#ifndef INCLUDED_buffer_h_
#define INCLUDED_buffer_h_
-#ifdef MULE
-#include "mule-charset.h"
-#endif
+#include "character.h"
+#include "multibyte.h"
+
+#include "casetab.h"
+#include "chartab.h"
/************************************************************************/
/* */
This information is text-only so it goes here. */
Bufpos mule_bufmin, mule_bufmax;
Bytind mule_bytmin, mule_bytmax;
+#ifdef UTF2000
+ int mule_size;
+#else
int mule_shifter, mule_three_p;
+#endif
/* And we also cache 16 positions for fairly fast access near those
positions. */
int face_change; /* This is set when a change in how the text should
be displayed (e.g., font, color) is made. */
+ /* Whether buffer specific face is specified. */
+ int buffer_local_face_property;
+
/* change data indicating what portion of the text has changed
since the last time this was reset. Used by redisplay.
Logically we should keep this with the text structure, but
denoted with the word "unsafe" in their name and are generally
meant to be called only by other macros that have already
stored the calling values in temporary variables.
-
-
- Use the following functions/macros on contiguous strings of data.
- If the text you're operating on is known to come from a buffer, use
- the buffer-level functions below -- they know about the gap and may
- be more efficient.
-
-
- (A) For working with charptr's (pointers to internally-formatted text):
- -----------------------------------------------------------------------
-
- VALID_CHARPTR_P (ptr):
- Given a charptr, does it point to the beginning of a character?
-
- ASSERT_VALID_CHARPTR (ptr):
- If error-checking is enabled, assert that the given charptr
- points to the beginning of a character. Otherwise, do nothing.
-
- INC_CHARPTR (ptr):
- Given a charptr (assumed to point at the beginning of a character),
- modify that pointer so it points to the beginning of the next
- character.
-
- DEC_CHARPTR (ptr):
- Given a charptr (assumed to point at the beginning of a
- character or at the very end of the text), modify that pointer
- so it points to the beginning of the previous character.
-
- VALIDATE_CHARPTR_BACKWARD (ptr):
- Make sure that PTR is pointing to the beginning of a character.
- If not, back up until this is the case. Note that there are not
- too many places where it is legitimate to do this sort of thing.
- It's an error if you're passed an "invalid" char * pointer.
- NOTE: PTR *must* be pointing to a valid part of the string (i.e.
- not the very end, unless the string is zero-terminated or
- something) in order for this function to not cause crashes.
-
- VALIDATE_CHARPTR_FORWARD (ptr):
- Make sure that PTR is pointing to the beginning of a character.
- If not, move forward until this is the case. Note that there
- are not too many places where it is legitimate to do this sort
- of thing. It's an error if you're passed an "invalid" char *
- pointer.
-
-
- (B) For working with the length (in bytes and characters) of a
- section of internally-formatted text:
- --------------------------------------------------------------
-
- bytecount_to_charcount (ptr, nbi):
- Given a pointer to a text string and a length in bytes,
- return the equivalent length in characters.
-
- charcount_to_bytecount (ptr, nch):
- Given a pointer to a text string and a length in characters,
- return the equivalent length in bytes.
-
- charptr_n_addr (ptr, n):
- Return a pointer to the beginning of the character offset N
- (in characters) from PTR.
-
-
- (C) For retrieving or changing the character pointed to by a charptr:
- ---------------------------------------------------------------------
-
- charptr_emchar (ptr):
- Retrieve the character pointed to by PTR as an Emchar.
-
- charptr_emchar_n (ptr, n):
- Retrieve the character at offset N (in characters) from PTR,
- as an Emchar.
-
- set_charptr_emchar (ptr, ch):
- Store the character CH (an Emchar) as internally-formatted
- text starting at PTR. Return the number of bytes stored.
-
- charptr_copy_char (ptr, ptr2):
- Retrieve the character pointed to by PTR and store it as
- internally-formatted text in PTR2.
