1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2008 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 24 #include <ast.h> 25 #include <ctype.h> 26 27 #define IDENT 01 28 #define USAGE 02 29 30 /* 31 * format what(1) and/or ident(1) string a 32 */ 33 34 char* 35 fmtident(const char* a) 36 { 37 register char* s = (char*)a; 38 register char* t; 39 char* buf; 40 int i; 41 42 i = 0; 43 for (;;) 44 { 45 while (isspace(*s)) 46 s++; 47 if (s[0] == '[') 48 { 49 while (*++s && *s != '\n'); 50 i |= USAGE; 51 } 52 else if (s[0] == '@' && s[1] == '(' && s[2] == '#' && s[3] == ')') 53 s += 4; 54 else if (s[0] == '$' && s[1] == 'I' && s[2] == 'd' && s[3] == ':' && isspace(s[4])) 55 { 56 s += 5; 57 i |= IDENT; 58 } 59 else 60 break; 61 } 62 if (i) 63 { 64 i &= IDENT; 65 for (t = s; isprint(*t) && *t != '\n'; t++) 66 if (i && t[0] == ' ' && t[1] == '$') 67 break; 68 while (t > s && isspace(t[-1])) 69 t--; 70 i = t - s; 71 buf = fmtbuf(i + 1); 72 memcpy(buf, s, i); 73 s = buf; 74 s[i] = 0; 75 } 76 return s; 77 } 78