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(struct buffer): Add extra_line_spacing, remove extra2
and extra3.
This commit is contained in:
Gerd Moellmann
parent
d365f5bb0b
commit
82b911fda5
499
src/buffer.h
499
src/buffer.h
@ -436,306 +436,309 @@ struct buffer_text
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/* This is the structure that the buffer Lisp object points to. */
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struct buffer
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{
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/* Everything before the `name' slot must be of a non-Lisp_Object type,
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and every slot after `name' must be a Lisp_Object.
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{
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/* Everything before the `name' slot must be of a non-Lisp_Object type,
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and every slot after `name' must be a Lisp_Object.
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Check out mark_buffer (alloc.c) to see why. */
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Check out mark_buffer (alloc.c) to see why. */
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EMACS_INT size;
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EMACS_INT size;
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/* Next buffer, in chain of all buffers including killed buffers.
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This chain is used only for garbage collection, in order to
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collect killed buffers properly.
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Note that vectors and most pseudovectors are all on one chain,
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but buffers are on a separate chain of their own. */
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struct buffer *next;
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/* Next buffer, in chain of all buffers including killed buffers.
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This chain is used only for garbage collection, in order to
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collect killed buffers properly.
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Note that vectors and most pseudovectors are all on one chain,
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but buffers are on a separate chain of their own. */
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struct buffer *next;
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/* This structure holds the coordinates of the buffer contents
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in ordinary buffers. In indirect buffers, this is not used. */
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struct buffer_text own_text;
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/* This structure holds the coordinates of the buffer contents
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in ordinary buffers. In indirect buffers, this is not used. */
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struct buffer_text own_text;
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/* This points to the `struct buffer_text' that used for this buffer.
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In an ordinary buffer, this is the own_text field above.
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In an indirect buffer, this is the own_text field of another buffer. */
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struct buffer_text *text;
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/* This points to the `struct buffer_text' that used for this buffer.
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In an ordinary buffer, this is the own_text field above.
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In an indirect buffer, this is the own_text field of another buffer. */
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struct buffer_text *text;
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/* Char position of point in buffer. */
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int pt;
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/* Byte position of point in buffer. */
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int pt_byte;
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/* Char position of beginning of accessible range. */
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int begv;
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/* Byte position of beginning of accessible range. */
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int begv_byte;
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/* Char position of end of accessible range. */
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int zv;
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/* Byte position of end of accessible range. */
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int zv_byte;
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/* Char position of point in buffer. */
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int pt;
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/* Byte position of point in buffer. */
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int pt_byte;
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/* Char position of beginning of accessible range. */
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int begv;
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/* Byte position of beginning of accessible range. */
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int begv_byte;
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/* Char position of end of accessible range. */
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int zv;
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/* Byte position of end of accessible range. */
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int zv_byte;
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/* In an indirect buffer, this points to the base buffer.
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In an ordinary buffer, it is 0. */
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struct buffer *base_buffer;
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/* In an indirect buffer, this points to the base buffer.
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In an ordinary buffer, it is 0. */
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struct buffer *base_buffer;
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/* A non-zero value in slot IDX means that per-buffer variable
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with index IDX has a local value in this buffer. The index IDX
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for a buffer-local variable is stored in that variable's slot
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in buffer_local_flags as a Lisp integer. If the index is -1,
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this means the variable is always local in all buffers. */
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/* A non-zero value in slot IDX means that per-buffer variable
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with index IDX has a local value in this buffer. The index IDX
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for a buffer-local variable is stored in that variable's slot
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in buffer_local_flags as a Lisp integer. If the index is -1,
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this means the variable is always local in all buffers. */
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#define MAX_PER_BUFFER_VARS 50
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char local_flags[MAX_PER_BUFFER_VARS];
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char local_flags[MAX_PER_BUFFER_VARS];
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/* Set to the modtime of the visited file when read or written.
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-1 means visited file was nonexistent.
