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asciitoscorp.c
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#if 0
gcc -s -O2 -o ~/bin/asciitoscorp -Wno-multichar asciitoscorp.c
exit
#endif
#define _GNU_SOURCE
#include <err.h>
#include <glob.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
enum {
IM_UNKNOWN,
IM_NORMAL,
IM_DATA,
IM_BODY,
IM_TEMPLATE,
};
enum {
TOK_EOF,
TOK_CHAR,
TOK_TRON_CHAR,
TOK_COMMAND,
TOK_COMMAND_BEGIN,
TOK_COMMAND_END,
TOK_COMMAND_MID,
TOK_BLANK_LINE,
};
enum {
#define X(xxx) CMD_##xxx,
#include "asciitoscorp.inc"
#undef X
};
static const char*const commands[]={
#define X(xxx) #xxx,
#include "asciitoscorp.inc"
#undef X
};
#define Error(xxx,...) errx(1,"Error on line %d: "xxx,linenum,##__VA_ARGS__)
static int linenum=1;
static char*attrbuf;
static size_t attrlen;
static FILE*attrf;
static char*bodybuf;
static size_t bodylen;
static FILE*bodyf;
static uint8_t curchset=0x10;
static uint32_t tokent,tokenv;
static FILE*infile;
static char internalmode;
static char multimode;
static char regen_flag;
static FILE*controlfile;
static char controlfile_done;
static unsigned int seqnum;
static FILE*dataf;
static uint8_t data_code=0;
static char*template;
static char verbose;
#define InvalidTC(xxx,yyy) ((((xxx)>>yyy)&0xFF)==0x7F || (((xxx)>>yyy)&0xFF)<0x21 || (((xxx)>>yyy)&0xFF)>0xFD)
static int do_multi(FILE*f);
static inline int inp(void) {
int c;
retry:
while((c=fgetc(infile))=='\r');
if(c=='\n' && infile==stdin) linenum++;
if(c==EOF && infile!=stdin) {
pclose(infile);
infile=stdin;
goto retry;
}
return c;
}
static uint32_t read_euctron(int k,int c) {
int p=-0x80;
int d;
if(c==0x90 || c==0x91) {
p=(c&1?0:-0x40);
c=inp();
}
while(c==0x80) p+=0x100,c=inp();
p+=c;
c=inp(); d=inp();
p=(p<<16)+(c<<8)+d;
switch(k) {
case 0x88: return p^0x8080;
case 0x89: return p^0x0080;
case 0x8A: return p^0x8000;
case 0x8B: return p^0x0000;
case 0x8C: return (c<0xC0?p-0x2080:(p&~0xFFFF)+(d<<8)+c-0x8040);
case 0x8D: return (c<0xC0?p-0x2000:c<0xE0?(p&~0xFFFF)+(d<<8)+c-0x0040:p-0x6060);
}
}
static uint32_t read_tchar(int c) {
static const uint8_t jisx[0x80]={
0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0xA1, 0xA3,0xA4,0xA5,0xA8, 0xAC,0xAD,0xAE,0xAF,
0xEE,0xEF,0xF0,0xF1, 0xF2,0xF3,0xF4,0xF5, 0xF6,0xF7,0xF8,0xF9, 0xFA,0xFB,0xFC,0xFD,
0xFE,0x87,0x00,0x88, 0x89,0x8A,0x00,0x00, 0x8B,0x00,0x00,0x00, 0x8C,0x8D,0x8E,0x8F,
0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, 0x00,0x00,0x90,0x91,
0x92,0x93,0x94,0x95, 0x96,0x97,0x98,0x99, 0x9A,0x9B,0x9C,0x9D, 0x9E,0x9F,0xA0,0x00,
};
uint32_t v=0;
int d;
if(c==0x20) return 0x20;
if(c<0x7F) return c+0x702200; //TODO: possibly change this to convert ASCII to JIS
d=inp();
if(d<0x80) Error("Truncated character code");
convert: switch(curchset&0x0F) {
case 0x01: // EUC-JP or EUC-TRON
if(c==0x8F) {
c=d; d=inp();
if(d<0x80) Error("Truncated character code");
