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doc: more pointers to the examples

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* doc/bison.texi (Infix Calc): Here.
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Akim Demaille
2021-08-05 07:57:59 +02:00
parent 85032e9630
commit d4b195ece6
1 changed files with 10 additions and 7 deletions
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doc/bison.texi
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@@ -2204,7 +2204,10 @@ $
@cindex @code{calc} @cindex @code{calc}
@cindex calculator, infix notation @cindex calculator, infix notation
We now modify rpcalc to handle infix operators instead of postfix. Infix We now modify rpcalc to handle infix operators instead of
postfix.@footnote{A similar example, but using an unambiguous grammar rather
than precedence and associativity annotations, is available as
@file{examples/c/calc}.} Infix
notation involves the concept of operator precedence and the need for notation involves the concept of operator precedence and the need for
parentheses nested to arbitrary depth. Here is the Bison code for parentheses nested to arbitrary depth. Here is the Bison code for
@file{calc.y}, an infix desk-top calculator. @file{calc.y}, an infix desk-top calculator.
@@ -2560,12 +2563,12 @@ valid input, in comments, in literal strings, and so on.
@cindex @code{mfcalc} @cindex @code{mfcalc}
@cindex calculator, multi-function @cindex calculator, multi-function
Now that the basics of Bison have been discussed, it is time to move on to Now that the basics of Bison have been discussed, it is time to move on to a
a more advanced problem.@footnote{The sources of @command{mfcalc} are available as more advanced problem.@footnote{The sources of @command{mfcalc} are
@file{examples/c/mfcalc}.} The above calculators provided only five available as @file{examples/c/mfcalc}.} The above calculators provided only
functions, @samp{+}, @samp{-}, @samp{*}, @samp{/} and @samp{^}. It would five functions, @samp{+}, @samp{-}, @samp{*}, @samp{/} and @samp{^}. It
be nice to have a calculator that provides other mathematical functions such would be nice to have a calculator that provides other mathematical
as @code{sin}, @code{cos}, etc. functions such as @code{sin}, @code{cos}, etc.
It is easy to add new operators to the infix calculator as long as they are It is easy to add new operators to the infix calculator as long as they are
only single-character literals. The lexical analyzer @code{yylex} passes only single-character literals. The lexical analyzer @code{yylex} passes