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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 BSSJ |
10 | #define PATTERNS(name, pattern, word_regex) \ |
11 | { name, NULL, -1, { pattern, REG_EXTENDED }, word_regex } | |
909a5494 BC |
12 | #define IPATTERN(name, pattern, word_regex) \ |
13 | { name, NULL, -1, { pattern, REG_EXTENDED | REG_ICASE }, word_regex } | |
be58e70d | 14 | static struct userdiff_driver builtin_drivers[] = { |
909a5494 BC |
15 | IPATTERN("fortran", |
16 | "!^([C*]|[ \t]*!)\n" | |
17 | "!^[ \t]*MODULE[ \t]+PROCEDURE[ \t]\n" | |
18 | "^[ \t]*((END[ \t]+)?(PROGRAM|MODULE|BLOCK[ \t]+DATA" | |
19 | "|([^'\" \t]+[ \t]+)*(SUBROUTINE|FUNCTION))[ \t]+[A-Z].*)$", | |
20 | /* -- */ | |
21 | "[a-zA-Z][a-zA-Z0-9_]*" | |
22 | "|\\.([Ee][Qq]|[Nn][Ee]|[Gg][TtEe]|[Ll][TtEe]|[Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Aa][Nn][Dd]|[Oo][Rr]|[Nn]?[Ee][Qq][Vv]|[Nn][Oo][Tt])\\." | |
23 | /* numbers and format statements like 2E14.4, or ES12.6, 9X. | |
24 | * Don't worry about format statements without leading digits since | |
25 | * they would have been matched above as a variable anyway. */ | |
26 | "|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?" | |
27 | "|//|\\*\\*|::|[/<>=]=" | |
28 | "|[^[:space:]]|[\x80-\xff]+"), | |
80c49c3d TR |
29 | PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$", |
30 | "[^<>= \t]+|[^[:space:]]|[\x80-\xff]+"), | |
31 | PATTERNS("java", | |
be58e70d | 32 | "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" |
959e2e64 PB |
33 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$", |
34 | /* -- */ | |
80c49c3d TR |
35 | "[a-zA-Z_][a-zA-Z0-9_]*" |
36 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
37 | "|[-+*/<>%&^|=!]=" | |
38 | "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|" | |
39 | "|[^[:space:]]|[\x80-\xff]+"), | |
40 | PATTERNS("objc", | |
be58e70d JK |
41 | /* Negate C statements that can look like functions */ |
42 | "!^[ \t]*(do|for|if|else|return|switch|while)\n" | |
43 | /* Objective-C methods */ | |
44 | "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" | |
45 | /* C functions */ | |
959e2e64 | 46 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n" |
be58e70d | 47 | /* Objective-C class/protocol definitions */ |
80c49c3d TR |
48 | "^(@(implementation|interface|protocol)[ \t].*)$", |
49 | /* -- */ | |
50 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
51 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
52 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->" | |
53 | "|[^[:space:]]|[\x80-\xff]+"), | |
54 | PATTERNS("pascal", | |
ad5b6942 | 55 | "^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|" |
be58e70d JK |
56 | "implementation|initialization|finalization)[ \t]*.*)$" |
57 | "\n" | |
80c49c3d TR |
58 | "^(.*=[ \t]*(class|record).*)$", |
59 | /* -- */ | |
60 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
61 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
62 | "|<>|<=|>=|:=|\\.\\." | |
63 | "|[^[:space:]]|[\x80-\xff]+"), | |
71a5d4bc JN |
64 | PATTERNS("perl", |
65 | "^[ \t]*package .*;\n" | |
a25e4737 JH |
66 | "^[ \t]*sub .* \\{\n" |
67 | "^[A-Z]+ \\{\n" /* BEGIN, END, ... */ | |
68 | "^=head[0-9] ", /* POD */ | |
71a5d4bc JN |
69 | /* -- */ |
70 | "[[:alpha:]_'][[:alnum:]_']*" | |
71 | "|0[xb]?[0-9a-fA-F_]*" | |
72 | /* taking care not to interpret 3..5 as (3.)(.5) */ | |
73 | "|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?" | |
74 | "|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::" | |
75 | "|&&=|\\|\\|=|//=|\\*\\*=" | |
76 | "|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?" | |
77 | "|[-+*/%.^&<>=!|]=" | |
78 | "|=~|!~" | |
79 | "|<<|<>|<=>|>>" | |
80 | "|[^[:space:]]"), | |
6d2f208c BS |
81 | PATTERNS("php", |
82 | "^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n" | |
