]>
Commit | Line | Data |
---|---|---|
1 | #include "cache.h" | |
2 | #include "config.h" | |
3 | #include "userdiff.h" | |
4 | #include "attr.h" | |
5 | ||
6 | static struct userdiff_driver *drivers; | |
7 | static int ndrivers; | |
8 | static int drivers_alloc; | |
9 | ||
10 | #define PATTERNS(name, pattern, word_regex) \ | |
11 | { name, NULL, -1, { pattern, REG_EXTENDED }, \ | |
12 | word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" } | |
13 | #define IPATTERN(name, pattern, word_regex) \ | |
14 | { name, NULL, -1, { pattern, REG_EXTENDED | REG_ICASE }, \ | |
15 | word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" } | |
16 | static struct userdiff_driver builtin_drivers[] = { | |
17 | IPATTERN("ada", | |
18 | "!^(.*[ \t])?(is[ \t]+new|renames|is[ \t]+separate)([ \t].*)?$\n" | |
19 | "!^[ \t]*with[ \t].*$\n" | |
20 | "^[ \t]*((procedure|function)[ \t]+.*)$\n" | |
21 | "^[ \t]*((package|protected|task)[ \t]+.*)$", | |
22 | /* -- */ | |
23 | "[a-zA-Z][a-zA-Z0-9_]*" | |
24 | "|[-+]?[0-9][0-9#_.aAbBcCdDeEfF]*([eE][+-]?[0-9_]+)?" | |
25 | "|=>|\\.\\.|\\*\\*|:=|/=|>=|<=|<<|>>|<>"), | |
26 | IPATTERN("fortran", | |
27 | "!^([C*]|[ \t]*!)\n" | |
28 | "!^[ \t]*MODULE[ \t]+PROCEDURE[ \t]\n" | |
29 | "^[ \t]*((END[ \t]+)?(PROGRAM|MODULE|BLOCK[ \t]+DATA" | |
30 | "|([^'\" \t]+[ \t]+)*(SUBROUTINE|FUNCTION))[ \t]+[A-Z].*)$", | |
31 | /* -- */ | |
32 | "[a-zA-Z][a-zA-Z0-9_]*" | |
33 | "|\\.([Ee][Qq]|[Nn][Ee]|[Gg][TtEe]|[Ll][TtEe]|[Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Aa][Nn][Dd]|[Oo][Rr]|[Nn]?[Ee][Qq][Vv]|[Nn][Oo][Tt])\\." | |
34 | /* numbers and format statements like 2E14.4, or ES12.6, 9X. | |
35 | * Don't worry about format statements without leading digits since | |
36 | * they would have been matched above as a variable anyway. */ | |
37 | "|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?" | |
38 | "|//|\\*\\*|::|[/<>=]="), | |
39 | IPATTERN("fountain", "^((\\.[^.]|(int|ext|est|int\\.?/ext|i/e)[. ]).*)$", | |
40 | "[^ \t-]+"), | |
41 | PATTERNS("golang", | |
42 | /* Functions */ | |
43 | "^[ \t]*(func[ \t]*.*(\\{[ \t]*)?)\n" | |
44 | /* Structs and interfaces */ | |
45 | "^[ \t]*(type[ \t].*(struct|interface)[ \t]*(\\{[ \t]*)?)", | |
46 | /* -- */ | |
47 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
48 | "|[-+0-9.eE]+i?|0[xX]?[0-9a-fA-F]+i?" | |
49 | "|[-+*/<>%&^|=!:]=|--|\\+\\+|<<=?|>>=?|&\\^=?|&&|\\|\\||<-|\\.{3}"), | |
50 | PATTERNS("html", "^[ \t]*(<[Hh][1-6]([ \t].*)?>.*)$", | |
51 | "[^<>= \t]+"), | |
52 | PATTERNS("java", | |
53 | "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" | |
54 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$", | |
55 | /* -- */ | |
56 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
57 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
58 | "|[-+*/<>%&^|=!]=" | |
59 | "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"), | |
60 | PATTERNS("matlab", | |
61 | /* | |
62 | * Octave pattern is mostly the same as matlab, except that '%%%' and | |
63 | * '##' can also be used to begin code sections, in addition to '%%' | |
64 | * that is understood by both. | |
65 | */ | |
66 | "^[[:space:]]*((classdef|function)[[:space:]].*)$|^(%%%?|##)[[:space:]].*$", | |
67 | "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"), | |
68 | PATTERNS("objc", | |
69 | /* Negate C statements that can look like functions */ | |
