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+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * VIM - Vi IMproved by Bram Moolenaar
+ *
+ * Do ":help uganda" in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ */
+
+/*
+ * This file contains various definitions of structures that are used by Vim
+ */
+
+/*
+ * There is something wrong in the SAS compiler that makes typedefs not
+ * valid in include files. Has been fixed in version 6.58.
+ */
+#if defined(SASC) && SASC < 658
+typedef long linenr_T;
+typedef int colnr_T;
+typedef unsigned short short_u;
+#endif
+
+/*
+ * Position in file or buffer.
+ */
+typedef struct
+{
+ linenr_T lnum; // line number
+ colnr_T col; // column number
+ colnr_T coladd; // extra virtual column
+} pos_T;
+
+
+/*
+ * Same, but without coladd.
+ */
+typedef struct
+{
+ linenr_T lnum; // line number
+ colnr_T col; // column number
+} lpos_T;
+
+/*
+ * Structure used for growing arrays.
+ * This is used to store information that only grows, is deleted all at
+ * once, and needs to be accessed by index. See ga_clear() and ga_grow().
+ */
+typedef struct growarray
+{
+ int ga_len; /* current number of items used */
+ int ga_maxlen; /* maximum number of items possible */
+ int ga_itemsize; /* sizeof(item) */
+ int ga_growsize; /* number of items to grow each time */
+ void *ga_data; /* pointer to the first item */
+} garray_T;
+
+#define GA_EMPTY {0, 0, 0, 0, NULL}
+
+typedef struct window_S win_T;
+typedef struct wininfo_S wininfo_T;
+typedef struct frame_S frame_T;
+typedef int scid_T; /* script ID */
+typedef struct file_buffer buf_T; /* forward declaration */
+typedef struct terminal_S term_T;
+
+#ifdef FEAT_MENU
+typedef struct VimMenu vimmenu_T;
+#endif
+
+/*
+ * SCript ConteXt (SCTX): identifies a script script line.
+ * When sourcing a script "sc_lnum" is zero, "sourcing_lnum" is the current
+ * line number. When executing a user function "sc_lnum" is the line where the
+ * function was defined, "sourcing_lnum" is the line number inside the
+ * function. When stored with a function, mapping, option, etc. "sc_lnum" is
+ * the line number in the script "sc_sid".
+ */
+typedef struct {
+ scid_T sc_sid; // script ID
+ int sc_seq; // sourcing sequence number
+ linenr_T sc_lnum; // line number
+} sctx_T;
+
+/*
+ * Reference to a buffer that stores the value of buf_free_count.
+ * bufref_valid() only needs to check "buf" when the count differs.
+ */
+typedef struct {
+ buf_T *br_buf;
+ int br_fnum;
+ int br_buf_free_count;
+} bufref_T;
+
+/*
+ * This is here because regexp.h needs pos_T and below regprog_T is used.
+ */
+#include "regexp.h"
+
+/*
+ * This is here because gui.h needs the pos_T and win_T, and win_T needs gui.h
+ * for scrollbar_T.
+ */
+#ifdef FEAT_GUI
+# include "gui.h"
+#else
+# ifdef FEAT_XCLIPBOARD
+# include <X11/Intrinsic.h>
+# endif
+# define guicolor_T long
+# define INVALCOLOR ((guicolor_T)0x1ffffff)
+ /* only used for cterm.bg_rgb and cterm.fg_rgb: use cterm color */
+# define CTERMCOLOR ((guicolor_T)0x1fffffe)
+#endif
+#define COLOR_INVALID(x) ((x) == INVALCOLOR || (x) == CTERMCOLOR)
+
+/*
+ * marks: positions in a file
+ * (a normal mark is a lnum/col pair, the same as a file position)
+ */
+
+/* (Note: for EBCDIC there are more than 26, because there are gaps in the
+ * alphabet coding. To minimize changes to the code, I decided to just
+ * increase the number of possible marks. */
+#define NMARKS ('z' - 'a' + 1) /* max. # of named marks */
+#define JUMPLISTSIZE 100 /* max. # of marks in jump list */
+#define TAGSTACKSIZE 20 /* max. # of tags in tag stack */
+
+typedef struct filemark
+{
+ pos_T mark; /* cursor position */
+ int fnum; /* file number */
+} fmark_T;
+
+/* Xtended file mark: also has a file name */
+typedef struct xfilemark
+{
+ fmark_T fmark;
+ char_u *fname; /* file name, used when fnum == 0 */
+#ifdef FEAT_VIMINFO
+ time_T time_set;
+#endif
+} xfmark_T;
+
+/*
+ * The taggy struct is used to store the information about a :tag command.
+ */
+typedef struct taggy
+{
+ char_u *tagname; /* tag name */
+ fmark_T fmark; /* cursor position BEFORE ":tag" */
+ int cur_match; /* match number */
+ int cur_fnum; /* buffer number used for cur_match */
+} taggy_T;
+
+/*
+ * Structure that contains all options that are local to a window.
+ * Used twice in a window: for the current buffer and for all buffers.
+ * Also used in wininfo_T.
+ */
+typedef struct
+{
+#ifdef FEAT_ARABIC
+ int wo_arab;
+# define w_p_arab w_onebuf_opt.wo_arab /* 'arabic' */
+#endif
+#ifdef FEAT_LINEBREAK
+ int wo_bri;
+# define w_p_bri w_onebuf_opt.wo_bri /* 'breakindent' */
+ char_u *wo_briopt;
+# define w_p_briopt w_onebuf_opt.wo_briopt /* 'breakindentopt' */
+#endif
+#ifdef FEAT_DIFF
+ int wo_diff;
+# define w_p_diff w_onebuf_opt.wo_diff /* 'diff' */
+#endif
+#ifdef FEAT_FOLDING
+ long wo_fdc;
+# define w_p_fdc w_onebuf_opt.wo_fdc /* 'foldcolumn' */
+ int wo_fdc_save;
+# define w_p_fdc_save w_onebuf_opt.wo_fdc_save /* 'foldenable' saved for diff mode */
+ int wo_fen;
+# define w_p_fen w_onebuf_opt.wo_fen /* 'foldenable' */
+ int wo_fen_save;
+# define w_p_fen_save w_onebuf_opt.wo_fen_save /* 'foldenable' saved for diff mode */
+ char_u *wo_fdi;
+# define w_p_fdi w_onebuf_opt.wo_fdi /* 'foldignore' */
+ long wo_fdl;
+# define w_p_fdl w_onebuf_opt.wo_fdl /* 'foldlevel' */
+ int wo_fdl_save;
+# define w_p_fdl_save w_onebuf_opt.wo_fdl_save /* 'foldlevel' state saved for diff mode */
+ char_u *wo_fdm;
+# define w_p_fdm w_onebuf_opt.wo_fdm /* 'foldmethod' */
+ char_u *wo_fdm_save;
+# define w_p_fdm_save w_onebuf_opt.wo_fdm_save /* 'fdm' saved for diff mode */
+ long wo_fml;
+# define w_p_fml w_onebuf_opt.wo_fml /* 'foldminlines' */
+ long wo_fdn;
+# define w_p_fdn w_onebuf_opt.wo_fdn /* 'foldnestmax' */
+# ifdef FEAT_EVAL
+ char_u *wo_fde;
+# define w_p_fde w_onebuf_opt.wo_fde /* 'foldexpr' */
+ char_u *wo_fdt;
+# define w_p_fdt w_onebuf_opt.wo_fdt /* 'foldtext' */
+# endif
+ char_u *wo_fmr;
+# define w_p_fmr w_onebuf_opt.wo_fmr /* 'foldmarker' */
+#endif
+#ifdef FEAT_LINEBREAK
+ int wo_lbr;
+# define w_p_lbr w_onebuf_opt.wo_lbr /* 'linebreak' */
+#endif
+ int wo_list;
+#define w_p_list w_onebuf_opt.wo_list /* 'list' */
+ int wo_nu;
+#define w_p_nu w_onebuf_opt.wo_nu /* 'number' */
+ int wo_rnu;
+#define w_p_rnu w_onebuf_opt.wo_rnu /* 'relativenumber' */
+#ifdef FEAT_LINEBREAK
+ long wo_nuw;
+# define w_p_nuw w_onebuf_opt.wo_nuw /* 'numberwidth' */
+#endif
+ int wo_wfh;
+# define w_p_wfh w_onebuf_opt.wo_wfh /* 'winfixheight' */
+ int wo_wfw;
+# define w_p_wfw w_onebuf_opt.wo_wfw /* 'winfixwidth' */
+#if defined(FEAT_QUICKFIX)
+ int wo_pvw;
+# define w_p_pvw w_onebuf_opt.wo_pvw /* 'previewwindow' */
+#endif
+#ifdef FEAT_RIGHTLEFT
+ int wo_rl;
+# define w_p_rl w_onebuf_opt.wo_rl /* 'rightleft' */
+ char_u *wo_rlc;
+# define w_p_rlc w_onebuf_opt.wo_rlc /* 'rightleftcmd' */
+#endif
+ long wo_scr;
+#define w_p_scr w_onebuf_opt.wo_scr /* 'scroll' */
+#ifdef FEAT_SPELL
+ int wo_spell;
+# define w_p_spell w_onebuf_opt.wo_spell /* 'spell' */
+#endif
+#ifdef FEAT_SYN_HL
+ int wo_cuc;
+# define w_p_cuc w_onebuf_opt.wo_cuc /* 'cursorcolumn' */
+ int wo_cul;
+# define w_p_cul w_onebuf_opt.wo_cul /* 'cursorline' */
+ char_u *wo_cc;
+# define w_p_cc w_onebuf_opt.wo_cc /* 'colorcolumn' */
+#endif
+#ifdef FEAT_STL_OPT
+ char_u *wo_stl;
+#define w_p_stl w_onebuf_opt.wo_stl /* 'statusline' */
+#endif
+ int wo_scb;
+#define w_p_scb w_onebuf_opt.wo_scb /* 'scrollbind' */
+ int wo_diff_saved; /* options were saved for starting diff mode */
+#define w_p_diff_saved w_onebuf_opt.wo_diff_saved
+ int wo_scb_save; /* 'scrollbind' saved for diff mode*/
+#define w_p_scb_save w_onebuf_opt.wo_scb_save
+ int wo_wrap;
+#define w_p_wrap w_onebuf_opt.wo_wrap /* 'wrap' */
+#ifdef FEAT_DIFF
+ int wo_wrap_save; /* 'wrap' state saved for diff mode*/
+# define w_p_wrap_save w_onebuf_opt.wo_wrap_save
+#endif
+#ifdef FEAT_CONCEAL
+ char_u *wo_cocu; /* 'concealcursor' */
+# define w_p_cocu w_onebuf_opt.wo_cocu
+ long wo_cole; /* 'conceallevel' */
+# define w_p_cole w_onebuf_opt.wo_cole
+#endif
+ int wo_crb;
+#define w_p_crb w_onebuf_opt.wo_crb /* 'cursorbind' */
+ int wo_crb_save; /* 'cursorbind' state saved for diff mode*/
+#define w_p_crb_save w_onebuf_opt.wo_crb_save
+#ifdef FEAT_SIGNS
+ char_u *wo_scl;
+# define w_p_scl w_onebuf_opt.wo_scl /* 'signcolumn' */
+#endif
+#ifdef FEAT_TERMINAL
+ char_u *wo_twk;
+# define w_p_twk w_onebuf_opt.wo_twk /* 'termwinkey' */
+ char_u *wo_tws;
+# define w_p_tws w_onebuf_opt.wo_tws /* 'termwinsize' */
+ char_u *wo_tmod;
+# define w_p_tmod w_onebuf_opt.wo_tmod /* 'termmode' */
+#endif
+
+#ifdef FEAT_EVAL
+ sctx_T wo_script_ctx[WV_COUNT]; /* SCTXs for window-local options */
+# define w_p_script_ctx w_onebuf_opt.wo_script_ctx
+#endif
+} winopt_T;
+
+/*
+ * Window info stored with a buffer.
+ *
+ * Two types of info are kept for a buffer which are associated with a
+ * specific window:
+ * 1. Each window can have a different line number associated with a buffer.
+ * 2. The window-local options for a buffer work in a similar way.
+ * The window-info is kept in a list at b_wininfo. It is kept in
+ * most-recently-used order.
+ */
+struct wininfo_S
+{
+ wininfo_T *wi_next; /* next entry or NULL for last entry */
+ wininfo_T *wi_prev; /* previous entry or NULL for first entry */
+ win_T *wi_win; /* pointer to window that did set wi_fpos */
+ pos_T wi_fpos; /* last cursor position in the file */
+ int wi_optset; /* TRUE when wi_opt has useful values */
+ winopt_T wi_opt; /* local window options */
+#ifdef FEAT_FOLDING
+ int wi_fold_manual; /* copy of w_fold_manual */
+ garray_T wi_folds; /* clone of w_folds */
+#endif
+};
+
+/*
+ * Info used to pass info about a fold from the fold-detection code to the
+ * code that displays the foldcolumn.
+ */
+typedef struct foldinfo
+{
+ int fi_level; /* level of the fold; when this is zero the
+ other fields are invalid */
+ int fi_lnum; /* line number where fold starts */
+ int fi_low_level; /* lowest fold level that starts in the same
+ line */
+} foldinfo_T;
+
+/* 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;
+
+/*
+ * structures used for undo
+ */
+
+// One line saved for undo. After the NUL terminated text there might be text
+// properties, thus ul_len can be larger than STRLEN(ul_line) + 1.
+typedef struct {
+ char_u *ul_line; // text of the line
+ long ul_len; // length of the line including NUL, plus text
+ // properties
+} undoline_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 */
+ undoline_T *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 */
+
+/*
+ * structures used in undo.c
+ */
+#define ALIGN_LONG /* longword alignment and use filler byte */
+#define ALIGN_SIZE (sizeof(long))
+
+#define ALIGN_MASK (ALIGN_SIZE - 1)
+
+typedef struct m_info minfo_T;
+
+/*
+ * structure used to link chunks in one of the free chunk lists.
+ */
+struct m_info
+{
+#ifdef ALIGN_LONG
+ long_u m_size; /* size of the chunk (including m_info) */
+#else
+ short_u m_size; /* size of the chunk (including m_info) */
+#endif
+ minfo_T *m_next; /* pointer to next free chunk in the list */
+};
+
+/*
+ * things used in memfile.c
+ */
+
+typedef struct block_hdr bhdr_T;
+typedef struct memfile memfile_T;
+typedef long blocknr_T;
+
+/*
+ * mf_hashtab_T is a chained hashtable with blocknr_T key and arbitrary
+ * structures as items. This is an intrusive data structure: we require
+ * that items begin with mf_hashitem_T which contains the key and linked
+ * list pointers. List of items in each bucket is doubly-linked.
+ */
+
+typedef struct mf_hashitem_S mf_hashitem_T;
+
+struct mf_hashitem_S
+{
+ mf_hashitem_T *mhi_next;
+ mf_hashitem_T *mhi_prev;
+ blocknr_T mhi_key;
+};
+
+#define MHT_INIT_SIZE 64
+
+typedef struct mf_hashtab_S
+{
+ long_u mht_mask; /* mask used for hash value (nr of items
+ * in array is "mht_mask" + 1) */
+ long_u mht_count; /* nr of items inserted into hashtable */
+ mf_hashitem_T **mht_buckets; /* points to mht_small_buckets or
+ *dynamically allocated array */
+ mf_hashitem_T *mht_small_buckets[MHT_INIT_SIZE]; /* initial buckets */
+ char mht_fixed; /* non-zero value forbids growth */
+} mf_hashtab_T;
+
+/*
+ * for each (previously) used block in the memfile there is one block header.
+ *
+ * The block may be linked in the used list OR in the free list.
+ * The used blocks are also kept in hash lists.
+ *
+ * The used list is a doubly linked list, most recently used block first.
+ * The blocks in the used list have a block of memory allocated.
+ * mf_used_count is the number of pages in the used list.
+ * The hash lists are used to quickly find a block in the used list.
+ * The free list is a single linked list, not sorted.
+ * The blocks in the free list have no block of memory allocated and
+ * the contents of the block in the file (if any) is irrelevant.
+ */
+
+struct block_hdr
+{
+ mf_hashitem_T bh_hashitem; /* header for hash table and key */
+#define bh_bnum bh_hashitem.mhi_key /* block number, part of bh_hashitem */
+
+ bhdr_T *bh_next; /* next block_hdr in free or used list */
+ bhdr_T *bh_prev; /* previous block_hdr in used list */
+ char_u *bh_data; /* pointer to memory (for used block) */
+ int bh_page_count; /* number of pages in this block */
+
+#define BH_DIRTY 1
+#define BH_LOCKED 2
+ char bh_flags; /* BH_DIRTY or BH_LOCKED */
+};
+
+/*
+ * when a block with a negative number is flushed to the file, it gets
+ * a positive number. Because the reference to the block is still the negative
+ * number, we remember the translation to the new positive number in the
+ * double linked trans lists. The structure is the same as the hash lists.
