root/dvm/util.c

DEFINITIONS

1. dvm_vstr_clear
2. my_strlen
3. dvm_vstr_append_string
4. dvm_vstr_append_character

#include <stdio.h>
#include <string.h>
#include "MEM.h"
#include "DBG.h"
#include "dvm_pri.h"

void
dvm_vstr_clear(VString *v)
{
    v->string = NULL;
}

static int
my_strlen(DVM_Char *str)
{
    if (str == NULL) {
        return 0;
    }
    return dvm_wcslen(str);
}

void
dvm_vstr_append_string(VString *v, DVM_Char *str)
{
    int new_size;
    int old_len;

    old_len = my_strlen(v->string);
    new_size = sizeof(DVM_Char) * (old_len + dvm_wcslen(str)  + 1);
    v->string = MEM_realloc(v->string, new_size);
    dvm_wcscpy(&v->string[old_len], str);
}

void
dvm_vstr_append_character(VString *v, DVM_Char ch)
{
    int current_len;
    
    current_len = my_strlen(v->string);
    v->string = MEM_realloc(v->string,sizeof(DVM_Char) * (current_len + 2));
    v->string[current_len] = ch;
    v->string[current_len+1] = L'\0';
}