diff options
Diffstat (limited to 'src/luac/luac.c')
| -rw-r--r-- | src/luac/luac.c | 139 |
1 files changed, 112 insertions, 27 deletions
diff --git a/src/luac/luac.c b/src/luac/luac.c index 7546c1bb..713da1fb 100644 --- a/src/luac/luac.c +++ b/src/luac/luac.c @@ -1,25 +1,39 @@ /* ** luac.c -** lua compiler (saves bytecodes to files) +** lua compiler (saves bytecodes to files; also list binary files) */ -char* rcs_luac="$Id: luac.c,v 1.18 1996/11/16 20:14:23 lhf Exp $"; +char* rcs_luac="$Id: luac.c,v 1.23 1997/06/20 20:34:04 lhf Exp $"; #include <stdio.h> #include <stdlib.h> #include <string.h> #include "luac.h" +#include "lex.h" +#include "zio.h" static void compile(char* filename); +static void undump(char* filename); static int listing=0; /* list bytecodes? */ static int dumping=1; /* dump bytecodes? */ +static int undumping=0; /* undump bytecodes? */ static FILE* D; /* output file */ static void usage(void) { - fprintf(stderr,"usage: luac [-dlpv] [-o output] file ...\n"); - exit(0); + fprintf(stderr, + "usage: luac [-c | -u] [-d] [-l] [-p] [-q] [-v] [-o output] file ...\n" + " -c\tcompile (default)\n" + " -u\tundump\n" + " -d\tgenerate debugging information\n" + " -l\tlist (default for -u)\n" + " -o\toutput file for -c (default \"luac.out\")\n" + " -p\tparse only\n" + " -q\tquiet (default for -c)\n" + " -v\tshow version information\n" + ); + exit(1); } #define IS(s) (strcmp(argv[i],s)==0) @@ -34,6 +48,11 @@ int main(int argc, char* argv[]) break; else if (IS("-")) /* use stdin */ break; + else if (IS("-c")) /* compile (and dump) */ + { + dumping=1; + undumping=0; + } else if (IS("-d")) /* debug */ lua_debug=1; else if (IS("-l")) /* list */ @@ -42,6 +61,14 @@ int main(int argc, char* argv[]) d=argv[++i]; else if (IS("-p")) /* parse only (for timing purposes) */ dumping=0; + else if (IS("-q")) /* quiet */ + listing=0; + else if (IS("-u")) /* undump */ + { + dumping=0; + undumping=1; + listing=1; + } else if (IS("-v")) /* show version */ printf("%s %s\n(written by %s)\n\n",LUA_VERSION,LUA_COPYRIGHT,LUA_AUTHORS); else /* unknown option */ @@ -50,56 +77,114 @@ int main(int argc, char* argv[]) --i; /* fake new argv[0] */ argc-=i; argv+=i; - if (argc<2) usage(); - for (i=1; i<argc; i++) - if (IS(d)) + if (dumping) + { + if (argc<2) usage(); + for (i=1; i<argc; i++) /* play safe with output file */ + if (IS(d)) + { + fprintf(stderr,"luac: will not overwrite input file \"%s\"\n",d); + exit(1); + } + D=fopen(d,"wb"); /* must open in binary mode */ + if (D==NULL) { - fprintf(stderr,"luac: will not overwrite input file \"%s\"\n",d); + fprintf(stderr,"luac: cannot open "); + perror(d); exit(1); } - D=(dumping) ? fopen(d,"wb") : stdout; /* must open in binary mode */ - if (D==NULL) + for (i=1; i<argc; i++) compile(IS("-")? NULL : argv[i]); + fclose(D); + } + if (undumping) { - fprintf(stderr,"luac: cannot open "); - perror(d); - exit(1); + if (argc<2) + undump("luac.out"); + else + for (i=1; i<argc; i++) undump(IS("-")? NULL : argv[i]); } - for (i=1; i<argc; i++) compile(IS("-")? NULL : argv[i]); - fclose(D); return 0; } -static void do_dump(TFunc* tf) /* only for tf==main */ +static void do_dump(TFunc* Main) { - if (dumping) DumpHeader(D); - while (tf!=NULL) + TFunc* tf; + LinkFunctions(Main); + if (listing) + { + for (tf=Main; tf!=NULL; tf=tf->next) PrintFunction(tf,Main); + } + if (dumping) { - TFunc* nf; - if (listing) PrintFunction(tf); - if (dumping) DumpFunction(tf,D); - nf=tf->next; /* list only built after first main */ + DumpHeader(D); + for (tf=Main; tf!=NULL; tf=tf->next) DumpFunction(tf,D); + } + for (tf=Main; tf!=NULL; ) + { + TFunc* nf=tf->next; luaI_freefunc(tf); tf=nf; } } -static void do_compile(void) +static void do_compile(ZIO* z) { TFunc* tf=new(TFunc); + lua_setinput(z); luaI_initTFunc(tf); - tf->fileName = lua_parsedfile; + tf->fileName=lua_parsedfile; lua_parse(tf); do_dump(tf); } static void compile(char* filename) { - if (lua_openfile(filename)==NULL) + FILE* f= (filename==NULL) ? stdin : fopen(filename, "r"); + if (f==NULL) + { + fprintf(stderr,"luac: cannot open "); + perror(filename); + exit(1); + } + else + { + ZIO z; + zFopen(&z,f); + luaI_setparsedfile(filename?filename:"(stdin)"); + do_compile(&z); + fclose(f); + } +} + +static void do_undump(ZIO* z) +{ + TFunc* Main; + while ((Main=luaI_undump1(z))) + { + if (listing) + { + TFunc* tf; + for (tf=Main; tf!=NULL; tf=tf->next) + PrintFunction(tf,Main); + } + luaI_freefunc(Main); /* TODO: free others */ + } +} + +static void undump(char* filename) +{ + FILE* f= (filename==NULL) ? stdin : fopen(filename, "rb"); + if (f==NULL) { fprintf(stderr,"luac: cannot open "); perror(filename); exit(1); } - do_compile(); - lua_closefile(); + else + { + ZIO z; + zFopen(&z,f); + do_undump(&z); + fclose(f); + } } |