1*40ef9009SDavid du Colombier /* 2*40ef9009SDavid du Colombier * The authors of this software are Rob Pike and Ken Thompson. 3*40ef9009SDavid du Colombier * Copyright (c) 2002 by Lucent Technologies. 4*40ef9009SDavid du Colombier * Permission to use, copy, modify, and distribute this software for any 5*40ef9009SDavid du Colombier * purpose without fee is hereby granted, provided that this entire notice 6*40ef9009SDavid du Colombier * is included in all copies of any software which is or includes a copy 7*40ef9009SDavid du Colombier * or modification of this software and in all copies of the supporting 8*40ef9009SDavid du Colombier * documentation for such software. 9*40ef9009SDavid du Colombier * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED 10*40ef9009SDavid du Colombier * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY 11*40ef9009SDavid du Colombier * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY 12*40ef9009SDavid du Colombier * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. 13*40ef9009SDavid du Colombier */ 14*40ef9009SDavid du Colombier #include <stdarg.h> 15*40ef9009SDavid du Colombier #include <string.h> 16*40ef9009SDavid du Colombier #include <stdlib.h> 17*40ef9009SDavid du Colombier #include "utf.h" 18*40ef9009SDavid du Colombier #include "fmt.h" 19*40ef9009SDavid du Colombier #include "fmtdef.h" 20*40ef9009SDavid du Colombier 21*40ef9009SDavid du Colombier static int fmtStrFlush(Fmt * f)22*40ef9009SDavid du ColombierfmtStrFlush(Fmt *f) 23*40ef9009SDavid du Colombier { 24*40ef9009SDavid du Colombier char *s; 25*40ef9009SDavid du Colombier int n; 26*40ef9009SDavid du Colombier 27*40ef9009SDavid du Colombier n = (int)f->farg; 28*40ef9009SDavid du Colombier n += 256; 29*40ef9009SDavid du Colombier f->farg = (void*)n; 30*40ef9009SDavid du Colombier s = (char*)f->start; 31*40ef9009SDavid du Colombier f->start = realloc(s, n); 32*40ef9009SDavid du Colombier if(f->start == nil){ 33*40ef9009SDavid du Colombier f->start = s; 34*40ef9009SDavid du Colombier return 0; 35*40ef9009SDavid du Colombier } 36*40ef9009SDavid du Colombier f->to = (char*)f->start + ((char*)f->to - s); 37*40ef9009SDavid du Colombier f->stop = (char*)f->start + n - 1; 38*40ef9009SDavid du Colombier return 1; 39*40ef9009SDavid du Colombier } 40*40ef9009SDavid du Colombier 41*40ef9009SDavid du Colombier int fmtstrinit(Fmt * f)42*40ef9009SDavid du Colombierfmtstrinit(Fmt *f) 43*40ef9009SDavid du Colombier { 44*40ef9009SDavid du Colombier int n; 45*40ef9009SDavid du Colombier 46*40ef9009SDavid du Colombier f->runes = 0; 47*40ef9009SDavid du Colombier n = 32; 48*40ef9009SDavid du Colombier f->start = malloc(n); 49*40ef9009SDavid du Colombier if(f->start == nil) 50*40ef9009SDavid du Colombier return -1; 51*40ef9009SDavid du Colombier f->to = f->start; 52*40ef9009SDavid du Colombier f->stop = (char*)f->start + n - 1; 53*40ef9009SDavid du Colombier f->flush = fmtStrFlush; 54*40ef9009SDavid du Colombier f->farg = (void*)n; 55*40ef9009SDavid du Colombier f->nfmt = 0; 56*40ef9009SDavid du Colombier return 0; 57*40ef9009SDavid du Colombier } 58*40ef9009SDavid du Colombier 59*40ef9009SDavid du Colombier char* fmtstrflush(Fmt * f)60*40ef9009SDavid du Colombierfmtstrflush(Fmt *f) 61*40ef9009SDavid du Colombier { 62*40ef9009SDavid du Colombier *(char*)f->to = '\0'; 63*40ef9009SDavid du Colombier f->to = f->start; 64*40ef9009SDavid du Colombier return (char*)f->start; 65*40ef9009SDavid du Colombier } 66