1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
#include "lang.h"
#include "minibuffer.h"
#include "settings.h"
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void define_lang(const char *name, const char *id, const char *pattern,
uint32_t tab_width, const char *lang_srv) {
char namebuf[128] = {0};
const char *key = setting_join_key("languages", id);
const char *pat_key = setting_join_key(key, "pattern");
settings_set_default(pat_key,
(struct setting_value){.type = Setting_String,
.string_value = (char *)pattern});
free((void *)pat_key);
const char *tabw_key = setting_join_key(key, "tab-width");
settings_set_default(tabw_key,
(struct setting_value){.type = Setting_Number,
.number_value = tab_width});
free((void *)tabw_key);
// TODO: move lang server
if (lang_srv != NULL) {
const char *langsrv_key = setting_join_key(key, "lang-srv");
settings_set_default(
langsrv_key, (struct setting_value){.type = Setting_String,
.string_value = (char *)lang_srv});
free((void *)langsrv_key);
}
const char *name_key = setting_join_key(key, "name");
settings_set_default(name_key,
(struct setting_value){.type = Setting_String,
.string_value = (char *)name});
free((void *)name_key);
free((void *)key);
}
static struct language g_fundamental = {
.name = "Fundamental",
.id = "fnd",
.tab_width = 4,
.lang_srv = NULL,
};
void languages_init(bool register_default) {
if (register_default) {
define_lang("C", "c", ".*\\.(c|h)", 2, "clangd");
define_lang("C++", "cxx", ".*\\.(cpp|cxx|cc|c++|hh|h)", 2, "clangd");
define_lang("Rust", "rs", ".*\\.rs", 4, "rust-analyzer");
define_lang("Nix", "nix", ".*\\.nix", 4, "rnix-lsp");
define_lang("Make", "make", ".*(Makefile|\\.mk)", 4, NULL);
define_lang("Python", "python", ".*\\.py", 4, NULL);
define_lang("Git Commit Message", "gitcommit", "COMMIT_EDITMSG", 4, NULL);
}
}
void lang_destroy(struct language *lang) {
if (strlen(lang->id) != 3 || strncmp(lang->id, "fnd", 3) != 0) {
free((void *)lang->id);
}
}
static struct language lang_from_settings(const char *id) {
struct language l;
l.id = strdup(id);
const char *key = setting_join_key("languages", id);
// name
const char *name_key = setting_join_key(key, "name");
struct setting *name = settings_get(name_key);
free((void *)name_key);
l.name = name != NULL ? name->value.string_value : "Unknown";
// tab width
const char *tabw_key = setting_join_key(key, "tab-width");
struct setting *tab_width = settings_get(tabw_key);
free((void *)tabw_key);
// fall back to global value
if (tab_width == NULL) {
tab_width = settings_get("editor.tab-width");
}
l.tab_width = tab_width != NULL ? tab_width->value.number_value : 4;
// language server, TODO: move
const char *langsrv_key = setting_join_key(key, "lang-srv");
struct setting *lang_srv = settings_get(langsrv_key);
free((void *)langsrv_key);
l.lang_srv = lang_srv != NULL ? lang_srv->value.string_value : NULL;
free((void *)key);
return l;
}
static void next_ext(const char *curr, const char **nxt, const char **end) {
if (curr == NULL) {
*nxt = *end = NULL;
return;
}
*nxt = curr;
*end = curr + strlen(curr);
const char *spc = strchr(curr, ' ');
if (spc != NULL) {
*end = spc;
}
}
void lang_settings(struct language *lang, struct setting **settings[],
uint32_t *nsettings) {
const char *key = setting_join_key("languages", lang->id);
settings_get_prefix(key, settings, nsettings);
free((void *)key);
}
struct setting *lang_setting(struct language *lang, const char *key) {
const char *langkey = setting_join_key("languages", lang->id);
const char *setting_key = setting_join_key(langkey, key);
struct setting *res = settings_get(setting_key);
free((void *)setting_key);
free((void *)langkey);
return res;
}
void lang_setting_set(struct language *lang, const char *key,
struct setting_value value) {
const char *langkey = setting_join_key("languages", lang->id);
const char *setting_key = setting_join_key(langkey, key);
settings_set(setting_key, value);
free((void *)setting_key);
free((void *)langkey);
}
void lang_setting_set_default(struct language *lang, const char *key,
struct setting_value value) {
const char *langkey = setting_join_key("languages", lang->id);
const char *setting_key = setting_join_key(langkey, key);
settings_set_default(setting_key, value);
free((void *)setting_key);
free((void *)langkey);
}
struct language lang_from_filename(const char *filename) {
if (strlen(filename) == 0) {
return g_fundamental;
}
// get "languages.*" settings
struct setting **settings = NULL;
uint32_t nsettings = 0;
settings_get_prefix("languages.", &settings, &nsettings);
// find the first one with a matching regex
for (uint32_t i = 0; i < nsettings; ++i) {
struct setting *setting = settings[i];
char *setting_name = strrchr(setting->path, '.');
if (setting_name != NULL && strncmp(setting_name + 1, "pattern", 5) == 0) {
const char *val = setting->value.string_value;
regex_t regex;
if (regcomp(®ex, val, REG_EXTENDED) == 0 &&
regexec(®ex, filename, 0, NULL, 0) == 0) {
// len of "languages."
size_t id_len = setting_name - (setting->path + 10);
char lang_id[128] = {0};
memcpy(lang_id, setting->path + 10, id_len);
lang_id[id_len] = '\0';
regfree(®ex);
free(settings);
return lang_from_settings(lang_id);
}
regfree(®ex);
}
}
free(settings);
// fall back to fundamental
return g_fundamental;
}
struct language lang_from_id(const char *id) {
if (id == NULL || (strlen(id) == 3 && strncmp(id, "fnd", 3) == 0) ||
strlen(id) == 0) {
return g_fundamental;
}
// check that it exists
struct setting **settings = NULL;
uint32_t nsettings = 0;
const char *lang_path = setting_join_key("languages", id);
settings_get_prefix(lang_path, &settings, &nsettings);
free((void *)lang_path);
free(settings);
if (nsettings > 0) {
return lang_from_settings(id);
} else {
minibuffer_echo_timeout(4, "failed to find language \"%s\"", id);
return g_fundamental;
}
}
|
