Remove USE_CR and tag_fgets. #808

These features are only used by legacy Mac OS.

7 files changed, 9 insertions, 165 deletions

diff --git a/src/nvim/diff.c b/src/nvim/diff.c
index b859871f98..c125b726c4 100644
--- a/src/nvim/diff.c
+++ b/src/nvim/diff.c
@@ -50,9 +50,6 @@ static int diff_a_works = MAYBE;
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "diff.c.generated.h"
 #endif
-#ifndef USE_CR
-# define tag_fgets vim_fgets
-#endif  // ifndef USE_CR
 
 /// Called when deleting or unloading a buffer: No longer make a diff with it.
 ///
@@ -702,7 +699,7 @@ void ex_diffupdate(exarg_T *eap)
 
           for (;;) {
             // There must be a line that contains "1c1".
-            if (tag_fgets(linebuf, LBUFLEN, fd)) {
+            if (vim_fgets(linebuf, LBUFLEN, fd)) {
               break;
             }
 
@@ -1209,7 +1206,7 @@ static void diff_read(int idx_orig, int idx_new, char_u *fname)
   }
 
   for (;;) {
-    if (tag_fgets(linebuf, LBUFLEN, fd)) {
+    if (vim_fgets(linebuf, LBUFLEN, fd)) {
       // end of file
       break;
     }
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index 7408a7926a..31070c1118 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -14086,18 +14086,7 @@ static void f_system(typval_T *argvars, typval_T *rettv)
   res = get_cmd_output(get_tv_string(&argvars[0]), infile,
       kShellOptSilent | kShellOptCooked);
 
-#ifdef USE_CR
-  /* translate <CR> into <NL> */
-  if (res != NULL) {
-    char_u  *s;
-
-    for (s = res; *s; ++s) {
-      if (*s == CAR)
-        *s = NL;
-    }
-  }
-#else
-# ifdef USE_CRNL
+#ifdef USE_CRNL
   /* translate <CR><NL> into <NL> */
   if (res != NULL) {
     char_u  *s, *d;
@@ -14110,7 +14099,6 @@ static void f_system(typval_T *argvars, typval_T *rettv)
     }
     *d = NUL;
   }
-# endif
 #endif
 
 done:
diff --git a/src/nvim/ex_cmds2.c b/src/nvim/ex_cmds2.c
index 02d8f6f9af..b2b37d9c01 100644
--- a/src/nvim/ex_cmds2.c
+++ b/src/nvim/ex_cmds2.c
@@ -94,7 +94,7 @@ struct source_cookie {
   FILE        *fp;              /* opened file for sourcing */
   char_u      *nextline;        /* if not NULL: line that was read ahead */
   int finished;                 /* ":finish" used */
-#if defined(USE_CRNL) || defined(USE_CR)
+#if defined(USE_CRNL)
   int fileformat;               /* EOL_UNKNOWN, EOL_UNIX or EOL_DOS */
   int error;                    /* TRUE if LF found after CR-LF */
 #endif
@@ -2520,15 +2520,6 @@ do_source (
   cookie.error = FALSE;
 #endif
 
-#ifdef USE_CR
-  /* If no automatic file format: Set default to CR. */
-  if (*p_ffs == NUL)
-    cookie.fileformat = EOL_MAC;
-  else
-    cookie.fileformat = EOL_UNKNOWN;
-  cookie.error = FALSE;
-#endif
-
   cookie.nextline = NULL;
   cookie.finished = FALSE;
 
@@ -2755,41 +2746,6 @@ void free_scriptnames(void)
 # endif
 
 
-#if defined(USE_CR) || defined(PROTO)
-/*
- * Version of fgets() which also works for lines ending in a <CR> only
- * (Macintosh format).
- * For older versions of the Metrowerks library.
- * At least CodeWarrior 9 needed this code.
- */
-char *fgets_cr(char *s, int n, FILE *stream)
-{
-  int c = 0;
-  int char_read = 0;
-
-  while (!feof(stream) && c != '\r' && c != '\n' && char_read < n - 1) {
-    c = fgetc(stream);
-    s[char_read++] = c;
-    /* If the file is in DOS format, we need to skip a NL after a CR.  I
-     * thought it was the other way around, but this appears to work... */
-    if (c == '\n') {
-      c = fgetc(stream);
-      if (c != '\r')
-        ungetc(c, stream);
-    }
-  }
-
-  s[char_read] = 0;
-  if (char_read == 0)
-    return NULL;
-
-  if (feof(stream) && char_read == 1)
-    return NULL;
-
-  return s;
-}
-#endif
-
 /*
  * Get one full line from a sourced file.
  * Called by do_cmdline() when it's called from do_source().
@@ -2897,9 +2853,6 @@ static char_u *get_one_sourceline(struct source_cookie *sp)
 #ifdef USE_CRNL
   int has_cr;                           /* CR-LF found */
 #endif
-#ifdef USE_CR
-  char_u              *scan;
-#endif
   int have_read = FALSE;
 