83 | "^[\t ]*(class.*)$", | |
80c49c3d TR |
84 | /* -- */ |
85 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
86 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
87 | "|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->" | |
88 | "|[^[:space:]]|[\x80-\xff]+"), | |
89 | PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$", | |
90 | /* -- */ | |
91 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
92 | "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?" | |
93 | "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?" | |
b34f69f9 | 94 | "|[^[:space:]]|[\x80-\xff]+"), |
80c49c3d TR |
95 | /* -- */ |
96 | PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$", | |
97 | /* -- */ | |
98 | "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*" | |
99 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?." | |
100 | "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~" | |
b34f69f9 | 101 | "|[^[:space:]]|[\x80-\xff]+"), |
80c49c3d TR |
102 | PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", |
103 | "[={}\"]|[^={}\" \t]+"), | |
104 | PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", | |
105 | "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+|[^[:space:]]"), | |
106 | PATTERNS("cpp", | |
107 | /* Jump targets or access declarations */ | |
108 | "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:.*$\n" | |
109 | /* C/++ functions/methods at top level */ | |
110 | "^([A-Za-z_][A-Za-z_0-9]*([ \t]+[A-Za-z_][A-Za-z_0-9]*([ \t]*::[ \t]*[^[:space:]]+)?){1,}[ \t]*\\([^;]*)$\n" | |
111 | /* compound type at top level */ | |
112 | "^((struct|class|enum)[^;]*)$", | |
113 | /* -- */ | |
114 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
115 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
116 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->" | |
117 | "|[^[:space:]]|[\x80-\xff]+"), | |
b221207d PO |
118 | PATTERNS("csharp", |
119 | /* Keywords */ | |
120 | "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n" | |
121 | /* Methods and constructors */ | |
122 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[<>@._[:alnum:]]+[ \t]*\\(.*\\))[ \t]*$\n" | |
123 | /* Properties */ | |
124 | "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[@._[:alnum:]]+)[ \t]*$\n" | |
125 | /* Type definitions */ | |
126 | "^[ \t]*(((static|public|internal|private|protected|new|unsafe|sealed|abstract|partial)[ \t]+)*(class|enum|interface|struct)[ \t]+.*)$\n" | |
127 | /* Namespace */ | |
128 | "^[ \t]*(namespace[ \t]+.*)$", | |
129 | /* -- */ | |
130 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
131 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
132 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->" | |
133 | "|[^[:space:]]|[\x80-\xff]+"), | |
122aa6f9 | 134 | { "default", NULL, -1, { NULL, 0 } }, |
be58e70d | 135 | }; |
80c49c3d | 136 | #undef PATTERNS |
909a5494 | 137 | #undef IPATTERN |
be58e70d JK |
138 | |
139 | static struct userdiff_driver driver_true = { | |
140 | "diff=true", | |
141 | NULL, | |
122aa6f9 | 142 | 0, |
be58e70d JK |
143 | { NULL, 0 } |
144 | }; | |
be58e70d JK |
145 | |
146 | static struct userdiff_driver driver_false = { | |
147 | "!diff", | |
148 | NULL, | |
122aa6f9 | 149 | 1, |
be58e70d JK |
150 | { NULL, 0 } |
151 | }; | |
be58e70d JK |
152 | |
153 | static struct userdiff_driver *userdiff_find_by_namelen(const char *k, int len) | |
154 | { | |
155 | int i; | |
156 | for (i = 0; i < ndrivers; i++) { | |
157 | struct userdiff_driver *drv = drivers + i; | |
158 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
159 | return drv; | |
160 | } | |
161 | for (i = 0; i < ARRAY_SIZE(builtin_drivers); i++) { | |
162 | struct userdiff_driver *drv = builtin_drivers + i; | |
163 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
