Help/Streams-Patterns-Events/History.html

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  34 <p class="p1"><span class="s1"><b>History</b></span><span class="s2"><span class="Apple-tab-span">      </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span><b>keeps a history of interpreted lines of code</b></p>
  35 <p class="p2"><br></p>
  36 <p class="p1"><b>Inherits from:</b> <a href="../../../Core/Object.html"><span class="s3">Object</span></a></p>
  37 <p class="p2"><br></p>
  38 <p class="p1">History keeps track of all code lines that are being executed, in order to forward them to other players, to easily reuse earlier versions, or to store and reproduce a performance. Since it records everything that is interpreted, there is only one privileged instance of History - <b>History.current.<span class="Apple-converted-space"> </span></b></p>
  39 <p class="p1">(adc 2006/7)</p>
  40 <p class="p2"><br></p>
  41 <p class="p2"><br></p>
  42 <p class="p1"><span class="Apple-tab-span">     </span><b>*start / *end</b><span class="Apple-tab-span">        </span>start/end adding interpreted code to (current) history</p>
  43 <p class="p2"><span class="Apple-tab-span">     </span></p>
  44 <p class="p1"><span class="Apple-tab-span">     </span><b>*clear</b><span class="Apple-tab-span">       </span><span class="Apple-tab-span">    </span>remove all items from<span class="Apple-converted-space">  </span>(current) history</p>
  45 <p class="p2"><span class="Apple-tab-span">     </span></p>
  46 <p class="p1"><span class="Apple-tab-span">     </span><b>*enter(obj)</b><span class="Apple-tab-span">  </span>add an entry by hand</p>
  47 <p class="p2"><span class="Apple-tab-span">     </span></p>
  48 <p class="p1"><span class="Apple-tab-span">     </span><b>*document</b><span class="Apple-tab-span">    </span>post the history in a new document (as story)</p>
  49 <p class="p2"><span class="Apple-tab-span">     </span></p>
  50 <p class="p1"><span class="Apple-tab-span">     </span><b>*drop(n)</b><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>drop the newest n lines from history. if n is negative, drop the oldest n lines</p>
  51 <p class="p2"><span class="Apple-tab-span">     </span></p>
  52 <p class="p1"><span class="Apple-tab-span">     </span><b>*keep(n)</b><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>keep only the newest n lines from history. if n is negative, keep the oldest n lines</p>
  53 <p class="p2"><span class="Apple-tab-span">     </span></p>
  54 <p class="p1"><span class="Apple-tab-span">     </span><b>*saveCS(path, forward)</b><span class="Apple-converted-space"> <span class="Apple-tab-span"> </span></span></p>
  55 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>store history as one compileString</p>
  56 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
  57 <p class="p1"><span class="Apple-tab-span">     </span><b>*loadCS(path, forward)</b><span class="Apple-converted-space"> <span class="Apple-tab-span"> </span></span></p>
  58 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>load a history from (compilestring) file.</p>
  59 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
  60 <p class="p1"><span class="Apple-tab-span">     </span><b>*saveStory(path)</b><span class="Apple-converted-space"> <span class="Apple-tab-span">       </span></span></p>
  61 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>store in a file, in historical order as individual code snippets</p>
  62 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
  63 <p class="p1"><span class="Apple-tab-span">     </span><b>*loadStory(path)</b><span class="Apple-converted-space"> <span class="Apple-tab-span">       </span></span></p>
  64 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>read history into current, from a file in story format</p>
  65 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
  66 <p class="p1"><span class="Apple-tab-span">     </span><b>*play(start, end, verbose)</b><span class="Apple-converted-space"> <span class="Apple-tab-span">     </span></span></p>
