diff options
Diffstat (limited to 'editor.h')
| -rw-r--r-- | editor.h | 115 |
1 files changed, 115 insertions, 0 deletions
@@ -16,6 +16,118 @@ typedef struct EditorWin EditorWin; #include "ring-buffer.h" #include "map.h" + + +typedef union { + bool b; + int i; + const char *s; + void (*w)(Win*); /* generic window commands */ + void (*f)(Editor*); /* generic editor commands */ +} Arg; + +typedef struct { + char str[6]; /* UTF8 character or terminal escape code */ + int code; /* curses KEY_* constant */ +} Key; + +#define MAX_KEYS 2 +typedef Key KeyCombo[MAX_KEYS]; + +typedef struct { + KeyCombo key; + void (*func)(const Arg *arg); + const Arg arg; +} KeyBinding; + +typedef struct Mode Mode; +struct Mode { + Mode *parent; /* if no match is found in this mode, search will continue there */ + KeyBinding *bindings; /* NULL terminated array of keybindings for this mode */ + const char *name; /* descriptive, user facing name of the mode */ + bool isuser; /* whether this is a user or internal mode */ + bool common_prefix; /* whether the first key in this mode is always the same */ + void (*enter)(Mode *old); /* called right before the mode becomes active */ + void (*leave)(Mode *new); /* called right before the mode becomes inactive */ + bool (*unknown)(KeyCombo); /* called whenever a key combination is not found in this mode, + the return value determines whether parent modes will be searched */ + void (*input)(const char*, size_t); /* called whenever a key is not found in this mode and all its parent modes */ + void (*idle)(void); /* called whenever a certain idle time i.e. without any user input elapsed */ + time_t idle_timeout; /* idle time in seconds after which the registered function will be called */ + bool visual; /* whether text selection is possible in this mode */ +}; + +typedef struct { + char *name; /* is used to match against argv[0] to enable this config */ + Mode *mode; /* default mode in which the editor should start in */ + bool (*keypress)(Key*); /* called before any other keybindings are checked, + * return value decides whether key should be ignored */ +} Config; + +typedef struct { + int count; /* how many times should the command be executed? */ + Register *reg; /* always non-NULL, set to a default register */ + Filerange range; /* which part of the file should be affected by the operator */ + size_t pos; /* at which byte from the start of the file should the operation start? */ + bool linewise; /* should the changes always affect whole lines? */ + const Arg *arg; /* arbitrary arguments */ +} OperatorContext; + +typedef struct { + void (*func)(OperatorContext*); /* function implementing the operator logic */ +} Operator; + +typedef struct { + size_t (*cmd)(const Arg*); /* a custom movement based on user input from vis.c */ + size_t (*win)(Win*); /* a movement based on current window content from window.h */ + size_t (*txt)(Text*, size_t pos); /* a movement form text-motions.h */ + enum { + LINEWISE = 1 << 0, + CHARWISE = 1 << 1, + INCLUSIVE = 1 << 2, + EXCLUSIVE = 1 << 3, + IDEMPOTENT = 1 << 4, + JUMP = 1 << 5, + } type; + int count; +} Movement; + +typedef struct { + Filerange (*range)(Text*, size_t pos); /* a text object from text-objects.h */ + enum { + INNER, + OUTER, + } type; +} TextObject; + +typedef struct { /** collects all information until an operator is executed */ + int count; + bool linewise; + const Operator *op; + const Movement *movement; + const TextObject *textobj; + Register *reg; + int mark; + Key key; + Arg arg; +} Action; + +enum CmdOpt { /* option flags for command definitions */ + CMD_OPT_NONE, /* no option (default value) */ + CMD_OPT_FORCE, /* whether the command can be forced by appending '!' */ + CMD_OPT_ARGS, /* whether the command line should be parsed in to space + * separated arguments to placed into argv, otherwise argv[1] + * will contain the remaining command line unmodified */ +}; + +typedef struct { /* command definitions for the ':'-prompt */ + const char *name[3]; /* name and optional alias for the command */ + /* command logic called with a NULL terminated array of arguments. + * argv[0] will be the command name */ + bool (*cmd)(Filerange*, enum CmdOpt opt, const char *argv[]); + enum CmdOpt opt; /* command option flags */ +} Command; + enum Reg { REG_a, REG_b, @@ -124,6 +236,9 @@ struct Editor { Map *cmds; /* ":"-commands, used for unique prefix queries */ Map *options; /* ":set"-options */ Buffer buffer_repeat; /* holds data to repeat last insertion/replacement */ + + Action action; /* current action which is in progress */ + Action action_prev; /* last operator action used by the repeat '.' key */ }; Editor *editor_new(Ui*); |