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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[] = { |
e90d065e | 17 | IPATTERN("ada", |
39a87a29 | 18 | "!^(.*[ \t])?(is[ \t]+new|renames|is[ \t]+separate)([ \t].*)?$\n" |
e90d065e AJ |
19 | "!^[ \t]*with[ \t].*$\n" |
20 | "^[ \t]*((procedure|function)[ \t]+.*)$\n" | |
21 | "^[ \t]*((package|protected|task)[ \t]+.*)$", | |
22 | /* -- */ | |
23 | "[a-zA-Z][a-zA-Z0-9_]*" | |
39a87a29 | 24 | "|[-+]?[0-9][0-9#_.aAbBcCdDeEfF]*([eE][+-]?[0-9_]+)?" |
e90d065e | 25 | "|=>|\\.\\.|\\*\\*|:=|/=|>=|<=|<<|>>|<>"), |
909a5494 BC |
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].*)$", | |
31 | /* -- */ | |
32 | "[a-zA-Z][a-zA-Z0-9_]*" | |
33 | "|\\.([Ee][Qq]|[Nn][Ee]|[Gg][TtEe]|[Ll][TtEe]|[Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Aa][Nn][Dd]|[Oo][Rr]|[Nn]?[Ee][Qq][Vv]|[Nn][Oo][Tt])\\." | |
34 | /* numbers and format statements like 2E14.4, or ES12.6, 9X. | |
35 | * Don't worry about format statements without leading digits since | |
36 | * they would have been matched above as a variable anyway. */ | |
37 | "|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?" | |
664d44ee | 38 | "|//|\\*\\*|::|[/<>=]="), |
80c49c3d | 39 | PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$", |
664d44ee | 40 | "[^<>= \t]+"), |
80c49c3d | 41 | PATTERNS("java", |
be58e70d | 42 | "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" |
959e2e64 PB |
43 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$", |
44 | /* -- */ | |
80c49c3d TR |
45 | "[a-zA-Z_][a-zA-Z0-9_]*" |
46 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
47 | "|[-+*/<>%&^|=!]=" | |
664d44ee | 48 | "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"), |
53b10a14 GH |
49 | PATTERNS("matlab", |
50 | "^[[:space:]]*((classdef|function)[[:space:]].*)$|^%%[[:space:]].*$", | |
51 | "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"), | |
80c49c3d | 52 | PATTERNS("objc", |
be58e70d JK |
53 | /* Negate C statements that can look like functions */ |
54 | "!^[ \t]*(do|for|if|else|return|switch|while)\n" | |
55 | /* Objective-C methods */ | |
56 | "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" | |
57 | /* C functions */ | |
959e2e64 | 58 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n" |
be58e70d | 59 | /* Objective-C class/protocol definitions */ |
80c49c3d TR |
60 | "^(@(implementation|interface|protocol)[ \t].*)$", |
61 | /* -- */ | |
62 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
63 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 64 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
80c49c3d | 65 | PATTERNS("pascal", |
ad5b6942 | 66 | "^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|" |
be58e70d JK |
67 | "implementation|initialization|finalization)[ \t]*.*)$" |
68 | "\n" | |
80c49c3d TR |
69 | "^(.*=[ \t]*(class|record).*)$", |
70 | /* -- */ | |
71 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
72 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
664d44ee | 73 | "|<>|<=|>=|:=|\\.\\."), |
71a5d4bc | 74 | PATTERNS("perl", |
ea2ca449 JN |
75 | "^package .*\n" |
76 | "^sub [[:alnum:]_':]+[ \t]*" | |
77 | "(\\([^)]*\\)[ \t]*)?" /* prototype */ | |
78 | /* | |
79 | * Attributes. A regex can't count nested parentheses, | |
80 | * so just slurp up whatever we see, taking care not | |
81 | * to accept lines like "sub foo; # defined elsewhere". | |
82 | * | |
83 | * An attribute could contain a semicolon, but at that | |
84 | * point it seems reasonable enough to give up. | |
85 | */ | |
86 | "(:[^;#]*)?" | |
87 | "(\\{[ \t]*)?" /* brace can come here or on the next line */ | |
88 | "(#.*)?$\n" /* comment */ | |
f143d9c6 | 89 | "^(BEGIN|END|INIT|CHECK|UNITCHECK|AUTOLOAD|DESTROY)[ \t]*" |
ea2ca449 JN |
90 | "(\\{[ \t]*)?" /* brace can come here or on the next line */ |
91 | "(#.*)?$\n" | |
12f0967a | 92 | "^=head[0-9] .*", /* POD */ |
71a5d4bc JN |
93 | /* -- */ |
94 | "[[:alpha:]_'][[:alnum:]_']*" | |