  67 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>play back current history from start to end line, per default verbose</p>
  68 <p class="p1"><span class="Apple-tab-span">     </span><b>*stop</b> <span class="Apple-tab-span">       </span><span class="Apple-tab-span">    </span>stop current history playback.</p>
  69 <p class="p2"><span class="Apple-tab-span">     </span></p>
  70 <p class="p1"><span class="Apple-tab-span">     </span>*<b>rewrite(path, open)</b></p>
  71 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>Write a properly formatted code file from a history.<span class="Apple-converted-space"> </span></p>
  72 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>The filename is the original name with<span class="Apple-converted-space">  </span>"_rewritten." appended.</p>
  73 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>If open is true (default: true), open a text window with the string.</p>
  74 <p class="p3"><span class="Apple-tab-span">     </span></p>
  75 <p class="p3"><br></p>
  76 <p class="p4"><br></p>
  77 <p class="p4"><br></p>
  78 <p class="p5">// example use:</p>
  79 <p class="p3"><br></p>
  80 <p class="p5"><span class="s4">History</span><span class="s5">.clear.end;<span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></span>// clear to start over</p>
  81 <p class="p5"><span class="s4">History</span><span class="s5">.start; <span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></span>// starts recording, opens log file</p>
  82 <p class="p3"><br></p>
  83 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// execute these lines one by one<span class="Apple-converted-space"> </span></p>
  84 <p class="p6">1 + 2;</p>
  85 <p class="p6">p = <span class="s4">ProxySpace</span>.push(s.boot);</p>
  86 <p class="p6">~a = {<span class="s4">Dust</span>.ar([1,1] * 30 ) * 0.3 }; <span class="s6">//</span></p>
  87 <p class="p6">~a.play;</p>
  88 <p class="p6">~a.end;</p>
  89 <p class="p3"><br></p>
  90 <p class="p5"><span class="s4">History</span><span class="s5">.end;<span class="Apple-tab-span">        </span><span class="Apple-tab-span">    </span></span>// NOTE: change of interface! History.end ends logging now.</p>
  91 <p class="p3"><br></p>
  92 <p class="p3"><br></p>
  93 <p class="p5"><span class="s4">History</span><span class="s5">.document; </span>// create a document with all the changes</p>
  94 <p class="p3"><br></p>
  95 <p class="p6"><span class="s4">History</span>.showLogFile; <span class="s6">//</span></p>
  96 <p class="p3"><br></p>
  97 <p class="p5"><span class="s5">g = </span><span class="s4">History</span><span class="s5">.makeWin(0@20); </span>// make a gui window, put it where you like</p>
  98 <p class="p5"><span class="s5">g = </span><span class="s4">History</span><span class="s5">.makeWin(0@20, 5); </span>// lines to see in textview</p>
  99 <p class="p3"><br></p>
 100 <p class="p5"><span class="s4">History</span><span class="s5">.play;<span class="Apple-tab-span">       </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// posts lines by default;</p>
 101 <p class="p3"><br></p>
 102 <p class="p5"><span class="s4">History</span><span class="s5">.play(verbose: </span><span class="s4">false</span><span class="s5">); </span>// just do it, no posting;</p>
 103 <p class="p3"><br></p>
 104 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// continue recording</p>
 105 <p class="p6"><span class="s4">History</span>.start;<span class="Apple-converted-space"> </span></p>
 106 <p class="p3"><br></p>
 107 <p class="p5"><span class="s5">10 + 200;<span class="Apple-tab-span">   </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// enter 5 more lines</p>
 108 <p class="p6">p.push;</p>
 109 <p class="p6">~b = { <span class="s4">|freq=500|</span> <span class="s4">LFDNoise3</span>.ar(freq.dup(2)) * 0.2 };</p>
 110 <p class="p6">~b.play;</p>
 111 <p class="p6">~b.set(<span class="s7">\freq</span>, 1000);</p>