+ */
+typedef struct nr_trans NR_TRANS;
+
+struct nr_trans
+{
+ mf_hashitem_T nt_hashitem; /* header for hash table and key */
+#define nt_old_bnum nt_hashitem.mhi_key /* old, negative, number */
+
+ blocknr_T nt_new_bnum; /* new, positive, number */
+};
+
+
+typedef struct buffblock buffblock_T;
+typedef struct buffheader buffheader_T;
+
+/*
+ * structure used to store one block of the stuff/redo/recording buffers
+ */
+struct buffblock
+{
+ buffblock_T *b_next; /* pointer to next buffblock */
+ char_u b_str[1]; /* contents (actually longer) */
+};
+
+/*
+ * header used for the stuff buffer and the redo buffer
+ */
+struct buffheader
+{
+ buffblock_T bh_first; /* first (dummy) block of list */
+ buffblock_T *bh_curr; /* buffblock for appending */
+ int bh_index; /* index for reading */
+ int bh_space; /* space in bh_curr for appending */
+};
+
+typedef struct
+{
+ buffheader_T sr_redobuff;
+ buffheader_T sr_old_redobuff;
+} save_redo_T;
+
+/*
+ * 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 */
+#if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL) && defined(FEAT_CMDL_COMPL)
+ char_u *xp_arg; /* completion function */
+ sctx_T xp_script_ctx; /* SCTX for completion function */
+#endif
+ 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 */
+# ifdef FEAT_BROWSE_CMD
+ int browse; /* TRUE to invoke file dialog */
+# endif
+ int split; /* flags for win_split() */
+ int tab; /* > 0 when ":tab" was used */
+# if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
+ int confirm; /* TRUE to invoke yes/no dialog */
+# endif
+ 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 */
+ int noswapfile; /* TRUE when ":noswapfile" was used */
+ char_u *save_ei; /* saved value of 'eventignore' */
+ regmatch_T filter_regmatch; /* set by :filter /pat/ */
+ int filter_force; /* set for :filter! */
+} cmdmod_T;
+
+#define MF_SEED_LEN 8
+
+struct memfile
+{
+ char_u *mf_fname; /* name of the file */
+ char_u *mf_ffname; /* idem, full path */
+ int mf_fd; /* file descriptor */
+ bhdr_T *mf_free_first; /* first block_hdr in free list */
+ bhdr_T *mf_used_first; /* mru block_hdr in used list */
+ bhdr_T *mf_used_last; /* lru block_hdr in used list */
+ unsigned mf_used_count; /* number of pages in used list */
+ unsigned mf_used_count_max; /* maximum number of pages in memory */
+ mf_hashtab_T mf_hash; /* hash lists */
+ mf_hashtab_T mf_trans; /* trans lists */
+ blocknr_T mf_blocknr_max; /* highest positive block number + 1*/
+ blocknr_T mf_blocknr_min; /* lowest negative block number - 1 */
+ blocknr_T mf_neg_count; /* number of negative blocks numbers */
+ blocknr_T mf_infile_count; /* number of pages in the file */
+ unsigned mf_page_size; /* number of bytes in a page */
+ int mf_dirty; /* TRUE if there are dirty blocks */
+#ifdef FEAT_CRYPT
+ buf_T *mf_buffer; /* buffer this memfile is for */
+ char_u mf_seed[MF_SEED_LEN]; /* seed for encryption */
+
+ /* Values for key, method and seed used for reading data blocks when
+ * updating for a newly set key or method. Only when mf_old_key != NULL. */
+ char_u *mf_old_key;
+ int mf_old_cm;
+ char_u mf_old_seed[MF_SEED_LEN];
+#endif
+};
+
+/*
+ * things used in memline.c
+ */
+/*
+ * When searching for a specific line, we remember what blocks in the tree
+ * are the branches leading to that block. This is stored in ml_stack. Each
+ * entry is a pointer to info in a block (may be data block or pointer block)
+ */
+typedef struct info_pointer
+{
+ blocknr_T ip_bnum; /* block number */
+ linenr_T ip_low; /* lowest lnum in this block */
+ linenr_T ip_high; /* highest lnum in this block */
+ int ip_index; /* index for block with current lnum */
+} infoptr_T; /* block/index pair */
+
+#ifdef FEAT_BYTEOFF
+typedef struct ml_chunksize
+{
+ int mlcs_numlines;
+ long mlcs_totalsize;
+} chunksize_T;
+
+ /* Flags when calling ml_updatechunk() */
+
+#define ML_CHNK_ADDLINE 1
+#define ML_CHNK_DELLINE 2
+#define ML_CHNK_UPDLINE 3
+#endif
+
+/*
+ * the memline structure holds all the information about a memline
+ */
+typedef struct memline
+{
+ linenr_T ml_line_count; /* number of lines in the buffer */
+
+ memfile_T *ml_mfp; /* pointer to associated memfile */
+
+#define ML_EMPTY 1 /* empty buffer */
+#define ML_LINE_DIRTY 2 /* cached line was changed and allocated */
+#define ML_LOCKED_DIRTY 4 /* ml_locked was changed */
+#define ML_LOCKED_POS 8 /* ml_locked needs positive block number */
+ int ml_flags;
+
+ infoptr_T *ml_stack; /* stack of pointer blocks (array of IPTRs) */
+ int ml_stack_top; /* current top of ml_stack */
+ int ml_stack_size; /* total number of entries in ml_stack */
+
+ linenr_T ml_line_lnum; /* line number of cached line, 0 if not valid */
+ char_u *ml_line_ptr; /* pointer to cached line */
+ colnr_T ml_line_len; /* length of the cached line, including NUL */
+
+ bhdr_T *ml_locked; /* block used by last ml_get */
+ linenr_T ml_locked_low; /* first line in ml_locked */
+ linenr_T ml_locked_high; /* last line in ml_locked */
+ int ml_locked_lineadd; /* number of lines inserted in ml_locked */
+#ifdef FEAT_BYTEOFF
+ chunksize_T *ml_chunksize;
+ int ml_numchunks;
+ int ml_usedchunks;
+#endif
+} memline_T;
+
+
+/*
+ * Structure defining text properties. These stick with the text.
+ * When stored in memline they are after the text, ml_line_len is larger than
+ * STRLEN(ml_line_ptr) + 1.
+ */
+typedef struct textprop_S
+{
+ colnr_T tp_col; // start column (one based, in bytes)
+ colnr_T tp_len; // length in bytes
+ int tp_id; // identifier
+ int tp_type; // property type
+ int tp_flags; // TP_FLAG_ values
+} textprop_T;
+
+#define TP_FLAG_CONT_NEXT 1 // property continues in next line
+#define TP_FLAG_CONT_PREV 2 // property was continued from prev line
+
+/*
+ * Structure defining a property type.
+ */
+typedef struct proptype_S
+{
+ int pt_id; // value used for tp_id
+ int pt_type; // number used for tp_type
+ int pt_hl_id; // highlighting
+ int pt_priority; // priority
+ int pt_flags; // PT_FLAG_ values
+ char_u pt_name[1]; // property type name, actually longer
+} proptype_T;
+
+#define PT_FLAG_INS_START_INCL 1 // insert at start included in property
+#define PT_FLAG_INS_END_INCL 2 // insert at end included in property
+
+// Sign group
+typedef struct signgroup_S
+{
+ short_u refcount; // number of signs in this group
+ int next_sign_id; // next sign id for this group
+ char_u sg_name[1]; // sign group name
+} signgroup_T;
+
+typedef struct signlist signlist_T;
+
+struct signlist
+{
+ int id; /* unique identifier for each placed sign */
+ linenr_T lnum; /* line number which has this sign */
+ int typenr; /* typenr of sign */
+ signgroup_T *group; /* sign group */
+ int priority; /* priority for highlighting */
+ signlist_T *next; /* next signlist entry */
+ signlist_T *prev; /* previous entry -- for easy reordering */
+};
+
+#if defined(FEAT_SIGNS) || defined(PROTO)
+// Macros to get the sign group structure from the group name
+#define SGN_KEY_OFF offsetof(signgroup_T, sg_name)
+#define HI2SG(hi) ((signgroup_T *)((hi)->hi_key - SGN_KEY_OFF))
+
+// Default sign priority for highlighting
+#define SIGN_DEF_PRIO 10
+
+/* type argument for buf_getsigntype() */
+#define SIGN_ANY 0
+#define SIGN_LINEHL 1
+#define SIGN_ICON 2
+#define SIGN_TEXT 3
+#endif
+
+/*
+ * Argument list: Array of file names.
+ * Used for the global argument list and the argument lists local to a window.
+ */
+typedef struct arglist
+{
+ garray_T al_ga; /* growarray with the array of file names */
+ int al_refcount; /* number of windows using this arglist */
+ int id; /* id of this arglist */
+} alist_T;
+
+/*
+ * For each argument remember the file name as it was given, and the buffer
+ * number that contains the expanded file name (required for when ":cd" is
+ * used.
+ */
+typedef struct argentry
+{
+ char_u *ae_fname; /* file name as specified */
+ int ae_fnum; /* buffer number with expanded file name */
+} aentry_T;
+
+#define ALIST(win) (win)->w_alist
+#define GARGLIST ((aentry_T *)global_alist.al_ga.ga_data)
+#define ARGLIST ((aentry_T *)ALIST(curwin)->al_ga.ga_data)
+#define WARGLIST(wp) ((aentry_T *)ALIST(wp)->al_ga.ga_data)
+#define AARGLIST(al) ((aentry_T *)((al)->al_ga.ga_data))
+#define GARGCOUNT (global_alist.al_ga.ga_len)
+#define ARGCOUNT (ALIST(curwin)->al_ga.ga_len)
+#define WARGCOUNT(wp) (ALIST(wp)->al_ga.ga_len)
+
+/*
+ * A list used for saving values of "emsg_silent". Used by ex_try() to save the
+ * value of "emsg_silent" if it was non-zero. When this is done, the CSF_SILENT
+ * flag below is set.
+ */
+
+typedef struct eslist_elem eslist_T;
+struct eslist_elem
+{
+ int saved_emsg_silent; /* saved value of "emsg_silent" */
+ eslist_T *next; /* next element on the list */
+};
+
+/*
+ * For conditional commands a stack is kept of nested conditionals.
+ * When cs_idx < 0, there is no conditional command.
+ */
+#define CSTACK_LEN 50
+
+struct condstack
+{
+ short cs_flags[CSTACK_LEN]; /* CSF_ flags */
+ char cs_pending[CSTACK_LEN]; /* CSTP_: what's pending in ":finally"*/
+ union {
+ void *csp_rv[CSTACK_LEN]; /* return typeval for pending return */
+ void *csp_ex[CSTACK_LEN]; /* exception for pending throw */
+ } cs_pend;
+ void *cs_forinfo[CSTACK_LEN]; /* info used by ":for" */
+ int cs_line[CSTACK_LEN]; /* line nr of ":while"/":for" line */
+ int cs_idx; /* current entry, or -1 if none */
+ int cs_looplevel; /* nr of nested ":while"s and ":for"s */
+ int cs_trylevel; /* nr of nested ":try"s */
+ eslist_T *cs_emsg_silent_list; /* saved values of "emsg_silent" */
+ char cs_lflags; /* loop flags: CSL_ flags */
+};
+# define cs_rettv cs_pend.csp_rv
+# define cs_exception cs_pend.csp_ex
+
+/* There is no CSF_IF, the lack of CSF_WHILE, CSF_FOR and CSF_TRY means ":if"
+ * was used. */
+# define CSF_TRUE 0x0001 /* condition was TRUE */
+# define CSF_ACTIVE 0x0002 /* current state is active */
+# define CSF_ELSE 0x0004 /* ":else" has been passed */
+# define CSF_WHILE 0x0008 /* is a ":while" */
+# define CSF_FOR 0x0010 /* is a ":for" */
+
+# define CSF_TRY 0x0100 /* is a ":try" */
+# define CSF_FINALLY 0x0200 /* ":finally" has been passed */
+# define CSF_THROWN 0x0400 /* exception thrown to this try conditional */
+# define CSF_CAUGHT 0x0800 /* exception caught by this try conditional */
+# define CSF_SILENT 0x1000 /* "emsg_silent" reset by ":try" */
+/* Note that CSF_ELSE is only used when CSF_TRY and CSF_WHILE are unset
+ * (an ":if"), and CSF_SILENT is only used when CSF_TRY is set. */
+
+/*
+ * What's pending for being reactivated at the ":endtry" of this try
+ * conditional:
+ */
+# define CSTP_NONE 0 /* nothing pending in ":finally" clause */
+# define CSTP_ERROR 1 /* an error is pending */
+# define CSTP_INTERRUPT 2 /* an interrupt is pending */
+# define CSTP_THROW 4 /* a throw is pending */
+# define CSTP_BREAK 8 /* ":break" is pending */
+# define CSTP_CONTINUE 16 /* ":continue" is pending */
+# define CSTP_RETURN 24 /* ":return" is pending */
+# define CSTP_FINISH 32 /* ":finish" is pending */
+
+/*
+ * Flags for the cs_lflags item in struct condstack.
+ */
+# define CSL_HAD_LOOP 1 /* just found ":while" or ":for" */
+# define CSL_HAD_ENDLOOP 2 /* just found ":endwhile" or ":endfor" */
+# define CSL_HAD_CONT 4 /* just found ":continue" */
+# define CSL_HAD_FINA 8 /* just found ":finally" */
+
+/*
+ * A list of error messages that can be converted to an exception. "throw_msg"
+ * is only set in the first element of the list. Usually, it points to the
+ * original message stored in that element, but sometimes it points to a later
+ * message in the list. See cause_errthrow() below.
+ */
+struct msglist
+{
+ char *msg; /* original message */
+ char *throw_msg; /* msg to throw: usually original one */
+ struct msglist *next; /* next of several messages in a row */
+};
+
+/*
+ * The exception types.
+ */
+typedef enum
+{
+ ET_USER, // exception caused by ":throw" command
+ ET_ERROR, // error exception
+ ET_INTERRUPT, // interrupt exception triggered by Ctrl-C
+} except_type_T;
+
+/*
+ * Structure describing an exception.
+ * (don't use "struct exception", it's used by the math library).
+ */
+typedef struct vim_exception except_T;
+struct vim_exception
+{
+ except_type_T type; /* exception type */
+ char *value; /* exception value */
+ struct msglist *messages; /* message(s) causing error exception */
+ char_u *throw_name; /* name of the throw point */
+ linenr_T throw_lnum; /* line number of the throw point */
+ except_T *caught; /* next exception on the caught stack */
+};
+
+/*
+ * Structure to save the error/interrupt/exception state between calls to
+ * enter_cleanup() and leave_cleanup(). Must be allocated as an automatic
+ * variable by the (common) caller of these functions.
+ */
+typedef struct cleanup_stuff cleanup_T;
+struct cleanup_stuff
+{
+ int pending; /* error/interrupt/exception state */
+ except_T *exception; /* exception value */
+};
+
+#ifdef FEAT_SYN_HL
+/* struct passed to in_id_list() */
+struct sp_syn
+{
+ int inc_tag; /* ":syn include" unique tag */
+ short id; /* highlight group ID of item */
+ short *cont_in_list; /* cont.in group IDs, if non-zero */
+};
+
+/*
+ * Each keyword has one keyentry, which is linked in a hash list.
+ */
+typedef struct keyentry keyentry_T;
+
+struct keyentry
+{
+ keyentry_T *ke_next; /* next entry with identical "keyword[]" */
+ struct sp_syn k_syn; /* struct passed to in_id_list() */
+ short *next_list; /* ID list for next match (if non-zero) */
+ int flags;
+ int k_char; /* conceal substitute character */
+ char_u keyword[1]; /* actually longer */
+};
+
+/*
+ * Struct used to store one state of the state stack.
+ */
+typedef struct buf_state
+{
+ int bs_idx; /* index of pattern */
+ int bs_flags; /* flags for pattern */
+#ifdef FEAT_CONCEAL
+ int bs_seqnr; /* stores si_seqnr */
+ int bs_cchar; /* stores si_cchar */
+#endif
+ reg_extmatch_T *bs_extmatch; /* external matches from start pattern */
+} bufstate_T;
+
+/*
+ * syn_state contains the syntax state stack for the start of one line.
+ * Used by b_sst_array[].
