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Pass character codes around in TextUtils

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Previously the character codes were looked up for each type of character pair.
This commit is contained in:
Kevin Sawicki 2014-10-28 16:55:36 -07:00
parent d1fcfabf0b
commit dc824485aa
2 changed files with 37 additions and 29 deletions
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63
src/text-utils.coffee
View File

@ -1,56 +1,61 @@
isHighSurrogate = (string, index) ->
0xD800 <= string.charCodeAt(index) <= 0xDBFF
isHighSurrogate = (charCode) ->
0xD800 <= charCode <= 0xDBFF
isLowSurrogate = (string, index) ->
0xDC00 <= string.charCodeAt(index) <= 0xDFFF
isLowSurrogate = (charCode) ->
0xDC00 <= charCode <= 0xDFFF
isVariationSelector = (string, index) ->
0xFE00 <= string.charCodeAt(index) <= 0xFE0F
isVariationSelector = (charCode) ->
0xFE00 <= charCode <= 0xFE0F
isCombiningCharacter = (string, index) ->
0x0300 <= string.charCodeAt(index) <= 0x036F or
0x1AB0 <= string.charCodeAt(index) <= 0x1AFF or
0x1DC0 <= string.charCodeAt(index) <= 0x1DFF or
0x20D0 <= string.charCodeAt(index) <= 0x20FF or
0xFE20 <= string.charCodeAt(index) <= 0xFE2F
isCombiningCharacter = (charCode) ->
0x0300 <= charCode <= 0x036F or
0x1AB0 <= charCode <= 0x1AFF or
0x1DC0 <= charCode <= 0x1DFF or
0x20D0 <= charCode <= 0x20FF or
0xFE20 <= charCode <= 0xFE2F
# Is the character at the given index the start of a high/low surrogate pair?
# Are the given character codes a high/low surrogate pair?
#
# * `string` The {String} to check for a surrogate pair.
# * `index` The {Number} index to look for a surrogate pair at.
# * `charCodeA` The first character code {Number}.
# * `charCode2` The second character code {Number}.
#
# Return a {Boolean}.
isSurrogatePair = (string, index=0) ->
isHighSurrogate(string, index) and isLowSurrogate(string, index + 1)
isSurrogatePair = (charCodeA, charCodeB) ->
isHighSurrogate(charCodeA) and isLowSurrogate(charCodeB)
# Is the character at the given index the start of a variation sequence?
# Are the given character codes a variation sequence?
#
# * `string` The {String} to check for a variation sequence.
# * `index` The {Number} index to look for a variation sequence at.
# * `charCodeA` The first character code {Number}.
# * `charCode2` The second character code {Number}.
#
# Return a {Boolean}.
isVariationSequence = (string, index=0) ->
not isVariationSelector(string, index) and isVariationSelector(string, index + 1)
isVariationSequence = (charCodeA, charCodeB) ->
not isVariationSelector(charCodeA) and isVariationSelector(charCodeB)
# Is the character at the given index the start of a combined character pair?
# Are the given character codes a combined character pair?
#
# * `string` The {String} to check for a combined character.
# * `index` The {Number} index to look for a variation sequence at.
# * `charCodeA` The first character code {Number}.
# * `charCode2` The second character code {Number}.
#
# Return a {Boolean}.
isCombinedCharacter = (string, index=0) ->
not isCombiningCharacter(string, index) and isCombiningCharacter(string, index + 1)
isCombinedCharacter = (charCodeA, charCodeB) ->
not isCombiningCharacter(charCodeA) and isCombiningCharacter(charCodeB)
# Is the character at the given index the start of high/low surrogate pair
# a variation sequence, or a combined character?
#
# * `string` The {String} to check for a surrogate pair, variation sequence,
# or combined character.
# * `index` The {Number} index to look for a surrogate pair at.
# * `index` The {Number} index to look for a surrogate pair, variation
# sequence, or combined character.
#
# Return a {Boolean}.
isPairedCharacter = (string, index=0) ->
isSurrogatePair(string, index) or isVariationSequence(string, index) or isCombinedCharacter(string, index)
charCodeA = string.charCodeAt(index)
charCodeB = string.charCodeAt(index + 1)
isSurrogatePair(charCodeA, charCodeB) or
isVariationSequence(charCodeA, charCodeB) or
isCombinedCharacter(charCodeA, charCodeB)
# Does the given string contain at least surrogate pair, variation sequence,
# or combined character?

3
src/workspace.coffee
View File

@ -402,6 +402,8 @@ class Workspace extends Model
item ?= opener(atom.project.resolve(uri), options) for opener in @getOpeners() when !item
item ?= atom.project.open(uri, options)
console.profile('open')
Q(item)
.then (item) =>
if not pane
@ -413,6 +415,7 @@ class Workspace extends Model
index = pane.getActiveItemIndex()
@emit "uri-opened"
@emitter.emit 'did-open', {uri, pane, item, index}
console.profileEnd('open')
item
.catch (error) ->
console.error(error.stack ? error)