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dae46eab87
Previously if the token has both leading and trailing whitespace the classes would bleed across the cases and cause an exception to be thrown. Closes #298
104 lines
3.2 KiB
CoffeeScript
104 lines
3.2 KiB
CoffeeScript
_ = require 'underscore'
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module.exports =
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class Token
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value: null
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scopes: null
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isAtomic: null
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isHardTab: null
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constructor: ({@value, @scopes, @isAtomic, @bufferDelta, @isHardTab}) ->
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@screenDelta = @value.length
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@bufferDelta ?= @screenDelta
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isEqual: (other) ->
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@value == other.value and _.isEqual(@scopes, other.scopes) and !!@isAtomic == !!other.isAtomic
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isBracket: ->
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/^meta\.brace\b/.test(_.last(@scopes))
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splitAt: (splitIndex) ->
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value1 = @value.substring(0, splitIndex)
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value2 = @value.substring(splitIndex)
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[new Token(value: value1, scopes: @scopes), new Token(value: value2, scopes: @scopes)]
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breakOutAtomicTokens: (tabLength, breakOutLeadingWhitespace) ->
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if breakOutLeadingWhitespace
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return [this] unless /^[ ]|\t/.test(@value)
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else
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return [this] unless /\t/.test(@value)
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outputTokens = []
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regex = new RegExp("([ ]{#{tabLength}})|(\t)|([^\t]+)", "g")
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while match = regex.exec(@value)
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[fullMatch, softTab, hardTab] = match
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if softTab and breakOutLeadingWhitespace
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outputTokens.push(@buildSoftTabToken(tabLength, false))
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else if hardTab
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breakOutLeadingWhitespace = false
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outputTokens.push(@buildHardTabToken(tabLength, true))
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else
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breakOutLeadingWhitespace = false
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outputTokens.push(new Token(value: match[0], scopes: @scopes))
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outputTokens
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buildHardTabToken: (tabLength) ->
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@buildTabToken(tabLength, true)
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buildSoftTabToken: (tabLength) ->
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@buildTabToken(tabLength, false)
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buildTabToken: (tabLength, isHardTab) ->
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new Token(
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value: _.multiplyString(" ", tabLength)
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scopes: @scopes
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bufferDelta: if isHardTab then 1 else tabLength
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isAtomic: true
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isHardTab: isHardTab
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)
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isOnlyWhitespace: ->
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not /\S/.test(@value)
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getValueAsHtml: ({invisibles, hasLeadingWhitespace, hasTrailingWhitespace, hasIndentGuide})->
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invisibles ?= {}
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html = @value
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.replace(/&/g, '&')
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.replace(/"/g, '"')
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.replace(/'/g, ''')
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.replace(/</g, '<')
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.replace(/>/g, '>')
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if @isHardTab
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classes = []
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classes.push('indent-guide') if hasIndentGuide
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classes.push('invisible') if invisibles.tab
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classes.push('hard-tab')
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classes = classes.join(' ')
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html = html.replace /^./, (match) ->
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match = invisibles.tab ? match
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"<span class='#{classes}'>#{match}</span>"
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else
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if hasLeadingWhitespace
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classes = []
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classes.push('indent-guide') if hasIndentGuide
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classes.push('invisible') if invisibles.space
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classes.push('leading-whitespace')
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classes = classes.join(' ')
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html = html.replace /^[ ]+/, (match) ->
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match = match.replace(/./g, invisibles.space) if invisibles.space
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"<span class='#{classes}'>#{match}</span>"
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if hasTrailingWhitespace
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classes = []
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classes.push('indent-guide') if hasIndentGuide
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classes.push('invisible') if invisibles.space
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classes.push('trailing-whitespace')
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classes = classes.join(' ')
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html = html.replace /[ ]+$/, (match) ->
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match = match.replace(/./g, invisibles.space) if invisibles.space
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"<span class='#{classes}'>#{match}</span>"
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html
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