-
-
- (D) For working with Emchars:
- -----------------------------
-
- [Note that there are other functions/macros for working with Emchars
- in mule-charset.h, for retrieving the charset of an Emchar
- and such. These are only valid when MULE is defined.]
-
- valid_char_p (ch):
- Return whether the given Emchar is valid.
-
- CHARP (ch):
- Return whether the given Lisp_Object is a character.
-
- CHECK_CHAR_COERCE_INT (ch):
- Signal an error if CH is not a valid character or integer Lisp_Object.
- If CH is an integer Lisp_Object, convert it to a character Lisp_Object,
- but merely by repackaging, without performing tests for char validity.
-
- MAX_EMCHAR_LEN:
- Maximum number of buffer bytes per Emacs character.
-
*/
-
-/* ---------------------------------------------------------------------- */
-/* (A) For working with charptr's (pointers to internally-formatted text) */
-/* ---------------------------------------------------------------------- */
-
-#ifdef MULE
-# define VALID_CHARPTR_P(ptr) BUFBYTE_FIRST_BYTE_P (* (unsigned char *) ptr)
-#else
-# define VALID_CHARPTR_P(ptr) 1
-#endif
-
-#ifdef ERROR_CHECK_BUFPOS
-# define ASSERT_VALID_CHARPTR(ptr) assert (VALID_CHARPTR_P (ptr))
-#else
-# define ASSERT_VALID_CHARPTR(ptr)
-#endif
-
-/* Note that INC_CHARPTR() and DEC_CHARPTR() have to be written in
- completely separate ways. INC_CHARPTR() cannot use the DEC_CHARPTR()
- trick of looking for a valid first byte because it might run off
- the end of the string. DEC_CHARPTR() can't use the INC_CHARPTR()
- method because it doesn't have easy access to the first byte of
- the character it's moving over. */
-
-#define REAL_INC_CHARPTR(ptr) \
- ((void) ((ptr) += REP_BYTES_BY_FIRST_BYTE (* (unsigned char *) (ptr))))
-
-#define REAL_INC_CHARBYTIND(ptr,pos) \
- (pos += REP_BYTES_BY_FIRST_BYTE (* (unsigned char *) (ptr)))
-
-#define REAL_DEC_CHARPTR(ptr) do { \
- (ptr)--; \
-} while (!VALID_CHARPTR_P (ptr))
-
-#ifdef ERROR_CHECK_BUFPOS
-#define INC_CHARPTR(ptr) do { \
- ASSERT_VALID_CHARPTR (ptr); \
- REAL_INC_CHARPTR (ptr); \
-} while (0)
-
-#define INC_CHARBYTIND(ptr,pos) do { \
- ASSERT_VALID_CHARPTR (ptr); \
- REAL_INC_CHARBYTIND (ptr,pos); \
-} while (0)
-
-#define DEC_CHARPTR(ptr) do { \
- const Bufbyte *dc_ptr1 = (ptr); \
- const Bufbyte *dc_ptr2 = dc_ptr1; \
- REAL_DEC_CHARPTR (dc_ptr2); \
- assert (dc_ptr1 - dc_ptr2 == \
- REP_BYTES_BY_FIRST_BYTE (*dc_ptr2)); \
- (ptr) = dc_ptr2; \
-} while (0)
-
-#else /* ! ERROR_CHECK_BUFPOS */
-#define INC_CHARBYTIND(ptr,pos) REAL_INC_CHARBYTIND (ptr,pos)