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0 means visited file modtime unknown; in no case complain
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about any mismatch on next save attempt. */
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int modtime;
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/* the value of text->modiff at the last auto-save. */
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int auto_save_modified;
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/* The time at which we detected a failure to auto-save,
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Or -1 if we didn't have a failure. */
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int auto_save_failure_time;
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/* Position in buffer at which display started
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the last time this buffer was displayed. */
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int last_window_start;
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/* Set to the modtime of the visited file when read or written.
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-1 means visited file was nonexistent.
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0 means visited file modtime unknown; in no case complain
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about any mismatch on next save attempt. */
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int modtime;
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/* the value of text->modiff at the last auto-save. */
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int auto_save_modified;
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/* The time at which we detected a failure to auto-save,
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Or -1 if we didn't have a failure. */
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int auto_save_failure_time;
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/* Position in buffer at which display started
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the last time this buffer was displayed. */
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int last_window_start;
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/* Set nonzero whenever the narrowing is changed in this buffer. */
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int clip_changed;
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/* Set nonzero whenever the narrowing is changed in this buffer. */
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int clip_changed;
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/* If the long line scan cache is enabled (i.e. the buffer-local
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variable cache-long-line-scans is non-nil), newline_cache
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points to the newline cache, and width_run_cache points to the
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width run cache.
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/* If the long line scan cache is enabled (i.e. the buffer-local
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variable cache-long-line-scans is non-nil), newline_cache
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points to the newline cache, and width_run_cache points to the
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width run cache.
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The newline cache records which stretches of the buffer are
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known *not* to contain newlines, so that they can be skipped
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quickly when we search for newlines.
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The newline cache records which stretches of the buffer are
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known *not* to contain newlines, so that they can be skipped
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quickly when we search for newlines.
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The width run cache records which stretches of the buffer are
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known to contain characters whose widths are all the same. If
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the width run cache maps a character to a value > 0, that value is
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the character's width; if it maps a character to zero, we don't
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know what its width is. This allows compute_motion to process
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such regions very quickly, using algebra instead of inspecting
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each character. See also width_table, below. */
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struct region_cache *newline_cache;
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struct region_cache *width_run_cache;
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The width run cache records which stretches of the buffer are
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known to contain characters whose widths are all the same. If
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the width run cache maps a character to a value > 0, that value is
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the character's width; if it maps a character to zero, we don't
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know what its width is. This allows compute_motion to process
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such regions very quickly, using algebra instead of inspecting
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each character. See also width_table, below. */
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struct region_cache *newline_cache;
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struct region_cache *width_run_cache;
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/* Non-zero means don't use redisplay optimizations for
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displaying this buffer. */
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unsigned prevent_redisplay_optimizations_p : 1;
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/* Non-zero means don't use redisplay optimizations for
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displaying this buffer. */
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unsigned prevent_redisplay_optimizations_p : 1;
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/* Changes in the buffer are recorded here for undo.
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t means don't record anything.
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This information belongs to the base buffer of an indirect buffer,
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But we can't store it in the struct buffer_text
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because local variables have to be right in the struct buffer.
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So we copy it around in set_buffer_internal.
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This comes before `name' because it is marked in a special way. */
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Lisp_Object undo_list;
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/* Changes in the buffer are recorded here for undo.
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t means don't record anything.
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This information belongs to the base buffer of an indirect buffer,
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But we can't store it in the struct buffer_text
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because local variables have to be right in the struct buffer.
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So we copy it around in set_buffer_internal.
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This comes before `name' because it is marked in a special way. */
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Lisp_Object undo_list;
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/* Everything from here down must be a Lisp_Object */
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/* Everything from here down must be a Lisp_Object */
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/* The name of this buffer. */
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Lisp_Object name;
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/* The name of this buffer. */
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Lisp_Object name;
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/* The name of the file visited in this buffer, or nil. */
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Lisp_Object filename;
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/* Dir for expanding relative file names. */
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Lisp_Object directory;
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/* True iff this buffer has been backed up (if you write to the
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visited file and it hasn't been backed up, then a backup will
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be made). */
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/* This isn't really used by the C code, so could be deleted. */
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Lisp_Object backed_up;
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/* Length of file when last read or saved.
