Strings
Substrings
| fn:substring | A substring based on a starting point and optional length |
| fn:substring-before | The substring before the first occurrence of a delimiter |
| functx:substring-before-if-contains | Performs substring-before, returning the entire string if it does not contain the delimiter |
| functx:substring-before-last | The substring before the last occurrence of a delimiter |
| functx:substring-before-last-match | The substring after the first text that matches a regex |
| functx:substring-before-match | The substring before the last text that matches a regex |
| fn:substring-after | The substring after the first occurrence of a delimiter |
| functx:substring-after-if-contains | Performs substring-after, returning the entire string if it does not contain the delimiter |
| functx:substring-after-last | The substring after the last occurrence of a delimiter |
| functx:substring-after-last-match | The substring after the last text that matches a regex |
| functx:substring-after-match | The substring after the first text that matches a regex |
Regular Expressions
| fn:matches | Whether a string matches a regular expression |
| functx:substring-before-match | The substring before the last text that matches a regex |
| functx:substring-before-last-match | The substring after the first text that matches a regex |
| functx:substring-after-last-match | The substring after the last text that matches a regex |
| functx:substring-after-match | The substring after the first text that matches a regex |
| functx:index-of-match-first | The first position of a matching substring |
| functx:number-of-matches | The number of regions that match a pattern |
| fn:regex-group | The current group |
Indexes
| functx:index-of-string | The position(s) of a substring |
| functx:index-of-string-first | The first position of a substring |
| functx:index-of-string-last | The last position of a substring |
| functx:index-of-match-first | The first position of a matching substring |
Contains
| fn:contains | Whether one string contains another |
| functx:contains-word | Whether one string contains another, as a separate word |
| functx:contains-case-insensitive | Whether one string contains another, without regard to case |
| functx:contains-any-of | Whether a string contains any of a sequence of strings |
| fn:starts-with | Whether one string starts with another |
| fn:ends-with | Whether one string ends with another |
Concatenating and Splitting
| fn:concat | Concatenates two or more strings |
| fn:string-join | Concatenates a sequence of strings using an optional separator |
| functx:insert-string | Inserts a string at a specified position |
| fn:tokenize | Splits a string based on a regular expression |
| functx:chars | Converts a string to a sequence of characters |
| functx:lines | Split a string into separate lines |
| fn:codepoints-to-string | Creates a string from a sequence of Unicode code points |
| fn:string-to-codepoints | Creates a sequence of Unicode code points from a string |
Replacing
| fn:replace | Replaces parts of a string that match a regular expression |
| functx:replace-first | Replaces the first match of a pattern |
| functx:replace-beginning | Replaces the beginning of a string, up to a matched pattern |
| functx:replace-multi | Performs multiple replacements, using pairs of replace parameters |
| functx:escape-for-regex | Escapes regex special characters |
| functx:reverse-string | Reverses the order of characters |
| fn:translate | Replaces individual characters |
Comparing
| fn:compare | Compares two strings |
| functx:max-string | The maximum of a sequence of values, treating them like strings |
| functx:min-string | The minimum of a sequence of values, treating them like strings |
| functx:min-non-empty-string | The minimum of a sequence of strings, ignoring "empty" values |
| fn:codepoint-equal | Whether two strings have the same Unicode code points |
Trimming and Padding
| fn:normalize-space | Normalizes whitespace |
| functx:trim | Trims leading and trailing whitespace |
| functx:left-trim | Trims leading whitespace |
| functx:right-trim | Trims trailing whitespace |
| functx:pad-string-to-length | Pads a string to a desired length |
| functx:repeat-string | Repeats a string a given number of times |
Capitalization
| fn:lower-case | Converts to lower case |
| fn:upper-case | Converts to upper case |
| functx:capitalize-first | Capitalizes the first character of a string |
| functx:camel-case-to-words | Turns a camelCase string into space-separated words |
| functx:words-to-camel-case | Turns a string of words into camelCase |
| functx:format-as-title-en | Moves title words like "the" and "a" to the end of strings |
Statistics
| fn:string-length | The length of a string |
| functx:line-count | The number of lines |
| functx:max-line-length | The maximum line length |
| functx:word-count | The number of words |
Internationalization
| fn:default-collation | The default collation |
| fn:lang | Tests the language of a node |
| fn:normalize-unicode | Normalizes according to a Unicode normalization form |
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