Ruby StringScanner scan_full函数

StringScanner#scan_full() : scan_full()是StringScanner类的一个方法，它检查给定的模式是否与当前的扫描指针匹配。

语法。StringScanner.scan_full()

参数。StringScanner值

pattern

advance_pointer

return_pointer

返回：如果给定的模式与当前的扫描指针匹配，则为true，否则返回false。

例子 #1 :

# Ruby code for StringScanner.scan_full() method
  
# loading StringScanner
require 'strscan'
  
# declaring StringScanner 
c = StringScanner.new("Mon Sep 12 2018 14:39")
   
# scan_full() method
c.scan_full(/\w+/, 2, 3)
  
puts "String Scanner result of c.scan_full() form : #{c.pos()}\n\n"
  
  
# scan_full() method
c.scan_full(/\s+/, 4, 8)
  
puts "String Scanner result of c.scan_full() form : #{c.pos()}\n\n"

输出:

String Scanner result of c.scan_full() form : 3

String Scanner result of c.scan_full() form : 4

例子 #2 :

# Ruby code for StringScanner.scan_full() method
  
# loading StringScanner
require 'strscan'
  
# declaring StringScanner 
c = StringScanner.new("h ello geeks")
   
# scan_full() method
c.scan_full(/\w+/, 2, 3)
  
puts "String Scanner result of c.scan_full() form : #{c.pos()}\n\n"
  
  
# scan_full() method
c.scan_full(/\s+/, 4, 8)
  
puts "String Scanner result of c.scan_full() form : #{c.pos()}\n\n"

输出:

String Scanner result of c.scan_full() form : 1

String Scanner result of c.scan_full() form : 2