Ruby StringScanner scan_full用法及代碼示例

StringScanner＃scan_full()：scan_full()是StringScanner類方法，該方法檢查給定的模式是否與當前掃描指針匹配

用法：StringScanner.scan_full()

參數：StringScanner值
圖案
advance_pointer
return_pointer

返回：如果給定的模式與當前掃描指針匹配，則為true，否則返回false

示例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"

輸出：

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

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

示例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"

輸出：

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

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

相關用法

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