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eliminated some undo bug-prone nonsense

This commit is contained in:
Allen Webster 2016-06-23 22:53:33 -04:00
parent ab4d5bbe02
commit 016d07cce4
7 changed files with 87 additions and 91 deletions
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6
4coder_custom.h
View File

@ -305,9 +305,9 @@ enum Command_Line_Input_Flag{
CLI_CursorAtEnd = 0x4, CLI_CursorAtEnd = 0x4,
}; };
enum Auto_Tab_Flag{ enum Auto_Indent_Flag{
AutoTab_ClearLine = 0x1, AutoIndent_ClearLine = 0x1,
AutoTab_UseTab = 0x2 AutoIndent_UseTab = 0x2
}; };
enum Input_Type_Flag{ enum Input_Type_Flag{

8
4coder_custom_api.h
View File

@ -17,6 +17,7 @@
#define BUFFER_READ_RANGE_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *out) #define BUFFER_READ_RANGE_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *out)
#define BUFFER_REPLACE_RANGE_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *str, int len) #define BUFFER_REPLACE_RANGE_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *str, int len)
#define BUFFER_SET_SETTING_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, int setting, int value) #define BUFFER_SET_SETTING_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, int setting, int value)
#define BUFFER_AUTO_INDENT_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, int start, int end, int tab_width, unsigned int flags)
#define CREATE_BUFFER_SIG(n) Buffer_Summary n(Application_Links *app, char *filename, int filename_len, unsigned int flags) #define CREATE_BUFFER_SIG(n) Buffer_Summary n(Application_Links *app, char *filename, int filename_len, unsigned int flags)
#define SAVE_BUFFER_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, char *filename, int filename_len, unsigned int flags) #define SAVE_BUFFER_SIG(n) int n(Application_Links *app, Buffer_Summary *buffer, char *filename, int filename_len, unsigned int flags)
#define KILL_BUFFER_SIG(n) int n(Application_Links *app, Buffer_Identifier buffer, int view_id, unsigned int flags) #define KILL_BUFFER_SIG(n) int n(Application_Links *app, Buffer_Identifier buffer, int view_id, unsigned int flags)
@ -24,7 +25,6 @@
#define GET_VIEW_NEXT_SIG(n) void n(Application_Links *app, View_Summary *view, unsigned int access) #define GET_VIEW_NEXT_SIG(n) void n(Application_Links *app, View_Summary *view, unsigned int access)
#define GET_VIEW_SIG(n) View_Summary n(Application_Links *app, int view_id, unsigned int access) #define GET_VIEW_SIG(n) View_Summary n(Application_Links *app, int view_id, unsigned int access)
#define GET_ACTIVE_VIEW_SIG(n) View_Summary n(Application_Links *app, unsigned int access) #define GET_ACTIVE_VIEW_SIG(n) View_Summary n(Application_Links *app, unsigned int access)
#define VIEW_AUTO_TAB_SIG(n) int n(Application_Links *app, View_Summary *view, int start, int end, int tab_width, unsigned int flags)
#define VIEW_COMPUTE_CURSOR_SIG(n) Full_Cursor n(Application_Links *app, View_Summary *view, Buffer_Seek seek) #define VIEW_COMPUTE_CURSOR_SIG(n) Full_Cursor n(Application_Links *app, View_Summary *view, Buffer_Seek seek)
#define VIEW_SET_CURSOR_SIG(n) int n(Application_Links *app, View_Summary *view, Buffer_Seek seek, int set_preferred_x) #define VIEW_SET_CURSOR_SIG(n) int n(Application_Links *app, View_Summary *view, Buffer_Seek seek, int set_preferred_x)
#define VIEW_SET_MARK_SIG(n) int n(Application_Links *app, View_Summary *view, Buffer_Seek seek) #define VIEW_SET_MARK_SIG(n) int n(Application_Links *app, View_Summary *view, Buffer_Seek seek)
@ -64,6 +64,7 @@ extern "C"{
typedef BUFFER_READ_RANGE_SIG(Buffer_Read_Range_Function); typedef BUFFER_READ_RANGE_SIG(Buffer_Read_Range_Function);
typedef BUFFER_REPLACE_RANGE_SIG(Buffer_Replace_Range_Function); typedef BUFFER_REPLACE_RANGE_SIG(Buffer_Replace_Range_Function);
typedef BUFFER_SET_SETTING_SIG(Buffer_Set_Setting_Function); typedef BUFFER_SET_SETTING_SIG(Buffer_Set_Setting_Function);