164 | return drv; | |
165 | } | |
166 | return NULL; | |
167 | } | |
168 | ||
169 | static struct userdiff_driver *parse_driver(const char *var, | |
170 | const char *value, const char *type) | |
171 | { | |
172 | struct userdiff_driver *drv; | |
173 | const char *dot; | |
174 | const char *name; | |
175 | int namelen; | |
176 | ||
177 | if (prefixcmp(var, "diff.")) | |
178 | return NULL; | |
179 | dot = strrchr(var, '.'); | |
180 | if (dot == var + 4) | |
181 | return NULL; | |
182 | if (strcmp(type, dot+1)) | |
183 | return NULL; | |
184 | ||
185 | name = var + 5; | |
186 | namelen = dot - name; | |
187 | drv = userdiff_find_by_namelen(name, namelen); | |
188 | if (!drv) { | |
189 | ALLOC_GROW(drivers, ndrivers+1, drivers_alloc); | |
190 | drv = &drivers[ndrivers++]; | |
191 | memset(drv, 0, sizeof(*drv)); | |
192 | drv->name = xmemdupz(name, namelen); | |
122aa6f9 | 193 | drv->binary = -1; |
be58e70d JK |
194 | } |
195 | return drv; | |
196 | } | |
197 | ||
198 | static int parse_funcname(struct userdiff_funcname *f, const char *k, | |
199 | const char *v, int cflags) | |
200 | { | |
201 | if (git_config_string(&f->pattern, k, v) < 0) | |
202 | return -1; | |
203 | f->cflags = cflags; | |
204 | return 1; | |
205 | } | |
206 | ||
207 | static int parse_string(const char **d, const char *k, const char *v) | |
208 | { | |
209 | if (git_config_string(d, k, v) < 0) | |
210 | return -1; | |
211 | return 1; | |
212 | } | |
213 | ||
122aa6f9 JK |
214 | static int parse_tristate(int *b, const char *k, const char *v) |
215 | { | |
216 | if (v && !strcasecmp(v, "auto")) | |
217 | *b = -1; | |
218 | else | |
219 | *b = git_config_bool(k, v); | |
220 | return 1; | |
221 | } | |
222 | ||
d9bae1a1 JK |
223 | static int parse_bool(int *b, const char *k, const char *v) |
224 | { | |
225 | *b = git_config_bool(k, v); | |
226 | return 1; | |
227 | } | |
228 | ||
c7534ef4 | 229 | int userdiff_config(const char *k, const char *v) |
be58e70d JK |
230 | { |
231 | struct userdiff_driver *drv; | |
232 | ||
233 | if ((drv = parse_driver(k, v, "funcname"))) | |
234 | return parse_funcname(&drv->funcname, k, v, 0); | |
235 | if ((drv = parse_driver(k, v, "xfuncname"))) | |
236 | return parse_funcname(&drv->funcname, k, v, REG_EXTENDED); | |
122aa6f9 JK |
237 | if ((drv = parse_driver(k, v, "binary"))) |
238 | return parse_tristate(&drv->binary, k, v); | |
be58e70d JK |
239 | if ((drv = parse_driver(k, v, "command"))) |
240 | return parse_string(&drv->external, k, v); | |
9cb92c39 JK |
241 | if ((drv = parse_driver(k, v, "textconv"))) |
242 | return parse_string(&drv->textconv, k, v); | |
d9bae1a1 JK |
243 | if ((drv = parse_driver(k, v, "cachetextconv"))) |
244 | return parse_bool(&drv->textconv_want_cache, k, v); | |
80c49c3d TR |
245 | if ((drv = parse_driver(k, v, "wordregex"))) |
246 | return parse_string(&drv->word_regex, k, v); | |
be58e70d JK |
247 | |
248 | return 0; | |
249 | } | |
250 | ||
251 | struct userdiff_driver *userdiff_find_by_name(const char *name) { | |
252 | int len = strlen(name); | |
253 | return userdiff_find_by_namelen(name, len); | |
254 | } | |
255 | ||
256 | struct userdiff_driver *userdiff_find_by_path(const char *path) | |
257 | { | |
258 | static struct git_attr *attr; | |
259 | struct git_attr_check check; | |
260 | ||
261 | if (!attr) | |
7fb0eaa2 | 262 | attr = git_attr("diff"); |
be58e70d JK |
263 | check.attr = attr; |
264 | ||
265 | if (!path) | |
266 | return NULL; | |
267 | if (git_checkattr(path, 1, &check)) | |
268 | return NULL; | |
269 | ||
270 | if (ATTR_TRUE(check.value)) | |
271 | return &driver_true; | |
272 | if (ATTR_FALSE(check.value)) | |
273 | return &driver_false; | |
274 | if (ATTR_UNSET(check.value)) | |
275 | return NULL; | |
276 | return userdiff_find_by_name(check.value); | |
277 | } |