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Commit | Line | Data |
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d9bae1a1 | 1 | #include "cache.h" |
be58e70d JK |
2 | #include "userdiff.h" |
3 | #include "cache.h" | |
4 | #include "attr.h" | |
5 | ||
6 | static struct userdiff_driver *drivers; | |
7 | static int ndrivers; | |
8 | static int drivers_alloc; | |
9 | ||
ae3b970a | 10 | #define PATTERNS(name, pattern, word_regex) \ |
664d44ee JN |
11 | { name, NULL, -1, { pattern, REG_EXTENDED }, \ |
12 | word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" } | |
909a5494 | 13 | #define IPATTERN(name, pattern, word_regex) \ |
664d44ee JN |
14 | { name, NULL, -1, { pattern, REG_EXTENDED | REG_ICASE }, \ |
15 | word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" } | |
be58e70d | 16 | static struct userdiff_driver builtin_drivers[] = { |
909a5494 BC |
17 | IPATTERN("fortran", |
18 | "!^([C*]|[ \t]*!)\n" | |
19 | "!^[ \t]*MODULE[ \t]+PROCEDURE[ \t]\n" | |
20 | "^[ \t]*((END[ \t]+)?(PROGRAM|MODULE|BLOCK[ \t]+DATA" | |
21 | "|([^'\" \t]+[ \t]+)*(SUBROUTINE|FUNCTION))[ \t]+[A-Z].*)$", | |
22 | /* -- */ | |
23 | "[a-zA-Z][a-zA-Z0-9_]*" | |
24 | "|\\.([Ee][Qq]|[Nn][Ee]|[Gg][TtEe]|[Ll][TtEe]|[Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Aa][Nn][Dd]|[Oo][Rr]|[Nn]?[Ee][Qq][Vv]|[Nn][Oo][Tt])\\." | |
25 | /* numbers and format statements like 2E14.4, or ES12.6, 9X. | |
26 | * Don't worry about format statements without leading digits since | |
27 | * they would have been matched above as a variable anyway. */ | |
28 | "|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?" | |
664d44ee | 29 | "|//|\\*\\*|::|[/<>=]="), |
80c49c3d | 30 | PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$", |
664d44ee | 31 | "[^<>= \t]+"), |
80c49c3d | 32 | PATTERNS("java", |
be58e70d | 33 | "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" |
959e2e64 PB |
34 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$", |
35 | /* -- */ | |
80c49c3d TR |
36 | "[a-zA-Z_][a-zA-Z0-9_]*" |
37 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
38 | "|[-+*/<>%&^|=!]=" | |
664d44ee | 39 | "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"), |
53b10a14 GH |
40 | PATTERNS("matlab", |
41 | "^[[:space:]]*((classdef|function)[[:space:]].*)$|^%%[[:space:]].*$", | |
42 | "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"), | |
80c49c3d | 43 | PATTERNS("objc", |
be58e70d JK |
44 | /* Negate C statements that can look like functions */ |
45 | "!^[ \t]*(do|for|if|else|return|switch|while)\n" | |
46 | /* Objective-C methods */ | |
47 | "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" | |
48 | /* C functions */ | |
959e2e64 | 49 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n" |
be58e70d | 50 | /* Objective-C class/protocol definitions */ |
80c49c3d TR |
51 | "^(@(implementation|interface|protocol)[ \t].*)$", |
52 | /* -- */ | |
53 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
54 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 55 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
80c49c3d | 56 | PATTERNS("pascal", |
ad5b6942 | 57 | "^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|" |
be58e70d JK |
58 | "implementation|initialization|finalization)[ \t]*.*)$" |
59 | "\n" | |
80c49c3d TR |
60 | "^(.*=[ \t]*(class|record).*)$", |
61 | /* -- */ | |
62 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
63 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
664d44ee | 64 | "|<>|<=|>=|:=|\\.\\."), |
71a5d4bc | 65 | PATTERNS("perl", |
ea2ca449 JN |
66 | "^package .*\n" |
67 | "^sub [[:alnum:]_':]+[ \t]*" | |
68 | "(\\([^)]*\\)[ \t]*)?" /* prototype */ | |
69 | /* | |
70 | * Attributes. A regex can't count nested parentheses, | |
71 | * so just slurp up whatever we see, taking care not | |
72 | * to accept lines like "sub foo; # defined elsewhere". | |
73 | * | |
74 | * An attribute could contain a semicolon, but at that | |
75 | * point it seems reasonable enough to give up. | |
76 | */ | |
77 | "(:[^;#]*)?" | |
78 | "(\\{[ \t]*)?" /* brace can come here or on the next line */ | |
79 | "(#.*)?$\n" /* comment */ | |
f143d9c6 | 80 | "^(BEGIN|END|INIT|CHECK|UNITCHECK|AUTOLOAD|DESTROY)[ \t]*" |
ea2ca449 JN |
81 | "(\\{[ \t]*)?" /* brace can come here or on the next line */ |
82 | "(#.*)?$\n" | |
