Make format-number more powerful.

Source: Internet
Author: User
Tags xsl xslt

The format-number () function of XSLT is really powerful in formatting numbers. Simply specifying a format string can format numbers into any desired format. However, a problem occurs recently. If a number is formatted as a non-numeric string, the output result is a nan string, what I want is to display the "-" character. Before formatting, do you need to determine whether it is Nan? The condition-based judgment Statement of XSLT is too troublesome. It is very complicated to judge every formatting. There is no other way. I checked www.w3cshool.com, And the <XSL: decimal-format> element matches the format-number.

<XSL: decimal-format name = "name" Decimal-separator = "char" grouping-separator = "char" infinity = "string" minus-Sign = "char" Nan = "string" percent = "char" digit = "char"
Per-Mille = "char" zero-digit = "char" pattern-separator = "char"/>

<XSL: decimal-format> defines some characters used to convert a number into a string using the format-number () function. Use the <XSL: decimal-format> element to modify the preceding special characters. For example, in Europe, a comma is used to indicate the decimal point. The <XSL: decimal-format> element can be used.

 

In addition to setting a global format, you can also define an <XSL: decimal-format> element with the name attribute. The format-number () function can call a specific element through name, the format-number call in other places is not affected.

 

The following describes attributes in detail.

Attribute Value Description
Name String

Optional. Specifies the name of the format. If this attribute is set, the format-number () function can load a specific format through name. If this attribute is not specified, the format is used as the default format for all format-numbers.

For example:
<XSL: decimal-format name = "Euro" digit = "D"/>
<XSL: value-of select = 'format-number (12.033, "dd.0000", "Euro") '/>
<Br/>
<XSL: value-of select = 'format-number (12.033, "#. 0000") '/>

Output:
12.033
12.033

Decimal-separator Char

Optional. Indicates the decimal point. The default value is "."

 

For example:
<XSL: decimal-format Decimal-separator = ","/>
<XSL: value-of select = 'format-number (12.033, "000,000") '/>

Output:
012,033

The comma here is the decimal point.

Grouping-separator Char

Optional. Specify the thousands separator. The default value is ","

 

For example:
<XSL: decimal-format grouping-separator = "*"/>
<XSL: value-of select = 'format-number (1234567890, "#########") '/>

Output:
1*234*567*890

Infinity String

Optional. Indicates an infinite string. The default value is "infinity"

 

For example:
<XSL: decimal-format infinity = "infinity"/>
<XSL: value-of select = 'format-number (1 Div 0, "0.0") '/>

Output:
Infinity

Minus-sign Char

Optional. Specifies the negative character. The default value is "-"

 

For example:
<XSL: decimal-format minus-Sign = "+"/>
<XSL: value-of select = 'format-number (-102, "0.0") '/>

Output:
+ 102.0

Do you still need the ABS function? convert the output directly.

Nan String

Optional. Specifies a non-numeric string. The default value is "Nan"

 

For example:
<XSL: decimal-format Nan = "non-numeric"/>
<XSL: value-of select = 'format-number (a, "0.0") '/>

Output:
Non-numeric value

Percent Char

Optional. Percent sign. The default value is "%"

 

For example:
<XSL: decimal-format percent = "^"/>
<XSL: value-of select = 'format-number (12, "0.0 ^") '/>

Output:
1200.0 ^

Per-Mille Char

Optional. Specify a semicolon. The default value is "‰"

 

For example:
<XSL: decimal-format per-Mille = "^"/>
<XSL: value-of select = 'format-number (12, "0.0 ^") '/>

Output:
12000.0 ^

Zero-digit Char

Optional. Specifies a string that represents the number 0. The default value is "0"

 

For example:
<XSL: decimal-format zero-digit = "2"/>
<XSL: value-of select = 'format-number (123, "#. #") '/>

Output:
345

Digit Char

Optional. A number is required for the character in the specified format. The default value is #

 

For example:
<XSL: decimal-format digit = "D"/>
<XSL: value-of select = 'format-number (12.3, "D. D") '/>

Output:
12.3

Pattern-separator Char

Optional. The delimiter of the positive and negative seed modes in the specified format. The default value is ";"

 

For example:
<XSL: decimal-format pattern-separator = ";"/>
<XSL: value-of select = 'format-number (123, "-000; + 000") '/>
<XSL: value-of select = 'format-number (-123, "-000; + 000") '/>

Output:
-123
+ 123

Char in the "value" column in the preceding table indicates that the attribute is a character, and string indicates that the attribute is a string. With the <XSL: decimal-format> element, will it still fall into the quagmire of Concatenated strings?

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