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This is not in the struct buffer_text
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because it's not used in indirect buffers at all. */
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Lisp_Object save_length;
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/* File name used for auto-saving this buffer.
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This is not in the struct buffer_text
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because it's not used in indirect buffers at all. */
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Lisp_Object auto_save_file_name;
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/* The name of the file visited in this buffer, or nil. */
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Lisp_Object filename;
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/* Dir for expanding relative file names. */
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Lisp_Object directory;
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/* True iff this buffer has been backed up (if you write to the
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visited file and it hasn't been backed up, then a backup will
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be made). */
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/* This isn't really used by the C code, so could be deleted. */
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Lisp_Object backed_up;
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/* Length of file when last read or saved.
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This is not in the struct buffer_text
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because it's not used in indirect buffers at all. */
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Lisp_Object save_length;
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/* File name used for auto-saving this buffer.
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This is not in the struct buffer_text
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because it's not used in indirect buffers at all. */
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Lisp_Object auto_save_file_name;
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/* Non-nil if buffer read-only. */
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Lisp_Object read_only;
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/* "The mark". This is a marker which may
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point into this buffer or may point nowhere. */
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Lisp_Object mark;
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/* Non-nil if buffer read-only. */
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Lisp_Object read_only;
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/* "The mark". This is a marker which may
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point into this buffer or may point nowhere. */
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Lisp_Object mark;
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/* Alist of elements (SYMBOL . VALUE-IN-THIS-BUFFER)
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for all per-buffer variables of this buffer. */
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Lisp_Object local_var_alist;
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/* Alist of elements (SYMBOL . VALUE-IN-THIS-BUFFER)
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for all per-buffer variables of this buffer. */
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Lisp_Object local_var_alist;
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/* Symbol naming major mode (eg, lisp-mode). */
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Lisp_Object major_mode;
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/* Pretty name of major mode (eg, "Lisp"). */
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Lisp_Object mode_name;
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/* Mode line element that controls format of mode line. */
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Lisp_Object mode_line_format;
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/* Symbol naming major mode (eg, lisp-mode). */
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Lisp_Object major_mode;
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/* Pretty name of major mode (eg, "Lisp"). */
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Lisp_Object mode_name;
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/* Mode line element that controls format of mode line. */
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Lisp_Object mode_line_format;
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/* Analogous to mode_line_format for the line displayed at the top
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of windows. Nil means don't display that line. */
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Lisp_Object header_line_format;
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/* Analogous to mode_line_format for the line displayed at the top
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of windows. Nil means don't display that line. */
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Lisp_Object header_line_format;
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/* Keys that are bound local to this buffer. */
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Lisp_Object keymap;
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/* This buffer's local abbrev table. */
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Lisp_Object abbrev_table;
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/* This buffer's syntax table. */
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Lisp_Object syntax_table;
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/* This buffer's category table. */
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Lisp_Object category_table;
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/* Keys that are bound local to this buffer. */
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Lisp_Object keymap;
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/* This buffer's local abbrev table. */
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Lisp_Object abbrev_table;
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/* This buffer's syntax table. */
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Lisp_Object syntax_table;
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/* This buffer's category table. */
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Lisp_Object category_table;
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/* Values of several buffer-local variables */
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/* tab-width is buffer-local so that redisplay can find it
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in buffers that are not current */
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Lisp_Object case_fold_search;
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Lisp_Object tab_width;
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Lisp_Object fill_column;
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Lisp_Object left_margin;
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/* Function to call when insert space past fill column. */
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Lisp_Object auto_fill_function;
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/* nil: text, t: binary.