+ */
+typedef struct syn_state synstate_T;
+
+struct syn_state
+{
+ synstate_T *sst_next; /* next entry in used or free list */
+ linenr_T sst_lnum; /* line number for this state */
+ union
+ {
+ bufstate_T sst_stack[SST_FIX_STATES]; /* short state stack */
+ garray_T sst_ga; /* growarray for long state stack */
+ } sst_union;
+ int sst_next_flags; /* flags for sst_next_list */
+ int sst_stacksize; /* number of states on the stack */
+ short *sst_next_list; /* "nextgroup" list in this state
+ * (this is a copy, don't free it! */
+ disptick_T sst_tick; /* tick when last displayed */
+ linenr_T sst_change_lnum;/* when non-zero, change in this line
+ * may have made the state invalid */
+};
+#endif /* FEAT_SYN_HL */
+
+/*
+ * Structure shared between syntax.c, screen.c and gui_x11.c.
+ */
+typedef struct attr_entry
+{
+ short ae_attr; /* HL_BOLD, etc. */
+ union
+ {
+ struct
+ {
+ char_u *start; /* start escape sequence */
+ char_u *stop; /* stop escape sequence */
+ } term;
+ struct
+ {
+ /* These colors need to be > 8 bits to hold 256. */
+ short_u fg_color; /* foreground color number */
+ short_u bg_color; /* background color number */
+# ifdef FEAT_TERMGUICOLORS
+ guicolor_T fg_rgb; /* foreground color RGB */
+ guicolor_T bg_rgb; /* background color RGB */
+# endif
+ } cterm;
+# ifdef FEAT_GUI
+ struct
+ {
+ guicolor_T fg_color; /* foreground color handle */
+ guicolor_T bg_color; /* background color handle */
+ guicolor_T sp_color; /* special color handle */
+ GuiFont font; /* font handle */
+# ifdef FEAT_XFONTSET
+ GuiFontset fontset; /* fontset handle */
+# endif
+ } gui;
+# endif
+ } ae_u;
+} attrentry_T;
+
+#ifdef USE_ICONV
+# ifdef HAVE_ICONV_H
+# include <iconv.h>
+# else
+# if defined(MACOS_X)
+# include <sys/errno.h>
+# ifndef EILSEQ
+# define EILSEQ ENOENT /* Early MacOS X does not have EILSEQ */
+# endif
+typedef struct _iconv_t *iconv_t;
+# else
+# include <errno.h>
+# endif
+typedef void *iconv_t;
+# endif
+#endif
+
+/*
+ * Used for the typeahead buffer: typebuf.
+ */
+typedef struct
+{
+ char_u *tb_buf; /* buffer for typed characters */
+ char_u *tb_noremap; /* mapping flags for characters in tb_buf[] */
+ int tb_buflen; /* size of tb_buf[] */
+ int tb_off; /* current position in tb_buf[] */
+ int tb_len; /* number of valid bytes in tb_buf[] */
+ int tb_maplen; /* nr of mapped bytes in tb_buf[] */
+ int tb_silent; /* nr of silently mapped bytes in tb_buf[] */
+ int tb_no_abbr_cnt; /* nr of bytes without abbrev. in tb_buf[] */
+ int tb_change_cnt; /* nr of time tb_buf was changed; never zero */
+} typebuf_T;
+
+/* Struct to hold the saved typeahead for save_typeahead(). */
+typedef struct
+{
+ typebuf_T save_typebuf;
+ int typebuf_valid; /* TRUE when save_typebuf valid */
+ int old_char;
+ int old_mod_mask;
+ buffheader_T save_readbuf1;
+ buffheader_T save_readbuf2;
+#ifdef USE_INPUT_BUF
+ char_u *save_inputbuf;
+#endif
+} tasave_T;
+
+/*
+ * Used for conversion of terminal I/O and script files.
+ */
+typedef struct
+{
+ int vc_type; /* zero or one of the CONV_ values */
+ int vc_factor; /* max. expansion factor */
+# ifdef WIN3264
+ int vc_cpfrom; /* codepage to convert from (CONV_CODEPAGE) */
+ int vc_cpto; /* codepage to convert to (CONV_CODEPAGE) */
+# endif
+# ifdef USE_ICONV
+ iconv_t vc_fd; /* for CONV_ICONV */
+# endif
+ int vc_fail; /* fail for invalid char, don't use '?' */
+} vimconv_T;
+
+/*
+ * Structure used for reading from the viminfo file.
+ */
+typedef struct
+{
+ char_u *vir_line; /* text of the current line */
+ FILE *vir_fd; /* file descriptor */
+ vimconv_T vir_conv; /* encoding conversion */
+ int vir_version; /* viminfo version detected or -1 */
+ garray_T vir_barlines; /* lines starting with | */
+} vir_T;
+
+#define CONV_NONE 0
+#define CONV_TO_UTF8 1
+#define CONV_9_TO_UTF8 2
+#define CONV_TO_LATIN1 3
+#define CONV_TO_LATIN9 4
+#define CONV_ICONV 5
+#ifdef WIN3264
+# define CONV_CODEPAGE 10 /* codepage -> codepage */
+#endif
+#ifdef MACOS_X
+# define CONV_MAC_LATIN1 20
+# define CONV_LATIN1_MAC 21
+# define CONV_MAC_UTF8 22
+# define CONV_UTF8_MAC 23
+#endif
+
+/*
+ * Structure used for mappings and abbreviations.
+ */
+typedef struct mapblock mapblock_T;
+struct mapblock
+{
+ mapblock_T *m_next; /* next mapblock in list */
+ char_u *m_keys; /* mapped from, lhs */
+ char_u *m_str; /* mapped to, rhs */
+ char_u *m_orig_str; /* rhs as entered by the user */
+ int m_keylen; /* strlen(m_keys) */
+ int m_mode; /* valid mode */
+ int m_noremap; /* if non-zero no re-mapping for m_str */
+ char m_silent; /* <silent> used, don't echo commands */
+ char m_nowait; /* <nowait> used */
+#ifdef FEAT_EVAL
+ char m_expr; /* <expr> used, m_str is an expression */
+ sctx_T m_script_ctx; /* SCTX where map was defined */
+#endif
+};
+
+/*
+ * Used for highlighting in the status line.
+ */
+struct stl_hlrec
+{
+ char_u *start;
+ int userhl; /* 0: no HL, 1-9: User HL, < 0 for syn ID */
+};
+
+
+/*
+ * Syntax items - usually buffer-specific.
+ */
+
+/* Item for a hashtable. "hi_key" can be one of three values:
+ * NULL: Never been used
+ * HI_KEY_REMOVED: Entry was removed
+ * Otherwise: Used item, pointer to the actual key; this usually is
+ * inside the item, subtract an offset to locate the item.
+ * This reduces the size of hashitem by 1/3.
+ */
+typedef struct hashitem_S
+{
+ long_u hi_hash; /* cached hash number of hi_key */
+ char_u *hi_key;
+} hashitem_T;
+
+/* The address of "hash_removed" is used as a magic number for hi_key to
+ * indicate a removed item. */
+#define HI_KEY_REMOVED &hash_removed
+#define HASHITEM_EMPTY(hi) ((hi)->hi_key == NULL || (hi)->hi_key == &hash_removed)
+
+/* Initial size for a hashtable. Our items are relatively small and growing
+ * is expensive, thus use 16 as a start. Must be a power of 2. */
+#define HT_INIT_SIZE 16
+
+typedef struct hashtable_S
+{
+ long_u ht_mask; /* mask used for hash value (nr of items in
+ * array is "ht_mask" + 1) */
+ long_u ht_used; /* number of items used */
+ long_u ht_filled; /* number of items used + removed */
+ int ht_locked; /* counter for hash_lock() */
+ int ht_error; /* when set growing failed, can't add more
+ items before growing works */
+ hashitem_T *ht_array; /* points to the array, allocated when it's
+ not "ht_smallarray" */
+ hashitem_T ht_smallarray[HT_INIT_SIZE]; /* initial array */
+} hashtab_T;
+
+typedef long_u hash_T; /* Type for hi_hash */
+
+
+#ifdef FEAT_NUM64
+/* Use 64-bit Number. */
+# ifdef WIN3264
+# ifdef PROTO
+typedef long varnumber_T;
+typedef unsigned long uvarnumber_T;
+#define VARNUM_MIN LONG_MIN
+#define VARNUM_MAX LONG_MAX
+#define UVARNUM_MAX ULONG_MAX
+# else
+typedef __int64 varnumber_T;
+typedef unsigned __int64 uvarnumber_T;
+#define VARNUM_MIN _I64_MIN
+#define VARNUM_MAX _I64_MAX
+#define UVARNUM_MAX _UI64_MAX
+# endif
+# elif defined(HAVE_STDINT_H)
+typedef int64_t varnumber_T;
+typedef uint64_t uvarnumber_T;
+#define VARNUM_MIN INT64_MIN
+#define VARNUM_MAX INT64_MAX
+#define UVARNUM_MAX UINT64_MAX
+# else
+typedef long varnumber_T;
+typedef unsigned long uvarnumber_T;
+#define VARNUM_MIN LONG_MIN
+#define VARNUM_MAX LONG_MAX
+#define UVARNUM_MAX ULONG_MAX
+# endif
+#else
+/* Use 32-bit Number. */
+typedef int varnumber_T;
+typedef unsigned int uvarnumber_T;
+#define VARNUM_MIN INT_MIN
+#define VARNUM_MAX INT_MAX
+#define UVARNUM_MAX UINT_MAX
+#endif
+
+typedef double float_T;
+
+typedef struct listvar_S list_T;
+typedef struct dictvar_S dict_T;
+typedef struct partial_S partial_T;
+typedef struct blobvar_S blob_T;
+
+typedef struct jobvar_S job_T;
+typedef struct readq_S readq_T;
+typedef struct writeq_S writeq_T;
+typedef struct jsonq_S jsonq_T;
+typedef struct cbq_S cbq_T;
+typedef struct channel_S channel_T;
+
+typedef enum
+{
+ VAR_UNKNOWN = 0,
+ VAR_NUMBER, // "v_number" is used
+ VAR_STRING, // "v_string" is used
+ VAR_FUNC, // "v_string" is function name
+ VAR_PARTIAL, // "v_partial" is used
+ VAR_LIST, // "v_list" is used
+ VAR_DICT, // "v_dict" is used
+ VAR_FLOAT, // "v_float" is used
+ VAR_SPECIAL, // "v_number" is used
+ VAR_JOB, // "v_job" is used
+ VAR_CHANNEL, // "v_channel" is used
+ VAR_BLOB, // "v_blob" is used
+} vartype_T;
+
+/*
+ * Structure to hold an internal variable without a name.
+ */
+typedef struct
+{
+ vartype_T v_type;
+ char v_lock; /* see below: VAR_LOCKED, VAR_FIXED */
+ union
+ {
+ varnumber_T v_number; /* number value */
+#ifdef FEAT_FLOAT
+ float_T v_float; /* floating number value */
+#endif
+ char_u *v_string; /* string value (can be NULL!) */
+ list_T *v_list; /* list value (can be NULL!) */
+ dict_T *v_dict; /* dict value (can be NULL!) */
+ partial_T *v_partial; /* closure: function with args */
+#ifdef FEAT_JOB_CHANNEL
+ job_T *v_job; /* job value (can be NULL!) */
+ channel_T *v_channel; /* channel value (can be NULL!) */
+#endif
+ blob_T *v_blob; /* blob value (can be NULL!) */
+ } vval;
+} typval_T;
+
+/* Values for "dv_scope". */
+#define VAR_SCOPE 1 /* a:, v:, s:, etc. scope dictionaries */
+#define VAR_DEF_SCOPE 2 /* l:, g: scope dictionaries: here funcrefs are not
+ allowed to mask existing functions */
+
+/* Values for "v_lock". */
+#define VAR_LOCKED 1 /* locked with lock(), can use unlock() */
+#define VAR_FIXED 2 /* locked forever */
+
+/*
+ * Structure to hold an item of a list: an internal variable without a name.
+ */
+typedef struct listitem_S listitem_T;
+
+struct listitem_S
+{
+ listitem_T *li_next; /* next item in list */
+ listitem_T *li_prev; /* previous item in list */
+ typval_T li_tv; /* type and value of the variable */
+};
+
+/*
+ * Struct used by those that are using an item in a list.
+ */
+typedef struct listwatch_S listwatch_T;
+
+struct listwatch_S
+{
+ listitem_T *lw_item; /* item being watched */
+ listwatch_T *lw_next; /* next watcher */
+};
+
+/*
+ * Structure to hold info about a list.
+ * Order of members is optimized to reduce padding.
+ */
+struct listvar_S
+{
+ listitem_T *lv_first; /* first item, NULL if none */
+ listitem_T *lv_last; /* last item, NULL if none */
+ listwatch_T *lv_watch; /* first watcher, NULL if none */
+ listitem_T *lv_idx_item; /* when not NULL item at index "lv_idx" */
+ list_T *lv_copylist; /* copied list used by deepcopy() */
+ list_T *lv_used_next; /* next list in used lists list */
+ list_T *lv_used_prev; /* previous list in used lists list */
+ int lv_refcount; /* reference count */
+ int lv_len; /* number of items */
+ int lv_idx; /* cached index of an item */
+ int lv_copyID; /* ID used by deepcopy() */
+ char lv_lock; /* zero, VAR_LOCKED, VAR_FIXED */
+};
+
+/*
+ * Static list with 10 items. Use init_static_list() to initialize.
+ */
+typedef struct {
+ list_T sl_list; /* must be first */
+ listitem_T sl_items[10];
+} staticList10_T;
+
+/*
+ * Structure to hold an item of a Dictionary.
+ * Also used for a variable.
+ * The key is copied into "di_key" to avoid an extra alloc/free for it.
+ */
+struct dictitem_S
+{
+ typval_T di_tv; /* type and value of the variable */
+ char_u di_flags; /* flags (only used for variable) */
+ char_u di_key[1]; /* key (actually longer!) */
+};
+typedef struct dictitem_S dictitem_T;
+
+/* A dictitem with a 16 character key (plus NUL). */
+struct dictitem16_S
+{
+ typval_T di_tv; /* type and value of the variable */
+ char_u di_flags; /* flags (only used for variable) */
+ char_u di_key[17]; /* key */
+};
+typedef struct dictitem16_S dictitem16_T;
+
+#define DI_FLAGS_RO 1 /* "di_flags" value: read-only variable */
+#define DI_FLAGS_RO_SBX 2 /* "di_flags" value: read-only in the sandbox */
+#define DI_FLAGS_FIX 4 /* "di_flags" value: fixed: no :unlet or remove() */
+#define DI_FLAGS_LOCK 8 /* "di_flags" value: locked variable */
+#define DI_FLAGS_ALLOC 16 /* "di_flags" value: separately allocated */
+
+/*
+ * Structure to hold info about a Dictionary.
+ */
+struct dictvar_S
+{
+ char dv_lock; /* zero, VAR_LOCKED, VAR_FIXED */
+ char dv_scope; /* zero, VAR_SCOPE, VAR_DEF_SCOPE */
+ int dv_refcount; /* reference count */
+ int dv_copyID; /* ID used by deepcopy() */
+ hashtab_T dv_hashtab; /* hashtab that refers to the items */
+ dict_T *dv_copydict; /* copied dict used by deepcopy() */
+ dict_T *dv_used_next; /* next dict in used dicts list */
+ dict_T *dv_used_prev; /* previous dict in used dicts list */
+};
+
+/*
+ * Structure to hold info about a blob.
+ */
+struct blobvar_S
+{
+ garray_T bv_ga; // growarray with the data
+ int bv_refcount; // reference count
+ char bv_lock; // zero, VAR_LOCKED, VAR_FIXED
+};
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+typedef struct funccall_S funccall_T;
+
+/*
+ * Structure to hold info for a user function.
