寫了個腳本列出lua源碼C文件頭部的注釋，作為我有一搭沒一搭以Lua為對象學習編譯原理的開端。

lua5.1.4全部的源碼有35個C文件，17216行代碼。每個文件基本的功能如下

./output_lua_sources_comments.sh ~/resources/sources/lua/src????????????????????????????????????????????????????????????????????????????????? myarch/others (master ?) mattPC
???? 1?? ?52??? lctype.c?????? 'ctype' functions for Lua
???? 2?? ?67??? linit.c??????? Initialization of libraries for lua.c and other clients
???? 3?? ?76??? lzio.c???????? Buffered streams
???? 4?? ?77??? ltm.c????????? Tag methods
???? 5?? ?99??? lmem.c???????? Interface to Memory Manager
???? 6?? ?107?? lopcodes.c???? Opcodes for Lua virtual machine
???? 7?? ?155?? lcorolib.c???? Coroutine Library
???? 8?? ?161?? lfunc.c??????? Auxiliary functions to manipulate prototypes and closures
???? 9?? ?173?? ldump.c??????? save precompiled Lua chunks
??? 10?? ?185?? lstring.c????? String table (keeps all strings handled by Lua)
??? 11?? ?209?? lbitlib.c????? Standard library for bitwise operations
??? 12?? ?258?? lundump.c????? load precompiled Lua chunks
??? 13?? ?283?? lmathlib.c???? Standard mathematical library
??? 14?? ?283?? ltablib.c????? Library for Table Manipulation
??? 15?? ?289?? lobject.c????? Some generic functions over Lua objects
??? 16?? ?322?? lstate.c?????? Global State
??? 17?? ?323?? loslib.c?????? Standard Operating System library
??? 18?? ?398?? ldblib.c?????? Interface from Lua to its debug API
??? 19?? ?432?? luac.c???????? Lua compiler (saves bytecodes to files; also list bytecodes)
??? 20?? ?459?? lbaselib.c???? Basic library
??? 21?? ?496?? lua.c????????? Lua stand-alone interpreter
??? 22?? ?527?? llex.c???????? Lexical Analyzer
??? 23?? ?580?? ldebug.c?????? Debug Interface
??? 24?? ?588?? ltable.c?????? Lua tables (hash)
??? 25?? ?657?? liolib.c?????? Standard I/O (and system) library
??? 26?? ?668?? ldo.c????????? Stack and Call structure of Lua
??? 27?? ?725?? loadlib.c????? Dynamic library loader for Lua
??? 28?? ?766?? loadlib_rel.c? Dynamic library loader for Lua
??? 29?? ?868?? lvm.c????????? Lua virtual machine
??? 30?? ?882?? lcode.c??????? Code generator for Lua
??? 31?? ?958?? lauxlib.c????? Auxiliary functions for building Lua libraries
??? 32?? ?972?? lstrlib.c????? Standard library for string operations and pattern-matching
??? 33?? ?1205? lgc.c????????? Garbage Collector
??? 34?? ?1281? lapi.c???????? Lua API
??? 35?? ?1635? lparser.c????? Lua Parser
----------------------------------------------------------------------------------------
??????? 17216

以下是bash腳本，內容也算豐富。

1 [[ "$#" == 0 ]] && { 2 echo "usage: $0 path" 3 exit 1 4 } 5 6 src_dir="$1" 7 pos=$((${#src_dir}+2)) 8 9 outline () 10 { 11 printf "%-6d%-15s%s\n" "$1" "$2" "$3" 12 } 13 14 { 15 for file in `ls -1 "$src_dir""/*.c"` ; do 16 comment=`sed -n "3p" $file | cut -d" " -f2-` 17 filename=`basename $file` 18 lines=`wc -l $file | cut -d" " -f1` 19 outline "$lines" "$filename" "$comment" 20 done 21 } | sort -nk 1| cat -b | awk '{ if(l<length($0)){ l=length($0)}; s+=$2; print $0} 22 END { while(l--){ sp=sp"-"} print sp ;printf("%8s%-6d\n","",s)}'

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轉載于:https://www.cnblogs.com/mattmonkey/archive/2012/12/08/2808502.html

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