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-rw-r--r--appl/alphabet/fs/print.b61
1 files changed, 61 insertions, 0 deletions
diff --git a/appl/alphabet/fs/print.b b/appl/alphabet/fs/print.b
new file mode 100644
index 00000000..4c9bee59
--- /dev/null
+++ b/appl/alphabet/fs/print.b
@@ -0,0 +1,61 @@
+implement Print, Fsmodule;
+include "sys.m";
+ sys: Sys;
+include "draw.m";
+include "sh.m";
+include "alphabet/reports.m";
+ reports: Reports;
+ 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;
+
+Print: module {};
+
+types(): string
+{
+ return "ft";
+}
+
+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;
+ reports = load Reports Reports->PATH;
+ if(reports == nil)
+ badmod(Reports->PATH);
+ fs = load Fs Fs->PATH;
+ if(fs == nil)
+ badmod(Fs->PATH);
+ fs->init();
+}
+
+run(nil: ref Draw->Context, report: ref Report,
+ nil: list of Option, args: list of ref Value): ref Value
+{
+ f := chan of ref Sys->FD;
+ spawn printproc(f, (hd args).t().i, report.start("/fs/print"));
+ return ref Value.Vf(f);
+}
+
+printproc(f: chan of ref Sys->FD, c: Entrychan, errorc: chan of string)
+{
+ f <-= nil;
+ if((fd := <-f) == nil){
+ c.sync <-= 0;
+ reports->quit(errorc);
+ }
+ c.sync <-= 1;
+ while(((d, p, nil) := <-c.c).t0 != nil)
+ sys->fprint(fd, "%s\n", p);
+ sys->fprint(fd, "");
+ reports->quit(errorc);
+}