1*4887Schin /*********************************************************************** 2*4887Schin * * 3*4887Schin * This software is part of the ast package * 4*4887Schin * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5*4887Schin * and is licensed under the * 6*4887Schin * Common Public License, Version 1.0 * 7*4887Schin * by AT&T Knowledge Ventures * 8*4887Schin * * 9*4887Schin * A copy of the License is available at * 10*4887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 11*4887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12*4887Schin * * 13*4887Schin * Information and Software Systems Research * 14*4887Schin * AT&T Research * 15*4887Schin * Florham Park NJ * 16*4887Schin * * 17*4887Schin * Glenn Fowler <gsf@research.att.com> * 18*4887Schin * David Korn <dgk@research.att.com> * 19*4887Schin * Phong Vo <kpv@research.att.com> * 20*4887Schin * * 21*4887Schin ***********************************************************************/ 22*4887Schin #pragma prototyped 23*4887Schin /* 24*4887Schin * Glenn Fowler 25*4887Schin * AT&T Research 26*4887Schin * 27*4887Schin * escape optget() special chars in s and write to sp 28*4887Schin * esc == '?' or ':' also escaped 29*4887Schin */ 30*4887Schin 31*4887Schin #include <optlib.h> 32*4887Schin #include <ctype.h> 33*4887Schin 34*4887Schin int 35*4887Schin optesc(Sfio_t* sp, register const char* s, int esc) 36*4887Schin { 37*4887Schin register const char* m; 38*4887Schin register int c; 39*4887Schin 40*4887Schin if (*s == '[' && *(s + 1) == '+' && *(s + 2) == '?') 41*4887Schin { 42*4887Schin c = strlen(s); 43*4887Schin if (s[c - 1] == ']') 44*4887Schin { 45*4887Schin sfprintf(sp, "%-.*s", c - 4, s + 3); 46*4887Schin return 0; 47*4887Schin } 48*4887Schin } 49*4887Schin if (esc != '?' && esc != ':') 50*4887Schin esc = 0; 51*4887Schin while (c = *s++) 52*4887Schin { 53*4887Schin if (isalnum(c)) 54*4887Schin { 55*4887Schin for (m = s - 1; isalnum(*s); s++); 56*4887Schin if (isalpha(c) && *s == '(' && isdigit(*(s + 1)) && *(s + 2) == ')') 57*4887Schin { 58*4887Schin sfputc(sp, '\b'); 59*4887Schin sfwrite(sp, m, s - m); 60*4887Schin sfputc(sp, '\b'); 61*4887Schin sfwrite(sp, s, 3); 62*4887Schin s += 3; 63*4887Schin } 64*4887Schin else 65*4887Schin sfwrite(sp, m, s - m); 66*4887Schin } 67*4887Schin else if (c == '-' && *s == '-' || c == '<') 68*4887Schin { 69*4887Schin m = s - 1; 70*4887Schin if (c == '-') 71*4887Schin s++; 72*4887Schin else if (*s == '/') 73*4887Schin s++; 74*4887Schin while (isalnum(*s)) 75*4887Schin s++; 76*4887Schin if (c == '<' && *s == '>' || isspace(*s) || *s == 0 || *s == '=' || *s == ':' || *s == ';' || *s == '.' || *s == ',') 77*4887Schin { 78*4887Schin sfputc(sp, '\b'); 79*4887Schin sfwrite(sp, m, s - m); 80*4887Schin sfputc(sp, '\b'); 81*4887Schin } 82*4887Schin else 83*4887Schin sfwrite(sp, m, s - m); 84*4887Schin } 85*4887Schin else 86*4887Schin { 87*4887Schin if (c == ']' || c == esc) 88*4887Schin sfputc(sp, c); 89*4887Schin sfputc(sp, c); 90*4887Schin } 91*4887Schin } 92*4887Schin return 0; 93*4887Schin } 94