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This value is meaningful only on certain operating systems. */
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/* Actually, we don't need this flag any more because end-of-line
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is handled correctly according to the buffer-file-coding-system
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of the buffer. Just keeping it for backward compatibility. */
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Lisp_Object buffer_file_type;
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/* Values of several buffer-local variables */
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/* tab-width is buffer-local so that redisplay can find it
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in buffers that are not current */
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Lisp_Object case_fold_search;
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Lisp_Object tab_width;
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Lisp_Object fill_column;
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Lisp_Object left_margin;
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/* Function to call when insert space past fill column. */
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Lisp_Object auto_fill_function;
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/* nil: text, t: binary.
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This value is meaningful only on certain operating systems. */
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/* Actually, we don't need this flag any more because end-of-line
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is handled correctly according to the buffer-file-coding-system
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of the buffer. Just keeping it for backward compatibility. */
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Lisp_Object buffer_file_type;
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/* Case table for case-conversion in this buffer.
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This char-table maps each char into its lower-case version. */
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Lisp_Object downcase_table;
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/* Char-table mapping each char to its upper-case version. */
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Lisp_Object upcase_table;
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/* Char-table for conversion for case-folding search. */
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Lisp_Object case_canon_table;
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/* Char-table of equivalences for case-folding search. */
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Lisp_Object case_eqv_table;
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/* Case table for case-conversion in this buffer.
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This char-table maps each char into its lower-case version. */
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Lisp_Object downcase_table;
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/* Char-table mapping each char to its upper-case version. */
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Lisp_Object upcase_table;
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/* Char-table for conversion for case-folding search. */
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Lisp_Object case_canon_table;
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/* Char-table of equivalences for case-folding search. */
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Lisp_Object case_eqv_table;
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/* Non-nil means do not display continuation lines. */
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Lisp_Object truncate_lines;
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/* Non-nil means display ctl chars with uparrow. */
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Lisp_Object ctl_arrow;
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/* Non-nil means display text from right to left. */
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Lisp_Object direction_reversed;
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/* Non-nil means do selective display;
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see doc string in syms_of_buffer (buffer.c) for details. */
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Lisp_Object selective_display;
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/* Non-nil means do not display continuation lines. */
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Lisp_Object truncate_lines;
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/* Non-nil means display ctl chars with uparrow. */
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Lisp_Object ctl_arrow;
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/* Non-nil means display text from right to left. */
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Lisp_Object direction_reversed;
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/* Non-nil means do selective display;
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see doc string in syms_of_buffer (buffer.c) for details. */
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Lisp_Object selective_display;
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#ifndef old
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/* Non-nil means show ... at end of line followed by invisible lines. */
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Lisp_Object selective_display_ellipses;
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/* Non-nil means show ... at end of line followed by invisible lines. */
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Lisp_Object selective_display_ellipses;
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#endif
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/* Alist of (FUNCTION . STRING) for each minor mode enabled in buffer. */
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Lisp_Object minor_modes;
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/* t if "self-insertion" should overwrite; `binary' if it should also
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overwrite newlines and tabs - for editing executables and the like. */
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Lisp_Object overwrite_mode;
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/* non-nil means abbrev mode is on. Expand abbrevs automatically. */
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Lisp_Object abbrev_mode;
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/* Display table to use for text in this buffer. */
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Lisp_Object display_table;
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/* t means the mark and region are currently active. */
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Lisp_Object mark_active;
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/* Alist of (FUNCTION . STRING) for each minor mode enabled in buffer. */
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Lisp_Object minor_modes;
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/* t if "self-insertion" should overwrite; `binary' if it should also
