1*4882a593Smuzhiyun 2*4882a593SmuzhiyunRuby is copyrighted free software by Yukihiro Matsumoto <matz@netlab.co.jp>. 3*4882a593SmuzhiyunYou can redistribute it and/or modify it under either the terms of the GPL 4*4882a593Smuzhiyun(see COPYING.txt file), or the conditions below: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun 1. You may make and give away verbatim copies of the source form of the 7*4882a593Smuzhiyun software without restriction, provided that you duplicate all of the 8*4882a593Smuzhiyun original copyright notices and associated disclaimers. 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun 2. You may modify your copy of the software in any way, provided that 11*4882a593Smuzhiyun you do at least ONE of the following: 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun a) place your modifications in the Public Domain or otherwise 14*4882a593Smuzhiyun make them Freely Available, such as by posting said 15*4882a593Smuzhiyun modifications to Usenet or an equivalent medium, or by allowing 16*4882a593Smuzhiyun the author to include your modifications in the software. 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun b) use the modified software only within your corporation or 19*4882a593Smuzhiyun organization. 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun c) rename any non-standard executables so the names do not conflict 22*4882a593Smuzhiyun with standard executables, which must also be provided. 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun d) make other distribution arrangements with the author. 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun 3. You may distribute the software in object code or executable 27*4882a593Smuzhiyun form, provided that you do at least ONE of the following: 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun a) distribute the executables and library files of the software, 30*4882a593Smuzhiyun together with instructions (in the manual page or equivalent) 31*4882a593Smuzhiyun on where to get the original distribution. 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun b) accompany the distribution with the machine-readable source of 34*4882a593Smuzhiyun the software. 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun c) give non-standard executables non-standard names, with 37*4882a593Smuzhiyun instructions on where to get the original software distribution. 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun d) make other distribution arrangements with the author. 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun 4. You may modify and include the part of the software into any other 42*4882a593Smuzhiyun software (possibly commercial). But some files in the distribution 43*4882a593Smuzhiyun are not written by the author, so that they are not under this terms. 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun They are gc.c(partly), utils.c(partly), regex.[ch], st.[ch] and some 46*4882a593Smuzhiyun files under the ./missing directory. See each file for the copying 47*4882a593Smuzhiyun condition. 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun 5. The scripts and library files supplied as input to or produced as 50*4882a593Smuzhiyun output from the software do not automatically fall under the 51*4882a593Smuzhiyun copyright of the software, but belong to whomever generated them, 52*4882a593Smuzhiyun and may be sold commercially, and may be aggregated with this 53*4882a593Smuzhiyun software. 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun 6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR 56*4882a593Smuzhiyun IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 57*4882a593Smuzhiyun WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 58*4882a593Smuzhiyun PURPOSE. 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun 61