├── README.md ├── fangle.coffee └── license.txt /README.md: -------------------------------------------------------------------------------- 1 | ## Demo website 2 | 3 | [Clicky](http://jotux.github.io/fangle/) 4 | 5 | ## Why? 6 | 7 | After reading about [Tangle](http://worrydream.com/Tangle/) I was excited about real-time interaction with code and documents but having to write javascript seemed like a pain. Fangle is an alternative way (to html/js) to create reactive documents. 8 | 9 | ## Contact/Contribute 10 | 11 | If you are interested in using fangle you can fork it on github. 12 | 13 | If you've looked at the source code and would like to scold me for how ugly it is feel free to submit issues or send pull requests. 14 | 15 | ## License 16 | 17 | All code is released under the supplied (MIT) license unless otherwise stated. 18 | 19 | ## Similar 20 | 21 | While I was working on tangle I ran across [tangledown](http://bollwyvl.github.com/TangleDown/index.html) which is similar is some ways. If you're interested in creating interactive documents from plaintext it may interest you as well. 22 | -------------------------------------------------------------------------------- /fangle.coffee: -------------------------------------------------------------------------------- 1 | debug = false 2 | dbg = (msg) -> 3 | if debug isnt true 4 | return 5 | console.log(msg) 6 | 7 | strip = (text) -> 8 | if text isnt undefined 9 | text.replace(/^\s+|\s+/g, "") 10 | else 11 | text 12 | 13 | GetBlocks = (text) -> 14 | blocks = text.match(/(\[[a-z0-9=_]*?)\[(.*?)\](.*?\])/g) 15 | if blocks is null 16 | return null 17 | len = blocks.length - 1 18 | starts = (text.indexOf(blocks[b],0) for b in [0..len]) 19 | lengths = (blocks[b].length for b in [0..len]) 20 | ends = (starts[b] + lengths[b] for b in [0..len]) 21 | {blocks,starts,ends} 22 | 23 | GetVariables = (blocks) -> 24 | len = blocks.length - 1 25 | names = [] 26 | inits = [] 27 | for b in [0..len] 28 | vars = blocks[b].match(/\[(.*?)\[/)[1].split("=") 29 | names[b] = strip(vars[0]) 30 | if vars[1] isnt undefined 31 | inits[b] = strip(vars[1]) 32 | else 33 | inits[b] = "" 34 | {names,inits} 35 | 36 | GetTexts = (blocks) -> 37 | len = blocks.length - 1 38 | formats = [] 39 | texts = [] 40 | for b in [0..len] 41 | raw = blocks[b].match(/\](.*).$/)[1] 42 | raw_split = raw.split(" ") 43 | if raw[0] is "%" and raw_split[0].length > 1 44 | formats[b] = raw_split[0] 45 | texts[b] = raw[formats[b].length..raw.length - 1] 46 | else 47 | formats[b] = "" 48 | texts[b] = raw 49 | {texts,formats} 50 | 51 | GetConfigs = (blocks) -> 52 | len = blocks.length - 1 53 | # Types are: NumberBox,AdjustableNumber,Toggle,Resultant,If,Switch,Variable 54 | # Short description: N, A, T, R, I, S, V 55 | types = [] 56 | mins = [] 57 | maxs = [] 58 | steps = [] 59 | conds = [] 60 | exprs = [] 61 | for b in [0..len] 62 | config = blocks[b].match(/\[.+\[(.*?)\].*\]/) 63 | types[b] = GetConfigType(config) 64 | mins[b] = "" 65 | maxs[b] = "" 66 | steps[b] = "" 67 | conds[b] = "" 68 | exprs[b] = "" 69 | switch(types[b]) 70 | when "S","I" 71 | conds[b] = config[1].replace /([a-zA-Z_]+.*?)/g, (match) -> 72 | AddThisTo(match) 73 | when "R" 74 | exprs[b] = config[1].replace /([a-zA-Z_]+.*?)/g, (match) -> 75 | AddThisTo(match) 76 | when "A" 77 | range_info = config[1].split("..") 78 | step_info = range_info[1].split(",") 79 | if step_info.length > 1 80 | steps[b] = step_info[1] 81 | mins[b] = range_info[0] 82 | maxs[b] = step_info[0] 83 | else 84 | mins[b] = range_info[0] 85 | maxs[b] = range_info[1] 86 | {types,mins,maxs,steps,conds,exprs} 87 | 88 | GetConfigType = (config) -> 89 | if config[1] is "" 90 | type = "V" 91 | else if config[1] is "_" 92 | type = "N" 93 | else if config[1] is "0,1" 94 | type = "T" 95 | else if config[1].split("..").length > 1 96 | type = "A" 97 | else if /[><|&=!]/.test(config[1]) is true and config[1].split(",").length > 1 98 | type = "S" 99 | else if /[><|&=!]