diff options
Diffstat (limited to 'src/nvim/undo_defs.h')
| -rw-r--r-- | src/nvim/undo_defs.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/nvim/undo_defs.h b/src/nvim/undo_defs.h new file mode 100644 index 0000000000..f1e6c83c32 --- /dev/null +++ b/src/nvim/undo_defs.h @@ -0,0 +1,68 @@ +#ifndef NEOVIM_UNDO_DEFS_H +#define NEOVIM_UNDO_DEFS_H + +#include "pos.h" + +/* Structure to store info about the Visual area. */ +typedef struct { + pos_T vi_start; /* start pos of last VIsual */ + pos_T vi_end; /* end position of last VIsual */ + int vi_mode; /* VIsual_mode of last VIsual */ + colnr_T vi_curswant; /* MAXCOL from w_curswant */ +} visualinfo_T; + +typedef struct u_entry u_entry_T; +typedef struct u_header u_header_T; +struct u_entry { + u_entry_T *ue_next; /* pointer to next entry in list */ + linenr_T ue_top; /* number of line above undo block */ + linenr_T ue_bot; /* number of line below undo block */ + linenr_T ue_lcount; /* linecount when u_save called */ + char_u **ue_array; /* array of lines in undo block */ + long ue_size; /* number of lines in ue_array */ +#ifdef U_DEBUG + int ue_magic; /* magic number to check allocation */ +#endif +}; + +struct u_header { + /* The following have a pointer and a number. The number is used when + * reading the undo file in u_read_undo() */ + union { + u_header_T *ptr; /* pointer to next undo header in list */ + long seq; + } uh_next; + union { + u_header_T *ptr; /* pointer to previous header in list */ + long seq; + } uh_prev; + union { + u_header_T *ptr; /* pointer to next header for alt. redo */ + long seq; + } uh_alt_next; + union { + u_header_T *ptr; /* pointer to previous header for alt. redo */ + long seq; + } uh_alt_prev; + long uh_seq; /* sequence number, higher == newer undo */ + int uh_walk; /* used by undo_time() */ + u_entry_T *uh_entry; /* pointer to first entry */ + u_entry_T *uh_getbot_entry; /* pointer to where ue_bot must be set */ + pos_T uh_cursor; /* cursor position before saving */ + long uh_cursor_vcol; + int uh_flags; /* see below */ + pos_T uh_namedm[NMARKS]; /* marks before undo/after redo */ + visualinfo_T uh_visual; /* Visual areas before undo/after redo */ + time_t uh_time; /* timestamp when the change was made */ + long uh_save_nr; /* set when the file was saved after the + changes in this block */ +#ifdef U_DEBUG + int uh_magic; /* magic number to check allocation */ +#endif +}; + +/* values for uh_flags */ +#define UH_CHANGED 0x01 /* b_changed flag before undo/after redo */ +#define UH_EMPTYBUF 0x02 /* buffer was empty */ + +#endif // NEOVIM_UNDO_DEFS_H |