Mercurial Hosting > luan
annotate src/luan/modules/Io.luan @ 1578:c922446f53aa
immutable threading
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Mon, 08 Feb 2021 14:16:19 -0700 |
parents | a23b02693d3b |
children | b82767112d8e |
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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" |
1578 | 6 local Luan = require "luan:Luan.luan" |
7 local error = Luan.error | |
8 local get_local_cloned = Luan.get_local_cloned | |
9 local set_local_cloned = Luan.set_local_cloned | |
10 local raw_set = Luan.raw_set | |
11 local set_metatable = Luan.set_metatable | |
1280 | 12 |
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13 |
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14 local Io = {} |
1578 | 15 local mt = {} |
16 function mt.__index(tbl,key) | |
17 if key=="stdin" or key=="stdout" or key=="stderr" then | |
18 return get_local_cloned(tbl,key) | |
19 else | |
20 return nil | |
21 end | |
22 end | |
23 function mt.__new_index(tbl,key,value) | |
24 if key=="stdin" or key=="stdout" or key=="stderr" then | |
25 set_local_cloned(tbl,key,value) | |
26 else | |
27 raw_set(tbl,key,value) | |
28 end | |
29 end | |
30 set_metatable(Io,mt) | |
503 | 31 |
1444 | 32 Io.dns_lookup = IoLuan.dns_lookup |
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33 Io.ip = IoLuan.ip |
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34 Io.my_ips = IoLuan.my_ips |
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35 Io.read_console_line = IoLuan.read_console_line |
1280 | 36 Io.schemes = Boot.schemes |
37 Io.uri = Boot.uri | |
38 Io.stdin = Boot.new_LuanIn( IoLuan.defaultStdin ) | |
39 Io.stdout = Boot.text_writer(System.out) | |
40 Io.stderr = Boot.text_writer(System.err) | |
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41 |
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42 -- used by http and rpc |
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43 Io.password = "password" |
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44 |
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45 local to_string = Luan.to_string or error() |
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46 local type = Luan.type or error() |
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47 local ipairs = Luan.ipairs or error() |
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48 local pairs = Luan.pairs or error() |
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49 local values = Luan.values or error() |
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50 local load = Luan.load or error() |
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51 local Table = require "luan:Table.luan" |
1277 | 52 local pack = Table.pack or error() |
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53 local unpack = Table.unpack or error() |
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54 local String = require "luan:String.luan" |
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55 local encode = String.encode or error() |
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56 local matches = String.matches or error() |
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57 |
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58 |
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59 -- do not change |
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60 function Io.template_write(...) |
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61 return Io.stdout.write(...) |
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62 end |
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63 |
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64 |
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65 function Io.print_to(out,...) |
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66 local list = {} |
1276 | 67 for _, v in values(...) do |
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68 list[#list+1] = to_string(v) |
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69 list[#list+1] = '\t' |
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70 end |
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71 if #list > 0 then |
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72 list[#list] = '\n' |
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73 out.write( unpack(list) ) |
1277 | 74 else |
75 out.write('\n') | |
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76 end |
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77 end |
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78 |
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79 function Io.print(...) |
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80 Io.print_to(Io.stdout,...) |
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81 end |
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82 |
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83 |
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84 function Io.output_to(out,fn) |
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85 local old_out = Io.stdout |
1520 | 86 try |
87 Io.stdout = out | |
88 return fn() | |
89 finally | |
90 Io.stdout = old_out | |
91 end | |
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92 end |
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93 |
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94 local uri = Io.uri -- make local |
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95 |
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96 function Io.output_of(fn) |
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97 local string_uri = uri "string:" |
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98 local out = string_uri.text_writer() |
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99 Io.output_to(out,fn) |
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100 out.close() |
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101 return string_uri.read_text() |
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102 end |
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103 |
1571 | 104 function Io.relative_file_uri_string(path) |
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105 local f = LuanException.getLuanStackTrace()[2].getFileName() |
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106 f = uri(f) |
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107 f.parent or error "source isn't file" |
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108 return f.parent().to_uri_string().."/"..path |
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109 end |
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110 |
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111 |
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112 -- debug |
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113 |
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114 function Io.debug(prompt) |
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115 prompt = prompt or "luan_debug> " |
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116 local function console() |
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117 return Io.read_console_line(prompt) |
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118 end |
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119 local env = {} |
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120 for line in console do |
1520 | 121 try |
122 local fn | |
123 try | |
124 fn = load("return "..line,"stdin",env) | |
125 catch e | |
126 fn = load(line,"stdin",env) | |
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127 end |
1520 | 128 local rtn = pack( fn() ) |
129 if rtn.n > 0 then | |
130 Io.print( unpack(rtn) ) | |
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131 end |
1520 | 132 catch e |
133 Io.print(e) | |
134 end | |
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135 end |
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136 end |
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137 |
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138 |
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139 return Io |