ref: db1eb844461b07a25ca49117851fa874fd88e065
dir: /appl/alphabet/fs/path.b/
implement Path, Fsmodule; include "sys.m"; sys: Sys; include "draw.m"; include "sh.m"; include "alphabet/reports.m"; Report: import Reports; include "alphabet/fs.m"; fs: Fs; Value: import fs; Fschan, Fsdata, Entrychan, Entry, Gatechan, Gatequery, Nilentry, Option, Next, Down, Skip, Quit: import Fs; Path: module {}; types(): string { return "pss*-x"; } badmod(p: string) { sys->fprint(sys->fildes(2), "fs: size: cannot load %s: %r\n", p); raise "fail:bad module"; } init() { sys = load Sys Sys->PATH; fs = load Fs Fs->PATH; if(fs == nil) badmod(Fs->PATH); fs->init(); } run(nil: ref Draw->Context, nil: ref Report, opts: list of Option, args: list of ref Value): ref Value { # XXX cleanname all paths? c := chan of Gatequery; p: list of string; for(; args != nil; args = tl args) p = (hd args).s().i :: p; spawn pathgate(c, opts != nil, p); return ref Value.Vp(c); } pathgate(c: Gatechan, xflag: int, paths: list of string) { if(xflag){ while((((d, path, nil), reply) := <-c).t0.t0 != nil){ for(q := paths; q != nil; q = tl q){ r := 1; p := hd q; if(len path > len p) r = path[len p] != '/' || path[0:len p] != p; else if(len path == len p) r = path != p; if(r == 0) break; } reply <-= q == nil; } }else{ while((((d, path, nil), reply) := <-c).t0.t0 != nil){ for(q := paths; q != nil; q = tl q){ r := 0; p := hd q; if(len path > len p) r = path[len p] == '/' && path[0:len p] == p; else if(len path == len p) r = path == p; else r = p[len path] == '/' && p[0:len path] == path; if(r) break; } reply <-= q != nil; } } }