70 | "!^[ \t]*(do|for|if|else|return|switch|while)\n" | |
71 | /* Objective-C methods */ | |
72 | "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" | |
73 | /* C functions */ | |
74 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n" | |
75 | /* Objective-C class/protocol definitions */ | |
76 | "^(@(implementation|interface|protocol)[ \t].*)$", | |
77 | /* -- */ | |
78 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
79 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
80 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), | |
81 | PATTERNS("pascal", | |
82 | "^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|" | |
83 | "implementation|initialization|finalization)[ \t]*.*)$" | |
84 | "\n" | |
85 | "^(.*=[ \t]*(class|record).*)$", | |
86 | /* -- */ | |
87 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
88 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
89 | "|<>|<=|>=|:=|\\.\\."), | |
90 | PATTERNS("perl", | |
91 | "^package .*\n" | |
92 | "^sub [[:alnum:]_':]+[ \t]*" | |
93 | "(\\([^)]*\\)[ \t]*)?" /* prototype */ | |
94 | /* | |
95 | * Attributes. A regex can't count nested parentheses, | |
96 | * so just slurp up whatever we see, taking care not | |
97 | * to accept lines like "sub foo; # defined elsewhere". | |
98 | * | |
99 | * An attribute could contain a semicolon, but at that | |
100 | * point it seems reasonable enough to give up. | |
101 | */ | |
102 | "(:[^;#]*)?" | |
103 | "(\\{[ \t]*)?" /* brace can come here or on the next line */ | |
104 | "(#.*)?$\n" /* comment */ | |
105 | "^(BEGIN|END|INIT|CHECK|UNITCHECK|AUTOLOAD|DESTROY)[ \t]*" | |
106 | "(\\{[ \t]*)?" /* brace can come here or on the next line */ | |
107 | "(#.*)?$\n" | |
108 | "^=head[0-9] .*", /* POD */ | |
109 | /* -- */ | |
110 | "[[:alpha:]_'][[:alnum:]_']*" | |
111 | "|0[xb]?[0-9a-fA-F_]*" | |
112 | /* taking care not to interpret 3..5 as (3.)(.5) */ | |
113 | "|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?" | |
114 | "|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::" | |
115 | "|&&=|\\|\\|=|//=|\\*\\*=" | |
116 | "|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?" | |
117 | "|[-+*/%.^&<>=!|]=" | |
118 | "|=~|!~" | |
119 | "|<<|<>|<=>|>>"), | |
120 | PATTERNS("php", | |
121 | "^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n" | |
122 | "^[\t ]*((((final|abstract)[\t ]+)?class|interface|trait).*)$", | |
123 | /* -- */ | |
124 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
125 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
126 | "|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->"), | |
127 | PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$", | |
128 | /* -- */ | |
129 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
130 | "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?" | |
131 | "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"), | |
132 | /* -- */ | |
133 | PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$", | |
134 | /* -- */ | |
135 | "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*" | |
136 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?." | |
137 | "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"), | |
138 | PATTERNS("rust", | |
139 | "^[\t ]*((pub(\\([^\\)]+\\))?[\t ]+)?((async|const|unsafe|extern([\t ]+\"[^\"]+\"))[\t ]+)?(struct|enum|union|mod|trait|fn|impl)[< \t]+[^;]*)$", | |
140 | /* -- */ | |