typedef BUFFER_AUTO_INDENT_SIG(Buffer_Auto_Indent_Function);
typedef CREATE_BUFFER_SIG(Create_Buffer_Function); typedef CREATE_BUFFER_SIG(Create_Buffer_Function);
typedef SAVE_BUFFER_SIG(Save_Buffer_Function); typedef SAVE_BUFFER_SIG(Save_Buffer_Function);
typedef KILL_BUFFER_SIG(Kill_Buffer_Function); typedef KILL_BUFFER_SIG(Kill_Buffer_Function);
@ -71,7 +72,6 @@ extern "C"{
typedef GET_VIEW_NEXT_SIG(Get_View_Next_Function); typedef GET_VIEW_NEXT_SIG(Get_View_Next_Function);
typedef GET_VIEW_SIG(Get_View_Function); typedef GET_VIEW_SIG(Get_View_Function);
typedef GET_ACTIVE_VIEW_SIG(Get_Active_View_Function); typedef GET_ACTIVE_VIEW_SIG(Get_Active_View_Function);
typedef VIEW_AUTO_TAB_SIG(View_Auto_Tab_Function);
typedef VIEW_COMPUTE_CURSOR_SIG(View_Compute_Cursor_Function); typedef VIEW_COMPUTE_CURSOR_SIG(View_Compute_Cursor_Function);
typedef VIEW_SET_CURSOR_SIG(View_Set_Cursor_Function); typedef VIEW_SET_CURSOR_SIG(View_Set_Cursor_Function);
typedef VIEW_SET_MARK_SIG(View_Set_Mark_Function); typedef VIEW_SET_MARK_SIG(View_Set_Mark_Function);
@ -114,6 +114,7 @@ struct Application_Links{
Buffer_Read_Range_Function *buffer_read_range; Buffer_Read_Range_Function *buffer_read_range;
Buffer_Replace_Range_Function *buffer_replace_range; Buffer_Replace_Range_Function *buffer_replace_range;
Buffer_Set_Setting_Function *buffer_set_setting; Buffer_Set_Setting_Function *buffer_set_setting;
Buffer_Auto_Indent_Function *buffer_auto_indent;
Create_Buffer_Function *create_buffer; Create_Buffer_Function *create_buffer;
Save_Buffer_Function *save_buffer; Save_Buffer_Function *save_buffer;
Kill_Buffer_Function *kill_buffer; Kill_Buffer_Function *kill_buffer;
@ -121,7 +122,6 @@ struct Application_Links{
Get_View_Next_Function *get_view_next; Get_View_Next_Function *get_view_next;
Get_View_Function *get_view; Get_View_Function *get_view;
Get_Active_View_Function *get_active_view; Get_Active_View_Function *get_active_view;
View_Auto_Tab_Function *view_auto_tab;
View_Compute_Cursor_Function *view_compute_cursor; View_Compute_Cursor_Function *view_compute_cursor;
View_Set_Cursor_Function *view_set_cursor; View_Set_Cursor_Function *view_set_cursor;
View_Set_Mark_Function *view_set_mark; View_Set_Mark_Function *view_set_mark;
@ -166,6 +166,7 @@ app_links->buffer_seek = external_buffer_seek;\
app_links->buffer_read_range = external_buffer_read_range;\ app_links->buffer_read_range = external_buffer_read_range;\
app_links->buffer_replace_range = external_buffer_replace_range;\ app_links->buffer_replace_range = external_buffer_replace_range;\
app_links->buffer_set_setting = external_buffer_set_setting;\ app_links->buffer_set_setting = external_buffer_set_setting;\
app_links->buffer_auto_indent = external_buffer_auto_indent;\
app_links->create_buffer = external_create_buffer;\ app_links->create_buffer = external_create_buffer;\
app_links->save_buffer = external_save_buffer;\ app_links->save_buffer = external_save_buffer;\
app_links->kill_buffer = external_kill_buffer;\ app_links->kill_buffer = external_kill_buffer;\
@ -173,7 +174,6 @@ app_links->get_view_first = external_get_view_first;\
app_links->get_view_next = external_get_view_next;\ app_links->get_view_next = external_get_view_next;\
app_links->get_view = external_get_view;\ app_links->get_view = external_get_view;\
app_links->get_active_view = external_get_active_view;\ app_links->get_active_view = external_get_active_view;\
app_links->view_auto_tab = external_view_auto_tab;\
app_links->view_compute_cursor = external_view_compute_cursor;\ app_links->view_compute_cursor = external_view_compute_cursor;\
app_links->view_set_cursor = external_view_set_cursor;\ app_links->view_set_cursor = external_view_set_cursor;\
app_links->view_set_mark = external_view_set_mark;\ app_links->view_set_mark = external_view_set_mark;\

