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select: add message about 'help' field to get more help on each error hit during selection parsing

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Inform about 'help' to get more help about selection fields and operators
after each syntax error hit:

  "Use 'help' for selection to get more help."
This commit is contained in:
Peter Rajnoha 2014-06-23 12:12:01 +02:00
parent 69075d0b43
commit 9c3c357874
1 changed files with 6 additions and 1 deletions
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7
libdm/libdm-report.c
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@ -2396,7 +2396,8 @@ out_reserved_values:
log_warn(" ");
}
static char _sel_syntax_error_at_msg[] = "Selection syntax error at '%s'.";
static const char _sel_syntax_error_at_msg[] = "Selection syntax error at '%s'.";
static const char _sel_help_ref_msg[] = "Use \'help\' for selection to get more help.";
/*
* Selection parser
@ -2460,6 +2461,8 @@ static struct selection_node *_parse_selection(struct dm_report *rh,
c = we[0];
tmp = (char *) we;
tmp[0] = '\0';
_display_fields(rh, 0, 1);
log_warn(" ");
log_error("Selection field is uncomparable: %s.", ws);
tmp[0] = c;
goto bad;
@ -2522,6 +2525,7 @@ static struct selection_node *_parse_selection(struct dm_report *rh,
return sn;
bad:
log_error(_sel_syntax_error_at_msg, s);
log_error(_sel_help_ref_msg);
*next = s;
return NULL;
}
@ -2695,6 +2699,7 @@ struct dm_report *dm_report_init_with_selection(uint32_t *report_types,
if (*next) {
log_error("Expecting logical operator");
log_error(_sel_syntax_error_at_msg, next);
log_error(_sel_help_ref_msg);
goto error;
}