+ */
+typedef struct
+{
+ int uf_varargs; /* variable nr of arguments */
+ int uf_flags;
+ int uf_calls; /* nr of active calls */
+ int uf_cleared; /* func_clear() was already called */
+ garray_T uf_args; /* arguments */
+ garray_T uf_lines; /* function lines */
+# ifdef FEAT_PROFILE
+ int uf_profiling; /* TRUE when func is being profiled */
+ int uf_prof_initialized;
+ /* profiling the function as a whole */
+ int uf_tm_count; /* nr of calls */
+ proftime_T uf_tm_total; /* time spent in function + children */
+ proftime_T uf_tm_self; /* time spent in function itself */
+ proftime_T uf_tm_children; /* time spent in children this call */
+ /* profiling the function per line */
+ int *uf_tml_count; /* nr of times line was executed */
+ proftime_T *uf_tml_total; /* time spent in a line + children */
+ proftime_T *uf_tml_self; /* time spent in a line itself */
+ proftime_T uf_tml_start; /* start time for current line */
+ proftime_T uf_tml_children; /* time spent in children for this line */
+ proftime_T uf_tml_wait; /* start wait time for current line */
+ int uf_tml_idx; /* index of line being timed; -1 if none */
+ int uf_tml_execed; /* line being timed was executed */
+# endif
+ sctx_T uf_script_ctx; /* SCTX where function was defined,
+ used for s: variables */
+ int uf_refcount; /* reference count, see func_name_refcount() */
+ funccall_T *uf_scoped; /* l: local variables for closure */
+ char_u uf_name[1]; /* name of function (actually longer); can
+ start with <SNR>123_ (<SNR> is K_SPECIAL
+ KS_EXTRA KE_SNR) */
+} ufunc_T;
+
+#define MAX_FUNC_ARGS 20 /* maximum number of function arguments */
+#define VAR_SHORT_LEN 20 /* short variable name length */
+#define FIXVAR_CNT 12 /* number of fixed variables */
+
+/* structure to hold info for a function that is currently being executed. */
+struct funccall_S
+{
+ ufunc_T *func; /* function being called */
+ int linenr; /* next line to be executed */
+ int returned; /* ":return" used */
+ struct /* fixed variables for arguments */
+ {
+ dictitem_T var; /* variable (without room for name) */
+ char_u room[VAR_SHORT_LEN]; /* room for the name */
+ } fixvar[FIXVAR_CNT];
+ dict_T l_vars; /* l: local function variables */
+ dictitem_T l_vars_var; /* variable for l: scope */
+ dict_T l_avars; /* a: argument variables */
+ dictitem_T l_avars_var; /* variable for a: scope */
+ list_T l_varlist; /* list for a:000 */
+ listitem_T l_listitems[MAX_FUNC_ARGS]; /* listitems for a:000 */
+ typval_T *rettv; /* return value */
+ linenr_T breakpoint; /* next line with breakpoint or zero */
+ int dbg_tick; /* debug_tick when breakpoint was set */
+ int level; /* top nesting level of executed function */
+#ifdef FEAT_PROFILE
+ proftime_T prof_child; /* time spent in a child */
+#endif
+ funccall_T *caller; /* calling function or NULL */
+
+ /* for closure */
+ int fc_refcount; /* number of user functions that reference this
+ * funccal */
+ int fc_copyID; /* for garbage collection */
+ garray_T fc_funcs; /* list of ufunc_T* which keep a reference to
+ * "func" */
+};
+
+/*
+ * Struct used by trans_function_name()
+ */
+typedef struct
+{
+ dict_T *fd_dict; /* Dictionary used */
+ char_u *fd_newkey; /* new key in "dict" in allocated memory */
+ dictitem_T *fd_di; /* Dictionary item used */
+} funcdict_T;
+
+typedef struct funccal_entry funccal_entry_T;
+struct funccal_entry {
+ void *top_funccal;
+ funccal_entry_T *next;
+};
+
+#else
+/* dummy typedefs for function prototypes */
+typedef struct
+{
+ int dummy;
+} ufunc_T;
+typedef struct
+{
+ int dummy;
+} funcdict_T;
+typedef struct
+{
+ int dummy;
+} funccal_entry_T;
+#endif
+
+struct partial_S
+{
+ int pt_refcount; /* reference count */
+ char_u *pt_name; /* function name; when NULL use
+ * pt_func->uf_name */
+ ufunc_T *pt_func; /* function pointer; when NULL lookup function
+ * with pt_name */
+ int pt_auto; /* when TRUE the partial was created for using
+ dict.member in handle_subscript() */
+ int pt_argc; /* number of arguments */
+ typval_T *pt_argv; /* arguments in allocated array */
+ dict_T *pt_dict; /* dict for "self" */
+};
+
+/* Information returned by get_tty_info(). */
+typedef struct {
+ int backspace; /* what the Backspace key produces */
+ int enter; /* what the Enter key produces */
+ int interrupt; /* interrupt character */
+ int nl_does_cr; /* TRUE when a NL is expanded to CR-NL on output */
+} ttyinfo_T;
+
+/* Status of a job. Order matters! */
+typedef enum
+{
+ JOB_FAILED,
+ JOB_STARTED,
+ JOB_ENDED, // detected job done
+ JOB_FINISHED, // job done and cleanup done
+} jobstatus_T;
+
+/*
+ * Structure to hold info about a Job.
+ */
+struct jobvar_S
+{
+ job_T *jv_next;
+ job_T *jv_prev;
+#ifdef UNIX
+ pid_t jv_pid;
+#endif
+#ifdef WIN32
+ PROCESS_INFORMATION jv_proc_info;
+ HANDLE jv_job_object;
+#endif
+ char_u *jv_tty_in; /* controlling tty input, allocated */
+ char_u *jv_tty_out; /* controlling tty output, allocated */
+ jobstatus_T jv_status;
+ char_u *jv_stoponexit; /* allocated */
+#ifdef UNIX
+ char_u *jv_termsig; /* allocated */
+#endif
+ int jv_exitval;
+ char_u *jv_exit_cb; /* allocated */
+ partial_T *jv_exit_partial;
+
+ buf_T *jv_in_buf; /* buffer from "in-name" */
+
+ int jv_refcount; /* reference count */
+ int jv_copyID;
+
+ channel_T *jv_channel; /* channel for I/O, reference counted */
+ char **jv_argv; /* command line used to start the job */
+};
+
+/*
+ * Structures to hold info about a Channel.
+ */
+struct readq_S
+{
+ char_u *rq_buffer;
+ long_u rq_buflen;
+ readq_T *rq_next;
+ readq_T *rq_prev;
+};
+
+struct writeq_S
+{
+ garray_T wq_ga;
+ writeq_T *wq_next;
+ writeq_T *wq_prev;
+};
+
+struct jsonq_S
+{
+ typval_T *jq_value;
+ jsonq_T *jq_next;
+ jsonq_T *jq_prev;
+ int jq_no_callback; /* TRUE when no callback was found */
+};
+
+struct cbq_S
+{
+ char_u *cq_callback;
+ partial_T *cq_partial;
+ int cq_seq_nr;
+ cbq_T *cq_next;
+ cbq_T *cq_prev;
+};
+
+/* mode for a channel */
+typedef enum
+{
+ MODE_NL = 0,
+ MODE_RAW,
+ MODE_JSON,
+ MODE_JS,
+} ch_mode_T;
+
+typedef enum {
+ JIO_PIPE, // default
+ JIO_NULL,
+ JIO_FILE,
+ JIO_BUFFER,
+ JIO_OUT
+} job_io_T;
+
+#define CH_PART_FD(part) ch_part[part].ch_fd
+
+/* Ordering matters, it is used in for loops: IN is last, only SOCK/OUT/ERR
+ * are polled. */
+typedef enum {
+ PART_SOCK = 0,
+#define CH_SOCK_FD CH_PART_FD(PART_SOCK)
+#ifdef FEAT_JOB_CHANNEL
+ PART_OUT,
+# define CH_OUT_FD CH_PART_FD(PART_OUT)
+ PART_ERR,
+# define CH_ERR_FD CH_PART_FD(PART_ERR)
+ PART_IN,
+# define CH_IN_FD CH_PART_FD(PART_IN)
+#endif
+ PART_COUNT,
+} ch_part_T;
+
+#define INVALID_FD (-1)
+
+/* The per-fd info for a channel. */
+typedef struct {
+ sock_T ch_fd; /* socket/stdin/stdout/stderr, -1 if not used */
+
+# if defined(UNIX) && !defined(HAVE_SELECT)
+ int ch_poll_idx; /* used by channel_poll_setup() */
+# endif
+
+#ifdef FEAT_GUI_X11
+ XtInputId ch_inputHandler; /* Cookie for input */
+#endif
+#ifdef FEAT_GUI_GTK
+ gint ch_inputHandler; /* Cookie for input */
+#endif
+
+ ch_mode_T ch_mode;
+ job_io_T ch_io;
+ int ch_timeout; /* request timeout in msec */
+
+ readq_T ch_head; /* header for circular raw read queue */
+ jsonq_T ch_json_head; /* header for circular json read queue */
+ int ch_block_id; /* ID that channel_read_json_block() is
+ waiting for */
+ /* When ch_wait_len is non-zero use ch_deadline to wait for incomplete
+ * message to be complete. The value is the length of the incomplete
+ * message when the deadline was set. If it gets longer (something was
+ * received) the deadline is reset. */
+ size_t ch_wait_len;
+#ifdef WIN32
+ DWORD ch_deadline;
+#else
+ struct timeval ch_deadline;
+#endif
+ int ch_block_write; /* for testing: 0 when not used, -1 when write
+ * does not block, 1 simulate blocking */
+ int ch_nonblocking; /* write() is non-blocking */
+ writeq_T ch_writeque; /* header for write queue */
+
+ cbq_T ch_cb_head; /* dummy node for per-request callbacks */
+ char_u *ch_callback; /* call when a msg is not handled */
+ partial_T *ch_partial;
+
+ bufref_T ch_bufref; /* buffer to read from or write to */
+ int ch_nomodifiable; /* TRUE when buffer can be 'nomodifiable' */
+ int ch_nomod_error; /* TRUE when e_modifiable was given */
+ int ch_buf_append; /* write appended lines instead top-bot */
+ linenr_T ch_buf_top; /* next line to send */
+ linenr_T ch_buf_bot; /* last line to send */
+} chanpart_T;
+
+struct channel_S {
+ channel_T *ch_next;
+ channel_T *ch_prev;
+
+ int ch_id; /* ID of the channel */
+ int ch_last_msg_id; /* ID of the last message */
+
+ chanpart_T ch_part[PART_COUNT]; /* info for socket, out, err and in */
+ int ch_write_text_mode; /* write buffer lines with CR, not NL */
+
+ char *ch_hostname; /* only for socket, allocated */
+ int ch_port; /* only for socket */
+
+ int ch_to_be_closed; /* bitset of readable fds to be closed.
+ * When all readable fds have been closed,
+ * set to (1 << PART_COUNT). */
+ int ch_to_be_freed; /* When TRUE channel must be freed when it's
+ * safe to invoke callbacks. */
+ int ch_error; /* When TRUE an error was reported. Avoids
+ * giving pages full of error messages when
+ * the other side has exited, only mention the
+ * first error until the connection works
+ * again. */
+
+ void (*ch_nb_close_cb)(void);
+ /* callback for Netbeans when channel is
+ * closed */
+
+#ifdef WIN32
+ int ch_named_pipe; /* using named pipe instead of pty */
+#endif
+ char_u *ch_callback; /* call when any msg is not handled */
+ partial_T *ch_partial;
+ char_u *ch_close_cb; /* call when channel is closed */
+ partial_T *ch_close_partial;
+ int ch_drop_never;
+ int ch_keep_open; /* do not close on read error */
+ int ch_nonblock;
+
+ job_T *ch_job; // Job that uses this channel; this does not
+ // count as a reference to avoid a circular
+ // reference, the job refers to the channel.
+ int ch_job_killed; // TRUE when there was a job and it was killed
+ // or we know it died.
+ int ch_anonymous_pipe; // ConPTY
+ int ch_killing; // TerminateJobObject() was called
+
+ int ch_refcount; // reference count
+ int ch_copyID;
+};
+
+#define JO_MODE 0x0001 /* channel mode */
+#define JO_IN_MODE 0x0002 /* stdin mode */
+#define JO_OUT_MODE 0x0004 /* stdout mode */
+#define JO_ERR_MODE 0x0008 /* stderr mode */
+#define JO_CALLBACK 0x0010 /* channel callback */
+#define JO_OUT_CALLBACK 0x0020 /* stdout callback */
+#define JO_ERR_CALLBACK 0x0040 /* stderr callback */
+#define JO_CLOSE_CALLBACK 0x0080 /* "close_cb" */
+#define JO_WAITTIME 0x0100 /* only for ch_open() */
+#define JO_TIMEOUT 0x0200 /* all timeouts */
+#define JO_OUT_TIMEOUT 0x0400 /* stdout timeouts */
+#define JO_ERR_TIMEOUT 0x0800 /* stderr timeouts */
+#define JO_PART 0x1000 /* "part" */
+#define JO_ID 0x2000 /* "id" */
+#define JO_STOPONEXIT 0x4000 /* "stoponexit" */
+#define JO_EXIT_CB 0x8000 /* "exit_cb" */
+#define JO_OUT_IO 0x10000 /* "out_io" */
+#define JO_ERR_IO 0x20000 /* "err_io" (JO_OUT_IO << 1) */
+#define JO_IN_IO 0x40000 /* "in_io" (JO_OUT_IO << 2) */
+#define JO_OUT_NAME 0x80000 /* "out_name" */
+#define JO_ERR_NAME 0x100000 /* "err_name" (JO_OUT_NAME << 1) */
+#define JO_IN_NAME 0x200000 /* "in_name" (JO_OUT_NAME << 2) */
+#define JO_IN_TOP 0x400000 /* "in_top" */
+#define JO_IN_BOT 0x800000 /* "in_bot" */
+#define JO_OUT_BUF 0x1000000 /* "out_buf" */
+#define JO_ERR_BUF 0x2000000 /* "err_buf" (JO_OUT_BUF << 1) */
+#define JO_IN_BUF 0x4000000 /* "in_buf" (JO_OUT_BUF << 2) */
+#define JO_CHANNEL 0x8000000 /* "channel" */
+#define JO_BLOCK_WRITE 0x10000000 /* "block_write" */
+#define JO_OUT_MODIFIABLE 0x20000000 /* "out_modifiable" */
+#define JO_ERR_MODIFIABLE 0x40000000 /* "err_modifiable" (JO_OUT_ << 1) */
+#define JO_ALL 0x7fffffff
+
+#define JO2_OUT_MSG 0x0001 /* "out_msg" */
+#define JO2_ERR_MSG 0x0002 /* "err_msg" (JO_OUT_ << 1) */
+#define JO2_TERM_NAME 0x0004 /* "term_name" */
+#define JO2_TERM_FINISH 0x0008 /* "term_finish" */
+#define JO2_ENV 0x0010 /* "env" */
+#define JO2_CWD 0x0020 /* "cwd" */
+#define JO2_TERM_ROWS 0x0040 /* "term_rows" */
+#define JO2_TERM_COLS 0x0080 /* "term_cols" */
+#define JO2_VERTICAL 0x0100 /* "vertical" */
+#define JO2_CURWIN 0x0200 /* "curwin" */
+#define JO2_HIDDEN 0x0400 /* "hidden" */
+#define JO2_TERM_OPENCMD 0x0800 /* "term_opencmd" */
+#define JO2_EOF_CHARS 0x1000 /* "eof_chars" */
+#define JO2_NORESTORE 0x2000 /* "norestore" */
+#define JO2_TERM_KILL 0x4000 /* "term_kill" */
+#define JO2_ANSI_COLORS 0x8000 /* "ansi_colors" */
+#define JO2_TERM_MODE 0x10000 /* "term_mode" */
+
+#define JO_MODE_ALL (JO_MODE + JO_IN_MODE + JO_OUT_MODE + JO_ERR_MODE)
+#define JO_CB_ALL \
+ (JO_CALLBACK + JO_OUT_CALLBACK + JO_ERR_CALLBACK + JO_CLOSE_CALLBACK)
+#define JO_TIMEOUT_ALL (JO_TIMEOUT + JO_OUT_TIMEOUT + JO_ERR_TIMEOUT)
+
+/*
+ * Options for job and channel commands.
