michael/lf
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

comment

Browse Source
This commit is contained in:
Gokcehan 2016-11-06 23:25:59 +03:00
parent 6008bef959
commit 1511e05a2c
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
app.go
View File

@ -55,6 +55,10 @@ func waitKey() error {
return nil return nil
} }
// This function is used to read expressions on the client side. Prompting
// commands (e.g. "read") are recognized and evaluated while being read here.
// Digits are interpreted as command counts but this is only done for digits
// preceding any non-digit characters (e.g. "42y2k" as 42 times "y2k").
func (app *App) readExpr() chan MultiExpr { func (app *App) readExpr() chan MultiExpr {
ch := make(chan MultiExpr) ch := make(chan MultiExpr)
@ -74,9 +78,6 @@ func (app *App) readExpr() chan MultiExpr {
acc = append(acc, '<', 'l', 't', '>') acc = append(acc, '<', 'l', 't', '>')
case ev.Ch == '>': case ev.Ch == '>':
acc = append(acc, '<', 'g', 't', '>') acc = append(acc, '<', 'g', 't', '>')
// Interpret digits as command count but only do this for
// digits preceding any non-digit characters
// (e.g. "42y2k" as 42 times "y2k").
case unicode.IsDigit(ev.Ch) && len(acc) == 0: case unicode.IsDigit(ev.Ch) && len(acc) == 0:
cnt = append(cnt, ev.Ch) cnt = append(cnt, ev.Ch)
default: default:
@ -181,6 +182,10 @@ func (app *App) readExpr() chan MultiExpr {
return ch return ch
} }
// This is the main event loop of the application. There are two channels to
// read expressions from client and server. Reading and evaluation are done on
// different goroutines except for prompting commands (e.g. "read"). Quitting
// commands should create separate goroutines to prevent deadlock here.
func (app *App) handleInp() { func (app *App) handleInp() {
clientChan := app.readExpr() clientChan := app.readExpr()