A Real-Time Detection Method of Software Configuration Errors Based on Fine-Grained Configuration Item Types

Table 3

Syntax patterns of different configuration item types.

Configuration item type	Syntax pattern
Memory	[\d]+[KB|MB|GB]
Time	[\d]+[ms|s|min|h|d]
Speed rate	[\d]+[bps|Kbps|Mbps]
Port	[\d]+
Fraction	[\d]+
Count	[\d]+
Permission	[\d]+
User name	[a-zA-Z][a-zA-Z0-9]∗
File name	[\w−]+[\w−]+
Boolean	[true|false|on|off|yes|no]
Language	[a-zA-Z]2
MIME types	[\w/-.]+
Path	/.+(/.+)∗
Domain name	[a-z]+://.∗
IP address	[\d]1,3(.[\d]1,3)3
E-mail	(\w)+(\.\w+)∗@(\w)+((\.\w+)+