Bison Syntax Error Unexpected Integer
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Syntax Error Bison
of this site About Us Learn more about Stack Overflow the company bison syntax error unexpected identifier expecting string Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs 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 them; it only takes a minute: Sign up Syntax error in Bison after one token is processed up vote 2 down vote favorite 1 I am trying to come up to speed on Flex and Bison. I can parse one token with a very simple "language" but it fails on the second, even though the token is legitimate. test.l: %{ #include
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs 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 them; it only takes a minute: Sign up bison unexpected identifier error up vote -1 down vote favorite I'm getting an "unexpected identifier error", at 1-9, on the line string_op | string_lit { $$ = $1; } here is my grammar %union { int intval; double http://stackoverflow.com/questions/5806862/syntax-error-in-bison-after-one-token-is-processed dubval; char* strval; obj object; } %token
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company http://stackoverflow.com/questions/30831943/bisonsyntax-error-at-the-end-of-parsing Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, http://www.gnu.org/s/bison/manual/html_node/_0025define-Summary.html just like you, helping each other. Join them; it only takes a minute: Sign up Bison:syntax error at the end of parsing up vote 1 down vote favorite Hello this is my bison grammar file for a syntax error mini-programming language: %{ #include
some such features are assigned values by dedicated directives, such as %start, which assigns the start symbol. However, newer 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 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 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; } } Accepted Values: Any absolute or relative C++ namespace reference without a trailing "::". For example, "foo" or "::foo::bar". Default Value: The value specified by %name-prefix, which defaults to yy. This usage of %name-prefix is for backward compatibility and can be confusing since %name-prefix also specifies the textual prefix for the lexical analyzer function. Thus, if you specify %name-prefix, it is best to also specify ‘%define api.namespace’ so that %name-prefix only affects the lexical analyzer function. For example, if you specify: %define api.namespace {foo} %name-prefix "bar::" The parser namespace is foo and yylex is referenced as bar::lex. Directive: %define api.location.type {type} Languag