-#define INC_CHARPTR(ptr) REAL_INC_CHARPTR (ptr)
-#define DEC_CHARPTR(ptr) REAL_DEC_CHARPTR (ptr)
-#endif /* ! ERROR_CHECK_BUFPOS */
-
-#ifdef MULE
-
-#define VALIDATE_CHARPTR_BACKWARD(ptr) do { \
- while (!VALID_CHARPTR_P (ptr)) ptr--; \
-} while (0)
-
-/* This needs to be trickier to avoid the possibility of running off
- the end of the string. */
-
-#define VALIDATE_CHARPTR_FORWARD(ptr) do { \
- Bufbyte *vcf_ptr = (ptr); \
- VALIDATE_CHARPTR_BACKWARD (vcf_ptr); \
- if (vcf_ptr != (ptr)) \
- { \
- (ptr) = vcf_ptr; \
- INC_CHARPTR (ptr); \
- } \
-} while (0)
-
-#else /* not MULE */
-#define VALIDATE_CHARPTR_BACKWARD(ptr)
-#define VALIDATE_CHARPTR_FORWARD(ptr)
-#endif /* not MULE */
-
-/* -------------------------------------------------------------- */
-/* (B) For working with the length (in bytes and characters) of a */
-/* section of internally-formatted text */
-/* -------------------------------------------------------------- */
-
-INLINE_HEADER const Bufbyte *
-charptr_n_addr (const Bufbyte *ptr, Charcount offset);
-INLINE_HEADER const Bufbyte *
-charptr_n_addr (const Bufbyte *ptr, Charcount offset)
-{
- return ptr + charcount_to_bytecount (ptr, offset);
-}
-
-/* -------------------------------------------------------------------- */
-/* (C) For retrieving or changing the character pointed to by a charptr */
-/* -------------------------------------------------------------------- */
-
-#define simple_charptr_emchar(ptr) ((Emchar) (ptr)[0])
-#define simple_set_charptr_emchar(ptr, x) ((ptr)[0] = (Bufbyte) (x), 1)
-#define simple_charptr_copy_char(ptr, ptr2) ((ptr2)[0] = *(ptr), 1)
-
-#ifdef MULE
-
-Emchar non_ascii_charptr_emchar (const Bufbyte *ptr);
-Bytecount non_ascii_set_charptr_emchar (Bufbyte *ptr, Emchar c);
-Bytecount non_ascii_charptr_copy_char (const Bufbyte *ptr, Bufbyte *ptr2);
-
-INLINE_HEADER Emchar charptr_emchar (const Bufbyte *ptr);
-INLINE_HEADER Emchar
-charptr_emchar (const Bufbyte *ptr)
-{
- return BYTE_ASCII_P (*ptr) ?
- simple_charptr_emchar (ptr) :
- non_ascii_charptr_emchar (ptr);
-}
-
-INLINE_HEADER Bytecount set_charptr_emchar (Bufbyte *ptr, Emchar x);
-INLINE_HEADER Bytecount
-set_charptr_emchar (Bufbyte *ptr, Emchar x)
-{
- return !CHAR_MULTIBYTE_P (x) ?
- simple_set_charptr_emchar (ptr, x) :
- non_ascii_set_charptr_emchar (ptr, x);
-}
-
-INLINE_HEADER Bytecount
-charptr_copy_char (const Bufbyte *ptr, Bufbyte *ptr2);
-INLINE_HEADER Bytecount
-charptr_copy_char (const Bufbyte *ptr, Bufbyte *ptr2)
-{
- return BYTE_ASCII_P (*ptr) ?
