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Added AviSynth language definition (#3071)
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Zinfidel committed Sep 15, 2021
1 parent ffb2043 commit 746a4b1
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2 changes: 1 addition & 1 deletion components.js

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5 changes: 5 additions & 0 deletions components.json
Expand Up @@ -160,6 +160,11 @@
"title": "AutoIt",
"owner": "Golmote"
},
"avisynth": {
"title": "AviSynth",
"alias": "avs",
"owner": "Zinfidel"
},
"avro-idl": {
"title":"Avro IDL",
"alias": "avdl",
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188 changes: 188 additions & 0 deletions components/prism-avisynth.js
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// http://avisynth.nl/index.php/The_full_AviSynth_grammar
(function (Prism) {

function replace(pattern, replacements) {
return pattern.replace(/<<(\d+)>>/g, function (m, index) {
return replacements[+index];
});
}

function re(pattern, replacements, flags) {
return RegExp(replace(pattern, replacements), flags || '');
}

var types = /clip|int|float|string|bool|val/.source;
var internals = [
// bools
/is(?:bool|clip|float|int|string)|defined|(?:var|(?:internal)?function)?exists?/.source,
// control
/apply|assert|default|eval|import|select|nop|undefined/.source,
// global
/set(?:memorymax|cachemode|maxcpu|workingdir|planarlegacyalignment)|opt_(?:allowfloataudio|usewaveextensible|dwchannelmask|avipadscanlines|vdubplanarhack|enable_(?:v210|y3_10_10|y3_10_16|b64a|planartopackedrgb))/.source,
// conv
/hex(?:value)?|value/.source,
// numeric
/max|min|muldiv|floor|ceil|round|fmod|pi|exp|log(?:10)?|pow|sqrt|abs|sign|frac|rand|spline|continued(?:numerator|denominator)?/.source,
// trig
/a?sinh?|a?cosh?|a?tan[2h]?/.source,
// bit
/(?:bit(?:and|not|x?or|[lr]?shift[aslu]?|sh[lr]|sa[lr]|[lr]rotatel?|ro[rl]|te?st|set(?:count)?|cl(?:ea)?r|ch(?:an)?ge?))/.source,
// runtime
/average(?:luma|chroma[uv]|[bgr])|(?:luma|chroma[uv]|rgb|[rgb]|[yuv](?=difference(?:fromprevious|tonext)))difference(?:fromprevious|tonext)?|[yuvrgb]plane(?:median|min|max|minmaxdifference)/.source,
// script
/script(?:name(?:utf8)?|file(?:utf8)?|dir(?:utf8)?)|setlogparams|logmsg|getprocessinfo/.source,
// string
/[lu]case|str(?:toutf8|fromutf8|len|cmpi?)|(?:rev|left|right|mid|find|replace|fill)str|format|trim(?:left|right|all)|chr|ord|time/.source,
// version
/version(?:number|string)|isversionorgreater/.source,
// helper
/buildpixeltype|colorspacenametopixeltype/.source,
// avsplus
/setfiltermtmode|prefetch|addautoloaddir|on(?:cpu|cuda)/.source
].join('|');
var properties = [
// content
/has(?:audio|video)/.source,
// resolution
/width|height/.source,
// framerate
/frame(?:count|rate)|framerate(?:numerator|denominator)/.source,
// interlacing
/is(?:field|frame)based|getparity/.source,
// color format
/pixeltype|is(?:planar(?:rgba?)?|interleaved|rgb(?:24|32|48|64)?|y(?:8|u(?:y2|va?))?|yv(?:12|16|24|411)|420|422|444|packedrgb)|hasalpha|componentsize|numcomponents|bitspercomponent/.source,
// audio
/audio(?:rate|duration|length(?:[fs]|lo|hi)?|channels|bits)|isaudio(?:float|int)/.source
].join('|');
var filters = [
// source
/avi(?:file)?source|opendmlsource|directshowsource|image(?:reader|source|sourceanim)|segmented(?:avisource|directshowsource)|wavsource/.source,
// color
/coloryuv|convertto(?:RGB(?:24|32|48|64)|(?:planar)?RGBA?|Y8?|YV(?:12|16|24|411)|YUVA?(?:444|422|420|411)|YUY2)|convertbacktoyuy2|fixluminance|gr[ae]yscale|invert|levels|limiter|mergea?rgb|merge(?:luma|chroma)|rgbadjust|show(?:red|green|blue|alpha)|swapuv|tweak|[uv]toy8?|ytouv/.source,
// overlay
/(?:colorkey|reset)mask|mask(?:hs)?|layer|merge|overlay|subtract/.source,
// geometry
/addborders|crop(?:bottom)?|flip(?:horizontal|vertical)|letterbox|(?:horizontal|vertical)?reduceby2|(?:bicubic|bilinear|blackman|gauss|lanczos|lanczos4|point|sinc|spline(?:16|36|64))resize|skewrows|turn(?:left|right|180)/.source,
// pixel
/blur|sharpen|generalconvolution|(?:spatial|temporal)soften|fixbrokenchromaupsampling/.source,
// timeline
/trim|(?:un)?alignedsplice|(?:assume|assumescaled|change|convert)FPS|(?:delete|duplicate)frame|dissolve|fade(?:in|out|io)[02]?|freezeframe|interleave|loop|reverse|select(?:even|odd|(?:range)?every)/.source,
// interlace
/assume(?:frame|field)based|assume[bt]ff|bob|complementparity|doubleweave|peculiarblend|pulldown|separate(?:columns|rows|fields)|swapfields|weave(?:columns|rows)?/.source,
// audio
/amplify(?:db)?|assumesamplerate|audiodub(?:ex)?|audiotrim|convertaudioto(?:(?:8|16|24|32)bit|float)|converttomono|delayaudio|ensurevbrmp3sync|get(?:left|right)?channel|kill(?:audio|video)|mergechannels|mixaudio|monotostereo|normalize|resampleaudio|supereq|ssrc|timestretch/.source,
// conditional
/conditional(?:filter|select|reader)|frameevaluate|scriptclip|writefile(?:if|start|end)?|animate|applyrange|tcp(?:server|source)/.source,
// export
/imagewriter/.source,
// debug
/subtitle|blankclip|blackness|colorbars(?:hd)?|compare|dumpfiltergraph|setgraphanalysis|echo|histogram|info|messageclip|preroll|showfiveversions|show(?:framenumber|smpte|time)|stack(?:horizontal|vertical)|tone|version/.source
].join('|');
var allinternals = [internals, properties, filters].join('|');

