/
Symbol.prg
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Symbol.prg
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//
// Copyright (c) XSharp B.V. All Rights Reserved.
// Licensed under the Apache License, Version 2.0.
// See License.txt in the project root for license information.
//
/// <summary>
/// Convert a string to a Symbol.
/// </summary>
/// <param name="c"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION String2Atom(c AS STRING) AS SYMBOL
RETURN SYMBOL{c, FALSE}
/// <summary>
/// Convert a string to an uppercase Symbol.
/// </summary>
/// <param name="c"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION String2Symbol(c AS STRING) AS SYMBOL
RETURN SYMBOL{c, TRUE}
/// <summary>
/// Convert a symbol to string
/// </summary>
/// <param name="s"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION Symbol2String(s AS SYMBOL) AS STRING
RETURN s:ToString()
/// <summary>
/// Concatenate two Symbols.
/// </summary>
/// <param name="s1"></param>
/// <param name="s2"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION ConcatAtom(s1 AS SYMBOL,s2 AS SYMBOL) AS SYMBOL
RETURN SYMBOL{ s1:ToString()+ s2:ToString()}
/// <summary>
/// Concatenate three Symbols.
/// </summary>
/// <param name="s1"></param>
/// <param name="s2"></param>
/// <param name="s3"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION ConcatAtom3(s1 AS SYMBOL,s2 AS SYMBOL,s3 AS SYMBOL) AS SYMBOL
RETURN SYMBOL{ s1:ToString() +s2:ToString() +s3:ToString() }
/// <summary>
/// </summary>
/// <param name="s1"></param>
/// <param name="s2"></param>
/// <param name="s3"></param>
/// <param name="s4"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION ConcatAtom4(s1 AS SYMBOL,s2 AS SYMBOL,s3 AS SYMBOL,s4 AS SYMBOL) AS SYMBOL
RETURN SYMBOL{ s1:ToString() +s2:ToString() +s3:ToString() +s4:ToString() }
/// <summary>
/// </summary>
/// <param name="s1"></param>
/// <param name="s2"></param>
/// <param name="s3"></param>
/// <param name="s4"></param>
/// <param name="s5"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION ConcatAtom5(s1 AS SYMBOL,s2 AS SYMBOL,s3 AS SYMBOL,s4 AS SYMBOL,s5 AS SYMBOL) AS SYMBOL
RETURN SYMBOL{ s1:ToString() +s2:ToString() +s3:ToString() +s4:ToString() +s5:ToString()}
/// <summary>
/// Determine the number of Symbols in the atom table.
/// </summary>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION MaxAtom() AS DWORD
RETURN (DWORD) __Symbol.SymbolTable.Count
/// <summary>
/// </summary>
/// <param name="s1"></param>
/// <param name="s2"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION SysCompAtom(s1 AS SYMBOL,s2 AS SYMBOL) AS INT
RETURN __StringCompare(s1:ToString(), s2:ToString())
/// <summary>
/// Convert a null-terminated string to a Symbol and add it to the atom table.
/// </summary>
/// <param name="s"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION SysAddAtom(s AS STRING) AS SYMBOL
RETURN SYMBOL { s, FALSE}
/// <summary>
/// Convert a null-terminated string to a Symbol and add it to the atom table.
/// </summary>
/// <param name="p"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION SysAddAtom(p AS PSZ) AS SYMBOL
RETURN SYMBOL { Psz2String(p), FALSE}
/// <summary>
/// Convert a null-terminated string to an uppercase Symbol and add it to the atom table.
/// </summary>
/// <param name="s"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION SysAddAtomUpperA(s AS STRING) AS SYMBOL
RETURN SYMBOL { s, TRUE}
/// <summary>
/// Convert a null-terminated string to an uppercase Symbol and add it to the atom table.
/// </summary>
/// <param name="p"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION SysAddAtomUpperA(p AS PSZ) AS SYMBOL
RETURN SYMBOL { Psz2String(p), TRUE}
/// <summary>
/// Determine whether a Symbol is in the atom table.
/// </summary>
/// <param name="p"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION SysFindAtom(s AS STRING) AS SYMBOL
RETURN __Symbol.Find(s)
/// <summary>
/// Determine whether a Symbol is in the atom table.
/// </summary>
/// <param name="p"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION SysFindAtom(p AS PSZ) AS SYMBOL
RETURN __Symbol.Find(Psz2String(p))
/// <summary>
/// Convert a Symbol to a null-terminated string.
/// </summary>
/// <param name="s"></param>
/// <returns>
/// </returns>
/// <include file="RTComments.xml" path="Comments/Symbol/*" />
FUNCTION SysGetAtomName(s AS SYMBOL) AS PSZ
RETURN s:SysGetAtomName()