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Chapter 10: Regular expressions
Book Examples
Example 10-1. A simple type with a pattern
<xsd:simpleType name="ProdNumType">
<xsd:restriction base="xsd:string">
<xsd:pattern value="\d{3}-[A-Z]{2}|\d{7}"/>
</xsd:restriction>
</xsd:simpleType>
Table 10-1. Using normal characters
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Regular expression
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Matching strings
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Non-matching strings
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a
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a
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b
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a|b|c
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a, b, c
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abc
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Table 10-3. Using character entity references
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Regular expression
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Matching strings
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Non-matching strings
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a z
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a z
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az
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a *z
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az, a z, a z, a z
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a *z
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PB&J
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PB&J
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PBJ
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Table 10-5. Using single-character escapes
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Regular expression
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Matching strings
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Non-matching strings
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1+2
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12, 112, 1112
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1+2
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1\+2
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1+2
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12, 1\+2
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1\++2
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1+2, 1++2, 1+++2
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12
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Table 10-7. Using multi-character escapes
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Regular expression
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Matching strings
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Non-matching strings
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a\dz
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a0z, a1z
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az, adz, a12z
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a.z
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a1z, axz
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az, axxz
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Table 10-9. Using category escapes
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Regular expression
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Matching strings
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Non-matching strings
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\p{Lu}
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A, B, C
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a, b, c, 1, 2, 3
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\P{Lu}
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a, b, c, 1, 2, 3
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A, B, C
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\p{Nd}
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1, 2, 3
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a, b, c, A, B, C
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\P{Nd}
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a, b, c, A, B, C
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1, 2, 3
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Table 10-11. Using block escapes
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Regular expression
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Matching strings
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Non-matching strings
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\p{IsBasicLatin}
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a, b, c
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â, ß, ç
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\P{IsBasicLatin}
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â, ß, ç
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a, b, c
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Table 10-12. Specifying a list of characters
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Regular expression
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Matching strings
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Non-matching strings
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[abc]z
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az, bz, cz
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abz, z, abcz, abc
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[\p{Lu}\d]z
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Az, Bz, 1z, 2z
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az, bz, cz, A1z
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Table 10-13. Specifying a range
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Regular expression
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Matching strings
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Non-matching strings
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[a-f]z
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az, fz
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z, abz, gz, hz
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[0-9a-fA-F]z
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1z, az, Bz
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z, gz, Gz, 1aBz
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[ -]z
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az, bz, cz
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âz
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Table 10-14. Combining characters and ranges
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Regular expression
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Matching strings
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Non-matching strings
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[0-9pqr]z
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1z, 2z, pz, rz
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cz,dz, 0sz
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[p-r\d]z
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1z, 2z, pz, rz
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cz,dz, 0sz
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Table 10-15. Negating a character class expression
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Regular expression
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Matching strings
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Non-matching strings
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[^ab]z
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cz, dz, 1z
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az, bz
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[^\d]z
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az, bz, cz
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1z, 2z, 3z
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[^1-3a-c]z
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dz, 4z
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1z, az
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Table 10-16. Subtracting from a character class expression
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Regular expression
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Matching strings
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Non-matching strings
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[a-z-[c]]z
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az, dz, ez, zz
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cz
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[a-z-[cd]]z
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az, ez, zz
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cz, dz
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[a-z-[c-e]]z
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az, zz
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cz, dz, ez, 1z
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[^a-z-[123]]z
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4z
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az, 3z, zz
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Table 10-17. Using parenthesized regular expressions
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Regular expression
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Matching strings
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Non-matching strings
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(a|b)z
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az, bz
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abz, z
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(ab)*z
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z, abz, ababz
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az, bz, aabbz
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(a+b)*z
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z, abz, aabz, abaabz
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az, abbz
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([a-f]x)*z
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z, axz, bxfxfxz
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gxz, xz
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(\db)*z
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z, 1bz, 1b2bz
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1z, bz
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Table 10-19. Using quantifiers
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Regular expression
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Matching strings
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Non-matching strings
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abz
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abz
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az, abbz
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ab?z
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az, abz
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abbz
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ab*z
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az, abz, abbz, abbbz, ...
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a1z
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ab+z
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abz, abbz, abbbz, ...
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az
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ab{2}z
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abbz
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abz, abbbz
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ab{2,}z
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abbz, abbbz, abbbbz, ...
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az, abz
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ab{2,3}z
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abbz, abbbz
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az, abz, abbbbz
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a[b-d]+z
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abz, abdz, addbccdddz
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az, aez, abez
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a\p{Nd}+z
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a1z, a11z, a234z
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az, abcz
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a(bc)+z
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abcz, abcbcz, abcbcbcz, ...
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az, abz
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