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config.c
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config.c
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// Read a ted configuration file.
// Config files are formatted as several sections, each containing key = value pairs.
// e.g.:
// [section1]
// thing1 = 33
// thing2 = 454
// [section2]
// asdf = 123
#include "ted-internal.h"
#include "pcre-inc.h"
/// Sections of `ted.cfg`
typedef enum {
SECTION_NONE,
SECTION_CORE,
SECTION_KEYBOARD,
SECTION_COLORS,
SECTION_EXTENSIONS
} ConfigSection;
// all the "control" pointers here are relative to `settings_zero`.
typedef struct {
const char *name;
const bool *control;
bool per_language; // allow per-language control
} SettingBool;
typedef struct {
const char *name;
const u8 *control;
u8 min, max;
bool per_language;
} SettingU8;
typedef struct {
const char *name;
const float *control;
float min, max;
bool per_language;
} SettingFloat;
typedef struct {
const char *name;
const u16 *control;
u16 min, max;
bool per_language;
} SettingU16;
typedef struct {
const char *name;
const u32 *control;
u32 min, max;
bool per_language;
} SettingU32;
typedef struct {
const char *name;
RcStr *const *control;
bool per_language;
} SettingString;
typedef struct {
const char *name;
const KeyCombo *control;
bool per_language;
} SettingKeyCombo;
typedef enum {
SETTING_BOOL = 1,
SETTING_U8,
SETTING_U16,
SETTING_U32,
SETTING_FLOAT,
SETTING_STRING,
SETTING_KEY_COMBO
} SettingType;
typedef struct {
SettingType type;
const char *name;
bool per_language;
union {
SettingU8 _u8;
SettingBool _bool;
SettingU16 _u16;
SettingU32 _u32;
SettingFloat _float;
SettingString _string;
SettingKeyCombo _key;
} u;
} SettingAny;
// core settings
static const Settings settings_zero = {0};
static const SettingBool settings_bool[] = {
{"auto-indent", &settings_zero.auto_indent, true},
#define SETTING_AUTO_ADD_NEWLINE {"auto-add-newline", &settings_zero.auto_add_newline, true}
SETTING_AUTO_ADD_NEWLINE,
#define SETTING_REMOVE_TRAILING_WHITESPACE {"remove-trailing-whitespace", &settings_zero.remove_trailing_whitespace, true}
SETTING_REMOVE_TRAILING_WHITESPACE,
{"auto-reload", &settings_zero.auto_reload, true},
{"auto-reload-config", &settings_zero.auto_reload_config, false},
{"syntax-highlighting", &settings_zero.syntax_highlighting, true},
{"autodetect-indentation", &settings_zero.autodetect_indentation, true},
{"line-numbers", &settings_zero.line_numbers, true},
{"restore-session", &settings_zero.restore_session, false},
{"regenerate-tags-if-not-found", &settings_zero.regenerate_tags_if_not_found, true},
#define SETTING_INDENT_WITH_SPACES {"indent-with-spaces", &settings_zero.indent_with_spaces, true}
SETTING_INDENT_WITH_SPACES,
{"trigger-characters", &settings_zero.trigger_characters, true},
{"identifier-trigger-characters", &settings_zero.identifier_trigger_characters, true},
{"phantom-completions", &settings_zero.phantom_completions, true},
{"signature-help-enabled", &settings_zero.signature_help_enabled, true},
{"document-links", &settings_zero.document_links, true},
{"lsp-enabled", &settings_zero.lsp_enabled, true},
{"lsp-log", &settings_zero.lsp_log, true},
{"hover-enabled", &settings_zero.hover_enabled, true},
{"vsync", &settings_zero.vsync, false},
{"highlight-enabled", &settings_zero.highlight_enabled, true},
{"highlight-auto", &settings_zero.highlight_auto, true},
{"save-backup", &settings_zero.save_backup, true},
#define SETTING_CRLF {"crlf", &settings_zero.crlf, true}
SETTING_CRLF,
#define SETTING_CRLF_WINDOWS {"crlf-windows", &settings_zero.crlf_windows, true}
SETTING_CRLF_WINDOWS,
{"jump-to-build-error", &settings_zero.jump_to_build_error, true},
{"force-monospace", &settings_zero.force_monospace, true},
{"show-diagnostics", &settings_zero.show_diagnostics, true},
};
static const SettingBool setting_auto_add_newline = SETTING_AUTO_ADD_NEWLINE;