141 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
142 | "|[0-9][0-9_a-fA-Fiosuxz]*(\\.([0-9]*[eE][+-]?)?[0-9_fF]*)?" | |
143 | "|[-+*\\/<>%&^|=!:]=|<<=?|>>=?|&&|\\|\\||->|=>|\\.{2}=|\\.{3}|::"), | |
144 | PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", | |
145 | "[={}\"]|[^={}\" \t]+"), | |
146 | PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", | |
147 | "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+"), | |
148 | PATTERNS("cpp", | |
149 | /* Jump targets or access declarations */ | |
150 | "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:[[:space:]]*($|/[/*])\n" | |
151 | /* functions/methods, variables, and compounds at top level */ | |
152 | "^((::[[:space:]]*)?[A-Za-z_].*)$", | |
153 | /* -- */ | |
154 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
155 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lLuU]*" | |
156 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*"), | |
157 | PATTERNS("csharp", | |
158 | /* Keywords */ | |
159 | "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n" | |
160 | /* Methods and constructors */ | |
161 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe|async)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[<>@._[:alnum:]]+[ \t]*\\(.*\\))[ \t]*$\n" | |
162 | /* Properties */ | |
163 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[@._[:alnum:]]+)[ \t]*$\n" | |
164 | /* Type definitions */ | |
165 | "^[ \t]*(((static|public|internal|private|protected|new|unsafe|sealed|abstract|partial)[ \t]+)*(class|enum|interface|struct)[ \t]+.*)$\n" | |
166 | /* Namespace */ | |
167 | "^[ \t]*(namespace[ \t]+.*)$", | |
168 | /* -- */ | |
169 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
170 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
171 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), | |
172 | IPATTERN("css", | |
173 | "![:;][[:space:]]*$\n" | |
174 | "^[_a-z0-9].*$", | |
175 | /* -- */ | |
176 | /* | |
177 | * This regex comes from W3C CSS specs. Should theoretically also | |
178 | * allow ISO 10646 characters U+00A0 and higher, | |
179 | * but they are not handled in this regex. | |
180 | */ | |
181 | "-?[_a-zA-Z][-_a-zA-Z0-9]*" /* identifiers */ | |
182 | "|-?[0-9]+|\\#[0-9a-fA-F]+" /* numbers */ | |
183 | ), | |
184 | { "default", NULL, -1, { NULL, 0 } }, | |
185 | }; | |
186 | #undef PATTERNS | |
187 | #undef IPATTERN | |
188 | ||
189 | static struct userdiff_driver driver_true = { | |
190 | "diff=true", | |
191 | NULL, | |
192 | 0, | |
193 | { NULL, 0 } | |
194 | }; | |
195 | ||
196 | static struct userdiff_driver driver_false = { | |
197 | "!diff", | |
198 | NULL, | |
199 | 1, | |
200 | { NULL, 0 } | |
201 | }; | |
202 | ||
203 | static struct userdiff_driver *userdiff_find_by_namelen(const char *k, int len) | |
204 | { | |
205 | int i; | |
206 | for (i = 0; i < ndrivers; i++) { | |
207 | struct userdiff_driver *drv = drivers + i; | |
208 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
209 | return drv; | |
210 | } | |
211 | for (i = 0; i < ARRAY_SIZE(builtin_drivers); i++) { | |
212 | struct userdiff_driver *drv = builtin_drivers + i; | |
213 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
214 | return drv; | |
215 | } | |
216 | return NULL; | |
217 | } | |
218 | ||
219 | static int parse_funcname(struct userdiff_funcname *f, const char *k, | |
220 | const char *v, int cflags) | |
221 | { | |
