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-
- SPELLING CHECKER
-
- The TextReader application now includes a spelling checker. This
- has been especially developed to make use of the pronunciation
- dictionary in the Speak module.
-
- The spelling checker suggests possible correct spellings when a
- wrong word is found. It can use two methods to do this:
-
- 1. For typographical errors, an approach similar to that
- of the spelling checker in "Impression" is used. It assumes a
- letter may have been omitted, an extra letter added, a pair of
- letters reversed, or an incorrect letter substituted.
-
- 2. It can also use the pronunciation dictionary in the Speak
- module to produce a list of words which sound similar to the original
- word. This is particularly useful for children or other people
- with spelling difficulties. If you type an approximate 'phonetic'
- spelling, the correct word should appear in the list of
- suggestions.
-
-
- To use the spelling checker, click on the 'red tick' button on the
- TextReader's button bar. This will open the 'Spell' window.
-
- If you now click on a word in the text, it will appear in the
- spell window and suggested alternative spellings will be listed.
-
- To perform spell checking on a text passage, place the cursor at
- the start of the text (or at the place from where you want the
- check to start), and click on the SKIP button in the spell window.
- The spell checker will find the next suspicious word, highlight
- it, transfer it to the spell window, and show a list of
- alternative spellings. The first of the alternatives will be
- highlighted. The up and down arrow keys, or the mouse, can be
- used to select other alternatives from the list. Clicking on
- REPLACE will replace the word in the text passage by the currently
- selected alternative. Alternatively, you can edit the word
- yourself at the top of the spell window, in which case REPLACE
- will use the edited word to replace into the text.
-
- If you do not want to replace the word in the text, then click
- on the SKIP or OK button.
-
- SKIP will move on to the next incorrect word in the text.
-
- OK indicates that the word is in fact valid, although it has
- not been recognised as such by the spell checker. This will happen
- with place names, for example. The word is remembered in the spell
- chevker's temporary memory and will not be shown as an error the
- next time it is found. The spell checker then moves on to the
- next incorrect word in the text.
-
-
- If you click with Adjust on a word in the alternative spellings
- list, that word will be spoken.
-
-
- SPELLING OPTIONS
-
- The operation of the spelling checker can be adjusted from the
- 'Spell Options' dialogue box.
-
- Phonetic. This selects whether similar sounding words are added
- to the alternative spelling list.
-
- Typo. This selects whether the typographical error rules
- (as described above) are used to find words for the
- alternative spelling list.
-
- Qwerty. When the 'Typo' option is on, this restricts the use
- of substitute letters (in short words) to those on the
- keyboard which are near to the letter which is being
- replaced. This can be used when checking text which
- has been entered from the keyboard to reduce the number
- of alternatives which are shown. This option should be
- turned off when used with text which has been produced
- by an optical character reader.
-
- 'Swap B/D'. Used with the 'Phonetic' option. When set,
- alternatives will be generated in which the letters 'b'
- and 'd' are interchanged. Some people have difficulty
- in distinguishing these similarly shaped letters.
-
- 'D&T After N'. Used with the 'Phonetic' option. When set,
- alternatives will be generated in which the letters 'd'
- and 't' are added after 'n' at the end of a word.
-
- Option 3.
- Option 4.
- These have no effect at present. They are included for
- future expansion for further optional generating rules.
-
- Depth. This controls the number of possibilities which the
- 'Phonetic' option considers. The default value is 3,
- which indicates that words which have three different
- errors will be considered. A value of 2 will be faster,
- but will miss an alternative like 'scissor' for the
- misspelling 'sizer' which has 3 errors.
- A value of 4 will be more inventive, but slower.
-
-
- SPEED
-
- The phonetic spelling checker considers a large number of
- possibilities when looking for possible words to match a
- misspelling. This number increases rapidly when a long word is
- given, which can make the process slow. When clicking on a word
- in the text, or when entering a word at the top of the 'Spell'
- window, a search is performed to the extent indicated by the
- 'Depth' option. However, when it finds a misspelt word when
- checking a passage of text, the 'depth' is restricted for long
- words. Once a misspelt word has been found, the search can be
- made at the full depth by pressing RETURN.
-
-
- USER DEFINED DICTIONARIES
-
- This version of the spelling checker does not allow for user-
- defined dictionaries. However, if it detects a suspicious word
- and you use the OK button to pass it without replacing it, it will
- remember it and not flag it as an error the next time it finds it.
- This temporary list is forgotten when you close the 'Spell' window.
-
-
- CROSSWORD HELP
-
- If you type a word into the top box of the spelling window, and
- use question marks in place of unknown letters, it will show
- a list of possible words. For example, type sp??k (and press
- RETURN) and the list will contain "spank", "spark", "speak", etc.
-
-
-
- MEMORY REQUIREMENTS
-
- The spelling dictionary is quite large (about 300k). If you do
- not wish to use the spelling checker, delete the directory named
- 'DataWP' within the !Speak application. This will delete the
- spelling dictionaries. If you have deleted 'DataWP' you could
- also copy the file !Run2 to replace the file !Run within the
- !Speak application. This reduces the amount of memory that the
- TextReader uses to run.
-