v=((jisx[c&0x7F]?:c)<<8)^d^0x210080;
} else if(c==0x8E) {
v=d+0x702300;
} else if(c>=0x88 && c<=0x8D) {
v=read_euctron(c,d);
} else {
v=(c<<8)^d^0x218080;
}
break;
case 0x02: // EUC-CN
c-=0xA1; d-=0xA1;
c=c*94+d;
v=((c/126+0x21)<<8)|(c%126+0x210080);
break;
case 0x04: // EUC-KR
c-=0xA1; d-=0xA1;
c=c*94+d;
v=((c/126+0xB7)<<8)|(c%126+0x210080);
break;
}
if(InvalidTC(v,0) || InvalidTC(v,8) || InvalidTC(v,16)) Error("Invalid character code: <%lX>",(long)v);
return v;
}
static int read_charset(void) {
int i;
char b[16];
int c;
for(i=0;;) {
c=inp();
if(c=='>') break;
if(c==EOF) Error("Unexpected end of file");
if(c==' ' || c=='\n') Error("Unterminated charset name");
if(i==15) Error("Too long charset name");
if((c>='A' && c<='Z') || (c>='0' && c<='9')) b[i++]=c;
else if(c>='a' && c<='z') b[i++]=c+'A'-'a';
else if(c!='-' && c!='_') Error("Invalid character in charset name");
}
b[i]=0;
if(!strcmp(b,"ASCII") || !strcmp(b,"PC")) return 0x10;
if(!strcmp(b,"EUCJP") || !strcmp(b,"JP") || !strcmp(b,"EUCTRON") || !strcmp(b,"TRON") || !strcmp(b,"TRON8")) return 0x01;
if(!strcmp(b,"EUCCN") || !strcmp(b,"CN")) return 0x02;
if(!strcmp(b,"EUCKR") || !strcmp(b,"KR")) return 0x04;
if(!strcmp(b,"EUCTRONLTR") || !strcmp(b,"TRONLTR") || !strcmp(b,"TRON8LTR")) return 0x01;
if(!strcmp(b,"EUCTRONRTL") || !strcmp(b,"TRONRTL") || !strcmp(b,"TRON8RTL")) return 0x81;
Error("Invalid charset name: %s",b);
}
static void open_pipe_for_input(void) {
char com[0x800];
int n=0;
int c;
for(;;) {
c=inp();
if(c==EOF || c<' ') Error("Improper character in <! !> block or unterminated <! !> block");
if(n && c=='>' && com[n-1]=='!') break;
if(n>=0x7FF) Error("Too long command in <! !> block");
com[n++]=c;
}
com[n-1]=0;
infile=popen(com,"r");
if(!infile) err(3,"Cannot open pipe for input");
}
static void set_skipping(void) {
char com[0x800];
int n;
int c;
restart:
for(n=0;;) {
c=inp();
if(c==EOF || c<' ') Error("Improper character in <? ?> block or unterminated <? ?> block");
if(n && c=='>' && com[n-1]=='?') break;
if(n>=0x7FF) Error("Too long command in <? ?> block");
com[n++]=c;
}
com[n-1]=0;
for(n=c=0;com[n];n++) c|=com[n];
if(!c) return;
c=system(com);
if(WIFSIGNALED(c)) errx(1,"Signaled");
if(!WEXITSTATUS(c)) return;
// Do skipping
for(n=0;;) {
c=inp();
if(c==EOF) return;
if(c=='<') n=1; else if(c=='?' && n==1) goto restart; else n=0;
}
}
static int compare_commands(const void*a,const void*b) {
return strcmp(*(const char**)a,*(const char**)b);
}
static void nexttok(void) {
static char linestate=0;
static char heredoc=0;
static char heredocs[32];
static char m=0;
static char n=0;
const char**q;
int c,i,h;
char key[16];
char*pkey=key;
restart:
if(heredoc&~1) {
if(n==m) {
m=n=0;
c=heredoc&0xFF;
heredoc=1;
goto nheredoc;
} else {
tokent=TOK_CHAR;
tokenv=heredocs[n++]&0xFF;
return;
}
}
while(heredoc) {
c=inp();
if(c==EOF) {
