Delete structs.h by spliting it and moving code to other headers

Here's the list of squashed commits (for more info, see PR #378).

 - Define guicolor_T as a typedef in syntax.h
 - Move a big chunk of code from structs.h to buffer_defs.h
 - Move aco_save_T from structs.h to fileio.h
 - Move option_table_T from structs.h to hardcopy.h

	Aditionally:

	 - Move the printer_opts global to hardcopy.c
	 - Delete structs.h. Include buffer_defs.h where structs.h was included
	   before.
	 - Add header guards to option_defs.h

 - Put mark types and constants in new mark_defs.h
 - Move undo structs to undo_defs.h
 - Move memfile structs to new memfile_defs.h
 - Move expand_T and cmdmod_T to ex_cmds_defs.h
 - Move memline_T to memline_defs.h
 - Move many defs and types to ex_eval.h
 - Move syntax related types to syntax_defs.h
 - Move struct memfile to memfile_defs.h
 - struct buffblock and struct buffheader moved back to buffer_defs.h
 - Move some datatypes to hashtab.h and eval_defs.h
 - Move the buffer_defs.h include and TODOs for remaining unrelated types in buffer_defs.h

1 files changed, 44 insertions, 0 deletions

diff --git a/src/ex_cmds_defs.h b/src/ex_cmds_defs.h
index 8b6c7c866e..3b173341e1 100644
--- a/src/ex_cmds_defs.h
+++ b/src/ex_cmds_defs.h
@@ -1190,4 +1190,48 @@ struct exarg {
 #define EXFLAG_NR       0x02    /* '#': number */
 #define EXFLAG_PRINT    0x04    /* 'p': print */
 
+/*
+ * used for completion on the command line
+ */
+typedef struct expand {
+  int xp_context;                       /* type of expansion */
+  char_u      *xp_pattern;              /* start of item to expand */
+  int xp_pattern_len;                   /* bytes in xp_pattern before cursor */
+  char_u      *xp_arg;                  /* completion function */
+  int xp_scriptID;                      /* SID for completion function */
+  int xp_backslash;                     /* one of the XP_BS_ values */
+#ifndef BACKSLASH_IN_FILENAME
+  int xp_shell;                         /* TRUE for a shell command, more
+                                           characters need to be escaped */
+#endif
+  int xp_numfiles;                      /* number of files found by
+                                                    file name completion */
+  char_u      **xp_files;               /* list of files */
+  char_u      *xp_line;                 /* text being completed */
+  int xp_col;                           /* cursor position in line */
+} expand_T;
+
+/* values for xp_backslash */
+#define XP_BS_NONE      0       /* nothing special for backslashes */
+#define XP_BS_ONE       1       /* uses one backslash before a space */
+#define XP_BS_THREE     2       /* uses three backslashes before a space */
+
+/*
+ * Command modifiers ":vertical", ":browse", ":confirm" and ":hide" set a flag.
+ * This needs to be saved for recursive commands, put them in a structure for
+ * easy manipulation.
+ */
+typedef struct {
+  int hide;                             /* TRUE when ":hide" was used */
+  int split;                            /* flags for win_split() */
+  int tab;                              /* > 0 when ":tab" was used */
+  int confirm;                          /* TRUE to invoke yes/no dialog */
+  int keepalt;                          /* TRUE when ":keepalt" was used */
+  int keepmarks;                        /* TRUE when ":keepmarks" was used */
+  int keepjumps;                        /* TRUE when ":keepjumps" was used */
+  int lockmarks;                        /* TRUE when ":lockmarks" was used */
+  int keeppatterns;                     /* TRUE when ":keeppatterns" was used */
+  char_u      *save_ei;                 /* saved value of 'eventignore' */
+} cmdmod_T;
+
 #endif