 112 <p class="p6">~b.end(2);</p>
 113 <p class="p3"><br></p>
 114 <p class="p7">History<span class="s5">.end;</span></p>
 115 <p class="p3"><br></p>
 116 <p class="p3"><br></p>
 117 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// save current history to a file.<span class="Apple-converted-space"> </span></p>
 118 <p class="p8"><span class="s4">History</span><span class="s5">.saveCS(</span>"~/Desktop/TestHist.scd"<span class="s5">);</span></p>
 119 <p class="p8"><span class="s5">h = </span><span class="s4">History</span><span class="s5">.new.loadCS(</span>"~/Desktop/TestHist.scd"<span class="s5">);</span></p>
 120 <p class="p6">h.lines.printcsAll; <span class="s8">""</span>;<span class="Apple-converted-space"> </span></p>
 121 <p class="p3"><br></p>
 122 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// under the hood: History.someCommand goes to History.current:</p>
 123 <p class="p3"><br></p>
 124 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// History.current is where new codelines always go.</p>
 125 <p class="p6">h = <span class="s4">History</span>.current;</p>
 126 <p class="p6">h.lines.printcsAll; <span class="s8">""</span>;</p>
 127 <p class="p5"><span class="s5">h.lineShorts.printcsAll; </span><span class="s8">""</span><span class="s5">; </span>// lineshorts are for gui display</p>
 128 <p class="p3"><br></p>
 129 <p class="p5"><span class="s4">History</span><span class="s5">.enter(</span><span class="s8">"2 + 2"</span><span class="s5">);<span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></span>// make a simple entry by hand.</p>
 130 <p class="p6">h.lines.printcsAll; <span class="s8">""</span>;</p>
 131 <p class="p3"><br></p>
 132 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// one can edit a history:<span class="Apple-converted-space"> </span></p>
 133 <p class="p3"><br></p>
 134 <p class="p5"><span class="s4">History</span><span class="s5">.drop(-1); </span>// drop the oldest memory</p>
 135 <p class="p5"><span class="s4">History</span><span class="s5">.drop(1); </span>// drop the newest memory</p>
 136 <p class="p3"><br></p>
 137 <p class="p6">h.keep(9); <span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span>h.lines.printAll; <span class="s8">""</span>;</p>
 138 <p class="p6">h.drop(3); <span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span>h.lines.printAll; <span class="s8">""</span>;</p>
 139 <p class="p6">h.removeLast;<span class="Apple-tab-span">        </span><span class="Apple-tab-span">    </span>h.lines.printAll;<span class="s8">""</span>;</p>
 140 <p class="p6">h.removeAt([3, 4]);<span class="Apple-tab-span">  </span>h.lines.printAll;<span class="s8">""</span>;</p>
 141 <p class="p3"><br></p>
 142 <p class="p3"><br></p>
 143 <p class="p5">// more examples</p>
 144 <p class="p6"><span class="s4">History</span>.clear.start;</p>
 145 <p class="p3"><br></p>
 146 <p class="p5"><span class="s5">1 + 2;<span class="Apple-tab-span">      </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// code lines get stored</p>
 147 <p class="p3"><br></p>
 148 <p class="p5"><span class="s5">(</span><span class="s4">nil</span><span class="s5"> + 2).postln;<span class="Apple-tab-span">   </span></span>// error lines<span class="Apple-converted-space">  </span>are ignored <span class="Apple-converted-space"> </span></p>
 149 <p class="p3"><br></p>
 150 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// comment-only line is kept, empty lines not:</p>
 151 <p class="p3"><br></p>
 152 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// save and load as text files</p>
 153 <p class="p3"><br></p>
 154 <p class="p3"><br></p>
 155 <p class="p5"><span class="s4">History</span><span class="s5">.saveCS; </span>// save as compilestring for reloading.</p>
 156 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// save with name, in forward time order.</p>
 157 <p class="p8"><span class="s4">History</span><span class="s5">.saveCS(</span>"~/Desktop/testHist.scd"<span class="s5">, forward: </span><span class="s4">true</span><span class="s5">);</span></p>