Prism.languages.avisynth = {
'comment': [
{
// Matches [* *] nestable block comments, but only supports 1 level of nested comments
// /\[\*(?:[^\[*]|\[(?!\*)|\*(?!\])|<self>)*\*\]/
pattern: /(^|[^\\])\[\*(?:[^\[*]|\[(?!\*)|\*(?!\])|\[\*(?:[^\[*]|\[(?!\*)|\*(?!\]))*\*\])*\*\]/,
lookbehind: true,
greedy: true
},
{
// Matches /* */ block comments
pattern: /(^|[^\\])\/\*[\s\S]*?(?:\*\/|$)/,
lookbehind: true,
greedy: true
},
{
// Matches # comments
pattern: /(^|[^\\$])#.*/,
lookbehind: true,
greedy: true
}
],

// Handle before strings because optional arguments are surrounded by double quotes
'argument': {
pattern: re(/\b(?:<<0>>)\s+("?)\w+\1/.source, [types], 'i'),
inside: {
'keyword': /^\w+/
}
},

// Optional argument assignment
'argument-label': {
pattern: /([,(][\s\\]*)\w+\s*=(?!=)/,
lookbehind: true,
inside: {
'argument-name': {
pattern: /^\w+/,
alias: 'punctuation'
},
'punctuation': /=$/
}
},

'string': [
{
// triple double-quoted
pattern: /"""[\s\S]*?"""/,
greedy: true,
},
{
// single double-quoted
pattern: /"(?:\\(?:\r\n|[\s\S])|[^"\\\r\n])*"/,
greedy: true,
inside: {
'constant': {
// These *are* case-sensitive!
pattern: /\b(?:DEFAULT_MT_MODE|(?:SCRIPT|MAINSCRIPT|PROGRAM)DIR|(?:USER|MACHINE)_(?:PLUS|CLASSIC)_PLUGINS)\b/
}
}
}
],

// The special "last" variable that takes the value of the last implicitly returned clip
'variable': /\b(?:last)\b/i,

'boolean': /\b(?:true|false|yes|no)\b/i,

'keyword': /\b(?:function|global|return|try|catch|if|else|while|for|__END__)\b/i,

'constant': /\bMT_(?:NICE_FILTER|MULTI_INSTANCE|SERIALIZED|SPECIAL_MT)\b/,

// AviSynth's internal functions, filters, and properties
'builtin-function': {
pattern: re(/\b(?:<<0>>)\b/.source, [allinternals], 'i'),
alias: 'function'
},

'type-cast': {
pattern: re(/\b(?:<<0>>)(?=\s*\()/.source, [types], 'i'),
alias: 'keyword'
},

// External/user-defined filters
'function': {
pattern: /\b[a-z_]\w*(?=\s*\()|(\.)[a-z_]\w*\b/i,
lookbehind: true
},

// Matches a \ as the first or last character on a line
'line-continuation': {
pattern: /(^[ \t]*)\\|\\(?=[ \t]*$)/m,
lookbehind: true,
alias: 'punctuation'
},

'number': /\B\$(?:[\da-f]{6}|[\da-f]{8})\b|(?:(?:\b|\B-)\d+(?:\.\d*)?\b|\B\.\d+\b)/i,

'operator': /\+\+?|[!=<>]=?|&&|\|\||[?:*/%-]/,

'punctuation': /[{}\[\]();,.]/
};

Prism.languages.avs = Prism.languages.avisynth;

}(Prism));
1 change: 1 addition & 0 deletions components/prism-avisynth.min.js

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24 changes: 24 additions & 0 deletions examples/prism-avisynth.html
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<h2>Full Example</h2>
<pre><code>/*
* Example AviSynth script for PrismJS demonstration.
* By Zinfidel
*/

SetFilterMTMode("DEFAULT_MT_MODE", MT_MULTI_INSTANCE)
AddAutoloadDir("MAINSCRIPTDIR/programs/plugins")

# Multiplies clip size and changes aspect ratio to 4:3
function CorrectAspectRatio(clip c, int scaleFactor, bool "useNearestNeighbor") {
useNearestNeighbor = default(useNearestNeighbor, false)
stretchFactor = (c.Height * (4 / 3)) / c.Width

return useNearestNeighbor \
? c.PointResize(c.Width * scaleFactor * stretchFactor, c.Height * scaleFactor) \
: c.Lanczos4Resize(c.Width * scaleFactor * stretchFactor, c.Height * scaleFactor)
}

AviSource("myclip.avi")
last.CorrectAspectRatio(3, yes)


Prefetch(4)</code></pre>
1 change: 1 addition & 0 deletions plugins/autoloader/prism-autoloader.js
Expand Up @@ -172,6 +172,7 @@
"js": "javascript",
"g4": "antlr4",
"adoc": "asciidoc",
"avs": "avisynth",
"avdl": "avro-idl",
"shell": "bash",
"shortcode": "bbcode",
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