Error("Unexpected end of file in heredoc");
} else if(c=='\n' && !heredocs[m]) {
linestate=0;
m=n=heredoc=0;
tokent=TOK_COMMAND;
tokenv=CMD_BR;
return;
} else if(c==heredocs[m]) {
m++;
} else if(m) {
n=1;
heredoc=c;
tokent=TOK_COMMAND;
tokenv=CMD_BR;
return;
} else {
nheredoc:
tokent=TOK_CHAR,tokenv=c;
if(c=='\t') tokent=TOK_COMMAND,tokenv=CMD_TAB;
else if(c=='\n') tokent=TOK_COMMAND,tokenv=CMD_BR;
else if(!(c&~0x1F)) Error("Improper character in heredoc");
return;
}
}
if(linestate>2) {
if(linestate>6) c=0xFF&*heredocs,linestate-=4; else c=inp();
if(c=='}' && linestate<5) {
linestate+=2;
goto restart;
} else if((linestate==5 && c=='>') || (linestate==6 && c=='|')) {
linestate=1;
goto restart;
} else if(linestate>4) {
tokent=TOK_CHAR;
tokenv='}';
*heredocs=c;
linestate+=2;
return;
} else {
tokent=TOK_CHAR;
tokenv=c;
return;
}
}
c=inp();
tokenv=0;
if(c==EOF) {
eof:
tokent=TOK_EOF;
} else if(c=='<' || c=='|') {
linestate=1;
tokent=(c=='<'?TOK_COMMAND:TOK_COMMAND_END);
for(h=i=0;i<16;i++) {
c=inp();
if(c=='$' && !i) {
i=read_charset();
if((0xF0&(i^curchset)) && ftell(bodyf)) Error("Cannot change charset at this time");
curchset=i;
goto restart;
} else if(c=='=' && !i && tokent==TOK_COMMAND_END) {
linestate=0;
for(;;) {
c=inp();
if(c=='\n') goto restart;
if(c==EOF) goto eof;
}
goto restart;
} else if(c=='{' && !i) {
linestate=(tokent==TOK_COMMAND?3:4);
goto restart;
} else if(c=='<' && !i && tokent==TOK_COMMAND) {
*heredocs='\n';
i=1;
while(c!='\n') {
c=inp();
if(c==EOF) Error("Unexpected end of file");
if(c&~0x7F) Error("Improper character after <<");
if(i==31) Error("Too long text after <<");
heredocs[i++]=c;
}
heredocs[i]=0;
heredoc=1;
m=n=0;
goto restart;
} else if(c=='!' && !i && tokent==TOK_COMMAND) {
if(infile!=stdin) Error("Use if <! !> while <! !> is already active");
open_pipe_for_input();
goto restart;
} else if(c=='?' && !i && tokent==TOK_COMMAND) {
set_skipping();
goto restart;
}
if(c==EOF) Error("Unexpected end of file");
if((c>='0' && c<='9') || (c>='A' && c<='Z')) {
if(c>'F') h=1;
key[i]=c;
} else if(c>='a' && c<='z') {
if(c>'f') h=1;
key[i]=c+'A'-'a';
} else if(c=='|' || c=='>') {
key[i]=0;
if(c=='>' && tokent==TOK_COMMAND && !h && i>1 && i<9) {
tokenv=strtol(key,0,16);
tokent=(tokenv>0xFF)?TOK_TRON_CHAR:TOK_CHAR;
if(tokenv>0xFF) if(InvalidTC(tokenv,0) || InvalidTC(tokenv,8) || InvalidTC(tokenv,16)) Error("Improper character code");
return;
}
if(c=='|') tokent++;
if(tokent==TOK_COMMAND_MID && !i) {
tokenv=CMD_0;
} else {
q=bsearch(&pkey,commands,sizeof(commands)/sizeof(*commands),sizeof(*commands),compare_commands);
if(!q) Error("Unrecognized command: %s",key);
tokenv=q-commands;
}
return;
}
}
Error("Improper command");
} else if(c=='>') {
Error("Syntax error");
} else if(c=='\n') {
if(linestate==2) {
linestate=0;
goto restart;
} else {
tokent=(linestate?TOK_CHAR:TOK_BLANK_LINE);
tokenv=0x20;
