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repl: clear screen and help menu

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Henrixounez 2019-08-22 04:36:24 +02:00 committed by Alexander Medvednikov
parent be99a65f2b
commit 232532ba3b
1 changed files with 18 additions and 0 deletions
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18
compiler/repl.v
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@ -5,6 +5,7 @@
module main module main
import os import os
import term
struct Repl { struct Repl {
mut: mut:
@ -49,6 +50,15 @@ fn (r mut Repl) function_call(line string) bool {
return false return false
} }
fn repl_help() {
println('
V $Version
help Displays this information.
Ctrl-C, Ctrl-D, exit Exits the REPL.
clear Clears the screen.
')
}
fn run_repl() []string { fn run_repl() []string {
println('V $Version') println('V $Version')
println('Use Ctrl-C or `exit` to exit') println('Use Ctrl-C or `exit` to exit')
@ -80,6 +90,14 @@ fn run_repl() []string {
if line == '\n' { if line == '\n' {
continue continue
} }
if line == 'clear' {
term.erase_display('2')
continue
}
if line == 'help' {
repl_help()
continue
}
if line.starts_with('fn') { if line.starts_with('fn') {
r.in_func = true r.in_func = true
r.functions_name << line.all_after('fn').all_before('(').trim_space() r.functions_name << line.all_after('fn').all_before('(').trim_space()