linux m4命令
时间：2009-03-23 来源：sjhf
M4官方下载地址M4 (1.4): ftp://ftp.gnu.org/gnu/m4/M4的内容M4 是一个宏处理器.将输入拷贝到输出,同时将宏展开. 宏可以是内嵌的也可以是用户定义的. 除了可以展开宏,m4还有一些内建的函数,用来引用文件,执行Unix命令,整数运算,文本操作,循环等. m4既可以作为编译器的前端也可以单独作为一个宏处理器. 安装下列程序: m4简短说明m4 将输入拷贝到输出,同时将宏展开. 宏可以是内嵌的也可以是用户定义的. 除了可以展开宏,m4还有一些内建的函数,用来引用文件,执行Unix命令,整数运算,文本操作,循环等. m4既可以作为编译器的前端也可以单独作为一个宏处理器。M4 安装依赖关系M4 依赖于: Bash, Binutils, Coreutils, Diffutils, GCC, Gettext, Glibc, Grep, Make, Perl, Sed.m4手册 man m4: NAME m4 - macro processor SYNOPSIS m4 [OPTION]... [FILE]... DESCRIPTION Process macros in FILEs. If no FILE or if FILE is ‘-’, standard input is read. Mandatory or optional arguments to long options are mandatory or optional for short options too. Operation modes: --help display this help and exit --version output version information and exit -E, --fatal-warnings once: warnings become errors, twice: stop execution at first error -i, --interactive unbuffer output, ignore interrupts -P, --prefix-builtins force a ‘m4_’ prefix to all builtins -Q, --quiet, --silent suppress some warnings for builtins --warn-macro-sequence[=REGEXP] warn if macro definition matches REGEXP, default \$\({[^}]*}\|[0-9][0-9]+\) Preprocessor features: -D, --define=NAME[=VALUE] define NAME as having VALUE, or empty -I, --include=DIRECTORY append DIRECTORY to include path -s, --synclines generate ‘#line NUM "FILE"’ lines -U, --undefine=NAME undefine NAME Limits control: -G, --traditional suppress all GNU extensions -H, --hashsize=PRIME set symbol lookup hash table size [509] -L, --nesting-limit=NUMBER change artificial nesting limit [1024] Frozen state files: -F, --freeze-state=FILE produce a frozen state on FILE at end -R, --reload-state=FILE reload a frozen state from FILE at start Debugging: -d, --debug[=FLAGS] set debug level (no FLAGS implies ‘aeq’) --debugfile=FILE redirect debug and trace output -l, --arglength=NUM restrict macro tracing size -t, --trace=NAME trace NAME when it is defined FLAGS is any of: a show actual arguments c show before collect, after collect and after call e show expansion f say current input file name i show changes in input files l say current input line number p show results of path searches q quote values as necessary, with a or e flag t trace for all macro calls, not only traceon’ed x add a unique macro call id, useful with c flag V shorthand for all of the above flags If defined, the environment variable ‘M4PATH’ is a colon-separated list of directories included after any specified by ‘-I’. Exit status is 0 for success, 1 for failure, 63 for frozen file version mismatch, or whatever value was passed to the m4exit macro. AUTHOR Written by Rene’ Seindal. REPORTING BUGS Report bugs to <[email protected]>. COPYRIGHT Copyright © 2007 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO The full documentation for m4 is maintained as a Texinfo manual. If the info and m4 programs are properly installed at your site, the com- mand info m4 should give you access to the complete manual. FSF July 2007 M4(1) |
相关阅读 更多 +
排行榜 更多 +