   /* use a growarray to store the sourced line */
@@ -2914,13 +2867,6 @@ static char_u *get_one_sourceline(struct source_cookie *sp)
     ga_grow(&ga, 120);
     buf = (char_u *)ga.ga_data;
 
-#ifdef USE_CR
-    if (sp->fileformat == EOL_MAC) {
-      if (fgets_cr((char *)buf + ga.ga_len, ga.ga_maxlen - ga.ga_len,
-              sp->fp) == NULL)
-        break;
-    } else
-#endif
     if (fgets((char *)buf + ga.ga_len, ga.ga_maxlen - ga.ga_len,
             sp->fp) == NULL)
       break;
@@ -2936,30 +2882,6 @@ static char_u *get_one_sourceline(struct source_cookie *sp)
     }
 #endif
 
-#ifdef USE_CR
-    /* If the read doesn't stop on a new line, and there's
-     * some CR then we assume a Mac format */
-    if (sp->fileformat == EOL_UNKNOWN) {
-      if (buf[len - 1] != '\n' && vim_strchr(buf, '\r') != NULL)
-        sp->fileformat = EOL_MAC;
-      else
-        sp->fileformat = EOL_UNIX;
-    }
-
-    if (sp->fileformat == EOL_MAC) {
-      scan = vim_strchr(buf, '\r');
-
-      if (scan != NULL) {
-        *scan = '\n';
-        if (*(scan + 1) != 0) {
-          *(scan + 1) = 0;
-          fseek(sp->fp, (long)(scan - buf - len + 1), SEEK_CUR);
-        }
-      }
-      len = STRLEN(buf);
-    }
-#endif
-
     have_read = TRUE;
     ga.ga_len = len;
 
diff --git a/src/nvim/fileio.c b/src/nvim/fileio.c
index d4faafeed6..b3b336073b 100644
--- a/src/nvim/fileio.c
+++ b/src/nvim/fileio.c
@@ -3844,13 +3844,11 @@ static int msg_add_fileformat(int eol_type)
     return TRUE;
   }
 #endif
-#ifndef USE_CR
   if (eol_type == EOL_MAC) {
     STRCAT(IObuff, shortmess(SHM_TEXT) ? _("[mac]") : _("[mac format]"));
     return TRUE;
   }
-#endif
-#if defined(USE_CRNL) || defined(USE_CR)
+#ifdef USE_CRNL
   if (eol_type == EOL_UNIX) {
     STRCAT(IObuff, shortmess(SHM_TEXT) ? _("[unix]") : _("[unix format]"));
     return TRUE;
@@ -4506,64 +4504,19 @@ int vim_fgets(char_u *buf, int size, FILE *fp)
   char tbuf[FGETS_SIZE];
 
   buf[size - 2] = NUL;
-#ifdef USE_CR
-  eof = fgets_cr((char *)buf, size, fp);
-#else
   eof = fgets((char *)buf, size, fp);
-#endif
   if (buf[size - 2] != NUL && buf[size - 2] != '\n') {
     buf[size - 1] = NUL;            /* Truncate the line */
 
     /* Now throw away the rest of the line: */
     do {
       tbuf[FGETS_SIZE - 2] = NUL;
-#ifdef USE_CR
-      ignoredp = fgets_cr((char *)tbuf, FGETS_SIZE, fp);
-#else
       ignoredp = fgets((char *)tbuf, FGETS_SIZE, fp);
-#endif
     } while (tbuf[FGETS_SIZE - 2] != NUL && tbuf[FGETS_SIZE - 2] != '\n');
   }
   return eof == NULL;
 }
 
