/* vi:set ts=8 sts=4 sw=4: * * MzScheme interface by Sergey Khorev * Original work by Brent Fulgham * (Based on lots of help from Matthew Flatt) * * This consists of six parts: * 1. MzScheme interpreter main program * 2. Routines that handle the external interface between MzScheme and * Vim. * 3. MzScheme input/output handlers: writes output via [e]msg(). * 4. Implementation of the Vim Features for MzScheme * 5. Vim Window-related Manipulation Functions. * 6. Vim Buffer-related Manipulation Functions * * NOTES * 1. Memory, allocated with scheme_malloc*, need not to be freed explicitly, * garbage collector will do it self * 2. Requires at least NORMAL features. I can't imagine why one may want * to build with SMALL or TINY features but with MzScheme interface. * 3. I don't use K&R-style functions. Anyway, MzScheme headers are ANSI. */ #include "vim.h" #include "if_mzsch.h" /* Base data structures */ #define SCHEME_VIMBUFFERP(obj) SAME_TYPE(SCHEME_TYPE(obj), mz_buffer_type) #define SCHEME_VIMWINDOWP(obj) SAME_TYPE(SCHEME_TYPE(obj), mz_window_type) typedef struct { Scheme_Type tag; Scheme_Env *env; buf_T *buf; } vim_mz_buffer; #define INVALID_BUFFER_VALUE ((buf_T *)(-1)) typedef struct { Scheme_Type tag; win_T *win; } vim_mz_window; #define INVALID_WINDOW_VALUE ((win_T *)(-1)) /* * Prims that form MzScheme Vim interface */ typedef struct { Scheme_Closed_Prim *prim; char *name; int mina; /* arity information */ int maxa; } Vim_Prim; typedef struct { char *name; Scheme_Object *port; } Port_Info; /* info for closed prim */ /* * data have different means: * for do_eval it is char* * for do_apply is Apply_Onfo* * for do_load is Port_Info* */ typedef struct { void *data; Scheme_Env *env; } Cmd_Info; /* info for do_apply */ typedef struct { Scheme_Object *proc; int argc; Scheme_Object **argv; } Apply_Info; /* *======================================================================== * Vim-Control Commands *======================================================================== */ /* *======================================================================== * Utility functions for the vim/mzscheme interface *======================================================================== */ #ifdef HAVE_SANDBOX static Scheme_Object *sandbox_file_guard(int, Scheme_Object **); static Scheme_Object *sandbox_network_guard(int, Scheme_Object **); static void sandbox_check(); #endif /* Buffer-related commands */ static Scheme_Object *buffer_new(buf_T *buf); static Scheme_Object *get_buffer_by_name(void *, int, Scheme_Object **); static Scheme_Object *get_buffer_by_num(void *, int, Scheme_Object **); static Scheme_Object *get_buffer_count(void *, int, Scheme_Object **); static Scheme_Object *get_buffer_line(void *, int, Scheme_Object **); static Scheme_Object *get_buffer_line_list(void *, int, Scheme_Object **); static Scheme_Object *get_buffer_name(void *, int, Scheme_Object **); static Scheme_Object *get_buffer_num(void *, int, Scheme_Object **); static Scheme_Object *get_buffer_size(void *, int, Scheme_Object **); static Scheme_Object *get_curr_buffer(void *, int, Scheme_Object **); static Scheme_Object *get_next_buffer(void *, int, Scheme_Object **); static Scheme_Object *get_prev_buffer(void *, int, Scheme_Object **); static Scheme_Object *mzscheme_open_buffer(void *, int, Scheme_Object **); static Scheme_Object *set_buffer_line(void *, int, Scheme_Object **); static Scheme_Object *set_buffer_line_list(void *, int, Scheme_Object **); static Scheme_Object *insert_buffer_line_list(void *, int, Scheme_Object **); static Scheme_Object *get_range_start(void *, int, Scheme_Object **); static Scheme_Object *get_range_end(void *, int, Scheme_Object **); static Scheme_Object *get_buffer_namespace(void *, int, Scheme_Object **); static vim_mz_buffer *get_vim_curr_buffer(void); /* Window-related commands */ static Scheme_Object *window_new(win_T *win); static Scheme_Object *get_curr_win(void *, int, Scheme_Object **); static Scheme_Object *get_window_count(void *, int, Scheme_Object **); static Scheme_Object *get_window_by_num(void *, int, Scheme_Object **); static Scheme_Object *get_window_num(void *, int, Scheme_Object **); static Scheme_Object *get_window_buffer(void *, int, Scheme_Object **); static Scheme_Object *get_window_height(void *, int, Scheme_Object **); static Scheme_Object *set_window_height(void *, int, Scheme_Object **); #ifdef FEAT_VERTSPLIT static Scheme_Object *get_window_width(void *, int, Scheme_Object **); static Scheme_Object *set_window_width(void *, int, Scheme_Object **); #endif static Scheme_Object *get_cursor(void *, int, Scheme_Object **); static Scheme_Object *set_cursor(void *, int, Scheme_Object **); static Scheme_Object *get_window_list(void *, int, Scheme_Object **); static vim_mz_window *get_vim_curr_window(void); /* Vim-related commands */ static Scheme_Object *mzscheme_beep(void *, int, Scheme_Object **); static Scheme_Object *get_option(void *, int, Scheme_Object **); static Scheme_Object *set_option(void *, int, Scheme_Object **); static Scheme_Object *vim_command(void *, int, Scheme_Object **); static Scheme_Object *vim_eval(void *, int, Scheme_Object **); static Scheme_Object *vim_bufferp(void *data, int, Scheme_Object **); static Scheme_Object *vim_windowp(void *data, int, Scheme_Object **); static Scheme_Object *vim_buffer_validp(void *data, int, Scheme_Object **); static Scheme_Object *vim_window_validp(void *data, int, Scheme_Object **); /* *======================================================================== * Internal Function Prototypes *======================================================================== */ static int vim_error_check(void); static int do_mzscheme_command(exarg_T *, void *, Scheme_Closed_Prim *what); static void startup_mzscheme(void); static char *string_to_line(Scheme_Object *obj); static int mzscheme_io_init(void); static void mzscheme_interface_init(vim_mz_buffer *self); static void do_output(char *mesg, long len); static void do_printf(char *format, ...); static void do_flush(void); static Scheme_Object *_apply_thunk_catch_exceptions( Scheme_Object *, Scheme_Object **); static Scheme_Object *extract_exn_message(Scheme_Object *v); static Scheme_Object *do_eval(void *, int noargc, Scheme_Object **noargv); static Scheme_Object *do_load(void *, int noargc, Scheme_Object **noargv); static Scheme_Object *do_apply(void *, int noargc, Scheme_Object **noargv); static void register_vim_exn(Scheme_Env *env); static vim_mz_buffer *get_buffer_arg(const char *fname, int argnum, int argc, Scheme_Object **argv); static vim_mz_window *get_window_arg(const char *fname, int argnum, int argc, Scheme_Object **argv); static void add_vim_exn(Scheme_Env *env); static int line_in_range(linenr_T, buf_T *); static void check_line_range(linenr_T, buf_T *); static void mz_fix_cursor(int lo, int hi, int extra); static int eval_in_namespace(void *, Scheme_Closed_Prim *, Scheme_Env *, Scheme_Object **ret); static void make_modules(Scheme_Env *); #ifdef DYNAMIC_MZSCHEME static Scheme_Object *dll_scheme_eof; static Scheme_Object *dll_scheme_false; static Scheme_Object *dll_scheme_void; static Scheme_Object *dll_scheme_null; static Scheme_Object *dll_scheme_true; static Scheme_Thread **dll_scheme_current_thread_ptr; static void (**dll_scheme_console_printf_ptr)(char *str, ...); static void (**dll_scheme_console_output_ptr)(char *str, long len); static void (**dll_scheme_notify_multithread_ptr)(int on); static void *(*dll_GC_malloc)(size_t size_in_bytes); static void *(*dll_GC_malloc_atomic)(size_t size_in_bytes); static Scheme_Env *(*dll_scheme_basic_env)(void); static void (*dll_scheme_check_threads)(void); static void (*dll_scheme_register_static)(void *ptr, long size); static void (*dll_scheme_set_stack_base)(void *base, int no_auto_statics); static void (*dll_scheme_add_global)(const char *name, Scheme_Object *val, Scheme_Env *env); static void (*dll_scheme_add_global_symbol)(Scheme_Object *name, Scheme_Object *val, Scheme_Env *env); static Scheme_Object *(*dll_scheme_apply)(Scheme_Object *rator, int num_rands, Scheme_Object **rands); static Scheme_Object *(*dll_scheme_builtin_value)(const char *name); # if MZSCHEME_VERSION_MAJOR >= 299 static Scheme_Object *(*dll_scheme_byte_string_to_char_string)(Scheme_Object *s); # endif static void (*dll_scheme_close_input_port)(Scheme_Object *port); static void (*dll_scheme_count_lines)(Scheme_Object *port); static Scheme_Object *(*dll_scheme_current_continuation_marks)(void); static void (*dll_scheme_display)(Scheme_Object *obj, Scheme_Object *port); static char *(*dll_scheme_display_to_string)(Scheme_Object *obj, long *len); static int (*dll_scheme_eq)(Scheme_Object *obj1, Scheme_Object *obj2); static Scheme_Object *(*dll_scheme_do_eval)(Scheme_Object *obj, int _num_rands, Scheme_Object **rands, int val); static void (*dll_scheme_dont_gc_ptr)(void *p); static Scheme_Object *(*dll_scheme_eval)(Scheme_Object *obj, Scheme_Env *env); static Scheme_Object *(*dll_scheme_eval_string)(const char *str, Scheme_Env *env); static Scheme_Object *(*dll_scheme_eval_string_all)(const char *str, Scheme_Env *env, int all); static void (*dll_scheme_finish_primitive_module)(Scheme_Env *env); # if MZSCHEME_VERSION_MAJOR < 299 static char *(*dll_scheme_format)(char *format, int flen, int argc, Scheme_Object **argv, long *rlen); # else static char *(*dll_scheme_format_utf8)(char *format, int flen, int argc, Scheme_Object **argv, long *rlen); static Scheme_Object *(*dll_scheme_get_param)(Scheme_Config *c, int pos); # endif static void (*dll_scheme_gc_ptr_ok)(void *p); # if MZSCHEME_VERSION_MAJOR < 299 static char *(*dll_scheme_get_sized_string_output)(Scheme_Object *, long *len); # else static char *(*dll_scheme_get_sized_byte_string_output)(Scheme_Object *, long *len); # endif static Scheme_Object *(*dll_scheme_intern_symbol)(const char *name); static Scheme_Object *(*dll_scheme_lookup_global)(Scheme_Object *symbol, Scheme_Env *env); static Scheme_Object *(*dll_scheme_make_closed_prim_w_arity) (Scheme_Closed_Prim *prim, void *data, const char *name, mzshort mina, mzshort maxa); static Scheme_Object *(*dll_scheme_make_integer_value)(long i); static Scheme_Object *(*dll_scheme_make_namespace)(int argc, Scheme_Object *argv[]); static Scheme_Object *(*dll_scheme_make_pair)(Scheme_Object *car, Scheme_Object *cdr); static Scheme_Object *(*dll_scheme_make_prim_w_arity)(Scheme_Prim *prim, const char *name, mzshort mina, mzshort maxa); # if MZSCHEME_VERSION_MAJOR < 299 static Scheme_Object *(*dll_scheme_make_string)(const char *chars); static Scheme_Object *(*dll_scheme_make_string_output_port)(); # else static Scheme_Object *(*dll_scheme_make_byte_string)(const char *chars); static Scheme_Object *(*dll_scheme_make_byte_string_output_port)(); # endif static Scheme_Object *(*dll_scheme_make_struct_instance)(Scheme_Object *stype, int argc, Scheme_Object **argv); static Scheme_Object **(*dll_scheme_make_struct_names)(Scheme_Object *base, Scheme_Object *field_names, int flags, int *count_out); static Scheme_Object *(*dll_scheme_make_struct_type)(Scheme_Object *base, Scheme_Object *parent, Scheme_Object *inspector, int num_fields, int num_uninit_fields, Scheme_Object *uninit_val, Scheme_Object *properties # if MZSCHEME_VERSION_MAJOR >= 299 , Scheme_Object *guard # endif ); static Scheme_Object **(*dll_scheme_make_struct_values)( Scheme_Object *struct_type, Scheme_Object **names, int count, int flags); static Scheme_Type (*dll_scheme_make_type)(const char *name); static Scheme_Object *(*dll_scheme_make_vector)(int size, Scheme_Object *fill); static void *(*dll_scheme_malloc_fail_ok)(void *(*f)(size_t), size_t); static Scheme_Object *(*dll_scheme_open_input_file)(const char *name, const char *who); static Scheme_Env *(*dll_scheme_primitive_module)(Scheme_Object *name, Scheme_Env *for_env); static int (*dll_scheme_proper_list_length)(Scheme_Object *list); static void (*dll_scheme_raise)(Scheme_Object *exn); static Scheme_Object *(*dll_scheme_read)(Scheme_Object *port); static void (*dll_scheme_signal_error)(const char *msg, ...); static void (*dll_scheme_wrong_type)(const char *name, const char *expected, int which, int argc, Scheme_Object **argv); # if MZSCHEME_VERSION_MAJOR >= 299 static void (*dll_scheme_set_param)(Scheme_Config *c, int pos, Scheme_Object *o); static Scheme_Config *(*dll_scheme_current_config)(void); static Scheme_Object *(*dll_scheme_char_string_to_byte_string) (Scheme_Object *s); # endif /* arrays are imported directly */ # define scheme_eof dll_scheme_eof # define scheme_false dll_scheme_false # define scheme_void dll_scheme_void # define scheme_null dll_scheme_null # define scheme_true dll_scheme_true /* pointers are GetProceAddress'ed as pointers to pointer */ # define scheme_current_thread (*dll_scheme_current_thread_ptr) # define scheme_console_printf (*dll_scheme_console_printf_ptr) # define scheme_console_output (*dll_scheme_console_output_ptr) # define scheme_notify_multithread (*dll_scheme_notify_multithread_ptr) /* and functions in a usual way */ # define GC_malloc dll_GC_malloc # define GC_malloc_atomic dll_GC_malloc_atomic # define scheme_add_global dll_scheme_add_global # define scheme_add_global_symbol dll_scheme_add_global_symbol # define scheme_apply dll_scheme_apply # define scheme_basic_env dll_scheme_basic_env # define scheme_builtin_value dll_scheme_builtin_value # if MZSCHEME_VERSION_MAJOR >= 299 # define scheme_byte_string_to_char_string dll_scheme_byte_string_to_char_string # endif # define scheme_check_threads dll_scheme_check_threads # define scheme_close_input_port dll_scheme_close_input_port # define scheme_count_lines dll_scheme_count_lines # define scheme_current_continuation_marks \ dll_scheme_current_continuation_marks # define scheme_display dll_scheme_display # define scheme_display_to_string dll_scheme_display_to_string # define scheme_do_eval dll_scheme_do_eval # define scheme_dont_gc_ptr dll_scheme_dont_gc_ptr # define scheme_eq dll_scheme_eq # define scheme_eval dll_scheme_eval # define scheme_eval_string dll_scheme_eval_string # define scheme_eval_string_all dll_scheme_eval_string_all # define scheme_finish_primitive_module dll_scheme_finish_primitive_module # if MZSCHEME_VERSION_MAJOR < 299 # define scheme_format dll_scheme_format # else # define scheme_format_utf8 dll_scheme_format_utf8 # endif # define scheme_gc_ptr_ok dll_scheme_gc_ptr_ok # if MZSCHEME_VERSION_MAJOR < 299 # define scheme_get_sized_string_output dll_scheme_get_sized_string_output # else # define scheme_get_sized_byte_string_output \ dll_scheme_get_sized_byte_string_output # define scheme_get_param dll_scheme_get_param # endif # define scheme_intern_symbol dll_scheme_intern_symbol # define scheme_lookup_global dll_scheme_lookup_global # define scheme_make_closed_prim_w_arity dll_scheme_make_closed_prim_w_arity # define scheme_make_integer_value dll_scheme_make_integer_value # define scheme_make_namespace dll_scheme_make_namespace # define scheme_make_pair dll_scheme_make_pair # define scheme_make_prim_w_arity dll_scheme_make_prim_w_arity # if MZSCHEME_VERSION_MAJOR < 299 # define scheme_make_string dll_scheme_make_string # define scheme_make_string_output_port dll_scheme_make_string_output_port # else # define scheme_make_byte_string dll_scheme_make_byte_string # define scheme_make_byte_string_output_port \ dll_scheme_make_byte_string_output_port # endif # define scheme_make_struct_instance dll_scheme_make_struct_instance # define scheme_make_struct_names dll_scheme_make_struct_names # define scheme_make_struct_type dll_scheme_make_struct_type # define scheme_make_struct_values dll_scheme_make_struct_values # define scheme_make_type dll_scheme_make_type # define scheme_make_vector dll_scheme_make_vector # define scheme_malloc_fail_ok dll_scheme_malloc_fail_ok # define scheme_open_input_file dll_scheme_open_input_file # define scheme_primitive_module dll_scheme_primitive_module # define scheme_proper_list_length dll_scheme_proper_list_length # define scheme_raise dll_scheme_raise # define scheme_read dll_scheme_read # define scheme_register_static dll_scheme_register_static # define scheme_set_stack_base dll_scheme_set_stack_base # define scheme_signal_error dll_scheme_signal_error # define scheme_wrong_type dll_scheme_wrong_type # if MZSCHEME_VERSION_MAJOR >= 299 # define scheme_set_param dll_scheme_set_param # define scheme_current_config dll_scheme_current_config # define scheme_char_string_to_byte_string \ dll_scheme_char_string_to_byte_string # endif typedef struct { char *name; void **ptr; } Thunk_Info; static Thunk_Info mzgc_imports[] = { {"GC_malloc", (void **)&dll_GC_malloc}, {"GC_malloc_atomic", (void **)&dll_GC_malloc_atomic}, {NULL, NULL}}; static Thunk_Info mzsch_imports[] = { {"scheme_eof", (void **)&dll_scheme_eof}, {"scheme_false", (void **)&dll_scheme_false}, {"scheme_void", (void **)&dll_scheme_void}, {"scheme_null", (void **)&dll_scheme_null}, {"scheme_true", (void **)&dll_scheme_true}, {"scheme_current_thread", (void **)&dll_scheme_current_thread_ptr}, {"scheme_console_printf", (void **)&dll_scheme_console_printf_ptr}, {"scheme_console_output", (void **)&dll_scheme_console_output_ptr}, {"scheme_notify_multithread", (void **)&dll_scheme_notify_multithread_ptr}, {"scheme_add_global", (void **)&dll_scheme_add_global}, {"scheme_add_global_symbol", (void **)&dll_scheme_add_global_symbol}, {"scheme_apply", (void **)&dll_scheme_apply}, {"scheme_basic_env", (void **)&dll_scheme_basic_env}, # if MZSCHEME_VERSION_MAJOR >= 299 {"scheme_byte_string_to_char_string", (void **)&dll_scheme_byte_string_to_char_string}, # endif {"scheme_builtin_value", (void **)&dll_scheme_builtin_value}, {"scheme_check_threads", (void **)&dll_scheme_check_threads}, {"scheme_close_input_port", (void **)&dll_scheme_close_input_port}, {"scheme_count_lines", (void **)&dll_scheme_count_lines}, {"scheme_current_continuation_marks", (void **)&dll_scheme_current_continuation_marks}, {"scheme_display", (void **)&dll_scheme_display}, {"scheme_display_to_string", (void **)&dll_scheme_display_to_string}, {"scheme_do_eval", (void **)&dll_scheme_do_eval}, {"scheme_dont_gc_ptr", (void **)&dll_scheme_dont_gc_ptr}, {"scheme_eq", (void **)&dll_scheme_eq}, {"scheme_eval", (void **)&dll_scheme_eval}, {"scheme_eval_string", (void **)&dll_scheme_eval_string}, {"scheme_eval_string_all", (void **)&dll_scheme_eval_string_all}, {"scheme_finish_primitive_module", (void **)&dll_scheme_finish_primitive_module}, # if MZSCHEME_VERSION_MAJOR < 299 {"scheme_format", (void **)&dll_scheme_format}, # else {"scheme_format_utf8", (void **)&dll_scheme_format_utf8}, {"scheme_get_param", (void **)&dll_scheme_get_param}, #endif {"scheme_gc_ptr_ok", (void **)&dll_scheme_gc_ptr_ok}, # if MZSCHEME_VERSION_MAJOR < 299 {"scheme_get_sized_string_output", (void **)&dll_scheme_get_sized_string_output}, # else {"scheme_get_sized_byte_string_output", (void **)&dll_scheme_get_sized_byte_string_output}, #endif {"scheme_intern_symbol", (void **)&dll_scheme_intern_symbol}, {"scheme_lookup_global", (void **)&dll_scheme_lookup_global}, {"scheme_make_closed_prim_w_arity", (void **)&dll_scheme_make_closed_prim_w_arity}, {"scheme_make_integer_value", (void **)&dll_scheme_make_integer_value}, {"scheme_make_namespace", (void **)&dll_scheme_make_namespace}, {"scheme_make_pair", (void **)&dll_scheme_make_pair}, {"scheme_make_prim_w_arity", (void **)&dll_scheme_make_prim_w_arity}, # if MZSCHEME_VERSION_MAJOR < 299 {"scheme_make_string", (void **)&dll_scheme_make_string}, {"scheme_make_string_output_port", (void **)&dll_scheme_make_string_output_port}, # else {"scheme_make_byte_string", (void **)&dll_scheme_make_byte_string}, {"scheme_make_byte_string_output_port", (void **)&dll_scheme_make_byte_string_output_port}, # endif {"scheme_make_struct_instance", (void **)&dll_scheme_make_struct_instance}, {"scheme_make_struct_names", (void **)&dll_scheme_make_struct_names}, {"scheme_make_struct_type", (void **)&dll_scheme_make_struct_type}, {"scheme_make_struct_values", (void **)&dll_scheme_make_struct_values}, {"scheme_make_type", (void **)&dll_scheme_make_type}, {"scheme_make_vector", (void **)&dll_scheme_make_vector}, {"scheme_malloc_fail_ok", (void **)&dll_scheme_malloc_fail_ok}, {"scheme_open_input_file", (void **)&dll_scheme_open_input_file}, {"scheme_primitive_module", (void **)&dll_scheme_primitive_module}, {"scheme_proper_list_length", (void **)&dll_scheme_proper_list_length}, {"scheme_raise", (void **)&dll_scheme_raise}, {"scheme_read", (void **)&dll_scheme_read}, {"scheme_register_static", (void **)&dll_scheme_register_static}, {"scheme_set_stack_base", (void **)&dll_scheme_set_stack_base}, {"scheme_signal_error", (void **)&dll_scheme_signal_error}, {"scheme_wrong_type", (void **)&dll_scheme_wrong_type}, # if MZSCHEME_VERSION_MAJOR >= 299 {"scheme_set_param", (void **)&dll_scheme_set_param}, {"scheme_current_config", (void **)&dll_scheme_current_config}, {"scheme_char_string_to_byte_string", (void **)&dll_scheme_char_string_to_byte_string}, # endif {NULL, NULL}}; static HINSTANCE hMzGC = 0; static HINSTANCE hMzSch = 0; static void dynamic_mzscheme_end(void); static int mzscheme_runtime_link_init(char *sch_dll, char *gc_dll, int verbose); static int mzscheme_runtime_link_init(char *sch_dll, char *gc_dll, int verbose) { Thunk_Info *thunk = NULL; if (hMzGC && hMzSch) return OK; hMzSch = LoadLibrary(sch_dll); hMzGC = LoadLibrary(gc_dll); if (!hMzSch) { if (verbose) EMSG2(_(e_loadlib), sch_dll); return FAIL; } if (!hMzGC) { if (verbose) EMSG2(_(e_loadlib), gc_dll); return FAIL; } for (thunk = mzsch_imports; thunk->name; thunk++) { if ((*thunk->ptr = (void *)GetProcAddress(hMzSch, thunk->name)) == NULL) { FreeLibrary(hMzSch); hMzSch = 0; FreeLibrary(hMzGC); hMzGC = 0; if (verbose) EMSG2(_(e_loadfunc), thunk->name); return FAIL; } } for (thunk = mzgc_imports; thunk->name; thunk++) { if ((*thunk->ptr = (void *)GetProcAddress(hMzGC, thunk->name)) == NULL) { FreeLibrary(hMzSch); hMzSch = 0; FreeLibrary(hMzGC); hMzGC = 0; if (verbose) EMSG2(_(e_loadfunc), thunk->name); return FAIL; } } return OK; } int mzscheme_enabled(int verbose) { return mzscheme_runtime_link_init( DYNAMIC_MZSCH_DLL, DYNAMIC_MZGC_DLL, verbose) == OK; } static void dynamic_mzscheme_end(void) { if (hMzSch) { FreeLibrary(hMzSch); hMzSch = 0; } if (hMzGC) { FreeLibrary(hMzGC); hMzGC = 0; } } #endif /* DYNAMIC_MZSCHEME */ /* *======================================================================== * 1. MzScheme interpreter startup *======================================================================== */ static Scheme_Type mz_buffer_type; static Scheme_Type mz_window_type; static int initialized = 0; /* global environment */ static Scheme_Env *environment = NULL; /* output/error handlers */ static Scheme_Object *curout = NULL; static Scheme_Object *curerr = NULL; /* vim:exn exception */ static Scheme_Object *exn_catching_apply = NULL; static Scheme_Object *exn_p = NULL; static Scheme_Object *exn_message = NULL; static Scheme_Object *vim_exn = NULL; /* Vim Error exception */ /* values for exn:vim - constructor, predicate, accessors etc */ static Scheme_Object *vim_exn_names = NULL; static Scheme_Object *vim_exn_values = NULL; static long range_start; static long range_end; /* MzScheme threads scheduling stuff */ static int mz_threads_allow = 0; #if defined(FEAT_GUI_W32) static void CALLBACK timer_proc(HWND, UINT, UINT, DWORD); static UINT timer_id = 0; #elif defined(FEAT_GUI_GTK) static gint timer_proc(gpointer); static guint timer_id = 0; #elif defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA) static void timer_proc(XtPointer, XtIntervalId *); static XtIntervalId timer_id = (XtIntervalId)0; #elif defined(FEAT_GUI_MAC) pascal void timer_proc(EventLoopTimerRef, void *); static EventLoopTimerRef timer_id = NULL; static EventLoopTimerUPP timerUPP; #endif #ifndef FEAT_GUI_W32 /* Win32 console and Unix */ void mzvim_check_threads(void) { /* Last time MzScheme threads were scheduled */ static time_t mz_last_time = 0; if (mz_threads_allow && p_mzq > 0) { time_t now = time(NULL); if ((now - mz_last_time) * 1000 > p_mzq) { mz_last_time = now; scheme_check_threads(); } } } #endif #ifdef MZSCHEME_GUI_THREADS static void setup_timer(void); static void remove_timer(void); /* timers are presented in GUI only */ # if defined(FEAT_GUI_W32) static void CALLBACK timer_proc(HWND hwnd, UINT uMsg, UINT idEvent, DWORD dwTime) # elif defined(FEAT_GUI_GTK) /*ARGSUSED*/ static gint timer_proc(gpointer data) # elif defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA) /* ARGSUSED */ static void timer_proc(XtPointer timed_out, XtIntervalId *interval_id) # elif defined(FEAT_GUI_MAC) pascal void timer_proc(EventLoopTimerRef theTimer, void *userData) # endif { scheme_check_threads(); # if defined(FEAT_GUI_GTK) return TRUE; /* continue receiving notifications */ # elif defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA) /* renew timeout */ if (mz_threads_allow && p_mzq > 0) timer_id = XtAppAddTimeOut(app_context, p_mzq, timer_proc, NULL); # endif } static void setup_timer(void) { # if defined(FEAT_GUI_W32) timer_id = SetTimer(NULL, 0, p_mzq, timer_proc); # elif defined(FEAT_GUI_GTK) timer_id = gtk_timeout_add((guint32)p_mzq, (GtkFunction)timer_proc, NULL); # elif defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA) timer_id = XtAppAddTimeOut(app_context, p_mzq, timer_proc, NULL); # elif defined(FEAT_GUI_MAC) timerUPP = NewEventLoopTimerUPP(timer_proc); InstallEventLoopTimer(GetMainEventLoop(), p_mzq * kEventDurationMillisecond, p_mzq * kEventDurationMillisecond, timerUPP, NULL, &timer_id); # endif } static void remove_timer(void) { # if defined(FEAT_GUI_W32) KillTimer(NULL, timer_id); # elif defined(FEAT_GUI_GTK) gtk_timeout_remove(timer_id); # elif defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA) XtRemoveTimeOut(timer_id); # elif defined(FEAT_GUI_MAC) RemoveEventLoopTimer(timer_id); DisposeEventLoopTimerUPP(timerUPP); # endif timer_id = 0; } void mzvim_reset_timer(void) { if (timer_id != 0) remove_timer(); if (mz_threads_allow && p_mzq > 0 && gui.in_use) setup_timer(); } #endif /* MZSCHEME_GUI_THREADS */ static void notify_multithread(int on) { mz_threads_allow = on; #ifdef MZSCHEME_GUI_THREADS if (on && timer_id == 0 && p_mzq > 0 && gui.in_use) setup_timer(); if (!on && timer_id != 0) remove_timer(); #endif } void mzscheme_end(void) { #ifdef DYNAMIC_MZSCHEME dynamic_mzscheme_end(); #endif } static void startup_mzscheme(void) { Scheme_Object *proc_make_security_guard; scheme_set_stack_base(NULL, 1); MZ_REGISTER_STATIC(environment); MZ_REGISTER_STATIC(curout); MZ_REGISTER_STATIC(curerr); MZ_REGISTER_STATIC(exn_catching_apply); MZ_REGISTER_STATIC(exn_p); MZ_REGISTER_STATIC(exn_message); MZ_REGISTER_STATIC(vim_exn); MZ_REGISTER_STATIC(vim_exn_names); MZ_REGISTER_STATIC(vim_exn_values); environment = scheme_basic_env(); /* redirect output */ scheme_console_output = do_output; scheme_console_printf = do_printf; #ifdef MZSCHEME_COLLECTS /* setup 'current-library-collection-paths' parameter */ scheme_set_param(scheme_config, MZCONFIG_COLLECTION_PATHS, scheme_make_pair(scheme_make_string(MZSCHEME_COLLECTS), scheme_null)); #endif #ifdef HAVE_SANDBOX /* setup sandbox guards */ proc_make_security_guard = scheme_lookup_global( scheme_intern_symbol("make-security-guard"), environment); if (proc_make_security_guard != NULL) { Scheme_Object *args[3]; Scheme_Object *guard; args[0] = scheme_get_param(scheme_config, MZCONFIG_SECURITY_GUARD); args[1] = scheme_make_prim_w_arity(sandbox_file_guard, "sandbox-file-guard", 3, 3); args[2] = scheme_make_prim_w_arity(sandbox_network_guard, "sandbox-network-guard", 4, 4); guard = scheme_apply(proc_make_security_guard, 3, args); scheme_set_param(scheme_config, MZCONFIG_SECURITY_GUARD, guard); } #endif /* Create buffer and window types for use in Scheme code */ mz_buffer_type = scheme_make_type(""); mz_window_type = scheme_make_type(""); register_vim_exn(environment); make_modules(environment); /* * setup callback to receive notifications * whether thread scheduling is (or not) required */ scheme_notify_multithread = notify_multithread; initialized = 1; } /* * This routine is called for each new invocation of MzScheme * to make sure things are properly initialized. */ static int mzscheme_init(void) { int do_require = FALSE; if (!initialized) { do_require = TRUE; #ifdef DYNAMIC_MZSCHEME if (!mzscheme_enabled(TRUE)) { EMSG(_("???: Sorry, this command is disabled, the MzScheme library could not be loaded.")); return -1; } #endif startup_mzscheme(); if (mzscheme_io_init()) return -1; } /* recreate ports each call effectivelly clearing these ones */ curout = scheme_make_string_output_port(); curerr = scheme_make_string_output_port(); scheme_set_param(scheme_config, MZCONFIG_OUTPUT_PORT, curout); scheme_set_param(scheme_config, MZCONFIG_ERROR_PORT, curerr); if (do_require) { /* auto-instantiate in basic env */ eval_in_namespace("(require (prefix vimext: vimext))", do_eval, environment, NULL); } return 0; } /* * This routine fills the namespace with various important routines that can * be used within MzScheme. */ static void mzscheme_interface_init(vim_mz_buffer *mzbuff) { Scheme_Object *attach; mzbuff->env = (Scheme_Env *)scheme_make_namespace(0, NULL); /* * attach instantiated modules from global namespace * so they can be easily instantiated in the buffer namespace */ attach = scheme_lookup_global( scheme_intern_symbol("namespace-attach-module"), environment); if (attach != NULL) { Scheme_Object *ret; Scheme_Object *args[2]; args[0] = (Scheme_Object *)environment; args[1] = scheme_intern_symbol("vimext"); ret = (Scheme_Object *)mzvim_apply(attach, 2, args); } add_vim_exn(mzbuff->env); } /* *======================================================================== * 2. External Interface *======================================================================== */ /* * Evaluate command in namespace with exception handling */ static int eval_in_namespace(void *data, Scheme_Closed_Prim *what, Scheme_Env *env, Scheme_Object **ret) { Scheme_Object *value; Scheme_Object *exn; Cmd_Info info; /* closure info */ info.data = data; info.env = env; scheme_set_param(scheme_config, MZCONFIG_ENV, (Scheme_Object *) env); /* * ensure all evaluations will be in current buffer namespace, * the second argument to scheme_eval_string isn't enough! */ value = _apply_thunk_catch_exceptions( scheme_make_closed_prim_w_arity(what, &info, "mzvim", 0, 0), &exn); if (!value) { value = extract_exn_message(exn); /* Got an exn? */ if (value) { scheme_display(value, curerr); /* Send to stderr-vim */ do_flush(); } /* `raise' was called on some arbitrary value */ return FAIL; } if (ret != NULL) /* if pointer to retval supported give it up */ *ret = value; /* Print any result, as long as it's not a void */ else if (!SCHEME_VOIDP(value)) scheme_display(value, curout); /* Send to stdout-vim */ do_flush(); return OK; } /* :mzscheme */ static int do_mzscheme_command(exarg_T *eap, void *data, Scheme_Closed_Prim *what) { if (mzscheme_init()) return FAIL; range_start = eap->line1; range_end = eap->line2; return eval_in_namespace(data, what, get_vim_curr_buffer()->env, NULL); } /* * Routine called by VIM when deleting a buffer */ void mzscheme_buffer_free(buf_T *buf) { if (buf->b_mzscheme_ref) { vim_mz_buffer *bp; bp = buf->b_mzscheme_ref; bp->buf = INVALID_BUFFER_VALUE; buf->b_mzscheme_ref = NULL; scheme_gc_ptr_ok(bp); } } /* * Routine called by VIM when deleting a Window */ void mzscheme_window_free(win_T *win) { if (win->w_mzscheme_ref) { vim_mz_window *wp; wp = win->w_mzscheme_ref; wp->win = INVALID_WINDOW_VALUE; win->w_mzscheme_ref = NULL; scheme_gc_ptr_ok(wp); } } /* * ":mzscheme" (or ":mz") */ void ex_mzscheme(exarg_T *eap) { char_u *script; script = script_get(eap, eap->arg); if (!eap->skip) { if (script == NULL) do_mzscheme_command(eap, eap->arg, do_eval); else { do_mzscheme_command(eap, script, do_eval); vim_free(script); } } } /* eval MzScheme string */ void * mzvim_eval_string(char_u *str) { Scheme_Object *ret = NULL; if (mzscheme_init()) return FAIL; eval_in_namespace(str, do_eval, get_vim_curr_buffer()->env, &ret); return ret; } /* * apply MzScheme procedure with arguments, * handling errors */ Scheme_Object * mzvim_apply(Scheme_Object *proc, int argc, Scheme_Object **argv) { Apply_Info data; Scheme_Object *ret = NULL; if (mzscheme_init()) return FAIL; data.proc = proc; data.argc = argc; data.argv = argv; eval_in_namespace(&data, do_apply, get_vim_curr_buffer()->env, &ret); return ret; } static Scheme_Object * do_load(void *data, int noargc, Scheme_Object **noargv) { Cmd_Info *info = (Cmd_Info *)data; Scheme_Object *result = scheme_void; Scheme_Object *expr; char_u *file = scheme_malloc_fail_ok( scheme_malloc_atomic, MAXPATHL + 1); Port_Info *pinfo = (Port_Info *)(info->data); /* make Vim expansion */ expand_env((char_u *)pinfo->name, file, MAXPATHL); /* scheme_load looks strange working with namespaces and error handling*/ pinfo->port = scheme_open_input_file(file, "mzfile"); scheme_count_lines(pinfo->port); /* to get accurate read error location*/ /* Like REPL but print only last result */ while (!SCHEME_EOFP(expr = scheme_read(pinfo->port))) result = scheme_eval(expr, info->env); /* errors will be caught in do_mzscheme_comamnd and ex_mzfile */ scheme_close_input_port(pinfo->port); pinfo->port = NULL; return result; } /* :mzfile */ void ex_mzfile(exarg_T *eap) { Port_Info pinfo; pinfo.name = (char *)eap->arg; pinfo.port = NULL; if (do_mzscheme_command(eap, &pinfo, do_load) != OK && pinfo.port != NULL) /* looks like port was not closed */ scheme_close_input_port(pinfo.port); } /* *======================================================================== * Exception handling code -- cribbed form the MzScheme sources and * Matthew Flatt's "Inside PLT MzScheme" document. *======================================================================== */ static void init_exn_catching_apply(void) { if (!exn_catching_apply) { char *e = "(lambda (thunk) " "(with-handlers ([void (lambda (exn) (cons #f exn))]) " "(cons #t (thunk))))"; /* make sure we have a namespace with the standard syntax: */ Scheme_Env *env = (Scheme_Env *)scheme_make_namespace(0, NULL); add_vim_exn(env); exn_catching_apply = scheme_eval_string(e, env); exn_p = scheme_lookup_global(scheme_intern_symbol("exn?"), env); exn_message = scheme_lookup_global( scheme_intern_symbol("exn-message"), env); } } /* * This function applies a thunk, returning the Scheme value if there's * no exception, otherwise returning NULL and setting *exn to the raised * value (usually an exn structure). */ static Scheme_Object * _apply_thunk_catch_exceptions(Scheme_Object *f, Scheme_Object **exn) { Scheme_Object *v; init_exn_catching_apply(); v = _scheme_apply(exn_catching_apply, 1, &f); /* v is a pair: (cons #t value) or (cons #f exn) */ if (SCHEME_TRUEP(SCHEME_CAR(v))) return SCHEME_CDR(v); else { *exn = SCHEME_CDR(v); return NULL; } } static Scheme_Object * extract_exn_message(Scheme_Object *v) { init_exn_catching_apply(); if (SCHEME_TRUEP(_scheme_apply(exn_p, 1, &v))) return _scheme_apply(exn_message, 1, &v); else return NULL; /* Not an exn structure */ } static Scheme_Object * do_eval(void *s, int noargc, Scheme_Object **noargv) { Cmd_Info *info = (Cmd_Info *)s; return scheme_eval_string_all((char *)(info->data), info->env, TRUE); } static Scheme_Object * do_apply(void *a, int noargc, Scheme_Object **noargv) { Apply_Info *info = (Apply_Info *)(((Cmd_Info *)a)->data); return scheme_apply(info->proc, info->argc, info->argv); } /* *======================================================================== * 3. MzScheme I/O Handlers *======================================================================== */ static void do_intrnl_output(char *mesg, long len, int error) { char *p, *prev; prev = mesg; p = strchr(prev, '\n'); while (p) { *p = '\0'; if (error) EMSG(prev); else MSG(prev); prev = p + 1; p = strchr(prev, '\n'); } if (error) EMSG(prev); else MSG(prev); } static void do_output(char *mesg, long len) { do_intrnl_output(mesg, len, 0); } static void do_err_output(char *mesg, long len) { do_intrnl_output(mesg, len, 1); } static void do_printf(char *format, ...) { do_intrnl_output(format, STRLEN(format), 1); } static void do_flush(void) { char *buff; long length; buff = scheme_get_sized_string_output(curerr, &length); if (length) { do_err_output(buff, length); return; } buff = scheme_get_sized_string_output(curout, &length); if (length) do_output(buff, length); } static int mzscheme_io_init(void) { /* Nothing needed so far... */ return 0; } /* *======================================================================== * 4. Implementation of the Vim Features for MzScheme *======================================================================== */ /* (command {command-string}) */ static Scheme_Object * vim_command(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; char *cmd = SCHEME_STR_VAL(GUARANTEE_STRING(prim->name, 0)); /* may be use do_cmdline_cmd? */ do_cmdline((char_u *)cmd, NULL, NULL, DOCMD_NOWAIT|DOCMD_VERBOSE); update_screen(VALID); raise_if_error(); return scheme_void; } /* (eval {expr-string}) */ static Scheme_Object * vim_eval(void *data, int argc, Scheme_Object **argv) { #ifdef FEAT_EVAL Vim_Prim *prim = (Vim_Prim *)data; char *expr; char *str; Scheme_Object *result; expr = SCHEME_STR_VAL(GUARANTEE_STRING(prim->name, 0)); str = (char *)eval_to_string((char_u *)expr, NULL); if (str == NULL) raise_vim_exn(_("invalid expression")); result = scheme_make_string(str); vim_free(str); return result; #else raise_vim_exn(_("expressions disabled at compile time")); /* unreachable */ return scheme_false; #endif } /* (range-start) */ static Scheme_Object * get_range_start(void *data, int argc, Scheme_Object **argv) { return scheme_make_integer(range_start); } /* (range-end) */ static Scheme_Object * get_range_end(void *data, int argc, Scheme_Object **argv) { return scheme_make_integer(range_end); } /* (beep) */ static Scheme_Object * mzscheme_beep(void *data, int argc, Scheme_Object **argv) { vim_beep(); return scheme_void; } static Scheme_Object *M_global = NULL; /* (get-option {option-name}) [buffer/window] */ static Scheme_Object * get_option(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; char_u *name; long value; char_u *strval; int rc; Scheme_Object *rval; int opt_flags = 0; buf_T *save_curb = curbuf; win_T *save_curw = curwin; name = (char_u *)SCHEME_STR_VAL(GUARANTEE_STRING(prim->name, 0)); if (argc > 1) { if (M_global == NULL) { MZ_REGISTER_STATIC(M_global); M_global = scheme_intern_symbol("global"); } if (argv[1] == M_global) opt_flags = OPT_GLOBAL; else if (SCHEME_VIMBUFFERP(argv[1])) { curbuf = get_valid_buffer(argv[1]); opt_flags = OPT_LOCAL; } else if (SCHEME_VIMWINDOWP(argv[1])) { win_T *win = get_valid_window(argv[1]); curwin = win; curbuf = win->w_buffer; opt_flags = OPT_LOCAL; } else scheme_wrong_type(prim->name, "vim-buffer/window", 1, argc, argv); } rc = get_option_value(name, &value, &strval, opt_flags); curbuf = save_curb; curwin = save_curw; switch (rc) { case 1: return scheme_make_integer_value(value); case 0: rval = scheme_make_string(strval); vim_free(strval); return rval; case -1: case -2: raise_vim_exn(_("hidden option")); case -3: raise_vim_exn(_("unknown option")); } /* unreachable */ return scheme_void; } /* (set-option {option-changing-string} [buffer/window]) */ static Scheme_Object * set_option(void *data, int argc, Scheme_Object **argv) { char_u *cmd; int opt_flags = 0; buf_T *save_curb = curbuf; win_T *save_curw = curwin; Vim_Prim *prim = (Vim_Prim *)data; GUARANTEE_STRING(prim->name, 0); if (argc > 1) { if (M_global == NULL) { MZ_REGISTER_STATIC(M_global); M_global = scheme_intern_symbol("global"); } if (argv[1] == M_global) opt_flags = OPT_GLOBAL; else if (SCHEME_VIMBUFFERP(argv[1])) { curbuf = get_valid_buffer(argv[1]); opt_flags = OPT_LOCAL; } else if (SCHEME_VIMWINDOWP(argv[1])) { win_T *win = get_valid_window(argv[1]); curwin = win; curbuf = win->w_buffer; opt_flags = OPT_LOCAL; } else scheme_wrong_type(prim->name, "vim-buffer/window", 1, argc, argv); } /* do_set can modify cmd, make copy */ cmd = vim_strsave((char_u *)SCHEME_STR_VAL(argv[0])); do_set(cmd, opt_flags); vim_free(cmd); update_screen(NOT_VALID); curbuf = save_curb; curwin = save_curw; raise_if_error(); return scheme_void; } /* *=========================================================================== * 5. Vim Window-related Manipulation Functions *=========================================================================== */ /* (curr-win) */ static Scheme_Object * get_curr_win(void *data, int argc, Scheme_Object **argv) { return (Scheme_Object *)get_vim_curr_window(); } /* (win-count) */ static Scheme_Object * get_window_count(void *data, int argc, Scheme_Object **argv) { win_T *w; int n = 0; for (w = firstwin; w != NULL; w = w->w_next) ++n; return scheme_make_integer(n); } /* (get-win-list [buffer]) */ static Scheme_Object * get_window_list(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf; Scheme_Object *list; win_T *w; buf = get_buffer_arg(prim->name, 0, argc, argv); list = scheme_null; for (w = firstwin; w != NULL; w = w->w_next) if (w->w_buffer == buf->buf) list = scheme_make_pair(window_new(w), list); return list; } static Scheme_Object * window_new(win_T *win) { vim_mz_window *self; /* We need to handle deletion of windows underneath us. * If we add a "w_mzscheme_ref" field to the win_T structure, * then we can get at it in win_free() in vim. * * On a win_free() we set the Scheme object's win_T *field * to an invalid value. We trap all uses of a window * object, and reject them if the win_T *field is invalid. */ if (win->w_mzscheme_ref != NULL) return win->w_mzscheme_ref; self = scheme_malloc_fail_ok(scheme_malloc, sizeof(vim_mz_window)); vim_memset(self, 0, sizeof(vim_mz_window)); scheme_dont_gc_ptr(self); /* because win isn't visible to GC */ win->w_mzscheme_ref = self; self->win = win; self->tag = mz_window_type; return (Scheme_Object *)(self); } /* (get-win-num [window]) */ static Scheme_Object * get_window_num(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; win_T *win = get_window_arg(prim->name, 0, argc, argv)->win; int nr = 1; win_T *wp; for (wp = firstwin; wp != win; wp = wp->w_next) ++nr; return scheme_make_integer(nr); } /* (get-win-by-num {windownum}) */ static Scheme_Object * get_window_by_num(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; win_T *win; int fnum; fnum = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); if (fnum < 1) scheme_signal_error(_("window index is out of range")); for (win = firstwin; win != NULL; win = win->w_next, --fnum) if (fnum == 1) /* to be 1-based */ return window_new(win); return scheme_false; } /* (get-win-buffer [window]) */ static Scheme_Object * get_window_buffer(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_window *win = get_window_arg(prim->name, 0, argc, argv); return buffer_new(win->win->w_buffer); } /* (get-win-height [window]) */ static Scheme_Object * get_window_height(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_window *win = get_window_arg(prim->name, 0, argc, argv); return scheme_make_integer(win->win->w_height); } /* (set-win-height {height} [window]) */ static Scheme_Object * set_window_height(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_window *win; win_T *savewin; int height; win = get_window_arg(prim->name, 1, argc, argv); height = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif savewin = curwin; curwin = win->win; win_setheight(height); curwin = savewin; raise_if_error(); return scheme_void; } #ifdef FEAT_VERTSPLIT /* (get-win-width [window]) */ static Scheme_Object * get_window_width(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_window *win = get_window_arg(prim->name, 0, argc, argv); return scheme_make_integer(W_WIDTH(win->win)); } /* (set-win-width {width} [window]) */ static Scheme_Object * set_window_width(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_window *win; win_T *savewin; int width = 0; win = get_window_arg(prim->name, 1, argc, argv); width = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); # ifdef FEAT_GUI need_mouse_correct = TRUE; # endif savewin = curwin; curwin = win->win; win_setwidth(width); curwin = savewin; raise_if_error(); return scheme_void; } #endif /* (get-cursor [window]) -> (line . col) */ static Scheme_Object * get_cursor(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_window *win; pos_T pos; win = get_window_arg(prim->name, 0, argc, argv); pos = win->win->w_cursor; return scheme_make_pair(scheme_make_integer_value((long)pos.lnum), scheme_make_integer_value((long)pos.col + 1)); } /* (set-cursor (line . col) [window]) */ static Scheme_Object * set_cursor(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_window *win; long lnum = 0; long col = 0; #ifdef HAVE_SANDBOX sandbox_check(); #endif win = get_window_arg(prim->name, 1, argc, argv); GUARANTEE_PAIR(prim->name, 0); if (!SCHEME_INTP(SCHEME_CAR(argv[0])) || !SCHEME_INTP(SCHEME_CDR(argv[0]))) scheme_wrong_type(prim->name, "integer pair", 0, argc, argv); lnum = SCHEME_INT_VAL(SCHEME_CAR(argv[0])); col = SCHEME_INT_VAL(SCHEME_CDR(argv[0])) - 1; check_line_range(lnum, win->win->w_buffer); /* don't know how to catch invalid column value */ win->win->w_cursor.lnum = lnum; win->win->w_cursor.col = col; update_screen(VALID); raise_if_error(); return scheme_void; } /* *=========================================================================== * 6. Vim Buffer-related Manipulation Functions * Note that each buffer should have its own private namespace. *=========================================================================== */ /* (open-buff {filename}) */ static Scheme_Object * mzscheme_open_buffer(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; char *fname; int num = 0; Scheme_Object *onum; #ifdef HAVE_SANDBOX sandbox_check(); #endif fname = SCHEME_STR_VAL(GUARANTEE_STRING(prim->name, 0)); /* TODO make open existing file */ num = buflist_add(fname, BLN_LISTED | BLN_CURBUF); if (num == 0) raise_vim_exn(_("couldn't open buffer")); onum = scheme_make_integer(num); return get_buffer_by_num(data, 1, &onum); } /* (get-buff-by-num {buffernum}) */ static Scheme_Object * get_buffer_by_num(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; buf_T *buf; int fnum; fnum = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); for (buf = firstbuf; buf; buf = buf->b_next) if (buf->b_fnum == fnum) return buffer_new(buf); return scheme_false; } /* (get-buff-by-name {buffername}) */ static Scheme_Object * get_buffer_by_name(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; buf_T *buf; char_u *fname; fname = SCHEME_STR_VAL(GUARANTEE_STRING(prim->name, 0)); for (buf = firstbuf; buf; buf = buf->b_next) if (buf->b_ffname == NULL || buf->b_sfname == NULL) /* empty string */ { if (fname[0] == NUL) return buffer_new(buf); } else if (!fnamecmp(buf->b_ffname, fname) || !fnamecmp(buf->b_sfname, fname)) /* either short or long filename matches */ return buffer_new(buf); return scheme_false; } /* (get-next-buff [buffer]) */ static Scheme_Object * get_next_buffer(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; buf_T *buf = get_buffer_arg(prim->name, 0, argc, argv)->buf; if (buf->b_next == NULL) return scheme_false; else return buffer_new(buf->b_next); } /* (get-prev-buff [buffer]) */ static Scheme_Object * get_prev_buffer(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; buf_T *buf = get_buffer_arg(prim->name, 0, argc, argv)->buf; if (buf->b_prev == NULL) return scheme_false; else return buffer_new(buf->b_prev); } /* (get-buff-num [buffer]) */ static Scheme_Object * get_buffer_num(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf = get_buffer_arg(prim->name, 0, argc, argv); return scheme_make_integer(buf->buf->b_fnum); } /* (buff-count) */ static Scheme_Object * get_buffer_count(void *data, int argc, Scheme_Object **argv) { buf_T *b; int n = 0; for (b = firstbuf; b; b = b->b_next) ++n; return scheme_make_integer(n); } /* (get-buff-name [buffer]) */ static Scheme_Object * get_buffer_name(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf = get_buffer_arg(prim->name, 0, argc, argv); return scheme_make_string(buf->buf->b_ffname); } /* (curr-buff) */ static Scheme_Object * get_curr_buffer(void *data, int argc, Scheme_Object **argv) { return (Scheme_Object *)get_vim_curr_buffer(); } static Scheme_Object * buffer_new(buf_T *buf) { vim_mz_buffer *self; /* We need to handle deletion of buffers underneath us. * If we add a "b_mzscheme_ref" field to the buf_T structure, * then we can get at it in buf_freeall() in vim. */ if (buf->b_mzscheme_ref) return buf->b_mzscheme_ref; self = scheme_malloc_fail_ok(scheme_malloc, sizeof(vim_mz_buffer)); vim_memset(self, 0, sizeof(vim_mz_buffer)); scheme_dont_gc_ptr(self); /* because buf isn't visible to GC */ buf->b_mzscheme_ref = self; self->buf = buf; self->tag = mz_buffer_type; mzscheme_interface_init(self); /* Set up namespace */ return (Scheme_Object *)(self); } /* * (get-buff-size [buffer]) * * Get the size (number of lines) in the current buffer. */ static Scheme_Object * get_buffer_size(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf = get_buffer_arg(prim->name, 0, argc, argv); return scheme_make_integer(buf->buf->b_ml.ml_line_count); } /* * (get-buff-line {linenr} [buffer]) * * Get a line from the specified buffer. The line number is * in Vim format (1-based). The line is returned as a MzScheme * string object. */ static Scheme_Object * get_buffer_line(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf; int linenr; char *line; buf = get_buffer_arg(prim->name, 1, argc, argv); linenr = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); line = ml_get_buf(buf->buf, (linenr_T)linenr, FALSE); raise_if_error(); return scheme_make_string(line); } /* * (get-buff-line-list {start} {end} [buffer]) * * Get a list of lines from the specified buffer. The line numbers * are in Vim format (1-based). The range is from lo up to, but not * including, hi. The list is returned as a list of string objects. */ static Scheme_Object * get_buffer_line_list(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf; int i, hi, lo, n; Scheme_Object *list; buf = get_buffer_arg(prim->name, 2, argc, argv); list = scheme_null; hi = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 1)); lo = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); /* * Handle some error conditions */ if (lo < 0) lo = 0; if (hi < 0) hi = 0; if (hi < lo) hi = lo; n = hi - lo; for (i = n; i >= 0; --i) { Scheme_Object *str = scheme_make_string( (char *)ml_get_buf(buf->buf, (linenr_T)(lo+i), FALSE)); raise_if_error(); /* Set the list item */ list = scheme_make_pair(str, list); } return list; } /* * (set-buff-line {linenr} {string/#f} [buffer]) * * Replace a line in the specified buffer. The line number is * in Vim format (1-based). The replacement line is given as * an MzScheme string object. The object is checked for validity * and correct format. An exception is thrown if the values are not * the correct format. * * It returns a Scheme Object that indicates the length of the * string changed. */ static Scheme_Object * set_buffer_line(void *data, int argc, Scheme_Object **argv) { /* First of all, we check the the of the supplied MzScheme object. * There are three cases: * 1. #f - this is a deletion. * 2. A string - this is a replacement. * 3. Anything else - this is an error. */ Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf; Scheme_Object *line; char *save; buf_T *savebuf; int n; #ifdef HAVE_SANDBOX sandbox_check(); #endif n = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); if (!SCHEME_STRINGP(argv[1]) && !SCHEME_FALSEP(argv[1])) scheme_wrong_type(prim->name, "string or #f", 1, argc, argv); line = argv[1]; buf = get_buffer_arg(prim->name, 2, argc, argv); check_line_range(n, buf->buf); if (SCHEME_FALSEP(line)) { savebuf = curbuf; curbuf = buf->buf; if (u_savedel((linenr_T)n, 1L) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot save undo information")); } else if (ml_delete((linenr_T)n, FALSE) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot delete line")); } deleted_lines_mark((linenr_T)n, 1L); if (buf->buf == curwin->w_buffer) mz_fix_cursor(n, n + 1, -1); curbuf = savebuf; raise_if_error(); return scheme_void; } /* Otherwise it's a line */ save = string_to_line(line); savebuf = curbuf; curbuf = buf->buf; if (u_savesub((linenr_T)n) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot