Clean System Files/readLine.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include <readline/readline.h>
   5 #include <readline/history.h>
   6
   7 #include "Clean.h"
   8
   9 static char *cs_answer = (char *)NULL;
  10
  11 char *cleanStringToCString(CleanString s){
  12         unsigned long len = CleanStringLength(s);
  13         char *cs = (char *)malloc(len+1);
  14         if(cs == NULL){
  15                 printf("malloc failed...\n");
  16                 exit(1);
  17         }
  18         memcpy(cs, CleanStringCharacters(s), len);
  19         cs[len] = '\0';
  20         return cs;
  21 }
  22
  23 void cleanReadLine(CleanString prompt, int history, CleanString *result)
  24 {
  25         char *cs_prompt = cleanStringToCString(prompt);
  26
  27         //Get the answer and add to history if not empty
  28         if(cs_answer){
  29                 free(cs_answer);
  30                 cs_answer = (char *)NULL;
  31         }
  32         cs_answer = readline(cs_prompt);
  33         free(cs_prompt);
  34         if(cs_answer && *cs_answer && history){
  35                 add_history(cs_answer);
  36         }
  37
  38         if(!cs_answer){ //In case of an EOF
  39                 CleanStringVariable(answer, 1);
  40                 *result = (CleanString) answer;
  41                 memcpy(CleanStringCharacters(answer), "", 1);
  42                 CleanStringLength(answer) = 1;
  43         } else { //In case of a proper response
  44                 CleanStringVariable(answer, strlen(cs_answer));
  45                 *result = (CleanString) answer;
  46                 memcpy(CleanStringCharacters(answer), cs_answer, strlen(cs_answer));
  47                 CleanStringLength(answer) = strlen(cs_answer);
  48         }
  49 }
  50
  51 void cleanSetReadLineName(CleanString name){
  52         rl_readline_name = cleanStringToCString(name);
  53 }
  54
  55 void cleanUsingHistory(){
  56         using_history();
  57 }
  58
  59 void cleanAddHistory(CleanString entry){
  60         char *cs_entry = cleanStringToCString(entry);
  61         add_history(cs_entry);
  62         free(cs_entry);
  63 }
  64
  65 void cleanClearHistory(){
  66         clear_history();
  67 }
  68
  69 int cleanHistorySearch(CleanString s, int dir){
  70         char *cs_s = cleanStringToCString(s);
  71         int ret = history_search(cs_s, dir);
  72         free(cs_s);
  73         return ret;
  74 }
  75
  76 int cleanHistorySearchPrefix(CleanString s, int dir){
  77         char *cs_s = cleanStringToCString(s);
  78         int ret = history_search_prefix(cs_s, dir);
  79         free(cs_s);
  80         return ret;
  81 }
  82
  83 int cleanHistorySearchPos(CleanString s, int dir, int pos){
  84         char *cs_s = cleanStringToCString(s);
  85         int ret = history_search_pos(cs_s, dir, pos);
  86         free(cs_s);
  87         return ret;
  88 }
  89
  90 int cleanReadHistory(CleanString path)
  91 {
  92         char *cs_path = cleanStringToCString(path);
  93         int errno = read_history(cs_path);
  94         free(cs_path);
  95         return errno;
  96 }
  97
  98 int cleanReadHistoryRange(CleanString path, int from, int to)
  99 {
 100         char *cs_path = cleanStringToCString(path);
 101         int errno = read_history_range(cs_path, from, to);
 102         free(cs_path);
 103         return errno;
 104 }
 105
 106 int cleanWriteHistory(CleanString path)
 107 {
 108         char *cs_path = cleanStringToCString(path);
 109         int errno = write_history(cs_path);
 110         free(cs_path);
 111         return errno;
 112 }
 113
 114 int cleanAppendHistory(int n, CleanString path)
 115 {
 116         char *cs_path = cleanStringToCString(path);
 117         int errno = append_history(n, cs_path);
 118         free(cs_path);
 119         return errno;
 120 }
 121
 122 int cleanHistoryTruncateFile(CleanString path, int nlines)
 123 {
 124         char *cs_path = cleanStringToCString(path);
 125         int errno = history_truncate_file(cs_path, nlines);
 126         free(cs_path);
 127         return errno;
 128 }
 129