Here is a script for AI 10 that might help. Open Script Editor and open a new, blank document. Paste the following in and save it as a Script into the Scripts folder in the Presets folder in the Illustrator 10 application folder. The next time you launch Illustrator, the script will appear in the Scripts list under the file menu. To use it, select all the objects in your document you want to search among or just Select All. Activate the script. A dialog will open in which you can enter the point size you want to search for. After it runs, any text object that contains the type size you are looking for will remain selected. Since you can't hilight multiple text selections with the with the Type Tool, this works only with objects selected with the arrow tool.
-- Schawk, Inc. 2004 -- End Line
tell application "Adobe Illustrator 10.0.3" -- End Line
set in_size to (display dialog "Select Objects to Search" & return & "Enter a Text Size, in Points" & return & "Text Objects that Contain a Matching Size will Remain Selected" default answer "12.0" giving up after 60) -- End Line
set search_size to (text returned of in_size as real) -- End Line
set currentSelection to the selection -- End Line
set counter to 0 as integer -- End Line
try -- End Line
repeat with targetItem in currentSelection -- End Line
set match to false -- End Line
if class of targetItem is text art item then -- End Line
repeat with i from 1 to (count of paragraphs of targetItem) -- End Line
repeat with j from 1 to (count of characters of paragraph i of targetItem) -- End Line
set char_size to the size of character j of paragraph i of targetItem -- End Line
set counter to counter + 1 -- End Line
-- Delete the next four lines to get rid of the spoken update if it's bugging you -- End Line
if counter = 100 then -- End Line
say "Searching for " & search_size & " point size text." -- End Line
set counter to 0 -- End Line
end if -- End Line
if char_size >= search_size - 0.005 and char_size <= search_size + 0.005 then -- End Line set match to true -- End Line exit repeat -- End Line end if -- End Line end repeat -- End Line if match is equal to true then -- End Line exit repeat -- End Line end if -- End Line end repeat -- End Line if match is not true then -- End Line set selected of targetItem to false -- End Line end if -- End Line else -- End Line set selected of targetItem to false -- End Line end if -- End Line end repeat -- End Line say "Finished searching text." -- End Line on error -- End Line display dialog "Select text with the Selection Tool (Arrow), not the Type Tool." -- End Line end try -- End Line end tell -- End Line
The formatting got a little goofed up so just be sure a new line starts after every place it says "-- End Line"