ref: 89cd4a0e67376d69d42a17bc3135ac9206c4e332
dir: /sys/src/cmd/upas/imap4d/print.c/
#include "imap4d.h" int Ffmt(Fmt *f) { char *s, buf[128], buf2[128]; s = va_arg(f->args, char*); if(strncmp("/imap", s, 5) && strncmp("/pop", s, 4)){ snprint(buf, sizeof buf, "/mail/box/%s/%s", username, s); s = buf; } snprint(buf2, sizeof buf2, "%q", s); return fmtstrcpy(f, buf2); } enum { Qok = 0, Qquote = 1<<0, Qbackslash = 1<<1, Qliteral = 1<<2, }; static int needtoquote(Rune r) { if(r >= 0x7f || r == '\n' || r == '\r') return Qliteral; if(r <= ' ') return Qquote; if(r == '\\' || r == '"') return Qbackslash; return Qok; } int Zfmt(Fmt *f) { char *s, *t, buf[Pathlen], buf2[Pathlen]; int w, quotes, alt; Rune r; s = va_arg(f->args, char*); alt = f->flags & FmtSharp; if(s == 0 && !alt) return fmtstrcpy(f, "NIL"); if(s == 0 || *s == 0) return fmtstrcpy(f, "\"\""); switch(f->r){ case 'Y': s = decfs(buf, sizeof buf, s); s = encmutf7(buf2, sizeof buf2, s); break; } quotes = 0; for(t = s; *t; t += w){ w = chartorune(&r, t); quotes |= needtoquote(r); if(quotes & Qliteral && alt) ilog("[%s] bad at [%s] %.2ux\n", s, t, r); } if(alt){ if(!quotes) return fmtstrcpy(f, s); if(quotes & Qliteral) return fmtstrcpy(f, "GOK"); }else if(quotes & Qliteral) return fmtprint(f, "{%lud}\r\n%s", strlen(s), s); fmtrune(f, '"'); for(t = s; *t; t += w){ w = chartorune(&r, t); if(needtoquote(r) == Qbackslash) fmtrune(f, '\\'); fmtrune(f, r); } return fmtrune(f, '"'); } int Xfmt(Fmt *f) { char *s, buf[Pathlen], buf2[Pathlen]; s = va_arg(f->args, char*); if(s == 0) return fmtstrcpy(f, "NIL"); s = decmutf7(buf2, sizeof buf2, s); cleanname(s); return fmtstrcpy(f, encfs(buf, sizeof buf, s)); } int Dfmt(Fmt *f) { char buf[128], *fmt; Tm *tm, t; Tzone *tz; tm = va_arg(f->args, Tm*); if(tm == nil){ tz = tzload("local"); tm = tmtime(&t, time(0), tz); } if((f->flags & FmtSharp) == 0){ /* rfc822 style */ fmt = "WW, DD MMM YYYY hh:mm:ss Z"; }else fmt = "DD-MMM-YYYY hh:mm:ss Z"; if(f->r == L'δ') return fmtprint(f, "%τ", tmfmt(tm, fmt)); snprint(buf, sizeof(buf), "%τ", tmfmt(tm, fmt)); return fmtprint(f, "%Z", buf); }