I'm trying to split street name, house number, and box number from a String.
Let's say the string is "SomeStreet 59A"
For this case I already have a solution with regex. I'm using this function:

address.split(/([0-9]+)/) //output ["SomeStreet","59","A"]

The problem I'm having now, is that some addresses have weird formats. Meaning, the above method does not fit for strings like:

"Somestreet 59-65" // output ["SomeStreet", "59", "-", "65"] Not good

My question for this case is, how to group the numbers to get this desired output:

["Somestreet", "59-65"]

Another weird example is:

"6' SomeStreet 59" // here "6' Somestreet" is the exact street-name.

Expected output: ["6' Somestreet", "59"]

"6' Somestreet 324/326 A/1" // Example with box number   

Expected output: ["6' Somestreet", "324/326", "A/1"]

Bear in mind that this has to be in one executable function to loop through all of the addresses that I have.

I'm trying to split street name, house number, and box number from a String.
Let's say the string is "SomeStreet 59A"
For this case I already have a solution with regex. I'm using this function:

address.split(/([0-9]+)/) //output ["SomeStreet","59","A"]

The problem I'm having now, is that some addresses have weird formats. Meaning, the above method does not fit for strings like:

"Somestreet 59-65" // output ["SomeStreet", "59", "-", "65"] Not good

My question for this case is, how to group the numbers to get this desired output:

["Somestreet", "59-65"]

Another weird example is:

"6' SomeStreet 59" // here "6' Somestreet" is the exact street-name.

Expected output: ["6' Somestreet", "59"]

"6' Somestreet 324/326 A/1" // Example with box number   

Expected output: ["6' Somestreet", "324/326", "A/1"]

Bear in mind that this has to be in one executable function to loop through all of the addresses that I have.

• javascript
• regex

• 4 There are so many different forms of street addresses, trying to e up with a simple function to parse them is futile. – Barmar Commented Mar 30, 2021 at 8:19
• 1 Try .split(/\s*(\d+(?!['’\d])(?:-\d+)?)/) (see demo) if all acceptable formats are those you listed in the question. – Wiktor Stribiżew Commented Mar 30, 2021 at 8:19

3 Answers 3

To support all string formats listed in the question, you can use

.match(/^(.*?)\s+(\d+(?:[-.\/]\d+)?)(?:\s*(\S.*))?$/)
.match(/^(.*)\s+(\d+(?:[-.\/]\d+)?)(?:\s*(\S.*))?$/)

See the regex demo.

Details:

• ^ - start of string
• (.*?) - Group 1: any zero or more chars other than line break chars, as few as possible (if you need to match the last number as Group 2, the Number, you need to use .*, a greedy variant)
• \s+ - one or more whitespaces
• (\d+(?:[-.\/]\d+)?) - Group 2: one or more digits optionally followed with -/.// and then one or more digits
• (?:\s*(\S.*))? - an optional occurrence of zero or more whitespaces and - Group 3 - a non-whitespace char and the rest of the string
• $ - end of string.

See a JavaScript demo:

const texts = ['SomeStreet 59A','Somestreet 59-65',"6' SomeStreet 59", 'Somestreet 1.1', 'Somestreet 65 A/1', "6' Somestreet 324/326 A/1"];
const rx = /^(.*?)\s+(\d+(?:[-.\/]\d+)?)(?:\s*(\S.*))?$/;
for (const text of texts) {
  const [_, street, number, box] = text.match(rx);
  console.log(text, '=>', {"Street":street, "Number":number, "Box":box});
}

If you don't mind a bit of string trimming afterwards, here's a solution:

.split(/(?= \d|\D+$)/)

or to account also for 65 A/1 or 324/326 A/1

.split(/(?= \d|\D+$|(?<!\D) )/)

Regex101. demo

[
  "Some Street 59A",
  "Some Street 59-69",
  "Some Street 1.1",
  "6' Street 45b",
  "6' Some street 324/326 A/1",
  "Some Street 65 A/1",
  "42th Stack ave. 59-69",
].forEach(str => console.log( str.split(/(?= \d|\D+$|(?<!\D) )/) ));

If you want to keep the number i.e: 59A as a whole, here's another simple solution:

.split(/(?= \d| [\w\d/]+$)/);

Regex101. demo

[
  "Some Street 59A",
  "Some Street 59-69",
  "Some Street 1.1",
  "6' Street 45b",
  "6' Some street 324/326 A/1",
  "Some Street 65 A/1",
  "42th Stack ave. 59-69",
].forEach(str => console.log( str.split(/(?= \d| [\w\d/]+$)/) ));

<xsl:stylesheet xmlns:xsl="http://www.w3/1999/XSL/Transform" version="1.0">
    <!-- Template for matching the root element -->
        <xsl:template match="/">
    <!-- Call the split-address template with the full address -->
            <xsl:call-template name="split-address">
                <xsl:with-param name="address" select="/root/address" />
            </xsl:call-template>
        </xsl:template>

    <!-- Template to split the address into lines -->
        <xsl:template name="split-address">
                <xsl:param name="address" />
                <xsl:choose>
    <!-- If the length of the address is less than or equal to 35 characters, output it directly -->
                    <xsl:when test="string-length($address) &lt;= 35">
                        <xsl:value-of select="$address" />
                    </xsl:when>
      <!-- Otherwise, find the last space before the 35th character and split the line -->
                    <xsl:otherwise>
        <!-- Get the substring of the address up to the 35th character -->
                        <xsl:variable name="substring" select="substring($address, 1, 35)" />
        <!-- Find the last space before the 35th character -->
                        <xsl:variable name="split-pos" select="string-length(substring-before($substring, ' '))" />
        <!-- Output the first part of the address -->
                        <xsl:value-of select="substring($address, 1, $split-pos)" />
        <!-- Add a line break -->
                        <xsl:text>&#10;</xsl:text>
        <!-- Recursively call the template with the remaining address -->
                        <xsl:call-template name="split-address">
                            <xsl:with-param name="address" select="substring-after($address, substring($address, 1, $split-pos))" />
                        </xsl:call-template>
                    </xsl:otherwise>
                </xsl:choose>
        </xsl:template>
</xsl:stylesheet>