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int
regcomp(
regex_t *
preg,
const
char
*
regex,
int
cflags)
;
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Ò»µ©ÓÃregcomp(
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int
regexec(
const
regex_t *
preg,
const
char
*
string
,
size_t
nmatch,
regmatch_t pmatch[
]
,
int
eflags)
;
typedef
struct
{
   regoff_t rm_so;
   regoff_t rm_eo;
}
regmatch_t;
²ÎÊýpregÖ¸Ïò±àÒëºóµÄÕýÔò±í´ïʽ£¬²ÎÊýstringÊǽ«Òª½øÐÐÆ¥ÅäµÄ×Ö·û´®£¬¶ø²ÎÊýnmatchºÍpmatchÔòÓÃÓÚ°ÑÆ¥Åä½á¹û·µ»Ø¸øµ÷ÓóÌÐò£¬×îºóÒ»¸ö²ÎÊýeflags¾ö¶¨ÁËÆ¥ÅäµÄϸ½Ú¡£
ÔÚµ÷Óú¯Êýregexec(
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½øÐÐģʽƥÅäµÄ¹ý³ÌÖУ¬¿ÉÄÜÔÚ×Ö·û´®stringÖлáÓжദÓë¸ø¶¨µÄÕýÔò±í´ïʽÏàÆ¥Å䣬²ÎÊýpmatch¾ÍÊÇÓÃÀ´±£´æÕâЩƥÅäλÖõ쬶ø²ÎÊýnmatchÔò¸æËߺ¯Êýregexec(
)
×î¶à¿ÉÒ԰ѶàÉÙ¸öÆ¥Åä½á¹ûÌî³äµ½pmatchÊý×éÖС£µ±regexec(
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º¯Êý³É¹¦·µ»ØÊ±£¬´Ó string
+
pmatch[
0]
.
rm_soµ½string+
pmatch[
0]
.
rm_eoÊǵÚÒ»¸öÆ¥ÅäµÄ×Ö·û´®£¬¶ø´Ó string
+
pmatch[
1]
.
rm_soµ½string+
pmatch[
1]
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rm_eo£¬ÔòÊǵڶþ¸öÆ¥ÅäµÄ×Ö·û´®£¬ÒÀ´ËÀàÍÆ¡£
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void
regfree(
regex_t *
preg)
;
º¯Êýregfree(
)
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