2019-09-18 19:21:21 +02:00
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#!/usr/bin/env retro
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2019-09-18 22:54:36 +02:00
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# Export Muri as HTML
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2019-09-18 19:21:21 +02:00
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This tool processes the code in Unu code blocks, generating HTML
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output. It assumes that CSS will be used to style the results.
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The default CSS is included at the end of this file and will be
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embedded into the generated HTML.
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# Code
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Some characters need to be escaped. The `:put-html` words will
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be used to handle these.
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~~~
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:c:put-html
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$< [ '< s:put ] case
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$> [ '> s:put ] case
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$& [ '& s:put ] case
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ASCII:SPACE [ ' s:put ] case
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c:put ;
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:s:put-html [ c:put-html ] s:for-each ;
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~~~
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2019-09-18 22:54:36 +02:00
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I include my `unu` file processor here as it makes it easy to
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process the relevant lines from the source file.
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2019-09-18 19:21:21 +02:00
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~~~
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{{
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:span '<span_class='text'> s:put s:put-html '</span> s:put ;
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'Fenced var
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:toggle-fence @Fenced not !Fenced ;
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:fenced? (-f) @Fenced ;
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:handle-line (s-)
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fenced? [ over call ] [ span '<br> s:put nl ] choose ;
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---reveal---
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:unu (sq-)
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swap [ dup '~~~ s:eq?
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[ toggle-fence s:put '<br> s:put nl ]
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[ handle-line ] choose
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] file:for-each-line drop ;
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}}
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~~~
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Formatting is pretty straightforward. I have a `span` word to
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generate the HTML for the token, and a `format` word to identify
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the token type and use `span`.
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2019-09-18 22:54:36 +02:00
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For Muri this is really easy as the character in the first column
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indicates how the line should be processed.
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I have:
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: create a label
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s inline a string (null terminated)
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r assemble a pointer to a label
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d convert to decimal and inline
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i assemble instruction bundle
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Everything else gets treated as text.
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2019-09-18 19:21:21 +02:00
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~~~
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:span '<span_class=' s:put s:put ''> s:put s:put-html '</span> s:put ;
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:format (s-)
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(ignore_empty_tokens)
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dup s:length n:zero? [ drop ] if;
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(tokens_with_prefixes)
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dup fetch
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$: [ 'name span ] case
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$s [ 'string span ] case
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$d [ 'number span ] case
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$r [ 'pointer span ] case
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$i [ 'instr span ] case
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'text span ;
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~~~
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Next is the HTML page generation. This has words to generate
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the header, embeds the CSS (from the end of this file), and
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then processes the lines in the source file to generate the
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body.
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Output is written to stdout.
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~~~
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'CSS var
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:embed-css
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'<style> s:put nl
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2020-09-14 21:55:02 +02:00
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script:name [ dup '/*_CSS_Begins_*/ s:eq? [ &CSS v:on ] if
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@CSS [ s:put nl ] [ drop ] choose ] file:for-each-line
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2019-09-18 19:21:21 +02:00
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'</style> s:put nl ;
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:header
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'<!DOCTYPE_html> s:put nl
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'<html> s:put nl
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'<head> s:put nl embed-css '</head> s:put nl ;
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:body (s-)
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'<body> s:put nl
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[ format
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'<br> s:put nl ] unu
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'</body> s:put nl ;
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:footer
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'</html> s:put nl ;
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:generate (s-)
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header body footer ;
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~~~
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And finally, run it.
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~~~
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2020-09-14 21:55:02 +02:00
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#0 script:get-argument generate
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2019-09-18 19:21:21 +02:00
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~~~
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# CSS
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/* CSS Begins */
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* {
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background: #111;
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color: white;
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font-family: monospace;
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}
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.text {
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color: white;
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}
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.name {
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color: red;
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}
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.string {
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color: yellow;
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}
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.pointer {
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color: orange;
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}
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.number {
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color: cyan;
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}
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.instr {
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color: greenyellow;
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}
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