JSON をそこそこ見やすくする CUI ツールを Objective-C で作ったときの話

第50回 Cocoa勉強会関西 - iOS/Macアプリ開発勉強会
発表資料

Transcript

1. JSON Λͦͦ͜͜ݟ΍͘͢͢Δ
   CUI πʔϧΛ࡞ͬͨͱ͖ͷ࿩
   @griffin_stewie
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2. ࣗݾ঺հ
   •େࡕͰ iOS ΞϓϦ։ൃͷ࢓ࣄΛ͍ͯ͠
   ·͢
   •Cocoa ྺ͸ 5 ೥ఔ౓
   •SafariGestures ͱ͔ SafariTabMemento ͱ
   ͔ Safari ͷ SIMBL ϓϥάΠϯΛ
   @canberland ͱҰॹʹ࡞ͬͯ·ͨ͠ɻ
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3. ຊ୊
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4. CUI ͱ͸
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5. •Character
   •User
   •Interface
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6. ࠇ͍ը໘ʹढจ
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7. ී௨͸ LL ܥݴޠͰαΫοͱ࡞
   Δײ͡
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8. Ͱ΋ɺ
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9. •Ruby Ҏ֎͞Θͬͨ͜ͱͳ͍
   •֎෦ϥΠϒϥϦΛಉࠝͯ͠഑෍Ͱ͖
   Δͷʁ
   •ௐ΂ΔͷΊΜͲ͍͘͞
   •͋͊ ΊΜͲ͍͘͞
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10. Ͱɺࣗ෼ʹͱͬͯͷ CUI
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11. •Cocoa Ͱ
    •U·͍͜ͱ΍Ε͹
    •I͍Μ͡ΌͶʁ
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12. ͯͳΘ͚Ͱ Objective-C Ͱ࡞ͬ
    ͨͱ͖ͷ࿩
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13. ಈػ
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14. JSON ͕ݟʹ͔͔ͬͨ͘Β
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15. 13೥6݄1೔౔༵೔
    

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16. python -m json.tool
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17. 13೥6݄1೔౔༵೔
    

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18. ೔ຊޠ͕ಡΊͳ͍
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19. ࡞ͬͨͷ͕
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20. jsonpp
    http://griffin-stewie.github.io/jsonpp/
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21. 13೥6݄1೔౔༵೔
    

