我有一个String,其中包含一些格式化的内容,每行后面都有LineFeed
。我想格式化该变量的内容,以限制每行不超过80个字符。
有人可以在Groovy中帮我解决这个问题吗?
出于测试目的,我将内容复制到文件中
String fileContents = new File('E://Projects//temp//license').text
println fileContents
fileContents内容或控制台输出
List of connectivities are:
Valid [Metadata Exchange for Microsoft Visio]
Valid [Metadata Exchange for Microstrategy]
Valid [Metadata Exchange for Microsoft SQL Server Reporting Services and Analysis Services]
Valid [Metadata Exchange for Netezza]
Valid [Metadata Exchange for Oracle]
Valid [Metadata Exchange for Oracle BI Enterprise Edition]
Valid [Metadata Exchange for Oracle Designer]
Command ran successfully
更新
这是我在tim_yates回答后使用的内容
def es=lic.entrySet()
xml.licInfo() {
int i=0
es.each{
if(!it.key.contains("failed with error"))
{
String val=new String(it.value)
license(name:it.key,value:trimOutput(val),assignedTo:resultRows[i++])
}
}
}
def trimOutput(text)
{
text=text.tokenize( '\n' )*.toList()*.collate(90)*.collect { it.join() }.flatten().join( '\n' )
text
}
但是给了我以下例外
Exception in thread "main" groovy.lang.MissingMethodException: No signature of method: java.util.ArrayList.collate() is applicable for argument types: (java.lang.Integer) values: [90]
Possible solutions: clone(), collect(groovy.lang.Closure), collect(groovy.lang.Closure), clear(), clear(), clear()
更新更新(打印机的控制台输出)
[license_all =Edition: BAAC Standard
Software Version: 6.5
Distributed by: ABC
Issued on: 2012-Feb-06
Validity period: Non-Expiry
Serial number: 210502
Deployment level: Production
List of supported platforms are:
[All operating systems] is authorized for [100] logical CPUs
Number of authorized repository instances: 100
Number of authorized CAL usage count: 100
List of connectivities are:
Valid [Metadata Exchange for Microsoft SQL Server Reporting Services and Analysis Services]
Valid [Metadata Exchange for Netezza]
Valid [Metadata Exchange for Oracle]
Valid [Metadata Exchange for Oracle BI Enterprise Edition]
Valid [Metadata Exchange for Oracle Designer]
Valid [Metadata Exchange for Oracle Warehouse Builder]
Valid [Metadata Exchange for Popkin System Architect]
Valid [Metadata Exchange for SAP R/3]
Valid [Metadata Exchange for Select SE]
Valid [Metadata Exchange for Silverrun - RDM]
Valid [Metadata Exchange for SQL Server]
Valid [Metadata Exchange for Sybase ASE]
Valid [Metadata Exchange for Sybase PowerDesigner]
Valid [Metadata Exchange for Teradata]
Command ran successfully.
]
答案 0 :(得分:2)
这里有两种不同的方法,取决于你想用80多个字符长度的行做什么
def text = '''List of connectivities are:
| Valid [Metadata Exchange for Microsoft Visio]
| Valid [Metadata Exchange for Microstrategy]
| Valid [Metadata Exchange for Microsoft SQL Server Reporting Services and Analysis Services]
| Valid [Metadata Exchange for Netezza]
| Valid [Metadata Exchange for Oracle]
| Valid [Metadata Exchange for Oracle BI Enterprise Edition]
| Valid [Metadata Exchange for Oracle Designer]
|
|Command ran successfully'''.stripMargin()
// Strip everything after 80 chars
println text.tokenize( '\n' )*. // Split the lines based on newline character
take( 80 ). // Only take upto the first 80 chars of each String
join( '\n' ) // And join them back together with '\n' between them
// Add newline if line is over 80 chars
println text.tokenize( '\n' )*. // Split the lines based on newline character
toList()*. // Convert each String to a list of chars
collate(80)*. // Split these into multiple lists, 80 chars long
collect { it.join() }. // Join all of the chars back into strings
flatten(). // Flatten the multiple lists of Strings into one
join( '\n' ) // And join these strings back together with '\n' between them
编辑后,这是否有效:
String trimOutput( String input, int width=90 ) {
input.tokenize( '\n' )*.
toList()*.
collate( width )*.
collect { it.join() }.
flatten().
join( '\n' )
}
xml.licInfo {
lic.eachWithIndex { key, value, idx ->
// Shouldn't this be 'value', not 'key'?
if( !key.contains( 'failed with error' ) ) {
license( name: key, assignedTo: idx, trimOutput( value ) )
}
}
}
我认为您需要更改为检查错误'在lic map的值中,不是你当前的密钥,但我无法确定)
如果您遇到groovy 1.8.1,则没有collate
方法,因此您必须roll your own:
List.metaClass.collate = { size ->
def rslt = delegate.inject( [ [] ] ) { ret, elem ->
( ret.last() << elem ).size() >= size ? ret << [] : ret
}
!rslt.last() ? rslt[ 0..-2 ] : rslt
}
答案 1 :(得分:1)
另一种使用注入的解决方案:
String trimOutput( String input, int width=90 ) {
input.tokenize('\n')*.inject('') { output, ch ->
output.size() % (width + 1) ?
(output + ch) :
(output + '\n' + ch)
}.join('\n')
}
或者注入和整理的组合:
String trimOutput( String input, int width=90 ) {
input.tokenize('\n').inject([]) { lines, line ->
lines + line.toList().collate(width)*.join()
}.join('\n')
}