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4coder
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4coder/4coder_custom.cpp

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/*
* Example use of customization API
*/
#define FCPP_STRING_IMPLEMENTATION
#include "4coder_string.h"
// NOTE(allen): See exec_command and surrounding code in 4coder_helper.h
// to decide whether you want macro translations, without them you will
// have to manipulate the command and parameter stack through
// "app->" which may be more or less clear depending on your use.
//
// I suggest you try disabling macro translation and getting your code working
// that way, because I'll be removing it entirely sometime soon
#define DisableMacroTranslations 0
#include "4coder_custom.h"
#include "4coder_helper.h"
#ifndef literal
#define literal(s) s, (sizeof(s)-1)
#endif
// NOTE(allen|a3.3): All of your custom ids should be enumerated
// as shown here, they may start at 0, and you can only have
// 2^24 of them so don't be wasteful!
enum My_Maps{
my_code_map,
my_html_map
};
HOOK_SIG(my_start){
exec_command(app, cmdid_open_panel_vsplit);
exec_command(app, cmdid_change_active_panel);
}
char *get_extension(const char *filename, int len, int *extension_len){
char *c = (char*)(filename + len - 1);
char *end = c;
while (*c != '.' && c > filename) --c;
*extension_len = (int)(end - c);
return c+1;
}
bool str_match(const char *a, int len_a, const char *b, int len_b){
bool result = 0;
if (len_a == len_b){
char *end = (char*)(a + len_a);
while (a < end && *a == *b){
++a; ++b;
}
if (a == end) result = 1;
}
return result;
}
HOOK_SIG(my_file_settings){
Buffer_Summary buffer = app->get_active_buffer(app);
// NOTE(allen|a3.4.2): Whenever you ask for a buffer, you can check that
// the exists field is set to true. Reasons why the buffer might not exist:
// -The active panel does not contain a buffer and get_active_buffer was used
// -The index provided to get_buffer was out of range [0,max) or that index is associated to a dummy buffer
// -The name provided to get_buffer_by_name did not match any of the existing buffers
if (buffer.exists){
int treat_as_code = 0;
if (buffer.file_name && buffer.size < (16 << 20)){
int extension_len;
char *extension = get_extension(buffer.file_name, buffer.file_name_len, &extension_len);
if (str_match(extension, extension_len, literal("cpp"))) treat_as_code = 1;
else if (str_match(extension, extension_len, literal("h"))) treat_as_code = 1;
else if (str_match(extension, extension_len, literal("c"))) treat_as_code = 1;
else if (str_match(extension, extension_len, literal("hpp"))) treat_as_code = 1;
}
push_parameter(app, par_lex_as_cpp_file, treat_as_code);
push_parameter(app, par_wrap_lines, !treat_as_code);
push_parameter(app, par_key_mapid, (treat_as_code)?((int)my_code_map):((int)mapid_file));
exec_command(app, cmdid_set_settings);
}
}
CUSTOM_COMMAND_SIG(write_increment){
char text[] = "++";
int size = sizeof(text) - 1;
Buffer_Summary buffer = app->get_active_buffer(app);
app->buffer_replace_range(app, &buffer, buffer.buffer_cursor_pos, buffer.buffer_cursor_pos, text, size);
}
CUSTOM_COMMAND_SIG(write_decrement){
char text[] = "--";
int size = sizeof(text) - 1;
Buffer_Summary buffer = app->get_active_buffer(app);
