src/gmxlib/strdb.c

   1 /*
   2  *
   3  *                This source code is part of
   4  *
   5  *                 G   R   O   M   A   C   S
   6  *
   7  *          GROningen MAchine for Chemical Simulations
   8  *
   9  *                        VERSION 3.2.0
  10  * Written by David van der Spoel, Erik Lindahl, Berk Hess, and others.
  11  * Copyright (c) 1991-2000, University of Groningen, The Netherlands.
  12  * Copyright (c) 2001-2004, The GROMACS development team,
  13  * check out http://www.gromacs.org for more information.
  14
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * If you want to redistribute modifications, please consider that
  21  * scientific software is very special. Version control is crucial -
  22  * bugs must be traceable. We will be happy to consider code for
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  25  * files - if they are missing, get the official version at www.gromacs.org.
  26  *
  27  * To help us fund GROMACS development, we humbly ask that you cite
  28  * the papers on the package - you can find them in the top README file.
  29  *
  30  * For more info, check our website at http://www.gromacs.org
  31  *
  32  * And Hey:
  33  * GROningen Mixture of Alchemy and Childrens' Stories
  34  */
  35 #ifdef HAVE_CONFIG_H
  36 #include <config.h>
  37 #endif
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include "string2.h"
  42 #include "futil.h"
  43 #include "smalloc.h"
  44 #include "gmx_fatal.h"
  45 #include "strdb.h"
  46
  47 gmx_bool get_a_line(FILE *fp,char line[],int n)
  48 {
  49   char *line0;
  50   char *dum;
  51
  52   snew(line0,n+1);
  53
  54   do {
  55     if (!fgets(line0,n+1,fp)) {
  56       sfree(line0);
  57       return FALSE;
  58     }
  59     dum=strchr(line0,'\n');
  60     if (dum)
  61       dum[0]='\0';
  62     else if (strlen(line0)==n) {
  63       fprintf(stderr,"Warning: line length exceeds buffer length (%d), data might be corrupted\n",n);
  64       line0[n-1] ='\0';
  65     } else
  66       fprintf(stderr,"Warning: file does not end with a newline, last line:\n%s\n",
  67               line0);
  68     dum=strchr(line0,';');
  69     if (dum)
  70       dum[0]='\0';
  71     strncpy(line,line0,n);
  72     dum=line0;
  73     ltrim(dum);
  74   } while (dum[0] == '\0');
  75
  76   sfree(line0);
  77   return TRUE;
  78 }
  79
  80 gmx_bool get_header(char line[],char *header)
  81 {
  82   char temp[STRLEN],*dum;
  83
  84   strcpy(temp,line);
  85   dum=strchr(temp,'[');
  86   if (dum==NULL)
  87     return FALSE;
  88   dum[0]=' ';
  89   dum=strchr(temp,']');
  90   if (dum==NULL) {
  91     gmx_fatal(FARGS,"header is not terminated on line:\n'%s'\n",line);
  92     return FALSE;
  93   }
  94   dum[0]='\0';
  95   if (sscanf(temp,"%s%*s",header) != 1)
  96     return FALSE;
  97
  98   return TRUE;
  99 }
 100
 101 int get_strings(const char *db,char ***strings)
 102 {
 103   FILE *in;
 104   char **ptr;
 105   char buf[256];
 106   int  i,nstr;
 107
 108   in=libopen(db);
 109
 110   if (fscanf(in,"%d",&nstr) != 1) {
 111     gmx_warning("File %s is empty",db);
 112     ffclose(in);
 113     return 0;
 114   }
 115   snew(ptr,nstr);
 116   for(i=0; (i<nstr); i++) {
 117     if(1 != fscanf(in,"%s",buf))
 118     {
 119       gmx_fatal(FARGS,"Cannot read string from buffer");
 120     }
 121 #ifdef DEBUG
 122     fprintf(stderr,"Have read: %s\n",buf);
 123 #endif
 124     ptr[i] = strdup(buf);
 125   }
 126   ffclose(in);
 127
 128   *strings=ptr;
 129
 130   return nstr;
 131 }
 132
 133 int search_str(int nstr,char **str,char *key)
 134 {
 135   int i;
 136
 137   /* Linear search */
 138   for(i=0; (i<nstr); i++)
 139     if (gmx_strcasecmp(str[i],key)==0)
 140       return i;
 141
 142   return -1;
 143 }
 144
 145 int fget_lines(FILE *in,char ***strings)
 146 {
 147   char **ptr;
 148   char buf[256];
 149   int  i,nstr;
 150   char *pret;
 151
 152   pret = fgets(buf,255,in);
 153   if ( pret==NULL  || sscanf(buf,"%d",&nstr) != 1)
 154   {
 155     gmx_warning("File is empty");
 156     ffclose(in);
 157
 158     return 0;
 159   }
 160   snew(ptr,nstr);
 161   for(i=0; (i<nstr); i++) {
 162     fgets2(buf,255,in);
 163     ptr[i] = gmx_strdup(buf);
 164   }
 165
 166   (*strings) = ptr;
 167
 168   return nstr;
 169 }
 170
 171 int get_lines(const char *db,char ***strings)
 172 {
 173   FILE *in;
 174   int  nstr;
 175
 176   in   = libopen(db);
 177   nstr = fget_lines(in,strings);
 178   ffclose(in);
 179
 180   return nstr;
 181 }
 182
 183 int get_file(const char *db,char ***strings)
 184 {
 185   FILE *in;
 186   char **ptr=NULL;
 187   char buf[STRLEN];
 188   int  i,nstr,maxi;
 189
 190   in=libopen(db);
 191
 192   i=maxi=0;
 193   while (fgets2(buf,STRLEN-1,in)) {
 194     if (i>=maxi) {
 195       maxi+=50;
 196       srenew(ptr,maxi);
 197     }
 198     ptr[i] = strdup(buf);
 199     i++;
 200   }
 201   nstr=i;
 202   ffclose(in);
 203   srenew(ptr,nstr);
 204   *strings=ptr;
 205
 206   return nstr;
 207 }
 208