*** empty log message ***
[bpt/emacs.git] / src / syntax.h
index 010f063..f64aa0e 100644 (file)
@@ -1,5 +1,6 @@
 /* Declarations having to do with GNU Emacs syntax tables.
 /* Declarations having to do with GNU Emacs syntax tables.
-   Copyright (C) 1985, 93, 94, 97, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1985, 1993, 1994, 1997, 1998, 2001, 2002, 2003, 2004,
+                 2005, 2006, 2007  Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
 
 This file is part of GNU Emacs.
 
@@ -15,8 +16,8 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU Emacs; see the file COPYING.  If not, write to
 
 You should have received a copy of the GNU General Public License
 along with GNU Emacs; see the file COPYING.  If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
 
 
 extern Lisp_Object Qsyntax_table_p;
 
 
 extern Lisp_Object Qsyntax_table_p;
@@ -58,7 +59,7 @@ enum syntaxcode
 /* Set the syntax entry VAL for char C in table TABLE.  */
 
 #define SET_RAW_SYNTAX_ENTRY(table, c, val)                            \
 /* Set the syntax entry VAL for char C in table TABLE.  */
 
 #define SET_RAW_SYNTAX_ENTRY(table, c, val)                            \
-  ((c) < CHAR_TABLE_SINGLE_BYTE_SLOTS                                  \
+  ((((c) & 0xFF) == (c))                                               \
    ? (XCHAR_TABLE (table)->contents[(unsigned char) (c)] = (val))      \
    : Faset ((table), make_number (c), (val)))
 
    ? (XCHAR_TABLE (table)->contents[(unsigned char) (c)] = (val))      \
    : Faset ((table), make_number (c), (val)))
 
@@ -68,16 +69,16 @@ enum syntaxcode
 
 #ifdef __GNUC__
 #define SYNTAX_ENTRY_FOLLOW_PARENT(table, c)                   \
 
 #ifdef __GNUC__
 #define SYNTAX_ENTRY_FOLLOW_PARENT(table, c)                   \
-  ({ Lisp_Object tbl = table;                                  \
-     Lisp_Object temp = XCHAR_TABLE (tbl)->contents[(c)];      \
-     while (NILP (temp))                                       \
+  ({ Lisp_Object _syntax_tbl = (table);                                \
+     Lisp_Object _syntax_temp = XCHAR_TABLE (_syntax_tbl)->contents[(c)]; \
+     while (NILP (_syntax_temp))                               \
        {                                                       \
        {                                                       \
-        tbl = XCHAR_TABLE (tbl)->parent;                       \
-        if (NILP (tbl))                                        \
+        _syntax_tbl = XCHAR_TABLE (_syntax_tbl)->parent;       \
+        if (NILP (_syntax_tbl))                                \
           break;                                               \
           break;                                               \
-        temp = XCHAR_TABLE (tbl)->contents[(c)];               \
+        _syntax_temp = XCHAR_TABLE (_syntax_tbl)->contents[(c)]; \
        }                                                       \
        }                                                       \
-     temp; })
+     _syntax_temp; })
 #else
 extern Lisp_Object syntax_temp;
 extern Lisp_Object syntax_parent_lookup P_ ((Lisp_Object, int));
 #else
 extern Lisp_Object syntax_temp;
 extern Lisp_Object syntax_parent_lookup P_ ((Lisp_Object, int));
@@ -90,7 +91,7 @@ extern Lisp_Object syntax_parent_lookup P_ ((Lisp_Object, int));
 #endif
 
 /* SYNTAX_ENTRY fetches the information from the entry for character C
 #endif
 
 /* SYNTAX_ENTRY fetches the information from the entry for character C
-   in syntax table TABLE, or from globally kept data (gl_state).  
+   in syntax table TABLE, or from globally kept data (gl_state).
    Does inheritance.  */
 /* CURRENT_SYNTAX_TABLE gives the syntax table valid for current
    position, it is either the buffer's syntax table, or syntax table
    Does inheritance.  */
 /* CURRENT_SYNTAX_TABLE gives the syntax table valid for current
    position, it is either the buffer's syntax table, or syntax table
@@ -105,65 +106,65 @@ extern Lisp_Object syntax_parent_lookup P_ ((Lisp_Object, int));
 #  define CURRENT_SYNTAX_TABLE current_buffer->syntax_table
 #endif
 
