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doc: check the rpcalc.
* doc/bison.texinfo: Tag rpcalc.y snippets. Add missing includes. (Rpcalc Rules): Don't issue leading tabs. Complete an Info menu. Use @result. * examples/rpcalc/local.mk: New. * examples/rpcalc/rpcalc.test: New. * examples/local.mk: Use them. * examples/mfcalc/mfcalc.test: Remove dup test. * examples/test: Disable debug traces.
This commit is contained in:
Akim Demaille
@@ -163,9 +163,9 @@ Reverse Polish Notation Calculator
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Grammar Rules for @code{rpcalc}
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* Rpcalc Input::
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* Rpcalc Line::
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* Rpcalc Expr::
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* Rpcalc Input:: Explanation of the @code{input} nonterminal
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* Rpcalc Line:: Explanation of the @code{line} nonterminal
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* Rpcalc Expr:: Explanation of the @code{expr} nonterminal
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Location Tracking Calculator: @code{ltcalc}
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@@ -1517,11 +1517,13 @@ The source code for this calculator is named @file{rpcalc.y}. The
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Here are the C and Bison declarations for the reverse polish notation
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calculator. As in C, comments are placed between @samp{/*@dots{}*/}.
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@comment file: rpcalc.y
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@example
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/* Reverse polish notation calculator. */
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%@{
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#define YYSTYPE double
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#include <stdio.h>
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#include <math.h>
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int yylex (void);
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void yyerror (char const *);
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@@ -1566,13 +1568,14 @@ type for numeric constants.
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Here are the grammar rules for the reverse polish notation calculator.
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@comment file: rpcalc.y
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@example
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input: /* empty */
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| input line
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;
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line: '\n'
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| exp '\n' @{ printf ("\t%.10g\n", $1); @}
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| exp '\n' @{ printf ("%.10g\n", $1); @}
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;
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exp: NUM @{ $$ = $1; @}
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@@ -1607,9 +1610,9 @@ main job of most actions. The semantic values of the components of the
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rule are referred to as @code{$1}, @code{$2}, and so on.
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@menu
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* Rpcalc Input::
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* Rpcalc Line::
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* Rpcalc Expr::
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* Rpcalc Input:: Explanation of the @code{input} nonterminal
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* Rpcalc Line:: Explanation of the @code{line} nonterminal
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* Rpcalc Expr:: Explanation of the @code{expr} nonterminal
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@end menu
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@node Rpcalc Input
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@@ -1653,7 +1656,7 @@ Now consider the definition of @code{line}:
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@example
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line: '\n'
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| exp '\n' @{ printf ("\t%.10g\n", $1); @}
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| exp '\n' @{ printf ("%.10g\n", $1); @}
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;
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@end example
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@@ -1769,6 +1772,7 @@ A token type code of zero is returned if the end-of-input is encountered.
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Here is the code for the lexical analyzer:
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@comment file: rpcalc.y
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@example
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@group
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/* The lexical analyzer returns a double floating point
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@@ -1817,6 +1821,7 @@ In keeping with the spirit of this example, the controlling function is
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kept to the bare minimum. The only requirement is that it call
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@code{yyparse} to start the process of parsing.
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@comment file: rpcalc.y
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@example
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@group
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int
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@@ -1837,6 +1842,7 @@ always @code{"syntax error"}). It is up to the programmer to supply
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@code{yyerror} (@pxref{Interface, ,Parser C-Language Interface}), so
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here is the definition we will use:
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@comment file: rpcalc.y
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@example
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@group
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#include <stdio.h>
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@@ -1919,15 +1925,15 @@ example session using @code{rpcalc}.
