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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(cmd_context, cmdid_open_panel_vsplit);
exec_command(cmd_context, 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(cmd_context);
// NOTE(allen|a3.4.2): Whenever you ask for a buffer, you should first 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, cmd_context, par_lex_as_cpp_file, treat_as_code);
push_parameter(app, cmd_context, par_wrap_lines, !treat_as_code);
push_parameter(app, cmd_context, par_key_mapid, (treat_as_code)?(my_code_map):(mapid_file));
exec_command(cmd_context, cmdid_set_settings);
}
}
CUSTOM_COMMAND_SIG(write_increment){
Buffer_Summary buffer = app->get_active_buffer(cmd_context);
// NOTE(allen|a3.4.2): In addition to checking whether the buffer exists after a query,
// if you're going to read from or write to the buffer, you should check ready. A buffer
// is usually ready, but when a buffer has just been opened it is possible that the contents
// haven't been filled yet. If the buffer is not ready trying to read or write it is invalid.
// (See my_file_settings for comments on the exists field).
char text[] = "++";
int size = sizeof(text) - 1;
if (buffer.exists && buffer.ready){
app->buffer_replace_range(cmd_context, &buffer, buffer.file_cursor_pos, buffer.file_cursor_pos, text, size);
}
}
CUSTOM_COMMAND_SIG(write_decrement){
Buffer_Summary buffer = app->get_active_buffer(cmd_context);
char text[] = "--";
int size = sizeof(text) - 1;
if (buffer.exists && buffer.ready){
app->buffer_replace_range(cmd_context, &buffer, buffer.file_cursor_pos, buffer.file_cursor_pos, text, size);
}
}
CUSTOM_COMMAND_SIG(open_long_braces){
File_View_Summary view;
Buffer_Summary buffer;
view = app->get_active_file_view(cmd_context);
if (view.exists){
buffer = app->get_active_buffer(cmd_context);
char text[] = "{\n\n}";
int size = sizeof(text) - 1;
int pos;
if (buffer.exists && buffer.ready){
pos = view.cursor.pos;
app->buffer_replace_range(cmd_context, &buffer, pos, pos, text, size);
app->view_set_cursor(cmd_context, &view, seek_pos(pos + 2), 1);
push_parameter(app, cmd_context, par_range_start, pos);
push_parameter(app, cmd_context, par_range_end, pos + size);
push_parameter(app, cmd_context, par_clear_blank_lines, 0);
exec_command(cmd_context, cmdid_auto_tab_range);
}
}
}
CUSTOM_COMMAND_SIG(ifdef_off){
File_View_Summary view;
Buffer_Summary buffer;
view = app->get_active_file_view(cmd_context);
if (view.exists){
buffer = app->get_active_buffer(cmd_context);
char text1[] = "#if 0\n";
int size1 = sizeof(text1) - 1;
char text2[] = "#endif\n";
int size2 = sizeof(text2) - 1;
int pos, c, m;
if (buffer.exists && buffer.ready){
c = view.cursor.pos;
m = view.mark.pos;
pos = (c<m)?(c):(m);
app->buffer_replace_range(cmd_context, &buffer, pos, pos, text1, size1);
push_parameter(app, cmd_context, par_range_start, pos);
push_parameter(app, cmd_context, par_range_end, pos);
exec_command(cmd_context, cmdid_auto_tab_range);
app->refresh_file_view(cmd_context, &view);
c = view.cursor.pos;
m = view.mark.pos;
pos = (c>m)?(c):(m);
app->buffer_replace_range(cmd_context, &buffer, pos, pos, text2, size2);
push_parameter(app, cmd_context, par_range_start, pos);
push_parameter(app, cmd_context, par_range_end, pos);
exec_command(cmd_context, cmdid_auto_tab_range);
}
}
}
CUSTOM_COMMAND_SIG(open_in_other){
exec_command(cmd_context, cmdid_change_active_panel);
exec_command(cmd_context, 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, cmd_context, par_name, literal("w:/4ed/data/test/basic.cpp"));
exec_command(cmd_context, cmdid_interactive_open);
exec_command(cmd_context, 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, cmd_context, par_name, my_file, my_file_len);
exec_command(cmd_context, cmdid_interactive_open);
exec_command(cmd_context, 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 starting directory
push_parameter(app, cmd_context, par_cli_overlap_with_conflict, 1);
push_parameter(app, cmd_context, par_target_buffer_name, literal("*compilation*"));
push_parameter(app, cmd_context, par_cli_path, literal("."));
push_parameter(app, cmd_context, par_cli_command, literal("build"));
exec_command(cmd_context, 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_target_buffer_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, cmd_context);
while (keep_going){
if (app->directory_has_file(dir, "build.bat")){
push_parameter(app, cmd_context, par_cli_overlap_with_conflict, 0);
push_parameter(app, cmd_context, par_target_buffer_name, literal("*compilation*"));
push_parameter(app, cmd_context, par_cli_path, dir.str, dir.size);
if (append(&dir, "build")){
#if 1
// NOTE(allen): This version avoids an unecessary copy, both equivalents are
// included to demonstrate how using push_parameter without the helper looks.