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22. ೔ຊޠ͕ಡΊͨ
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23. •ϩʔΧϧͷ JSON ϑΝΠϧΛಡΈࠐΜ
    ͩΓ
    •http Ͱͱ͖ͬͯͨΓ
    •Key Λιʔτͨ͠Γ
    •ιʔτ͢Δͱ͖ʹ਺ࣈͱͯ͠ѻͬͨΓ
    •ϑΝΠϧʹอଘͨ͠Γ
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24. ΍ͬͨ͜ͱ
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25. ίϚϯυϥΠϯҾ਺ͷॲཧͬͯ
    Ͳ͏΍Μͷʁ
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26. •DDCli ͍ͬͯ͏ϥΠϒϥϦΛ࢖ͬͨ
    •appledoc ʹ΋࢖ΘΕ͍ͯΔ
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27. •DDCli ͷσϦήʔτϝιουΛ2࣮ͭ૷͢Δ
    •1ͭ͸ Φϓγϣϯͷఆٛ༻
    • ड͚෇͚͍ͨίϚϯυϥΠϯΦϓγϣϯΛߏ଄ମͷ
    ഑ྻͱͯ͠ఆٛ
    •΋͏1ͭ͸ CUI ΞϓϦͱͯ͠ͷΤϯτϦϙΠϯτ
    • ίϚϯυϥΠϯΦϓγϣϯ͸σϦήʔτΦϒδΣΫ
    τʹ KVC ܦ༝ͰηοτࡁΈ
    • ͦͷ΄͔ͷҾ਺͕౉͞ΕΔ
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28. 1. main.m ͷมߋ
    int main(int argc, const char * argv[])
    {
    int result = 0;
    @autoreleasepool {
    result = DDCliAppRunWithClass(
    [CSJSONPrettyPrint class]);
    }
    return result;
    }
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29. 2. Delegate ͷ࣮૷
    •- (void)application:(DDCliApplication *)app
    willParseOptions:(DDGetoptLongParser
    *)optionParser
    •- (void)application:(DDCliApplication *)app
    runWithArguments:(NSArray *)arguments
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30. •- (void)application:(DDCliApplication *)app
    willParseOptions:(DDGetoptLongParser *)optionParser
    •application:(DDCliApplication *)app
    runWithArguments:(NSArray *)arguments ͷલʹݺ
    ͹ΕΔ
    •DDGetoptOption ߏ଄ମΛ࡞੒͠ɺσϦήʔτϝ
    ιουͰ౉͞Εͨ DDGetoptLongParser Πϯελ
    ϯεʹ addOptionsFromTable: Ͱ౉͢
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31. DDGetoptOption
    - (void)application:(DDCliApplication *)app
    willParseOptions:(DDGetoptLongParser *)optionsParser;
    {
    DDGetoptOption optionTable[] =
    {
    // Long Short Argument options
    {@"version", 'v', DDGetoptNoArgument},
    {@"help", 'h', DDGetoptNoArgument},
    {@"output", 'o', DDGetoptRequiredArgument},
    {@"filter-key", 'k', DDGetoptRequiredArgument},
    {nil, 0, 0},
    };
    [optionsParser addOptionsFromTable: optionTable];
    }
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32. DDGetoptOption
    •Long Φϓγϣϯͷ໊শ (--version ౳ͷ "--" Λআ͍
    ͨจࣈྻ)
    •short Φϓγϣϯͷ໊শ
    •Φϓγϣϯ͕Ҿ਺ΛͱΔ͔ͱΒͳ͍͔ͷࢦఆ
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33. •- (void)application:(DDCliApplication *)app
    runWithArguments:(NSArray *)arguments
    •arguments ʹ͸ઃఆͨ͠ΦϓγϣϯҎ֎ͷίϚ
    ϯυϥΠϯҾ਺͕ೖ͍ͬͯΔ
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34. ΦϓγϣϯҾ਺΁ͷରԠ
    •main ؔ਺Ͱࢦఆͨ͠Ϋϥεʹରͯ͠ KVC Λ࢖ͬ
    ͯ஋ΛಥͬࠐΜͰ͘ΕΔ
    • ϓϩύςΟ໊͸ Long Φϓγϣϯͱಉ໊͡শ
    • ܕ͸ NSString
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35. JSON ͷ Pretty-Print
    ͸Ͳ͏ͨ͠ͷʁ
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36. SBJSON ʹؙ౤͛
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37. Debug ΊΜͲͦ͏
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38. ໘౗
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39. •Ͱ΋ɺXcode ʹ͸ Run ͨ͠ͱ͖ʹ೚ҙ
    ͷҾ਺Λ౉ͤΔ࢓૊Έ͕͋ΔΑ
    •ෳ਺ఆٛͰ͖ͯνΣοΫϘοΫεͰ
    On/Off Մ
    •GUI ΞϓϦͱେͯ͠มΘΒͳ͍खؒ
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40. Xcode ศར
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41. manpage ΋࡞ͬͨΑ
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42. manpage ͷه๏ҙຯෆ໌
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43. Կ͜Εʁ จࣈԽ͚ʁ
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44. ͜Μͳͷه๏ͳΜ͔ษڧ
    ͯ͠ΒΜͶ͐
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45. Pandoc Ͱੜ੒ͨ͠
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46. Pandoc ͬͯʁ
    •Pandoc a universal document converter
    • ଟ༷ͳςΩετϑΥʔϚοτΛผͷϑΥʔϚοτʹม׵
    • ରԠϑΥʔϚοτྫ
    • markdown
    • reStructuredText
    • textile
    • MediaWiki
    • ODT
    • docx
    • ͦͷଞ͍Ζ͍Ζ
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47. markdown Ͱॻ͍ͯม׵ͨ͠
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48. Πϯετʔϥʔ΋༻ҙͨ͠
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49. ࠓͷ Xcode ʹ͸
    PackageManager ͕ಉࠝ͞Εͯ
    ͳ͍
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50. Developer Center ಺ͷ
    Auxiliary Tools for Xcode
    ͷதʹ͋ͬͨ
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51. ࢖͍ํ͸؆୯
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52. άάΕʂ
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53. ͱ͍͏͜ͱͰ jsonpp Ͱ͖ͨΑ
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54. Ͱ΋Ͷ
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55. jq
    jq is a lightweight and flexible
    command-line JSON processor.
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56. jq
    •http://stedolan.github.io/jq/
    •C Ͱॻ͔Εͨ JSON Λݟ΍ͯ͘͘͢͠ΕΔࢠ
    •௒ڧྗ
    •XPath తʹ໨తͷσʔλ͚ͩநग़ͨ͠Γ
    •map ͱ͔ select ͱ͔ؔ਺తͳϑΟϧλϦϯά΋
    ग़དྷΔ
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57. ͜Μͳͷ͕
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58. ৭͕͍ͭͨΓ
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59. ཉ͍͠΋ͷ͚ͩϑΟϧλͨ͠Γ
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60. jq Ϛδ
    Φψψϝ
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61. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠
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