 #  define CURRENT_SYNTAX_TABLE current_buffer->syntax_table
 #endif
 
-#define SYNTAX_ENTRY_INT(c)                                    \
-  ((c) < CHAR_TABLE_SINGLE_BYTE_SLOTS                          \
-   ? SYNTAX_ENTRY_FOLLOW_PARENT (CURRENT_SYNTAX_TABLE,         \
-                                (unsigned char) (c))           \
-   : Faref (CURRENT_SYNTAX_TABLE,                              \
-           make_number (COMPOSITE_CHAR_P (c)                   \
-                        ? cmpchar_component ((c), 0, 1)        \
-                        : (c))))
+#define SYNTAX_ENTRY_INT(c)                            \
+  ((((c) & 0xFF) == (c))                               \
+   ? SYNTAX_ENTRY_FOLLOW_PARENT (CURRENT_SYNTAX_TABLE, \
+                                (unsigned char) (c))   \
+   : Faref (CURRENT_SYNTAX_TABLE,                      \
+           make_number (c)))
 
 /* Extract the information from the entry for character C
    in the current syntax table.  */
 
 #ifdef __GNUC__
 #define SYNTAX(c)                                                      \
 
 /* Extract the information from the entry for character C
    in the current syntax table.  */
 
 #ifdef __GNUC__
 #define SYNTAX(c)                                                      \
-  ({ Lisp_Object temp;                                                 \
-     temp = SYNTAX_ENTRY (c);                                          \
-     (CONSP (temp)                                                     \
-      ? (enum syntaxcode) (XINT (XCONS (temp)->car) & 0xff)            \
+  ({ Lisp_Object _syntax_temp;                                         \
+     _syntax_temp = SYNTAX_ENTRY (c);                                  \
+     (CONSP (_syntax_temp)                                             \
+      ? (enum syntaxcode) (XINT (XCAR (_syntax_temp)) & 0xff)          \
       : Swhitespace); })
 
 #define SYNTAX_WITH_FLAGS(c)                                           \
       : Swhitespace); })
 
 #define SYNTAX_WITH_FLAGS(c)                                           \
-  ({ Lisp_Object temp;                                                 \
-     temp = SYNTAX_ENTRY (c);                                          \
-     (CONSP (temp)                                                     \
-      ? XINT (XCONS (temp)->car)                                       \
+  ({ Lisp_Object _syntax_temp;                                         \
+     _syntax_temp = SYNTAX_ENTRY (c);                                  \
+     (CONSP (_syntax_temp)                                             \
+      ? XINT (XCAR (_syntax_temp))                                     \
       : (int) Swhitespace); })
 
 #define SYNTAX_MATCH(c)                                                        \
       : (int) Swhitespace); })
 
 #define SYNTAX_MATCH(c)                                                        \
-  ({ Lisp_Object temp;                                                 \
-     temp = SYNTAX_ENTRY (c);                                          \
-     (CONSP (temp)                                                     \
-      ? XCONS (temp)->cdr                                              \
+  ({ Lisp_Object _syntax_temp;                                         \
+     _syntax_temp = SYNTAX_ENTRY (c);                                  \
+     (CONSP (_syntax_temp)                                             \
+      ? XCDR (_syntax_temp)                                            \
       : Qnil); })
 #else
 #define SYNTAX(c)                                                      \
   (syntax_temp = SYNTAX_ENTRY ((c)),                                   \
    (CONSP (syntax_temp)                                                        \
       : Qnil); })
 #else
 #define SYNTAX(c)                                                      \
   (syntax_temp = SYNTAX_ENTRY ((c)),                                   \
    (CONSP (syntax_temp)                                                        \
-    ? (enum syntaxcode) (XINT (XCONS (syntax_temp)->car) & 0xff)       \
+    ? (enum syntaxcode) (XINT (XCAR (syntax_temp)) & 0xff)     \
     : Swhitespace))
 
 #define SYNTAX_WITH_FLAGS(c)                                           \
   (syntax_temp = SYNTAX_ENTRY ((c)),                                   \
    (CONSP (syntax_temp)                                                        \
     : Swhitespace))
 
 #define SYNTAX_WITH_FLAGS(c)                                           \
   (syntax_temp = SYNTAX_ENTRY ((c)),                                   \
    (CONSP (syntax_temp)                                                        \
-    ? XINT (XCONS (syntax_temp)->car)                                  \
+    ? XINT (XCAR (syntax_temp))                                        \
     : (int) Swhitespace))
 
 #define SYNTAX_MATCH(c)                                                        \
   (syntax_temp = SYNTAX_ENTRY ((c)),                                   \
    (CONSP (syntax_temp)                                                        \
     : (int) Swhitespace))
 
 #define SYNTAX_MATCH(c)                                                        \
   (syntax_temp = SYNTAX_ENTRY ((c)),                                   \
    (CONSP (syntax_temp)                                                        \
-    ? XCONS (syntax_temp)->cdr                                         \
+    ? XCDR (syntax_temp)                                               \
     : Qnil))
 #endif
 
