#include <stdio.h>#include <string.h>#include <sys/types.h>#include <regex.h>int main(int argc, char** argv)
{
char * pattern, *mstr; int x, z, lno = 0, cflags = REG_EXTENDED; char ebuf[128], lbuf[256], format[32]; regex_t reg; regmatch_t pm[10]; const size_t nmatch = 10; pattern = argv[1]; z = regcomp(®, pattern, cflags); if (z != 0)
{ regerror(z, ®, ebuf, sizeof(ebuf)); fprintf(stderr, "%s: pattern '%s' \n",ebuf, pattern); regfree(®); return 1;
} while(fgets(lbuf, sizeof(lbuf), stdin)) { ++lno; if ((z = strlen(lbuf)) > 0 && lbuf[z-1]== '\n') lbuf[z - 1] = 0; z = regexec(®, lbuf, nmatch, pm, 0); if (z == REG_NOMATCH) { printf("not match\n"); continue; } else if (z != 0) { regerror(z, ®, ebuf, sizeof(ebuf)); fprintf(stderr, "%s: regcom('%s')\n", ebuf, lbuf); return 2; } if (pm[0].rm_so!=-1) printf("%04d: %s\n", lno, lbuf); for (x = 0; x < nmatch && pm[x].rm_so != -1; ++ x) { mstr = strndup(lbuf + pm[x].rm_so, pm[x].rm_eo-pm[x].rm_so); printf(" $%d: %s\n", x, mstr); free(mstr); } fflush(stdout); } regfree(®); return 0;
}./testreg "[\[][^\[\]]*[\]][#|$] " [root@localhost bin]# not match[a\]# 0005: [a\]# $0: [a\]# ./testreg "[\[]+"anot match[0002: [ $0: [[root@localhost bin]# 0003: [root@localhost bin]# $0: [./testreg "[\]]+"]not match\] 0002: \] $0: \]-----------------./testreg "[]]+"]]0001: ]] $0: ]]./testreg "[^\[]]+" //瀵筟杞箟錛屼笉瀵筣杞箟[abc]0001: [abc] $0: c]./testreg "[^\[\]]+" //瀵筟鍜宂杞箟[abc]0001: [abc] $0: c]./testreg "[^]\[]+" //瀵筟杞箟錛屼笉瀵筣杞箟錛屼笖鎶奭鏀懼湪^鍚庝嬌]涓嶄笌鍓嶉潰鐨刐鍖歸厤[abc]0001: [abc] $0: abc]]>
鏂囩珷鏉ユ簮:http://blog.csdn.net/volant_hoo/archive/2009/05/11/4169102.aspx
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鏂囩珷鏉ユ簮:http://blog.csdn.net/volant_hoo/archive/2009/05/11/4169030.aspx
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鏂囩珷鏉ユ簮:http://blog.csdn.net/volant_hoo/archive/2009/05/11/4169093.aspx
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