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Options |
Name |
Purpose |
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BuildSystemHandleList ()
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Builds the comma-separated list of system handle type numbers
Notes : Mirrors the Proparse grammar's systemhandlename rule (which
includes SUPER and THIS-OBJECT). A system handle heads a
Widget_ref attribute chain in an expression and may be the
target of an assignment (SCL-5490).
*/
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BuildWidnamePrefixList ()
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Builds the comma-separated list of widname prefix type numbers
Notes : Mirrors the keyword-prefixed alternatives of the Proparse
grammar's widname rule (DATASET id, BUFFER filn,
TEMP-TABLE filn, ...) - the systemhandlename alternative is
covered by the system handle list instead (SCL-5500)
*/
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CHARACTER GetFullText (integer)
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Returns the full keyword text of a keyword token type
Notes : Mirrors ABLNodeType.getFullText: the lower case text of the
type's constant (sub-total for SUBTOTAL, maximum for MAXIMUM),
independent of the abbreviation written in the source. The
tree parser names the implicit variables of an aggregate
phrase after it (SCL-5788).
@param piType The token type
@return The full keyword text, or the empty string for a type that is not a keyword
*/
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INTEGER GetTypeNum (character)
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Returns the numeric value of a token-type constant name
Notes :
@param pcName The token-type constant name (e.g. ACCUMULATE)
@return The numeric token type, or 0 if unknown
*/
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LOGICAL IsIdentifierKeywordType (integer)
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Returns whether the given token type is a keyword that may serve
as an identifier (an unreserved keyword)
Notes : Mirrors the Proparse grammar's unreservedkeyword rule by data:
the type is a KEYWORD, is not RESERVED, and is not a no-argument
built-in function (TODAY, TIME, NOW, ... stay value atoms in an
expression). The statement / expression parsers re-type such a
token to ID at identifier positions, matching the .NET engine.
@param piType The token type
@return Logical value indicating if the type may serve as an identifier
*/
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LOGICAL IsKeywordType (integer)
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Returns whether the given token type represents an ABL keyword
Notes :
@param piType The token type
@return Logical value indicating if the type is a keyword
*/
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LOGICAL IsReservedKeywordType (integer)
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Returns whether the given token type is a reserved keyword
Notes : Backs the member re-typing after a colon: a reserved keyword
that is not a system handle becomes an ID there (the reference
engine's TokenList.reviewObjcolon, SCL-5499)
@param piType The token type
@return Logical value indicating if the type is a reserved keyword
*/
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LOGICAL IsSystemHandleType (integer)
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Returns whether the given token type is a system handle keyword
Notes : The Proparse grammar's systemhandlename rule (SESSION,
THIS-PROCEDURE, CURRENT-WINDOW, SELF, ...) - including SUPER and
THIS-OBJECT
@param piType The token type
@return Logical value indicating if the type is a system handle keyword
*/
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LOGICAL IsWidnamePrefixType (integer)
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Returns whether the given token type is a widget-kind keyword
that may prefix a named widget reference
Notes : The keyword-prefixed alternatives of the Proparse grammar's
widname rule - BUFFER b:..., TEMP-TABLE tt:..., DATASET ds:...,
QUERY q:..., FRAME f:..., ... (SCL-5500)
@param piType The token type
@return Logical value indicating if the type is a widname prefix keyword
*/
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LoadKeywords ()
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Loads the keyword table and expands all legal abbreviations
Notes :
*/
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LoadTypeNames ()
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Loads the token-type name -> number table
Notes :
*/
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CHARACTER ResolveDataFile (character)
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Resolves the propath location of a data file shipped with this
package
Notes :
@param pcFileName The bare data file name
@return The fully qualified file name
*/
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INTEGER TestLiteralsTable (character, integer)
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Returns the token type for a candidate identifier
Notes : Mirrors NodeTypes.testLiteralsTable: a lowercased identifier
is looked up in the (abbreviation-expanded) literals map; the
supplied default type is returned when it is not a keyword.
@param pcText The identifier text
@param piDefaultType The type to return if the text is not a keyword
@return The resolved token type
*/
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