static const SettingBool setting_indent_with_spaces = SETTING_INDENT_WITH_SPACES;
static const SettingBool setting_remove_trailing_whitespace = SETTING_REMOVE_TRAILING_WHITESPACE;
static const SettingBool setting_crlf = SETTING_CRLF;
static const SettingBool setting_crlf_windows = SETTING_CRLF_WINDOWS;
static const SettingU8 settings_u8[] = {
#define SETTING_TAB_WIDTH {"tab-width", &settings_zero.tab_width, 1, 100, true}
SETTING_TAB_WIDTH,
{"cursor-width", &settings_zero.cursor_width, 1, 100, true},
{"undo-save-time", &settings_zero.undo_save_time, 1, 200, true},
{"border-thickness", &settings_zero.border_thickness, 1, 30, false},
{"padding", &settings_zero.padding, 0, 100, false},
{"scrolloff", &settings_zero.scrolloff, 1, 100, true},
{"tags-max-depth", &settings_zero.tags_max_depth, 1, 100, false},
};
static const SettingU8 setting_tab_width = SETTING_TAB_WIDTH;
static const SettingU16 settings_u16[] = {
{"text-size", &settings_zero.text_size_no_dpi, TEXT_SIZE_MIN, TEXT_SIZE_MAX, false},
{"max-menu-width", &settings_zero.max_menu_width, 10, U16_MAX, false},
{"error-display-time", &settings_zero.error_display_time, 0, U16_MAX, false},
{"framerate-cap", &settings_zero.framerate_cap, 3, 1000, false},
{"lsp-port", &settings_zero.lsp_port, 0, 65535, true},
};
const SettingU16 setting_text_size_dpi_aware = {NULL, &settings_zero.text_size, 0, U16_MAX, false};
static const SettingU32 settings_u32[] = {
{"max-file-size", &settings_zero.max_file_size, 100, 2000000000, false},
{"max-file-size-view-only", &settings_zero.max_file_size_view_only, 100, 2000000000, false},
};
static const SettingFloat settings_float[] = {
{"cursor-blink-time-on", &settings_zero.cursor_blink_time_on, 0, 1000, true},
{"cursor-blink-time-off", &settings_zero.cursor_blink_time_off, 0, 1000, true},
{"hover-time", &settings_zero.hover_time, 0, INFINITY, true},
{"ctrl-scroll-adjust-text-size", &settings_zero.ctrl_scroll_adjust_text_size, -10, 10, true},
{"lsp-delay", &settings_zero.lsp_delay, 0, 100, true},
};
static const SettingString settings_string[] = {
{"build-default-command", &settings_zero.build_default_command, true},
{"build-command", &settings_zero.build_command, true},
{"root-identifiers", &settings_zero.root_identifiers, true},
{"lsp", &settings_zero.lsp, true},
{"lsp-configuration", &settings_zero.lsp_configuration, true},
{"comment-start", &settings_zero.comment_start, true},
{"comment-end", &settings_zero.comment_end, true},
{"font", &settings_zero.font, false},
{"font-bold", &settings_zero.font_bold, false},
{"sync", &settings_zero.sync, false},
};
static const SettingKeyCombo settings_key_combo[] = {
{"hover-key", &settings_zero.hover_key, true},
{"highlight-key", &settings_zero.highlight_key, true},
};
bool config_applies_to(Config *cfg, const char *path, Language language) {
if (cfg->language && language != cfg->language)
return false;
if (cfg->path) {
if (!path)
return false;
pcre2_match_data_8 *match_data = pcre2_match_data_create_from_pattern_8(cfg->path, NULL);
bool match = pcre2_match_8(cfg->path, (const u8 *)path, PCRE2_ZERO_TERMINATED, 0, 0, match_data, NULL) > 0;
pcre2_match_data_free_8(match_data);
if (!match)
return false;
}
return true;
}
// if this returns true, `a` and `b` have the same context (`a` only applies if `b` does)
static bool config_definitely_has_same_context(const Config *a, const Config *b) {
if (a->language != b->language)
return false;
if (a->path_regex && !b->path_regex)
return false;
if (!a->path_regex && b->path_regex)
return false;
if (a->path_regex && !streq(a->path_regex, b->path_regex))
return false;
return true;
}
static void config_set_setting(Config *cfg, ptrdiff_t offset, const void *value, size_t size) {
memmove((char *)&cfg->settings + offset, value, size);
memset(&cfg->settings_set[offset], 1, size);
}
