75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
#include "array.h"
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io_status process_s(const char * s, char * s1, char * s2, const size_t len_s) {
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size_t i;
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int j;
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for (i = 0, j = 0; i < len_s; ++i) {
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if (s[i] == '\\') {
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if (i + 1 == len_s) return ERROR_PATTERN;
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else {
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s1[j] = 0;
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s2[j++] = s[++i];
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}
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} else if ((s[i] == '$') && (i + 1 == len_s)) {
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if (j != 0)
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{
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s1[j-1] = '1';
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}
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} else {
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s1[j] = '0';
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s2[j++] = s[i];
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}
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}
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s2[j] = '\0';
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return SUCCESS;
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}
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io_status process_file(const char * f_in, const char * f_out, const char * s1, const char * s2, int * r) {
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FILE * fp = fopen(f_in, "r");
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if (!fp) return ERROR_OPEN;
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else {
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char buf[LEN] = {0};
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size_t len_s = strlen(s2);
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FILE * fw = fopen(f_out, "w");
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int i;
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if (!fw) {fclose(fp); return ERROR_OPEN;}
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for (i = 0; fgets(buf, sizeof(buf), fp);) {
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size_t len_buf = strlen(buf);
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bool is_approach;
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if (buf[len_buf-1] == '\n') buf[--len_buf] = '\0';
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is_approach = process_string(buf, s1, s2, len_s, len_buf);
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if (is_approach)
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{
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i++;
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if (buf[len_buf - 1] == '\n') buf[len_buf - 1] = '\0';
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fprintf(fw, "%s\n", buf);
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}
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}
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*r = i;
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}
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return SUCCESS;
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}
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bool process_string(const char * buf, const char * s1, const char * s2, const size_t len_s, const size_t len_buf) {
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if (len_buf < len_s) return false;
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if (s1[len_s - 1] == '1') {
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size_t i;
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for (i = len_buf-1; i > len_buf-len_s-1; --i) {
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if (buf[i] != s2[i-(len_buf-len_s)]) return false;
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}
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} else {
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char * s_pointer = strstr(buf, s2);
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if (!s_pointer) return false;
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}
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return true;
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}
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