+ */
+typedef struct
+{
+ int jo_set; /* JO_ bits for values that were set */
+ int jo_set2; /* JO2_ bits for values that were set */
+
+ ch_mode_T jo_mode;
+ ch_mode_T jo_in_mode;
+ ch_mode_T jo_out_mode;
+ ch_mode_T jo_err_mode;
+ int jo_noblock;
+
+ job_io_T jo_io[4]; /* PART_OUT, PART_ERR, PART_IN */
+ char_u jo_io_name_buf[4][NUMBUFLEN];
+ char_u *jo_io_name[4]; /* not allocated! */
+ int jo_io_buf[4];
+ int jo_pty;
+ int jo_modifiable[4];
+ int jo_message[4];
+ channel_T *jo_channel;
+
+ linenr_T jo_in_top;
+ linenr_T jo_in_bot;
+
+ char_u *jo_callback; /* not allocated! */
+ partial_T *jo_partial; /* not referenced! */
+ char_u *jo_out_cb; /* not allocated! */
+ partial_T *jo_out_partial; /* not referenced! */
+ char_u *jo_err_cb; /* not allocated! */
+ partial_T *jo_err_partial; /* not referenced! */
+ char_u *jo_close_cb; /* not allocated! */
+ partial_T *jo_close_partial; /* not referenced! */
+ char_u *jo_exit_cb; /* not allocated! */
+ partial_T *jo_exit_partial; /* not referenced! */
+ int jo_drop_never;
+ int jo_waittime;
+ int jo_timeout;
+ int jo_out_timeout;
+ int jo_err_timeout;
+ int jo_block_write; /* for testing only */
+ int jo_part;
+ int jo_id;
+ char_u jo_soe_buf[NUMBUFLEN];
+ char_u *jo_stoponexit;
+ dict_T *jo_env; /* environment variables */
+ char_u jo_cwd_buf[NUMBUFLEN];
+ char_u *jo_cwd;
+
+#ifdef FEAT_TERMINAL
+ /* when non-zero run the job in a terminal window of this size */
+ int jo_term_rows;
+ int jo_term_cols;
+ int jo_vertical;
+ int jo_curwin;
+ int jo_hidden;
+ int jo_term_norestore;
+ char_u *jo_term_name;
+ char_u *jo_term_opencmd;
+ int jo_term_finish;
+ char_u *jo_eof_chars;
+ char_u *jo_term_kill;
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ long_u jo_ansi_colors[16];
+# endif
+ int jo_term_mode; // first character of "term_mode"
+#endif
+} jobopt_T;
+
+
+/* structure used for explicit stack while garbage collecting hash tables */
+typedef struct ht_stack_S
+{
+ hashtab_T *ht;
+ struct ht_stack_S *prev;
+} ht_stack_T;
+
+/* structure used for explicit stack while garbage collecting lists */
+typedef struct list_stack_S
+{
+ list_T *list;
+ struct list_stack_S *prev;
+} list_stack_T;
+
+/* values for b_syn_spell: what to do with toplevel text */
+#define SYNSPL_DEFAULT 0 /* spell check if @Spell not defined */
+#define SYNSPL_TOP 1 /* spell check toplevel text */
+#define SYNSPL_NOTOP 2 /* don't spell check toplevel text */
+
+/* avoid #ifdefs for when b_spell is not available */
+#ifdef FEAT_SPELL
+# define B_SPELL(buf) ((buf)->b_spell)
+#else
+# define B_SPELL(buf) (0)
+#endif
+
+#ifdef FEAT_QUICKFIX
+typedef struct qf_info_S qf_info_T;
+#endif
+
+#ifdef FEAT_PROFILE
+/*
+ * Used for :syntime: timing of executing a syntax pattern.
+ */
+typedef struct {
+ proftime_T total; /* total time used */
+ proftime_T slowest; /* time of slowest call */
+ long count; /* nr of times used */
+ long match; /* nr of times matched */
+} syn_time_T;
+#endif
+
+#ifdef FEAT_CRYPT
+/*
+ * Structure to hold the type of encryption and the state of encryption or
+ * decryption.
+ */
+typedef struct {
+ int method_nr;
+ void *method_state; /* method-specific state information */
+} cryptstate_T;
+
+/* values for method_nr */
+# define CRYPT_M_ZIP 0
+# define CRYPT_M_BF 1
+# define CRYPT_M_BF2 2
+# define CRYPT_M_COUNT 3 /* number of crypt methods */
+
+// Currently all crypt methods work inplace. If one is added that isn't then
+// define this.
+// # define CRYPT_NOT_INPLACE 1
+#endif
+
+
+/*
+ * These are items normally related to a buffer. But when using ":ownsyntax"
+ * a window may have its own instance.
+ */
+typedef struct {
+#ifdef FEAT_SYN_HL
+ hashtab_T b_keywtab; /* syntax keywords hash table */
+ hashtab_T b_keywtab_ic; /* idem, ignore case */
+ int b_syn_error; /* TRUE when error occurred in HL */
+# ifdef FEAT_RELTIME
+ int b_syn_slow; /* TRUE when 'redrawtime' reached */
+# endif
+ int b_syn_ic; /* ignore case for :syn cmds */
+ int b_syn_spell; /* SYNSPL_ values */
+ garray_T b_syn_patterns; /* table for syntax patterns */
+ garray_T b_syn_clusters; /* table for syntax clusters */
+ int b_spell_cluster_id; /* @Spell cluster ID or 0 */
+ int b_nospell_cluster_id; /* @NoSpell cluster ID or 0 */
+ int b_syn_containedin; /* TRUE when there is an item with a
+ "containedin" argument */
+ int b_syn_sync_flags; /* flags about how to sync */
+ short b_syn_sync_id; /* group to sync on */
+ long b_syn_sync_minlines; /* minimal sync lines offset */
+ long b_syn_sync_maxlines; /* maximal sync lines offset */
+ long b_syn_sync_linebreaks; /* offset for multi-line pattern */
+ char_u *b_syn_linecont_pat; /* line continuation pattern */
+ regprog_T *b_syn_linecont_prog; /* line continuation program */
+#ifdef FEAT_PROFILE
+ syn_time_T b_syn_linecont_time;
+#endif
+ int b_syn_linecont_ic; /* ignore-case flag for above */
+ int b_syn_topgrp; /* for ":syntax include" */
+# ifdef FEAT_CONCEAL
+ int b_syn_conceal; /* auto-conceal for :syn cmds */
+# endif
+# ifdef FEAT_FOLDING
+ int b_syn_folditems; /* number of patterns with the HL_FOLD
+ flag set */
+# endif
+ /*
+ * b_sst_array[] contains the state stack for a number of lines, for the
+ * start of that line (col == 0). This avoids having to recompute the
+ * syntax state too often.
+ * b_sst_array[] is allocated to hold the state for all displayed lines,
+ * and states for 1 out of about 20 other lines.
+ * b_sst_array pointer to an array of synstate_T
+ * b_sst_len number of entries in b_sst_array[]
+ * b_sst_first pointer to first used entry in b_sst_array[] or NULL
+ * b_sst_firstfree pointer to first free entry in b_sst_array[] or NULL
+ * b_sst_freecount number of free entries in b_sst_array[]
+ * b_sst_check_lnum entries after this lnum need to be checked for
+ * validity (MAXLNUM means no check needed)
+ */
+ synstate_T *b_sst_array;
+ int b_sst_len;
+ synstate_T *b_sst_first;
+ synstate_T *b_sst_firstfree;
+ int b_sst_freecount;
+ linenr_T b_sst_check_lnum;
+ short_u b_sst_lasttick; /* last display tick */
+#endif /* FEAT_SYN_HL */
+
+#ifdef FEAT_SPELL
+ /* for spell checking */
+ garray_T b_langp; /* list of pointers to slang_T, see spell.c */
+ char_u b_spell_ismw[256];/* flags: is midword char */
+ char_u *b_spell_ismw_mb; /* multi-byte midword chars */
+ char_u *b_p_spc; /* 'spellcapcheck' */
+ regprog_T *b_cap_prog; /* program for 'spellcapcheck' */
+ char_u *b_p_spf; /* 'spellfile' */
+ char_u *b_p_spl; /* 'spelllang' */
+ int b_cjk; /* all CJK letters as OK */
+#endif
+#if !defined(FEAT_SYN_HL) && !defined(FEAT_SPELL)
+ int dummy;
+#endif
+ char_u b_syn_chartab[32]; /* syntax iskeyword option */
+ char_u *b_syn_isk; /* iskeyword option */
+} synblock_T;
+
+
+/*
+ * buffer: structure that holds information about one file
+ *
+ * Several windows can share a single Buffer
+ * A buffer is unallocated if there is no memfile for it.
+ * A buffer is new if the associated file has never been loaded yet.
+ */
+
+struct file_buffer
+{
+ memline_T b_ml; /* associated memline (also contains line
+ count) */
+
+ buf_T *b_next; /* links in list of buffers */
+ buf_T *b_prev;
+
+ int b_nwindows; /* nr of windows open on this buffer */
+
+ int b_flags; /* various BF_ flags */
+ int b_locked; /* Buffer is being closed or referenced, don't
+ let autocommands wipe it out. */
+
+ /*
+ * b_ffname has the full path of the file (NULL for no name).
+ * b_sfname is the name as the user typed it (or NULL).
+ * b_fname is the same as b_sfname, unless ":cd" has been done,
+ * then it is the same as b_ffname (NULL for no name).
+ */
+ char_u *b_ffname; // full path file name, allocated
+ char_u *b_sfname; // short file name, allocated, may be equal to
+ // b_ffname
+ char_u *b_fname; // current file name, points to b_ffname or
+ // b_sfname
+
+#ifdef UNIX
+ int b_dev_valid; /* TRUE when b_dev has a valid number */
+ dev_t b_dev; /* device number */
+ ino_t b_ino; /* inode number */
+#endif
+#ifdef FEAT_CW_EDITOR
+ FSSpec b_FSSpec; /* MacOS File Identification */
+#endif
+#ifdef VMS
+ char b_fab_rfm; /* Record format */
+ char b_fab_rat; /* Record attribute */
+ unsigned int b_fab_mrs; /* Max record size */
+#endif
+ int b_fnum; /* buffer number for this file. */
+ char_u b_key[VIM_SIZEOF_INT * 2 + 1];
+ /* key used for buf_hashtab, holds b_fnum as
+ hex string */
+
+ int b_changed; /* 'modified': Set to TRUE if something in the
+ file has been changed and not written out. */
+ dictitem16_T b_ct_di; /* holds the b:changedtick value in
+ b_ct_di.di_tv.vval.v_number;
+ incremented for each change, also for undo */
+#define CHANGEDTICK(buf) ((buf)->b_ct_di.di_tv.vval.v_number)
+
+ varnumber_T b_last_changedtick; /* b:changedtick when TextChanged or
+ TextChangedI was last triggered. */
+#ifdef FEAT_INS_EXPAND
+ varnumber_T b_last_changedtick_pum; /* b:changedtick when TextChangedP was
+ last triggered. */
+#endif
+
+ int b_saving; /* Set to TRUE if we are in the middle of
+ saving the buffer. */
+
+ /*
+ * Changes to a buffer require updating of the display. To minimize the
+ * work, remember changes made and update everything at once.
+ */
+ int b_mod_set; /* TRUE when there are changes since the last
+ time the display was updated */
+ linenr_T b_mod_top; /* topmost lnum that was changed */
+ linenr_T b_mod_bot; /* lnum below last changed line, AFTER the
+ change */
+ long b_mod_xlines; /* number of extra buffer lines inserted;
+ negative when lines were deleted */
+
+ wininfo_T *b_wininfo; /* list of last used info for each window */
+
+ long b_mtime; /* last change time of original file */
+ long b_mtime_read; /* last change time when reading */
+ off_T b_orig_size; /* size of original file in bytes */
+ int b_orig_mode; /* mode of original file */
+#ifdef FEAT_VIMINFO
+ time_T b_last_used; /* time when the buffer was last used; used
+ * for viminfo */
+#endif
+
+ pos_T b_namedm[NMARKS]; /* current named marks (mark.c) */
+
+ /* These variables are set when VIsual_active becomes FALSE */
+ visualinfo_T b_visual;
+#ifdef FEAT_EVAL
+ int b_visual_mode_eval; /* b_visual.vi_mode for visualmode() */
+#endif
+
+ pos_T b_last_cursor; /* cursor position when last unloading this
+ buffer */
+ pos_T b_last_insert; /* where Insert mode was left */
+ pos_T b_last_change; /* position of last change: '. mark */
+
+#ifdef FEAT_JUMPLIST
+ /*
+ * the changelist contains old change positions
+ */
+ pos_T b_changelist[JUMPLISTSIZE];
+ int b_changelistlen; /* number of active entries */
+ int b_new_change; /* set by u_savecommon() */
+#endif
+
+ /*
+ * Character table, only used in charset.c for 'iskeyword'
+ * 32 bytes of 8 bits: 1 bit per character 0-255.
+ */
+ char_u b_chartab[32];
+
+#ifdef FEAT_LOCALMAP
+ /* Table used for mappings local to a buffer. */
+ mapblock_T *(b_maphash[256]);
+
+ /* First abbreviation local to a buffer. */
+ mapblock_T *b_first_abbr;
+#endif
+#ifdef FEAT_USR_CMDS
+ /* User commands local to the buffer. */
+ garray_T b_ucmds;
+#endif
+ /*
+ * start and end of an operator, also used for '[ and ']
+ */
+ pos_T b_op_start;
+ pos_T b_op_start_orig; /* used for Insstart_orig */
+ pos_T b_op_end;
+
+#ifdef FEAT_VIMINFO
+ int b_marks_read; /* Have we read viminfo marks yet? */
+#endif
+
+ /*
+ * The following only used in undo.c.
+ */
+ u_header_T *b_u_oldhead; /* pointer to oldest header */
+ u_header_T *b_u_newhead; /* pointer to newest header; may not be valid
+ if b_u_curhead is not NULL */
+ u_header_T *b_u_curhead; /* pointer to current header */
+ int b_u_numhead; /* current number of headers */
+ int b_u_synced; /* entry lists are synced */
+ long b_u_seq_last; /* last used undo sequence number */
+ long b_u_save_nr_last; /* counter for last file write */
+ long b_u_seq_cur; /* hu_seq of header below which we are now */
+ time_T b_u_time_cur; /* uh_time of header below which we are now */
+ long b_u_save_nr_cur; /* file write nr after which we are now */
+
+ /*
+ * variables for "U" command in undo.c
+ */
+ undoline_T b_u_line_ptr; /* saved line for "U" command */
+ linenr_T b_u_line_lnum; /* line number of line in u_line */
+ colnr_T b_u_line_colnr; /* optional column number */
+
+#ifdef FEAT_INS_EXPAND
+ int b_scanned; /* ^N/^P have scanned this buffer */
+#endif
+
+ /* flags for use of ":lmap" and IM control */
+ long b_p_iminsert; /* input mode for insert */
+ long b_p_imsearch; /* input mode for search */
+#define B_IMODE_USE_INSERT -1 /* Use b_p_iminsert value for search */
+#define B_IMODE_NONE 0 /* Input via none */
+#define B_IMODE_LMAP 1 /* Input via langmap */
+#define B_IMODE_IM 2 /* Input via input method */
+#define B_IMODE_LAST 2
+
+#ifdef FEAT_KEYMAP
+ short b_kmap_state; /* using "lmap" mappings */
+# define KEYMAP_INIT 1 /* 'keymap' was set, call keymap_init() */
+# define KEYMAP_LOADED 2 /* 'keymap' mappings have been loaded */
+ garray_T b_kmap_ga; /* the keymap table */
+#endif
+
+ /*
+ * Options local to a buffer.
+ * They are here because their value depends on the type of file
+ * or contents of the file being edited.
