| 1 | Prism.languages.metafont = {
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| 2 | // Syntax of METAFONT with the added (public) elements of PlainMETAFONT. Except for internal quantities they are expected to be rarely redefined. Freely inspired by the syntax of Christophe Grandsire for the Crimson Editor.
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| 3 | 'comment': {
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| 4 | pattern: /%.*/,
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| 5 | greedy: true
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| 6 | },
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| 7 | 'string': {
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| 8 | pattern: /"[^\r\n"]*"/,
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| 9 | greedy: true
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| 10 | },
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| 11 | 'number': /\d*\.?\d+/,
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| 12 | 'boolean': /\b(?:false|true)\b/,
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| 13 | 'punctuation': [
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| 14 | /[,;()]/,
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| 15 | {
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| 16 | pattern: /(^|[^{}])(?:\{|\})(?![{}])/,
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| 17 | lookbehind: true
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| 18 | },
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| 19 | {
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| 20 | pattern: /(^|[^[])\[(?!\[)/,
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| 21 | lookbehind: true
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| 22 | },
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| 23 | {
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| 24 | pattern: /(^|[^\]])\](?!\])/,
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| 25 | lookbehind: true
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| 26 | }
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| 27 | ],
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| 28 | 'constant': [
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| 29 | {
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| 30 | pattern: /(^|[^!?])\?\?\?(?![!?])/,
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| 31 | lookbehind: true
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| 32 | },
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| 33 | {
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| 34 | pattern: /(^|[^/*\\])(?:\\|\\\\)(?![/*\\])/,
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| 35 | lookbehind: true
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| 36 | },
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| 37 | /\b(?:_|blankpicture|bp|cc|cm|dd|ditto|down|eps|epsilon|fullcircle|halfcircle|identity|in|infinity|left|mm|nullpen|nullpicture|origin|pc|penrazor|penspeck|pensquare|penstroke|proof|pt|quartercircle|relax|right|smoke|unitpixel|unitsquare|up)\b/
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| 38 | ],
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| 39 | 'quantity': {
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| 40 | pattern: /\b(?:autorounding|blacker|boundarychar|charcode|chardp|chardx|chardy|charext|charht|charic|charwd|currentwindow|day|designsize|displaying|fillin|fontmaking|granularity|hppp|join_radius|month|o_correction|pausing|pen_(?:bot|lft|rt|top)|pixels_per_inch|proofing|showstopping|smoothing|time|tolerance|tracingcapsules|tracingchoices|tracingcommands|tracingedges|tracingequations|tracingmacros|tracingonline|tracingoutput|tracingpens|tracingrestores|tracingspecs|tracingstats|tracingtitles|turningcheck|vppp|warningcheck|xoffset|year|yoffset)\b/,
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| 41 | alias: 'keyword'
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| 42 | },
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| 43 | 'command': {
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| 44 | pattern: /\b(?:addto|batchmode|charlist|cull|display|errhelp|errmessage|errorstopmode|everyjob|extensible|fontdimen|headerbyte|inner|interim|let|ligtable|message|newinternal|nonstopmode|numspecial|openwindow|outer|randomseed|save|scrollmode|shipout|show|showdependencies|showstats|showtoken|showvariable|special)\b/,
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| 45 | alias: 'builtin'
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| 46 | },
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| 47 | 'operator': [
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| 48 | {
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| 49 | pattern: /(^|[^>=<:|])(?:<|<=|=|=:|\|=:|\|=:>|=:\|>|=:\||\|=:\||\|=:\|>|\|=:\|>>|>|>=|:|:=|<>|::|\|\|:)(?![>=<:|])/,
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| 50 | lookbehind: true