app->buffer_replace_range(app, &buffer, buffer.buffer_cursor_pos, buffer.buffer_cursor_pos, text, size);
}
CUSTOM_COMMAND_SIG(open_long_braces){
File_View_Summary view;
Buffer_Summary buffer;
char text[] = "{\n\n}";
int size = sizeof(text) - 1;
int pos;
view = app->get_active_file_view(app);
buffer = app->get_buffer(app, view.buffer_id);
pos = view.cursor.pos;
app->buffer_replace_range(app, &buffer, pos, pos, text, size);
app->view_set_cursor(app, &view, seek_pos(pos + 2), 1);
push_parameter(app, par_range_start, pos);
push_parameter(app, par_range_end, pos + size);
push_parameter(app, par_clear_blank_lines, 0);
exec_command(app, cmdid_auto_tab_range);
}
CUSTOM_COMMAND_SIG(open_long_braces_semicolon){
File_View_Summary view;
Buffer_Summary buffer;
char text[] = "{\n\n};";
int size = sizeof(text) - 1;
int pos;
view = app->get_active_file_view(app);
buffer = app->get_buffer(app, view.buffer_id);
pos = view.cursor.pos;
app->buffer_replace_range(app, &buffer, pos, pos, text, size);
app->view_set_cursor(app, &view, seek_pos(pos + 2), 1);
push_parameter(app, par_range_start, pos);
push_parameter(app, par_range_end, pos + size);
push_parameter(app, par_clear_blank_lines, 0);
exec_command(app, cmdid_auto_tab_range);
}
CUSTOM_COMMAND_SIG(paren_wrap){
File_View_Summary view;
Buffer_Summary buffer;
char text1[] = "(";
int size1 = sizeof(text1) - 1;
char text2[] = ")";
int size2 = sizeof(text2) - 1;
Range range;
int pos;
view = app->get_active_file_view(app);
buffer = app->get_active_buffer(app);
range = get_range(&view);
pos = range.max;
app->buffer_replace_range(app, &buffer, pos, pos, text2, size2);
pos = range.min;
app->buffer_replace_range(app, &buffer, pos, pos, text1, size1);
}
CUSTOM_COMMAND_SIG(if0_off){
File_View_Summary view;
Buffer_Summary buffer;
char text1[] = "#if 0\n";
int size1 = sizeof(text1) - 1;
char text2[] = "#endif\n";
int size2 = sizeof(text2) - 1;
Range range;
int pos;
view = app->get_active_file_view(app);
buffer = app->get_active_buffer(app);
range = get_range(&view);
pos = range.min;
app->buffer_replace_range(app, &buffer, pos, pos, text1, size1);
push_parameter(app, par_range_start, pos);
push_parameter(app, par_range_end, pos);
exec_command(app, cmdid_auto_tab_range);
app->refresh_file_view(app, &view);
range = get_range(&view);
pos = range.max;
app->buffer_replace_range(app, &buffer, pos, pos, text2, size2);
push_parameter(app, par_range_start, pos);
push_parameter(app, par_range_end, pos);
exec_command(app, cmdid_auto_tab_range);
}
CUSTOM_COMMAND_SIG(backspace_word){
File_View_Summary view;
Buffer_Summary buffer;
int pos2, pos1;
view = app->get_active_file_view(app);
pos2 = view.cursor.pos;
exec_command(app, cmdid_seek_alphanumeric_left);
app->refresh_file_view(app, &view);
pos1 = view.cursor.pos;
buffer = app->get_buffer(app, view.buffer_id);
app->buffer_replace_range(app, &buffer, pos1, pos2, 0, 0);
}
CUSTOM_COMMAND_SIG(switch_to_compilation){
File_View_Summary view;
Buffer_Summary buffer;
char name[] = "*compilation*";
int name_size = sizeof(name)-1;
// TODO(allen): This will only work for file views for now. Extend the API
// a bit to handle a general view type which can be manipulated at least enough
// to change the specific type of view and set files even when the view didn't
// contain a file.