     : Qnil))
 #endif
 
-/* Then there are six single-bit flags that have the following meanings:
+/* Then there are seven single-bit flags that have the following meanings:
   1. This character is the first of a two-character comment-start sequence.
   2. This character is the second of a two-character comment-start sequence.
   3. This character is the first of a two-character comment-end sequence.
   4. This character is the second of a two-character comment-end sequence.
   5. This character is a prefix, for backward-prefix-chars.
   1. This character is the first of a two-character comment-start sequence.
   2. This character is the second of a two-character comment-start sequence.
   3. This character is the first of a two-character comment-end sequence.
   4. This character is the second of a two-character comment-end sequence.
   5. This character is a prefix, for backward-prefix-chars.
+  6. see below
+  7. This character is part of a nestable comment sequence.
   Note that any two-character sequence whose first character has flag 1
   and whose second character has flag 2 will be interpreted as a comment start.
 
   Note that any two-character sequence whose first character has flag 1
   and whose second character has flag 2 will be interpreted as a comment start.
 
@@ -188,6 +189,8 @@ extern Lisp_Object syntax_parent_lookup P_ ((Lisp_Object, int));
 
 #define SYNTAX_COMMENT_STYLE(c) ((SYNTAX_WITH_FLAGS (c) >> 21) & 1)
 
 
 #define SYNTAX_COMMENT_STYLE(c) ((SYNTAX_WITH_FLAGS (c) >> 21) & 1)
 
+#define SYNTAX_COMMENT_NESTED(c) ((SYNTAX_WITH_FLAGS (c) >> 22) & 1)
+
 /* These macros extract specific flags from an integer
    that holds the syntax code and the flags.  */
 
 /* These macros extract specific flags from an integer
    that holds the syntax code and the flags.  */
 
@@ -203,6 +206,8 @@ extern Lisp_Object syntax_parent_lookup P_ ((Lisp_Object, int));
 
 #define SYNTAX_FLAGS_COMMENT_STYLE(flags) (((flags) >> 21) & 1)
 
 
 #define SYNTAX_FLAGS_COMMENT_STYLE(flags) (((flags) >> 21) & 1)
 
+#define SYNTAX_FLAGS_COMMENT_NESTED(flags) (((flags) >> 22) & 1)
+
 /* This array, indexed by a character, contains the syntax code which that
  character signifies (as a char).  For example,
  (enum syntaxcode) syntax_spec_code['w'] is Sword.  */
 /* This array, indexed by a character, contains the syntax code which that
  character signifies (as a char).  For example,
  (enum syntaxcode) syntax_spec_code['w'] is Sword.  */
@@ -248,7 +253,7 @@ extern char syntax_code_spec[16];
 
 #define UPDATE_SYNTAX_TABLE_BACKWARD(charpos)                  \
   (parse_sexp_lookup_properties                                        \
 
 #define UPDATE_SYNTAX_TABLE_BACKWARD(charpos)                  \
   (parse_sexp_lookup_properties                                        \
-   && (charpos) <= gl_state.b_property                         \
+   && (charpos) < gl_state.b_property                          \
    ? (update_syntax_table ((charpos) + gl_state.offset, -1, 0, \
                           gl_state.object),                    \
       1)                                                       \
    ? (update_syntax_table ((charpos) + gl_state.offset, -1, 0, \
                           gl_state.object),                    \
       1)                                                       \
@@ -258,7 +263,7 @@ extern char syntax_code_spec[16];
 
 #define UPDATE_SYNTAX_TABLE(charpos)                           \
   (parse_sexp_lookup_properties                                        \
 
 #define UPDATE_SYNTAX_TABLE(charpos)                           \
   (parse_sexp_lookup_properties                                        \
-   && (charpos) <= gl_state.b_property                         \
+   && (charpos) < gl_state.b_property                          \
    ? (update_syntax_table ((charpos) + gl_state.offset, -1, 0, \
                           gl_state.object),                    \
       1)                                                       \
    ? (update_syntax_table ((charpos) + gl_state.offset, -1, 0, \
                           gl_state.object),                    \
       1)                                                       \
@@ -273,14 +278,14 @@ extern char syntax_code_spec[16];
    search, or after the last position of the backward search.  It
    makes sure that the first char is picked up with correct table, so
    one does not need to call UPDATE_SYNTAX_TABLE immediately after the
    search, or after the last position of the backward search.  It
    makes sure that the first char is picked up with correct table, so
    one does not need to call UPDATE_SYNTAX_TABLE immediately after the
-   call. 
+   call.
    Sign of COUNT gives the direction of the search.
  */
 
 #define SETUP_SYNTAX_TABLE(FROM, COUNT)                                        \
 if (1)                                                                 \
   {                                                                    \
    Sign of COUNT gives the direction of the search.
  */
 