- simple_charptr_copy_char (ptr, ptr2) :
- non_ascii_charptr_copy_char (ptr, ptr2);
-}
-
-#else /* not MULE */
-
-# define charptr_emchar(ptr) simple_charptr_emchar (ptr)
-# define set_charptr_emchar(ptr, x) simple_set_charptr_emchar (ptr, x)
-# define charptr_copy_char(ptr, ptr2) simple_charptr_copy_char (ptr, ptr2)
-
-#endif /* not MULE */
-
-#define charptr_emchar_n(ptr, offset) \
- charptr_emchar (charptr_n_addr (ptr, offset))
-
-
-/* ---------------------------- */
-/* (D) For working with Emchars */
-/* ---------------------------- */
-
-#ifdef MULE
-
-int non_ascii_valid_char_p (Emchar ch);
-
-INLINE_HEADER int valid_char_p (Emchar ch);
-INLINE_HEADER int
-valid_char_p (Emchar ch)
-{
- return ((unsigned int) (ch) <= 0xff) || non_ascii_valid_char_p (ch);
-}
-
-#else /* not MULE */
-
-#define valid_char_p(ch) ((unsigned int) (ch) <= 0xff)
-
-#endif /* not MULE */
-
-#define CHAR_INTP(x) (INTP (x) && valid_char_p (XINT (x)))
-
-#define CHAR_OR_CHAR_INTP(x) (CHARP (x) || CHAR_INTP (x))
-
-#ifdef ERROR_CHECK_TYPECHECK
-
-INLINE_HEADER Emchar XCHAR_OR_CHAR_INT (Lisp_Object obj);
-INLINE_HEADER Emchar
-XCHAR_OR_CHAR_INT (Lisp_Object obj)
-{
- assert (CHAR_OR_CHAR_INTP (obj));
- return CHARP (obj) ? XCHAR (obj) : XINT (obj);
-}
-
-#else
-
-#define XCHAR_OR_CHAR_INT(obj) (CHARP (obj) ? XCHAR (obj) : XINT (obj))
-
-#endif
-
-#define CHECK_CHAR_COERCE_INT(x) do { \
- if (CHARP (x)) \
- ; \
- else if (CHAR_INTP (x)) \
- x = make_char (XINT (x)); \
- else \
- x = wrong_type_argument (Qcharacterp, x); \
-} while (0)
-
-#ifdef MULE
-# define MAX_EMCHAR_LEN 4
-#else
-# define MAX_EMCHAR_LEN 1
-#endif
-
\f
/*----------------------------------------------------------------------*/
/* Accessor macros for important positions in a buffer */
64K for width-three characters.
*/
+#ifndef UTF2000
extern short three_to_one_table[];
+#endif
INLINE_HEADER int real_bufpos_to_bytind (struct buffer *buf, Bufpos x);
INLINE_HEADER int
{
if (x >= buf->text->mule_bufmin && x <= buf->text->mule_bufmax)
return (buf->text->mule_bytmin +
+#ifdef UTF2000
+ (x - buf->text->mule_bufmin) * buf->text->mule_size
+#else
((x - buf->text->mule_bufmin) << buf->text->mule_shifter) +
- (buf->text->mule_three_p ? (x - buf->text->mule_bufmin) : 0));
+ (buf->text->mule_three_p ? (x - buf->text->mule_bufmin) : 0)
+#endif
+ );
else
return bufpos_to_bytind_func (buf, x);
}
{
if (x >= buf->text->mule_bytmin && x <= buf->text->mule_bytmax)
return (buf->text->mule_bufmin +
+#ifdef UTF2000
+ (buf->text->mule_size == 0 ? 0 :
+ (x - buf->text->mule_bytmin) / buf->text->mule_size)
+#else
((buf->text->mule_three_p
? three_to_one_table[x - buf->text->mule_bytmin]
- : (x - buf->text->mule_bytmin) >> buf->text->mule_shifter)));
+ : (x - buf->text->mule_bytmin) >> buf->text->mule_shifter))
+#endif
+ );
else
return bytind_to_bufpos_func (buf, x);
}
DATA, (ptr, len), // input data is a fixed buffer of size len
ALLOCA, (ptr, len), // output data is in a alloca()ed buffer of size len
MALLOC, (ptr, len), // output data is in a malloc()ed buffer of size len
- C_STRING_ALLOCA, ptr, // equivalent to ALLOCA (ptr, len_ignored) on output.
- C_STRING_MALLOC, ptr, // equivalent to MALLOC (ptr, len_ignored) on output.