save undo information")); } else if (ml_replace((linenr_T)n, (char_u *)save, TRUE) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot replace line")); } else changed_bytes((linenr_T)n, 0); curbuf = savebuf; raise_if_error(); return scheme_void; } /* * (set-buff-line-list {start} {end} {string-list/#f/null} [buffer]) * * Replace a range of lines in the specified buffer. The line numbers are in * Vim format (1-based). The range is from lo up to, but not including, hi. * The replacement lines are given as a Scheme list of string objects. The * list is checked for validity and correct format. * * Errors are returned as a value of FAIL. The return value is OK on success. * If OK is returned and len_change is not NULL, *len_change is set to the * change in the buffer length. */ static Scheme_Object * set_buffer_line_list(void *data, int argc, Scheme_Object **argv) { /* First of all, we check the type of the supplied MzScheme object. * There are three cases: * 1. #f - this is a deletion. * 2. A list - this is a replacement. * 3. Anything else - this is an error. */ Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf; Scheme_Object *line_list; Scheme_Object *line; Scheme_Object *rest; char **array; buf_T *savebuf; int i, old_len, new_len, hi, lo; long extra; #ifdef HAVE_SANDBOX sandbox_check(); #endif lo = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); hi = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 1)); if (!SCHEME_PAIRP(argv[2]) && !SCHEME_FALSEP(argv[2]) && !SCHEME_NULLP(argv[2])) scheme_wrong_type(prim->name, "list or #f", 2, argc, argv); line_list = argv[2]; buf = get_buffer_arg(prim->name, 3, argc, argv); old_len = hi - lo; if (old_len < 0) /* process inverse values wisely */ { i = lo; lo = hi; hi = i; old_len = -old_len; } extra = 0; check_line_range(lo, buf->buf); /* inclusive */ check_line_range(hi - 1, buf->buf); /* exclisive */ if (SCHEME_FALSEP(line_list) || SCHEME_NULLP(line_list)) { savebuf = curbuf; curbuf = buf->buf; if (u_savedel((linenr_T)lo, (long)old_len) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot save undo information")); } else { for (i = 0; i < old_len; i++) if (ml_delete((linenr_T)lo, FALSE) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot delete line")); } deleted_lines_mark((linenr_T)lo, (long)old_len); if (buf->buf == curwin->w_buffer) mz_fix_cursor(lo, hi, -old_len); } curbuf = savebuf; raise_if_error(); return scheme_void; } /* List */ new_len = scheme_proper_list_length(line_list); if (new_len < 0) /* improper or cyclic list */ scheme_wrong_type(prim->name, "proper list", 2, argc, argv); /* Using MzScheme allocator, so we don't need to free this and * can safely keep pointers to GC collected strings */ array = (char **)scheme_malloc_fail_ok(scheme_malloc, (unsigned)(new_len * sizeof(char *))); rest = line_list; for (i = 0; i < new_len; ++i) { line = SCHEME_CAR(rest); rest = SCHEME_CDR(rest); if (!SCHEME_STRINGP(line)) scheme_wrong_type(prim->name, "string-list", 2, argc, argv); array[i] = string_to_line(line); } savebuf = curbuf; curbuf = buf->buf; if (u_save((linenr_T)(lo-1), (linenr_T)hi) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot save undo information")); } /* * If the size of the range is reducing (ie, new_len < old_len) we * need to delete some old_len. We do this at the start, by * repeatedly deleting line "lo". */ for (i = 0; i < old_len - new_len; ++i) { if (ml_delete((linenr_T)lo, FALSE) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot delete line")); } extra--; } /* * For as long as possible, replace the existing old_len with the * new old_len. This is a more efficient operation, as it requires * less memory allocation and freeing. */ for (i = 0; i < old_len && i < new_len; i++) if (ml_replace((linenr_T)(lo+i), (char_u *)array[i], TRUE) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot replace line")); } /* * Now we may need to insert the remaining new_len. We don't need to * free the string passed back because MzScheme has control of that * memory. */ while (i < new_len) { if (ml_append((linenr_T)(lo + i - 1), (char_u *)array[i], 0, FALSE) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot insert line")); } ++i; ++extra; } /* * Adjust marks. Invalidate any which lie in the * changed range, and move any in the remainder of the buffer. */ mark_adjust((linenr_T)lo, (linenr_T)(hi - 1), (long)MAXLNUM, (long)extra); changed_lines((linenr_T)lo, 0, (linenr_T)hi, (long)extra); if (buf->buf == curwin->w_buffer) mz_fix_cursor(lo, hi, extra); curbuf = savebuf; raise_if_error(); return scheme_void; } /* * (insert-buff-line-list {linenr} {string/string-list} [buffer]) * * Insert a number of lines into the specified buffer after the specifed line. * The line number is in Vim format (1-based). The lines to be inserted are * given as an MzScheme list of string objects or as a single string. The lines * to be added are checked for validity and correct format. Errors are * returned as a value of FAIL. The return value is OK on success. * If OK is returned and len_change is not NULL, *len_change * is set to the change in the buffer length. */ static Scheme_Object * insert_buffer_line_list(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; vim_mz_buffer *buf; Scheme_Object *list; Scheme_Object *line; Scheme_Object *rest; char **array; char *str; buf_T *savebuf; int i, n, size; #ifdef HAVE_SANDBOX sandbox_check(); #endif /* * First of all, we check the type of the supplied MzScheme object. * It must be a string or a list, or the call is in error. */ n = SCHEME_INT_VAL(GUARANTEE_INTEGER(prim->name, 0)); list = argv[1]; if (!SCHEME_STRINGP(list) && !SCHEME_PAIRP(list)) scheme_wrong_type(prim->name, "string or list", 1, argc, argv); buf = get_buffer_arg(prim->name, 2, argc, argv); if (n != 0) /* 0 can be used in insert */ check_line_range(n, buf->buf); if (SCHEME_STRINGP(list)) { str = string_to_line(list); savebuf = curbuf; curbuf = buf->buf; if (u_save((linenr_T)n, (linenr_T)(n+1)) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot save undo information")); } else if (ml_append((linenr_T)n, (char_u *)str, 0, FALSE) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot insert line")); } else appended_lines_mark((linenr_T)n, 1L); curbuf = savebuf; update_screen(VALID); raise_if_error(); return scheme_void; } /* List */ size = scheme_proper_list_length(list); if (size < 0) /* improper or cyclic list */ scheme_wrong_type(prim->name, "proper list", 2, argc, argv); /* Using MzScheme allocator, so we don't need to free this and * can safely keep pointers to GC collected strings */ array = (char **)scheme_malloc_fail_ok( scheme_malloc, (unsigned)(size * sizeof(char *))); rest = list; for (i = 0; i < size; ++i) { line = SCHEME_CAR(rest); rest = SCHEME_CDR(rest); array[i] = string_to_line(line); } savebuf = curbuf; curbuf = buf->buf; if (u_save((linenr_T)n, (linenr_T)(n + 1)) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot save undo information")); } else { for (i = 0; i < size; ++i) if (ml_append((linenr_T)(n + i), (char_u *)array[i], 0, FALSE) == FAIL) { curbuf = savebuf; raise_vim_exn(_("cannot insert line")); } if (i > 0) appended_lines_mark((linenr_T)n, (long)i); } curbuf = savebuf; update_screen(VALID); raise_if_error(); return scheme_void; } /* (get-buff-namespace [buffer]) */ static Scheme_Object * get_buffer_namespace(void *data, int argc, Scheme_Object **argv) { Vim_Prim *prim = (Vim_Prim *)data; return (Scheme_Object *)get_buffer_arg(prim->name, 0, argc, argv)->env; } /* * Predicates */ /* (buff? obj) */ static Scheme_Object * vim_bufferp(void *data, int argc, Scheme_Object **argv) { if (SCHEME_VIMBUFFERP(argv[0])) return scheme_true; else return scheme_false; } /* (win? obj) */ static Scheme_Object * vim_windowp(void *data, int argc, Scheme_Object **argv) { if (SCHEME_VIMWINDOWP(argv[0])) return scheme_true; else return scheme_false; } /* (buff-valid? obj) */ static Scheme_Object * vim_buffer_validp(void *data, int argc, Scheme_Object **argv) { if (SCHEME_VIMBUFFERP(argv[0]) && ((vim_mz_buffer *)argv[0])->buf != INVALID_BUFFER_VALUE) return scheme_true; else return scheme_false; } /* (win-valid? obj) */ static Scheme_Object * vim_window_validp(void *data, int argc, Scheme_Object **argv) { if (SCHEME_VIMWINDOWP(argv[0]) && ((vim_mz_window *)argv[0])->win != INVALID_WINDOW_VALUE) return scheme_true; else return scheme_false; } /* *=========================================================================== * Utilities *=========================================================================== */ /* * Convert an MzScheme string into a Vim line. * * The result is in allocated memory. All internal nulls are replaced by * newline characters. It is an error for the string to contain