Questions tagged «lex»

5
Flex / Lex和Yacc / Bison有什么区别?
Flex&Lex和Yacc&Bison有什么区别。我在互联网上疯狂搜索,但没有找到可靠的答案。 我可以在Ubuntu上安装纯Lex和Yacc,还是只能安装flex和bison。我很困惑。 Lex或Yacc仍由某人维护吗? 他们都免费吗? 如果Lex不是免费的,为什么要在Ubuntu发行版中安装它? lex --version lex 2.5.35
122 parsing  bison  yacc  flex-lexer  lex 

4
错误:未知类型名称“ bool”
我下载了源代码,并希望编译扫描程序的文件。它产生此错误: [meepo@localhost cs143-pp1]$ gcc -o lex.yy.o lex.yy.c -ll In file included from scanner.l:15:0: scanner.h:59:5: error: unknown type name ‘bool’ In file included from scanner.l:16:0: utility.h:64:38: error: unknown type name ‘bool’ utility.h:74:1: error: unknown type name ‘bool’ In file included from scanner.l:17:0: errors.h:16:18: fatal error: string: No such file or directory …
86 c  gcc  lex 
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