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Commit | Line | Data |
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d9bae1a1 | 1 | #include "cache.h" |
be58e70d | 2 | #include "userdiff.h" |
be58e70d JK |
3 | #include "attr.h" |
4 | ||
5 | static struct userdiff_driver *drivers; | |
6 | static int ndrivers; | |
7 | static int drivers_alloc; | |
8 | ||
ae3b970a | 9 | #define PATTERNS(name, pattern, word_regex) \ |
664d44ee JN |
10 | { name, NULL, -1, { pattern, REG_EXTENDED }, \ |
11 | word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" } | |
909a5494 | 12 | #define IPATTERN(name, pattern, word_regex) \ |
664d44ee JN |
13 | { name, NULL, -1, { pattern, REG_EXTENDED | REG_ICASE }, \ |
14 | word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" } | |
be58e70d | 15 | static struct userdiff_driver builtin_drivers[] = { |
e90d065e | 16 | IPATTERN("ada", |
39a87a29 | 17 | "!^(.*[ \t])?(is[ \t]+new|renames|is[ \t]+separate)([ \t].*)?$\n" |
e90d065e AJ |
18 | "!^[ \t]*with[ \t].*$\n" |
19 | "^[ \t]*((procedure|function)[ \t]+.*)$\n" | |
20 | "^[ \t]*((package|protected|task)[ \t]+.*)$", | |
21 | /* -- */ | |
22 | "[a-zA-Z][a-zA-Z0-9_]*" | |
39a87a29 | 23 | "|[-+]?[0-9][0-9#_.aAbBcCdDeEfF]*([eE][+-]?[0-9_]+)?" |
e90d065e | 24 | "|=>|\\.\\.|\\*\\*|:=|/=|>=|<=|<<|>>|<>"), |
909a5494 BC |
25 | IPATTERN("fortran", |
26 | "!^([C*]|[ \t]*!)\n" | |
27 | "!^[ \t]*MODULE[ \t]+PROCEDURE[ \t]\n" | |
28 | "^[ \t]*((END[ \t]+)?(PROGRAM|MODULE|BLOCK[ \t]+DATA" | |
29 | "|([^'\" \t]+[ \t]+)*(SUBROUTINE|FUNCTION))[ \t]+[A-Z].*)$", | |
30 | /* -- */ | |
31 | "[a-zA-Z][a-zA-Z0-9_]*" | |
32 | "|\\.([Ee][Qq]|[Nn][Ee]|[Gg][TtEe]|[Ll][TtEe]|[Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Aa][Nn][Dd]|[Oo][Rr]|[Nn]?[Ee][Qq][Vv]|[Nn][Oo][Tt])\\." | |
33 | /* numbers and format statements like 2E14.4, or ES12.6, 9X. | |
34 | * Don't worry about format statements without leading digits since | |
35 | * they would have been matched above as a variable anyway. */ | |
36 | "|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?" | |
664d44ee | 37 | "|//|\\*\\*|::|[/<>=]="), |
80c49c3d | 38 | PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$", |
664d44ee | 39 | "[^<>= \t]+"), |
80c49c3d | 40 | PATTERNS("java", |
be58e70d | 41 | "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" |
959e2e64 PB |
42 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$", |
43 | /* -- */ | |
80c49c3d TR |
44 | "[a-zA-Z_][a-zA-Z0-9_]*" |
45 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
46 | "|[-+*/<>%&^|=!]=" | |
664d44ee | 47 | "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"), |
53b10a14 GH |
48 | PATTERNS("matlab", |
49 | "^[[:space:]]*((classdef|function)[[:space:]].*)$|^%%[[:space:]].*$", | |
50 | "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"), | |
80c49c3d | 51 | PATTERNS("objc", |
be58e70d JK |
52 | /* Negate C statements that can look like functions */ |
53 | "!^[ \t]*(do|for|if|else|return|switch|while)\n" | |
54 | /* Objective-C methods */ | |
55 | "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" | |
56 | /* C functions */ | |
959e2e64 | 57 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n" |
be58e70d | 58 | /* Objective-C class/protocol definitions */ |
80c49c3d TR |
59 | "^(@(implementation|interface|protocol)[ \t].*)$", |
60 | /* -- */ | |
61 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
62 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 63 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
80c49c3d | 64 | PATTERNS("pascal", |
ad5b6942 | 65 | "^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|" |
be58e70d JK |
66 | "implementation|initialization|finalization)[ \t]*.*)$" |
67 | "\n" | |
80c49c3d TR |
68 | "^(.*=[ \t]*(class|record).*)$", |
69 | /* -- */ | |
70 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
71 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
664d44ee | 72 | "|<>|<=|>=|:=|\\.\\."), |
71a5d4bc | 73 | PATTERNS("perl", |
ea2ca449 JN |
74 | "^package .*\n" |
75 | "^sub [[:alnum:]_':]+[ \t]*" | |
76 | "(\\([^)]*\\)[ \t]*)?" /* prototype */ | |
77 | /* | |
78 | * Attributes. A regex can't count nested parentheses, | |
79 | * so just slurp up whatever we see, taking care not | |
80 | * to accept lines like "sub foo; # defined elsewhere". | |
