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8a19f60386
- Reorder README to have implementation list after "learning tool" bullet. - This also moves tests/ and libs/ into impls. It would be preferrable to have these directories at the top level. However, this causes difficulties with the wasm implementations which need pre-open directories and have trouble with paths starting with "../../". So in lieu of that, symlink those directories to the top-level. - Move the run_argv_test.sh script into the tests directory for general hygiene.
57 lines
1.8 KiB
Tcl
57 lines
1.8 KiB
Tcl
proc format_list {elements start_char end_char readable} {
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set res {}
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foreach element $elements {
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lappend res [pr_str $element $readable]
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}
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set joined [join $res " "]
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return "${start_char}${joined}${end_char}"
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}
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proc format_hashmap {dictionary readable} {
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set lst {}
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dict for {keystr valobj} $dictionary {
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lappend lst [string_new $keystr]
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lappend lst $valobj
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}
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format_list $lst "\{" "\}" $readable
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}
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proc format_string {str readable} {
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if {[string index $str 0] == "\u029E"} {
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return ":[string range $str 1 end]"
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} elseif {$readable} {
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set escaped [string map {"\n" "\\n" "\"" "\\\"" "\\" "\\\\"} $str]
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return "\"$escaped\""
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} else {
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return $str
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}
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}
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proc format_function {funcdict} {
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set type "function"
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if {[dict get $funcdict is_macro]} {
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set type "macro"
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}
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return "<$type:args=[join [dict get $funcdict binds] ","]>"
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}
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proc pr_str {ast readable} {
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set nodetype [obj_type $ast]
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set nodevalue [obj_val $ast]
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switch $nodetype {
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nil { return "nil" }
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true { return "true" }
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false { return "false" }
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integer { return $nodevalue }
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symbol { return $nodevalue }
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string { return [format_string $nodevalue $readable] }
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list { return [format_list $nodevalue "(" ")" $readable] }
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vector { return [format_list $nodevalue "\[" "\]" $readable] }
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hashmap { return [format_hashmap [dict get $nodevalue] $readable] }
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atom { return "(atom [pr_str $nodevalue $readable])" }
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function { return [format_function $nodevalue] }
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nativefunction { return "<nativefunction:$nodevalue>" }
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default { error "cannot print type $nodetype" }
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}
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}
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