12f0967a | 83 | "^=head[0-9] .*", /* POD */ |
71a5d4bc JN |
84 | /* -- */ |
85 | "[[:alpha:]_'][[:alnum:]_']*" | |
86 | "|0[xb]?[0-9a-fA-F_]*" | |
87 | /* taking care not to interpret 3..5 as (3.)(.5) */ | |
88 | "|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?" | |
89 | "|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::" | |
90 | "|&&=|\\|\\|=|//=|\\*\\*=" | |
91 | "|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?" | |
92 | "|[-+*/%.^&<>=!|]=" | |
93 | "|=~|!~" | |
664d44ee | 94 | "|<<|<>|<=>|>>"), |
6d2f208c BS |
95 | PATTERNS("php", |
96 | "^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n" | |
97 | "^[\t ]*(class.*)$", | |
80c49c3d TR |
98 | /* -- */ |
99 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
100 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
664d44ee | 101 | "|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->"), |
80c49c3d TR |
102 | PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$", |
103 | /* -- */ | |
104 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
105 | "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 106 | "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"), |
80c49c3d TR |
107 | /* -- */ |
108 | PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$", | |
109 | /* -- */ | |
110 | "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*" | |
111 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?." | |
664d44ee | 112 | "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"), |
80c49c3d TR |
113 | PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", |
114 | "[={}\"]|[^={}\" \t]+"), | |
115 | PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", | |
664d44ee | 116 | "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+"), |
80c49c3d TR |
117 | PATTERNS("cpp", |
118 | /* Jump targets or access declarations */ | |
119 | "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:.*$\n" | |
120 | /* C/++ functions/methods at top level */ | |
37e7793d | 121 | "^([A-Za-z_][A-Za-z_0-9]*([ \t*]+[A-Za-z_][A-Za-z_0-9]*([ \t]*::[ \t]*[^[:space:]]+)?){1,}[ \t]*\\([^;]*)$\n" |
80c49c3d TR |
122 | /* compound type at top level */ |
123 | "^((struct|class|enum)[^;]*)$", | |
124 | /* -- */ | |
125 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
126 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 127 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
b221207d PO |
128 | PATTERNS("csharp", |
129 | /* Keywords */ | |
130 | "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n" | |
131 | /* Methods and constructors */ | |
132 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[<>@._[:alnum:]]+[ \t]*\\(.*\\))[ \t]*$\n" | |
133 | /* Properties */ | |
134 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[@._[:alnum:]]+)[ \t]*$\n" | |
135 | /* Type definitions */ | |
136 | "^[ \t]*(((static|public|internal|private|protected|new|unsafe|sealed|abstract|partial)[ \t]+)*(class|enum|interface|struct)[ \t]+.*)$\n" | |
137 | /* Namespace */ | |
138 | "^[ \t]*(namespace[ \t]+.*)$", | |
139 | /* -- */ | |
140 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
141 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 142 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
122aa6f9 | 143 | { "default", NULL, -1, { NULL, 0 } }, |
be58e70d | 144 | }; |
80c49c3d | 145 | #undef PATTERNS |
909a5494 | 146 | #undef IPATTERN |
be58e70d JK |
147 | |
148 | static struct userdiff_driver driver_true = { | |
149 | "diff=true", | |
150 | NULL, | |
122aa6f9 | 151 | 0, |
be58e70d JK |
152 | { NULL, 0 } |
153 | }; | |
be58e70d JK |
154 | |
155 | static struct userdiff_driver driver_false = { | |
156 | "!diff", | |
157 | NULL, | |
122aa6f9 | 158 | 1, |
be58e70d JK |
159 | { NULL, 0 } |
160 | }; | |
be58e70d JK |
161 | |
162 | static struct userdiff_driver *userdiff_find_by_namelen(const char *k, int len) | |
163 | { | |
164 | int i; | |
165 | for (i = 0; i < ndrivers; i++) { | |
166 | struct userdiff_driver *drv = drivers + i; | |
167 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
168 | return drv; | |
169 | } | |
170 | for (i = 0; i < ARRAY_SIZE(builtin_drivers); i++) { | |
171 | struct userdiff_driver *drv = builtin_drivers + i; | |
172 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
173 | return drv; | |
174 | } | |
175 | return NULL; | |
176 | } | |
177 | ||
