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42 lines
922 B
C
42 lines
922 B
C
/*
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File: exprutil.c
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Auth: Brian Allen Vanderburg II
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Date: Monday, April 28, 2003
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Desc: Utility functions for use by this library
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This file is part of ExprEval.
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*/
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/* Include files */
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#include "exprincl.h"
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#include "exprpriv.h"
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/* Return the version number */
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void exprGetVersion(int *major, int *minor)
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{
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*major = EXPR_VERSIONMAJOR;
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*minor = EXPR_VERSIONMINOR;
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}
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/* This utility function determines if an identifier is valid */
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int exprValidIdent(char *name)
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{
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if (name == NULL) /* Null string */
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return 0;
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/* First must be letter or underscore */
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if (isalpha(*name) || *name == '_')
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name++; /* Point to next letter */
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else
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return 0; /* Not letter or underscore, maybe empty */
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/* others can be letter, number, or underscore */
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while (isalnum(*name) || *name == '_')
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name++;
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/* When the while breaks out, we should be at the end */
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return (*name == '\0') ? 1 : 0;
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}
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