static void config_set_bool(Config *cfg, const SettingBool *set, bool value) {
config_set_setting(cfg, (char*)set->control - (char*)&settings_zero, &value, sizeof value);
}
static void config_set_u8(Config *cfg, const SettingU8 *set, u8 value) {
if (value >= set->min && value <= set->max)
config_set_setting(cfg, (char*)set->control - (char*)&settings_zero, &value, sizeof value);
}
static void config_set_u16(Config *cfg, const SettingU16 *set, u16 value) {
if (value >= set->min && value <= set->max)
config_set_setting(cfg, (char*)set->control - (char*)&settings_zero, &value, sizeof value);
}
static void config_set_u32(Config *cfg, const SettingU32 *set, u32 value) {
if (value >= set->min && value <= set->max)
config_set_setting(cfg, (char*)set->control - (char*)&settings_zero, &value, sizeof value);
}
static void config_set_float(Config *cfg, const SettingFloat *set, float value) {
if (value >= set->min && value <= set->max)
config_set_setting(cfg, (char*)set->control - (char*)&settings_zero, &value, sizeof value);
}
static void config_set_key_combo(Config *cfg, const SettingKeyCombo *set, KeyCombo value) {
config_set_setting(cfg, (char *)set->control - (char *)&settings_zero, &value, sizeof value);
}
static void config_set_string(Config *cfg, const SettingString *set, const char *value) {
assert(value);
Settings *settings = &cfg->settings;
const ptrdiff_t offset = ((char *)set->control - (char*)&settings_zero);
RcStr **control = (RcStr **)((char *)settings + offset);
if (*control) rc_str_decref(control);
RcStr *rc = rc_str_new(value, -1);
config_set_setting(cfg, offset, &rc, sizeof (RcStr *));
}
static void config_set_color(Config *cfg, ColorSetting setting, u32 color) {
config_set_setting(cfg, (char *)&settings_zero.colors[setting] - (char *)&settings_zero, &color, sizeof color);
}
typedef struct {
Ted *ted;
const char *filename;
FILE *fp;
ConfigSection section;
u32 line_number; // currently processing this line number
bool error;
} ConfigReader;
static void config_verr(ConfigReader *cfg, const char *fmt, va_list args) {
if (cfg->error) return;
cfg->error = true;
char error[1024] = {0};
strbuf_printf(error, "%s:%u: ", cfg->filename, cfg->line_number);
vsnprintf(error + strlen(error), sizeof error - strlen(error) - 1, fmt, args);
ted_error(cfg->ted, "%s", error);
}
static void config_err(ConfigReader *cfg, PRINTF_FORMAT_STRING const char *fmt, ...) ATTRIBUTE_PRINTF(2, 3);
static void config_err(ConfigReader *cfg, const char *fmt, ...) {
va_list args;
va_start(args, fmt);
config_verr(cfg, fmt, args);
va_end(args);
}
static void config_debug_err(ConfigReader *cfg, PRINTF_FORMAT_STRING const char *fmt, ...) ATTRIBUTE_PRINTF(2, 3);
static void config_debug_err(ConfigReader *cfg, const char *fmt, ...) {
va_list args;
va_start(args, fmt);
#if DEBUG
config_verr(cfg, fmt, args);
#else
ted_vlog(cfg->ted, fmt, args);
#endif
va_end(args);
}
static void settings_free_set(Settings *settings, const bool *set) {
if (set[offsetof(Settings, language_extensions)])
arr_free(settings->language_extensions);
if (set[offsetof(Settings, key_actions)]) {
arr_foreach_ptr(settings->key_actions, KeyAction, act) {
free((void *)act->argument.string);
}
arr_free(settings->key_actions);
}
if (set[offsetof(Settings, bg_shader)])
gl_rc_sab_decref(&settings->bg_shader);
if (set[offsetof(Settings, bg_texture)])
gl_rc_texture_decref(&settings->bg_texture);
for (size_t i = 0; i < arr_count(settings_string); i++) {
const SettingString *s = &settings_string[i];
const ptrdiff_t offset = (char *)s->control - (char *)&settings_zero;
if (set[offset]) {
RcStr **rc = (RcStr **)((char *)settings + offset);
rc_str_decref(rc);
}
}
}
void settings_free(Settings *settings) {
static bool all_set[sizeof(Settings)];
memset(all_set, 1, sizeof all_set);
settings_free_set(settings, all_set);
memset(settings, 0, sizeof *settings);
}
static void config_free(Config *cfg) {
