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dea2731184
Resolves #1753. https://code.google.com/p/vim/source/detail?r=v7-4-399 Reviewed-by: Felipe Oliveira Carvalho <felipekde@gmail.com> Helped-by: David Bürgin <676c7473@gmail.com> Helped-by: Scott Prager <splinterofchaos@gmail.com> Helped-by: Michael Reed <m.reed@mykolab.com> Helped-by: Felipe Oliveira Carvalho <felipekde@gmail.com>
78 lines
2.8 KiB
C
78 lines
2.8 KiB
C
#ifndef NVIM_UNDO_DEFS_H
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#define NVIM_UNDO_DEFS_H
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#include <time.h> // for time_t
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#include "nvim/pos.h"
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#include "nvim/buffer_defs.h"
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/* Structure to store info about the Visual area. */
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typedef struct {
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pos_T vi_start; /* start pos of last VIsual */
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pos_T vi_end; /* end position of last VIsual */
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int vi_mode; /* VIsual_mode of last VIsual */
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colnr_T vi_curswant; /* MAXCOL from w_curswant */
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} visualinfo_T;
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typedef struct u_entry u_entry_T;
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typedef struct u_header u_header_T;
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struct u_entry {
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u_entry_T *ue_next; /* pointer to next entry in list */
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linenr_T ue_top; /* number of line above undo block */
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linenr_T ue_bot; /* number of line below undo block */
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linenr_T ue_lcount; /* linecount when u_save called */
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char_u **ue_array; /* array of lines in undo block */
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long ue_size; /* number of lines in ue_array */
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#ifdef U_DEBUG
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int ue_magic; /* magic number to check allocation */
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#endif
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};
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struct u_header {
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/* The following have a pointer and a number. The number is used when
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* reading the undo file in u_read_undo() */
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union {
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u_header_T *ptr; /* pointer to next undo header in list */
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long seq;
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} uh_next;
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union {
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u_header_T *ptr; /* pointer to previous header in list */
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long seq;
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} uh_prev;
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union {
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u_header_T *ptr; /* pointer to next header for alt. redo */
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long seq;
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} uh_alt_next;
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union {
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u_header_T *ptr; /* pointer to previous header for alt. redo */
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long seq;
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} uh_alt_prev;
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long uh_seq; /* sequence number, higher == newer undo */
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int uh_walk; /* used by undo_time() */
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u_entry_T *uh_entry; /* pointer to first entry */
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u_entry_T *uh_getbot_entry; /* pointer to where ue_bot must be set */
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pos_T uh_cursor; /* cursor position before saving */
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long uh_cursor_vcol;
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int uh_flags; /* see below */
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pos_T uh_namedm[NMARKS]; /* marks before undo/after redo */
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visualinfo_T uh_visual; /* Visual areas before undo/after redo */
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time_t uh_time; /* timestamp when the change was made */
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long uh_save_nr; /* set when the file was saved after the
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changes in this block */
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#ifdef U_DEBUG
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int uh_magic; /* magic number to check allocation */
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#endif
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};
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/* values for uh_flags */
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#define UH_CHANGED 0x01 /* b_changed flag before undo/after redo */
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#define UH_EMPTYBUF 0x02 /* buffer was empty */
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/// Structure passed around between undofile functions.
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typedef struct {
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buf_T *bi_buf;
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FILE *bi_fp;
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} bufinfo_T;
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#endif // NVIM_UNDO_DEFS_H
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