59
4coder_default_include.cpp
View File

@ -650,16 +650,16 @@ long_braces(Application_Links *app, char *text, int size){
unsigned int access = AccessOpen; unsigned int access = AccessOpen;
View_Summary view = app->get_active_view(app, access); View_Summary view = app->get_active_view(app, access);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access); Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access);
int pos; int pos = view.cursor.pos;
pos = view.cursor.pos;
app->buffer_replace_range(app, &buffer, pos, pos, text, size); app->buffer_replace_range(app, &buffer, pos, pos, text, size);
app->view_set_cursor(app, &view, seek_pos(pos + 2), true); app->view_set_cursor(app, &view, seek_pos(pos + 2), true);
app->view_auto_tab(app, &view, app->buffer_auto_indent(app, &buffer,
pos, pos + size, pos, pos + size,
DEF_TAB_WIDTH, DEF_TAB_WIDTH,
0); 0);
// TODO(allen): set cursor position
} }
CUSTOM_COMMAND_SIG(open_long_braces){ CUSTOM_COMMAND_SIG(open_long_braces){
@ -705,10 +705,11 @@ CUSTOM_COMMAND_SIG(if0_off){
app->buffer_replace_range(app, &buffer, pos, pos, text1, size1); app->buffer_replace_range(app, &buffer, pos, pos, text1, size1);
app->view_auto_tab(app, &view, app->buffer_auto_indent(app, &buffer,
pos, pos, pos, pos,
DEF_TAB_WIDTH, DEF_TAB_WIDTH,
0); 0);
// TODO(allen): place cursor
refresh_view(app, &view); refresh_view(app, &view);
range = get_range(&view); range = get_range(&view);
@ -716,10 +717,11 @@ CUSTOM_COMMAND_SIG(if0_off){
app->buffer_replace_range(app, &buffer, pos, pos, text2, size2); app->buffer_replace_range(app, &buffer, pos, pos, text2, size2);
app->view_auto_tab(app, &view, app->buffer_auto_indent(app, &buffer,
pos, pos, pos, pos,
DEF_TAB_WIDTH, DEF_TAB_WIDTH,
0); 0);
// TODO(allen): place cursor
} }
CUSTOM_COMMAND_SIG(backspace_word){ CUSTOM_COMMAND_SIG(backspace_word){
@ -1298,11 +1300,13 @@ CUSTOM_COMMAND_SIG(build_search){
CUSTOM_COMMAND_SIG(auto_tab_line_at_cursor){ CUSTOM_COMMAND_SIG(auto_tab_line_at_cursor){
unsigned int access = AccessOpen; unsigned int access = AccessOpen;
View_Summary view = app->get_active_view(app, access); View_Summary view = app->get_active_view(app, access);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access);
app->view_auto_tab(app, &view, app->buffer_auto_indent(app, &buffer,
view.cursor.pos, view.cursor.pos, view.cursor.pos, view.cursor.pos,
DEF_TAB_WIDTH, DEF_TAB_WIDTH,
0); 0);
// TODO(allen): place cursor
} }
CUSTOM_COMMAND_SIG(auto_tab_whole_file){ CUSTOM_COMMAND_SIG(auto_tab_whole_file){
@ -1310,21 +1314,24 @@ CUSTOM_COMMAND_SIG(auto_tab_whole_file){
View_Summary view = app->get_active_view(app, access); View_Summary view = app->get_active_view(app, access);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access); Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access);
app->view_auto_tab(app, &view, app->buffer_auto_indent(app, &buffer,
0, buffer.size, 0, buffer.size,
DEF_TAB_WIDTH, DEF_TAB_WIDTH,
0); 0);
// TODO(allen): place cursor
} }
CUSTOM_COMMAND_SIG(auto_tab_range){ CUSTOM_COMMAND_SIG(auto_tab_range){
unsigned int access = AccessOpen; unsigned int access = AccessOpen;
View_Summary view = app->get_active_view(app, access); View_Summary view = app->get_active_view(app, access);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access);
Range range = get_range(&view); Range range = get_range(&view);
app->view_auto_tab(app, &view, app->buffer_auto_indent(app, &buffer,
range.min, range.max, range.min, range.max,
DEF_TAB_WIDTH, DEF_TAB_WIDTH,
0); 0);
// TODO(allen): place cursor
} }
CUSTOM_COMMAND_SIG(write_and_auto_tab){ CUSTOM_COMMAND_SIG(write_and_auto_tab){