+ */
+ int b_p_initialized; /* set when options initialized */
+
+#ifdef FEAT_EVAL
+ sctx_T b_p_script_ctx[BV_COUNT]; /* SCTXs for buffer-local options */
+#endif
+
+ int b_p_ai; /* 'autoindent' */
+ int b_p_ai_nopaste; /* b_p_ai saved for paste mode */
+ char_u *b_p_bkc; /* 'backupcopy' */
+ unsigned b_bkc_flags; /* flags for 'backupcopy' */
+ int b_p_ci; /* 'copyindent' */
+ int b_p_bin; /* 'binary' */
+ int b_p_bomb; /* 'bomb' */
+ char_u *b_p_bh; /* 'bufhidden' */
+ char_u *b_p_bt; /* 'buftype' */
+#ifdef FEAT_QUICKFIX
+#define BUF_HAS_QF_ENTRY 1
+#define BUF_HAS_LL_ENTRY 2
+ int b_has_qf_entry;
+#endif
+ int b_p_bl; /* 'buflisted' */
+#ifdef FEAT_CINDENT
+ int b_p_cin; /* 'cindent' */
+ char_u *b_p_cino; /* 'cinoptions' */
+ char_u *b_p_cink; /* 'cinkeys' */
+#endif
+#if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT)
+ char_u *b_p_cinw; /* 'cinwords' */
+#endif
+#ifdef FEAT_COMMENTS
+ char_u *b_p_com; /* 'comments' */
+#endif
+#ifdef FEAT_FOLDING
+ char_u *b_p_cms; /* 'commentstring' */
+#endif
+#ifdef FEAT_INS_EXPAND
+ char_u *b_p_cpt; /* 'complete' */
+#endif
+#ifdef FEAT_COMPL_FUNC
+ char_u *b_p_cfu; /* 'completefunc' */
+ char_u *b_p_ofu; /* 'omnifunc' */
+#endif
+ int b_p_eol; /* 'endofline' */
+ int b_p_fixeol; /* 'fixendofline' */
+ int b_p_et; /* 'expandtab' */
+ int b_p_et_nobin; /* b_p_et saved for binary mode */
+ int b_p_et_nopaste; /* b_p_et saved for paste mode */
+ char_u *b_p_fenc; /* 'fileencoding' */
+ char_u *b_p_ff; /* 'fileformat' */
+ char_u *b_p_ft; /* 'filetype' */
+ char_u *b_p_fo; /* 'formatoptions' */
+ char_u *b_p_flp; /* 'formatlistpat' */
+ int b_p_inf; /* 'infercase' */
+ char_u *b_p_isk; /* 'iskeyword' */
+#ifdef FEAT_FIND_ID
+ char_u *b_p_def; /* 'define' local value */
+ char_u *b_p_inc; /* 'include' */
+# ifdef FEAT_EVAL
+ char_u *b_p_inex; /* 'includeexpr' */
+ long_u b_p_inex_flags; /* flags for 'includeexpr' */
+# endif
+#endif
+#if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
+ char_u *b_p_inde; /* 'indentexpr' */
+ long_u b_p_inde_flags; /* flags for 'indentexpr' */
+ char_u *b_p_indk; /* 'indentkeys' */
+#endif
+ char_u *b_p_fp; /* 'formatprg' */
+#if defined(FEAT_EVAL)
+ char_u *b_p_fex; /* 'formatexpr' */
+ long_u b_p_fex_flags; /* flags for 'formatexpr' */
+#endif
+#ifdef FEAT_CRYPT
+ char_u *b_p_key; /* 'key' */
+#endif
+ char_u *b_p_kp; /* 'keywordprg' */
+#ifdef FEAT_LISP
+ int b_p_lisp; /* 'lisp' */
+#endif
+ char_u *b_p_menc; /* 'makeencoding' */
+ char_u *b_p_mps; /* 'matchpairs' */
+ int b_p_ml; /* 'modeline' */
+ int b_p_ml_nobin; /* b_p_ml saved for binary mode */
+ int b_p_ma; /* 'modifiable' */
+ char_u *b_p_nf; /* 'nrformats' */
+ int b_p_pi; /* 'preserveindent' */
+#ifdef FEAT_TEXTOBJ
+ char_u *b_p_qe; /* 'quoteescape' */
+#endif
+ int b_p_ro; /* 'readonly' */
+ long b_p_sw; /* 'shiftwidth' */
+ int b_p_sn; /* 'shortname' */
+#ifdef FEAT_SMARTINDENT
+ int b_p_si; /* 'smartindent' */
+#endif
+ long b_p_sts; /* 'softtabstop' */
+ long b_p_sts_nopaste; /* b_p_sts saved for paste mode */
+#ifdef FEAT_SEARCHPATH
+ char_u *b_p_sua; /* 'suffixesadd' */
+#endif
+ int b_p_swf; /* 'swapfile' */
+#ifdef FEAT_SYN_HL
+ long b_p_smc; /* 'synmaxcol' */
+ char_u *b_p_syn; /* 'syntax' */
+#endif
+ long b_p_ts; /* 'tabstop' */
+ int b_p_tx; /* 'textmode' */
+ long b_p_tw; /* 'textwidth' */
+ long b_p_tw_nobin; /* b_p_tw saved for binary mode */
+ long b_p_tw_nopaste; /* b_p_tw saved for paste mode */
+ long b_p_wm; /* 'wrapmargin' */
+ long b_p_wm_nobin; /* b_p_wm saved for binary mode */
+ long b_p_wm_nopaste; /* b_p_wm saved for paste mode */
+#ifdef FEAT_VARTABS
+ char_u *b_p_vsts; /* 'varsofttabstop' */
+ int *b_p_vsts_array; /* 'varsofttabstop' in internal format */
+ char_u *b_p_vsts_nopaste; /* b_p_vsts saved for paste mode */
+ char_u *b_p_vts; /* 'vartabstop' */
+ int *b_p_vts_array; /* 'vartabstop' in internal format */
+#endif
+#ifdef FEAT_KEYMAP
+ char_u *b_p_keymap; /* 'keymap' */
+#endif
+
+ /* local values for options which are normally global */
+#ifdef FEAT_QUICKFIX
+ char_u *b_p_gp; /* 'grepprg' local value */
+ char_u *b_p_mp; /* 'makeprg' local value */
+ char_u *b_p_efm; /* 'errorformat' local value */
+#endif
+ char_u *b_p_ep; /* 'equalprg' local value */
+ char_u *b_p_path; /* 'path' local value */
+ int b_p_ar; /* 'autoread' local value */
+ char_u *b_p_tags; /* 'tags' local value */
+ char_u *b_p_tc; /* 'tagcase' local value */
+ unsigned b_tc_flags; /* flags for 'tagcase' */
+#ifdef FEAT_INS_EXPAND
+ char_u *b_p_dict; /* 'dictionary' local value */
+ char_u *b_p_tsr; /* 'thesaurus' local value */
+#endif
+ long b_p_ul; /* 'undolevels' local value */
+#ifdef FEAT_PERSISTENT_UNDO
+ int b_p_udf; /* 'undofile' */
+#endif
+#ifdef FEAT_LISP
+ char_u *b_p_lw; /* 'lispwords' local value */
+#endif
+#ifdef FEAT_TERMINAL
+ long b_p_twsl; /* 'termwinscroll' */
+#endif
+
+ /* end of buffer options */
+
+#ifdef FEAT_CINDENT
+ /* values set from b_p_cino */
+ int b_ind_level;
+ int b_ind_open_imag;
+ int b_ind_no_brace;
+ int b_ind_first_open;
+ int b_ind_open_extra;
+ int b_ind_close_extra;
+ int b_ind_open_left_imag;
+ int b_ind_jump_label;
+ int b_ind_case;
+ int b_ind_case_code;
+ int b_ind_case_break;
+ int b_ind_param;
+ int b_ind_func_type;
+ int b_ind_comment;
+ int b_ind_in_comment;
+ int b_ind_in_comment2;
+ int b_ind_cpp_baseclass;
+ int b_ind_continuation;
+ int b_ind_unclosed;
+ int b_ind_unclosed2;
+ int b_ind_unclosed_noignore;
+ int b_ind_unclosed_wrapped;
+ int b_ind_unclosed_whiteok;
+ int b_ind_matching_paren;
+ int b_ind_paren_prev;
+ int b_ind_maxparen;
+ int b_ind_maxcomment;
+ int b_ind_scopedecl;
+ int b_ind_scopedecl_code;
+ int b_ind_java;
+ int b_ind_js;
+ int b_ind_keep_case_label;
+ int b_ind_hash_comment;
+ int b_ind_cpp_namespace;
+ int b_ind_if_for_while;
+ int b_ind_cpp_extern_c;
+#endif
+
+ linenr_T b_no_eol_lnum; /* non-zero lnum when last line of next binary
+ * write should not have an end-of-line */
+
+ int b_start_eol; /* last line had eol when it was read */
+ int b_start_ffc; /* first char of 'ff' when edit started */
+ char_u *b_start_fenc; /* 'fileencoding' when edit started or NULL */
+ int b_bad_char; /* "++bad=" argument when edit started or 0 */
+ int b_start_bomb; /* 'bomb' when it was read */
+
+#ifdef FEAT_EVAL
+ dictitem_T b_bufvar; /* variable for "b:" Dictionary */
+ dict_T *b_vars; /* internal variables, local to buffer */
+#endif
+#ifdef FEAT_TEXT_PROP
+ int b_has_textprop; // TRUE when text props were added
+ hashtab_T *b_proptypes; // text property types local to buffer
+#endif
+
+#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
+ char_u *b_p_bexpr; /* 'balloonexpr' local value */
+ long_u b_p_bexpr_flags;/* flags for 'balloonexpr' */
+#endif
+#ifdef FEAT_CRYPT
+ char_u *b_p_cm; /* 'cryptmethod' */
+#endif
+
+ /* When a buffer is created, it starts without a swap file. b_may_swap is
+ * then set to indicate that a swap file may be opened later. It is reset
+ * if a swap file could not be opened.
+ */
+ int b_may_swap;
+ int b_did_warn; /* Set to 1 if user has been warned on first
+ change of a read-only file */
+
+ /* Two special kinds of buffers:
+ * help buffer - used for help files, won't use a swap file.
+ * spell buffer - used for spell info, never displayed and doesn't have a
+ * file name.
+ */
+ int b_help; /* TRUE for help file buffer (when set b_p_bt
+ is "help") */
+#ifdef FEAT_SPELL
+ int b_spell; /* TRUE for a spell file buffer, most fields
+ are not used! Use the B_SPELL macro to
+ access b_spell without #ifdef. */
+#endif
+
+ int b_shortname; /* this file has an 8.3 file name */
+
+#ifdef FEAT_JOB_CHANNEL
+ char_u *b_prompt_text; // set by prompt_setprompt()
+ char_u *b_prompt_callback; // set by prompt_setcallback()
+ partial_T *b_prompt_partial; // set by prompt_setcallback()
+ char_u *b_prompt_interrupt; // set by prompt_setinterrupt()
+ partial_T *b_prompt_int_partial; // set by prompt_setinterrupt()
+ int b_prompt_insert; // value for restart_edit when entering
+ // a prompt buffer window.
+#endif
+#ifdef FEAT_MZSCHEME
+ void *b_mzscheme_ref; /* The MzScheme reference to this buffer */
+#endif
+
+#ifdef FEAT_PERL
+ void *b_perl_private;
+#endif
+
+#ifdef FEAT_PYTHON
+ void *b_python_ref; /* The Python reference to this buffer */
+#endif
+
+#ifdef FEAT_PYTHON3
+ void *b_python3_ref; /* The Python3 reference to this buffer */
+#endif
+
+#ifdef FEAT_TCL
+ void *b_tcl_ref;
+#endif
+
+#ifdef FEAT_RUBY
+ void *b_ruby_ref;
+#endif
+
+#if defined(FEAT_SYN_HL) || defined(FEAT_SPELL)
+ synblock_T b_s; /* Info related to syntax highlighting. w_s
+ * normally points to this, but some windows
+ * may use a different synblock_T. */
+#endif
+
+#ifdef FEAT_SIGNS
+ signlist_T *b_signlist; /* list of signs to draw */
+# ifdef FEAT_NETBEANS_INTG
+ int b_has_sign_column; /* Flag that is set when a first sign is
+ * added and remains set until the end of
+ * the netbeans session. */
+# endif
+#endif
+
+#ifdef FEAT_NETBEANS_INTG
+ int b_netbeans_file; /* TRUE when buffer is owned by NetBeans */
+ int b_was_netbeans_file;/* TRUE if b_netbeans_file was once set */
+#endif
+#ifdef FEAT_JOB_CHANNEL
+ int b_write_to_channel; /* TRUE when appended lines are written to
+ * a channel. */
+#endif
+
+#ifdef FEAT_CRYPT
+ cryptstate_T *b_cryptstate; /* Encryption state while reading or writing
+ * the file. NULL when not using encryption. */
+#endif
+ int b_mapped_ctrl_c; /* modes where CTRL-C is mapped */
+
+#ifdef FEAT_TERMINAL
+ term_T *b_term; /* When not NULL this buffer is for a terminal
+ * window. */
+#endif
+#ifdef FEAT_DIFF
+ int b_diff_failed; // internal diff failed for this buffer
+#endif
+}; /* file_buffer */
+
+
+#ifdef FEAT_DIFF
+/*
+ * Stuff for diff mode.
+ */
+# define DB_COUNT 8 /* up to eight buffers can be diff'ed */
+
+/*
+ * Each diffblock defines where a block of lines starts in each of the buffers
+ * and how many lines it occupies in that buffer. When the lines are missing
+ * in the buffer the df_count[] is zero. This is all counted in
+ * buffer lines.
+ * There is always at least one unchanged line in between the diffs.
+ * Otherwise it would have been included in the diff above or below it.
+ * df_lnum[] + df_count[] is the lnum below the change. When in one buffer
+ * lines have been inserted, in the other buffer df_lnum[] is the line below
+ * the insertion and df_count[] is zero. When appending lines at the end of
+ * the buffer, df_lnum[] is one beyond the end!
+ * This is using a linked list, because the number of differences is expected
+ * to be reasonable small. The list is sorted on lnum.
+ */
+typedef struct diffblock_S diff_T;
+struct diffblock_S
+{
+ diff_T *df_next;
+ linenr_T df_lnum[DB_COUNT]; /* line number in buffer */
+ linenr_T df_count[DB_COUNT]; /* nr of inserted/changed lines */
+};
+#endif
+
+#define SNAP_HELP_IDX 0
+#define SNAP_AUCMD_IDX 1
+#define SNAP_COUNT 2
+
+/*
+ * Tab pages point to the top frame of each tab page.
+ * Note: Most values are NOT valid for the current tab page! Use "curwin",
+ * "firstwin", etc. for that. "tp_topframe" is always valid and can be
+ * compared against "topframe" to find the current tab page.
+ */
+typedef struct tabpage_S tabpage_T;
+struct tabpage_S
+{
+ tabpage_T *tp_next; /* next tabpage or NULL */
+ frame_T *tp_topframe; /* topframe for the windows */
+ win_T *tp_curwin; /* current window in this Tab page */
+ win_T *tp_prevwin; /* previous window in this Tab page */
+ win_T *tp_firstwin; /* first window in this Tab page */
+ win_T *tp_lastwin; /* last window in this Tab page */
+ long tp_old_Rows; /* Rows when Tab page was left */
+ long tp_old_Columns; /* Columns when Tab page was left */
+ long tp_ch_used; /* value of 'cmdheight' when frame size
+ was set */
+#ifdef FEAT_GUI
+ int tp_prev_which_scrollbars[3];
+ /* previous value of which_scrollbars */
+#endif
+#ifdef FEAT_DIFF
+ diff_T *tp_first_diff;
+ buf_T *(tp_diffbuf[DB_COUNT]);
+ int tp_diff_invalid; // list of diffs is outdated
+ int tp_diff_update; // update diffs before redrawing
+#endif
+ frame_T *(tp_snapshot[SNAP_COUNT]); /* window layout snapshots */
+#ifdef FEAT_EVAL
+ dictitem_T tp_winvar; /* variable for "t:" Dictionary */
+ dict_T *tp_vars; /* internal variables, local to tab page */
+#endif
+
+#ifdef FEAT_PYTHON
+ void *tp_python_ref; /* The Python value for this tab page */
+#endif
+
+#ifdef FEAT_PYTHON3
+ void *tp_python3_ref; /* The Python value for this tab page */
+#endif
+};
+
+/*
+ * Structure to cache info for displayed lines in w_lines[].
+ * Each logical line has one entry.
+ * The entry tells how the logical line is currently displayed in the window.
+ * This is updated when displaying the window.
+ * When the display is changed (e.g., when clearing the screen) w_lines_valid
+ * is changed to exclude invalid entries.
+ * When making changes to the buffer, wl_valid is reset to indicate wl_size
+ * may not reflect what is actually in the buffer. When wl_valid is FALSE,
+ * the entries can only be used to count the number of displayed lines used.
+ * wl_lnum and wl_lastlnum are invalid too.
+ */
+typedef struct w_line
+{
+ linenr_T wl_lnum; /* buffer line number for logical line */
+ short_u wl_size; /* height in screen lines */
+ char wl_valid; /* TRUE values are valid for text in buffer */
+#ifdef FEAT_FOLDING
+ char wl_folded; /* TRUE when this is a range of folded lines */
+ linenr_T wl_lastlnum; /* last buffer line number for logical line */
+#endif
+} wline_T;
+
+/*
+ * Windows are kept in a tree of frames. Each frame has a column (FR_COL)
+ * or row (FR_ROW) layout or is a leaf, which has a window.
+ */
+struct frame_S
+{
+ char fr_layout; /* FR_LEAF, FR_COL or FR_ROW */
+ int fr_width;
+ int fr_newwidth; /* new width used in win_equal_rec() */
+ int fr_height;
+ int fr_newheight; /* new height used in win_equal_rec() */
+ frame_T *fr_parent; /* containing frame or NULL */
+ frame_T *fr_next; /* frame right or below in same parent, NULL
+ for first */
+ frame_T *fr_prev; /* frame left or above in same parent, NULL
+ for last */
+ /* fr_child and fr_win are mutually exclusive */
+ frame_T *fr_child; /* first contained frame */
+ win_T *fr_win; /* window that fills this frame */
+};
+
+#define FR_LEAF 0 /* frame is a leaf */
+#define FR_ROW 1 /* frame with a row of windows */
+#define FR_COL 2 /* frame with a column of windows */
+
+/*
+ * Struct used for highlighting 'hlsearch' matches, matches defined by
+ * ":match" and matches defined by match functions.
+ * For 'hlsearch' there is one pattern for all windows. For ":match" and the
+ * match functions there is a different pattern for each window.
