红宝石 | StringScanner scan_full函数

StringScanner#scan_full() : scan_full()是一个 StringScanner 类方法，用于检查给定模式是否与当前扫描指针匹配

Syntax: StringScanner.scan_full()

Parameter: StringScanner values
pattern
advance_pointer
return_pointer

Return: true if the given pattern is matched from the current scan pointer otherwise return 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"

输出 ：

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"

输出 ：

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

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