app->push_parameter(cmd_context,
dynamic_int(par_cli_command),
dynamic_string(dir.str, dir.size));
#else
push_parameter(cmd_context, par_cli_command, dir.str, dir.size);
#endif
exec_command(cmd_context, cmdid_build);
}
else{
clear_parameters(cmd_context);
}
return;
}
if (app->directory_cd(&dir, "..") == 0){
keep_going = 0;
}
}
// TODO(allen): feedback message - couldn't find build.bat
}
CUSTOM_COMMAND_SIG(write_and_auto_tab){
exec_command(cmd_context, cmdid_write_character);
exec_command(cmd_context, cmdid_auto_tab_line_at_cursor);
}
// NOTE(allen|a3.4.1): How one might go about writing things like cut_line
// same idea works for cut word and other such composite commands.
CUSTOM_COMMAND_SIG(cut_line){
exec_command(cmd_context, cmdid_seek_beginning_of_line);
exec_command(cmd_context, cmdid_set_mark);
exec_command(cmd_context, cmdid_seek_end_of_line);
exec_command(cmd_context, cmdid_cut);
exec_command(cmd_context, cmdid_delete);
}
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, codes->right, MDFR_CTRL, cmdid_seek_alphanumeric_or_camel_right);
bind(context, codes->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, 'i', MDFR_ALT, ifdef_off);
end_map(context);
begin_map(context, mapid_file);
// NOTE(allen|a3.1): Binding this essentially binds all key combos that
// would normally insert a character into a buffer.
// Or apply this rule (which always works): if the code for the key
// is not in the codes struct, it is a vanilla key.
// It is possible to override this binding for individual keys.
bind_vanilla_keys(context, cmdid_write_character);
bind(context, codes->left, MDFR_NONE, cmdid_move_left);
bind(context, codes->right, MDFR_NONE, cmdid_move_right);
bind(context, codes->del, MDFR_NONE, cmdid_delete);
bind(context, codes->back, MDFR_NONE, cmdid_backspace);
bind(context, codes->up, MDFR_NONE, cmdid_move_up);
bind(context, codes->down, MDFR_NONE, cmdid_move_down);
bind(context, codes->end, MDFR_NONE, cmdid_seek_end_of_line);
bind(context, codes->home, MDFR_NONE, cmdid_seek_beginning_of_line);
bind(context, codes->page_up, MDFR_NONE, cmdid_page_up);
bind(context, codes->page_down, MDFR_NONE, cmdid_page_down);
bind(context, codes->right, MDFR_CTRL, cmdid_seek_whitespace_right);
bind(context, codes->left, MDFR_CTRL, cmdid_seek_whitespace_left);
bind(context, codes->up, MDFR_CTRL, cmdid_seek_whitespace_up);
bind(context, codes->down, MDFR_CTRL, cmdid_seek_whitespace_down);
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, codes->left, MDFR_ALT, cmdid_increase_rewind_speed);
bind(context, codes->right, MDFR_ALT, cmdid_increase_fastforward_speed);
bind(context, codes->down, MDFR_ALT, cmdid_stop_rewind_fastforward);
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, cmdid_search);
bind(context, 'r', MDFR_CTRL, cmdid_reverse_search);
bind(context, 'g', MDFR_CTRL, cmdid_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);
end_map(context);
end_bind_helper(context);
return context->write_total;
}
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