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| 1 | +Prism.languages.metafont = { |
| 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. |
| 3 | + 'comment': { |
| 4 | + pattern: /%.*/, |
| 5 | + greedy: true |
| 6 | + }, |
| 7 | + 'string': { |
| 8 | + pattern: /"[^\r\n"]*"/, |
| 9 | + greedy: true |
| 10 | + }, |
| 11 | + 'number': /\d*\.?\d+/, |
| 12 | + 'boolean': /\b(?:false|true)\b/, |
| 13 | + 'punctuation': [ |
| 14 | + /[,;()]/, |
| 15 | + { |
| 16 | + pattern: /(^|[^{}])(?:\{|\})(?![{}])/, |
| 17 | + lookbehind: true |
| 18 | + }, |
| 19 | + { |
| 20 | + pattern: /(^|[^[])\[(?!\[)/, |
| 21 | + lookbehind: true |
| 22 | + }, |
| 23 | + { |
| 24 | + pattern: /(^|[^\]])\](?!\])/, |
| 25 | + lookbehind: true |
| 26 | + } |
| 27 | + ], |
| 28 | + 'constant': [ |
| 29 | + { |
| 30 | + pattern: /(^|[^!?])\?\?\?(?![!?])/, |
| 31 | + lookbehind: true |
| 32 | + }, |
| 33 | + { |
| 34 | + pattern: /(^|[^/*\\])(?:\\|\\\\)(?![/*\\])/, |
| 35 | + lookbehind: true |
| 36 | + }, |
| 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/ |
| 38 | + ], |
| 39 | + 'quantity': { |
| 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/, |
| 41 | + alias: 'keyword' |
| 42 | + }, |
| 43 | + 'command': { |
| 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/, |
| 45 | + alias: 'builtin' |
| 46 | + }, |
| 47 | + 'operator': [ |
| 48 | + { |
| 49 | + pattern: /(^|[^>=<:|])(?:<|<=|=|=:|\|=:|\|=:>|=:\|>|=:\||\|=:\||\|=:\|>|\|=:\|>>|>|>=|:|:=|<>|::|\|\|:)(?![>=<:|])/, |
| 50 | + lookbehind: true |
| 51 | + }, |
| 52 | + { |
| 53 | + pattern: /(^|[^+-])(?:\+|\+\+|-{1,3}|\+-\+)(?![+-])/, |
| 54 | + lookbehind: true |
| 55 | + }, |
| 56 | + { |
| 57 | + pattern: /(^|[^/*\\])(?:\*|\*\*|\/)(?![/*\\])/, |
| 58 | + lookbehind: true |
| 59 | + }, |
| 60 | + { |
| 61 | + pattern: /(^|[^.])(?:\.{2,3})(?!\.)/, |
| 62 | + lookbehind: true |
| 63 | + }, |
| 64 | + { |
| 65 | + pattern: /(^|[^@#&$])&(?![@#&$])/, |
| 66 | + lookbehind: true |
| 67 | + }, |
| 68 | + /\b(?:and|not|or)\b/ |
| 69 | + ], |
| 70 | + 'macro': { |
| 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/, |
| 72 | + alias: 'function' |
| 73 | + }, |
| 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/, |
| 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/, |
| 76 | + 'type': { |
| 77 | + pattern: /\b(?:boolean|expr|numeric|pair|path|pen|picture|primary|secondary|string|suffix|tertiary|text|transform)\b/, |
| 78 | + alias: 'property' |
| 79 | + }, |
| 80 | + 'variable': { |
| 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/, |
| 82 | + lookbehind: true |
| 83 | + } |
| 84 | +}; |
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