view = app->get_active_file_view(app);
buffer = app->get_buffer_by_name(app, make_string(name, name_size));
app->view_set_buffer(app, &view, buffer.buffer_id);
}
CUSTOM_COMMAND_SIG(move_up_10){
File_View_Summary view;
float x, y;
view = app->get_active_file_view(app);
x = view.preferred_x;
if (view.unwrapped_lines){
y = view.cursor.unwrapped_y;
}
else{
y = view.cursor.wrapped_y;
}
y -= 10*view.line_height;
app->view_set_cursor(app, &view, seek_xy(x, y, 0, view.unwrapped_lines), 0);
}
CUSTOM_COMMAND_SIG(move_down_10){
File_View_Summary view;
float x, y;
view = app->get_active_file_view(app);
x = view.preferred_x;
if (view.unwrapped_lines){
y = view.cursor.wrapped_y;
}
else{
y = view.cursor.wrapped_y;
}
y += 10*view.line_height;
app->view_set_cursor(app, &view, seek_xy(x, y, 0, view.unwrapped_lines), 0);
}
CUSTOM_COMMAND_SIG(switch_to_file_in_quotes){
File_View_Summary view;
Buffer_Summary buffer;
char short_file_name[128];
int pos, start, end, size;
view = app->get_active_file_view(app);
if (view.exists){
buffer = app->get_buffer(app, view.buffer_id);
if (buffer.ready){
pos = view.cursor.pos;
app->buffer_seek_delimiter(app, &buffer, pos, '"', 1, &end);
app->buffer_seek_delimiter(app, &buffer, pos, '"', 0, &start);
++start;
size = end - start;
if (size < sizeof(short_file_name)){
char file_name_[256];
String file_name = make_fixed_width_string(file_name_);
app->buffer_read_range(app, &buffer, start, end, short_file_name);
copy(&file_name, make_string(buffer.file_name, buffer.file_name_len));
truncate_to_path_of_directory(&file_name);
append(&file_name, make_string(short_file_name, size));
exec_command(app, cmdid_change_active_panel);
push_parameter(app, par_name, expand_str(file_name));
exec_command(app, cmdid_interactive_open);
}
}
}
}
CUSTOM_COMMAND_SIG(goto_line){
User_Input in;
Query_Bar bar;
char string_space[256];
int line_number;
// NOTE(allen|a3.4.4): It will not cause an *error* if we continue on after failing to.
// start a query bar, but it will be unusual behavior from the point of view of the
// user, if this command starts intercepting input even though no prompt is shown.
// This will only happen if you have a lot of bars open already or if the current view
// doesn't support query bars.
if (app->start_query_bar(app, &bar, 0) == 0) return;
// NOTE(allen|a3.4.4): The application side is storing a pointer straight to your Query_Bar
// any change you make to it will be reflected in what the application renders. The application
// also makes sure that it destroys all query bars whenever a command exists or an abort
// mesasge is sent to it.
bar.prompt = make_lit_string("Goto Line: ");
bar.string = make_fixed_width_string(string_space);
while (1){
in = app->get_user_input(app, EventOnAnyKey, EventOnEsc | EventOnButton);
if (in.abort) break;
if (in.type == UserInputKey){
if (in.key.character >= '0' && in.key.character <= '9'){
append(&bar.string, in.key.character);
}
else if (in.key.keycode == key_back){
--bar.string.size;
}
else if (in.key.keycode == '\n' || in.key.keycode == '\t'){
break;
}
}
}
if (in.abort) return;
line_number = str_to_int(bar.string);
active_view_to_line(app, line_number);
}
CUSTOM_COMMAND_SIG(search);
CUSTOM_COMMAND_SIG(reverse_search);
static void
isearch(Application_Links *app, int start_reversed){
File_View_Summary view;
Buffer_Summary buffer;
User_Input in;
Query_Bar bar;
if (app->start_query_bar(app, &bar, 0) == 0) return;
Range match;
int reverse = start_reversed;
int pos;
view = app->get_active_file_view(app);
buffer = app->get_buffer(app, view.buffer_id);
pos = view.cursor.pos;
match = make_range(pos, pos);
char bar_string_space[256];
bar.string = make_fixed_width_string(bar_string_space);
String isearch = make_lit_string("I-Search: ");
String rsearch = make_lit_string("Reverse-I-Search: ");
while (1){
if (reverse) bar.prompt = rsearch;
else bar.prompt = isearch;
in = app->get_user_input(app, EventOnAnyKey, EventOnEsc | EventOnButton);
if (in.abort) break;
int made_change = 0;
if (in.key.keycode == '\n' || in.key.keycode == '\t'){
break;
}
else if (in.key.character && key_is_unmodified(&in.key)){
append(&bar.string, in.key.character);