76
4ed_api_implementation.cpp
View File

@ -792,6 +792,46 @@ DOC_SEE(Buffer_Setting_ID)
return(result); return(result);
} }
BUFFER_AUTO_INDENT_SIG(external_buffer_auto_indent)/*
DOC_PARAM(buffer, the buffer in which to apply the auto indenting)
DOC_PARAM(start, the position to start the auto indenting)
DOC_PARAM(end, the position to end the auto indenting)
DOC_PARAM(tab_width, the number of spaces to place as a tab)
DOC_PARAM(flags, the auto tab behavior flags)
DOC_RETURN(returns non-zero when the call succeeds)
DOC
(
Applies the built in auto-indentation rule to the code in the range from
start to end by inserting spaces or tabs at the beginning of the lines.
If the buffer does not have lexing enabled or the lexing job has not
completed this function will fail.
)
DOC_SEE(Auto_Tab_Flag)
*/{
Command_Data *cmd = (Command_Data*)app->cmd_context;
System_Functions *system = cmd->system;
Models *models = cmd->models;
Indent_Options opts = {0};
int result = false;
Editing_File *file = imp_get_file(cmd, buffer);
if (file && file->state.token_stack.tokens &&
file->state.tokens_complete && !file->state.still_lexing){
result = true;
opts.empty_blank_lines = (flags & AutoIndent_ClearLine);
opts.use_tabs = (flags & AutoIndent_UseTab);
opts.tab_width = tab_width;
file_auto_tab_tokens(system, models, file, start, start, end, opts);
fill_buffer_summary(buffer, file, cmd);
}
return(result);
}
CREATE_BUFFER_SIG(external_create_buffer)/* CREATE_BUFFER_SIG(external_create_buffer)/*
DOC_PARAM(filename, the name of the file to be opened or created) DOC_PARAM(filename, the name of the file to be opened or created)
DOC_PARAM(filename_len, the length of the filename string) DOC_PARAM(filename_len, the length of the filename string)
@ -1063,42 +1103,6 @@ DOC_RETURN(returns a summary that describes the active view)
return(view); return(view);
} }
VIEW_AUTO_TAB_SIG(external_view_auto_tab)/*
DOC_PARAM(start, )
DOC_PARAM(end, )
DOC_PARAM(tab_width, )
DOC_PARAM(flags, )
*/{
Command_Data *cmd = (Command_Data*)app->cmd_context;
System_Functions *system = cmd->system;
Models *models = cmd->models;
int result = false;
Editing_File *file = 0;
View *vptr = imp_get_view(cmd, view);
if (vptr){
file = vptr->file_data.file;
if (file && file->state.token_stack.tokens &&
file->state.tokens_complete && !file->state.still_lexing){
result = true;
Indent_Options opts;
opts.empty_blank_lines = (flags & AutoTab_ClearLine);
opts.use_tabs = (flags & AutoTab_UseTab);
opts.tab_width = tab_width;
view_auto_tab_tokens(system, models, vptr, start, end, opts);
fill_view_summary(view, vptr, cmd);
}
}
return(result);
}
VIEW_COMPUTE_CURSOR_SIG(external_view_compute_cursor){ VIEW_COMPUTE_CURSOR_SIG(external_view_compute_cursor){
Command_Data *cmd = (Command_Data*)app->cmd_context; Command_Data *cmd = (Command_Data*)app->cmd_context;
View *vptr = imp_get_view(cmd, view); View *vptr = imp_get_view(cmd, view);

