src/gromacs/fileio/strdb.c

   1 /*
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  37 #include "strdb.h"
  38
  39 #include "config.h"
  40
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43 #include <string.h>
  44
  45 #include "gromacs/utility/fatalerror.h"
  46 #include "gromacs/utility/smalloc.h"
  47 #include "gromacs/utility/cstringutil.h"
  48
  49 #include "gromacs/utility/futil.h"
  50
  51 gmx_bool get_a_line(FILE *fp, char line[], int n)
  52 {
  53     char *line0;
  54     char *dum;
  55
  56     snew(line0, n+1);
  57
  58     do
  59     {
  60         if (!fgets(line0, n+1, fp))
  61         {
  62             sfree(line0);
  63             return FALSE;
  64         }
  65         dum = strchr(line0, '\n');
  66         if (dum)
  67         {
  68             dum[0] = '\0';
  69         }
  70         else if (strlen(line0) == n)
  71         {
  72             fprintf(stderr, "Warning: line length exceeds buffer length (%d), data might be corrupted\n", n);
  73             line0[n-1] = '\0';
  74         }
  75         else
  76         {
  77             fprintf(stderr, "Warning: file does not end with a newline, last line:\n%s\n",
  78                     line0);
  79         }
  80         dum = strchr(line0, ';');
  81         if (dum)
  82         {
  83             dum[0] = '\0';
  84         }
  85         strncpy(line, line0, n);
  86         dum = line0;
  87         ltrim(dum);
  88     }
  89     while (dum[0] == '\0');
  90
  91     sfree(line0);
  92     return TRUE;
  93 }
  94
  95 gmx_bool get_header(char line[], char *header)
  96 {
  97     char temp[STRLEN], *dum;
  98
  99     strcpy(temp, line);
 100     dum = strchr(temp, '[');
 101     if (dum == NULL)
 102     {
 103         return FALSE;
 104     }
 105     dum[0] = ' ';
 106     dum    = strchr(temp, ']');
 107     if (dum == NULL)
 108     {
 109         gmx_fatal(FARGS, "header is not terminated on line:\n'%s'\n", line);
 110         return FALSE;
 111     }
 112     dum[0] = '\0';
 113     if (sscanf(temp, "%s%*s", header) != 1)
 114     {
 115         return FALSE;
 116     }
 117
 118     return TRUE;
 119 }
 120
 121 int get_strings(const char *db, char ***strings)
 122 {
 123     FILE  *in;
 124     char **ptr;
 125     char   buf[256];
 126     int    i, nstr;
 127
 128     in = libopen(db);
 129
 130     if (fscanf(in, "%d", &nstr) != 1)
 131     {
 132         gmx_warning("File %s is empty", db);
 133         gmx_ffclose(in);
 134         return 0;
 135     }
 136     snew(ptr, nstr);
 137     for (i = 0; (i < nstr); i++)
 138     {
 139         if (1 != fscanf(in, "%s", buf))
 140         {
 141             gmx_fatal(FARGS, "Cannot read string from buffer");
 142         }
 143 #ifdef DEBUG
 144         fprintf(stderr, "Have read: %s\n", buf);
 145 #endif
 146         ptr[i] = strdup(buf);
 147     }
 148     gmx_ffclose(in);
 149
 150     *strings = ptr;
 151
 152     return nstr;
 153 }
 154
 155 int search_str(int nstr, char **str, char *key)
 156 {
 157     int i;
 158
 159     /* Linear search */
 160     for (i = 0; (i < nstr); i++)
 161     {
 162         if (gmx_strcasecmp(str[i], key) == 0)
 163         {
 164             return i;
 165         }
 166     }
 167
 168     return -1;
 169 }
 170
 171 int fget_lines(FILE *in, char ***strings)
 172 {
 173     char **ptr;
 174     char   buf[STRLEN];
 175     int    i, nstr;
 176     char  *pret;
 177
 178     pret = fgets(buf, STRLEN-1, in);
 179     if (pret == NULL  || sscanf(buf, "%d", &nstr) != 1)
 180     {
 181         gmx_warning("File is empty");
 182         gmx_ffclose(in);
 183
 184         return 0;
 185     }
 186     snew(ptr, nstr);
 187     for (i = 0; (i < nstr); i++)
 188     {
 189         fgets2(buf, STRLEN-1, in);
 190         ptr[i] = gmx_strdup(buf);
 191     }
 192
 193     (*strings) = ptr;
 194
 195     return nstr;
 196 }
 197
 198 int get_lines(const char *db, char ***strings)
 199 {
 200     FILE *in;
 201     int   nstr;
 202
 203     in   = libopen(db);
 204     nstr = fget_lines(in, strings);
 205     gmx_ffclose(in);
 206
 207     return nstr;
 208 }
 209
 210 int get_file(const char *db, char ***strings)
 211 {
 212     FILE  *in;
 213     char **ptr = NULL;
 214     char   buf[STRLEN];
 215     int    i, nstr, maxi;
 216
 217     in = libopen(db);
 218
 219     i = maxi = 0;
 220     while (fgets2(buf, STRLEN-1, in))
 221     {
 222         if (i >= maxi)
 223         {
 224             maxi += 50;
 225             srenew(ptr, maxi);
 226         }
 227         ptr[i] = strdup(buf);
 228         i++;
 229     }
 230     nstr = i;
 231     gmx_ffclose(in);
 232     srenew(ptr, nstr);
 233     *strings = ptr;
 234
 235     return nstr;
 236 }