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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 } | |
be58e70d | 12 | static struct userdiff_driver builtin_drivers[] = { |
80c49c3d TR |
13 | PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$", |
14 | "[^<>= \t]+|[^[:space:]]|[\x80-\xff]+"), | |
15 | PATTERNS("java", | |
be58e70d | 16 | "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" |
959e2e64 PB |
17 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$", |
18 | /* -- */ | |
80c49c3d TR |
19 | "[a-zA-Z_][a-zA-Z0-9_]*" |
20 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
21 | "|[-+*/<>%&^|=!]=" | |
22 | "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|" | |
23 | "|[^[:space:]]|[\x80-\xff]+"), | |
24 | PATTERNS("objc", | |
be58e70d JK |
25 | /* Negate C statements that can look like functions */ |
26 | "!^[ \t]*(do|for|if|else|return|switch|while)\n" | |
27 | /* Objective-C methods */ | |
28 | "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" | |
29 | /* C functions */ | |
959e2e64 | 30 | "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n" |
be58e70d | 31 | /* Objective-C class/protocol definitions */ |
80c49c3d TR |
32 | "^(@(implementation|interface|protocol)[ \t].*)$", |
33 | /* -- */ | |
34 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
35 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
36 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->" | |
37 | "|[^[:space:]]|[\x80-\xff]+"), | |
38 | PATTERNS("pascal", | |
be58e70d JK |
39 | "^((procedure|function|constructor|destructor|interface|" |
40 | "implementation|initialization|finalization)[ \t]*.*)$" | |
41 | "\n" | |
80c49c3d TR |
42 | "^(.*=[ \t]*(class|record).*)$", |
43 | /* -- */ | |
44 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
45 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
46 | "|<>|<=|>=|:=|\\.\\." | |
47 | "|[^[:space:]]|[\x80-\xff]+"), | |
6d2f208c BS |
48 | PATTERNS("php", |
49 | "^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n" | |
50 | "^[\t ]*(class.*)$", | |
80c49c3d TR |
51 | /* -- */ |
52 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
53 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" | |
54 | "|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->" | |
55 | "|[^[:space:]]|[\x80-\xff]+"), | |
56 | PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$", | |
57 | /* -- */ | |
58 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
59 | "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?" | |
60 | "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?" | |
61 | "|[^[:space:]|[\x80-\xff]+"), | |
62 | /* -- */ | |
63 | PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$", | |
64 | /* -- */ | |
65 | "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*" | |
66 | "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?." | |
67 | "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~" | |
68 | "|[^[:space:]|[\x80-\xff]+"), | |
69 | PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", | |
70 | "[={}\"]|[^={}\" \t]+"), | |
71 | PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", | |
72 | "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+|[^[:space:]]"), | |
73 | PATTERNS("cpp", | |
74 | /* Jump targets or access declarations */ | |
75 | "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:.*$\n" | |
76 | /* C/++ functions/methods at top level */ | |
77 | "^([A-Za-z_][A-Za-z_0-9]*([ \t]+[A-Za-z_][A-Za-z_0-9]*([ \t]*::[ \t]*[^[:space:]]+)?){1,}[ \t]*\\([^;]*)$\n" | |
78 | /* compound type at top level */ | |
79 | "^((struct|class|enum)[^;]*)$", | |
80 | /* -- */ | |
81 | "[a-zA-Z_][a-zA-Z0-9_]*" | |
82 | "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" | |
83 | "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->" | |
84 | "|[^[:space:]]|[\x80-\xff]+"), | |
122aa6f9 | 85 | { "default", NULL, -1, { NULL, 0 } }, |
be58e70d | 86 | }; |
80c49c3d | 87 | #undef PATTERNS |
be58e70d JK |
88 | |
89 | static struct userdiff_driver driver_true = { | |
90 | "diff=true", | |
91 | NULL, | |
122aa6f9 | 92 | 0, |
be58e70d JK |
93 | { NULL, 0 } |
94 | }; | |
be58e70d JK |
95 | |
96 | static struct userdiff_driver driver_false = { | |
97 | "!diff", | |
98 | NULL, | |
122aa6f9 | 99 | 1, |
be58e70d JK |
100 | { NULL, 0 } |
101 | }; | |
