SSSim

/*

 * This is SSSim: the Simple & Stupid Simulator

 *

 *  Copyright (c) 2015 Luca Baldesi

 *

 *  This is free software; see gpl-3.0.txt

 */

#include "tokens.h"

#include <malloc.h>

#include <string.h>

char * substring_trim(const char * s,uint32_t start,uint32_t len)

{

        uint32_t leading=0,trailing=0;

        while(leading < len && (s[start+leading] == '\n' || s[start+leading] == ' '))

                leading++;

        while(trailing < len && (s[start+len-trailing-1] == '\n' || s[start+len-trailing-1] == ' '))

                trailing++;

        if(len - leading -trailing > 0)

                return strndup(s+start+leading,len-trailing);

        else

                return NULL;

}

void tokens_destroy(char *** sv,uint32_t n)

{

        uint32_t i;

        if (sv && *sv && **sv)

        {

                for( i = 0; i < n; i++)

                        free((*sv)[i]);

                free(*sv);

                *sv = NULL;

        }

}

char ** tokens_create(char * s,const char delim,uint32_t * n)

{

        char * np =s, *wp = s;

        char ** sv = NULL;

        uint32_t i;

        if(s && n && strcmp(s,""))

        {

                *n = 0;

                while((np = strchr(np,delim)))

                {

                        (*n)++;

                        np++;

                }

                (*n)++;

                sv = (char **) malloc(sizeof(char *) * (*n));

                np = s;

                for( i=0; i<*n; i++)

                {

                        np = strchr(np,delim);

                        if(np)

                        {

                                sv[i] = substring_trim(wp,0,np-wp);

                                np++;

                                wp=np;

                        } else

                                sv[i] = substring_trim(wp,0,strlen(wp));

                }

        }

        return sv;

}

int32_t tokens_check(char ** tokens, uint32_t n, char * target)

{

        int32_t pos = -1;

        uint32_t i;

        if(tokens && *tokens && target)

        {

                i = 0;

                while (pos < 0 && i < n)

                {

                        if (strcmp(tokens[i], target) == 0)

                                pos = i;

                        i++;

                }

        }

        return pos;

}