Freemaker WordStr函數的正則表達式應用。本站提示廣大學習愛好者：（Freemaker WordStr函數的正則表達式應用）文章只能為提供參考，不一定能成為您想要的結果。以下是Freemaker WordStr函數的正則表達式應用正文
replace(param1,param2,param3)
param1 正則表達式；param2 將婚配的字符調換成指定字符；param3 形式
param3 參數以下
形式 i r m s c f replace 支撐 支撐 只和r 組合 只和r 組合 只和r 組合 支撐
形式說明：
i: Case insensitive: 疏忽年夜小寫
f: First only. That is, replace/find/etc. only the first occurrence of something.
r: The substring to find is a regular expression.尺度正則表達式（http://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html ）
m: Multi-line mode for regular expressions. In multi-line mode the expressions ^ and $ match just after or just before, respectively, a line terminator or the end of the string. By default these expressions only match at the beginning and the end of the entire string. Note that ^ and $ doesn't match the line-break character itself.
s: Enables dot-all mode for regular expressions (same as Perl singe-line mode). In dot-all mode, the expression . matches any character, including a line terminator. By default this expression does not match line terminators.
c: Permits whitespace and comments in regular expressions.在正則表達式中許可空格和正文。
典范以下：
<#assign s = 'foo bAr baar'>
${s?replace('ba', 'XY')}
i: ${s?replace('ba', 'XY', 'i')}
if: ${s?replace('ba', 'XY', 'if')}
r: ${s?replace('ba*', 'XY', 'r')}
ri: ${s?replace('ba*', 'XY', 'ri')}
rif: ${s?replace('ba*', 'XY', 'rif')}
輸入成果：
foo bAr XYar
i: foo XYr XYar
if: foo XYr baar
r: foo XYAr XYr
ri: foo XYr XYr
rif: foo XYr baar
更多典范：
原文：str = 2積分兌換30元優惠券
${str?replace('\\b\\d+積分','','r')}
輸入：兌換30元優惠券
ps：freemarker的replace功效
調換字符串 replace
${s?replace(‘ba', ‘XY' )}
${s?replace(‘ba', ‘XY' , ‘規矩參數')}
將s裡的一切的ba調換成xy 規矩參數包括: i r m s c f 詳細寄義以下:
· i: 年夜小寫不辨別.
· f: 只調換第一個湧現被調換字符串的字符串
· r: XY是正則表達式
· m: Multi-line mode for regular expressions. In multi-line mode the expressions ^ and $ match just after or just before, respectively, a line terminator or the end of the string. By default these expressions only match at the beginning and the end of the entire string.
· s: Enables dotall mode for regular expressions (same as Perl singe-line mode). In dotall mode, the expression . matches any character, including a line terminator. By default this expression does not match line terminators.
· c: Permits whitespace and comments in regular expressions.