settings_free(&cfg->settings);
pcre2_code_free_8(cfg->path);
free(cfg->path_regex);
rc_str_decref(&cfg->source);
memset(cfg, 0, sizeof *cfg);
}
i32 config_priority(const Config *cfg) {
size_t path_len = cfg->path ? strlen(cfg->path_regex) : 0;
return (i32)path_len * 2 + (cfg->language != 0);
}
static KeyAction key_action_copy(const KeyAction *src) {
KeyAction cpy = *src;
if (cpy.argument.string)
cpy.argument.string = str_dup(cpy.argument.string);
return cpy;
}
void config_merge_into(Settings *dest, const Config *src_cfg) {
const Settings *src = &src_cfg->settings;
char *destc = (char *)dest;
const char *srcc = (const char *)src;
const bool *set = src_cfg->settings_set;
settings_free_set(dest, set);
for (size_t i = 0; i < sizeof(Settings); i++) {
if (set[i])
destc[i] = srcc[i];
}
// increment reference counts for things we've borrowed from src
if (set[offsetof(Settings, bg_shader)])
gl_rc_sab_incref(dest->bg_shader);
if (set[offsetof(Settings, bg_texture)])
gl_rc_texture_incref(dest->bg_texture);
for (size_t i = 0; i < arr_count(settings_string); i++) {
const SettingString *s = &settings_string[i];
ptrdiff_t offset = (char *)s->control - (char *)&settings_zero;
if (!set[offset]) continue;
RcStr *rc = *(RcStr **)((char *)dest + offset);
rc_str_incref(rc);
}
// we should never copy these from src
assert(!set[offsetof(Settings, language_extensions)]);
assert(!set[offsetof(Settings, key_actions)]);
// merge language_extensions and key_actions
arr_foreach_ptr(src->language_extensions, LanguageExtension, ext)
arr_add(dest->language_extensions, *ext);
arr_foreach_ptr(src->key_actions, KeyAction, act)
arr_add(dest->key_actions, key_action_copy(act));
}
static void config_err_unexpected_eof(ConfigReader *reader) {
config_err(reader, "Unexpected EOF (no newline at end of file?)");
}
static char config_getc_no_err_on_eof(ConfigReader *reader) {
int c = getc(reader->fp);
if (c == 0) {
config_err(reader, "Null byte in config file");
}
if (c == EOF) {
c = 0;
}
if (c == '\n') {
reader->line_number += 1;
}
return (char)c;
}
static char config_getc(ConfigReader *reader) {
char c = config_getc_no_err_on_eof(reader);
if (!c)
config_err_unexpected_eof(reader);
return c;
}
static void config_ungetc(ConfigReader *reader, char c) {
if (c == '\n')
reader->line_number -= 1;
if (c)
ungetc(c, reader->fp);
}
static void config_skip_space(ConfigReader *reader) {
char c;
while ((c = config_getc(reader))) {
if (!isspace(c) || c == '\n') {
config_ungetc(reader, c);
break;
}
}
}
static void config_read_to_eol(ConfigReader *reader, char *buf, size_t bufsz) {
assert(bufsz < INT_MAX);
if (!fgets(buf, (int)bufsz, reader->fp)) {
config_err_unexpected_eof(reader);
*buf = '\0';
}
if (strchr(buf, '\n'))
reader->line_number += 1;
buf[strcspn(buf, "\r\n")] = '\0';
}
static SDL_Keycode config_parse_key(ConfigReader *cfg, const char *str) {
SDL_Keycode keycode = SDL_GetKeyFromName(str);
if (keycode != SDLK_UNKNOWN)
return keycode;
typedef struct {
const char *keyname1;
const char *keyname2; // alternate key name
SDL_Keycode keycode;
} KeyName;
static KeyName const key_names[] = {
{"X1", NULL, KEYCODE_X1},
{"X2", NULL, KEYCODE_X2},
{"Enter", NULL, SDLK_RETURN},
{"Equals", "Equal", SDLK_EQUALS},
};
for (size_t i = 0; i < arr_count(key_names); ++i) {
KeyName const *k = &key_names[i];
if (streq_case_insensitive(str, k->keyname1) || (k->keyname2 && streq_case_insensitive(str, k->keyname2))) {
keycode = k->keycode;
break;
}
}
if (keycode != SDLK_UNKNOWN)
return keycode;
if (isdigit(str[0])) { // direct keycode numbers, e.g. Ctrl+24 or Ctrl+08
char *endp;
long n = strtol(str, &endp, 10);
if (*endp == '\0' && n > 0) {
return (SDL_Keycode)n;
} else {
config_err(cfg, "Invalid keycode number: %s", str);
return 0;
}
} else {
config_err(cfg, "Unrecognized key name: %s.", str);
return 0;
}
}
// Returns the key combination described by str.