95 | "|0[xb]?[0-9a-fA-F_]*" | |
96 | /* taking care not to interpret 3..5 as (3.)(.5) */ | |
97 | "|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?" | |
98 | "|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::" | |
99 | "|&&=|\\|\\|=|//=|\\*\\*=" | |
100 | "|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?" | |
101 | "|[-+*/%.^&<>=!|]=" | |
102 | "|=~|!~" | |
664d44ee | 103 | "|<<|<>|<=>|>>"), |
6d2f208c BS |
104 | PATTERNS("php", |
105 | "^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n" | |
106 | "^[\t ]*(class.*)$", | |
80c49c3d TR |
107 | /* -- */ |
108 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
109 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
664d44ee | 110 | "|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->"), |
80c49c3d TR |
111 | PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$", |
112 | /* -- */ | |
113 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
114 | "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 115 | "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"), |
80c49c3d TR |
116 | /* -- */ |
117 | PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$", | |
118 | /* -- */ | |
119 | "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*" | |
120 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?." | |
664d44ee | 121 | "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"), |
80c49c3d TR |
122 | PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", |
123 | "[={}\"]|[^={}\" \t]+"), | |
124 | PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", | |
664d44ee | 125 | "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+"), |
80c49c3d TR |
126 | PATTERNS("cpp", |
127 | /* Jump targets or access declarations */ | |
8a2e8da3 JS |
128 | "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:[[:space:]]*($|/[/*])\n" |
129 | /* functions/methods, variables, and compounds at top level */ | |
130 | "^((::[[:space:]]*)?[A-Za-z_].*)$", | |
80c49c3d TR |
131 | /* -- */ |
132 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
abf8f986 | 133 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lLuU]*" |
407e07f2 | 134 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*"), |
b221207d PO |
135 | PATTERNS("csharp", |
136 | /* Keywords */ | |
137 | "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n" | |
138 | /* Methods and constructors */ | |
139 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[<>@._[:alnum:]]+[ \t]*\\(.*\\))[ \t]*$\n" | |
140 | /* Properties */ | |
141 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[@._[:alnum:]]+)[ \t]*$\n" | |
142 | /* Type definitions */ | |
143 | "^[ \t]*(((static|public|internal|private|protected|new|unsafe|sealed|abstract|partial)[ \t]+)*(class|enum|interface|struct)[ \t]+.*)$\n" | |
144 | /* Namespace */ | |
145 | "^[ \t]*(namespace[ \t]+.*)$", | |
146 | /* -- */ | |
147 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
148 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 149 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
122aa6f9 | 150 | { "default", NULL, -1, { NULL, 0 } }, |
be58e70d | 151 | }; |
80c49c3d | 152 | #undef PATTERNS |
909a5494 | 153 | #undef IPATTERN |
be58e70d JK |
154 | |
155 | static struct userdiff_driver driver_true = { | |
156 | "diff=true", | |
157 | NULL, | |
122aa6f9 | 158 | 0, |
be58e70d JK |
159 | { NULL, 0 } |
160 | }; | |
be58e70d JK |
161 | |
162 | static struct userdiff_driver driver_false = { | |
163 | "!diff", | |
164 | NULL, | |
122aa6f9 | 165 | 1, |
be58e70d JK |
166 | { NULL, 0 } |
167 | }; | |
be58e70d JK |
168 | |
169 | static struct userdiff_driver *userdiff_find_by_namelen(const char *k, int len) | |
170 | { | |
171 | int i; | |
172 | for (i = 0; i < ndrivers; i++) { | |
173 | struct userdiff_driver *drv = drivers + i; | |
174 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
175 | return drv; | |
176 | } | |
177 | for (i = 0; i < ARRAY_SIZE(builtin_drivers); i++) { | |
