Remove EBCDIC: Clean up comments

7 files changed, 5 insertions, 25 deletions

diff --git a/src/nvim/charset.c b/src/nvim/charset.c
index 3e1e7c1870..baf6895b4c 100644
--- a/src/nvim/charset.c
+++ b/src/nvim/charset.c
@@ -89,9 +89,6 @@ int buf_init_chartab(buf_T *buf, int global)
     // Set the default size for printable characters:
     // From <Space> to '~' is 1 (printable), others are 2 (not printable).
     // This also inits all 'isident' and 'isfname' flags to FALSE.
-    //
-    // EBCDIC: all chars below ' ' are not printable, all others are
-    // printable.
     c = 0;
 
     while (c < ' ') {
@@ -583,11 +580,8 @@ void transchar_nonprint(char_u *buf, int c)
     buf[2] = NUL;
   } else {
     // 0x80 - 0x9f and 0xff
-    // TODO: EBCDIC I don't know what to do with this chars, so I display
-    // them as '~?' for now
     buf[0] = '~';
     buf[1] = (c - 0x80) ^ 0x40;
-    // 0xff displayed as ~?
     buf[2] = NUL;
   }
 }
diff --git a/src/nvim/file_search.c b/src/nvim/file_search.c
index 845a99acad..c7e1f5cbbc 100644
--- a/src/nvim/file_search.c
+++ b/src/nvim/file_search.c
@@ -409,7 +409,6 @@ vim_findfile_init (
      * The octet after a '**' is used as a (binary) counter.
      * So '**3' is transposed to '**^C' ('^C' is ASCII value 3)
      * or '**76' is transposed to '**N'( 'N' is ASCII value 76).
-     * For EBCDIC you get different character values.
      * If no restrict is given after '**' the default is used.
      * Due to this technique the path looks awful if you print it as a
      * string.
diff --git a/src/nvim/getchar.c b/src/nvim/getchar.c
index 340b31d80a..b4e5b3f5dd 100644
--- a/src/nvim/getchar.c
+++ b/src/nvim/getchar.c
@@ -543,9 +543,7 @@ AppendToRedobuffLit (
     /* Put a string of normal characters in the redo buffer (that's
      * faster). */
     start = s;
-    while (*s >= ' '
-           && *s < DEL          /* EBCDIC: all chars above space are normal */
-           && (len < 0 || s - str < len))
+    while (*s >= ' ' && *s < DEL && (len < 0 || s - str < len))
       ++s;
 
     /* Don't put '0' or '^' as last character, just in case a CTRL-D is
@@ -567,7 +565,7 @@ AppendToRedobuffLit (
     if (c < ' ' || c == DEL || (*s == NUL && (c == '0' || c == '^')))
       add_char_buff(&redobuff, Ctrl_V);
 
-    /* CTRL-V '0' must be inserted as CTRL-V 048 (EBCDIC: xf0) */
+    /* CTRL-V '0' must be inserted as CTRL-V 048 */
     if (*s == NUL && c == '0')
       add_buff(&redobuff, (char_u *)"048", 3L);
     else
diff --git a/src/nvim/hardcopy.c b/src/nvim/hardcopy.c
index 64a5879d7d..3770859ee4 100644
--- a/src/nvim/hardcopy.c
+++ b/src/nvim/hardcopy.c
@@ -1502,9 +1502,7 @@ static void prt_flush_buffer(void)
       prt_write_real(prt_text_run, 2);
       prt_write_string("ul\n");
     }
-    /* Draw the text
-     * Note: we write text out raw - EBCDIC conversion is handled in the
-     * PostScript world via the font encoding vector. */
+    // Draw the text
     if (prt_out_mbyte)
       prt_write_string("<");
     else
@@ -3031,9 +3029,7 @@ int mch_print_text_out(char_u *p, int len)
     if (ch < 32 || ch == '(' || ch == ')' || ch == '\\') {
       /* Convert non-printing characters to either their escape or octal
        * sequence, ensures PS sent over a serial line does not interfere
-       * with the comms protocol.  Note: For EBCDIC we need to write out
-       * the escape sequences as ASCII codes!
-       * Note 2: Char codes < 32 are identical in EBCDIC and ASCII AFAIK!
+       * with the comms protocol.
        */
       ga_append(&prt_ps_buffer, IF_EB('\\', 0134));
       switch (ch) {
diff --git a/src/nvim/mark_defs.h b/src/nvim/mark_defs.h
index c6f2e46bb0..67392234d3 100644
--- a/src/nvim/mark_defs.h
+++ b/src/nvim/mark_defs.h
@@ -8,9 +8,6 @@
  * (a normal mark is a lnum/col pair, the same as a file position)
  */
 
-/* (Note: for EBCDIC there are more than 26, because there are gaps in the
- * alphabet coding.  To minimize changes to the code, I decided to just
- * increase the number of possible marks. */
 #define NMARKS          ('z' - 'a' + 1) /* max. # of named marks */
 #define JUMPLISTSIZE    100             /* max. # of marks in jump list */
 #define TAGSTACKSIZE    20              /* max. # of tags in tag stack */
diff --git a/src/nvim/ops.c b/src/nvim/ops.c
index 3008af94f3..b4ecb12299 100644
--- a/src/nvim/ops.c
+++ b/src/nvim/ops.c
@@ -1147,10 +1147,7 @@ static void stuffescaped(char_u *arg, int literally)
      * stuff K_SPECIAL to get the effect of a special key when "literally"
      * is TRUE. */
     start = arg;
-    while ((*arg >= ' '
-            && *arg < DEL         /* EBCDIC: chars above space are normal */
-            )
-           || (*arg == K_SPECIAL && !literally))
+    while ((*arg >= ' ' && *arg < DEL) || (*arg == K_SPECIAL && !literally))
       ++arg;
     if (arg > start)
       stuffReadbuffLen(start, (long)(arg - start));
diff --git a/src/nvim/spell.c b/src/nvim/spell.c
index 8ef67c95f7..875f34f55c 100644
--- a/src/nvim/spell.c
+++ b/src/nvim/spell.c
@@ -8009,7 +8009,6 @@ static void init_spellfile(void)
 }
 
 // Init the chartab used for spelling for ASCII.
-// EBCDIC is not supported!
 static void clear_spell_chartab(spelltab_T *sp)
 {
   int i;