1da2e3ebdSchin /*********************************************************************** 2da2e3ebdSchin * * 3da2e3ebdSchin * This software is part of the ast package * 4*b30d1939SAndy Fiddaman * Copyright (c) 1985-2011 AT&T Intellectual Property * 5da2e3ebdSchin * and is licensed under the * 6*b30d1939SAndy Fiddaman * Eclipse Public License, Version 1.0 * 77c2fbfb3SApril Chin * by AT&T Intellectual Property * 8da2e3ebdSchin * * 9da2e3ebdSchin * A copy of the License is available at * 10*b30d1939SAndy Fiddaman * http://www.eclipse.org/org/documents/epl-v10.html * 11*b30d1939SAndy Fiddaman * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12da2e3ebdSchin * * 13da2e3ebdSchin * Information and Software Systems Research * 14da2e3ebdSchin * AT&T Research * 15da2e3ebdSchin * Florham Park NJ * 16da2e3ebdSchin * * 17da2e3ebdSchin * Glenn Fowler <gsf@research.att.com> * 18da2e3ebdSchin * David Korn <dgk@research.att.com> * 19da2e3ebdSchin * Phong Vo <kpv@research.att.com> * 20da2e3ebdSchin * * 21da2e3ebdSchin ***********************************************************************/ 22da2e3ebdSchin #pragma prototyped 23da2e3ebdSchin /* 24da2e3ebdSchin * Glenn Fowler 25da2e3ebdSchin * AT&T Research 26da2e3ebdSchin * 27da2e3ebdSchin * convert \X character constants in s in place 28da2e3ebdSchin * the length of the converted s is returned (may have embedded \0's) 29*b30d1939SAndy Fiddaman * wide chars absent locale guidance default to UTF-8 30*b30d1939SAndy Fiddaman * strexp() FMT_EXP_* flags passed to chrexp() for selective conversion 31da2e3ebdSchin */ 32da2e3ebdSchin 33da2e3ebdSchin #include <ast.h> 34da2e3ebdSchin 35da2e3ebdSchin int strexp(register char * s,int flags)36*b30d1939SAndy Fiddamanstrexp(register char* s, int flags) 37da2e3ebdSchin { 38da2e3ebdSchin register char* t; 39da2e3ebdSchin register unsigned int c; 40da2e3ebdSchin char* b; 41da2e3ebdSchin char* e; 42*b30d1939SAndy Fiddaman int w; 43da2e3ebdSchin 44da2e3ebdSchin b = t = s; 45da2e3ebdSchin while (c = *s++) 46da2e3ebdSchin { 47da2e3ebdSchin if (c == '\\') 48da2e3ebdSchin { 49*b30d1939SAndy Fiddaman c = chrexp(s - 1, &e, &w, flags); 50da2e3ebdSchin s = e; 51*b30d1939SAndy Fiddaman if (w) 52da2e3ebdSchin { 53*b30d1939SAndy Fiddaman t += mbwide() ? mbconv(t, c) : wc2utf8(t, c); 54da2e3ebdSchin continue; 55da2e3ebdSchin } 56da2e3ebdSchin } 57da2e3ebdSchin *t++ = c; 58da2e3ebdSchin } 59da2e3ebdSchin *t = 0; 60da2e3ebdSchin return t - b; 61da2e3ebdSchin } 62*b30d1939SAndy Fiddaman 63*b30d1939SAndy Fiddaman int stresc(register char * s)64*b30d1939SAndy Fiddamanstresc(register char* s) 65*b30d1939SAndy Fiddaman { 66*b30d1939SAndy Fiddaman return strexp(s, FMT_EXP_CHAR|FMT_EXP_LINE|FMT_EXP_WIDE); 67*b30d1939SAndy Fiddaman } 68