linestate=0;
}
} else if(c==' ') {
if(linestate!=1) goto restart;
tokent=TOK_CHAR;
tokenv=0x20;
linestate=2;
} else {
if(!(c&~0x1F)) Error("Improper character");
tokent=TOK_CHAR;
tokenv=c;
linestate=1;
}
}
static int do_include(char p) {
uint32_t s,t;
char m[0x2000];
int c;
FILE*f;
fputc(0,attrf);
fflush(attrf);
if(!attrbuf) err(2,"Memory error");
f=p?popen(attrbuf,"r"):fopen(attrbuf,"r");
if(!f) err(2,"Cannot open file: %s",attrbuf);
rewind(attrf);
while((c=fgetc(f))!=EOF) {
putchar(c);
s=fgetc(f)<<8; s|=fgetc(f);
if(feof(f)) errx(2,"Unexpected EOF in include file");
if(internalmode) putchar(IM_NORMAL);
putchar(s>>8); putchar(s);
while(s) {
t=fread(m,1,s>0x2000?0x2000:s,f);
if(!t || t>s) err(2,"Error reading include file");
fwrite(m,1,t,stdout);
s-=t;
}
s=fgetc(f)<<16; s|=fgetc(f)<<8; s|=fgetc(f);
if(feof(f)) errx(2,"Unexpected EOF in include file");
putchar(s>>16); putchar(s>>8); putchar(s);
while(s) {
t=fread(m,1,s>0x2000?0x2000:s,f);
if(!t || t>s) err(2,"Error reading include file");
fwrite(m,1,t,stdout);
s-=t;
}
}
if(p) pclose(f); else fclose(f);
return 1;
}
static void set_size_attribute(void) {
struct stat s;
fflush(attrf);
if(!attrbuf) errx(2,"Memory error");
if(stat(attrbuf,&s)) err(1,"Cannot stat");
if(!S_ISREG(s.st_mode)) Error("Stat is not regular file");
fprintf(attrf,"%llu ",(long long)s.st_size);
}
static void raw_entry(FILE*f) {
uint32_t t;
FILE*p;
char m[0x2000];
int i=0;
for(;;) {
nexttok();
if(tokent==TOK_CHAR) {
if(i>=0x1FFF) Error("Too long command in <RAW>");
m[i++]=tokenv;
} else if(tokent==TOK_COMMAND_END && tokenv==CMD_RAW) {
break;
} else {
Error("Improper token in <RAW>");
}
}
m[i]=0;
p=popen(m,"r");
if(!p) err(2,"Cannot open pipe");
while(t=fread(m,1,0x2000,p)) fwrite(m,1,t,f);
pclose(p);
}
static void raw_inline_entry(FILE*f) {
int t=fgetc(infile);
int c;
while((c=fgetc(infile))!=t && c!=EOF) fputc(c,f);
}
static void env_entry(FILE*f) {
char*s;
char m[256];
int i=0;
for(;;) {
nexttok();
if(tokent==TOK_CHAR && tokenv!='=') {
if(tokenv==' ') continue;
if(i>=255) Error("Too long command in <ENV>");
m[i++]=tokenv;
} else if(tokent==TOK_COMMAND_END && tokenv==CMD_ENV) {
break;
} else {
Error("Improper token in <ENV>");
}
}
if(s=getenv(m)) fputs(s,f);
}
static int do_block(void) {
char*q;
int bt=0;
uint32_t tt,tv,as,bs;
uint16_t plane=0;
uint16_t splane=0;
uint8_t sty=0x11;
int mode=0;
int mode2=0;
int i;
do nexttok(); while(tokent==TOK_BLANK_LINE || (tokent==TOK_CHAR && tokenv==' '));
if(tokent==TOK_EOF) return 0;
as=0;
rewind(attrf);
rewind(bodyf);
tt=tokent;
if(tt==TOK_COMMAND || tt==TOK_COMMAND_BEGIN) {
switch(tv=tokenv) {
case CMD_1: bt=0x01; break;
case CMD_2: bt=0x02; break;
case CMD_3: bt=0x03; break;
case CMD_4: bt=0x04; break;
case CMD_5: bt=0x05; break;
case CMD_6: bt=0x06; break;
case CMD_ALT: bt=0x0B; if(tt==TOK_COMMAND) Error("Attribute is required for <ALT>"); break;
