1 | fs = require 'fs'
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2 |
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3 | Compiler = require './haml-coffee'
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4 |
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5 | if process.browser
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6 | CoffeeScript = window.CoffeeScript
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7 | else
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8 | CoffeeScript = require 'coffee-script'
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9 |
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10 | # Express 3 template Cache
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11 | __expressCache = {}
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12 |
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13 | # Facade to Haml Coffee for easy template function
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14 | # compiling and JST template rendering.
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15 | #
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16 | module.exports =
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17 |
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18 | # Compile the Haml Coffee template into
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19 | # a JavaScript function.
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20 | #
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21 | # @see {Compiler} for a complete list of the supported
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22 | # compiler options.
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23 | #
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24 | # @param [String] source the Haml Coffee source
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25 | # @param [Object] options the compiler options
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26 | # @return [Function] the template
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27 | #
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28 | compile: (source, options = {}) ->
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29 | compiler = new Compiler(options)
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30 | compiler.parse source
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31 |
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32 | template = new Function CoffeeScript.compile(compiler.precompile(), bare: true)
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33 |
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34 | (params) -> template.call params
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35 |
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36 | # Creates the JavaScript Template.
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37 | #
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38 | # @see {Compiler} for a complete list of the supported
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39 | # compiler options.
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40 | #
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41 | # @param [String] source the Haml Coffee source
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42 | # @param [String] name the template name
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43 | # @param [String] namespace the template namespace
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44 | # @param [Object] options the compiler options
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45 | # @return [String] the template source code
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46 | #
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47 | template: (source, name, namespace, options = {}) ->
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48 | compiler = new Compiler(options)
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49 | compiler.parse source
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50 |
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51 | CoffeeScript.compile compiler.render(name, namespace)
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52 |
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53 | # Express 3 templating interface with template function cache.
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54 | # When the template function cache is enabled by setting `cache`
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55 | # in the options to true, the compiled JavaScript template function
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56 | # is cached, which improves speed a lot, since it it only parses,
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57 | # generates and compiles to template once.
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58 | #
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59 | # @overload __express(filename, callback)
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60 | # Compiles and renders a template
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61 | # @param [String] filename the template file path
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62 | # @param [Function] the callback
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63 | #
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64 | # @overload __express(filename, options, callback)
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65 | # Compiles and renders a template
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66 | # @param [String] filename the template file path
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67 | # @param [Object] options the compiler options and template locals
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68 | # @option options [Boolean] cache whether to cache the template or not
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69 | # @param [Function] the callback
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70 | #
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71 | __express: (filename, options, callback) ->
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72 | # Parameter shift
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73 | if !!(options and options.constructor and options.call and options.apply)
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74 | callback = options
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75 | options = {}
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76 |
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77 | try
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78 | if options.cache and __expressCache[filename]
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79 | callback null, __expressCache[filename](options)
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80 |
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81 | else
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82 | options.filename = filename
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83 | source = fs.readFileSync(filename, 'utf8')
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84 |
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85 | if options.cache
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86 | __expressCache[filename] = module.exports.compile(source, options)
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87 | callback null, __expressCache[filename](options)
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88 |
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89 | else
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90 | callback null, module.exports.compile(source, options)(options)
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91 |
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92 | catch err
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93 | callback err
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