+ */
+typedef struct
+{
+ regmmatch_T rm; /* points to the regexp program; contains last found
+ match (may continue in next line) */
+ buf_T *buf; /* the buffer to search for a match */
+ linenr_T lnum; /* the line to search for a match */
+ int attr; /* attributes to be used for a match */
+ int attr_cur; /* attributes currently active in win_line() */
+ linenr_T first_lnum; /* first lnum to search for multi-line pat */
+ colnr_T startcol; /* in win_line() points to char where HL starts */
+ colnr_T endcol; /* in win_line() points to char where HL ends */
+ int is_addpos; /* position specified directly by
+ matchaddpos(). TRUE/FALSE */
+#ifdef FEAT_RELTIME
+ proftime_T tm; /* for a time limit */
+#endif
+} match_T;
+
+/* number of positions supported by matchaddpos() */
+#define MAXPOSMATCH 8
+
+/*
+ * Same as lpos_T, but with additional field len.
+ */
+typedef struct
+{
+ linenr_T lnum; /* line number */
+ colnr_T col; /* column number */
+ int len; /* length: 0 - to the end of line */
+} llpos_T;
+
+/*
+ * posmatch_T provides an array for storing match items for matchaddpos()
+ * function.
+ */
+typedef struct posmatch posmatch_T;
+struct posmatch
+{
+ llpos_T pos[MAXPOSMATCH]; /* array of positions */
+ int cur; /* internal position counter */
+ linenr_T toplnum; /* top buffer line */
+ linenr_T botlnum; /* bottom buffer line */
+};
+
+/*
+ * matchitem_T provides a linked list for storing match items for ":match" and
+ * the match functions.
+ */
+typedef struct matchitem matchitem_T;
+struct matchitem
+{
+ matchitem_T *next;
+ int id; /* match ID */
+ int priority; /* match priority */
+ char_u *pattern; /* pattern to highlight */
+ int hlg_id; /* highlight group ID */
+ regmmatch_T match; /* regexp program for pattern */
+ posmatch_T pos; /* position matches */
+ match_T hl; /* struct for doing the actual highlighting */
+#ifdef FEAT_CONCEAL
+ int conceal_char; /* cchar for Conceal highlighting */
+#endif
+};
+
+#ifdef FEAT_MENU
+typedef struct {
+ int wb_startcol;
+ int wb_endcol;
+ vimmenu_T *wb_menu;
+} winbar_item_T;
+#endif
+
+/*
+ * Structure which contains all information that belongs to a window
+ *
+ * All row numbers are relative to the start of the window, except w_winrow.
+ */
+struct window_S
+{
+ int w_id; /* unique window ID */
+
+ buf_T *w_buffer; /* buffer we are a window into (used
+ often, keep it the first item!) */
+
+#if defined(FEAT_SYN_HL) || defined(FEAT_SPELL)
+ synblock_T *w_s; /* for :ownsyntax */
+#endif
+
+ win_T *w_prev; /* link to previous window */
+ win_T *w_next; /* link to next window */
+ int w_closing; /* window is being closed, don't let
+ autocommands close it too. */
+
+ frame_T *w_frame; /* frame containing this window */
+
+ pos_T w_cursor; /* cursor position in buffer */
+
+ colnr_T w_curswant; /* The column we'd like to be at. This is
+ used to try to stay in the same column
+ for up/down cursor motions. */
+
+ int w_set_curswant; /* If set, then update w_curswant the next
+ time through cursupdate() to the
+ current virtual column */
+
+#ifdef FEAT_SYN_HL
+ linenr_T w_last_cursorline; // where last time 'cursorline' was drawn
+#endif
+
+ /*
+ * the next seven are used to update the visual part
+ */
+ char w_old_visual_mode; /* last known VIsual_mode */
+ linenr_T w_old_cursor_lnum; /* last known end of visual part */
+ colnr_T w_old_cursor_fcol; /* first column for block visual part */
+ colnr_T w_old_cursor_lcol; /* last column for block visual part */
+ linenr_T w_old_visual_lnum; /* last known start of visual part */
+ colnr_T w_old_visual_col; /* last known start of visual part */
+ colnr_T w_old_curswant; /* last known value of Curswant */
+
+ /*
+ * "w_topline", "w_leftcol" and "w_skipcol" specify the offsets for
+ * displaying the buffer.
+ */
+ linenr_T w_topline; /* buffer line number of the line at the
+ top of the window */
+ char w_topline_was_set; /* flag set to TRUE when topline is set,
+ e.g. by winrestview() */
+#ifdef FEAT_DIFF
+ int w_topfill; /* number of filler lines above w_topline */
+ int w_old_topfill; /* w_topfill at last redraw */
+ int w_botfill; /* TRUE when filler lines are actually
+ below w_topline (at end of file) */
+ int w_old_botfill; /* w_botfill at last redraw */
+#endif
+ colnr_T w_leftcol; /* window column number of the left most
+ character in the window; used when
+ 'wrap' is off */
+ colnr_T w_skipcol; /* starting column when a single line
+ doesn't fit in the window */
+
+ /*
+ * Layout of the window in the screen.
+ * May need to add "msg_scrolled" to "w_winrow" in rare situations.
+ */
+ int w_winrow; /* first row of window in screen */
+ int w_height; /* number of rows in window, excluding
+ status/command/winbar line(s) */
+ int w_status_height; /* number of status lines (0 or 1) */
+ int w_wincol; /* Leftmost column of window in screen. */
+ int w_width; /* Width of window, excluding separation. */
+ int w_vsep_width; /* Number of separator columns (0 or 1). */
+
+ /*
+ * === start of cached values ====
+ */
+ /*
+ * Recomputing is minimized by storing the result of computations.
+ * Use functions in screen.c to check if they are valid and to update.
+ * w_valid is a bitfield of flags, which indicate if specific values are
+ * valid or need to be recomputed. See screen.c for values.
+ */
+ int w_valid;
+ pos_T w_valid_cursor; /* last known position of w_cursor, used
+ to adjust w_valid */
+ colnr_T w_valid_leftcol; /* last known w_leftcol */
+
+ /*
+ * w_cline_height is the number of physical lines taken by the buffer line
+ * that the cursor is on. We use this to avoid extra calls to plines().
+ */
+ int w_cline_height; /* current size of cursor line */
+#ifdef FEAT_FOLDING
+ int w_cline_folded; /* cursor line is folded */
+#endif
+
+ int w_cline_row; /* starting row of the cursor line */
+
+ colnr_T w_virtcol; /* column number of the cursor in the
+ buffer line, as opposed to the column
+ number we're at on the screen. This
+ makes a difference on lines which span
+ more than one screen line or when
+ w_leftcol is non-zero */
+
+ /*
+ * w_wrow and w_wcol specify the cursor position in the window.
+ * This is related to positions in the window, not in the display or
+ * buffer, thus w_wrow is relative to w_winrow.
+ */
+ int w_wrow, w_wcol; /* cursor position in window */
+
+ linenr_T w_botline; /* number of the line below the bottom of
+ the window */
+ int w_empty_rows; /* number of ~ rows in window */
+#ifdef FEAT_DIFF
+ int w_filler_rows; /* number of filler rows at the end of the
+ window */
+#endif
+
+ /*
+ * Info about the lines currently in the window is remembered to avoid
+ * recomputing it every time. The allocated size of w_lines[] is Rows.
+ * Only the w_lines_valid entries are actually valid.
+ * When the display is up-to-date w_lines[0].wl_lnum is equal to w_topline
+ * and w_lines[w_lines_valid - 1].wl_lnum is equal to w_botline.
+ * Between changing text and updating the display w_lines[] represents
+ * what is currently displayed. wl_valid is reset to indicated this.
+ * This is used for efficient redrawing.
+ */
+ int w_lines_valid; /* number of valid entries */
+ wline_T *w_lines;
+
+#ifdef FEAT_FOLDING
+ garray_T w_folds; /* array of nested folds */
+ char w_fold_manual; /* when TRUE: some folds are opened/closed
+ manually */
+ char w_foldinvalid; /* when TRUE: folding needs to be
+ recomputed */
+#endif
+#ifdef FEAT_LINEBREAK
+ int w_nrwidth; /* width of 'number' and 'relativenumber'
+ column being used */
+#endif
+
+ /*
+ * === end of cached values ===
+ */
+
+ int w_redr_type; /* type of redraw to be performed on win */
+ int w_upd_rows; /* number of window lines to update when
+ w_redr_type is REDRAW_TOP */
+ linenr_T w_redraw_top; /* when != 0: first line needing redraw */
+ linenr_T w_redraw_bot; /* when != 0: last line needing redraw */
+ int w_redr_status; /* if TRUE status line must be redrawn */
+
+#ifdef FEAT_CMDL_INFO
+ /* remember what is shown in the ruler for this window (if 'ruler' set) */
+ pos_T w_ru_cursor; /* cursor position shown in ruler */
+ colnr_T w_ru_virtcol; /* virtcol shown in ruler */
+ linenr_T w_ru_topline; /* topline shown in ruler */
+ linenr_T w_ru_line_count; /* line count used for ruler */
+# ifdef FEAT_DIFF
+ int w_ru_topfill; /* topfill shown in ruler */
+# endif
+ char w_ru_empty; /* TRUE if ruler shows 0-1 (empty line) */
+#endif
+
+ int w_alt_fnum; /* alternate file (for # and CTRL-^) */
+
+ alist_T *w_alist; /* pointer to arglist for this window */
+ int w_arg_idx; /* current index in argument list (can be
+ out of range!) */
+ int w_arg_idx_invalid; /* editing another file than w_arg_idx */
+
+ char_u *w_localdir; /* absolute path of local directory or
+ NULL */
+#ifdef FEAT_MENU
+ vimmenu_T *w_winbar; /* The root of the WinBar menu hierarchy. */
+ winbar_item_T *w_winbar_items; /* list of items in the WinBar */
+ int w_winbar_height; /* 1 if there is a window toolbar */
+#endif
+
+ /*
+ * Options local to a window.
+ * They are local because they influence the layout of the window or
+ * depend on the window layout.
+ * There are two values: w_onebuf_opt is local to the buffer currently in
+ * this window, w_allbuf_opt is for all buffers in this window.
+ */
+ winopt_T w_onebuf_opt;
+ winopt_T w_allbuf_opt;
+
+ /* A few options have local flags for P_INSECURE. */
+#ifdef FEAT_STL_OPT
+ long_u w_p_stl_flags; /* flags for 'statusline' */
+#endif
+#ifdef FEAT_EVAL
+ long_u w_p_fde_flags; /* flags for 'foldexpr' */
+ long_u w_p_fdt_flags; /* flags for 'foldtext' */
+#endif
+#ifdef FEAT_SYN_HL
+ int *w_p_cc_cols; /* array of columns to highlight or NULL */
+#endif
+#ifdef FEAT_LINEBREAK
+ int w_p_brimin; /* minimum width for breakindent */
+ int w_p_brishift; /* additional shift for breakindent */
+ int w_p_brisbr; /* sbr in 'briopt' */
+#endif
+ long w_p_siso; /* 'sidescrolloff' local value */
+ long w_p_so; /* 'scrolloff' local value */
+
+ /* transform a pointer to a "onebuf" option into a "allbuf" option */
+#define GLOBAL_WO(p) ((char *)p + sizeof(winopt_T))
+
+ long w_scbind_pos;
+
+#ifdef FEAT_EVAL
+ dictitem_T w_winvar; /* variable for "w:" Dictionary */
+ dict_T *w_vars; /* internal variables, local to window */
+#endif
+
+#if defined(FEAT_RIGHTLEFT) && defined(FEAT_FKMAP)
+ int w_farsi; /* for the window dependent Farsi functions */
+#endif
+
+ /*
+ * The w_prev_pcmark field is used to check whether we really did jump to
+ * a new line after setting the w_pcmark. If not, then we revert to
+ * using the previous w_pcmark.
+ */
+ pos_T w_pcmark; /* previous context mark */
+ pos_T w_prev_pcmark; /* previous w_pcmark */
+
+#ifdef FEAT_JUMPLIST
+ /*
+ * the jumplist contains old cursor positions
+ */
+ xfmark_T w_jumplist[JUMPLISTSIZE];
+ int w_jumplistlen; /* number of active entries */
+ int w_jumplistidx; /* current position */
+
+ int w_changelistidx; /* current position in b_changelist */
+#endif
+
+#ifdef FEAT_SEARCH_EXTRA
+ matchitem_T *w_match_head; /* head of match list */
+ int w_next_match_id; /* next match ID */
+#endif
+
+ /*
+ * the tagstack grows from 0 upwards:
+ * entry 0: older
+ * entry 1: newer
+ * entry 2: newest
+ */
+ taggy_T w_tagstack[TAGSTACKSIZE]; /* the tag stack */
+ int w_tagstackidx; /* idx just below active entry */
+ int w_tagstacklen; /* number of tags on stack */
+
+ /*
+ * w_fraction is the fractional row of the cursor within the window, from
+ * 0 at the top row to FRACTION_MULT at the last row.
+ * w_prev_fraction_row was the actual cursor row when w_fraction was last
+ * calculated.
+ */
+ int w_fraction;
+ int w_prev_fraction_row;
+
+#ifdef FEAT_GUI
+ scrollbar_T w_scrollbars[2]; /* vert. Scrollbars for this window */
+#endif
+#ifdef FEAT_LINEBREAK
+ linenr_T w_nrwidth_line_count; /* line count when ml_nrwidth_width
+ * was computed. */
+ long w_nuw_cached; /* 'numberwidth' option cached */
+ int w_nrwidth_width; /* nr of chars to print line count. */
+#endif
+
+#ifdef FEAT_QUICKFIX
+ qf_info_T *w_llist; /* Location list for this window */
+ /*
+ * Location list reference used in the location list window.
+ * In a non-location list window, w_llist_ref is NULL.
+ */
+ qf_info_T *w_llist_ref;
+#endif
+
+
+#ifdef FEAT_MZSCHEME
+ void *w_mzscheme_ref; /* The MzScheme value for this window */
+#endif
+
+#ifdef FEAT_PERL
+ void *w_perl_private;
+#endif
+
+#ifdef FEAT_PYTHON
+ void *w_python_ref; /* The Python value for this window */
+#endif
+
+#ifdef FEAT_PYTHON3
+ void *w_python3_ref; /* The Python value for this window */
+#endif
+
+#ifdef FEAT_TCL
+ void *w_tcl_ref;
+#endif
+
+#ifdef FEAT_RUBY
+ void *w_ruby_ref;
+#endif
+};
+
+/*
+ * Arguments for operators.
+ */
+typedef struct oparg_S
+{
+ int op_type; /* current pending operator type */
+ int regname; /* register to use for the operator */
+ int motion_type; /* type of the current cursor motion */
+ int motion_force; /* force motion type: 'v', 'V' or CTRL-V */
+ int use_reg_one; /* TRUE if delete uses reg 1 even when not
+ linewise */
+ int inclusive; /* TRUE if char motion is inclusive (only
+ valid when motion_type is MCHAR */
+ int end_adjusted; /* backuped b_op_end one char (only used by
+ do_format()) */
+ pos_T start; /* start of the operator */
+ pos_T end; /* end of the operator */
+ pos_T cursor_start; /* cursor position before motion for "gw" */
+
+ long line_count; /* number of lines from op_start to op_end
+ (inclusive) */
+ int empty; /* op_start and op_end the same (only used by
+ do_change()) */
+ int is_VIsual; /* operator on Visual area */
+ int block_mode; /* current operator is Visual block mode */
+ colnr_T start_vcol; /* start col for block mode operator */
+ colnr_T end_vcol; /* end col for block mode operator */
+ long prev_opcount; /* ca.opcount saved for K_CURSORHOLD */
+ long prev_count0; /* ca.count0 saved for K_CURSORHOLD */
+} oparg_T;
+
+/*
+ * Arguments for Normal mode commands.
