}
}
\f
-/* Encode SRC_LEN glyphs starting at SRC to terminal output codes and
- store them at DST. Do not write more than DST_LEN bytes. That may
- require stopping before all SRC_LEN input glyphs have been
- converted.
+/* Buffer to store the source and result of code conversion for terminal. */
+static unsigned char *encode_terminal_buf;
+/* Allocated size of the above buffer. */
+static int encode_terminal_bufsize;
- We store the number of glyphs actually converted in *CONSUMED. The
- return value is the number of bytes store in DST. */
+/* Encode SRC_LEN glyphs starting at SRC to terminal output codes.
+ Set CODING->produced to the byte-length of the resulting byte
+ sequence, and return a pointer to that byte sequence. */
-int
-encode_terminal_code (src, dst, src_len, dst_len, consumed)
+static unsigned char *
+encode_terminal_code (src, src_len, coding)
struct glyph *src;
int src_len;
- unsigned char *dst;
- int dst_len, *consumed;
+ struct coding_system *coding;
{
struct glyph *src_start = src, *src_end = src + src_len;
- unsigned char *dst_start = dst, *dst_end = dst + dst_len;
register GLYPH g;
- unsigned char workbuf[MAX_MULTIBYTE_LENGTH];
- const unsigned char *buf;
- int len;
+ unsigned char *buf;
+ int nchars, nbytes, required;
register int tlen = GLYPH_TABLE_LENGTH;
register Lisp_Object *tbase = GLYPH_TABLE_BASE;
- int result;
- struct coding_system *coding;
- /* If terminal_coding does any conversion, use it, otherwise use
- safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here
- because it always return 1 if the member src_multibyte is 1. */
- coding = (terminal_coding.common_flags & CODING_REQUIRE_ENCODING_MASK
- ? &terminal_coding
- : &safe_terminal_coding);
+ /* Allocate sufficient size of buffer to store all characters in
+ multibyte-form. But, it may be enlarged on demand if
+ Vglyph_table contains a string. */
+ required = MAX_MULTIBYTE_LENGTH * src_len;
+ if (encode_terminal_bufsize < required)
+ {
+ encode_terminal_bufsize = required;
+ if (encode_terminal_bufsize == 0)
+ encode_terminal_buf = xmalloc (required);
+ else
+ encode_terminal_buf = xrealloc (encode_terminal_buf, required);
+ }
+ buf = encode_terminal_buf;
+ nchars = 0;
while (src < src_end)
{
/* We must skip glyphs to be padded for a wide character. */
if (g < 0 || g >= tlen)
{
/* This glyph doesn't has an entry in Vglyph_table. */
- if (! CHAR_VALID_P (src->u.ch, 0))
- {
- len = 1;
- buf = " ";
- coding->src_multibyte = 0;
- }
+ if (CHAR_VALID_P (src->u.ch, 0))
+ buf += CHAR_STRING (src->u.ch, buf);
else
- {
- len = CHAR_STRING (src->u.ch, workbuf);
- buf = workbuf;
- coding->src_multibyte = 1;
- }
+ *buf++ = SPACEGLYPH;
+ nchars++;
}
else
{
if (GLYPH_SIMPLE_P (tbase, tlen, g))
{
- /* We set the multi-byte form of a character in G
- (that should be an ASCII character) at
- WORKBUF. */
- workbuf[0] = FAST_GLYPH_CHAR (g);
- len = 1;
- buf = workbuf;
- coding->src_multibyte = 0;
+ int c = FAST_GLYPH_CHAR (g);
+
+ if (CHAR_VALID_P (c, 0))
+ buf += CHAR_STRING (c, buf);
+ else
+ *buf++ = SPACEGLYPH;
+ nchars++;
}
else
{
/* We have a string in Vglyph_table. */
- len = GLYPH_LENGTH (tbase, g);
- buf = GLYPH_STRING (tbase, g);
- coding->src_multibyte = STRING_MULTIBYTE (tbase[g]);