made_change = 1;
}
else if (in.key.keycode == key_back){
--bar.string.size;
made_change = 1;
}
int step_forward = 0;
int step_backward = 0;
if (CommandEqual(in.command, search)) step_forward = 1;
if (CommandEqual(in.command, reverse_search)) step_backward = 1;
int start_pos = pos;
if (step_forward && reverse){
start_pos = match.start + 1;
pos = start_pos;
reverse = 0;
step_forward = 0;
}
if (step_backward && !reverse){
start_pos = match.start - 1;
pos = start_pos;
reverse = 1;
step_backward = 0;
}
if (in.key.keycode != key_back){
int new_pos;
if (reverse){
app->buffer_seek_string(app, &buffer, start_pos - 1, bar.string, 0, &new_pos);
if (step_backward){
pos = new_pos;
start_pos = new_pos;
app->buffer_seek_string(app, &buffer, start_pos - 1, bar.string, 0, &new_pos);
}
}
else{
app->buffer_seek_string(app, &buffer, start_pos + 1, bar.string, 1, &new_pos);
if (step_forward){
pos = new_pos;
start_pos = new_pos;
app->buffer_seek_string(app, &buffer, start_pos + 1, bar.string, 1, &new_pos);
}
}
match.start = new_pos;
match.end = match.start + bar.string.size;
}
app->view_set_highlight(app, &view, match.start, match.end, 1);
}
app->view_set_highlight(app, &view, 0, 0, 0);
if (in.abort) return;
app->view_set_cursor(app, &view, seek_pos(match.min), 1);
}
CUSTOM_COMMAND_SIG(search){
isearch(app, 0);
}
CUSTOM_COMMAND_SIG(reverse_search){
isearch(app, 1);
}
CUSTOM_COMMAND_SIG(open_in_other){
exec_command(app, cmdid_change_active_panel);
exec_command(app, cmdid_interactive_open);
}
CUSTOM_COMMAND_SIG(open_my_files){
// NOTE(allen|a3.1): The command cmdid_interactive_open can now open
// a file specified on the parameter stack. If the file does not exist
// cmdid_interactive_open behaves as usual.
push_parameter(app, par_name, literal("w:/4ed/data/test/basic.cpp"));
exec_command(app, cmdid_interactive_open);
exec_command(app, cmdid_change_active_panel);
char my_file[256];
int my_file_len;
my_file_len = sizeof("w:/4ed/data/test/basic.txt") - 1;
for (int i = 0; i < my_file_len; ++i){
my_file[i] = ("w:/4ed/data/test/basic.txt")[i];
}
// NOTE(allen|a3.1): null terminators are not needed for strings.
push_parameter(app, par_name, my_file, my_file_len);
exec_command(app, cmdid_interactive_open);
exec_command(app, cmdid_change_active_panel);
}
CUSTOM_COMMAND_SIG(build_at_launch_location){
// NOTE(allen|a3.3): An example of calling build by setting all
// parameters directly. This only works if build.bat can be called
// from the directory the application is launched at.
push_parameter(app, par_cli_overlap_with_conflict, 1);
push_parameter(app, par_name, literal("*compilation*"));
push_parameter(app, par_cli_path, literal("."));
push_parameter(app, par_cli_command, literal("build"));
exec_command(app, cmdid_build);
}
CUSTOM_COMMAND_SIG(build_search){
// NOTE(allen|a3.3): An example of traversing the filesystem through parent
// directories looking for a file, in this case a batch file to execute.
//
//
// Step 1: push_directory returns a String containing the current "hot" directory
// (whatever directory you most recently visited in the 4coder file browsing interface)
//
// Step 2: app->directory_has_file queries the file system to see if "build.bat" exists
// If it does exist several parameters are pushed:
// - par_cli_overlap_with_conflict: whether to launch this process if an existing process
// is already being used for output on the same buffer
//
// - par_name: the name of the buffer to fill with the output from the process
//
// - par_cli_path: sets the path from which the command is executed
//
// - par_cli_command: sets the actual command to be executed, this can be almost any command
// that you could execute through a command line interface
//
//
// To set par_cli_path: push_parameter makes a copy of the dir string on the stack
// because the string allocated by push_directory is going to change again
// To set par_cli_command: app->push_parameter does not make a copy of the dir because
// dir isn't going to change again.
//
// Step 3: If the batch file did not exist try to move to the parent directory using
// app->directory_cd. The cd function can also be used to navigate to subdirectories.