+ */
+typedef struct cmdarg_S
+{
+ oparg_T *oap; /* Operator arguments */
+ int prechar; /* prefix character (optional, always 'g') */
+ int cmdchar; /* command character */
+ int nchar; /* next command character (optional) */
+ int ncharC1; /* first composing character (optional) */
+ int ncharC2; /* second composing character (optional) */
+ int extra_char; /* yet another character (optional) */
+ long opcount; /* count before an operator */
+ long count0; /* count before command, default 0 */
+ long count1; /* count before command, default 1 */
+ int arg; /* extra argument from nv_cmds[] */
+ int retval; /* return: CA_* values */
+ char_u *searchbuf; /* return: pointer to search pattern or NULL */
+} cmdarg_T;
+
+/* values for retval: */
+#define CA_COMMAND_BUSY 1 /* skip restarting edit() once */
+#define CA_NO_ADJ_OP_END 2 /* don't adjust operator end */
+
+#ifdef CURSOR_SHAPE
+/*
+ * struct to store values from 'guicursor' and 'mouseshape'
+ */
+/* Indexes in shape_table[] */
+#define SHAPE_IDX_N 0 /* Normal mode */
+#define SHAPE_IDX_V 1 /* Visual mode */
+#define SHAPE_IDX_I 2 /* Insert mode */
+#define SHAPE_IDX_R 3 /* Replace mode */
+#define SHAPE_IDX_C 4 /* Command line Normal mode */
+#define SHAPE_IDX_CI 5 /* Command line Insert mode */
+#define SHAPE_IDX_CR 6 /* Command line Replace mode */
+#define SHAPE_IDX_O 7 /* Operator-pending mode */
+#define SHAPE_IDX_VE 8 /* Visual mode with 'selection' exclusive */
+#define SHAPE_IDX_CLINE 9 /* On command line */
+#define SHAPE_IDX_STATUS 10 /* A status line */
+#define SHAPE_IDX_SDRAG 11 /* dragging a status line */
+#define SHAPE_IDX_VSEP 12 /* A vertical separator line */
+#define SHAPE_IDX_VDRAG 13 /* dragging a vertical separator line */
+#define SHAPE_IDX_MORE 14 /* Hit-return or More */
+#define SHAPE_IDX_MOREL 15 /* Hit-return or More in last line */
+#define SHAPE_IDX_SM 16 /* showing matching paren */
+#define SHAPE_IDX_COUNT 17
+
+#define SHAPE_BLOCK 0 /* block cursor */
+#define SHAPE_HOR 1 /* horizontal bar cursor */
+#define SHAPE_VER 2 /* vertical bar cursor */
+
+#define MSHAPE_NUMBERED 1000 /* offset for shapes identified by number */
+#define MSHAPE_HIDE 1 /* hide mouse pointer */
+
+#define SHAPE_MOUSE 1 /* used for mouse pointer shape */
+#define SHAPE_CURSOR 2 /* used for text cursor shape */
+
+typedef struct cursor_entry
+{
+ int shape; /* one of the SHAPE_ defines */
+ int mshape; /* one of the MSHAPE defines */
+ int percentage; /* percentage of cell for bar */
+ long blinkwait; /* blinking, wait time before blinking starts */
+ long blinkon; /* blinking, on time */
+ long blinkoff; /* blinking, off time */
+ int id; /* highlight group ID */
+ int id_lm; /* highlight group ID for :lmap mode */
+ char *name; /* mode name (fixed) */
+ char used_for; /* SHAPE_MOUSE and/or SHAPE_CURSOR */
+} cursorentry_T;
+#endif /* CURSOR_SHAPE */
+
+#ifdef FEAT_MENU
+
+/* Indices into vimmenu_T->strings[] and vimmenu_T->noremap[] for each mode */
+#define MENU_INDEX_INVALID -1
+#define MENU_INDEX_NORMAL 0
+#define MENU_INDEX_VISUAL 1
+#define MENU_INDEX_SELECT 2
+#define MENU_INDEX_OP_PENDING 3
+#define MENU_INDEX_INSERT 4
+#define MENU_INDEX_CMDLINE 5
+#define MENU_INDEX_TERMINAL 6
+#define MENU_INDEX_TIP 7
+#define MENU_MODES 8
+
+/* Menu modes */
+#define MENU_NORMAL_MODE (1 << MENU_INDEX_NORMAL)
+#define MENU_VISUAL_MODE (1 << MENU_INDEX_VISUAL)
+#define MENU_SELECT_MODE (1 << MENU_INDEX_SELECT)
+#define MENU_OP_PENDING_MODE (1 << MENU_INDEX_OP_PENDING)
+#define MENU_INSERT_MODE (1 << MENU_INDEX_INSERT)
+#define MENU_CMDLINE_MODE (1 << MENU_INDEX_CMDLINE)
+#define MENU_TERMINAL_MODE (1 << MENU_INDEX_TERMINAL)
+#define MENU_TIP_MODE (1 << MENU_INDEX_TIP)
+#define MENU_ALL_MODES ((1 << MENU_INDEX_TIP) - 1)
+/*note MENU_INDEX_TIP is not a 'real' mode*/
+
+/* Start a menu name with this to not include it on the main menu bar */
+#define MNU_HIDDEN_CHAR ']'
+
+struct VimMenu
+{
+ int modes; /* Which modes is this menu visible for? */
+ int enabled; /* for which modes the menu is enabled */
+ char_u *name; /* Name of menu, possibly translated */
+ char_u *dname; /* Displayed Name ("name" without '&') */
+#ifdef FEAT_MULTI_LANG
+ char_u *en_name; /* "name" untranslated, NULL when "name"
+ * was not translated */
+ char_u *en_dname; /* "dname" untranslated, NULL when "dname"
+ * was not translated */
+#endif
+ int mnemonic; /* mnemonic key (after '&') */
+ char_u *actext; /* accelerator text (after TAB) */
+ int priority; /* Menu order priority */
+#ifdef FEAT_GUI
+ void (*cb)(vimmenu_T *); /* Call-back routine */
+#endif
+#ifdef FEAT_TOOLBAR
+ char_u *iconfile; /* name of file for icon or NULL */
+ int iconidx; /* icon index (-1 if not set) */
+ int icon_builtin; /* icon names is BuiltIn{nr} */
+#endif
+ char_u *strings[MENU_MODES]; /* Mapped string for each mode */
+ int noremap[MENU_MODES]; /* A REMAP_ flag for each mode */
+ char silent[MENU_MODES]; /* A silent flag for each mode */
+ vimmenu_T *children; /* Children of sub-menu */
+ vimmenu_T *parent; /* Parent of menu */
+ vimmenu_T *next; /* Next item in menu */
+#ifdef FEAT_GUI_X11
+ Widget id; /* Manage this to enable item */
+ Widget submenu_id; /* If this is submenu, add children here */
+#endif
+#ifdef FEAT_GUI_GTK
+ GtkWidget *id; /* Manage this to enable item */
+ GtkWidget *submenu_id; /* If this is submenu, add children here */
+# if defined(GTK_CHECK_VERSION) && !GTK_CHECK_VERSION(3,4,0)
+ GtkWidget *tearoff_handle;
+# endif
+ GtkWidget *label; /* Used by "set wak=" code. */
+#endif
+#ifdef FEAT_GUI_MOTIF
+ int sensitive; /* turn button on/off */
+ char **xpm; /* pixmap data */
+ char *xpm_fname; /* file with pixmap data */
+#endif
+#ifdef FEAT_GUI_ATHENA
+ Pixmap image; /* Toolbar image */
+#endif
+#ifdef FEAT_BEVAL_TIP
+ BalloonEval *tip; /* tooltip for this menu item */
+#endif
+#ifdef FEAT_GUI_W32
+ UINT id; /* Id of menu item */
+ HMENU submenu_id; /* If this is submenu, add children here */
+ HWND tearoff_handle; /* hWnd of tearoff if created */
+#endif
+#ifdef FEAT_GUI_MAC
+/* MenuHandle id; */
+/* short index; */ /* the item index within the father menu */
+ short menu_id; /* the menu id to which this item belong */
+ short submenu_id; /* the menu id of the children (could be
+ get through some tricks) */
+ MenuHandle menu_handle;
+ MenuHandle submenu_handle;
+#endif
+#ifdef FEAT_GUI_PHOTON
+ PtWidget_t *id;
+ PtWidget_t *submenu_id;
+#endif
+};
+#else
+/* For generating prototypes when FEAT_MENU isn't defined. */
+typedef int vimmenu_T;
+
+#endif /* FEAT_MENU */
+
+/*
+ * Struct to save values in before executing autocommands for a buffer that is
+ * not the current buffer.
+ */
+typedef struct
+{
+ buf_T *save_curbuf; /* saved curbuf */
+ int use_aucmd_win; /* using aucmd_win */
+ win_T *save_curwin; /* saved curwin */
+ win_T *new_curwin; /* new curwin */
+ win_T *save_prevwin; /* saved prevwin */
+ bufref_T new_curbuf; /* new curbuf */
+ char_u *globaldir; /* saved value of globaldir */
+} aco_save_T;
+
+/*
+ * Generic option table item, only used for printer at the moment.
+ */
+typedef struct
+{
+ const char *name;
+ int hasnum;
+ long number;
+ char_u *string; /* points into option string */
+ int strlen;
+ int present;
+} option_table_T;
+
+/*
+ * Structure to hold printing color and font attributes.
+ */
+typedef struct
+{
+ long_u fg_color;
+ long_u bg_color;
+ int bold;
+ int italic;
+ int underline;
+ int undercurl;
+} prt_text_attr_T;
+
+/*
+ * Structure passed back to the generic printer code.
+ */
+typedef struct
+{
+ int n_collated_copies;
+ int n_uncollated_copies;
+ int duplex;
+ int chars_per_line;
+ int lines_per_page;
+ int has_color;
+ prt_text_attr_T number;
+#ifdef FEAT_SYN_HL
+ int modec;
+ int do_syntax;
+#endif
+ int user_abort;
+ char_u *jobname;
+#ifdef FEAT_POSTSCRIPT
+ char_u *outfile;
+ char_u *arguments;
+#endif
+} prt_settings_T;
+
+#define PRINT_NUMBER_WIDTH 8
+
+/*
+ * Used for popup menu items.
+ */
+typedef struct
+{
+ char_u *pum_text; /* main menu text */
+ char_u *pum_kind; /* extra kind text (may be truncated) */
+ char_u *pum_extra; /* extra menu text (may be truncated) */
+ char_u *pum_info; /* extra info */
+} pumitem_T;
+
+/*
+ * Structure used for get_tagfname().
+ */
+typedef struct
+{
+ char_u *tn_tags; /* value of 'tags' when starting */
+ char_u *tn_np; /* current position in tn_tags */
+ int tn_did_filefind_init;
+ int tn_hf_idx;
+ void *tn_search_ctx;
+} tagname_T;
+
+/*
+ * Array indexes used for cptext argument of ins_compl_add().
+ */
+#define CPT_ABBR 0 /* "abbr" */
+#define CPT_MENU 1 /* "menu" */
+#define CPT_KIND 2 /* "kind" */
+#define CPT_INFO 3 /* "info" */
+#define CPT_USER_DATA 4 /* "user data" */
+#define CPT_COUNT 5 /* Number of entries */
+
+typedef struct {
+ UINT32_T total[2];
+ UINT32_T state[8];
+ char_u buffer[64];
+} context_sha256_T;
+
+/*
+ * types for expressions.
+ */
+typedef enum
+{
+ TYPE_UNKNOWN = 0,
+ TYPE_EQUAL, // ==
+ TYPE_NEQUAL, // !=
+ TYPE_GREATER, // >
+ TYPE_GEQUAL, // >=
+ TYPE_SMALLER, // <
+ TYPE_SEQUAL, // <=
+ TYPE_MATCH, // =~
+ TYPE_NOMATCH, // !~
+} exptype_T;
+
+/*
+ * Structure used for reading in json_decode().
+ */
+struct js_reader
+{
+ char_u *js_buf; /* text to be decoded */
+ char_u *js_end; /* NUL in js_buf */
+ int js_used; /* bytes used from js_buf */
+ int (*js_fill)(struct js_reader *);
+ /* function to fill the buffer or NULL;
+ * return TRUE when the buffer was filled */
+ void *js_cookie; /* can be used by js_fill */
+ int js_cookie_arg; /* can be used by js_fill */
+};
+typedef struct js_reader js_read_T;
+
+typedef struct timer_S timer_T;
+struct timer_S
+{
+ long tr_id;
+#ifdef FEAT_TIMERS
+ timer_T *tr_next;
+ timer_T *tr_prev;
+ proftime_T tr_due; /* when the callback is to be invoked */
+ char tr_firing; /* when TRUE callback is being called */
+ char tr_paused; /* when TRUE callback is not invoked */
+ int tr_repeat; /* number of times to repeat, -1 forever */
+ long tr_interval; /* msec */
+ char_u *tr_callback; /* allocated */
+ partial_T *tr_partial;
+ int tr_emsg_count;
+#endif
+};
+
+/* Maximum number of commands from + or -c arguments. */
+#define MAX_ARG_CMDS 10
+
+/* values for "window_layout" */
+#define WIN_HOR 1 /* "-o" horizontally split windows */
+#define WIN_VER 2 /* "-O" vertically split windows */
+#define WIN_TABS 3 /* "-p" windows on tab pages */
+
+/* Struct for various parameters passed between main() and other functions. */
+typedef struct
+{
+ int argc;
+ char **argv;
+
+ char_u *fname; /* first file to edit */
+
+ int evim_mode; /* started as "evim" */
+ char_u *use_vimrc; /* vimrc from -u argument */
+ int clean; /* --clean argument */
+
+ int n_commands; /* no. of commands from + or -c */
+ char_u *commands[MAX_ARG_CMDS]; /* commands from + or -c arg. */
+ char_u cmds_tofree[MAX_ARG_CMDS]; /* commands that need free() */
+ int n_pre_commands; /* no. of commands from --cmd */
+ char_u *pre_commands[MAX_ARG_CMDS]; /* commands from --cmd argument */
+
+ int edit_type; /* type of editing to do */
+ char_u *tagname; /* tag from -t argument */
+#ifdef FEAT_QUICKFIX
+ char_u *use_ef; /* 'errorfile' from -q argument */
+#endif
+
+ int want_full_screen;
+ int not_a_term; /* no warning for missing term? */
+ int tty_fail; /* exit if not a tty */
+ char_u *term; /* specified terminal name */
+#ifdef FEAT_CRYPT
+ int ask_for_key; /* -x argument */
+#endif
+ int no_swap_file; /* "-n" argument used */
+#ifdef FEAT_EVAL
+ int use_debug_break_level;
+#endif
+ int window_count; /* number of windows to use */
+ int window_layout; /* 0, WIN_HOR, WIN_VER or WIN_TABS */
+
+#ifdef FEAT_CLIENTSERVER
+ int serverArg; /* TRUE when argument for a server */
+ char_u *serverName_arg; /* cmdline arg for server name */
+ char_u *serverStr; /* remote server command */
+ char_u *serverStrEnc; /* encoding of serverStr */
+ char_u *servername; /* allocated name for our server */
+#endif
+#if !defined(UNIX)
+# define EXPAND_FILENAMES
+ int literal; /* don't expand file names */
+#endif
+#ifdef MSWIN
+ int full_path; /* file name argument was full path */
+#endif
+#ifdef FEAT_DIFF
+ int diff_mode; /* start with 'diff' set */
+#endif
+} mparm_T;
+
+/*
+ * Structure returned by get_lval() and used by set_var_lval().
+ * For a plain name:
+ * "name" points to the variable name.
+ * "exp_name" is NULL.
+ * "tv" is NULL
+ * For a magic braces name:
+ * "name" points to the expanded variable name.
+ * "exp_name" is non-NULL, to be freed later.
+ * "tv" is NULL
+ * For an index in a list:
+ * "name" points to the (expanded) variable name.
+ * "exp_name" NULL or non-NULL, to be freed later.
+ * "tv" points to the (first) list item value
+ * "li" points to the (first) list item
+ * "range", "n1", "n2" and "empty2" indicate what items are used.
+ * For an existing Dict item:
+ * "name" points to the (expanded) variable name.
+ * "exp_name" NULL or non-NULL, to be freed later.
+ * "tv" points to the dict item value
+ * "newkey" is NULL
+ * For a non-existing Dict item:
+ * "name" points to the (expanded) variable name.
+ * "exp_name" NULL or non-NULL, to be freed later.
+ * "tv" points to the Dictionary typval_T
+ * "newkey" is the key for the new item.
+ */
+typedef struct lval_S
+{
+ char_u *ll_name; /* start of variable name (can be NULL) */
+ char_u *ll_exp_name; /* NULL or expanded name in allocated memory. */
+ typval_T *ll_tv; /* Typeval of item being used. If "newkey"
+ isn't NULL it's the Dict to which to add
+ the item. */
+ listitem_T *ll_li; /* The list item or NULL. */
+ list_T *ll_list; /* The list or NULL. */
+ int ll_range; /* TRUE when a [i:j] range was used */
+ long ll_n1; /* First index for list */
+ long ll_n2; /* Second index for list range */
+ int ll_empty2; /* Second index is empty: [i:] */
+ dict_T *ll_dict; /* The Dictionary or NULL */
+ dictitem_T *ll_di; /* The dictitem or NULL */
+ char_u *ll_newkey; /* New key for Dict in alloc. mem or NULL. */
+ blob_T *ll_blob; /* The Blob or NULL */
+} lval_T;
+
+/* Structure used to save the current state. Used when executing Normal mode
+ * commands while in any other mode. */
+typedef struct {
+ int save_msg_scroll;
+ int save_restart_edit;
+ int save_msg_didout;
+ int save_State;
+ int save_insertmode;
+ int save_finish_op;
+ int save_opcount;
+ tasave_T tabuf;
+} save_state_T;
+
+typedef struct {
+ varnumber_T vv_prevcount;
+ varnumber_T vv_count;
+ varnumber_T vv_count1;
+} vimvars_save_T;