static KeyCombo config_parse_key_combo(ConfigReader *cfg, const char *str) {
u32 modifier = 0;
// read modifier
while (true) {
if (str_has_prefix(str, "Ctrl+")) {
if (modifier & KEY_MODIFIER_CTRL) {
config_err(cfg, "Ctrl+ written twice");
return (KeyCombo){0};
}
modifier |= KEY_MODIFIER_CTRL;
str += strlen("Ctrl+");
} else if (str_has_prefix(str, "Shift+")) {
if (modifier & KEY_MODIFIER_SHIFT) {
config_err(cfg, "Shift+ written twice");
return (KeyCombo){0};
}
modifier |= KEY_MODIFIER_SHIFT;
str += strlen("Shift+");
} else if (str_has_prefix(str, "Alt+")) {
if (modifier & KEY_MODIFIER_ALT) {
config_err(cfg, "Alt+ written twice");
return (KeyCombo){0};
}
modifier |= KEY_MODIFIER_ALT;
str += strlen("Alt+");
} else break;
}
// read key
SDL_Keycode keycode = config_parse_key(cfg, str);
if (keycode == SDLK_UNKNOWN)
return (KeyCombo){0};
return KEY_COMBO(modifier, keycode);
}
static bool settings_initialized = false;
static SettingAny settings_all[1000] = {0};
static void config_init_settings(void) {
if (settings_initialized) return;
SettingAny *opt = settings_all;
for (size_t i = 0; i < arr_count(settings_bool); ++i) {
opt->type = SETTING_BOOL;
opt->name = settings_bool[i].name;
opt->per_language = settings_bool[i].per_language;
opt->u._bool = settings_bool[i];
++opt;
}
for (size_t i = 0; i < arr_count(settings_u8); ++i) {
opt->type = SETTING_U8;
opt->name = settings_u8[i].name;
opt->per_language = settings_u8[i].per_language;
opt->u._u8 = settings_u8[i];
++opt;
}
for (size_t i = 0; i < arr_count(settings_u16); ++i) {
opt->type = SETTING_U16;
opt->name = settings_u16[i].name;
opt->per_language = settings_u16[i].per_language;
opt->u._u16 = settings_u16[i];
++opt;
}
for (size_t i = 0; i < arr_count(settings_u32); ++i) {
opt->type = SETTING_U32;
opt->name = settings_u32[i].name;
opt->per_language = settings_u32[i].per_language;
opt->u._u32 = settings_u32[i];
++opt;
}
for (size_t i = 0; i < arr_count(settings_float); ++i) {
opt->type = SETTING_FLOAT;
opt->name = settings_float[i].name;
opt->per_language = settings_float[i].per_language;
opt->u._float = settings_float[i];
++opt;
}
for (size_t i = 0; i < arr_count(settings_string); ++i) {
opt->type = SETTING_STRING;
opt->name = settings_string[i].name;
opt->per_language = settings_string[i].per_language;
opt->u._string = settings_string[i];
++opt;
}
for (size_t i = 0; i < arr_count(settings_key_combo); ++i) {
opt->type = SETTING_KEY_COMBO;
opt->name = settings_key_combo[i].name;
opt->per_language = settings_key_combo[i].per_language;
opt->u._key = settings_key_combo[i];
++opt;
}
settings_initialized = true;
}
static void get_config_path(Ted *ted, char *expanded, size_t expanded_sz, const char *path) {
assert(path != expanded);
expanded[0] = '\0';
if (path[0] == '~' && is_path_separator(path[1])) {
str_printf(expanded, expanded_sz, "%s%c%s", ted->home, PATH_SEPARATOR, path + 1);
} else if (!path_is_absolute(path)) {
if (!ted_get_file(ted, path, expanded, expanded_sz)) {
str_cpy(expanded, expanded_sz, path);
}
} else {
str_cpy(expanded, expanded_sz, path);
}
}
// only reads fp for multi-line strings
// return value should be freed.
