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576ef3703a
The Readline library for Tcl (tclreadline) enables history substitutions, which means that lines that begin with `^` or `!` are preprocessed by readline. This interferes with some step1 tests of the `^` form (--> with-meta). Now the Tcl implementation supports a `--raw` command line flag which disables the readline library and opts for simple input from stdin. The tests (Makefile) are run with `--raw`.
55 lines
1.2 KiB
Tcl
55 lines
1.2 KiB
Tcl
if {[lindex $argv 0] == "--raw"} {
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set ::readline_mode "raw"
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set argv [lrange $argv 1 end]
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incr argc -1
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} else {
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if {[catch {package require tclreadline}]} {
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set ::readline_mode "raw"
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} else {
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set ::readline_mode "library"
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}
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}
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set ::historyfile "$env(HOME)/.mal-history"
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set ::readline_library_initalized 0
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proc readline_library_init {} {
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if {$::readline_library_initalized} {
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return
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}
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::tclreadline::readline initialize $::historyfile
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::tclreadline::readline builtincompleter 0
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::tclreadline::readline customcompleter ""
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set ::readline_library_initalized 1
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}
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proc _readline_library prompt {
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readline_library_init
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set reached_eof 0
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::tclreadline::readline eofchar { set reached_eof 1 }
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set line [::tclreadline::readline read $prompt]
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if {$reached_eof} {
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return {"EOF" ""}
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}
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::tclreadline::readline write $::historyfile
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list "OK" $line
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}
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proc _readline_raw prompt {
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puts -nonewline $prompt
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flush stdout
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if {[gets stdin line] < 0} {
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return {"EOF" ""}
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}
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list "OK" $line
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}
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proc _readline prompt {
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if {$::readline_mode == "library"} {
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_readline_library $prompt
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} else {
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_readline_raw $prompt
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}
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}
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