NetLogo string extension

An unofficial extension for providing handy string-related primitives in NetLogo.

Download

see https://github.com/NetLogo/String-Extension/releases

Using

The following reporters are provided:

• explode -- turns a string into a list (of one-character strings)
• from-file -- read an entire file into a string with one command
• from-list -- turns a list into a string
• hash-code
• md5 -- generate the MD5 hash for a string
• rex-match? -- search in strings using standard regular expressions
• rex-replace-first, rex-replace-all, rex-split
• starts-with?, ends-with? -- match a string against the start or end of another string
• trim -- removes initial and trailing whitespace
• upper-case, lower-case -- alter the letter case of strings
• split-on -- reports a list formed by splitting string using the string-delimiter

Building

To build the source code, run sbt compile.

To run the tests in tests.txt, add the extension, go to the NetLogo directory, and run sbt 'te string'.

To build a release package, run sbt package.

Wish list

Ideas for possible additional primitives:

• ascii-code <character> -- returns the ASCII index of the given character (the first character of the string), or 0 for non-ASCII characters
• from-ascii <integer> -- returns the ASCII character corresponding to the given small integer index
• last-index-of <needle> <haystack> -- reports the index of the last occurrence of needle in haystack, or false, if needle does not occur
• position-regex <regex-needle> <haystack>

Credits

The string extension was written by James Steiner of turtleZERO.com.

Terms of Use

The NetLogo string extension is in the public domain. To the extent possible under law, James Steiner has waived all copyright and related or neighboring rights.