static char *config_read_string(ConfigReader *reader, char delimiter) {
char *str = NULL;
while (true) {
char c = config_getc(reader);
if (c == delimiter)
break;
switch (c) {
case '\\':
c = config_getc(reader);
switch (c) {
case '\\':
case '"':
case '`':
break;
case 'n':
arr_add(str, '\n');
continue;
case 'r':
arr_add(str, '\r');
continue;
case 't':
arr_add(str, '\t');
continue;
case '[':
arr_add(str, '[');
continue;
default:
config_err(reader, "Unrecognized escape sequence: '\\%c'.", c);
arr_clear(str);
return NULL;
}
break;
default:
arr_add(str, c);
break;
}
}
char *s = strn_dup(str, arr_len(str));
arr_free(str);
return s;
}
static void settings_load_bg_shader(Ted *ted, Config *cfg, const char *bg_shader_text) {
char vshader[8192] ;
strbuf_printf(vshader, "attribute vec2 v_pos;\n\
OUT vec2 t_pos;\n\
void main() { \n\
gl_Position = vec4(v_pos * 2.0 - 1.0, 0.0, 1.0);\n\
t_pos = v_pos;\n\
}");
char fshader[8192];
strbuf_printf(fshader, "IN vec2 t_pos;\n\
uniform float t_time;\n\
uniform float t_save_time;\n\
uniform vec2 t_aspect;\n\
uniform sampler2D t_texture;\n\
#line 1\n\
%s", bg_shader_text);
char error[512] = {0};
GLuint shader = gl_compile_and_link_shaders(error, vshader, fshader);
if (*error)
ted_error(ted, "%s", error);
if (!shader) return;
GLuint buffer = 0, array = 0;
glGenBuffers(1, &buffer);
if (gl_version_major >= 3) {
glGenVertexArrays(1, &array);
glBindVertexArray(array);
}
float buffer_data[][2] = {
{0,0},
{1,0},
{1,1},
{0,0},
{1,1},
{0,1}
};
GLuint v_pos = (GLuint)glGetAttribLocation(shader, "v_pos");
glBindBuffer(GL_ARRAY_BUFFER, buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof buffer_data, buffer_data, GL_STATIC_DRAW);
glVertexAttribPointer(v_pos, 2, GL_FLOAT, 0, 2 * sizeof(float), 0);
glEnableVertexAttribArray(v_pos);
cfg->settings.bg_shader = gl_rc_sab_new(shader, array, buffer);
}
static void settings_load_bg_texture(Ted *ted, Config *cfg, const char *path) {
char expanded[TED_PATH_MAX];
get_config_path(ted, expanded, sizeof expanded, path);
GLuint texture = gl_load_texture_from_image(expanded);
if (!texture) {
ted_error(ted, "Couldn't load image %s", path);
return;
}
cfg->settings.bg_texture = gl_rc_texture_new(texture);
}
static void config_parse_line(ConfigReader *reader, Config *cfg) {
Ted *ted = reader->ted;
if (reader->section == 0) {
// there was an error reading this section. don't bother with anything else.
return;
}
char key[128] = {0};
char c;
for (size_t i = 0; i < sizeof key - 1; ++i) {
c = config_getc(reader);
if (!c) break;
if (c == '=') break;
if (c == '\n') break;
key[i] = c;
}
str_trim(key);
if (key[0] == 0) {
return;
}
if (c != '=') {
config_err(reader, "Unexpected end-of-line (expected key = value)");
return;
}
config_skip_space(reader);
switch (reader->section) {
case SECTION_NONE:
config_err(reader, "Line outside of any section."
"Try putting a section header, e.g. [keyboard] before this line?");
break;
case SECTION_COLORS: {
ColorSetting setting = color_setting_from_str(key);
if (setting != COLOR_UNKNOWN) {
char value[32] = {0};
config_read_to_eol(reader, value, sizeof value);
str_trim(value);
u32 color = 0;
if (color_from_str(value, &color)) {
config_set_color(cfg, setting, color);
} else {
config_err(reader, "'%s' is not a valid color. Colors should look like #rgb, #rgba, #rrggbb, or #rrggbbaa.", value);
}
} else {
// don't actually produce this error.
// we have removed colors in the past and might again in the future.
