Merge pull request #700 from orium/url-chan-prefix
Server aware nickname and channel matching
This commit is contained in:
commit
ce40e5a111
216
src/common/url.c
216
src/common/url.c
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@ -32,15 +32,22 @@
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void *url_tree = NULL;
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GTree *url_btree = NULL;
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static int do_an_re (const char *word, int *start, int *end, int *type);
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static GRegex *re_url (void);
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static GRegex *re_host (void);
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static GRegex *re_host6 (void);
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static GRegex *re_email (void);
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static GRegex *re_nick (void);
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static GRegex *re_channel (void);
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static GRegex *re_path (void);
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static gboolean regex_match (const GRegex *re, const char *word,
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int *start, int *end);
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static const GRegex *re_url (void);
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static const GRegex *re_host (void);
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static const GRegex *re_host6 (void);
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static const GRegex *re_email (void);
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static const GRegex *re_nick (void);
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static const GRegex *re_channel (void);
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static const GRegex *re_path (void);
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static gboolean match_nick (const char *word, int *start, int *end);
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static gboolean match_channel (const char *word, int *start, int *end);
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static gboolean match_email (const char *word, int *start, int *end);
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static gboolean match_url (const char *word, int *start, int *end);
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static gboolean match_host (const char *word, int *start, int *end);
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static gboolean match_host6 (const char *word, int *start, int *end);
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static gboolean match_path (const char *word, int *start, int *end);
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static int
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url_free (char *url, void *data)
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@ -189,50 +196,111 @@ static int laststart = 0;
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static int lastend = 0;
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static int lasttype = 0;
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static int
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strchrs (char c, char *s)
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{
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while (*s)
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if (c == *s++)
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return TRUE;
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return FALSE;
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}
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#define NICKPRE "~+!@%&"
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#define CHANPRE "#&!+"
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#define NICKPRE "~+!@%%&"
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int
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url_check_word (const char *word)
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{
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struct {
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gboolean (*match) (const char *word, int *start, int *end);
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int type;
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} m[] = {
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{ match_url, WORD_URL },
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{ match_email, WORD_EMAIL },
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{ match_nick, WORD_NICK },
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{ match_channel, WORD_CHANNEL },
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{ match_host6, WORD_HOST6 },
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{ match_host, WORD_HOST },
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{ match_path, WORD_PATH },
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{ NULL, 0}
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};
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int i;
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laststart = lastend = lasttype = 0;
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if (do_an_re (word, &laststart, &lastend, &lasttype))
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{
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switch (lasttype)
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for (i = 0; m[i].match; i++)
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if (m[i].match (word, &laststart, &lastend))
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{
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lasttype = m[i].type;
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return lasttype;
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}
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return 0;
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}
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static gboolean
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match_nick (const char *word, int *start, int *end)
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{
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const server *serv = current_sess->server;
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const char *nick_prefixes = serv ? serv->nick_prefixes : NICKPRE;
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char *str;
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case WORD_NICK:
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if (strchrs (word[laststart], NICKPRE))
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laststart++;
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str = g_strndup (&word[laststart], lastend - laststart);
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if (!regex_match (re_nick (), word, start, end))
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return FALSE;
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/* ignore matches with prefixes that the server doesn't use */
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if (strchr (NICKPRE, word[*start])
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&& !strchr (nick_prefixes, word[*start]))
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return FALSE;
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/* nick prefix is not part of the matched word */
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if (strchr (nick_prefixes, word[*start]))
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(*start)++;
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str = g_strndup (&word[*start], *end - *start);
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if (!userlist_find (current_sess, str))
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lasttype = 0;
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{
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g_free (str);
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return lasttype;
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case WORD_EMAIL:
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if (!isalnum (word[laststart]))
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laststart++;
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/* Fall through */
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case WORD_URL:
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case WORD_HOST:
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case WORD_HOST6:
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case WORD_CHANNEL:
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case WORD_PATH:
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return lasttype;
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default:
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return 0; /* Should not occur */
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return FALSE;
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}
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}
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else
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return 0;
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g_free (str);
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return TRUE;
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}
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static gboolean
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match_channel (const char *word, int *start, int *end)
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{
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const server *serv = current_sess->server;
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const char *chan_prefixes = serv ? serv->chantypes : CHANPRE;
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if (!regex_match (re_channel (), word, start, end))
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return FALSE;
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return strchr (chan_prefixes, word[*start]) != NULL;
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}
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static gboolean
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match_email (const char *word, int *start, int *end)
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{
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return regex_match (re_email (), word, start, end);
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}
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static gboolean
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match_url (const char *word, int *start, int *end)
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{
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return regex_match (re_url (), word, start, end);
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}
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static gboolean
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match_host (const char *word, int *start, int *end)
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{
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return regex_match (re_host (), word, start, end);
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}
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static gboolean
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match_host6 (const char *word, int *start, int *end)