81 | * | |
82 | * An attribute could contain a semicolon, but at that | |
83 | * point it seems reasonable enough to give up. | |
84 | */ | |
85 | "(:[^;#]*)?" | |
86 | "(\\{[ \t]*)?" /* brace can come here or on the next line */ | |
87 | "(#.*)?$\n" /* comment */ | |
f143d9c6 | 88 | "^(BEGIN|END|INIT|CHECK|UNITCHECK|AUTOLOAD|DESTROY)[ \t]*" |
ea2ca449 JN |
89 | "(\\{[ \t]*)?" /* brace can come here or on the next line */ |
90 | "(#.*)?$\n" | |
12f0967a | 91 | "^=head[0-9] .*", /* POD */ |
71a5d4bc JN |
92 | /* -- */ |
93 | "[[:alpha:]_'][[:alnum:]_']*" | |
94 | "|0[xb]?[0-9a-fA-F_]*" | |
95 | /* taking care not to interpret 3..5 as (3.)(.5) */ | |
96 | "|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?" | |
97 | "|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::" | |
98 | "|&&=|\\|\\|=|//=|\\*\\*=" | |
99 | "|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?" | |
100 | "|[-+*/%.^&<>=!|]=" | |
101 | "|=~|!~" | |
664d44ee | 102 | "|<<|<>|<=>|>>"), |
6d2f208c BS |
103 | PATTERNS("php", |
104 | "^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n" | |
105 | "^[\t ]*(class.*)$", | |
80c49c3d TR |
106 | /* -- */ |
107 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
108 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
664d44ee | 109 | "|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->"), |
80c49c3d TR |
110 | PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$", |
111 | /* -- */ | |
112 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
113 | "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 114 | "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"), |
80c49c3d TR |
115 | /* -- */ |
116 | PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$", | |
117 | /* -- */ | |
118 | "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*" | |
119 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?." | |
664d44ee | 120 | "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"), |
80c49c3d TR |
121 | PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", |
122 | "[={}\"]|[^={}\" \t]+"), | |
123 | PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", | |
664d44ee | 124 | "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+"), |
80c49c3d TR |
125 | PATTERNS("cpp", |
126 | /* Jump targets or access declarations */ | |
8a2e8da3 JS |
127 | "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:[[:space:]]*($|/[/*])\n" |
128 | /* functions/methods, variables, and compounds at top level */ | |
129 | "^((::[[:space:]]*)?[A-Za-z_].*)$", | |
80c49c3d TR |
130 | /* -- */ |
131 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
abf8f986 | 132 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lLuU]*" |
407e07f2 | 133 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*"), |
b221207d PO |
134 | PATTERNS("csharp", |
135 | /* Keywords */ | |
136 | "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n" | |
137 | /* Methods and constructors */ | |
138 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[<>@._[:alnum:]]+[ \t]*\\(.*\\))[ \t]*$\n" | |
139 | /* Properties */ | |
140 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[@._[:alnum:]]+)[ \t]*$\n" | |
141 | /* Type definitions */ | |
142 | "^[ \t]*(((static|public|internal|private|protected|new|unsafe|sealed|abstract|partial)[ \t]+)*(class|enum|interface|struct)[ \t]+.*)$\n" | |
143 | /* Namespace */ | |
144 | "^[ \t]*(namespace[ \t]+.*)$", | |
145 | /* -- */ | |
146 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
147 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
664d44ee | 148 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
122aa6f9 | 149 | { "default", NULL, -1, { NULL, 0 } }, |
be58e70d | 150 | }; |
80c49c3d | 151 | #undef PATTERNS |
909a5494 | 152 | #undef IPATTERN |
be58e70d JK |
153 | |
154 | static struct userdiff_driver driver_true = { | |
155 | "diff=true", | |
156 | NULL, | |
122aa6f9 | 157 | 0, |
be58e70d JK |
158 | { NULL, 0 } |
159 | }; | |
be58e70d JK |
160 | |
161 | static struct userdiff_driver driver_false = { | |
162 | "!diff", | |
163 | NULL, | |
122aa6f9 | 164 | 1, |
be58e70d JK |
165 | { NULL, 0 } |
166 | }; | |
be58e70d JK |
167 | |
168 | static struct userdiff_driver *userdiff_find_by_namelen(const char *k, int len) | |