// It returns true if it can actually move in the specified direction, and false otherwise.
int keep_going = 1;
String dir = push_directory(app);
while (keep_going){
if (app->directory_has_file(app, dir, "build.bat")){
push_parameter(app, par_cli_overlap_with_conflict, 0);
push_parameter(app, par_name, literal("*compilation*"));
push_parameter(app, par_cli_path, dir.str, dir.size);
if (append(&dir, "build")){
push_parameter(app, par_cli_command, dir.str, dir.size);
exec_command(app, cmdid_build);
}
else{
app->clear_parameters(app);
}
return;
}
if (app->directory_cd(app, &dir, "..") == 0){
keep_going = 0;
}
}
// TODO(allen): feedback message - couldn't find build.bat
}
CUSTOM_COMMAND_SIG(write_and_auto_tab){
exec_command(app, cmdid_write_character);
exec_command(app, cmdid_auto_tab_line_at_cursor);
}
extern "C" GET_BINDING_DATA(get_bindings){
Bind_Helper context_actual = begin_bind_helper(data, size);
Bind_Helper *context = &context_actual;
// NOTE(allen|a3.1): Right now hooks have no loyalties to maps, all hooks are
// global and once set they always apply, regardless of what map is active.
set_hook(context, hook_start, my_start);
set_hook(context, hook_open_file, my_file_settings);
begin_map(context, mapid_global);
bind(context, 'p', MDFR_CTRL, cmdid_open_panel_vsplit);
bind(context, '_', MDFR_CTRL, cmdid_open_panel_hsplit);
bind(context, 'P', MDFR_CTRL, cmdid_close_panel);
bind(context, 'n', MDFR_CTRL, cmdid_interactive_new);
bind(context, 'o', MDFR_CTRL, cmdid_interactive_open);
bind(context, ',', MDFR_CTRL, cmdid_change_active_panel);
bind(context, 'k', MDFR_CTRL, cmdid_interactive_kill_buffer);
bind(context, 'i', MDFR_CTRL, cmdid_interactive_switch_buffer);
bind(context, 'c', MDFR_ALT, cmdid_open_color_tweaker);
bind(context, 'x', MDFR_ALT, cmdid_open_menu);
bind(context, 'o', MDFR_ALT, open_in_other);
// NOTE(allen): These callbacks may not actually be useful to you, but
// go look at them and see what they do.
bind(context, 'M', MDFR_ALT | MDFR_CTRL, open_my_files);
bind(context, 'M', MDFR_ALT, build_at_launch_location);
bind(context, 'm', MDFR_ALT, build_search);
end_map(context);
begin_map(context, my_code_map);
// NOTE(allen|a3.1): Set this map (my_code_map == mapid_user_custom) to
// inherit from mapid_file. When searching if a key is bound
// in this map, if it is not found here it will then search mapid_file.
//
// If this is not set, it defaults to mapid_global.
inherit_map(context, mapid_file);
// NOTE(allen|a3.1): Children can override parent's bindings.
bind(context, key_right, MDFR_CTRL, cmdid_seek_alphanumeric_or_camel_right);
bind(context, key_left, MDFR_CTRL, cmdid_seek_alphanumeric_or_camel_left);
// NOTE(allen|a3.2): Specific keys can override vanilla keys,
// and write character writes whichever character corresponds
// to the key that triggered the command.
bind(context, '\n', MDFR_NONE, write_and_auto_tab);
bind(context, '}', MDFR_NONE, write_and_auto_tab);
bind(context, ')', MDFR_NONE, write_and_auto_tab);
bind(context, ']', MDFR_NONE, write_and_auto_tab);
bind(context, ';', MDFR_NONE, write_and_auto_tab);
bind(context, '#', MDFR_NONE, write_and_auto_tab);
bind(context, '\t', MDFR_NONE, cmdid_word_complete);
bind(context, '\t', MDFR_CTRL, cmdid_auto_tab_range);
bind(context, '\t', MDFR_SHIFT, cmdid_auto_tab_line_at_cursor);
bind(context, '\n', MDFR_SHIFT, write_and_auto_tab);
bind(context, ' ', MDFR_SHIFT, cmdid_write_character);
bind(context, '=', MDFR_CTRL, write_increment);
bind(context, '-', MDFR_CTRL, write_decrement);
bind(context, '[', MDFR_CTRL, open_long_braces);
bind(context, '{', MDFR_CTRL, open_long_braces);
bind(context, '9', MDFR_CTRL, paren_wrap);
bind(context, 'i', MDFR_ALT, if0_off);
bind(context, '1', MDFR_ALT, switch_to_file_in_quotes);
end_map(context);
begin_map(context, mapid_file);
// NOTE(allen|a3.4.4): Binding this essentially binds all key combos that
// would normally insert a character into a buffer.
