38#define PCRE2_CODE_UNIT_WIDTH 8
46static bool pcre2_has_unicode(
void)
48 static uint32_t checked = -1;
51 pcre2_config(PCRE2_CONFIG_UNICODE, &checked);
74 pcre2_match_data *mdata;
81#define PREX_MONTH "(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)"
82#define PREX_DOW "(Mon|Tue|Wed|Thu|Fri|Sat|Sun)"
83#define PREX_DOW_NOCASE \
84 "([Mm][Oo][Nn]|[Tt][Uu][Ee]|[Ww][Ee][Dd]|[Tt][Hh][Uu]|[Ff][Rr][Ii]|[Ss][Aa][Tt]|[Ss][Uu][Nn])"
85#define PREX_TIME "([[:digit:]]{2}:[[:digit:]]{2}:[[:digit:]]{2})"
86#define PREX_YEAR "([[:digit:]]{4})"
105#define UNR_PCTENC_SUBDEL "][\\p{L}\\p{N}._~%!$&'()*+,;="
107#define UNR_PCTENC_SUBDEL "][[:alnum:]._~%!$&'()*+,;="
110 "^([[:alpha:]][-+.[:alnum:]]+):"
122 "(\\[[[:xdigit:]:.]+\\])"
136#undef UNR_PCTENC_SUBDEL
141#define QUERY_PART "^&="
149 "([^][()<>@,;:\\\"/?. =]+)"
159 "^\\#H ([[:alnum:]_\\.-]+) ([[:alnum:]]{4}( [[:alnum:]]{4}){7})[ \t]*$"
166#define C "(\\(.*\\))?"
167#define CFWS FWS C FWS
170 "(([[:alpha:]]+)" CFWS ", *)?"
171 CFWS "([[:digit:]]{1,2}) "
173 CFWS "([[:digit:]]{2,4}) "
174 CFWS "([[:digit:]]{1,2})"
175 ":" CFWS "([[:digit:]]{1,2})"
177 "(:" CFWS "([[:digit:]]{1,2}))?"
180 "([+-][[:digit:]]{4})|"
190 "( ([[:digit:]])|([[:digit:]]{2}))"
194 " ([+-][[:digit:]]{4})"
205 " ( ([[:digit:]])|([[:digit:]]{2}))"
218 "( at [^[:space:]]+)?"
239 "([+][[:digit:]]{4} )"
250 "^([[:alpha:]]+): (.*)$"
257 assert((
which == h->
which) &&
"Fix 'storage' array");
261 uint32_t opt = pcre2_has_unicode() ? PCRE2_UTF : 0;
264 h->
re = pcre2_compile((PCRE2_SPTR8) h->
str, PCRE2_ZERO_TERMINATED, opt,
266 assert(h->
re &&
"Fix your RE");
267 h->mdata = pcre2_match_data_create_from_pattern(h->
re, NULL);
269 pcre2_pattern_info(h->
re, PCRE2_INFO_CAPTURECOUNT, &ccount);
270 assert(((ccount + 1) == h->
nmatches) &&
"Number of matches do not match (...)");
274 const int rc = regcomp(h->
re, h->
str, REG_EXTENDED);
275 assert(rc == 0 &&
"Fix your RE");
296 size_t len = strlen(
str);
297 int rc = pcre2_match(h->
re, (PCRE2_SPTR8)
str, len, 0, 0, h->mdata, NULL);
300 PCRE2_UCHAR errmsg[1024];
301 pcre2_get_error_message(rc, errmsg,
sizeof(errmsg));
305 PCRE2_SIZE *ovector = pcre2_get_ovector_pointer(h->mdata);
309 h->
matches[i].rm_so = ovector[i * 2];
310 h->
matches[i].rm_eo = ovector[i * 2 + 1];
321 assert((h->
re->re_nsub == (h->
nmatches - 1)) &&
322 "Regular expression and matches enum are out of sync");
336 pcre2_match_data_free(h->mdata);
337 pcre2_code_free(h->
re);
#define mutt_debug(LEVEL,...)
@ LL_DEBUG2
Log at debug level 2.
void * mutt_mem_calloc(size_t nmemb, size_t size)
Allocate zeroed memory on the heap.
Memory management wrappers.
regmatch_t * mutt_prex_capture(enum Prex which, const char *str)
Match a precompiled regex against a string.
static struct PrexStorage * prex(enum Prex which)
Compile on demand and get data for a predefined regex.
void mutt_prex_free(void)
Cleanup heap memory allocated by compiled regexes.
#define UNR_PCTENC_SUBDEL
Manage precompiled / predefined regular expressions.
@ 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
Predefined list of regular expressions.
@ 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.