end = b->data;
while (!done) {
-
switch (*end) {
case '\\':
/* Protected char; pass the protection */
if (end_var == beg_var)
THROW0(arg_error, 0, "Variable name empty ($ is not valid)");
}
-// DEBUG1("End_var = %s",end_var);
+/* DEBUG5("var='%.*s'; subst='%.*s'; End_var = '%s'",
+ end_var-beg_var,beg_var,
+ end_subst-beg_subst,beg_subst,
+ end_var);*/
/* ok, we now have the variable name. Search the dictionary for the substituted value */
value =
xbt_dict_get_or_null_ext(patterns, beg_var, end_var - beg_var);
-// DEBUG4("Search for %.*s, found %s (default value = %s)\n",
-// end_var-beg_var,beg_var,
-// (value?value:"NULL"),
-// (default_value?default_value:"NULL"));
+/* DEBUG1("Deal with '%s'",b->data);
+ DEBUG4("Search for %.*s, found %s (default value = %s)\n",
+ end_var-beg_var,beg_var,
+ (value?value:"(no value)"),
+ (default_value?default_value:"(no value)"));*/
if (value)
value = xbt_strdup(value);
- else
+ else if (default_value)
value = xbt_strdup(default_value);
-
- if (!value)
+ else
value = xbt_strdup("");
/* En route for the actual substitution */
val_len = strlen(value);
-// DEBUG2("val_len = %d, key_len=%d",val_len,end_subst-beg_subst);
+// DEBUG2("val_len = %d, key_len=%d",val_len,end_subst-beg_subst);
if (val_len <= end_subst - beg_subst) {
/* enough room to do the substitute in place */
-// INFO3("Substitute '%s' with '%s' for %d chars",beg_subst,value, val_len);
+// DEBUG4("Substitute key name by its value: ie '%.*s' by '%.*s'",end_subst-beg_subst,beg_subst,val_len,value);
memmove(beg_subst, value, val_len); /* substitute */
-// INFO3("Substitute '%s' with '%s' for %d chars",beg_subst+val_len,end_subst, b->used-(end_subst-b->data)+1);
+// DEBUG1("String is now: '%s'",b->data);
+/* DEBUG8("Move end of string closer (%d chars moved) :\n-'%.*s%.*s'\n+'%.*s%s'",
+ b->used - (end_subst - b->data) + 1,
+ beg_subst-b->data,b->data,
+ b->used-(end_subst-b->data)+1,beg_subst+val_len,
+ beg_subst-b->data,b->data,
+ end_subst);*/
memmove(beg_subst + val_len, end_subst, b->used - (end_subst - b->data) + 1); /* move the end of the string closer */
+// DEBUG1("String is now: '%s'",b->data);
end = beg_subst + val_len; /* update the currently explored char in the overall loop */
+// DEBUG1("end of substituted section is now '%s'",end);
b->used -= end_subst - beg_subst - val_len; /* update string buffer used size */
+// DEBUG3("Used:%d end:%d ending char:%d",b->used,end-b->data,*end);
} else {
/* we have to extend the data area */
int tooshort =
val_len - (end_subst - beg_subst) + 1 /*don't forget \0 */ ;
int newused = b->used + tooshort;
end += tooshort; /* update the pointer of the overall loop */
-// DEBUG2("Too short (by %d chars; %d chars left in area)",val_len- (end_subst-beg_subst), b->size - b->used);
+// DEBUG2("Too short (by %d chars; %d chars left in area)",val_len- (end_subst-beg_subst), b->size - b->used);
if (newused > b->size) {
/* We have to realloc the data area before (because b->size is too small). We have to update our pointers, too */
char *newdata =
memmove(beg_subst + val_len, end_subst, b->used - (end_subst - b->data) + 2); /* move the end of the string a bit further */
memmove(beg_subst, value, val_len); /* substitute */
b->used = newused;
+// DEBUG1("String is now: %s",b->data);
}
free(value);
if (default_value)
free(default_value);
+
+ end--; /* compensate the next end++*/
}
break;
}
XBT_TEST_SUITE("xbt_strbuff", "String Buffers");
-XBT_TEST_UNIT("xbt_strbuff_substitute", test_strbuff_substitute,
- "test the function xbt_strbuff_substitute")
+XBT_TEST_UNIT("xbt_strbuff_substitute", test_strbuff_substitute,"test the function xbt_strbuff_substitute")
{
xbt_test_add0("Empty");
mytest("", "", "");