src/io-dump/dump-remover.cpp

   1 #include "io-dump/dump-remover.h"
   2 #include "io-dump/dump-util.h"
   3 #include "io/read-pref-file.h"
   4 #include "util/angband-files.h"
   5
   6 /*!
   7  * @brief prefファイルを選択して処理する /
   8  * Ask for a "user pref line" and process it
   9  * @brief prf出力内容を消去する /
  10  * Remove old lines automatically generated before.
  11  * @param orig_file 消去を行うファイル名
  12  */
  13 void remove_auto_dump(concptr orig_file, concptr auto_dump_mark)
  14 {
  15     char buf[1024];
  16     bool between_mark = false;
  17     bool changed = false;
  18     int line_num = 0;
  19     long header_location = 0;
  20     char header_mark_str[80];
  21     char footer_mark_str[80];
  22
  23     sprintf(header_mark_str, auto_dump_header, auto_dump_mark);
  24     sprintf(footer_mark_str, auto_dump_footer, auto_dump_mark);
  25     size_t mark_len = strlen(footer_mark_str);
  26
  27     FILE *orig_fff;
  28     orig_fff = angband_fopen(orig_file, "r");
  29     if (!orig_fff) {
  30         return;
  31     }
  32
  33     FILE *tmp_fff = nullptr;
  34     char tmp_file[FILE_NAME_SIZE];
  35     if (!open_temporary_file(&tmp_fff, tmp_file)) {
  36         return;
  37     }
  38
  39     while (true) {
  40         if (angband_fgets(orig_fff, buf, sizeof(buf))) {
  41             if (between_mark) {
  42                 fseek(orig_fff, header_location, SEEK_SET);
  43                 between_mark = false;
  44                 continue;
  45             } else {
  46                 break;
  47             }
  48         }
  49
  50         if (!between_mark) {
  51             if (!strcmp(buf, header_mark_str)) {
  52                 header_location = ftell(orig_fff);
  53                 line_num = 0;
  54                 between_mark = true;
  55                 changed = true;
  56             } else {
  57                 fprintf(tmp_fff, "%s\n", buf);
  58             }
  59
  60             continue;
  61         }
  62
  63         if (!strncmp(buf, footer_mark_str, mark_len)) {
  64             int tmp;
  65             if (!sscanf(buf + mark_len, " (%d)", &tmp) || tmp != line_num) {
  66                 fseek(orig_fff, header_location, SEEK_SET);
  67             }
  68
  69             between_mark = false;
  70             continue;
  71         }
  72
  73         line_num++;
  74     }
  75
  76     angband_fclose(orig_fff);
  77     angband_fclose(tmp_fff);
  78
  79     if (changed) {
  80         tmp_fff = angband_fopen(tmp_file, "r");
  81         orig_fff = angband_fopen(orig_file, "w");
  82         while (!angband_fgets(tmp_fff, buf, sizeof(buf))) {
  83             fprintf(orig_fff, "%s\n", buf);
  84         }
  85
  86         angband_fclose(orig_fff);
  87         angband_fclose(tmp_fff);
  88     }
  89
  90     fd_kill(tmp_file);
  91 }