be58e70d JK |
102 | |
103 | static struct userdiff_driver *userdiff_find_by_namelen(const char *k, int len) | |
104 | { | |
105 | int i; | |
106 | for (i = 0; i < ndrivers; i++) { | |
107 | struct userdiff_driver *drv = drivers + i; | |
108 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
109 | return drv; | |
110 | } | |
111 | for (i = 0; i < ARRAY_SIZE(builtin_drivers); i++) { | |
112 | struct userdiff_driver *drv = builtin_drivers + i; | |
113 | if (!strncmp(drv->name, k, len) && !drv->name[len]) | |
114 | return drv; | |
115 | } | |
116 | return NULL; | |
117 | } | |
118 | ||
119 | static struct userdiff_driver *parse_driver(const char *var, | |
120 | const char *value, const char *type) | |
121 | { | |
122 | struct userdiff_driver *drv; | |
123 | const char *dot; | |
124 | const char *name; | |
125 | int namelen; | |
126 | ||
127 | if (prefixcmp(var, "diff.")) | |
128 | return NULL; | |
129 | dot = strrchr(var, '.'); | |
130 | if (dot == var + 4) | |
131 | return NULL; | |
132 | if (strcmp(type, dot+1)) | |
133 | return NULL; | |
134 | ||
135 | name = var + 5; | |
136 | namelen = dot - name; | |
137 | drv = userdiff_find_by_namelen(name, namelen); | |
138 | if (!drv) { | |
139 | ALLOC_GROW(drivers, ndrivers+1, drivers_alloc); | |
140 | drv = &drivers[ndrivers++]; | |
141 | memset(drv, 0, sizeof(*drv)); | |
142 | drv->name = xmemdupz(name, namelen); | |
122aa6f9 | 143 | drv->binary = -1; |
be58e70d JK |
144 | } |
145 | return drv; | |
146 | } | |
147 | ||
148 | static int parse_funcname(struct userdiff_funcname *f, const char *k, | |
149 | const char *v, int cflags) | |
150 | { | |
151 | if (git_config_string(&f->pattern, k, v) < 0) | |
152 | return -1; | |
153 | f->cflags = cflags; | |
154 | return 1; | |
155 | } | |
156 | ||
157 | static int parse_string(const char **d, const char *k, const char *v) | |
158 | { | |
159 | if (git_config_string(d, k, v) < 0) | |
160 | return -1; | |
161 | return 1; | |
162 | } | |
163 | ||
122aa6f9 JK |
164 | static int parse_tristate(int *b, const char *k, const char *v) |
165 | { | |
166 | if (v && !strcasecmp(v, "auto")) | |
167 | *b = -1; | |
168 | else | |
169 | *b = git_config_bool(k, v); | |
170 | return 1; | |
171 | } | |
172 | ||
d9bae1a1 JK |
173 | static int parse_bool(int *b, const char *k, const char *v) |
174 | { | |
175 | *b = git_config_bool(k, v); | |
176 | return 1; | |
177 | } | |
178 | ||
c7534ef4 | 179 | int userdiff_config(const char *k, const char *v) |
be58e70d JK |
180 | { |
181 | struct userdiff_driver *drv; | |
182 | ||
183 | if ((drv = parse_driver(k, v, "funcname"))) | |
184 | return parse_funcname(&drv->funcname, k, v, 0); | |
185 | if ((drv = parse_driver(k, v, "xfuncname"))) | |
186 | return parse_funcname(&drv->funcname, k, v, REG_EXTENDED); | |
122aa6f9 JK |
187 | if ((drv = parse_driver(k, v, "binary"))) |
188 | return parse_tristate(&drv->binary, k, v); | |
be58e70d JK |
189 | if ((drv = parse_driver(k, v, "command"))) |
190 | return parse_string(&drv->external, k, v); | |
9cb92c39 JK |
191 | if ((drv = parse_driver(k, v, "textconv"))) |
192 | return parse_string(&drv->textconv, k, v); | |
d9bae1a1 JK |
193 | if ((drv = parse_driver(k, v, "cachetextconv"))) |
194 | return parse_bool(&drv->textconv_want_cache, k, v); | |
80c49c3d TR |
195 | if ((drv = parse_driver(k, v, "wordregex"))) |
196 | return parse_string(&drv->word_regex, k, v); | |
be58e70d JK |
197 | |
198 | return 0; | |
199 | } | |
200 | ||
201 | struct userdiff_driver *userdiff_find_by_name(const char *name) { | |
202 | int len = strlen(name); | |
203 | return userdiff_find_by_namelen(name, len); | |
204 | } | |
205 | ||
206 | struct userdiff_driver *userdiff_find_by_path(const char *path) | |
207 | { | |
208 | static struct git_attr *attr; | |
209 | struct git_attr_check check; | |
210 | ||
211 | if (!attr) | |
7fb0eaa2 | 212 | attr = git_attr("diff"); |
be58e70d JK |
213 | check.attr = attr; |
214 | ||
215 | if (!path) | |
216 | return NULL; | |
217 | if (git_checkattr(path, 1, &check)) | |
218 | return NULL; | |
219 | ||
220 | if (ATTR_TRUE(check.value)) | |
221 | return &driver_true; | |
222 | if (ATTR_FALSE(check.value)) | |
223 | return &driver_false; | |
224 | if (ATTR_UNSET(check.value)) | |
225 | return NULL; | |
226 | return userdiff_find_by_name(check.value); | |
227 | } |