case CMD_ASK: bt=0x09; break;
case CMD_BODY: if(tt==TOK_COMMAND_BEGIN) Error("Attribute not allowed for <BODY>"); if(!internalmode) Error("Not allowed in single mode"); goto tbody;
case CMD_DATA: if(tt==TOK_COMMAND_BEGIN) Error("Attribute not allowed for <DATA>"); if(!internalmode) Error("Not allowed in single mode"); break;
case CMD_INC: if(tt==TOK_COMMAND) Error("Attribute is required for <INC>"); break;
case CMD_INT: bt=0x0A; break;
case CMD_L: bt=0x08; break;
case CMD_PIPE: if(tt==TOK_COMMAND) Error("Attribute is required for <PIPE>"); break;
case CMD_SET: /* nothing to do in this case */ break;
case CMD_Q: bt=0x0C; if(tt==TOK_COMMAND_BEGIN) Error("Attribute not allowed for <Q>"); break;
case CMD_X: bt=0x0D; break;
default: goto body;
}
nexttok();
} else if(tt==TOK_CHAR || tt==TOK_TRON_CHAR) {
goto body;
} else {
Error("Improper token at beginning of block (%d;%d)",tokent,tokenv);
}
if(tt!=TOK_COMMAND_BEGIN) goto body;
attribute:
while(tokent==TOK_CHAR && tokenv==0x20) nexttok();
for(;;) {
if(tokent==TOK_CHAR) {
fputc(tokenv,attrf);
} else if(tokent==TOK_COMMAND_END && tokenv==tv) {
fflush(attrf);
if(as=ftell(attrf)) {
if(as>0xFFFF) Error("Too long attribute");
if(!attrbuf) err(2,"Memory error");
while(as && attrbuf[as-1]==' ') --as;
fseek(attrf,as,SEEK_SET);
}
if(tv==CMD_INC) return do_include(0);
if(tv==CMD_PIPE) return do_include(1);
nexttok();
goto body;
} else if(tokent==TOK_COMMAND_BEGIN && tokenv==CMD_RAW) {
raw_entry(attrf);
} else if(tokent==TOK_COMMAND_BEGIN && tokenv==CMD_ENV) {
env_entry(attrf);
} else if(tokent==TOK_COMMAND && tokenv==CMD_RAWI) {
raw_inline_entry(attrf);
} else {
Error("Improper token in attribute");
}
nexttok();
}
body:
if(tv!=CMD_X) while(tokent==TOK_CHAR && tokenv==0x20) nexttok();
for(;;) {
if(tokent==TOK_CHAR || (tokent==TOK_TRON_CHAR && !(curchset&0x70))) {
if(mode=='S') {
if(tokent==TOK_TRON_CHAR || tokenv<0x30 || tokenv>0x3B || tokenv==0x3A) Error("Improper character in SGR code");
fputc(tokenv,bodyf);
} else if(mode=='I') {
if(tokent==TOK_TRON_CHAR || tokenv<' ' || tokenv>'~') Error("Improper character in file info attribute");
if(tokenv!=' ' || mode2==1) fputc(tokenv,attrf);
if(tokenv==' ' && mode2==1) mode2=2; else if(tokenv!=' ' && !mode2) mode2=1;
} else if(curchset&0x70) {
if(tokenv>=0x20) {
fputc(tokenv,bodyf);
} else {
if(!tokenv) Error("Invalid character code");
fputc(0x10,bodyf);
fputc(tokenv+0x40,bodyf);
}
} else if(tokenv<0x20) {
Error("Invalid character code: <%lX>",(long)tokenv);
} else {
if(tokent==TOK_CHAR && tokenv!=0x20) tokenv=read_tchar(tokenv);
if((tokenv>>16)!=plane && tokenv>0xFFFF) {
plane=tokenv>>16;
for(i=plane>>16;i>=0;i--) fputc(0xFE,bodyf);
fputc(plane,bodyf);
}
if(tokenv&0xFF00) fputc(tokenv>>8,bodyf);
fputc(tokenv,bodyf);
}
} else if(tokent==TOK_COMMAND) {
switch(tokenv) {
case CMD_BR: if(bt!=0x0D || mode) goto bad; fputc(0x0A,bodyf); break;