 158 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// load back in from file</p>
 159 <p class="p6">h = <span class="s4">History</span>.new.loadCS(<span class="s8">"~/Desktop/testHist.scd"</span>, forward: <span class="s4">true</span>);</p>
 160 <p class="p6">h.lines.postcs; <span class="s8">""</span>;</p>
 161 <p class="p3"><br></p>
 162 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// save as human-readable/hand-playable story<span class="Apple-converted-space"> </span></p>
 163 <p class="p5"><span class="s4">History</span><span class="s5">.saveStory<span class="Apple-tab-span">   </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// write all to time-stamped file in historical order</p>
 164 <p class="p5"><span class="s4">History</span><span class="s5">.saveStory(</span><span class="s8">"~/Desktop/myTestStory.scd"</span><span class="s5">);<span class="Apple-tab-span">     </span></span>// ... with given filename.<span class="Apple-converted-space"> </span></p>
 165 <p class="p5"><span class="s4">History</span><span class="s5">.loadStory(</span><span class="s8">"~/Desktop/myTestStory.scd"</span><span class="s5">);<span class="Apple-tab-span">     </span></span>// load from story format file<span class="Apple-converted-space"> </span></p>
 166 <p class="p3"><br></p>
 167 <p class="p5"><span class="s4">Document</span><span class="s5">.open(</span><span class="s8">"~/Desktop/myTestStory.scd"</span><span class="s5">);<span class="Apple-tab-span"> </span></span>// the story file is human-readable.</p>
 168 <p class="p3"><br></p>
 169 <p class="p3"><br></p>
 170 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// Various Internals</p>
 171 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// make a new instance of History by hand:</p>
 172 <p class="p6">h = <span class="s4">History</span>([[0, <span class="s7">\me</span>, <span class="s8">"1+2"</span>], [1.234, <span class="s7">\me</span>, <span class="s8">"q = q ? ();"</span>], [3, <span class="s7">\me</span>, <span class="s8">"\"History\".speak"</span>]]);</p>
 173 <p class="p6">h.lines.printcsAll; <span class="s8">""</span>;</p>
 174 <p class="p6">h.lineShorts.printcsAll; <span class="s8">""</span>;</p>
 175 <p class="p3"><br></p>
 176 <p class="p5"><span class="s5">h.play;<span class="Apple-tab-span">     </span></span>// play it</p>
 177 <p class="p6">h.stop;</p>
 178 <p class="p3"><br></p>
 179 <p class="p3"><br></p>
 180 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// string formatting utils</p>
 181 <p class="p6">h.storyString;</p>
 182 <p class="p6"><span class="s4">History</span>.formatTime(1234.56);</p>
 183 <p class="p6"><span class="s4">History</span>.unformatTime(<span class="s8">"0:20:34.56"</span>);</p>
 184 <p class="p6">(</p>
 185 <p class="p6"><span class="s4">History</span>.prettyString(<span class="s8">"</span></p>
 186 <p class="p8">/* removes line returns at start and end of code strings ... */</p>
 187 <p class="p9"><br></p>
 188 <p class="p6"><span class="s8">"</span>).postcs;</p>
 189 <p class="p5"><span class="s5">)<span class="Apple-tab-span">   </span></span>// convert a line to a short string of n characters for gui display</p>
 190 <p class="p6"><span class="s4">History</span>.shorten(h.lines.first.postcs, 60).postcs;</p>
 191 <p class="p3"><br></p>
 192 <p class="p3"><span class="Apple-tab-span">     </span></p>
 193 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// in networked setups, one may turn off local recording and rely on remote recording:</p>
 194 <p class="p6"><span class="s4">History</span>.recordLocally</p>
 195 <p class="p6"><span class="s4">History</span>.localOff</p>
 196 <p class="p6"><span class="s4">History</span>.recordLocally</p>
 197 <p class="p6"><span class="s4">History</span>.localOn</p>
 198 <p class="p6"><span class="s4">History</span>.recordLocally</p>
 199 <p class="p3"><br></p>
 200 <p class="p3"><br></p>