+ Lisp_Object string;
+
+ string = tbase[g];
+ if (! STRING_MULTIBYTE (string))
+ string = string_to_multibyte (string);
+ nbytes = buf - encode_terminal_buf;
+ if (nbytes + SBYTES (string) < encode_terminal_bufsize)
+ {
+ encode_terminal_bufsize = nbytes + SBYTES (string);
+ encode_terminal_buf = xrealloc (encode_terminal_buf,
+ encode_terminal_bufsize);
+ buf = encode_terminal_buf + nbytes;
+ }
+ bcopy (SDATA (string), buf, SBYTES (string));
+ buf += SBYTES (string);
+ nchars += SCHARS (string);
}
}
-
- result = encode_coding (coding, buf, dst, len, dst_end - dst);
- len -= coding->consumed;
- dst += coding->produced;
- if (result == CODING_FINISH_INSUFFICIENT_DST
- || (result == CODING_FINISH_INSUFFICIENT_SRC
- && len > dst_end - dst))
- /* The remaining output buffer is too short. We must
- break the loop here without increasing SRC so that the
- next call of this function starts from the same glyph. */
- break;
-
- if (len > 0)
- {
- /* This is the case that a code of the range 0200..0237
- exists in buf. We must just write out such a code. */
- buf += coding->consumed;
- while (len--)
- *dst++ = *buf++;
- }
}
src++;
}
- *consumed = src - src_start;
- return (dst - dst_start);
-}
+ nbytes = buf - encode_terminal_buf;
+ coding->src_multibyte = 1;
+ coding->dst_multibyte = 0;
+ if (SYMBOLP (coding->pre_write_conversion)
+ && ! NILP (Ffboundp (coding->pre_write_conversion)))
+ {
+ run_pre_write_conversin_on_c_str (&encode_terminal_buf,
+ &encode_terminal_bufsize,
+ nchars, nbytes, coding);
+ nchars = coding->produced_char;
+ nbytes = coding->produced;
+ }
+ required = nbytes + encoding_buffer_size (coding, nbytes);
+ if (encode_terminal_bufsize < required)
+ {
+ encode_terminal_bufsize = required;
+ encode_terminal_buf = xrealloc (encode_terminal_buf, required);
+ }
+ encode_coding (coding, encode_terminal_buf, encode_terminal_buf + nbytes,
+ nbytes, encode_terminal_bufsize - nbytes);
+ return encode_terminal_buf + nbytes;
+}
void
write_glyphs (string, len)
register struct glyph *string;
register int len;
{
- int produced, consumed;
struct frame *sf = XFRAME (selected_frame);
struct frame *f = updating_frame ? updating_frame : sf;
- unsigned char conversion_buffer[1024];
- int conversion_buffer_size = sizeof conversion_buffer;
+ unsigned char *conversion_buffer;
+ struct coding_system *coding;
if (write_glyphs_hook
&& ! FRAME_TERMCAP_P (f))
cmplus (len);
+ /* If terminal_coding does any conversion, use it, otherwise use
+ safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here
+ because it always return 1 if the member src_multibyte is 1. */
+ coding = (terminal_coding.common_flags & CODING_REQUIRE_ENCODING_MASK
+ ? &terminal_coding : &safe_terminal_coding);
/* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at
the tail. */
- terminal_coding.mode &= ~CODING_MODE_LAST_BLOCK;
+ coding->mode &= ~CODING_MODE_LAST_BLOCK;
while (len > 0)
{
highlight_if_desired ();
turn_on_face (f, face_id);
- while (n > 0)
+ if (n == len)
+ /* This is the last run. */
+ coding->mode |= CODING_MODE_LAST_BLOCK;
+ conversion_buffer = encode_terminal_code (string, n, coding);
+ if (coding->produced > 0)
{
- /* We use a fixed size (1024 bytes) of conversion buffer.
