Compile on demand and get data for a predefined regex.
97{
99
100 {
103
104#ifdef HAVE_PCRE2
105#define UNR_PCTENC_SUBDEL "][\\p{L}\\p{N}._~%!$&'()*+,;="
106#else
107#define UNR_PCTENC_SUBDEL "][[:alnum:]._~%!$&'()*+,;="
108#endif
109#define PATH ":@/ "
110 "^([[:alpha:]][-+.[:alnum:]]+):"
111 "("
112 "("
113
114 "(//"
115 "("
118 "@)?"
119 "("
121 "|"
122 "(\\[[[:xdigit:]:.]+\\])"
123 ")"
124 "(:([[:digit:]]+))?"
126 ")"
127 "|"
128 "("
130 ")"
131 ")"
132
133 "(\\?([^#]*))?"
134 ")$"
135#undef PATH
136#undef UNR_PCTENC_SUBDEL
137 },
138 {
141#define QUERY_PART "^&="
143#undef QUERY_PART
144 },
145 {
148 "=\\?"
149 "([^][()<>@,;:\\\"/?. =]+)"
150 "\\?"
151 "([qQbB])"
152 "\\?"
153 "([^?]+)"
154 "\\?="
155 },
156 {
159 "^\\#H ([[:alnum:]_\\.-]+) ([[:alnum:]]{4}( [[:alnum:]]{4}){7})[ \t]*$"
160 },
161 {
164
165#define FWS " *"
166#define C "(\\(.*\\))?"
167#define CFWS FWS C FWS
168 "^"
170 "(([[:alpha:]]+)" CFWS ", *)?"
171 CFWS "([[:digit:]]{1,2}) "
173 CFWS "([[:digit:]]{2,4}) "
174 CFWS "([[:digit:]]{1,2})"
175 ":" CFWS "([[:digit:]]{1,2})"
177 "(:" CFWS "([[:digit:]]{1,2}))?"
179 "("
180 "([+-][[:digit:]]{4})|"
181 "([[:alpha:]]+)"
182 ")?"
183#undef CFWS
184#undef C
185#undef FWS
186 },
187 {
190 "( ([[:digit:]])|([[:digit:]]{2}))"
194 " ([+-][[:digit:]]{4})"
195 },
196 {
199
200 "^From "
201 "([^[:space:]]+) +"
203 " +"
205 " ( ([[:digit:]])|([[:digit:]]{2}))"
206 " +"
208 " +"
210 },
211 {
214
215 "^From "
216 "("
217 "[^[:space:]]+"
218 "( at [^[:space:]]+)?"
219 ")?"
220 " *"
222 " +"
224 " +"
225 "( "
226 "([[:digit:]])|"
227 "([[:digit:]]{2})"
228 ")"
229 " +"
230 "("
232 "|"
233 "([[:digit:]]{2}"
234 ":[[:digit:]]{2})"
235 ")"
236 " +"
237 "("
238 "([[:alpha:] ]+)|"
239 "([+][[:digit:]]{4} )"
240 ")?"
241 "("
243 "|"
244 "([[:digit:]]{2})"
245 ")"
246 },
247 {
250 "^([[:alpha:]]+): (.*)$"
251 },
252
253 };
254
257 assert((
which == h->
which) &&
"Fix 'storage' array");
259 {
260#ifdef HAVE_PCRE2
261 uint32_t opt = pcre2_has_unicode() ? PCRE2_UTF : 0;
262 int eno = 0;
263 PCRE2_SIZE eoff = 0;
264 h->
re = pcre2_compile((PCRE2_SPTR8) h->
str, PCRE2_ZERO_TERMINATED, opt,
265 &eno, &eoff, NULL);
266 assert(h->
re &&
"Fix your RE");
267 h->mdata = pcre2_match_data_create_from_pattern(h->
re, NULL);
268 uint32_t ccount = 0;
269 pcre2_pattern_info(h->
re, PCRE2_INFO_CAPTURECOUNT, &ccount);
270 assert(((ccount + 1) == h->
nmatches) &&
"Number of matches do not match (...)");
272#else
274 const int rc = regcomp(h->
re, h->
str, REG_EXTENDED);
275 assert(rc == 0 && "Fix your RE");
277#endif
278 }
279 return h;
280}
void * mutt_mem_calloc(size_t nmemb, size_t size)
Allocate zeroed memory on the heap.
#define UNR_PCTENC_SUBDEL
@ PREX_MBOX_FROM_LAX_MATCH_MAX
@ PREX_ACCOUNT_CMD_MATCH_MAX
@ PREX_IMAP_DATE_MATCH_MAX
@ PREX_MBOX_FROM_MATCH_MAX
@ PREX_RFC2047_ENCODED_WORD_MATCH_MAX
@ PREX_URL_QUERY_KEY_VAL_MATCH_MAX
@ PREX_GNUTLS_CERT_HOST_HASH
[#H foo.com A76D 954B EB79 1F49 5B3A 0A0E 0681 65B1]
@ PREX_MBOX_FROM_LAX
[From god@heaven.af.mil Sat Jan 3 01:05:34 1996]
@ PREX_URL
[imaps://user:pass@example.com/INBOX?foo=bar]
@ PREX_MBOX_FROM
[From god@heaven.af.mil Sat Jan 3 01:05:34 1996]
@ PREX_ACCOUNT_CMD
key: value
@ PREX_IMAP_DATE
[16-MAR-2020 15:09:35 -0700]
@ PREX_RFC5322_DATE_LAX
[Mon, (Comment) 16 Mar 2020 15:09:35 -0700]
@ PREX_URL_QUERY_KEY_VAL
https://example.com/?[q=foo]
@ PREX_RFC2047_ENCODED_WORD
[=?utf-8?Q?=E8=81=AA=E6=98=8E=E7=9A=84?=]
@ PREX_RFC5322_DATE_LAX_MATCH_MAX
@ PREX_GNUTLS_CERT_HOST_HASH_MATCH_MAX
A predefined / precompiled regex.
const char * str
Regex string.
enum Prex which
Regex type, e.g. PREX_URL.
size_t nmatches
Number of regex matches.
regex_t * re
Compiled regex.
regmatch_t * matches
Resulting matches.