source: branches/help/GDE/CLUSTAL/util.c

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdarg.h>
#include <ctype.h>
#include "clustalv.h"

/*
*       Prototypes
*/

void *  ckalloc(size_t);
void            fatal(char *,...);
void            error(char *,...);
void            warning(char *,...);
char *  rtrim(char *);
char *  upstr(char *);
char *  lowstr(char *);
void            getstr(char *,char *);
double  getreal(char *,double,double);
int             getint(char *,int,int,int);
void            do_system(void);
Boolean linetype(char *,char *);
void            get_path(char *,char *);

/*
*       ckalloc()
*
*       Tries to allocate "bytes" bytes of memory. Exits program if failed.
*       Return value:
*               Generic pointer to the newly allocated memory.
*/

void *ckalloc(size_t bytes)
{
        register void *ret;
        
        if( (ret = malloc(bytes)) == NULL)
                fatal("Out of memory\n");
        else
                return ret;     
}

/*
*       fatal()
*
*       Prints error msg to stderr and exits.
*       Variadic parameter list can be passed.
*
*       Return values:
*               none
*/

void fatal( char *msg,...)
{
        va_list ap;
        
        va_start(ap,msg);
        fprintf(stderr,"\n\nFATAL ERROR: ");
        vfprintf(stderr,msg,ap);
        fprintf(stderr,"\n\n");
        va_end(ap);
        exit(1);
}

/*
*       error()
*
*       Prints error msg to stderr.
*       Variadic parameter list can be passed.
*
*       Return values:
*               none
*/

void error( char *msg,...)
{
        va_list ap;
        
        va_start(ap,msg);
        fprintf(stderr,"\n\nERROR: ");
        vfprintf(stderr,msg,ap);
        fprintf(stderr,"\n\n");
        va_end(ap);
}

/*
*       warning()
*
*       Prints warning msg to stderr.
*       Variadic parameter list can be passed.
*
*       Return values:
*               none
*/

void warning( char *msg,...)
{
        va_list ap;
        
        va_start(ap,msg);
        fprintf(stderr,"\n\nWARNING: ");
        vfprintf(stderr,msg,ap);
        fprintf(stderr,"\n\n");
        va_end(ap);
}


/*
*       rtrim()
*
*       Removes trailing blanks from a string
*
*       Return values:
*               Pointer to the processed string
*/

char * rtrim(char *str)
{
        register int p;

        p = strlen(str) - 1;
        
        while ( isspace(str[p]) )
                p--;
                
        str[p + 1] = EOS;
        
        return str;
}


/*
*       upstr()
*
*       Converts string str to uppercase.
*       Return values:
*               Pointer to the converted string.
*/

char * upstr(char *str)
{
        register char *s = str;
        
        while( *s = toupper(*s) )
                s++;
                
        return str;
}

/*
*       lowstr()
*
*       Converts string str to lower case.
*       Return values:
*               Pointer to the converted string.
*/

char * lowstr(char *str)
{
        register char *s = str;
        
        while( *s = tolower(*s) )
                s++;
                
        return str;
}

void getstr(char *instr,char *outstr)
{       
        fprintf(stdout,"%s: ",instr);
        gets(outstr);
}

double getreal(char *instr,double minx,double maxx)
{
        double ret;
        
        while(TRUE) {
                fprintf(stdout,"%s (%.1lf-%.1lf): ",instr,minx,maxx);
                ret=0.0;
                scanf("%lf",&ret);
                getchar();
                if(ret>maxx) {
                        fprintf(stderr,"ERROR: Max. value=%.1lf\n\n",maxx);
                        continue;
                }
                if(ret<minx) {
                        fprintf(stderr,"ERROR: Min. value=%.1lf\n\n",minx);
                        continue;
                }
                break;
        }
        return ret;
}


int getint(char *instr,int minx,int maxx, int def)
{
        int ret;
        char line[MAXLINE];     

        while(TRUE) {
                fprintf(stdout,"%s (%d..%d)    [%d]: ",instr,minx,maxx,def);
                ret=0;
                gets(line);
                sscanf(line,"%d",&ret);
                if(ret == 0) return def;
                if(ret>maxx) {
                        fprintf(stderr,"ERROR: Max. value=%d\n\n",maxx);
                        continue;
                }
                if(ret<minx) {
                        fprintf(stderr,"ERROR: Min. value=%d\n\n",minx);
                        continue;
                }
                break;
        }
        return ret;
}

void do_system()
{
        char line[MAXLINE];
        
        getstr("\n\nEnter system command",line);
        if(*line != EOS)
                system(line);
        fprintf(stdout,"\n\n");
}


Boolean linetype(char *line,char *code)
{
        return( strncmp(line,code,strlen(code)) == 0 );
}


void get_path(char *str,char *path)
{
        register int i;
        
        strcpy(path,str);
        for(i=strlen(path)-1;i>-1;--i) {
                if(str[i]==DIRDELIM) {
                        i = -1;
                        break;
                }
                if(str[i]=='.') break;
        }
        if(i<0)
                strcat(path,".");
        else
                path[i+1]=EOS;
}