/.test(config[1]) is true 100 | type = "I" 101 | else if /[\*|\+|\-|\/|\^]|^\S+/.test(config[1]) is true 102 | type = "R" 103 | else 104 | type = "U" 105 | 106 | AddThisTo = (text) -> 107 | if text is undefined 108 | return 109 | text = "this.#{text}" 110 | 111 | GetHtmJs = (raw,blocks,variables,texts,configs) -> 112 | inits = "" 113 | updates = "" 114 | htm = raw[0..blocks['starts'][0] - 1] 115 | len = blocks['starts'].length - 1 116 | for b in [0..len] 117 | switch configs['types'][b] 118 | when "V" 119 | if variables['inits'][b] isnt "" 120 | inits += "#{AddThisTo(variables['names'][b])}=#{variables['inits'][b]};" 121 | else 122 | inits += "#{AddThisTo(variables['names'][b])}=0" 123 | when "R" 124 | updates += "#{AddThisTo(variables['names'][b])}=#{configs['exprs'][b]};" 125 | htm += "" 147 | when "T" 148 | if variables['inits'][b] isnt "" 149 | inits += "#{AddThisTo(variables['names'][b])}=#{variables['inits'][b]};" 150 | else 151 | inits += "#{AddThisTo(variables['names'][b])}=0;" 152 | htm += "" 154 | toggle_text = texts['texts'][b].split(",") 155 | htm += "#{toggle_text[0]}" 156 | htm += "#{toggle_text[1]}" 157 | htm += "" 158 | when "I" 159 | updates += "#{AddThisTo(variables['names'][b])}=#{configs['conds'][b]};" 160 | htm += "" 168 | for s in [0..s_len] 169 | updates += "if (#{switch_updates[s]}){#{AddThisTo(variables['names'][b])}=#{s};}" 170 | updates += "else " if s isnt s_len 171 | htm += "#{switch_texts[s]}" 172 | htm += "" 173 | # TODO add supprt for "U" 174 | htm += raw[blocks['ends'][b]..blocks['starts'][b + 1] - 1] if (b <= len) 175 | js = "{initialize: function () {#{inits}},update: function (){#{updates}}}" 176 | {js,htm} 177 | 178 | ParseReactive = (raw) -> 179 | try 180 | dbg("Get blocks") 181 | blocks = GetBlocks(raw) 182 | if blocks is null 183 | return null 184 | dbg("Get vars and inits") 185 | variables = GetVariables(blocks['blocks']) 186 | dbg("Get text and format") 187 | texts = GetTexts(blocks['blocks']) 188 | dbg("Get config info") 189 | configs = GetConfigs(blocks['blocks']) 190 | dbg("Get js and htm") 191 | GetHtmJs(raw,blocks,variables,texts,configs) 192 | catch error 193 | dbg("Parsing Error #{error}") 194 | return null 195 | 196 | tangle = {} 197 | model = {} 198 | 199 | MdToHtml = (raw) -> 200 | try 201 | converter = new Showdown.converter() 202 | htm = converter.makeHtml(raw) 203 | catch error 204 | dbg("Markdown convertion error #{error}") 205 | return raw 206 | 207 | # Everything below this line should be abstracted out to the main page or a different script. Everything above should probably be moved into a class 208 | # Eventually I want to clean this up into a node module 209 | 210 | UpdateModel = (model) -> 211 | element = document.getElementById("t1") 212 | tangle = new Tangle(element,model) 213 | 214 | RunParse = -> 215 | raw = "\n" + $("#input").val() 216 | r = ParseReactive(raw) 217 | if r isnt null 218 | try 219 | htm = MdToHtml(r['htm']) 220 | eval("model =" + r['js']) 221 | $("#output").html(htm) 222 | UpdateModel(model) 223 | catch error 224 | dbg("Model loading error #{error}") 225 | htm = MdToHtml(raw) 226 | $("#output").html(htm) 227 | else 228 | htm = MdToHtml(raw) 229 | $("#output").html(htm) 230 | 231 | oldtext = "" 232 | newtext = "" 233 | 234 | CheckForChanges = -> 235 | newtext = $("#input").val() 236 | if newtext isnt oldtext 237 | RunParse() 238 | oldtext = newtext 239 | setTimeout CheckForChanges, 300 240 | 241 | $("#car_ex").click = -> 242 | alert("test") 243 | 244 | $ -> 245 | model = 246 | initialize: -> 247 | return 248 | update: -> 249 | return 250 | element = document.getElementById("t1") 251 | tangle = new Tangle(element,model) 252 | CheckForChanges() -------------------------------------------------------------------------------- /license.txt: -------------------------------------------------------------------------------- 1 | Copyright (C) 2013 Joe Brown 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 4 | 5 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 6 | 7 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 8 | --------------------------------------------------------------------------------