178 | struct userdiff_driver *drv = builtin_drivers + i; | |
179 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
180 | return drv; | |
181 | } | |
182 | return NULL; | |
183 | } | |
184 | ||
be58e70d JK |
185 | static int parse_funcname(struct userdiff_funcname *f, const char *k, |
186 | const char *v, int cflags) | |
187 | { | |
188 | if (git_config_string(&f->pattern, k, v) < 0) | |
189 | return -1; | |
190 | f->cflags = cflags; | |
6680a087 | 191 | return 0; |
be58e70d JK |
192 | } |
193 | ||
122aa6f9 JK |
194 | static int parse_tristate(int *b, const char *k, const char *v) |
195 | { | |
196 | if (v && !strcasecmp(v, "auto")) | |
197 | *b = -1; | |
198 | else | |
199 | *b = git_config_bool(k, v); | |
6680a087 | 200 | return 0; |
122aa6f9 JK |
201 | } |
202 | ||
d9bae1a1 JK |
203 | static int parse_bool(int *b, const char *k, const char *v) |
204 | { | |
205 | *b = git_config_bool(k, v); | |
6680a087 | 206 | return 0; |
d9bae1a1 JK |
207 | } |
208 | ||
c7534ef4 | 209 | int userdiff_config(const char *k, const char *v) |
be58e70d JK |
210 | { |
211 | struct userdiff_driver *drv; | |
0a5987fe JK |
212 | const char *name, *type; |
213 | int namelen; | |
214 | ||
215 | if (parse_config_key(k, "diff", &name, &namelen, &type) || !name) | |
216 | return 0; | |
217 | ||
218 | drv = userdiff_find_by_namelen(name, namelen); | |
219 | if (!drv) { | |
220 | ALLOC_GROW(drivers, ndrivers+1, drivers_alloc); | |
221 | drv = &drivers[ndrivers++]; | |
222 | memset(drv, 0, sizeof(*drv)); | |
223 | drv->name = xmemdupz(name, namelen); | |
224 | drv->binary = -1; | |
225 | } | |
be58e70d | 226 | |
0a5987fe | 227 | if (!strcmp(type, "funcname")) |
be58e70d | 228 | return parse_funcname(&drv->funcname, k, v, 0); |
0a5987fe | 229 | if (!strcmp(type, "xfuncname")) |
be58e70d | 230 | return parse_funcname(&drv->funcname, k, v, REG_EXTENDED); |
0a5987fe | 231 | if (!strcmp(type, "binary")) |
122aa6f9 | 232 | return parse_tristate(&drv->binary, k, v); |
0a5987fe | 233 | if (!strcmp(type, "command")) |
6680a087 | 234 | return git_config_string(&drv->external, k, v); |
0a5987fe | 235 | if (!strcmp(type, "textconv")) |
6680a087 | 236 | return git_config_string(&drv->textconv, k, v); |
0a5987fe | 237 | if (!strcmp(type, "cachetextconv")) |
d9bae1a1 | 238 | return parse_bool(&drv->textconv_want_cache, k, v); |
0a5987fe | 239 | if (!strcmp(type, "wordregex")) |
6680a087 | 240 | return git_config_string(&drv->word_regex, k, v); |
be58e70d JK |
241 | |
242 | return 0; | |
243 | } | |
244 | ||
245 | struct userdiff_driver *userdiff_find_by_name(const char *name) { | |
246 | int len = strlen(name); | |
247 | return userdiff_find_by_namelen(name, len); | |
248 | } | |
249 | ||
250 | struct userdiff_driver *userdiff_find_by_path(const char *path) | |
251 | { | |
252 | static struct git_attr *attr; | |
253 | struct git_attr_check check; | |
254 | ||
255 | if (!attr) | |
7fb0eaa2 | 256 | attr = git_attr("diff"); |
be58e70d JK |
257 | check.attr = attr; |
258 | ||
259 | if (!path) | |
260 | return NULL; | |
d932f4eb | 261 | if (git_check_attr(path, 1, &check)) |
be58e70d JK |
262 | return NULL; |
263 | ||
264 | if (ATTR_TRUE(check.value)) | |
265 | return &driver_true; | |
266 | if (ATTR_FALSE(check.value)) | |
267 | return &driver_false; | |
268 | if (ATTR_UNSET(check.value)) | |
269 | return NULL; | |
270 | return userdiff_find_by_name(check.value); | |
271 | } | |
3813e690 JK |
272 | |
273 | struct userdiff_driver *userdiff_get_textconv(struct userdiff_driver *driver) | |
274 | { | |
275 | if (!driver->textconv) | |
276 | return NULL; | |
277 | ||
278 | if (driver->textconv_want_cache && !driver->textconv_cache) { | |
279 | struct notes_cache *c = xmalloc(sizeof(*c)); | |
280 | struct strbuf name = STRBUF_INIT; | |
281 | ||
282 | strbuf_addf(&name, "textconv/%s", driver->name); | |
283 | notes_cache_init(c, name.buf, driver->textconv); | |
284 | driver->textconv_cache = c; | |
285 | } | |
286 | ||
287 | return driver; | |
288 | } |