2
4ed_file.cpp
View File

@ -40,8 +40,6 @@ struct Edit_Step{
struct{ struct{
b32 can_merge; b32 can_merge;
Buffer_Edit edit; Buffer_Edit edit;
i32 pre_pos;
i32 post_pos;
i32 next_block, prev_block; i32 next_block, prev_block;
}; };
struct{ struct{

25
4ed_file_view.cpp
View File

@ -1210,8 +1210,6 @@ file_post_undo(General_Memory *general, Editing_File *file,
Edit_Step inv_step = {}; Edit_Step inv_step = {};
inv_step.edit = inv; inv_step.edit = inv;
inv_step.pre_pos = step.pre_pos;
inv_step.post_pos = step.post_pos;
inv_step.can_merge = (b8)can_merge; inv_step.can_merge = (b8)can_merge;
inv_step.type = ED_UNDO; inv_step.type = ED_UNDO;
@ -1222,7 +1220,6 @@ file_post_undo(General_Memory *general, Editing_File *file,
if (prev.edit.end == inv_step.edit.start){ if (prev.edit.end == inv_step.edit.start){
did_merge = 1; did_merge = 1;
inv_step.edit.start = prev.edit.start; inv_step.edit.start = prev.edit.start;
inv_step.pre_pos = prev.pre_pos;
} }
} }
} }
@ -1280,8 +1277,6 @@ file_post_redo(General_Memory *general, Editing_File *file, Edit_Step step){
Edit_Step inv_step = {}; Edit_Step inv_step = {};
inv_step.edit = inv; inv_step.edit = inv;
inv_step.pre_pos = step.pre_pos;
inv_step.post_pos = step.post_pos;
inv_step.type = ED_REDO; inv_step.type = ED_REDO;
if (redo->edit_count == redo->edit_max) if (redo->edit_count == redo->edit_max)
@ -1350,19 +1345,16 @@ file_post_history(General_Memory *general, Editing_File *file,
Edit_Step inv_step = {}; Edit_Step inv_step = {};
inv_step.edit = inv; inv_step.edit = inv;
inv_step.pre_pos = step.pre_pos;
inv_step.post_pos = step.post_pos;
inv_step.can_merge = (b8)can_merge; inv_step.can_merge = (b8)can_merge;
inv_step.type = reverse_types[step.type]; inv_step.type = reverse_types[step.type];
bool32 did_merge = 0; b32 did_merge = 0;
if (do_merge && history->edit_count > 0){ if (do_merge && history->edit_count > 0){
Edit_Step prev = history->edits[history->edit_count-1]; Edit_Step prev = history->edits[history->edit_count-1];
if (prev.can_merge && inv_step.edit.len == 0 && prev.edit.len == 0){ if (prev.can_merge && inv_step.edit.len == 0 && prev.edit.len == 0){
if (prev.edit.end == inv_step.edit.start){ if (prev.edit.end == inv_step.edit.start){
did_merge = 1; did_merge = 1;
inv_step.edit.start = prev.edit.start; inv_step.edit.start = prev.edit.start;
inv_step.pre_pos = prev.pre_pos;
} }
} }
} }
@ -2218,8 +2210,6 @@ file_replace_range(System_Functions *system, Models *models, Editing_File *file,
spec.step.edit.end = end; spec.step.edit.end = end;
spec.step.edit.len = len; spec.step.edit.len = len;
spec.step.pre_pos = file->state.cursor_pos;
spec.step.post_pos = next_cursor;
spec.str = (u8*)str; spec.str = (u8*)str;
file_do_single_edit(system, models, file, spec, hist_normal, use_high_permission); file_do_single_edit(system, models, file, spec, hist_normal, use_high_permission);
} }
@ -2276,8 +2266,7 @@ view_undo_redo(System_Functions *system,
file_do_single_edit(system, models, file, spec, hist_normal); file_do_single_edit(system, models, file, spec, hist_normal);
if (expected_type == ED_UNDO) view_cursor_move(view, step.pre_pos); view_cursor_move(view, step.edit.start + step.edit.len);
else view_cursor_move(view, step.post_pos);
view->recent->mark = view->recent->cursor.pos; view->recent->mark = view->recent->cursor.pos;
Style *style = main_style(models); Style *style = main_style(models);
@ -2390,7 +2379,7 @@ view_history_step(System_Functions *system, Models *models, View *view, History_
} }
if (do_history_step){ if (do_history_step){
Edit_Spec spec; Edit_Spec spec = {0};
spec.step = step; spec.step = step;
if (spec.step.child_count == 0){ if (spec.step.child_count == 0){
@ -2402,12 +2391,12 @@ view_history_step(System_Functions *system, Models *models, View *view, History_
switch (spec.step.type){ switch (spec.step.type){
case ED_NORMAL: case ED_NORMAL:
case ED_REDO: case ED_REDO:
view_cursor_move(view, step.post_pos); view_cursor_move(view, step.edit.start + step.edit.len);
break; break;
case ED_REVERSE_NORMAL: case ED_REVERSE_NORMAL:
case ED_UNDO: case ED_UNDO:
view_cursor_move(view, step.pre_pos); view_cursor_move(view, step.edit.start + step.edit.len);
break; break;
} }
view->recent->mark = view->recent->cursor.pos; view->recent->mark = view->recent->cursor.pos;
@ -2524,10 +2513,8 @@ file_compute_whitespace_edit(Mem_Options *mem, Editing_File *file, i32 cursor_po
spec.step.special_type = 1; spec.step.special_type = 1;
spec.step.child_count = edit_count; spec.step.child_count = edit_count;
spec.step.inverse_child_count = edit_count; spec.step.inverse_child_count = edit_count;
spec.step.pre_pos = cursor_pos;
spec.step.post_pos = cursor_pos;
return spec; return(spec);
} }
internal void internal void