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| 51 | },
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| 52 | {
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| 53 | pattern: /(^|[^+-])(?:\+|\+\+|-{1,3}|\+-\+)(?![+-])/,
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| 54 | lookbehind: true
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| 55 | },
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| 56 | {
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| 57 | pattern: /(^|[^/*\\])(?:\*|\*\*|\/)(?![/*\\])/,
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| 58 | lookbehind: true
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| 59 | },
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| 60 | {
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| 61 | pattern: /(^|[^.])(?:\.{2,3})(?!\.)/,
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| 62 | lookbehind: true
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| 63 | },
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| 64 | {
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| 65 | pattern: /(^|[^@#&$])&(?![@#&$])/,
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| 66 | lookbehind: true
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| 67 | },
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| 68 | /\b(?:and|not|or)\b/
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| 69 | ],
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| 70 | 'macro': {
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| 71 | pattern: /\b(?:abs|beginchar|bot|byte|capsule_def|ceiling|change_width|clear_pen_memory|clearit|clearpen|clearxy|counterclockwise|cullit|cutdraw|cutoff|decr|define_blacker_pixels|define_corrected_pixels|define_good_x_pixels|define_good_y_pixels|define_horizontal_corrected_pixels|define_pixels|define_whole_blacker_pixels|define_whole_pixels|define_whole_vertical_blacker_pixels|define_whole_vertical_pixels|dir|direction|directionpoint|div|dotprod|downto|draw|drawdot|endchar|erase|fill|filldraw|fix_units|flex|font_coding_scheme|font_extra_space|font_identifier|font_normal_shrink|font_normal_space|font_normal_stretch|font_quad|font_size|font_slant|font_x_height|gfcorners|gobble|gobbled|good\.(?:bot|lft|rt|top|x|y)|grayfont|hide|hround|imagerules|incr|interact|interpath|intersectionpoint|inverse|italcorr|killtext|labelfont|labels|lft|loggingall|lowres_fix|makegrid|makelabel(?:\.(?:bot|lft|rt|top)(?:\.nodot)?)?|max|min|mod|mode_def|mode_setup|nodisplays|notransforms|numtok|openit|penlabels|penpos|pickup|proofoffset|proofrule|proofrulethickness|range|reflectedabout|rotatedabout|rotatedaround|round|rt|savepen|screenchars|screenrule|screenstrokes|shipit|showit|slantfont|softjoin|solve|stop|superellipse|tensepath|thru|titlefont|top|tracingall|tracingnone|undraw|undrawdot|unfill|unfilldraw|upto|vround)\b/,
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| 72 | alias: 'function'
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| 73 | },
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| 74 | 'builtin': /\b(?:ASCII|angle|char|cosd|decimal|directiontime|floor|hex|intersectiontimes|jobname|known|length|makepath|makepen|mexp|mlog|normaldeviate|oct|odd|pencircle|penoffset|point|postcontrol|precontrol|reverse|rotated|sind|sqrt|str|subpath|substring|totalweight|turningnumber|uniformdeviate|unknown|xpart|xxpart|xypart|ypart|yxpart|yypart)\b/,
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| 75 | 'keyword': /\b(?:also|at|atleast|begingroup|charexists|contour|controls|curl|cycle|def|delimiters|doublepath|dropping|dump|else|elseif|end|enddef|endfor|endgroup|endinput|exitif|exitunless|expandafter|fi|for|forever|forsuffixes|from|if|input|inwindow|keeping|kern|of|primarydef|quote|readstring|scaled|scantokens|secondarydef|shifted|skipto|slanted|step|tension|tertiarydef|to|transformed|until|vardef|withpen|withweight|xscaled|yscaled|zscaled)\b/,
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| 76 | 'type': {
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| 77 | pattern: /\b(?:boolean|expr|numeric|pair|path|pen|picture|primary|secondary|string|suffix|tertiary|text|transform)\b/,
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| 78 | alias: 'property'
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| 79 | },
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| 80 | 'variable': {
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| 81 | pattern: /(^|[^@#&$])(?:@#|#@|#|@)(?![@#&$])|\b(?:aspect_ratio|currentpen|currentpicture|currenttransform|d|extra_beginchar|extra_endchar|extra_setup|h|localfont|mag|mode|screen_cols|screen_rows|w|whatever|x|y|z)\b/,
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| 82 | lookbehind: true
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| 83 | }
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| 84 | };
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