-#if defined(USE_CR) || defined(PROTO)
-/*
- * Like vim_fgets(), but accept any line terminator: CR, CR-LF or LF.
- * Returns TRUE for end-of-file.
- * Only used for the Mac, because it's much slower than vim_fgets().
- */
-int tag_fgets(char_u *buf, int size, FILE *fp)
-{
-  int i = 0;
-  int c;
-  int eof = FALSE;
-
-  for (;; ) {
-    c = fgetc(fp);
-    if (c == EOF) {
-      eof = TRUE;
-      break;
-    }
-    if (c == '\r') {
-      /* Always store a NL for end-of-line. */
-      if (i < size - 1)
-        buf[i++] = '\n';
-      c = fgetc(fp);
-      if (c != '\n')            /* Macintosh format: single CR. */
-        ungetc(c, fp);
-      break;
-    }
-    if (i < size - 1)
-      buf[i++] = c;
-    if (c == '\n')
-      break;
-  }
-  buf[i] = NUL;
-  return eof;
-}
-#endif
-
 /*
  * os_rename() only works if both files are on the same file system, this
  * function will (attempts to?) copy the file across if rename fails -- webb
diff --git a/src/nvim/message.c b/src/nvim/message.c
index 42162b9315..41a2345171 100644
--- a/src/nvim/message.c
+++ b/src/nvim/message.c
@@ -1992,9 +1992,6 @@ static void msg_puts_printf(char_u *str, int maxlen)
       p = &buf[0];
       if (*s == '\n' && !info_message)
         *p++ = '\r';
-#if defined(USE_CR) && !defined(MACOS_X_UNIX)
-      else
-#endif
       *p++ = *s;
       *p = '\0';
       if (info_message)         /* informative message, not an error */
diff --git a/src/nvim/option_defs.h b/src/nvim/option_defs.h
index 741ddc750c..55cc892cb0 100644
--- a/src/nvim/option_defs.h
+++ b/src/nvim/option_defs.h
@@ -39,15 +39,9 @@
 # define DFLT_FFS_VIM   "dos,unix"
 # define DFLT_FFS_VI    "dos,unix"      /* also autodetect in compatible mode */
 #else
-# ifdef USE_CR
-#  define DFLT_FF       "mac"
-#  define DFLT_FFS_VIM  "mac,unix,dos"
-#  define DFLT_FFS_VI   "mac,unix,dos"
-# else
 #  define DFLT_FF       "unix"
 #  define DFLT_FFS_VIM  "unix,dos"
 #   define DFLT_FFS_VI  ""
-# endif
 #endif
 
 
diff --git a/src/nvim/tag.c b/src/nvim/tag.c
index 4be18b7b34..dad4dd51ce 100644
--- a/src/nvim/tag.c
+++ b/src/nvim/tag.c
@@ -987,13 +987,6 @@ void do_tags(exarg_T *eap)
     MSG_PUTS("\n>");
 }
 
-/* When not using a CR for line separator, use vim_fgets() to read tag lines.
- * For the Mac use tag_fgets().  It can handle any line separator, but is much
- * slower than vim_fgets().
- */
-#ifndef USE_CR
-# define tag_fgets vim_fgets
-#endif
 
 
 /*
@@ -1355,7 +1348,7 @@ find_tags (
 #else
           fseek(fp, (long)search_info.curr_offset, SEEK_SET);
 #endif
-          eof = tag_fgets(lbuf, LSIZE, fp);
+          eof = vim_fgets(lbuf, LSIZE, fp);
           if (!eof && search_info.curr_offset != 0) {
             /* The explicit cast is to work around a bug in gcc 3.4.2
              * (repeated below). */
@@ -1369,12 +1362,12 @@ find_tags (
 #endif
               search_info.curr_offset = search_info.low_offset;
             }
-            eof = tag_fgets(lbuf, LSIZE, fp);
+            eof = vim_fgets(lbuf, LSIZE, fp);
           }
           /* skip empty and blank lines */
           while (!eof && vim_isblankline(lbuf)) {
             search_info.curr_offset = ftell(fp);
-            eof = tag_fgets(lbuf, LSIZE, fp);
+            eof = vim_fgets(lbuf, LSIZE, fp);
           }
           if (eof) {
             /* Hit end of file.  Skip backwards. */
@@ -1393,7 +1386,7 @@ find_tags (
             if (use_cscope)
               eof = cs_fgets(lbuf, LSIZE);
             else
-              eof = tag_fgets(lbuf, LSIZE, fp);
+              eof = vim_fgets(lbuf, LSIZE, fp);
           } while (!eof && vim_isblankline(lbuf));
 
           if (eof) {