Lua 匹配 "Conference 10-" 后的 4 位数字的模式
Lua pattern matching 4 digits that follow "Conference 10-"
我有一些字符串数据需要搜索以查找特定数字:
这是一个示例 string/buffer:
Conference 11-2222-a.b.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound) 176;014802813@mydomain;0182e4e4-193b-4d63-9bef-b597f0655c83;jdo ;014802813;hear|speak|talking|floor;0;0;0;0
Conference 10-1234.c.fdf.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound)175;.net/4122@mydomain;77c1f301-85e1-4275-9c539e5927b87d6;4122;hear|speak|talking|floor;0;0;0;0
我需要做的是搜索此输出和 "Conference 10-" 后面的 4 位数字。在这种情况下,我要查找的是 1234。
**我试过的**
我已经尝试了以下所有模式...none 其中满足了我的需求:
print(string.match(input, "10-%d%d%d%d-"));
print(string.match(input, "Conference 10-%d%d%d%d-"));
print(string.match(input, "Conference 10-(%d)-");
print(string.match(input, "Conference 10(\-)(%d));
您需要使用 %
转义连字符,因为 未转义 -
是 Lua 中的惰性量词( -
还有 0 次或多次重复)。
str = "Conference 11-2222-a.b.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound) 176;014802813@mydomain;0182e4e4-193b-4d63-9bef-b597f0655c83;jdo ;014802813;hear|speak|talking|floor;0;0;0;0\n\nConference 10-1234.c.fdf.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound)175;.net/4122@mydomain;77c1f301-85e1-4275-9c539e5927b87d6;4122;hear|speak|talking|floor;0;0;0;0"
print(string.match(str, 'Conference 10%-(%d%d%d%d)') )
^
来自Lua 20.2 – Patterns reference:
Some characters, called magic characters, have special meanings when used in a pattern. The magic characters are
( ) . % + - * ? [ ^ $
The character %
works as an escape for those magic characters.
使用gsub()
:
print(string.gsub(".*Conference 10%-(%d%d%d%d)%-.*", "%1"));
我有一些字符串数据需要搜索以查找特定数字:
这是一个示例 string/buffer:
Conference 11-2222-a.b.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound) 176;014802813@mydomain;0182e4e4-193b-4d63-9bef-b597f0655c83;jdo ;014802813;hear|speak|talking|floor;0;0;0;0
Conference 10-1234.c.fdf.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound)175;.net/4122@mydomain;77c1f301-85e1-4275-9c539e5927b87d6;4122;hear|speak|talking|floor;0;0;0;0
我需要做的是搜索此输出和 "Conference 10-" 后面的 4 位数字。在这种情况下,我要查找的是 1234。
**我试过的**
我已经尝试了以下所有模式...none 其中满足了我的需求:
print(string.match(input, "10-%d%d%d%d-"));
print(string.match(input, "Conference 10-%d%d%d%d-"));
print(string.match(input, "Conference 10-(%d)-");
print(string.match(input, "Conference 10(\-)(%d));
您需要使用 %
转义连字符,因为 未转义 -
是 Lua 中的惰性量词( -
还有 0 次或多次重复)。
str = "Conference 11-2222-a.b.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound) 176;014802813@mydomain;0182e4e4-193b-4d63-9bef-b597f0655c83;jdo ;014802813;hear|speak|talking|floor;0;0;0;0\n\nConference 10-1234.c.fdf.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound)175;.net/4122@mydomain;77c1f301-85e1-4275-9c539e5927b87d6;4122;hear|speak|talking|floor;0;0;0;0"
print(string.match(str, 'Conference 10%-(%d%d%d%d)') )
^
来自Lua 20.2 – Patterns reference:
Some characters, called magic characters, have special meanings when used in a pattern. The magic characters are
( ) . % + - * ? [ ^ $
The character
%
works as an escape for those magic characters.
使用gsub()
:
print(string.gsub(".*Conference 10%-(%d%d%d%d)%-.*", "%1"));