guicast/stringfile.C

   1 #include "stringfile.h"
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4 #include <string.h>
   5
   6 StringFile::StringFile(long length)
   7 {
   8         pointer = 0;
   9         if(length == 0)
  10         {
  11                 this->length = 100000;
  12         }
  13         else
  14         {
  15                 this->length = length;
  16         }
  17         string = new char[this->length + 1];
  18         available = this->length;
  19 }
  20
  21 StringFile::StringFile(char *filename)
  22 {
  23         FILE *in;
  24         if(in = fopen(filename, "rb"))
  25         {
  26                 fseek(in, 0, SEEK_END);
  27                 length = ftell(in);
  28                 available = length;
  29                 fseek(in, 0, SEEK_SET);
  30                 string = new char[length + 5];
  31
  32                 fread(string, length, 1, in);
  33                 for(int i = 0; i < 5; i++) string[length + i] = 0;
  34                 fclose(in);
  35         }
  36         else
  37         {
  38                 //printf("File not found: %s\n", filename);
  39                 length = 0;
  40                 available = 1;
  41                 string = new char[1];
  42                 string[0] = 0;
  43         }
  44
  45         pointer = 0;
  46 }
  47
  48 StringFile::~StringFile()
  49 {
  50         delete [] string;
  51 }
  52
  53 int StringFile::write_to_file(char *filename)
  54 {
  55         FILE *out;
  56         if(out = fopen(filename, "wb"))
  57         {
  58                 fwrite(string, pointer, 1, out);
  59         }
  60         else
  61         {
  62 //              printf("Couldn't open %s for writing.\n", filename);
  63                 return 1;
  64         }
  65         fclose(out);
  66         return 0;
  67 }
  68
  69 int StringFile::read_from_string(char *string)
  70 {
  71         int i;
  72
  73         delete [] this->string;
  74         length = strlen(string);
  75         available = length;
  76         this->string = new char[length + 5];
  77         strcpy(this->string, string);
  78         for(i = 0; i < 5; i++) this->string[length + i] = 0;
  79         return 0;
  80 }
  81
  82 long StringFile::get_length()
  83 {
  84         return strlen(string);
  85 }
  86
  87 long StringFile::get_pointer()
  88 {
  89         return pointer;
  90 }
  91
  92 int StringFile::readline(char *arg2)
  93 {
  94         readline(string1, arg2);
  95         return 0;
  96 }
  97
  98 int StringFile::readline()
  99 {
 100         readline(string1, string1);
 101         return 0;
 102 }
 103
 104 int StringFile::readline(float *arg2)
 105 {
 106         readline(string1, arg2);
 107         return 0;
 108 }
 109
 110 int StringFile::readline(int *arg2)
 111 {
 112         readline(string1, arg2);
 113         return 0;
 114 }
 115
 116 int StringFile::readline(long *arg2)
 117 {
 118         readline(string1, arg2);
 119         return 0;
 120 }
 121
 122 int StringFile::readline(Freq *arg2)
 123 {
 124         readline(string1, &(arg2->freq));
 125         return 0;
 126 }
 127
 128 int StringFile::readline(char *arg1, char *arg2)
 129 {
 130         int i, len, max;
 131         len = 0; max = 1024;
 132
 133         while(string[pointer] == ' ') pointer++; // skip indent
 134         arg1[0] = 0;    arg2[0] = 0;
 135
 136         for(i = 0; string[pointer] != ' ' && string[pointer] != '\n' && len < max; i++, pointer++)
 137         {     // get title
 138                 arg1[i] = string[pointer];
 139                 len++;
 140         }
 141         arg1[i] = 0;
 142
 143         if(string[pointer] != '\n')
 144         {       // get value
 145                 pointer++;      // skip space
 146                 for(i = 0; string[pointer] != '\n' && len < max; i++, pointer++)
 147                 {
 148                         arg2[i] = string[pointer];
 149                         len++;
 150                 }
 151                 arg2[i] = 0;
 152         }
 153         pointer++;      // skip eoln
 154         return 0;
 155 }
 156
 157 int StringFile::backupline()
 158 {
 159         while(string[pointer] != 10 && pointer > 0)
 160         {
 161                 pointer--;     // first eoln
 162         }
 163         if(string[pointer] == 10) pointer--;        // skip eoln
 164
 165         while(string[pointer] != 10 && pointer > 0)
 166         {
 167                 pointer--;     // second eoln
 168         }
 169
 170         if(string[pointer] == 10) pointer++;      // skip eoln
 171         return 0;
 172 }
 173
 174 int StringFile::readline(char *arg1, long *arg2)
 175 {
 176         readline(arg1, string1);
 177         *arg2 = atol(string1);
 178         return 0;
 179 }
 180
 181 int StringFile::readline(char *arg1, int *arg2)
 182 {
 183         long arg;
 184         readline(arg1, &arg);
 185         *arg2 = (int)arg;
 186         return 0;
 187 }
 188
 189 int StringFile::readline(char *arg1, float *arg2)
 190 {
 191         readline(arg1, string1);
 192         *arg2 = atof(string1);
 193         return 0;
 194 }
 195
 196 int StringFile::writeline(char *arg1, int indent)
 197 {
 198         int i;
 199
 200 // reallocate the string
 201         if(pointer + strlen(arg1) > available)
 202         {
 203                 char *newstring = new char[available * 2];
 204                 strcpy(newstring, string);
 205                 delete string;
 206                 available *= 2;
 207                 length *= 2;
 208                 string = newstring;
 209         }
 210
 211         for(i = 0; i < indent; i++, pointer++) string[pointer] = ' ';
 212         sprintf(&string[pointer], arg1);
 213         pointer += strlen(arg1);
 214         return 0;
 215 }
 216
 217 int StringFile::writeline(char *arg1, char *arg2, int indent)
 218 {
 219         int i;
 220
 221         sprintf(string1, "%s %s\n", arg1, arg2);
 222         writeline(string1, indent);
 223         return 0;
 224 }
 225
 226 int StringFile::writeline(char *arg1, long arg2, int indent)
 227 {
 228         sprintf(string1, "%s %ld\n", arg1, arg2);
 229         writeline(string1, indent);
 230         return 0;
 231 }
 232
 233 int StringFile::writeline(char *arg1, int arg2, int indent)
 234 {
 235         sprintf(string1, "%s %d\n", arg1, arg2);
 236         writeline(string1, indent);
 237         return 0;
 238 }
 239
 240 int StringFile::writeline(char *arg1, float arg2, int indent)
 241 {
 242         sprintf(string1, "%s %f\n", arg1, arg2);
 243         writeline(string1, indent);
 244         return 0;
 245 }
 246
 247 int StringFile::writeline(char *arg1, Freq arg2, int indent)
 248 {
 249         sprintf(string1, "%s %d\n", arg1, arg2.freq);
 250         writeline(string1, indent);
 251         return 0;
 252 }