57 lines
1.5 KiB
Plaintext
57 lines
1.5 KiB
Plaintext
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/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Header$ */
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/* PREPROCESSOR: DEFINITION OF MACRO DESCRIPTOR */
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/* The flags of the mc_flag field of the macro structure. Note that
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these flags can be set simultaneously.
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*/
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#define NOFLAG 0 /* no special flags */
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#define FUNC 0x1 /* function attached */
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#define NOUNDEF 0x2 /* reserved macro */
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#define NOREPLACE 0x4 /* prevent recursion */
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#define FORMALP 0200 /* mask for creating macro formal parameter */
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/* The macro descriptor is very simple, except the fact that the
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mc_text, which points to the replacement text, contains the
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non-ascii characters \201, \202, etc, indicating the position of a
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formal parameter in this text.
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*/
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struct macro {
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struct macro *next;
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char * mc_text; /* the replacement text */
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int mc_nps; /* number of formal parameters */
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int mc_length; /* length of replacement text */
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char mc_flag; /* marking this macro */
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};
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/* ALLOCDEF "macro" 20 */
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struct mlist {
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struct mlist *next;
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struct macro *m_mac;
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char *m_repl;
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char m_unstack;
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};
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/* ALLOCDEF "mlist" 20 */
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/* `token' numbers of keywords of command-line processor
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*/
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#define K_UNKNOWN 0
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#define K_DEFINE 1
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#define K_ELIF 2
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#define K_ELSE 3
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#define K_ENDIF 4
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#define K_ERROR 5
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#define K_IF 6
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#define K_IFDEF 7
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#define K_IFNDEF 8
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#define K_INCLUDE 9
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#define K_LINE 10
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#define K_PRAGMA 11
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#define K_UNDEF 12
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