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overwrite newlines and tabs - for editing executables and the like. */
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Lisp_Object overwrite_mode;
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/* non-nil means abbrev mode is on. Expand abbrevs automatically. */
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Lisp_Object abbrev_mode;
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/* Display table to use for text in this buffer. */
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Lisp_Object display_table;
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/* t means the mark and region are currently active. */
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Lisp_Object mark_active;
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/* List of overlays that end at or before the current center,
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in order of end-position. */
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Lisp_Object overlays_before;
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/* List of overlays that end at or before the current center,
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in order of end-position. */
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Lisp_Object overlays_before;
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/* List of overlays that end after the current center,
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in order of start-position. */
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Lisp_Object overlays_after;
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/* List of overlays that end after the current center,
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in order of start-position. */
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Lisp_Object overlays_after;
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/* Position where the overlay lists are centered. */
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Lisp_Object overlay_center;
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/* Position where the overlay lists are centered. */
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Lisp_Object overlay_center;
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/* Non-nil means the buffer contents are regarded as multi-byte
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form of characters, not a binary code. */
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Lisp_Object enable_multibyte_characters;
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/* Non-nil means the buffer contents are regarded as multi-byte
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form of characters, not a binary code. */
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Lisp_Object enable_multibyte_characters;
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/* Coding system to be used for encoding the buffer contents on
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saving. */
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Lisp_Object buffer_file_coding_system;
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/* Coding system to be used for encoding the buffer contents on
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saving. */
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Lisp_Object buffer_file_coding_system;
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/* List of symbols naming the file format used for visited file. */
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Lisp_Object file_format;
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/* List of symbols naming the file format used for visited file. */
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Lisp_Object file_format;
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/* True if the newline position cache and width run cache are
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enabled. See search.c and indent.c. */
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Lisp_Object cache_long_line_scans;
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/* True if the newline position cache and width run cache are
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enabled. See search.c and indent.c. */
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Lisp_Object cache_long_line_scans;
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/* If the width run cache is enabled, this table contains the
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character widths width_run_cache (see above) assumes. When we
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do a thorough redisplay, we compare this against the buffer's
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current display table to see whether the display table has
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||||
affected the widths of any characters. If it has, we
|
||||
invalidate the width run cache, and re-initialize width_table. */
|
||||
Lisp_Object width_table;
|
||||
/* If the width run cache is enabled, this table contains the
|
||||
character widths width_run_cache (see above) assumes. When we
|
||||
do a thorough redisplay, we compare this against the buffer's
|
||||
current display table to see whether the display table has
|
||||
affected the widths of any characters. If it has, we
|
||||
invalidate the width run cache, and re-initialize width_table. */
|
||||
Lisp_Object width_table;
|
||||
|
||||
/* In an indirect buffer, or a buffer that is the base of an
|
||||
indirect buffer, this holds a marker that records
|
||||
PT for this buffer when the buffer is not current. */
|
||||
Lisp_Object pt_marker;
|
||||
/* In an indirect buffer, or a buffer that is the base of an
|
||||
indirect buffer, this holds a marker that records
|
||||
PT for this buffer when the buffer is not current. */
|
||||
Lisp_Object pt_marker;
|
||||
|
||||
/* In an indirect buffer, or a buffer that is the base of an
|
||||
indirect buffer, this holds a marker that records
|
||||
BEGV for this buffer when the buffer is not current. */
|
||||
Lisp_Object begv_marker;
|
||||
/* In an indirect buffer, or a buffer that is the base of an
|
||||
indirect buffer, this holds a marker that records
|
||||
BEGV for this buffer when the buffer is not current. */
|
||||
Lisp_Object begv_marker;
|
||||
|
||||
/* In an indirect buffer, or a buffer that is the base of an
|
||||
indirect buffer, this holds a marker that records
|
||||
ZV for this buffer when the buffer is not current. */
|
||||
Lisp_Object zv_marker;
|
||||
/* In an indirect buffer, or a buffer that is the base of an
|
||||
indirect buffer, this holds a marker that records
|
||||
ZV for this buffer when the buffer is not current. */
|
||||
Lisp_Object zv_marker;
|
||||
|
||||
/* This holds the point value before the last scroll operation.
|
||||
Explicitly setting point sets this to nil. */
|
||||
Lisp_Object point_before_scroll;
|
||||
/* This holds the point value before the last scroll operation.
|
||||
Explicitly setting point sets this to nil. */
|
||||
Lisp_Object point_before_scroll;
|
||||
|
||||
/* Truename of the visited file, or nil. */
|
||||
Lisp_Object file_truename;
|
||||
/* Truename of the visited file, or nil. */
|
||||
Lisp_Object file_truename;
|
||||
|
||||
/* Invisibility spec of this buffer.
