Bison Syntax Error Unexpected Identifier Expecting Type
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Syntax Error Unexpected Expecting Identifier T_string
Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. syntax error unexpected identifier expecting class Join them; it only takes a minute: Sign up Bison Syntax Error (Beginner) up vote 0 down vote favorite 1 I'm back and now writing my own language and my OS, but as I'm now starting in the development
Syntax Error Unexpected List T_list Expecting Identifier T_string
of my own development language, I'm getting some errors when using Bison and I don't know how to solve them. This is my *.y file code: input: | input line ; line: '\n' | exp '\n' { printf ("\t%.10g\n", $1); } ; exp: NUM { $$ = $1; } | exp exp '+' { $$ = $1 + $2; } | exp exp '-' { $$ = $1 - $2; } | exp exp '*' { $$ = syntax error unexpected identifier mongodb $1 * $2; } | exp exp '/' { $$ = $1 / $2; } /* Exponentiation */ | exp exp '^' { $$ = pow ($1, $2); } /* Unary minus */ | exp 'n' { $$ = -$1; } ; %% And when I try to use Bison with this source code I'm getting this error: calc.y:1.1-5: syntax error, unexpected identifier: yacc bison share|improve this question edited Oct 11 '09 at 15:47 Jonathan Leffler 437k61507821 asked Oct 11 '09 at 15:04 Nathan Campos 10.2k37149260 add a comment| 1 Answer 1 active oldest votes up vote 6 down vote accepted You need a '%%' before the rules as well as after them (or, strictly, instead; if there is no code after the second '%%', you can omit that line). You will also need a '%token NUM' before the first '%%'; the grammar then passes Bison. share|improve this answer edited Oct 11 '09 at 15:51 answered Oct 11 '09 at 15:45 Jonathan Leffler 437k61507821 Thanks very much Jonathan! –Nathan Campos Oct 11 '09 at 15:53 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of se
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Mongoimport Syntax Error Unexpected Identifier
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Javascript Syntax Error Unexpected Identifier
Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs node.js syntax error unexpected identifier Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join http://stackoverflow.com/questions/1550902/bison-syntax-error-beginner them; it only takes a minute: Sign up Bison unexpected indentifier error up vote 0 down vote favorite %{ #include
some such features are assigned values by dedicated directives, such as %start, which assigns the start symbol. However, newer http://www.gnu.org/s/bison/manual/html_node/_0025define-Summary.html such features are associated with variables, which are assigned by the %define directive: Directive: %define variable Directive: %define variable value Directive: %define variable {value} Directive: %define variable "value" Define variable to value. The type of the values depend on the syntax. Braces denote value in the target language (e.g., a namespace, a syntax error type, etc.). Keyword values (no delimiters) denote finite choice (e.g., a variation of a feature). String values denote remaining cases (e.g., a file name). It is an error if a variable is defined by %define multiple times, but see -D name[=value]. The rest of this section summarizes variables and values that %define syntax error unexpected accepts. Some variables take Boolean values. In this case, Bison will complain if the variable definition does not meet one of the following four conditions: value is true value is omitted (or "" is specified). This is equivalent to true. value is false. variable is never defined. In this case, Bison selects a default value. What variables are accepted, as well as their meanings and default values, depend on the selected target language and/or the parser skeleton (see %language, see %skeleton). Unaccepted variables produce an error. Some of the accepted variables are described below. Directive: %define api.namespace {namespace} Languages(s): C++ Purpose: Specify the namespace for the parser class. For example, if you specify: %define api.namespace {foo::bar} Bison uses foo::bar verbatim in references such as: foo::bar::parser::semantic_type However, to open a namespace, Bison removes any leading :: and then splits on any remaining occurrences: namespace foo { namespace bar { class position; class location; } } Accepte