Merge from emacs--devo--0
[bpt/emacs.git] / src / callproc.c
index 90e5b11..c5e747f 100644 (file)
@@ -75,7 +75,7 @@ extern int errno;
 #include "lisp.h"
 #include "commands.h"
 #include "buffer.h"
-#include "charset.h"
+#include "character.h"
 #include "ccl.h"
 #include "coding.h"
 #include "composite.h"
@@ -273,6 +273,7 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
     if (nargs >= 5)
       {
        int must_encode = 0;
+       Lisp_Object coding_attrs;
 
        for (i = 4; i < nargs; i++)
          CHECK_STRING (args[i]);
@@ -298,11 +299,15 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
            else
              val = Qnil;
          }
+       val = coding_inherit_eol_type (val, Qnil);
        setup_coding_system (Fcheck_coding_system (val), &argument_coding);
-       if (argument_coding.common_flags & CODING_ASCII_INCOMPATIBLE_MASK)
-         setup_coding_system (Qraw_text, &argument_coding);
-       if (argument_coding.eol_type == CODING_EOL_UNDECIDED)
-         argument_coding.eol_type = system_eol_type;
+       coding_attrs = CODING_ID_ATTRS (argument_coding.id);
+       if (NILP (CODING_ATTR_ASCII_COMPAT (coding_attrs)))
+         {
+           /* We should not use an ASCII incompatible coding system.  */
+           val = raw_text_coding_system (val);
+           setup_coding_system (val, &argument_coding);
+         }
       }
   }
 
@@ -425,12 +430,8 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
        {
          argument_coding.src_multibyte = STRING_MULTIBYTE (args[i]);
          if (CODING_REQUIRE_ENCODING (&argument_coding))
-           {
-             /* We must encode this argument.  */
-             args[i] = encode_coding_string (args[i], &argument_coding, 1);
-             if (argument_coding.type == coding_type_ccl)
-               setup_ccl_program (&(argument_coding.spec.ccl.encoder), Qnil);
-           }
+           /* We must encode this argument.  */
+           args[i] = encode_coding_string (&argument_coding, args[i], 1);
          new_argv[i - 3] = SDATA (args[i]);
        }
       UNGCPRO;
@@ -742,19 +743,15 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
          else
            val = Qnil;
        }
-      setup_coding_system (Fcheck_coding_system (val), &process_coding);
+      Fcheck_coding_system (val);
       /* In unibyte mode, character code conversion should not take
         place but EOL conversion should.  So, setup raw-text or one
         of the subsidiary according to the information just setup.  */
       if (NILP (current_buffer->enable_multibyte_characters)
          && !NILP (val))
-       setup_raw_text_coding_system (&process_coding);
+       val = raw_text_coding_system (val);
+      setup_coding_system (val, &process_coding);
     }
-  process_coding.src_multibyte = 0;
-  process_coding.dst_multibyte
-    = (BUFFERP (buffer)
-       ? ! NILP (XBUFFER (buffer)->enable_multibyte_characters)
-       : ! NILP (current_buffer->enable_multibyte_characters));
 
   immediate_quit = 1;
   QUIT;
@@ -766,12 +763,8 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
     int carryover = 0;
     int display_on_the_fly = display_p;
     struct coding_system saved_coding;
-    int pt_orig = PT, pt_byte_orig = PT_BYTE;
-    int inserted;
 
     saved_coding = process_coding;
-    if (process_coding.composing != COMPOSITION_DISABLED)
-      coding_allocate_composition_data (&process_coding, PT);
     while (1)
       {
        /* Repeatedly read until we've filled as much as possible
@@ -804,133 +797,49 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
 
        if (!NILP (buffer))
          {
-           if (! CODING_MAY_REQUIRE_DECODING (&process_coding))
+           if (NILP (current_buffer->enable_multibyte_characters)
+               && ! CODING_MAY_REQUIRE_DECODING (&process_coding))
              insert_1_both (buf, nread, nread, 0, 1, 0);
            else
              {                 /* We have to decode the input.  */
-               int size;
-               char *decoding_buf;
-
-             repeat_decoding:
-               size = decoding_buffer_size (&process_coding, nread);
-               decoding_buf = (char *) xmalloc (size);
-
-               /* We can't use the macro CODING_REQUIRE_DETECTION
-                  because it always returns nonzero if the coding
-                  system requires EOL detection.  Here, we have to
-                  check only whether or not the coding system
-                  requires text-encoding detection.  */
-               if (process_coding.type == coding_type_undecided)
-                 {
-                   detect_coding (&process_coding, buf, nread);
-                   if (process_coding.composing != COMPOSITION_DISABLED)
-                     /* We have not yet allocated the composition
-                        data because the coding type was undecided.  */
-                     coding_allocate_composition_data (&process_coding, PT);
-                 }
-               if (process_coding.cmp_data)
-                 process_coding.cmp_data->char_offset = PT;
-
-               decode_coding (&process_coding, buf, decoding_buf,
-                              nread, size);
+               Lisp_Object curbuf;
 
+               XSETBUFFER (curbuf, current_buffer);
+               decode_coding_c_string (&process_coding, buf, nread,
+                                       curbuf);
                if (display_on_the_fly
-                   && saved_coding.type == coding_type_undecided
-                   && process_coding.type != coding_type_undecided)
+                   && CODING_REQUIRE_DETECTION (&saved_coding)
+                   && ! CODING_REQUIRE_DETECTION (&process_coding))
                  {
                    /* We have detected some coding system.  But,
                       there's a possibility that the detection was
-                      done by insufficient data.  So, we try the code
-                      detection again with more data.  */
-                   xfree (decoding_buf);
+                      done by insufficient data.  So, we give up
+                      displaying on the fly.  */
+                   if (process_coding.produced > 0)
+                     del_range_2 (process_coding.dst_pos,
+                                  process_coding.dst_pos_byte,
+                                  process_coding.dst_pos
+                                  + process_coding.produced_char,
+                                  process_coding.dst_pos_byte
+                                  + process_coding.produced, 0);
                    display_on_the_fly = 0;
                    process_coding = saved_coding;
                    carryover = nread;
                    /* This is to make the above condition always
                       fails in the future.  */
-                   saved_coding.type = coding_type_no_conversion;
+                   saved_coding.common_flags
+                     &= ~CODING_REQUIRE_DETECTION_MASK;
                    continue;
                  }
 
