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annotate src/luan/modules/Html.luan @ 1307:6c8ceca4a10b

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json fixes
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 23 Jan 2019 13:34:18 -0700
parents 9dca1e912658
children a015a0b5c388
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1 java()
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2 local HtmlLuan = require "java:luan.modules.HtmlLuan"
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3 local HtmlParser = require "java:luan.modules.parsers.Html"
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4 local URLEncoder = require "java:java.net.URLEncoder"
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5 local JsonToString = require "java:luan.lib.json.JsonToString"
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6 local Luan = require "luan:Luan.luan"
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7 local error = Luan.error
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8 local ipairs = Luan.ipairs or error()
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9 local pairs = Luan.pairs or error()
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10 local type = Luan.type or error()
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11 local Io = require "luan:Io.luan"
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12 local output_of = Io.output_of or error()
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13
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14
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15 local Html = {}
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16
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17 Html.encode = HtmlLuan.encode
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18 Html.javascript_encode = JsonToString.javascriptEncode
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19
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20 local quote = HtmlLuan.quote
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21 Html.quote = quote
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22
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23 function Html.parse(text,container_tags)
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24 text or error "text required"
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25 container_tags = container_tags or {"script","style","textarea"}
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26 return HtmlParser.toList(text,container_tags)
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27 end
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28
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29 function Html.url_encode(s)
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30 return URLEncoder.encode(s,"UTF-8")
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31 end
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32
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33 local function output_tag(tag)
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34 %><<%= tag.name %><%
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35 for name, value in pairs(tag.attributes) do
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36 %> <%= name %><%
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37 if value ~= true then
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38 %>=<%= quote(value) %><%
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39 end
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40 end
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41 if tag.is_empty then
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42 %>/<%
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43 end
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44 %>><%
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45 end
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46
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47 function Html.to_string(list)
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48 return output_of( function()
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49 for _, obj in ipairs(list) do
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50 local tp = type(obj)
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51 if tp == "string" then
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52 %><%= obj %><%
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53 elseif tp == "table" then
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54 tp = obj.type
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55 if tp == nil then
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56 error "no type in element of table for 'Html.to_string'"
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57 elseif tp == "comment" then
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58 %><!--<%= obj.text %>--><%
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59 elseif tp == "cdata" then
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60 %><![CDATA[<%= obj.text %>]]><%
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61 elseif tp == "tag" then
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62 output_tag(obj)
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63 elseif tp == "container" then
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64 local tag = obj.tag
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65 output_tag(tag)
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66 %><%= obj.text %></<%= tag.name %>><%
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67 else
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68 error "invalid element type for 'Html.to_string'"
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69 end
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70 else
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71 error("invalid value ("..tp..") in list for 'Html.to_string'")
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72 end
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73 end
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74 end )
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75 end
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76
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77 return Html