<html> <head> <title>Egon Animator - String Handling</title> </head> <body> <center> <h1>String Handling</h1> </center> Egon Animator has string support. Strings can be entered as string constants (text surrounded by quotation marks) or as expressions that evaluate to strings. <p> The following Scheme functions can be used for strings: <dl> <dt><b>(string-append s1 s2...)</b> <dd>Append the string arguments and return the resulting string. <dt><b>(substring str start end)</b> <dd>Returns the part of str between start and end. <dt><b>(string-search token str)</b> <dd>Returns the index of token in str. <dt><b>(string-trim str)</b> <dd>Removes whitespace from both ends of str. <dt><b>(string-trim-left str)</b> <dd>Removes whitespace from the beginning of str. <dt><b>(string-trim-right str)</b> <dd>Removes whitespace from the end of str. <dt><b>(string-upcase str)</b> <dd>Converts all characters in str to upper case. <dt><b>(string-downcase str)</b> <dd>Converts all characters in str to lower case. </dl> <hr> <address>Ulric Eriksson - February 1997 - ulric@siag.nu</address> </body> </html>
