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Add file save counter to undo information. Add undotree() function.

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This commit is contained in:
Bram Moolenaar
2010-06-27 01:15:55 +02:00
parent d69980f9dd
commit a800b42975
15 changed files with 355 additions and 63 deletions
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4
src/structs.h
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@@ -327,6 +327,7 @@ struct u_header
visualinfo_T uh_visual; /* Visual areas before undo/after redo */
#endif
time_t uh_time; /* timestamp when the change was made */
long_u uh_save_nr; /* counter for last time saved */
#ifdef U_DEBUG
int uh_magic; /* magic number to check allocation */
#endif
@@ -1371,7 +1372,8 @@ struct file_buffer
int b_u_synced; /* entry lists are synced */
long b_u_seq_last; /* last used undo sequence number */
long b_u_seq_cur; /* hu_seq of header below which we are now */
time_t b_u_seq_time; /* uh_time of header below which we are now */
time_t b_u_time_cur; /* uh_time of header below which we are now */
long_u b_u_last_save_nr; /* counter for last file write */
/*
* variables for "U" command in undo.c