// Or apply this rule: if the code for the key is not an enum value
// such as key_left or key_back then it is a vanilla key.
// It is possible to override this binding for individual keys.
bind_vanilla_keys(context, cmdid_write_character);
bind(context, key_left, MDFR_NONE, cmdid_move_left);
bind(context, key_right, MDFR_NONE, cmdid_move_right);
bind(context, key_del, MDFR_NONE, cmdid_delete);
bind(context, key_back, MDFR_NONE, cmdid_backspace);
bind(context, key_up, MDFR_NONE, cmdid_move_up);
bind(context, key_down, MDFR_NONE, cmdid_move_down);
bind(context, key_end, MDFR_NONE, cmdid_seek_end_of_line);
bind(context, key_home, MDFR_NONE, cmdid_seek_beginning_of_line);
bind(context, key_page_up, MDFR_NONE, cmdid_page_up);
bind(context, key_page_down, MDFR_NONE, cmdid_page_down);
bind(context, key_right, MDFR_CTRL, cmdid_seek_whitespace_right);
bind(context, key_left, MDFR_CTRL, cmdid_seek_whitespace_left);
bind(context, key_up, MDFR_CTRL, cmdid_seek_whitespace_up);
bind(context, key_down, MDFR_CTRL, cmdid_seek_whitespace_down);
bind(context, key_up, MDFR_ALT, move_up_10);
bind(context, key_down, MDFR_ALT, move_down_10);
bind(context, key_back, MDFR_CTRL, backspace_word);
bind(context, ' ', MDFR_CTRL, cmdid_set_mark);
bind(context, 'm', MDFR_CTRL, cmdid_cursor_mark_swap);
bind(context, 'c', MDFR_CTRL, cmdid_copy);
bind(context, 'x', MDFR_CTRL, cmdid_cut);
bind(context, 'v', MDFR_CTRL, cmdid_paste);
bind(context, 'V', MDFR_CTRL, cmdid_paste_next);
bind(context, 'Z', MDFR_CTRL, cmdid_timeline_scrub);
bind(context, 'z', MDFR_CTRL, cmdid_undo);
bind(context, 'y', MDFR_CTRL, cmdid_redo);
bind(context, 'h', MDFR_CTRL, cmdid_history_backward);
bind(context, 'H', MDFR_CTRL, cmdid_history_forward);
bind(context, 'd', MDFR_CTRL, cmdid_delete_range);
bind(context, 'l', MDFR_CTRL, cmdid_toggle_line_wrap);
bind(context, 'L', MDFR_CTRL, cmdid_toggle_endline_mode);
bind(context, 'u', MDFR_CTRL, cmdid_to_uppercase);
bind(context, 'j', MDFR_CTRL, cmdid_to_lowercase);
bind(context, '?', MDFR_CTRL, cmdid_toggle_show_whitespace);
bind(context, '~', MDFR_CTRL, cmdid_clean_all_lines);
bind(context, '1', MDFR_CTRL, cmdid_eol_dosify);
bind(context, '!', MDFR_CTRL, cmdid_eol_nixify);
bind(context, 'f', MDFR_CTRL, search);
bind(context, 'r', MDFR_CTRL, reverse_search);
bind(context, 'g', MDFR_CTRL, goto_line);
bind(context, 'K', MDFR_CTRL, cmdid_kill_buffer);
bind(context, 'O', MDFR_CTRL, cmdid_reopen);
bind(context, 'w', MDFR_CTRL, cmdid_interactive_save_as);
bind(context, 's', MDFR_CTRL, cmdid_save);
bind(context, ',', MDFR_ALT, switch_to_compilation);
end_map(context);
end_bind_helper(context);
return context->write_total;
}
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