From 3307a5ac1d2819ecbde0763aef3102828e13ae44 Mon Sep 17 00:00:00 2001 From: John MacFarlane Date: Wed, 17 Sep 2014 13:52:08 -0700 Subject: Use helper functions to simplify code. --- js/stmd.js | 122 ++++++++++++++++++++++++------------------------------------- 1 file changed, 47 insertions(+), 75 deletions(-) diff --git a/js/stmd.js b/js/stmd.js index c5268d8..72e0306 100755 --- a/js/stmd.js +++ b/js/stmd.js @@ -260,6 +260,18 @@ can_close: can_close }; }; + var Emph = function(ils) { + return {t: 'Emph', c: ils}; + } + + var Strong = function(ils) { + return {t: 'Strong', c: ils}; + } + + var Str = function(s) { + return {t: 'Str', c: s}; + } + // Attempt to parse emphasis or strong emphasis. var parseEmphasis = function() { var startpos = this.pos; @@ -285,7 +297,7 @@ if (numdelims >= 4 || !res.can_open) { this.pos += numdelims; - return [{t: 'Str', c: this.subject.slice(startpos, startpos + numdelims)}]; + return [Str(this.subject.slice(startpos, startpos + numdelims))]; } this.pos += numdelims; @@ -317,7 +329,7 @@ case 1: // ***a if (numdelims === 3 && can_close) { this.pos += 3; - return [{t: 'Strong', c: [{t: 'Emph', c: first}]}]; + return [Strong([Emph(first)])]; } else if (numdelims === 2 && can_close) { this.pos += 2; current = second; @@ -333,7 +345,7 @@ case 2: // **a if (numdelims === 2 && can_close) { this.pos += 2; - return [{t: 'Strong', c: first}]; + return [Strong(first)]; } else if (numdelims === 1 && can_open) { this.pos += 1; current = second; @@ -344,7 +356,7 @@ case 3: // *a if (numdelims === 1 && can_close) { this.pos += 1; - return [{t: 'Emph', c: first}]; + return [Emph(first)]; } else if (numdelims === 2 && can_open) { this.pos += 2; current = second; @@ -355,86 +367,59 @@ case 4: // ***a**b if (numdelims === 3 && can_close) { this.pos += 3; - return [{t: 'Strong', - c: [{t: 'Emph', - c: first.concat( - [{t: 'Str', c: c+c}], - second)}]}]; + return [Strong([Emph(first.concat([Str(c+c)], second))])]; } else if (numdelims === 2 && can_close) { this.pos += 2; - return [{t: 'Strong', - c: [{t: 'Str', c: c+c+c}].concat( - first, - [{t: 'Strong', c: second}])}]; + return [Strong([Str(c+c+c)].concat( + first, + [Strong(second)]))]; } else if (numdelims === 1 && can_close) { this.pos += 1; - return [{t: 'Emph', - c: [{t: 'Strong', c: first}].concat(second)}]; + return [Emph([Strong(first)].concat(second))]; } break; case 5: // ***a*b if (numdelims === 3 && can_close) { this.pos += 3; - return [{t: 'Strong', - c: [{t: 'Emph', - c: first.concat( - [{t: 'Str', c: c}], - second)}]}]; + return [Strong([Emph(first.concat([Str(c)], second))])]; } else if (numdelims === 2 && can_close) { this.pos += 2; - return [{t: 'Strong', - c: [{t: 'Emph', c: first}].concat(second)}]; + return [Strong([Emph(first)].concat(second))]; } else if (numdelims === 1 && can_close) { this.pos += 1; - return [{t: 'Strong', - c: [{t: 'Str', c: c+c+c}].concat( - first, - [{t: 'Emph', c: second}])}]; + return [Strong([Str(c+c+c)].concat( + first, + [Emph(second)]))]; } break; case 6: // ***a** b if (numdelims === 3 && can_close) { this.pos += 3; - return [{t: 'Strong', - c: [{t: 'Emph', - c: first.concat( - [{t: 'Str', c: c+c}], - second)}]}]; + return [Strong([Emph(first.concat([Str(c+c)], second))])]; } else if (numdelims === 1 && can_close) { this.pos += 1; - return [{t: 'Emph', - c: [{t: 'Strong', c: first}].concat(second)}]; + return [Emph([Strong(first)].concat(second))]; } break; case 7: // ***a* b if (numdelims === 3 && can_close) { this.pos += 3; - return [{t: 'Strong', - c: [{t: 'Emph', - c: first.concat( - [{t: 'Str', c: c}], - second)}]}]; + return [Strong([Emph(first.concat([Str(c)], second))])]; } else if (numdelims === 2 && can_close) { this.pos += 2; - return [{t: 'Strong', - c: [{t: 'Emph', c: first}].concat(second)}]; + return [Strong([Emph(first)].concat(second))]; } break; case 8: // **a *b if (numdelims === 3 && can_close) { this.pos += 3; - return [{t: 'Strong', - c: first.concat([{t: 'Emph', - c: second}])}]; + return [Strong(first.concat([Emph(second)]))]; } else if (numdelims === 2 && can_close) { this.pos += 2; - return [{t: 'Strong', - c: first.concat( - [{t: 'Str', c: c}], - second)}]; + return [Strong(first.concat([Str(c)], second))]; } else if (numdelims === 1 && can_close) { this.pos += 1; - first = first.concat([{t: 'Emph', c: second}]); + first.push(Emph(second)); current = first; state = 2; continue; @@ -443,21 +428,16 @@ case 9: // *a **b if (numdelims === 3 && can_close) { this.pos += 3; - return [{t: 'Emph', - c: first.concat([{t: 'Strong', - c: second}])}]; + return [(Emph(first.concat([Strong(second)])))]; } else if (numdelims === 2 && can_close) { this.pos += 2; - first = first.concat([{t: 'Strong', c: second}]); + first.push(Strong(second)); current = first; state = 3; continue; } else if (numdelims === 1 && can_close) { this.pos += 1; - return [{t: 'Emph', - c: first.concat( - [{t: 'Str', c: c+c}], - second)}]; + return [Emph(first.concat([Str(c+c)], second))]; } break; default: @@ -475,33 +455,25 @@ switch (state) { case 1: // ***a - return [{t: 'Str', c: c+c+c}].concat(first); + return [Str(c+c+c)].concat(first); case 2: // **a - return [{t: 'Str', c: c+c}].concat(first); + return [Str(c+c)].concat(first); case 3: // *a - return [{t: 'Str', c: c}].concat(first); + return [Str(c)].concat(first); case 4: // ***a**b case 6: // ***a** b - return [{t: 'Str', c: c+c+c}] - .concat(first, - [{t: 'Str', c: c+c}], - second); + return [Str(c+c+c)] + .concat(first, [Str(c+c)], second); case 5: // ***a*b case 7: // ***a* b - return [{t: 'Str', c: c+c+c}] - .concat(first, - [{t: 'Str', c: c}], - second); + return [Str(c+c+c)] + .concat(first, [Str(c)], second); case 8: // **a *b - return [{t: 'Str', c: c+c}] - .concat(first, - [{t: 'Str', c: c}], - second); + return [Str(c+c)] + .concat(first, [Str(c)], second); case 9: // *a **b - return [{t: 'Str', c: c}] - .concat(first, - [{t: 'Str', c: c+c}], - second); + return [Str(c)] + .concat(first, [Str(c+c)], second); default: console.log("Unknown state, parseEmphasis"); // shouldn't happen -- cgit v1.2.3