+ C_STRING_ALLOCA, ptr, // equivalent to ALLOCA (ptr, len_ignored) on output
+ C_STRING_MALLOC, ptr, // equivalent to MALLOC (ptr, len_ignored) on output
C_STRING, ptr, // equivalent to DATA, (ptr, strlen (ptr) + 1) on input
LISP_STRING, string, // input or output is a Lisp_Object of type string
LISP_BUFFER, buffer, // output is written to (point) in lisp buffer
/* WARNING: These use a static buffer. This can lead to disaster if
these functions are not used *very* carefully. Another reason to only use
- TO_EXTERNAL_FORMATf() and TO_INTERNAL_FORMAT(). */
+ TO_EXTERNAL_FORMAT() and TO_INTERNAL_FORMAT(). */
void
dfc_convert_to_external_format (dfc_conversion_type source_type,
dfc_conversion_data *source,
argument to TO_EXTERNAL_FORMAT() and TO_INTERNAL_FORMAT(). */
#define Qnative Qfile_name
-\f
-/************************************************************************/
-/* */
-/* fake charset functions */
-/* */
-/************************************************************************/
+#if defined (WIN32_NATIVE) || defined (CYGWIN)
+/* #### kludge!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ Remove this as soon as my Mule code is integrated. */
+#define Qmswindows_tstr Qnative
+#endif
-/* used when MULE is not defined, so that Charset-type stuff can still
- be done */
-
-#ifndef MULE
-
-#define Vcharset_ascii Qnil
-
-#define CHAR_CHARSET(ch) Vcharset_ascii
-#define CHAR_LEADING_BYTE(ch) LEADING_BYTE_ASCII
-#define LEADING_BYTE_ASCII 0x80
-#define NUM_LEADING_BYTES 1
-#define MIN_LEADING_BYTE 0x80
-#define CHARSETP(cs) 1
-#define CHARSET_BY_LEADING_BYTE(lb) Vcharset_ascii
-#define XCHARSET_LEADING_BYTE(cs) LEADING_BYTE_ASCII
-#define XCHARSET_GRAPHIC(cs) -1
-#define XCHARSET_COLUMNS(cs) 1
-#define XCHARSET_DIMENSION(cs) 1
-#define REP_BYTES_BY_FIRST_BYTE(fb) 1
-#define BREAKUP_CHAR(ch, charset, byte1, byte2) do { \
- (charset) = Vcharset_ascii; \
- (byte1) = (ch); \
- (byte2) = 0; \
-} while (0)
-#define BYTE_ASCII_P(byte) 1
+/* More stand-ins */
+#define Qcommand_argument_encoding Qnative
+#define Qenvironment_variable_encoding Qnative
+
+/* Convenience macros for extremely common invocations */
+#define C_STRING_TO_EXTERNAL(in, out, coding_system) \
+ TO_EXTERNAL_FORMAT (C_STRING, in, C_STRING_ALLOCA, out, coding_system)
+#define C_STRING_TO_EXTERNAL_MALLOC(in, out, coding_system) \
+ TO_EXTERNAL_FORMAT (C_STRING, in, C_STRING_MALLOC, out, coding_system)
+#define EXTERNAL_TO_C_STRING(in, out, coding_system) \
+ TO_INTERNAL_FORMAT (C_STRING, in, C_STRING_ALLOCA, out, coding_system)
+#define EXTERNAL_TO_C_STRING_MALLOC(in, out, coding_system) \
+ TO_INTERNAL_FORMAT (C_STRING, in, C_STRING_MALLOC, out, coding_system)
+#define LISP_STRING_TO_EXTERNAL(in, out, coding_system) \
+ TO_EXTERNAL_FORMAT (LISP_STRING, in, C_STRING_ALLOCA, out, coding_system)
+#define LISP_STRING_TO_EXTERNAL_MALLOC(in, out, coding_system) \
+ TO_EXTERNAL_FORMAT (LISP_STRING, in, C_STRING_MALLOC, out, coding_system)
-#endif /* ! MULE */
\f
/************************************************************************/