222 | if (git_config_string(&f->pattern, k, v) < 0) | |
223 | return -1; | |
224 | f->cflags = cflags; | |
225 | return 0; | |
226 | } | |
227 | ||
228 | static int parse_tristate(int *b, const char *k, const char *v) | |
229 | { | |
230 | if (v && !strcasecmp(v, "auto")) | |
231 | *b = -1; | |
232 | else | |
233 | *b = git_config_bool(k, v); | |
234 | return 0; | |
235 | } | |
236 | ||
237 | static int parse_bool(int *b, const char *k, const char *v) | |
238 | { | |
239 | *b = git_config_bool(k, v); | |
240 | return 0; | |
241 | } | |
242 | ||
243 | int userdiff_config(const char *k, const char *v) | |
244 | { | |
245 | struct userdiff_driver *drv; | |
246 | const char *name, *type; | |
247 | int namelen; | |
248 | ||
249 | if (parse_config_key(k, "diff", &name, &namelen, &type) || !name) | |
250 | return 0; | |
251 | ||
252 | drv = userdiff_find_by_namelen(name, namelen); | |
253 | if (!drv) { | |
254 | ALLOC_GROW(drivers, ndrivers+1, drivers_alloc); | |
255 | drv = &drivers[ndrivers++]; | |
256 | memset(drv, 0, sizeof(*drv)); | |
257 | drv->name = xmemdupz(name, namelen); | |
258 | drv->binary = -1; | |
259 | } | |
260 | ||
261 | if (!strcmp(type, "funcname")) | |
262 | return parse_funcname(&drv->funcname, k, v, 0); | |
263 | if (!strcmp(type, "xfuncname")) | |
264 | return parse_funcname(&drv->funcname, k, v, REG_EXTENDED); | |
265 | if (!strcmp(type, "binary")) | |
266 | return parse_tristate(&drv->binary, k, v); | |
267 | if (!strcmp(type, "command")) | |
268 | return git_config_string(&drv->external, k, v); | |
269 | if (!strcmp(type, "textconv")) | |
270 | return git_config_string(&drv->textconv, k, v); | |
271 | if (!strcmp(type, "cachetextconv")) | |
272 | return parse_bool(&drv->textconv_want_cache, k, v); | |
273 | if (!strcmp(type, "wordregex")) | |
274 | return git_config_string(&drv->word_regex, k, v); | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | struct userdiff_driver *userdiff_find_by_name(const char *name) | |
280 | { | |
281 | int len = strlen(name); | |
282 | return userdiff_find_by_namelen(name, len); | |
283 | } | |
284 | ||
285 | struct userdiff_driver *userdiff_find_by_path(struct index_state *istate, | |
286 | const char *path) | |
287 | { | |
288 | static struct attr_check *check; | |
289 | ||
290 | if (!check) | |
291 | check = attr_check_initl("diff", NULL); | |
292 | if (!path) | |
293 | return NULL; | |
294 | git_check_attr(istate, path, check); | |
295 | ||
296 | if (ATTR_TRUE(check->items[0].value)) | |
297 | return &driver_true; | |
298 | if (ATTR_FALSE(check->items[0].value)) | |
299 | return &driver_false; | |
300 | if (ATTR_UNSET(check->items[0].value)) | |
301 | return NULL; | |
302 | return userdiff_find_by_name(check->items[0].value); | |
303 | } | |
304 | ||
305 | struct userdiff_driver *userdiff_get_textconv(struct repository *r, | |
306 | struct userdiff_driver *driver) | |
307 | { | |
308 | if (!driver->textconv) | |
309 | return NULL; | |
310 | ||
311 | if (driver->textconv_want_cache && !driver->textconv_cache) { | |
312 | struct notes_cache *c = xmalloc(sizeof(*c)); | |
313 | struct strbuf name = STRBUF_INIT; | |
314 | ||
315 | strbuf_addf(&name, "textconv/%s", driver->name); | |
316 | notes_cache_init(r, c, name.buf, driver->textconv); | |
317 | driver->textconv_cache = c; | |
318 | strbuf_release(&name); | |
319 | } | |
320 | ||
321 | return driver; | |
322 | } |