lambdaway :: sweet_little

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_h1 sweet little language
{center See a better approach in [[story]] and [[story2]]}
_p Following [[http://ward.asia.wiki.org/view/sweet-little-language| http://ward.asia.wiki.org/view/sweet-little-language]]. 
_p Edit the text field below then click on the {b RUN} button to display the text in red color.

{div {@ id="lt_input" contenteditable style="border:1px solid #888; padding:5px;"} Hello World}
{input {@ type="button" value="RUN"
          onclick="document.getElementById('lt_output').innerHTML
                 += ' {br} ' + document.getElementById('lt_input').innerHTML"}}
{div {@ id="lt_output" style="border:1px solid #888; padding:5px; color:#f00"}...}

_h2 code

{pre °°
{div 
 {@     id = "lt_input" contenteditable
     style = "border:1px solid #888; padding:5px;" 
 } 
 Hello World 
}

{input 
 {@    type = "button" 
      value = "RUN"
    onclick = "document.getElementById('lt_output').innerHTML += ' {br} ' 
             + document.getElementById('lt_input').innerHTML"}}

{div 
 {@    id = "lt_output"
    style = "border:1px solid #888; padding:5px; color:#f00"
 }
 ...
}
°°}

{hr}

_h2 from [[sweet-little-language|http://ward.asia.wiki.org/view/sweet-little-language]]

_p This is the ward's v2.html version, slightly adapted to the wiki, lambdatank. Open the page_editor to read the code.

{h1 Sweet Little Interpreter}
{div {@ class="program"}
 {pre {@ id="program" contenteditable="true"}Hello World}}

{div {@ class="buttons"}
  {input {@ type="button" value="Run" onclick="run()"}}}
   {div {@ class="output"}
        {pre {@ id="trace"}}
        {pre {@ id="output"}}}
 
{script 
    // commented to avoid conflicts with lamdatank
      // Save program in local storage between reloads
      let version = location.pathname.split('/').pop()
      if (localStorage[version]) program.innerText = localStorage[version]
      program.addEventListener('focusout', event => { localStorage[version] = program.innerText })

// Parse and execute the program, display output

function run () {
        execute(parse(program.innerText))
      }

function parse (text) {
        return text.split(/\n+/).map(line => line.split(/\s+/))
      }

function execute (code) {
        for (let line of code) {
          for (let word of line) {
            output.innerText += word + ' '
          }
          output.innerText += "\n"
        }
      }
      
}  ;; end script