2
custom_api_spec.cpp
View File

@ -30,6 +30,7 @@ int Buffer_Read_Range(Application_Links *app, Buffer_Summary *buffer, int start,
int Buffer_Replace_Range(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *str, int len); int Buffer_Replace_Range(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *str, int len);
int Buffer_Set_Setting(Application_Links *app, Buffer_Summary *buffer, int setting, int value); int Buffer_Set_Setting(Application_Links *app, Buffer_Summary *buffer, int setting, int value);
int Buffer_Auto_Indent(Application_Links *app, Buffer_Summary *buffer, int start, int end, int tab_width, unsigned int flags);
Buffer_Summary Create_Buffer(Application_Links *app, char *filename, int filename_len, unsigned int flags); Buffer_Summary Create_Buffer(Application_Links *app, char *filename, int filename_len, unsigned int flags);
int Save_Buffer(Application_Links *app, Buffer_Summary *buffer, char *filename, int filename_len, unsigned int flags); int Save_Buffer(Application_Links *app, Buffer_Summary *buffer, char *filename, int filename_len, unsigned int flags);
@ -42,7 +43,6 @@ void Get_View_Next(Application_Links *app, View_Summary *view, unsigned int acce
View_Summary Get_View(Application_Links *app, int view_id, unsigned int access); View_Summary Get_View(Application_Links *app, int view_id, unsigned int access);
View_Summary Get_Active_View(Application_Links *app, unsigned int access); View_Summary Get_Active_View(Application_Links *app, unsigned int access);
int View_Auto_Tab (Application_Links *app, View_Summary *view, int start, int end, int tab_width, unsigned int flags);
Full_Cursor View_Compute_Cursor (Application_Links *app, View_Summary *view, Buffer_Seek seek); Full_Cursor View_Compute_Cursor (Application_Links *app, View_Summary *view, Buffer_Seek seek);
int View_Set_Cursor (Application_Links *app, View_Summary *view, Buffer_Seek seek, int set_preferred_x); int View_Set_Cursor (Application_Links *app, View_Summary *view, Buffer_Seek seek, int set_preferred_x);
int View_Set_Mark (Application_Links *app, View_Summary *view, Buffer_Seek seek); int View_Set_Mark (Application_Links *app, View_Summary *view, Buffer_Seek seek);