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0ce437ea97
Add a special case in the lexer to detect unterminated strings. Add some error recovery in the parser for more copious error spam.
61 lines
1.3 KiB
Plaintext
61 lines
1.3 KiB
Plaintext
%{
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#include "compile.h"
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#include "parser.tab.h" /* Generated by bison. */
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#define YY_USER_ACTION \
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do { \
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yylloc->start = yyget_extra(yyscanner); \
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yylloc->end = yylloc->start + yyleng; \
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yyset_extra(yylloc->end, yyscanner); \
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} while (0);
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%}
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%option noyywrap nounput noinput nodefault
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%option reentrant
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%option extra-type="int"
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%option bison-bridge bison-locations
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%option prefix="jq_yy"
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%%
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"==" { return EQ; }
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"as" { return AS; }
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"def" { return DEF; }
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"|=" { return SETPIPE; }
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"if" { return IF; }
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"then" { return THEN; }
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"else" { return ELSE; }
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"elif" { return ELSE_IF; }
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"and" { return AND; }
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"or" { return OR; }
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"not" { return NOT; }
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"end" { return END; }
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"//" { return DEFINEDOR; }
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"."|"="|";"|"["|"]"|","|":"|"("|")"|"{"|"}"|"|"|"+"|"-"|"*"|"/"|"\$" { return yytext[0];}
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\"(\\.|[^\\\"])*\" |
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-?[0-9.]+([eE][+-]?[0-9]+)? {
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yylval->literal = jv_parse_sized(yytext, yyleng); return LITERAL;
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}
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\"(\\.|[^\\\"])* {
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yylval->literal = jv_invalid_with_msg(jv_string("Unterminated string"));
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return LITERAL;
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}
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[[:alnum:]]+ { yylval->literal = jv_string(yytext); return IDENT;}
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[ \n\t]+ {}
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. { return INVALID_CHARACTER; }
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%%
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/* perhaps these should be calls... */
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/*
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"true" { return TRUE; }
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"false" { return FALSE; }
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"null" { return NULL; }
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*/
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