169 | { | |
170 | int i; | |
171 | for (i = 0; i < ndrivers; i++) { | |
172 | struct userdiff_driver *drv = drivers + i; | |
173 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
174 | return drv; | |
175 | } | |
176 | for (i = 0; i < ARRAY_SIZE(builtin_drivers); i++) { | |
177 | struct userdiff_driver *drv = builtin_drivers + i; | |
178 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
179 | return drv; | |
180 | } | |
181 | return NULL; | |
182 | } | |
183 | ||
be58e70d JK |
184 | static int parse_funcname(struct userdiff_funcname *f, const char *k, |
185 | const char *v, int cflags) | |
186 | { | |
187 | if (git_config_string(&f->pattern, k, v) < 0) | |
188 | return -1; | |
189 | f->cflags = cflags; | |
6680a087 | 190 | return 0; |
be58e70d JK |
191 | } |
192 | ||
122aa6f9 JK |
193 | static int parse_tristate(int *b, const char *k, const char *v) |
194 | { | |
195 | if (v && !strcasecmp(v, "auto")) | |
196 | *b = -1; | |
197 | else | |
198 | *b = git_config_bool(k, v); | |
6680a087 | 199 | return 0; |
122aa6f9 JK |
200 | } |
201 | ||
d9bae1a1 JK |
202 | static int parse_bool(int *b, const char *k, const char *v) |
203 | { | |
204 | *b = git_config_bool(k, v); | |
6680a087 | 205 | return 0; |
d9bae1a1 JK |
206 | } |
207 | ||
c7534ef4 | 208 | int userdiff_config(const char *k, const char *v) |
be58e70d JK |
209 | { |
210 | struct userdiff_driver *drv; | |
0a5987fe JK |
211 | const char *name, *type; |
212 | int namelen; | |
213 | ||
214 | if (parse_config_key(k, "diff", &name, &namelen, &type) || !name) | |
215 | return 0; | |
216 | ||
217 | drv = userdiff_find_by_namelen(name, namelen); | |
218 | if (!drv) { | |
219 | ALLOC_GROW(drivers, ndrivers+1, drivers_alloc); | |
220 | drv = &drivers[ndrivers++]; | |
221 | memset(drv, 0, sizeof(*drv)); | |
222 | drv->name = xmemdupz(name, namelen); | |
223 | drv->binary = -1; | |
224 | } | |
be58e70d | 225 | |
0a5987fe | 226 | if (!strcmp(type, "funcname")) |
be58e70d | 227 | return parse_funcname(&drv->funcname, k, v, 0); |
0a5987fe | 228 | if (!strcmp(type, "xfuncname")) |
be58e70d | 229 | return parse_funcname(&drv->funcname, k, v, REG_EXTENDED); |
0a5987fe | 230 | if (!strcmp(type, "binary")) |
122aa6f9 | 231 | return parse_tristate(&drv->binary, k, v); |
0a5987fe | 232 | if (!strcmp(type, "command")) |
6680a087 | 233 | return git_config_string(&drv->external, k, v); |
0a5987fe | 234 | if (!strcmp(type, "textconv")) |
6680a087 | 235 | return git_config_string(&drv->textconv, k, v); |
0a5987fe | 236 | if (!strcmp(type, "cachetextconv")) |
d9bae1a1 | 237 | return parse_bool(&drv->textconv_want_cache, k, v); |
0a5987fe | 238 | if (!strcmp(type, "wordregex")) |
6680a087 | 239 | return git_config_string(&drv->word_regex, k, v); |
be58e70d JK |
240 | |
241 | return 0; | |
242 | } | |
243 | ||
244 | struct userdiff_driver *userdiff_find_by_name(const char *name) { | |
245 | int len = strlen(name); | |
246 | return userdiff_find_by_namelen(name, len); | |
247 | } | |
248 | ||
249 | struct userdiff_driver *userdiff_find_by_path(const char *path) | |
250 | { | |
251 | static struct git_attr *attr; | |
252 | struct git_attr_check check; | |
253 | ||
254 | if (!attr) | |
7fb0eaa2 | 255 | attr = git_attr("diff"); |
be58e70d JK |
256 | check.attr = attr; |
257 | ||
258 | if (!path) | |
259 | return NULL; | |
d932f4eb | 260 | if (git_check_attr(path, 1, &check)) |
be58e70d JK |
261 | return NULL; |
262 | ||
263 | if (ATTR_TRUE(check.value)) | |
264 | return &driver_true; | |
265 | if (ATTR_FALSE(check.value)) | |
266 | return &driver_false; | |
267 | if (ATTR_UNSET(check.value)) | |
268 | return NULL; | |
269 | return userdiff_find_by_name(check.value); | |
270 | } | |
3813e690 JK |
271 | |
272 | struct userdiff_driver *userdiff_get_textconv(struct userdiff_driver *driver) | |
273 | { | |
274 | if (!driver->textconv) | |
275 | return NULL; | |
276 | ||
277 | if (driver->textconv_want_cache && !driver->textconv_cache) { | |
278 | struct notes_cache *c = xmalloc(sizeof(*c)); | |
279 | struct strbuf name = STRBUF_INIT; | |
280 | ||
281 | strbuf_addf(&name, "textconv/%s", driver->name); | |
282 | notes_cache_init(c, name.buf, driver->textconv); | |
283 | driver->textconv_cache = c; | |
284 | } | |
285 | ||
286 | return driver; | |
287 | } |