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@example
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$ @kbd{rpcalc}
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@kbd{4 9 +}
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13
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@result{} 13
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@kbd{3 7 + 3 4 5 *+-}
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-13
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@result{} -13
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@kbd{3 7 + 3 4 5 * + - n} @r{Note the unary minus, @samp{n}}
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13
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@result{} 13
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@kbd{5 6 / 4 n +}
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-3.166666667
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@result{} -3.166666667
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@kbd{3 4 ^} @r{Exponentiation}
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81
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@result{} 81
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@kbd{^D} @r{End-of-file indicator}
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$
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@end example
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@@ -20,3 +20,4 @@ TEST_LOG_COMPILER = $(top_srcdir)/examples/test
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include examples/calc++/local.mk
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include examples/mfcalc/local.mk
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include examples/rpcalc/local.mk
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@@ -19,7 +19,6 @@ cat >input <<EOF
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1+2*3
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EOF
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run 0 7
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run 0 7
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cat >input <<EOF
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(1+2) * 3
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3
examples/rpcalc/.gitignore
vendored
Normal file
3
examples/rpcalc/.gitignore
vendored
Normal file
@@ -0,0 +1,3 @@
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/calc.h
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/rpcalc.stamp
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/rpcalc.y
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57
examples/rpcalc/local.mk
Normal file
57
examples/rpcalc/local.mk
Normal file
@@ -0,0 +1,57 @@
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## Process this file with automake to produce Makefile.in -*-Makefile-*-
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## Copyright (C) 2005-2006, 2008-2012 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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## ------------ ##
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## Extracting. ##
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## ------------ ##
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# Extract in src.
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$(top_srcdir)/examples/rpcalc/rpcalc.stamp: $(doc) $(extexi)
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$(AM_V_GEN)rm -f $@ $@.tmp
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$(AM_V_at)touch $@.tmp
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$(AM_V_at)cd $(top_srcdir)/examples/rpcalc && \
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$(AWK) -f ../extexi -v VERSION="$(VERSION)" \
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../../doc/bison.texinfo -- calc.h rpcalc.y
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$(AM_V_at)mv $@.tmp $@
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$(rpcalc_extracted): $(top_srcdir)/examples/rpcalc/rpcalc.stamp
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$(AM_V_GEN)if test -f $@; then :; else \
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rm -f $< && \
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$(MAKE) $(AM_MAKEFLAGS) $<; \
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fi
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## -------------------- ##
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## Building & testing. ##
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## -------------------- ##
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BUILT_SOURCES += $(rpcalc_sources)
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MAINTAINERCLEANFILES += $(top_srcdir)/examples/rpcalc/rpcalc.stamp $(rpcalc_sources)
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EXTRA_DIST += examples/rpcalc/rpcalc.stamp
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rpcalc_extracted = \
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examples/rpcalc/rpcalc.y
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rpcalc_sources = \
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$(rpcalc_extracted)
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check_PROGRAMS += examples/rpcalc/rpcalc
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examples_rpcalc_rpcalc_LDADD = -lm
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examples_rpcalc_rpcalc_SOURCES = \
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$(rpcalc_sources)
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examples_rpcalc_rpcalc_CPPFLAGS = -I$(top_srcdir)/examples/rpcalc
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TESTS += examples/rpcalc/rpcalc.test
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EXTRA_DIST += examples/rpcalc/rpcalc.test
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46
examples/rpcalc/rpcalc.test
Executable file
46
examples/rpcalc/rpcalc.test
Executable file
@@ -0,0 +1,46 @@
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#! /bin/sh
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# Copyright (C) 2005-2012 Free Software Foundation, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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cat >input <<EOF
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1 2 3 * +
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EOF
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run 0 7
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cat >input <<EOF
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1.1 2.2 3.3 * +
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EOF
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run 0 8.36
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cat >input <<EOF
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1 2 + 3 *
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EOF
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run 0 9
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cat >input <<EOF
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1 2 3 4 5 6 7 8 9 * * * * * * * *
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EOF
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run 0 362880
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cat >input <<EOF
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3 7 + 3 4 5 * + - n
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EOF
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run 0 13
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cat >input <<EOF
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3 4 ^
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EOF
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run 0 81
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@@ -1,5 +1,5 @@
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#! /bin/sh
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set -x
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# Copyright (C) 2005-2012 Free Software Foundation, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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