|
||||
t => any non-nil `invisible' property means invisible.
|
||||
A list => `invisible' property means invisible
|
||||
if it is memq in that list. */
|
||||
Lisp_Object invisibility_spec;
|
||||
/* Invisibility spec of this buffer.
|
||||
t => any non-nil `invisible' property means invisible.
|
||||
A list => `invisible' property means invisible
|
||||
if it is memq in that list. */
|
||||
Lisp_Object invisibility_spec;
|
||||
|
||||
/* This is the last window that was selected with this buffer in it,
|
||||
or nil if that window no longer displays this buffer. */
|
||||
Lisp_Object last_selected_window;
|
||||
/* This is the last window that was selected with this buffer in it,
|
||||
or nil if that window no longer displays this buffer. */
|
||||
Lisp_Object last_selected_window;
|
||||
|
||||
/* Incremented each time the buffer is displayed in a window. */
|
||||
Lisp_Object display_count;
|
||||
/* Incremented each time the buffer is displayed in a window. */
|
||||
Lisp_Object display_count;
|
||||
|
||||
/* Widths of left and right marginal areas for windows displaying
|
||||
this buffer. */
|
||||
Lisp_Object left_margin_width, right_margin_width;
|
||||
/* Widths of left and right marginal areas for windows displaying
|
||||
this buffer. */
|
||||
Lisp_Object left_margin_width, right_margin_width;
|
||||
|
||||
/* Non-nil means indicate lines not displaying text (in a style
|
||||
like vi). */
|
||||
Lisp_Object indicate_empty_lines;
|
||||
/* Non-nil means indicate lines not displaying text (in a style
|
||||
like vi). */
|
||||
Lisp_Object indicate_empty_lines;
|
||||
|
||||
/* Time stamp updated each time this buffer is displayed in a window. */
|
||||
Lisp_Object display_time;
|
||||
/* Time stamp updated each time this buffer is displayed in a window. */
|
||||
Lisp_Object display_time;
|
||||
|
||||
/* If scrolling the display because point is below the bottom of a
|
||||
window showing this buffer, try to choose a window start so
|
||||
that point ends up this number of lines from the top of the
|
||||
window. Nil means that scrolling method isn't used. */
|
||||
Lisp_Object scroll_up_aggressively;
|
||||
/* If scrolling the display because point is below the bottom of a
|
||||
window showing this buffer, try to choose a window start so
|
||||
that point ends up this number of lines from the top of the
|
||||
window. Nil means that scrolling method isn't used. */
|
||||
Lisp_Object scroll_up_aggressively;
|
||||
|
||||
/* If scrolling the display because point is above the top of a
|
||||
window showing this buffer, try to choose a window start so
|
||||
that point ends up this number of lines from the bottom of the
|
||||
window. Nil means that scrolling method isn't used. */
|
||||
Lisp_Object scroll_down_aggressively;
|
||||
/* If scrolling the display because point is above the top of a
|
||||
window showing this buffer, try to choose a window start so
|
||||
that point ends up this number of lines from the bottom of the
|
||||
window. Nil means that scrolling method isn't used. */
|
||||
Lisp_Object scroll_down_aggressively;
|
||||
|
||||
Lisp_Object cursor_type;
|
||||
/* Desired cursor type in this buffer. See the doc string of
|
||||
per-buffer variable `cursor-type'. */
|
||||
Lisp_Object cursor_type;
|
||||
|
||||
/* An integer > 0 means put that number of pixels below text lines
|
||||
in the display of this buffer. */
|
||||
Lisp_Object extra_line_spacing;
|
||||
};
|
||||
|
||||
/* These are so we don't have to recompile everything
|
||||
the next few times we add a new slot. */
|
||||
Lisp_Object extra2, extra3;
|
||||
};
|
||||
|
||||
/* This points to the current buffer. */
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user