 160
+                  || (mb_utf8 && (mb_c == 160 || mb_c == 0x202f)))
+                 && lcs_nbsp)
+                || (c == ' ' && lcs_space && ptr - line <= trailcol))) {
+          c = (c == ' ') ? lcs_space : lcs_nbsp;
+          if (area_attr == 0 && search_attr == 0) {
+            n_attr = 1;
+            extra_attr = hl_attr(HLF_8);
+            saved_attr2 = char_attr;  // save current attr
+          }
+          mb_c = c;
+          if (enc_utf8 && (*mb_char2len)(c) > 1) {
+            mb_utf8 = true;
+            u8cc[0] = 0;
+            c = 0xc0;
+          } else {
+            mb_utf8 = false;
+          }
+        }
+
         if (trailcol != MAXCOL && ptr > line + trailcol && c == ' ') {
           c = lcs_trail;
           if (!attr_pri) {

src/nvim/testdir/test_listlbr.in

@@ -24,20 +24,24 @@ STARTTEST
 :	$put =g:line
 :	wincmd p
 :endfu
+:"
 :let g:test="Test 1: set linebreak"
 :redraw!
 :let line=ScreenChar(winwidth(0))
 :call DoRecordScreen()
+:"
 :let g:test="Test 2: set linebreak + set list"
 :set linebreak list listchars=
 :redraw!
 :let line=ScreenChar(winwidth(0))
 :call DoRecordScreen()
+:"
 :let g:test ="Test 3: set linebreak nolist"
 :set nolist linebreak
 :redraw!
 :let line=ScreenChar(winwidth(0))
 :call DoRecordScreen()
+:"
 :let g:test ="Test 4: set linebreak with tab and 1 line as long as screen: should break!"
 :set nolist linebreak ts=8
 :let line="1\t".repeat('a', winwidth(0)-2)
@@ -51,6 +55,7 @@ STARTTEST
 :$put =line
 :$
 :norm! zt
+:"
 :let g:test ="Test 5: set linebreak with conceal and set list and tab displayed by different char (line may not be truncated)"
 :set cpo&vim list linebreak conceallevel=2 concealcursor=nv listchars=tab:ab
 :syn match ConcealVar contained /_/ conceal
@@ -58,6 +63,7 @@ STARTTEST
 :let line=ScreenChar(winwidth(0))
 :call DoRecordScreen()
 :set cpo&vim linebreak
+:"
 :let g:test ="Test 6: set linebreak with visual block mode"
 :let line="REMOVE: this not"
 :$put =g:test
@@ -67,20 +73,24 @@ STARTTEST
 :1/^REMOVE:
 0jf x:$put
 :set cpo&vim linebreak
+:"
 :let g:test ="Test 7: set linebreak with visual block mode and v_b_A"
 :$put =g:test
 Golong line: 40afoobar aTARGET at end
 :exe "norm! $3B\<C-v>eAx\<Esc>"
 :set cpo&vim linebreak sbr=
+:"
 :let g:test ="Test 8: set linebreak with visual char mode and changing block"
 :$put =g:test
 Go1111-1111-1111-11-1111-1111-11110f-lv3lc2222bgj.
+:"
 :let g:test ="Test 9: using redo after block visual mode"
 :$put =g:test
 Go
 aaa
 aaa
 a2k2j~e.
+:"
 :let g:test ="Test 10: using normal commands after block-visual"
 :$put =g:test
 :set linebreak
@@ -88,10 +98,22 @@ Go
 abcd{ef
 ghijklm
 no}pqrs2k0f{c%
+:"
 :let g:test ="Test 11: using block replace mode after wrapping"
 :$put =g:test
 :set linebreak wrap
 Go150aayypk147|jr0
+:"
+:let g:test ="Test 12: set linebreak list listchars=space:_,tab:>-,tail:-,eol:$"
+:set list listchars=space:_,trail:-,tab:>-,eol:$
+:$put =g:test
+:let line="a aaaaaaaaaaaaaaaaaaaaaa\ta "
+:$put =line
+:$
+:norm! zt
+:redraw!
+:let line=ScreenChar(winwidth(0))
+:call DoRecordScreen()
 :%w! test.out
 :qa!
 ENDTEST

src/nvim/testdir/test_listlbr.ok

@@ -52,3 +52,11 @@ abcdpqrs
 Test 11: using block replace mode after wrapping
 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa0aaa
 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa0aaa
+Test 12: set linebreak list listchars=space:_,tab:>-,tail:-,eol:$
+a aaaaaaaaaaaaaaaaaaaaaa	a 
+
+Test 12: set linebreak list listchars=space:_,tab:>-,tail:-,eol:$
+a_                  
+aaaaaaaaaaaaaaaaaaaa
+aa>-----a-$         
+~                   

src/nvim/version.c

@@ -311,7 +311,7 @@ static int included_patches[] = {
   980,
   // 979 NA
   978,
-  // 977,
+  977,
   // 976 NA
   975,
   // 974,