newline * characters. * */ static char * string_to_line(Scheme_Object *obj) { char *str; long len; int i; str = scheme_display_to_string(obj, &len); /* Error checking: String must not contain newlines, as we * are replacing a single line, and we must replace it with * a single line. */ if (memchr(str, '\n', len)) scheme_signal_error(_("string cannot contain newlines")); /* Create a copy of the string, with internal nulls replaced by * newline characters, as is the vim convention. */ for (i = 0; i < len; ++i) { if (str[i] == '\0') str[i] = '\n'; } str[i] = '\0'; return str; } /* * Check to see whether a Vim error has been reported, or a keyboard * interrupt (from vim --> got_int) has been detected. */ static int vim_error_check(void) { return (got_int || did_emsg); } /* * register Scheme exn:vim */ static void register_vim_exn(Scheme_Env *env) { Scheme_Object *exn_name = scheme_intern_symbol("exn:vim"); if (vim_exn == NULL) vim_exn = scheme_make_struct_type(exn_name, scheme_builtin_value("struct:exn"), NULL, 0, 0, NULL, NULL #if MZSCHEME_VERSION_MAJOR >= 299 , NULL #endif ); if (vim_exn_values == NULL) { int nc = 0; Scheme_Object **exn_names = scheme_make_struct_names( exn_name, scheme_null, 0, &nc); Scheme_Object **exn_values = scheme_make_struct_values( vim_exn, exn_names, nc, 0); vim_exn_names = scheme_make_vector(nc, scheme_false); vim_exn_values = scheme_make_vector(nc, scheme_false); /* remember names and values */ mch_memmove(SCHEME_VEC_ELS(vim_exn_names), exn_names, nc * sizeof(Scheme_Object *)); mch_memmove(SCHEME_VEC_ELS(vim_exn_values), exn_values, nc * sizeof(Scheme_Object *)); } add_vim_exn(env); } /* * Add stuff of exn:vim to env */ static void add_vim_exn(Scheme_Env *env) { int i; for (i = 0; i < SCHEME_VEC_SIZE(vim_exn_values); i++) scheme_add_global_symbol(SCHEME_VEC_ELS(vim_exn_names)[i], SCHEME_VEC_ELS(vim_exn_values)[i], env); } /* * raise exn:vim, may be with additional info string */ void raise_vim_exn(const char *add_info) { Scheme_Object *argv[2]; char_u *fmt = _("Vim error: ~a"); if (add_info != NULL) { Scheme_Object *info = scheme_make_string(add_info); argv[0] = scheme_byte_string_to_char_string(scheme_make_string( scheme_format(fmt, strlen(fmt), 1, &info, NULL))); SCHEME_SET_IMMUTABLE(argv[0]); } else argv[0] = scheme_make_string(_("Vim error")); argv[1] = scheme_current_continuation_marks(); scheme_raise(scheme_make_struct_instance(vim_exn, 2, argv)); } void raise_if_error(void) { if (vim_error_check()) raise_vim_exn(NULL); } /* get buffer: * either current * or passed as argv[argnum] with checks */ static vim_mz_buffer * get_buffer_arg(const char *fname, int argnum, int argc, Scheme_Object **argv) { vim_mz_buffer *b; if (argc < argnum + 1) return get_vim_curr_buffer(); if (!SCHEME_VIMBUFFERP(argv[argnum])) scheme_wrong_type(fname, "vim-buffer", argnum, argc, argv); b = (vim_mz_buffer *)argv[argnum]; (void)get_valid_buffer(argv[argnum]); return b; } /* get window: * either current * or passed as argv[argnum] with checks */ static vim_mz_window * get_window_arg(const char *fname, int argnum, int argc, Scheme_Object **argv) { vim_mz_window *w; if (argc < argnum + 1) return get_vim_curr_window(); w = (vim_mz_window *)argv[argnum]; if (!SCHEME_VIMWINDOWP(argv[argnum])) scheme_wrong_type(fname, "vim-window", argnum, argc, argv); (void)get_valid_window(argv[argnum]); return w; } /* get valid Vim buffer from Scheme_Object* */ buf_T *get_valid_buffer(void *obj) { buf_T *buf = ((vim_mz_buffer *)obj)->buf; if (buf == INVALID_BUFFER_VALUE) scheme_signal_error(_("buffer is invalid")); return buf; } /* get valid Vim window from Scheme_Object* */ win_T *get_valid_window(void *obj) { win_T *win = ((vim_mz_window *)obj)->win; if (win == INVALID_WINDOW_VALUE) scheme_signal_error(_("window is invalid")); return win; } int mzthreads_allowed(void) { return mz_threads_allow; } static int line_in_range(linenr_T lnum, buf_T *buf) { return (lnum > 0 && lnum <= buf->b_ml.ml_line_count); } static void check_line_range(linenr_T lnum, buf_T *buf) { if (!line_in_range(lnum, buf)) scheme_signal_error(_("linenr out of range")); } /* * Check if deleting lines made the cursor position invalid * (or you'll get msg from Vim about invalid linenr). * Changed the lines from "lo" to "hi" and added "extra" lines (negative if * deleted). Got from if_python.c */ static void mz_fix_cursor(int lo, int hi, int extra) { if (curwin->w_cursor.lnum >= lo) { /* Adjust the cursor position if it's in/after the changed * lines. */ if (curwin->w_cursor.lnum >= hi) { curwin->w_cursor.lnum += extra; check_cursor_col(); } else if (extra < 0) { curwin->w_cursor.lnum = lo; check_cursor(); } changed_cline_bef_curs(); } invalidate_botline(); } static Vim_Prim prims[]= { /* * Buffer-related commands */ {get_buffer_line, "get-buff-line", 1, 2}, {set_buffer_line, "set-buff-line", 2, 3}, {get_buffer_line_list, "get-buff-line-list", 2, 3}, {get_buffer_name, "get-buff-name", 0, 1}, {get_buffer_num, "get-buff-num", 0, 1}, {get_buffer_size, "get-buff-size", 0, 1}, {set_buffer_line_list, "set-buff-line-list", 3, 4}, {insert_buffer_line_list, "insert-buff-line-list", 2, 3}, {get_curr_buffer, "curr-buff", 0, 0}, {get_buffer_count, "buff-count", 0, 0}, {get_next_buffer, "get-next-buff", 0, 1}, {get_prev_buffer, "get-prev-buff", 0, 1}, {mzscheme_open_buffer, "open-buff", 1, 1}, {get_buffer_by_name, "get-buff-by-name", 1, 1}, {get_buffer_by_num, "get-buff-by-num", 1, 1}, {get_buffer_namespace, "get-buff-namespace", 0, 1}, /* * Window-related commands */ {get_curr_win, "curr-win", 0, 0}, {get_window_count, "win-count", 0, 0}, {get_window_by_num, "get-win-by-num", 1, 1}, {get_window_num, "get-win-num", 0, 1}, {get_window_buffer, "get-win-buffer", 0, 1}, {get_window_height, "get-win-height", 0, 1}, {set_window_height, "set-win-height", 1, 2}, #ifdef FEAT_VERTSPLIT {get_window_width, "get-win-width", 0, 1}, {set_window_width, "set-win-width", 1, 2}, #endif {get_cursor, "get-cursor", 0, 1}, {set_cursor, "set-cursor", 1, 2}, {get_window_list, "get-win-list", 0, 1}, /* * Vim-related commands */ {vim_command, "command", 1, 1}, {vim_eval, "eval", 1, 1}, {get_range_start, "range-start", 0, 0}, {get_range_end, "range-end", 0, 0}, {mzscheme_beep, "beep", 0, 0}, {get_option, "get-option", 1, 2}, {set_option, "set-option", 1, 2}, /* * small utilities */ {vim_bufferp, "buff?", 1, 1}, {vim_windowp, "win?", 1, 1}, {vim_buffer_validp, "buff-valid?", 1, 1}, {vim_window_validp, "win-valid?", 1, 1} }; /* return MzScheme wrapper for curbuf */ static vim_mz_buffer * get_vim_curr_buffer(void) { if (curbuf->b_mzscheme_ref == NULL) return (vim_mz_buffer *)buffer_new(curbuf); else return (vim_mz_buffer *)curbuf->b_mzscheme_ref; } /* return MzScheme wrapper for curwin */ static vim_mz_window * get_vim_curr_window(void) { if (curwin->w_mzscheme_ref == NULL) return (vim_mz_window *)window_new(curwin); else return (vim_mz_window *)curwin->w_mzscheme_ref; } static void make_modules(Scheme_Env *env) { int i; Scheme_Env *mod; mod = scheme_primitive_module(scheme_intern_symbol("vimext"), env); /* all prims made closed so they can access their own names */ for (i = 0; i < sizeof(prims)/sizeof(prims[0]); i++) { Vim_Prim *prim = prims + i; scheme_add_global(prim->name, scheme_make_closed_prim_w_arity(prim->prim, prim, prim->name, prim->mina, prim->maxa), mod); } scheme_add_global("global-namespace", (Scheme_Object *)environment, mod); scheme_finish_primitive_module(mod); } #ifdef HAVE_SANDBOX static Scheme_Object *M_write = NULL; static Scheme_Object *M_read = NULL; static Scheme_Object *M_execute = NULL; static Scheme_Object *M_delete = NULL; static void sandbox_check() { if (sandbox) raise_vim_exn(_("not allowed in the Vim sandbox")); } /* security guards to force Vim's sandbox restrictions on MzScheme level */ static Scheme_Object * sandbox_file_guard(int argc, Scheme_Object **argv) { if (sandbox) { Scheme_Object *requested_access = argv[2]; if (M_write == NULL) { MZ_REGISTER_STATIC(M_write); M_write = scheme_intern_symbol("write"); } if (M_read == NULL) { MZ_REGISTER_STATIC(M_read); M_read = scheme_intern_symbol("read"); } if (M_execute == NULL) { MZ_REGISTER_STATIC(M_execute); M_execute = scheme_intern_symbol("execute"); } if (M_delete == NULL) { MZ_REGISTER_STATIC(M_delete); M_delete = scheme_intern_symbol("delete"); } while (!SCHEME_NULLP(requested_access)) { Scheme_Object *item = SCHEME_CAR(requested_access); if (scheme_eq(item, M_write) || scheme_eq(item, M_read) || scheme_eq(item, M_execute) || scheme_eq(item, M_delete)) { raise_vim_exn(_("not allowed in the Vim sandbox")); } requested_access = SCHEME_CDR(requested_access); } } return scheme_void; } static Scheme_Object * sandbox_network_guard(int argc, Scheme_Object **argv) { return scheme_void; } #endif