#if 0
config_err(cfg, "No such color setting: %s", key);
#endif
}
} break;
case SECTION_KEYBOARD: {
// lines like Ctrl+Down = 10 :down
KeyCombo key_combo = config_parse_key_combo(reader, key);
KeyAction action = {0};
action.key_combo = key_combo;
CommandArgument argument = {
.number = 1, // default argument = 1
.string = NULL
};
c = config_getc(reader);
if (isdigit(c)) {
// read the argument
char num[32] = {c};
for (size_t i = 1; i < sizeof num - 1; i++) {
c = config_getc(reader);
if (!c || c == ' ') break;
num[i] = c;
}
argument.number = atoll(num);
config_skip_space(reader);
c = config_getc(reader);
} else if (c == '"' || c == '`') {
// string argument
argument.string = config_read_string(reader, (char)c);
config_skip_space(reader);
c = config_getc(reader);
}
if (c == ':') {
char cmd_str[64];
config_read_to_eol(reader, cmd_str, sizeof cmd_str);
// read the command
Command command = command_from_str(cmd_str);
if (command != CMD_UNKNOWN) {
action.command = command;
action.argument = argument;
} else {
config_err(reader, "Unrecognized command %s", cmd_str);
}
} else {
config_err(reader, "Expected ':' for key action. This line should look something like: %s = :command.", key);
}
Settings *settings = &cfg->settings;
bool have = false;
// check if we already have an action for this key combo
arr_foreach_ptr(settings->key_actions, KeyAction, act) {
if (act->key_combo.value == key_combo.value) {
*act = action;
have = true;
break;
}
}
// if this is a new key combo, add an element to the key_actions array
if (!have)
arr_add(settings->key_actions, action);
} break;
case SECTION_EXTENSIONS: {
Language lang = language_from_str(key);
if (lang == LANG_NONE) {
config_err(reader, "Invalid programming language: %s.", key);
} else {
char exts[2048];
config_read_to_eol(reader, exts, sizeof exts);
char *dst = exts;
// get rid of whitespace in extension list
for (const char *src = exts; *src; ++src)
if (!isspace(*src))
*dst++ = *src;
*dst = 0;
Settings *settings = &cfg->settings;
// remove old extensions
u32 *indices = NULL;
arr_foreach_ptr(settings->language_extensions, LanguageExtension, ext) {
if (ext->language == lang) {
arr_add(indices, (u32)(ext - settings->language_extensions));
}
}
for (u32 i = 0; i < arr_len(indices); ++i)
arr_remove(settings->language_extensions, indices[i] - i);
arr_free(indices);
char *p = exts;
while (*p) {
while (*p == ',')
++p;
if (*p == '\0')
break;
size_t len = strcspn(p, ",");
LanguageExtension *ext = arr_addp(settings->language_extensions);
ext->language = lang;
memcpy(ext->extension, p, len);
p += len;
}
}
} break;
case SECTION_CORE: {
char *needs_freeing = NULL;
char *value = NULL;
char line_buf[2048];
c = config_getc(reader);
const char *endptr;
i64 integer = 0;
double floating = 0;
bool is_integer = false;
bool is_floating = false;
bool is_bool = false;
bool boolean = false;
if (c == '"' || c == '`') {
char *string = config_read_string(reader, c);
if (!string) break;
needs_freeing = string;
value = string;
} else {
config_ungetc(reader, c);
config_read_to_eol(reader, line_buf, sizeof line_buf);
value = line_buf;
integer = (i64)strtoll(value, (char **)&endptr, 10);
is_integer = *endptr == '\0';
floating = strtod(value, (char **)&endptr);
is_floating = *endptr == '\0';
if (streq(value, "yes") || streq(value, "on") || streq(value, "true")) {
is_bool = true;
boolean = true;
} else if (streq(value, "no") || streq(value, "off") || streq(value, "false")) {
is_bool = true;
boolean = false;
}
}
const SettingAny *setting_any = NULL;
for (u32 i = 0; i < arr_count(settings_all); ++i) {
SettingAny const *s = &settings_all[i];
if (s->type == 0) break;
if (streq(key, s->name)) {
setting_any = s;
break;
}
}
if (!setting_any) {
if (streq(key, "bg-shader"))
settings_load_bg_shader(ted, cfg, value);
else if (streq(key, "bg-texture"))
settings_load_bg_texture(ted, cfg, value);
// it's probably a bad idea to error on unrecognized settings
// because if we ever remove a setting in the future
// everyone will get errors
break;
}
if (cfg->language != 0 && !setting_any->per_language) {
