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* src/output.c: Comment changes.

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Akim Demaille
2001-12-29 14:14:32 +00:00
parent 0d8a73638f
commit 255ef6389e
2 changed files with 52 additions and 50 deletions
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ChangeLog
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@@ -1,3 +1,7 @@
2001-12-29 Akim Demaille <akim@epita.fr>
* src/output.c: Comment changes.
2001-12-27 Paul Eggert <eggert@twinsun.com>
* src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special

98
src/output.c
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@@ -1,5 +1,6 @@
/* Output the generated parsing program for bison,
Copyright 1984, 1986, 1989, 1992, 2000, 2001 Free Software Foundation, Inc.
Copyright 1984, 1986, 1989, 1992, 2000, 2001
Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
@@ -19,76 +20,73 @@
02111-1307, USA. */
/* The parser tables consist of these tables.
Starred ones needed only for the semantic parser.
Double starred are output only if switches are set.
/* The parser tables consist of these tables. Marked ones needed only
for the semantic parser. Double marked are output only if switches
are set.
yytranslate = vector mapping yylex's token numbers into bison's token
numbers.
YYTRANSLATE = vector mapping yylex's token numbers into bison's
token numbers.
** yytname = vector of string-names indexed by bison token number
++ YYTNAME = vector of string-names indexed by bison token number.
** yytoknum = vector of yylex token numbers corresponding to entries
in yytname
++ YYTOKNUM = vector of yylex token numbers corresponding to
entries in YYTNAME.
yyrline = vector of line-numbers of all rules. For yydebug printouts.
YYRLINE = vector of line-numbers of all rules. For yydebug
printouts.
yyrhs = vector of items of all rules.
This is exactly what ritems contains. For yydebug and for semantic
parser.
YYRHS = vector of items of all rules. This is exactly what RITEMS
contains. For yydebug and for semantic parser.
yyprhs[r] = index in yyrhs of first item for rule r.
YYPRHS[R] = index in YYRHS of first item for rule R.
yyr1[r] = symbol number of symbol that rule r derives.
YYR1[R] = symbol number of symbol that rule R derives.
yyr2[r] = number of symbols composing right hand side of rule r.
YYR2[R] = number of symbols composing right hand side of rule R.
* yystos[s] = the symbol number of the symbol that leads to state s.
+ YYSTOS[S] = the symbol number of the symbol that leads to state
S.
yydefact[s] = default rule to reduce with in state s,
when yytable doesn't specify something else to do.
Zero means the default is an error.
YYDEFACT[S] = default rule to reduce with in state s, when YYTABLE
doesn't specify something else to do. Zero means the default is an
error.
yydefgoto[i] = default state to go to after a reduction of a rule that
generates variable ntokens + i, except when yytable
specifies something else to do.
YYDEFGOTO[I] = default state to go to after a reduction of a rule
that generates variable NTOKENS + I, except when YYTABLE specifies
something else to do.
yypact[s] = index in yytable of the portion describing state s.
The lookahead token's type is used to index that portion
to find out what to do.
YYPACT[S] = index in YYTABLE of the portion describing state S.
The lookahead token's type is used to index that portion to find
out what to do.
If the value in yytable is positive,
we shift the token and go to that state.
If the value in YYTABLE is positive, we shift the token and go to
that state.
If the value is negative, it is minus a rule number to reduce by.
If the value is zero, the default action from yydefact[s] is used.
If the value is zero, the default action from YYDEFACT[S] is used.
yypgoto[i] = the index in yytable of the portion describing
what to do after reducing a rule that derives variable i + ntokens.
This portion is indexed by the parser state number, s,
as of before the text for this nonterminal was read.
The value from yytable is the state to go to if
the corresponding value in yycheck is s.
YYPGOTO[I] = the index in YYTABLE of the portion describing what to
do after reducing a rule that derives variable I + NTOKENS. This
portion is indexed by the parser state number, S, as of before the
text for this nonterminal was read. The value from YYTABLE is the
state to go to if the corresponding value in YYCHECK is S.
yytable = a vector filled with portions for different uses,
found via yypact and yypgoto.
YYTABLE = a vector filled with portions for different uses, found
via YYPACT and YYPGOTO.
yycheck = a vector indexed in parallel with yytable.
It indicates, in a roundabout way, the bounds of the
portion you are trying to examine.
YYCHECK = a vector indexed in parallel with YYTABLE. It indicates,
in a roundabout way, the bounds of the portion you are trying to
examine.
Suppose that the portion of yytable starts at index p
and the index to be examined within the portion is i.
Then if yycheck[p+i] != i, i is outside the bounds
of what is actually allocated, and the default
(from yydefact or yydefgoto) should be used.
Otherwise, yytable[p+i] should be used.
Suppose that the portion of yytable starts at index P and the index
to be examined within the portion is I. Then if YYCHECK[P+I] != I,
I is outside the bounds of what is actually allocated, and the
default (from YYDEFACT or YYDEFGOTO) should be used. Otherwise,
YYTABLE[P+I] should be used.
YYFINAL = the state number of the termination state.
YYFLAG = most negative short int. Used to flag ??
YYNTBASE = ntokens.
*/
YYFINAL = the state number of the termination state. YYFLAG = most
negative short int. Used to flag ?? */
#include "system.h"
#include "quotearg.h"