/* */
/* from insdel.c */
void set_buffer_point (struct buffer *buf, Bufpos pos, Bytind bipos);
-void find_charsets_in_bufbyte_string (unsigned char *charsets,
+void find_charsets_in_bufbyte_string (Charset_ID *charsets,
const Bufbyte *str,
Bytecount len);
-void find_charsets_in_emchar_string (unsigned char *charsets,
- const Emchar *str,
- Charcount len);
+void find_charsets_in_charc_string (Charset_ID *charsets,
+ const Charc *str,
+ Charcount len);
int bufbyte_string_displayed_columns (const Bufbyte *str, Bytecount len);
-int emchar_string_displayed_columns (const Emchar *str, Charcount len);
-void convert_bufbyte_string_into_emchar_dynarr (const Bufbyte *str,
- Bytecount len,
- Emchar_dynarr *dyn);
+int charc_string_displayed_columns (const Charc *str, Charcount len);
+void convert_bufbyte_string_into_charc_dynarr (const Bufbyte *str,
+ Bytecount len,
+ Charc_dynarr *dyn);
Charcount convert_bufbyte_string_into_emchar_string (const Bufbyte *str,
Bytecount len,
Emchar *arr);
-void convert_emchar_string_into_bufbyte_dynarr (Emchar *arr, int nels,
- Bufbyte_dynarr *dyn);
-Bufbyte *convert_emchar_string_into_malloced_string (Emchar *arr, int nels,
+void convert_charc_string_into_bufbyte_dynarr (Charc *arr, int nels,
+ Bufbyte_dynarr *dyn);
+Bufbyte *convert_charc_string_into_malloced_string (Charc *arr, int nels,
Bytecount *len_out);
/* from marker.c */
void init_buffer_markers (struct buffer *b);
already guaranteed that the character values are all in the range
0 - 255. Bad lossage will happen otherwise. */
-# define MAKE_TRT_TABLE() Fmake_string (make_int (256), make_char (0))
-# define TRT_TABLE_AS_STRING(table) XSTRING_DATA (table)
-# define TRT_TABLE_CHAR_1(table, ch) \
- string_char (XSTRING (table), (Charcount) ch)
-# define SET_TRT_TABLE_CHAR_1(table, ch1, ch2) \
- set_string_char (XSTRING (table), (Charcount) ch1, ch2)
-
-#ifdef MULE
-# define MAKE_MIRROR_TRT_TABLE() make_opaque (OPAQUE_CLEAR, 256)
-# define MIRROR_TRT_TABLE_AS_STRING(table) ((Bufbyte *) XOPAQUE_DATA (table))
-# define MIRROR_TRT_TABLE_CHAR_1(table, ch) \
- ((Emchar) (MIRROR_TRT_TABLE_AS_STRING (table)[ch]))
-# define SET_MIRROR_TRT_TABLE_CHAR_1(table, ch1, ch2) \
- (MIRROR_TRT_TABLE_AS_STRING (table)[ch1] = (Bufbyte) (ch2))
-#endif
-
-# define IN_TRT_TABLE_DOMAIN(c) (((EMACS_UINT) (c)) <= 255)
-
-#ifdef MULE
-#define MIRROR_DOWNCASE_TABLE_AS_STRING(buf) \
- MIRROR_TRT_TABLE_AS_STRING (buf->mirror_downcase_table)
-#define MIRROR_UPCASE_TABLE_AS_STRING(buf) \
- MIRROR_TRT_TABLE_AS_STRING (buf->mirror_upcase_table)
-#define MIRROR_CANON_TABLE_AS_STRING(buf) \
- MIRROR_TRT_TABLE_AS_STRING (buf->mirror_case_canon_table)
-#define MIRROR_EQV_TABLE_AS_STRING(buf) \
- MIRROR_TRT_TABLE_AS_STRING (buf->mirror_case_eqv_table)
-#else
-#define MIRROR_DOWNCASE_TABLE_AS_STRING(buf) \
- TRT_TABLE_AS_STRING (buf->downcase_table)
-#define MIRROR_UPCASE_TABLE_AS_STRING(buf) \
- TRT_TABLE_AS_STRING (buf->upcase_table)
-#define MIRROR_CANON_TABLE_AS_STRING(buf) \
- TRT_TABLE_AS_STRING (buf->case_canon_table)