- Usually it is sufficient, but if not, we just repeat the
- loop. */
- produced = encode_terminal_code (string, conversion_buffer,
- n, conversion_buffer_size,
- &consumed);
- if (produced > 0)
- {
- fwrite (conversion_buffer, 1, produced, stdout);
- if (ferror (stdout))
- clearerr (stdout);
- if (termscript)
- fwrite (conversion_buffer, 1, produced, termscript);
- }
- len -= consumed;
- n -= consumed;
- string += consumed;
+ fwrite (conversion_buffer, 1, coding->produced, stdout);
+ if (ferror (stdout))
+ clearerr (stdout);
+ if (termscript)
+ fwrite (conversion_buffer, 1, coding->produced, termscript);
}
+ len -= n;
+ string += n;
/* Turn appearance modes off. */
turn_off_face (f, face_id);
turn_off_highlight ();
}
- /* We may have to output some codes to terminate the writing. */
- if (CODING_REQUIRE_FLUSHING (&terminal_coding))
- {
- terminal_coding.mode |= CODING_MODE_LAST_BLOCK;
- encode_coding (&terminal_coding, "", conversion_buffer,
- 0, conversion_buffer_size);
- if (terminal_coding.produced > 0)
- {
- fwrite (conversion_buffer, 1, terminal_coding.produced, stdout);
- if (ferror (stdout))
- clearerr (stdout);
- if (termscript)
- fwrite (conversion_buffer, 1, terminal_coding.produced,
- termscript);
- }
- }
-
cmcheckmagic ();
}
char *buf;
struct glyph *glyph = NULL;
struct frame *f, *sf;
+ unsigned char *conversion_buffer;
+ unsigned char space[1];
+ struct coding_system *coding;
if (len <= 0)
return;
turn_on_insert ();
cmplus (len);
- /* The bit CODING_MODE_LAST_BLOCK should be set to 1 only at the tail. */
- terminal_coding.mode &= ~CODING_MODE_LAST_BLOCK;
+
+ if (! start)
+ space[0] = SPACEGLYPH;
+
+ /* If terminal_coding does any conversion, use it, otherwise use
+ safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here
+ because it always return 1 if the member src_multibyte is 1. */
+ coding = (terminal_coding.common_flags & CODING_REQUIRE_ENCODING_MASK
+ ? &terminal_coding : &safe_terminal_coding);
+ /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at
+ the tail. */
+ coding->mode &= ~CODING_MODE_LAST_BLOCK;
+
while (len-- > 0)
{
- int produced, consumed;
- unsigned char conversion_buffer[1024];
- int conversion_buffer_size = sizeof conversion_buffer;
-
OUTPUT1_IF (TS_ins_char);
if (!start)
{
- conversion_buffer[0] = SPACEGLYPH;
- produced = 1;
+ conversion_buffer = space;
+ coding->produced = 1;
}
else
{
if (len <= 0)
/* This is the last glyph. */
- terminal_coding.mode |= CODING_MODE_LAST_BLOCK;
+ coding->mode |= CODING_MODE_LAST_BLOCK;
- /* The size of conversion buffer (1024 bytes) is surely
- sufficient for just one glyph. */
- produced = encode_terminal_code (glyph, conversion_buffer, 1,
- conversion_buffer_size, &consumed);
+ conversion_buffer = encode_terminal_code (glyph, 1, coding);
}
- if (produced > 0)
+ if (coding->produced > 0)
{
- fwrite (conversion_buffer, 1, produced, stdout);
+ fwrite (conversion_buffer, 1, coding->produced, stdout);
if (ferror (stdout))
clearerr (stdout);
if (termscript)
- fwrite (conversion_buffer, 1, produced, termscript);
+ fwrite (conversion_buffer, 1, coding->produced, termscript);
}
OUTPUT1_IF (TS_pad_inserted_char);
int status;
struct frame *sf = XFRAME (selected_frame);
+ encode_terminal_bufsize = 0;
+
#ifdef WINDOWSNT
initialize_w32_display ();
projects / emacs.git / commitdiff