config_err(reader, "Setting %s cannot be controlled for individual languages.", key);
break;
}
switch (setting_any->type) {
case SETTING_BOOL: {
const SettingBool *setting = &setting_any->u._bool;
if (is_bool)
config_set_bool(cfg, setting, boolean);
else
config_err(reader, "Invalid %s: %s. This should be yes, no, on, or off.", setting->name, value);
} break;
case SETTING_U8: {
const SettingU8 *setting = &setting_any->u._u8;
if (is_integer && integer >= setting->min && integer <= setting->max)
config_set_u8(cfg, setting, (u8)integer);
else
config_err(reader, "Invalid %s: %s. This should be an integer from %u to %u.", setting->name, value, setting->min, setting->max);
} break;
case SETTING_U16: {
const SettingU16 *setting = &setting_any->u._u16;
if (is_integer && integer >= setting->min && integer <= setting->max)
config_set_u16(cfg, setting, (u16)integer);
else
config_err(reader, "Invalid %s: %s. This should be an integer from %u to %u.", setting->name, value, setting->min, setting->max);
} break;
case SETTING_U32: {
const SettingU32 *setting = &setting_any->u._u32;
if (is_integer && integer >= setting->min && integer <= setting->max)
config_set_u32(cfg, setting, (u32)integer);
else
config_err(reader, "Invalid %s: %s. This should be an integer from %" PRIu32 " to %" PRIu32 ".",
setting->name, value, setting->min, setting->max);
} break;
case SETTING_FLOAT: {
const SettingFloat *setting = &setting_any->u._float;
if (is_floating && floating >= setting->min && floating <= setting->max)
config_set_float(cfg, setting, (float)floating);
else
config_err(reader, "Invalid %s: %s. This should be a number from %g to %g.", setting->name, value, setting->min, setting->max);
} break;
case SETTING_STRING: {
const SettingString *setting = &setting_any->u._string;
config_set_string(cfg, setting, value);
} break;
case SETTING_KEY_COMBO: {
const SettingKeyCombo *setting = &setting_any->u._key;
KeyCombo combo = config_parse_key_combo(reader, value);
if (combo.value) {
config_set_key_combo(cfg, setting, combo);
}
} break;
}
free(needs_freeing);
} break;
}
}
static int key_action_qsort_cmp_combo(const void *av, const void *bv) {
const KeyAction *a = av, *b = bv;
if (a->key_combo.value < b->key_combo.value)
return -1;
if (a->key_combo.value > b->key_combo.value)
return 1;
return 0;
}
void settings_finalize(Ted *ted, Settings *settings) {
arr_qsort(settings->key_actions, key_action_qsort_cmp_combo);
settings->text_size = clamp_u16((u16)roundf((float)settings->text_size_no_dpi * ted_get_ui_scaling(ted)), TEXT_SIZE_MIN, TEXT_SIZE_MAX);
#if _WIN32
settings->crlf |= settings->crlf_windows;
#endif
}
static void config_compile_regex(Config *cfg, ConfigReader *reader) {
if (cfg->path_regex) {
const char *regex = cfg->path_regex;
#if _WIN32
char fixed[8192];
// replace forward slashes with backslashes
// (but actually double backslashes because this is a regex)
for (size_t in = 0, out = 0; out < sizeof fixed - 4 && regex[in]; ++in) {
if (regex[in] == '/') {
fixed[out++] = '\\';
fixed[out++] = '\\';
} else {
fixed[out++] = regex[in];
}
fixed[out] = 0;
}
regex = fixed;
#endif
// compile regex
int error_code = 0;
PCRE2_SIZE error_offset = 0;
cfg->path = pcre2_compile_8((const u8 *)regex, PCRE2_ZERO_TERMINATED, PCRE2_ANCHORED, &error_code, &error_offset, NULL);
if (!cfg->path) {
config_err(reader, "Bad regex (at offset %u): %s", (unsigned)error_offset, regex);
free(cfg->path_regex); cfg->path_regex = NULL;
}
}
}
static bool regex_char_needs_escaping(char c) {
return strchr("\\^.$|()[]*+?{}-", c);
}
static void config_read_ted_cfg(Ted *ted, RcStr *cfg_path_rc, const char ***include_stack) {
const char *const cfg_path = rc_str(cfg_path_rc, "");
const bool is_local = str_has_suffix(cfg_path, ".ted.cfg")
&& is_path_separator(cfg_path[strlen(cfg_path) - 9]);
// check for, e.g. %include ted.cfg inside ted.cfg
arr_foreach_ptr(*include_stack, const char *, p_include) {
if (streq(cfg_path, *p_include)) {
char text[1024];
strbuf_cpy(text, "%include loop in config files: ");