-#define MIRROR_EQV_TABLE_AS_STRING(buf) \
- TRT_TABLE_AS_STRING (buf->case_eqv_table)
-#endif
+#define MAKE_TRT_TABLE() Fmake_char_table (Qgeneric)
+INLINE_HEADER Emchar TRT_TABLE_CHAR_1 (Lisp_Object table, Emchar c);
+INLINE_HEADER Emchar
+TRT_TABLE_CHAR_1 (Lisp_Object table, Emchar ch)
+{
+ Lisp_Object TRT_char;
+ TRT_char = get_char_table (ch, XCHAR_TABLE (table));
+ if (NILP (TRT_char))
+ return ch;
+ else
+ return XCHAR (TRT_char);
+}
+#define SET_TRT_TABLE_CHAR_1(table, ch1, ch2) \
+ Fput_char_table (make_char (ch1), make_char (ch2), table);
INLINE_HEADER Emchar TRT_TABLE_OF (Lisp_Object trt, Emchar c);
INLINE_HEADER Emchar
TRT_TABLE_OF (Lisp_Object trt, Emchar c)
{
- return IN_TRT_TABLE_DOMAIN (c) ? TRT_TABLE_CHAR_1 (trt, c) : c;
+ return TRT_TABLE_CHAR_1 (trt, c);
}
/* Macros used below. */
-#define DOWNCASE_TABLE_OF(buf, c) TRT_TABLE_OF (buf->downcase_table, c)
-#define UPCASE_TABLE_OF(buf, c) TRT_TABLE_OF (buf->upcase_table, c)
+#define DOWNCASE_TABLE_OF(buf, c) \
+ TRT_TABLE_OF (XCASE_TABLE_DOWNCASE (buf->case_table), c)
+#define UPCASE_TABLE_OF(buf, c) \
+ TRT_TABLE_OF (XCASE_TABLE_UPCASE (buf->case_table), c)
/* 1 if CH is upper case. */
#define DOWNCASE(buf, ch) DOWNCASE_TABLE_OF (buf, ch)
+/************************************************************************/
+/* Lisp string representation convenience functions */
+/************************************************************************/
+/* Because the representation of internally formatted data is subject to change,
+ It's bad style to do something like strcmp (XSTRING_DATA (s), "foo")
+ Instead, use the portable: bufbyte_strcmp (XSTRING_DATA (s), "foo")
+ or bufbyte_memcmp (XSTRING_DATA (s), "foo", 3) */
+
+/* Like strcmp, except first arg points at internally formatted data,
+ while the second points at a string of only ASCII chars. */
+INLINE_HEADER int
+bufbyte_strcmp (const Bufbyte *bp, const char *ascii_string);
+INLINE_HEADER int
+bufbyte_strcmp (const Bufbyte *bp, const char *ascii_string)
+{
+#ifdef MULE
+ while (1)
+ {
+ int diff;
+ type_checking_assert (BYTE_ASCII_P (*ascii_string));
+ if ((diff = charptr_emchar (bp) - *(Bufbyte *) ascii_string) != 0)
+ return diff;
+ if (*ascii_string == '\0')
+ return 0;
+ ascii_string++;
+ INC_CHARPTR (bp);
+ }
+#else
+ return strcmp ((char *)bp, ascii_string);
+#endif
+}
+
+
+/* Like memcmp, except first arg points at internally formatted data,
+ while the second points at a string of only ASCII chars. */
+INLINE_HEADER int
+bufbyte_memcmp (const Bufbyte *bp, const char *ascii_string, size_t len);
+INLINE_HEADER int
+bufbyte_memcmp (const Bufbyte *bp, const char *ascii_string, size_t len)
+{
+#ifdef MULE
+ while (len--)
+ {
+ int diff = charptr_emchar (bp) - *(Bufbyte *) ascii_string;
+ type_checking_assert (BYTE_ASCII_P (*ascii_string));
+ if (diff != 0)
+ return diff;
+ ascii_string++;
+ INC_CHARPTR (bp);
+ }
+ return 0;
+#else
+ return memcmp (bp, ascii_string, len);
+#endif
+}
+
#endif /* INCLUDED_buffer_h_ */
projects / chise / xemacs-chise.git.1 / blobdiff