-               if (process_coding.produced > 0)
-                 insert_1_both (decoding_buf, process_coding.produced_char,
-                                process_coding.produced, 0, 1, 0);
-               xfree (decoding_buf);
-
-               if (process_coding.result == CODING_FINISH_INCONSISTENT_EOL)
-                 {
-                   Lisp_Object eol_type, coding;
-
-                   if (process_coding.eol_type == CODING_EOL_CR)
-                     {
-                       /* CRs have been replaced with LFs.  Undo
-                          that in the text inserted above.  */
-                       unsigned char *p;
-
-                       move_gap_both (PT, PT_BYTE);
-
-                       p = BYTE_POS_ADDR (pt_byte_orig);
-                       for (; p < GPT_ADDR; ++p)
-                         if (*p == '\n')
-                           *p = '\r';
-                     }
-                   else if (process_coding.eol_type == CODING_EOL_CRLF)
-                     {
-                       /* CR LFs have been replaced with LFs.  Undo
-                          that by inserting CRs in front of LFs in
-                          the text inserted above.  */
-                       EMACS_INT bytepos, old_pt, old_pt_byte, nCR;
-
-                       old_pt = PT;
-                       old_pt_byte = PT_BYTE;
-                       nCR = 0;
-
-                       for (bytepos = PT_BYTE - 1;
-                            bytepos >= pt_byte_orig;
-                            --bytepos)
-                         if (FETCH_BYTE (bytepos) == '\n')
-                           {
-                             EMACS_INT charpos = BYTE_TO_CHAR (bytepos);
-                             TEMP_SET_PT_BOTH (charpos, bytepos);
-                             insert_1_both ("\r", 1, 1, 0, 1, 0);
-                             ++nCR;
-                           }
-
-                       TEMP_SET_PT_BOTH (old_pt + nCR, old_pt_byte + nCR);
-                     }
-
-                   /* Set the coding system symbol to that for
-                      Unix-like EOL.  */
-                   eol_type = Fget (saved_coding.symbol, Qeol_type);
-                   if (VECTORP (eol_type)
-                       && ASIZE (eol_type) == 3
-                       && SYMBOLP (AREF (eol_type, CODING_EOL_LF)))
-                     coding = AREF (eol_type, CODING_EOL_LF);
-                   else
-                     coding = saved_coding.symbol;
-
-                   process_coding.symbol = coding;
-                   process_coding.eol_type = CODING_EOL_LF;
-                   process_coding.mode
-                     &= ~CODING_MODE_INHIBIT_INCONSISTENT_EOL;
-                 }
-
-               nread -= process_coding.consumed;
-               carryover = nread;
+               TEMP_SET_PT_BOTH (PT + process_coding.produced_char,
+                                 PT_BYTE + process_coding.produced);
+               carryover = process_coding.carryover_bytes;
                if (carryover > 0)
                  /* As CARRYOVER should not be that large, we had
                     better avoid overhead of bcopy.  */
-                 BCOPY_SHORT (buf + process_coding.consumed, buf,
-                              carryover);
-               if (process_coding.result == CODING_FINISH_INSUFFICIENT_CMP)
-                 {
-                   /* The decoding ended because of insufficient data
-                      area to record information about composition.
-                      We must try decoding with additional data area
-                      before reading more output for the process.  */
-                   coding_allocate_composition_data (&process_coding, PT);
-                   goto repeat_decoding;
-                 }
+                 BCOPY_SHORT (process_coding.carryover, buf,
+                              process_coding.carryover_bytes);
              }
          }
 
@@ -961,33 +870,12 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
       }
   give_up: ;
 
-    if (!NILP (buffer)
-       && process_coding.cmp_data)
-      {
-       coding_restore_composition (&process_coding, Fcurrent_buffer ());
-       coding_free_composition_data (&process_coding);
-      }
-
-    {
-      int post_read_count = SPECPDL_INDEX ();
-
-      record_unwind_protect (save_excursion_restore, save_excursion_save ());
-      inserted = PT - pt_orig;
-      TEMP_SET_PT_BOTH (pt_orig, pt_byte_orig);
-      if (SYMBOLP (process_coding.post_read_conversion)
-         && !NILP (Ffboundp (process_coding.post_read_conversion)))
-       call1 (process_coding.post_read_conversion, make_number (inserted));
-
-      Vlast_coding_system_used = process_coding.symbol;
-
-      /* If the caller required, let the buffer inherit the
-        coding-system used to decode the process output.  */
-      if (inherit_process_coding_system)
-       call1 (intern ("after-insert-file-set-buffer-file-coding-system"),
-              make_number (total_read));
-
-      unbind_to (post_read_count, Qnil);
-    }
+    Vlast_coding_system_used = CODING_ID_NAME (process_coding.id);
+    /* If the caller required, let the buffer inherit the
+       coding-system used to decode the process output.  */
+    if (inherit_process_coding_system)
+      call1 (intern ("after-insert-file-set-buffer-file-coding-system"),
+              make_number (total_read));
   }
 
   /* Wait for it to terminate, unless it already has.  */