(*
*** User modifiable variables
useFractionGlyphs has two possible values:
none: *fractions are created by modifying the attributes of the actual text
normal: *fractions that have glyphs in normal fonts are replaced with those glyphs
*other fractions are created by modifying the attributes of the actual text
*)
property useFractionGlyphs : "none" -- one of these values:"none","normal"
-- *** End user modifiable variables
-- When replacing a fraction that contains mulitple characters with one glyph,
-- then the offsets we calculate when we start become incorrect. This
-- propery keeps track of the difference in offset.
property extraOffset : 0
-- This maps the fractions found in all fonts and their unicode value
property fractionGlyphMap : {¬
{"1/4", "00BC"}, ¬
{"1/2", "00BD"}, ¬
{"3/4", "00BE"} ¬
}
tell application "Adobe InDesign CS2"
set extraOffset to 0
-- Make sure a text box is selected
set theSelection to selection
if (count of theSelection) is 0 or class of item 1 of theSelection is not text frame then
beep
tell me to display dialog "Please select a text box." buttons {"OK"} default button 1
return
end if
set theFrame to item 1 of selection
tell theFrame --only work on the selected frame
-- get the indicess of all the slash characters
set slashCharacterList to (index of (every character whose contents is "/")) as list
if slashCharacterList is {} then
tell me to display dialog "No fractions in this text flow to format."
return
end if
set theCounter to 0 -- keep track of how many factions we process
repeat with i from 1 to the number of items in slashCharacterList
set slashCharIndex to (item i of slashCharacterList) as number
set wordBefore to object reference of word 1 of character (slashCharIndex - extraOffset - 1) of theFrame
set wordAfter to object reference of word 1 of character (slashCharIndex - extraOffset + 1) of theFrame
tell me to set IsFraction to VerifyIsFraction(wordBefore, wordAfter)
tell me to set replacedWithGlyphs to HandleUseFractionGlyphs(wordBefore, wordAfter)
if IsFraction is true then
-- if we already replaced it with a built-in fraction, just increment the counter
if replacedWithGlyphs is true then
set theCounter to theCounter + 1
else -- If this is a fraction, and we haven't already replaced with a built in fraction
-- Handle the slash
tell character (slashCharIndex - extraOffset)
set contents to ASCII character 218 --virgule
set kerning value to -15
end tell
-- Handle the first character before the slash
tell character (slashCharIndex - extraOffset - 1)
set leadingSize to leading
if leadingSize = "auto" then
set mySize to point size
set myAutoPct to auto leading
set leadingSize to mySize * (myAutoPct * 0.01)
end if
set fontSize to point size * 0.5
set point size to fontSize
set baseShift to leadingSize * 0.3
set baseline shift to baseShift
if contents is in {"3", "1", "5"} then
set kerning value to -30
else
set kerning value to -15
end if
end tell
-- Handle the first character after the slash
tell character (slashCharIndex - extraOffset + 1)
set point size to fontSize
if contents is in {"1"} then
set kerning value to -10
end if
end tell
-- Handle the second character before the slash
tell character (slashCharIndex - extraOffset - 2)
set point size to fontSize
set baseline shift to baseShift
set kerning value to -5
end tell
-- Handle the second character after the slash
tell character (slashCharIndex - extraOffset + 2)
set point size to fontSize
end tell
--beep
set theCounter to theCounter + 1
end if
end if
end repeat
beep 2
tell me to display dialog "Scan complete." & return & theCounter & ¬
" fractions formatted." buttons {"OK"} default button 1
end tell
end tell
(*
VerifyIsFraction takes the characters before and after a slash and
determines whether this meets the criteria for a fraction
*)
on VerifyIsFraction(wordBefore, wordAfter)
tell application "Adobe InDesign CS2"
-- we only support fractions with up to 2 digits for the numerator/demoninator
if (count of characters of wordBefore) > 2 or (count of characters of wordAfter) > 2 then return false
-- To qualify as a fraction, all the charactere of the numerator/demoninator must be numbers
set characterList to every character of wordBefore & every character of wordAfter
repeat with oneCharacter in characterList
if oneCharacter is not in {"1", "2", "3", "4", "5", "6", "7", "8", "9", "0"} then return false
end repeat
-- if we got this far, then it all checks out
return true
end tell
end VerifyIsFraction
(*
HandleUseFractionGlyphs takes the characters before and after a slash and
if they match 1/4, 1/2 or 3/4, then they are replaced by the unicode value
for the appropriate glyph
*)
on HandleUseFractionGlyphs(wordBefore, wordAfter)
tell application "Adobe InDesign CS2"
if useFractionGlyphs is "normal" then
repeat with oneFractionMap in fractionGlyphMap
if contents of wordBefore is item 1 of item 1 of oneFractionMap and contents of wordAfter is item -1 of item 1 of oneFractionMap then
tell me to HandleOneGlyph(wordBefore, wordAfter, "<" & item 2 of oneFractionMap & ">")
return true
end if
end repeat
end if
return false
end tell
end HandleUseFractionGlyphs
(*
HandleOneGlyph is called from HandleUseFractionGlyphs. It takes the
characters before and after a slash and
a unicode value for the replacement glyph.
It replaces thefraction with the unicode value
and updates the extraOffset property
*)
on HandleOneGlyph(wordBefore, wordAfter, unicodeChar)
tell application "Adobe InDesign CS2"
set shouldReplace to true
set theParent to parent of wordBefore
set wordBeforeIndex to index of wordBefore
set wordAfterIndex to index of wordAfter
set contents of text from character wordBeforeIndex to character wordAfterIndex of theParent to unicodeChar
set extraOffset to extraOffset + 2
end tell
end HandleOneGlyph