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{
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return regex_match (re_host6 (), word, start, end);
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}
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static gboolean
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match_path (const char *word, int *start, int *end)
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{
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return regex_match (re_path (), word, start, end);
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}
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/* List of IRC commands for which contents (and thus possible URLs)
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@ -307,46 +375,28 @@ url_last (int *lstart, int *lend)
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return lasttype;
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}
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static int
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do_an_re(const char *word, int *start, int *end, int *type)
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static gboolean
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regex_match (const GRegex *re, const char *word, int *start, int *end)
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{
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typedef struct func_s {
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GRegex *(*fn)(void);
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int type;
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} func_t;
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func_t funcs[] =
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{
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{ re_url, WORD_URL },
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{ re_email, WORD_EMAIL },
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{ re_channel, WORD_CHANNEL },
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{ re_host6, WORD_HOST6 },
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{ re_host, WORD_HOST },
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{ re_path, WORD_PATH },
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{ re_nick, WORD_NICK }
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};
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GMatchInfo *gmi;
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int k;
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for (k = 0; k < sizeof funcs / sizeof (func_t); k++)
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{
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g_regex_match (funcs[k].fn(), word, 0, &gmi);
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g_regex_match (re, word, 0, &gmi);
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if (!g_match_info_matches (gmi))
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{
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g_match_info_free (gmi);
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continue;
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return FALSE;
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}
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while (g_match_info_matches (gmi))
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{
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g_match_info_fetch_pos (gmi, 0, start, end);
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g_match_info_next (gmi, NULL);
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}
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g_match_info_free (gmi);
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*type = funcs[k].type;
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return TRUE;
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}
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return FALSE;
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g_match_info_free (gmi);
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return TRUE;
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}
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/* Miscellaneous description --- */
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@ -376,7 +426,7 @@ make_re (char *grist)
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/* HOST description --- */
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/* (see miscellaneous above) */
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static GRegex *
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static const GRegex *
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re_host (void)
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{
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static GRegex *host_ret;
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@ -384,7 +434,7 @@ re_host (void)
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if (host_ret) return host_ret;
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grist = g_strdup_printf (
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grist = g_strdup (
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"("
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"(" HOST_URL PORT ")|(" HOST ")"
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")"
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@ -393,7 +443,7 @@ re_host (void)
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return host_ret;
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}
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static GRegex *
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static const GRegex *
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re_host6 (void)
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{
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static GRegex *host6_ret;
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@ -401,7 +451,7 @@ re_host6 (void)
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if (host6_ret) return host6_ret;
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grist = g_strdup_printf (
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grist = g_strdup (
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"("
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"(" IPV6ADDR ")|(" "\\[" IPV6ADDR "\\]" PORT ")"
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")"
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{ NULL, "", 0}
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};
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static GRegex *
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static const GRegex *
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re_url (void)
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{
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static GRegex *url_ret = NULL;
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@ -546,7 +596,7 @@ re_url (void)
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/* EMAIL description --- */
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#define EMAIL "[a-z][-_a-z0-9]+@" "(" HOST_URL ")"
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static GRegex *
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static const GRegex *
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re_email (void)
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{
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static GRegex *email_ret;
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@ -554,7 +604,7 @@ re_email (void)
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if (email_ret) return email_ret;
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grist = g_strdup_printf (
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grist = g_strdup (
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"("
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EMAIL
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")"
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@ -582,7 +632,7 @@ re_email (void)
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#define NICK1 "[" NICKHYP NICKLET NICKDIG NICKSPE "]*"
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#define NICK NICK0 NICK1
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static GRegex *
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static const GRegex *
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re_nick (void)
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{
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static GRegex *nick_ret;
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@ -590,7 +640,7 @@ re_nick (void)
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if (nick_ret) return nick_ret;
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grist = g_strdup_printf (
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grist = g_strdup (
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"("
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NICK
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")"
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@ -600,9 +650,9 @@ re_nick (void)
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}
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/* CHANNEL description --- */
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#define CHANNEL "#[^ \t\a,:]+"
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#define CHANNEL "[" CHANPRE "][^ \t\a,:]+"
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static GRegex *
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static const GRegex *
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re_channel (void)
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{
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static GRegex *channel_ret;
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@ -610,7 +660,7 @@ re_channel (void)
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if (channel_ret) return channel_ret;
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grist = g_strdup_printf (
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grist = g_strdup (
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"("
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CHANNEL
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")"
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@ -628,7 +678,7 @@ re_channel (void)
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#define FS_PATH "^(/|\\./|\\.\\./).*"
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#endif
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static GRegex *
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static const GRegex *
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re_path (void)
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{
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static GRegex *path_ret;
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@ -636,7 +686,7 @@ re_path (void)
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if (path_ret) return path_ret;
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grist = g_strdup_printf (
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grist = g_strdup (
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"("
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FS_PATH
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")"
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