178 | static struct userdiff_driver *parse_driver(const char *var, | |
179 | const char *value, const char *type) | |
180 | { | |
181 | struct userdiff_driver *drv; | |
182 | const char *dot; | |
183 | const char *name; | |
184 | int namelen; | |
185 | ||
186 | if (prefixcmp(var, "diff.")) | |
187 | return NULL; | |
188 | dot = strrchr(var, '.'); | |
189 | if (dot == var + 4) | |
190 | return NULL; | |
191 | if (strcmp(type, dot+1)) | |
192 | return NULL; | |
193 | ||
194 | name = var + 5; | |
195 | namelen = dot - name; | |
196 | drv = userdiff_find_by_namelen(name, namelen); | |
197 | if (!drv) { | |
198 | ALLOC_GROW(drivers, ndrivers+1, drivers_alloc); | |
199 | drv = &drivers[ndrivers++]; | |
200 | memset(drv, 0, sizeof(*drv)); | |
201 | drv->name = xmemdupz(name, namelen); | |
122aa6f9 | 202 | drv->binary = -1; |
be58e70d JK |
203 | } |
204 | return drv; | |
205 | } | |
206 | ||
207 | static int parse_funcname(struct userdiff_funcname *f, const char *k, | |
208 | const char *v, int cflags) | |
209 | { | |
210 | if (git_config_string(&f->pattern, k, v) < 0) | |
211 | return -1; | |
212 | f->cflags = cflags; | |
213 | return 1; | |
214 | } | |
215 | ||
216 | static int parse_string(const char **d, const char *k, const char *v) | |
217 | { | |
218 | if (git_config_string(d, k, v) < 0) | |
219 | return -1; | |
220 | return 1; | |
221 | } | |
222 | ||
122aa6f9 JK |
223 | static int parse_tristate(int *b, const char *k, const char *v) |
224 | { | |
225 | if (v && !strcasecmp(v, "auto")) | |
226 | *b = -1; | |
227 | else | |
228 | *b = git_config_bool(k, v); | |
229 | return 1; | |
230 | } | |
231 | ||
d9bae1a1 JK |
232 | static int parse_bool(int *b, const char *k, const char *v) |
233 | { | |
234 | *b = git_config_bool(k, v); | |
235 | return 1; | |
236 | } | |
237 | ||
c7534ef4 | 238 | int userdiff_config(const char *k, const char *v) |
be58e70d JK |
239 | { |
240 | struct userdiff_driver *drv; | |
241 | ||
242 | if ((drv = parse_driver(k, v, "funcname"))) | |
243 | return parse_funcname(&drv->funcname, k, v, 0); | |
244 | if ((drv = parse_driver(k, v, "xfuncname"))) | |
245 | return parse_funcname(&drv->funcname, k, v, REG_EXTENDED); | |
122aa6f9 JK |
246 | if ((drv = parse_driver(k, v, "binary"))) |
247 | return parse_tristate(&drv->binary, k, v); | |
be58e70d JK |
248 | if ((drv = parse_driver(k, v, "command"))) |
249 | return parse_string(&drv->external, k, v); | |
9cb92c39 JK |
250 | if ((drv = parse_driver(k, v, "textconv"))) |
251 | return parse_string(&drv->textconv, k, v); | |
d9bae1a1 JK |
252 | if ((drv = parse_driver(k, v, "cachetextconv"))) |
253 | return parse_bool(&drv->textconv_want_cache, k, v); | |
80c49c3d TR |
254 | if ((drv = parse_driver(k, v, "wordregex"))) |
255 | return parse_string(&drv->word_regex, k, v); | |
be58e70d JK |
256 | |
257 | return 0; | |
258 | } | |
259 | ||
260 | struct userdiff_driver *userdiff_find_by_name(const char *name) { | |
261 | int len = strlen(name); | |
262 | return userdiff_find_by_namelen(name, len); | |
263 | } | |
264 | ||
265 | struct userdiff_driver *userdiff_find_by_path(const char *path) | |
266 | { | |
267 | static struct git_attr *attr; | |
268 | struct git_attr_check check; | |
269 | ||
270 | if (!attr) | |
7fb0eaa2 | 271 | attr = git_attr("diff"); |
be58e70d JK |
272 | check.attr = attr; |
273 | ||
274 | if (!path) | |
275 | return NULL; | |
d932f4eb | 276 | if (git_check_attr(path, 1, &check)) |
be58e70d JK |
277 | return NULL; |
278 | ||
279 | if (ATTR_TRUE(check.value)) | |
280 | return &driver_true; | |
281 | if (ATTR_FALSE(check.value)) | |
282 | return &driver_false; | |
283 | if (ATTR_UNSET(check.value)) | |
284 | return NULL; | |
285 | return userdiff_find_by_name(check.value); | |
286 | } | |
3813e690 JK |
287 | |
288 | struct userdiff_driver *userdiff_get_textconv(struct userdiff_driver *driver) | |
289 | { | |
290 | if (!driver->textconv) | |
291 | return NULL; | |
292 | ||
293 | if (driver->textconv_want_cache && !driver->textconv_cache) { | |
294 | struct notes_cache *c = xmalloc(sizeof(*c)); | |
295 | struct strbuf name = STRBUF_INIT; | |
296 | ||
297 | strbuf_addf(&name, "textconv/%s", driver->name); | |
298 | notes_cache_init(c, name.buf, driver->textconv); | |
299 | driver->textconv_cache = c; | |
300 | } | |
301 | ||
302 | return driver; | |
303 | } |