 #define SETUP_SYNTAX_TABLE(FROM, COUNT)                                        \
 if (1)                                                                 \
   {                                                                    \
-    gl_state.b_property = BEGV - 1;                                    \
+    gl_state.b_property = BEGV;                                                \
     gl_state.e_property = ZV + 1;                                      \
     gl_state.object = Qnil;                                            \
     gl_state.use_global = 0;                                           \
     gl_state.e_property = ZV + 1;                                      \
     gl_state.object = Qnil;                                            \
     gl_state.use_global = 0;                                           \
@@ -307,26 +312,26 @@ if (1)                                                                    \
     if (BUFFERP (gl_state.object))                                     \
       {                                                                        \
        struct buffer *buf = XBUFFER (gl_state.object);                 \
     if (BUFFERP (gl_state.object))                                     \
       {                                                                        \
        struct buffer *buf = XBUFFER (gl_state.object);                 \
-       gl_state.b_property = 0;                                        \
+       gl_state.b_property = 1;                                        \
        gl_state.e_property = BUF_ZV (buf) - BUF_BEGV (buf) + 1;        \
        gl_state.offset = BUF_BEGV (buf) - 1;                           \
       }                                                                        \
     else if (NILP (gl_state.object))                                   \
       {                                                                        \
        gl_state.e_property = BUF_ZV (buf) - BUF_BEGV (buf) + 1;        \
        gl_state.offset = BUF_BEGV (buf) - 1;                           \
       }                                                                        \
     else if (NILP (gl_state.object))                                   \
       {                                                                        \
-       gl_state.b_property = 0;                                        \
+       gl_state.b_property = 1;                                        \
        gl_state.e_property = ZV - BEGV + 1;                            \
        gl_state.offset = BEGV - 1;                                     \
       }                                                                        \
     else if (EQ (gl_state.object, Qt))                                 \
       {                                                                        \
        gl_state.e_property = ZV - BEGV + 1;                            \
        gl_state.offset = BEGV - 1;                                     \
       }                                                                        \
     else if (EQ (gl_state.object, Qt))                                 \
       {                                                                        \
-       gl_state.b_property = - 1;                                      \
+       gl_state.b_property = 0;                                        \
        gl_state.e_property = 1500000000;                               \
        gl_state.offset = 0;                                            \
       }                                                                        \
     else                                                               \
       {                                                                        \
        gl_state.e_property = 1500000000;                               \
        gl_state.offset = 0;                                            \
       }                                                                        \
     else                                                               \
       {                                                                        \
-       gl_state.b_property = -1;                                       \
-       gl_state.e_property = 1 + XSTRING (gl_state.object)->size;      \
+       gl_state.b_property = 0;                                        \
+       gl_state.e_property = 1 + SCHARS (gl_state.object);             \
        gl_state.offset = 0;                                            \
       }                                                                        \
     gl_state.use_global = 0;                                           \
        gl_state.offset = 0;                                            \
       }                                                                        \
     gl_state.use_global = 0;                                           \
@@ -348,8 +353,7 @@ struct gl_state_s
   Lisp_Object global_code;             /* Syntax code of current char. */
   Lisp_Object current_syntax_table;    /* Syntax table for current pos. */
   Lisp_Object old_prop;                        /* Syntax-table prop at prev pos. */
   Lisp_Object global_code;             /* Syntax code of current char. */
   Lisp_Object current_syntax_table;    /* Syntax table for current pos. */
   Lisp_Object old_prop;                        /* Syntax-table prop at prev pos. */
-  int b_property;                      /* Last index where c_s_t is 
-                                          not valid. */
+  int b_property;                      /* First index where c_s_t is valid. */
   int e_property;                      /* First index where c_s_t is
                                           not valid. */
   INTERVAL forward_i;                  /* Where to start lookup on forward */
   int e_property;                      /* First index where c_s_t is
                                           not valid. */
   INTERVAL forward_i;                  /* Where to start lookup on forward */
@@ -361,8 +365,6 @@ struct gl_state_s
                                           on: */
   /* Offset for positions specified to UPDATE_SYNTAX_TABLE.  */
   int offset;
                                           on: */
   /* Offset for positions specified to UPDATE_SYNTAX_TABLE.  */
   int offset;
-  char left_ok;
-  char right_ok;
 };
 
 extern struct gl_state_s gl_state;
 };
 
 extern struct gl_state_s gl_state;
@@ -370,3 +372,6 @@ extern int parse_sexp_lookup_properties;
 extern INTERVAL interval_of P_ ((int, Lisp_Object));
 
 extern int scan_words P_ ((int, int));
 extern INTERVAL interval_of P_ ((int, Lisp_Object));
 
 extern int scan_words P_ ((int, int));
+
+/* arch-tag: 28833cca-cd73-4741-8c85-a3111166a0e0
+   (do not change this comment) */