Mercurial Hosting > luan
annotate src/luan/modules/Io.luan @ 1571:a23b02693d3b
minor
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 18 Nov 2020 20:44:09 -0700 |
parents | 81288d8b20a2 |
children | c922446f53aa |
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1 require "java" |
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2 local IoLuan = require "java:luan.modules.IoLuan" |
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3 local System = require "java:java.lang.System" |
1280 | 4 local Boot = require "luan:Boot.luan" |
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5 local LuanException = require "java:luan.LuanException" |
1280 | 6 |
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7 |
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8 local Io = {} |
503 | 9 |
1444 | 10 Io.dns_lookup = IoLuan.dns_lookup |
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11 Io.ip = IoLuan.ip |
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12 Io.my_ips = IoLuan.my_ips |
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13 Io.read_console_line = IoLuan.read_console_line |
1280 | 14 Io.schemes = Boot.schemes |
15 Io.uri = Boot.uri | |
16 Io.stdin = Boot.new_LuanIn( IoLuan.defaultStdin ) | |
17 Io.stdout = Boot.text_writer(System.out) | |
18 Io.stderr = Boot.text_writer(System.err) | |
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19 |
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20 -- used by http and rpc |
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21 Io.password = "password" |
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22 |
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23 local Luan = require "luan:Luan.luan" |
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24 local error = Luan.error |
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25 local to_string = Luan.to_string or error() |
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26 local type = Luan.type or error() |
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27 local ipairs = Luan.ipairs or error() |
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28 local pairs = Luan.pairs or error() |
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29 local values = Luan.values or error() |
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30 local load = Luan.load or error() |
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31 local Table = require "luan:Table.luan" |
1277 | 32 local pack = Table.pack or error() |
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33 local unpack = Table.unpack or error() |
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34 local String = require "luan:String.luan" |
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35 local encode = String.encode or error() |
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36 local matches = String.matches or error() |
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37 |
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38 |
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39 -- do not change |
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40 function Io.template_write(...) |
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41 return Io.stdout.write(...) |
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42 end |
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43 |
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44 |
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45 function Io.print_to(out,...) |
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46 local list = {} |
1276 | 47 for _, v in values(...) do |
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48 list[#list+1] = to_string(v) |
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49 list[#list+1] = '\t' |
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50 end |
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51 if #list > 0 then |
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52 list[#list] = '\n' |
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53 out.write( unpack(list) ) |
1277 | 54 else |
55 out.write('\n') | |
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56 end |
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57 end |
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58 |
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59 function Io.print(...) |
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60 Io.print_to(Io.stdout,...) |
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61 end |
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62 |
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63 |
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64 function Io.output_to(out,fn) |
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65 local old_out = Io.stdout |
1520 | 66 try |
67 Io.stdout = out | |
68 return fn() | |
69 finally | |
70 Io.stdout = old_out | |
71 end | |
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72 end |
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73 |
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74 local uri = Io.uri -- make local |
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75 |
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76 function Io.output_of(fn) |
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77 local string_uri = uri "string:" |
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78 local out = string_uri.text_writer() |
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79 Io.output_to(out,fn) |
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80 out.close() |
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81 return string_uri.read_text() |
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82 end |
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83 |
1571 | 84 function Io.relative_file_uri_string(path) |
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85 local f = LuanException.getLuanStackTrace()[2].getFileName() |
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86 f = uri(f) |
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87 f.parent or error "source isn't file" |
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88 return f.parent().to_uri_string().."/"..path |
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89 end |
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90 |
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91 |
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92 -- debug |
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93 |
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94 function Io.debug(prompt) |
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95 prompt = prompt or "luan_debug> " |
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96 local function console() |
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97 return Io.read_console_line(prompt) |
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98 end |
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99 local env = {} |
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100 for line in console do |
1520 | 101 try |
102 local fn | |
103 try | |
104 fn = load("return "..line,"stdin",env) | |
105 catch e | |
106 fn = load(line,"stdin",env) | |
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107 end |
1520 | 108 local rtn = pack( fn() ) |
109 if rtn.n > 0 then | |
110 Io.print( unpack(rtn) ) | |
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111 end |
1520 | 112 catch e |
113 Io.print(e) | |
114 end | |
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115 end |
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116 end |
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117 |
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118 |
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119 return Io |