 201 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// by default, history always logs here (and makes the folder if not there yet):</p>
 202 <p class="p6"><span class="s4">History</span>.logFolder;</p>
 203 <p class="p6"><span class="s4">History</span>.showLogFolder;</p>
 204 <p class="p6"><span class="s4">History</span>.logPath;</p>
 205 <p class="p5"><span class="s4">History</span><span class="s5">.showLogFile;<span class="Apple-converted-space">  </span></span>// current logfile...</p>
 206 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// todo: optionally, one should be able to turn logging off?</p>
 207 <p class="p3"><br></p>
 208 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// filtering lines, to get subsets of all lines by key and/or searchstring:<span class="Apple-converted-space"> </span></p>
 209 <p class="p3"><br></p>
 210 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// get indices for specific keys</p>
 211 <p class="p8"><span class="s5">h = </span><span class="s4">History</span><span class="s5">([[0, </span><span class="s7">\me</span><span class="s5">, </span>"a=1+2"<span class="s5">], [1, </span><span class="s7">\me</span><span class="s5">, </span>"3+5"<span class="s5">], [1.234, </span><span class="s7">\you</span><span class="s5">, </span>"q = q ? ();"<span class="s5">], [3, </span><span class="s7">\her</span><span class="s5">, </span>"\"Herstory ==== \".speak"<span class="s5">]]);</span></p>
 212 <p class="p6">h.keys;</p>
 213 <p class="p6">h.matchKeys(<span class="s7">\me</span>);</p>
 214 <p class="p6">h.matchKeys(<span class="s7">\you</span>);</p>
 215 <p class="p6">h.matchKeys(<span class="s7">\her</span>);</p>
 216 <p class="p5"><span class="s5">h.matchKeys; <span class="Apple-tab-span">       </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// nil if no test</p>
 217 <p class="p5"><span class="s5">h.matchKeys(</span><span class="s7">\all</span><span class="s5">); <span class="Apple-tab-span"> </span></span>// all keys match</p>
 218 <p class="p6">h.matchKeys([<span class="s7">\me</span>, <span class="s7">\her</span>])</p>
 219 <p class="p5"><span class="s5">h.matchKeys(</span><span class="s7">\isidor</span><span class="s5">)<span class="Apple-tab-span">        </span></span>// empty array if no line found</p>
 220 <p class="p3"><br></p>
 221 <p class="p6">h.matchString(<span class="s8">"Herst"</span>);<span class="Apple-converted-space"> </span></p>
 222 <p class="p6">h.matchString(<span class="s8">"q"</span>);<span class="Apple-converted-space"> </span></p>
 223 <p class="p6">h.matchString(<span class="s8">"1+"</span>);<span class="Apple-converted-space"> </span></p>
 224 <p class="p5"><span class="s5">h.matchString(</span><span class="s8">"herStory"</span><span class="s5">, </span><span class="s4">false</span><span class="s5">); </span>// ignoreCase is false by default</p>
 225 <p class="p6">h.matchString(<span class="s8">"herStory"</span>, <span class="s4">true</span>); <span class="s6">// ignoreCase<span class="Apple-converted-space"> </span></span></p>
 226 <p class="p3"><br></p>
 227 <p class="p5"><span class="s5">h.indicesFor([</span><span class="s7">\me</span><span class="s5">, </span><span class="s7">\her</span><span class="s5">], </span><span class="s8">"="</span><span class="s5">);<span class="Apple-converted-space">  </span></span>// indices for line written by \me or \her AND containing "=";</p>
 228 <p class="p3"><br></p>
 229 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// searching is only an interface/access feature,<span class="Apple-converted-space"> </span></p>
 230 <p class="p5"><span class="s5"><span class="Apple-tab-span">    </span></span>// so please read on at <a href="HistoryGui.htm"><span class="s4">HistoryGui</span></a> help ...<span class="Apple-converted-space"> </span></p>
 231 <p class="p6">h.makeWin;</p>
 232 <p class="p4"><br></p>
 233 <p class="p10"><span class="s9">HistoryGui</span>.openHelpFile;</p>
 234 <p class="p11"><br></p>
 235 </body>
 236 </html>