case CMD_E: if(bt==0x0D || mode) goto bad; fputc(sty=0x13,bodyf); break;
case CMD_F: if(bt==0x0D || mode) goto bad; fputc(sty=0x14,bodyf); break;
case CMD_FIS: if(bt!=0x08 || mode) goto bad; fputc(0,attrf); fputc(0x20,attrf); set_size_attribute(); as=ftell(attrf); break;
case CMD_N: if(bt==0x0D || mode) goto bad; fputc(sty=0x11,bodyf); break;
case CMD_RAWI: raw_inline_entry(bodyf); break;
case CMD_S: if(bt==0x0D || mode) goto bad; fputc(sty=0x12,bodyf); break;
case CMD_TAB: if((bt!=0x0D && tv!=CMD_SET) || mode) goto bad; fputc(0x09,bodyf); break;
case CMD_RGR: if(bt!=0x0D || mode) goto bad; fputs("\e[m",bodyf); break;
default: bad: Error("Improper command in body (%d;%d)",tokent,tokenv);
}
} else if(tokent==TOK_COMMAND_BEGIN) {
switch(tokenv) {
case CMD_E: if(bt==0x0D || mode) goto bad; fputc(0x13,bodyf); break;
case CMD_ENV: env_entry(bodyf); break;
case CMD_F: if(bt==0x0D || mode) goto bad; fputc(0x14,bodyf); break;
case CMD_FI: if(bt<0x08 || bt>0x09 || mode) goto bad; mode='I'; mode2=0; fputc(0,attrf); fputc(0x20,attrf); break;
case CMD_FIS: if(bt!=0x08 || mode) goto bad; mode='I'; mode2=2; fputc(0,attrf); fputc(0x20,attrf); set_size_attribute(); break;
case CMD_FUR: if(bt==0x0D || mode) goto bad; fputc(0x17,bodyf); mode='F'; splane=plane; break;
case CMD_N: if(bt==0x0D || mode) goto bad; fputc(0x11,bodyf); break;
case CMD_R: if(bt==0x0D || mode) goto bad; fputc(0x16,bodyf); break;
case CMD_RAW: if(mode) goto bad; raw_entry(bodyf); break;
case CMD_S: if(bt==0x0D || mode) goto bad; fputc(0x12,bodyf); break;
case CMD_SGR: if(bt!=0x0D || mode) goto bad; fputc(0x1B,bodyf); fputc(0x5B,bodyf); mode='S'; break;
default: goto bad;
}
} else if(tokent==TOK_COMMAND_END) {
switch(tokenv) {
case CMD_E: if(bt==0x0D || mode) goto bad; fputc(sty,bodyf); break;
case CMD_F: if(bt==0x0D || mode) goto bad; fputc(sty,bodyf); break;
case CMD_FI: if(mode!='I') goto bad; fflush(attrf); as=ftell(attrf); mode=0; break;
case CMD_FIS: if(mode!='I') goto bad; fflush(attrf); as=ftell(attrf); mode=0; break;
case CMD_FUR: if(mode!='f') goto bad; fputc(0x19,bodyf); mode=0; if(splane!=plane) plane=0; break;
case CMD_N: if(bt==0x0D || mode) goto bad; fputc(sty,bodyf); break;
case CMD_R: if(bt==0x0D || mode) goto bad; fputc(0x15,bodyf); break;
case CMD_S: if(bt==0x0D || mode) goto bad; fputc(sty,bodyf); break;
case CMD_SGR: if(mode!='S') goto bad; fputc(0x6D,bodyf); mode=0; break;
default: goto bad;
}
} else if(tokent==TOK_COMMAND_MID) {
switch(tokenv) {
case CMD_0: if(mode=='F') goto mid_fur; if(!mode) goto mid_0; goto bad;
case CMD_FUR: mid_fur: if(mode!='F') goto bad; fputc(0x18,bodyf); mode='f'; if(splane!=plane) plane=0; break;
default: goto bad;
mid_0: fputc(0x02,bodyf); break;
}
} else if(tokent==TOK_EOF || tokent==TOK_BLANK_LINE) {
if(mode) Error("Unterminated subcommand");
fflush(bodyf);
if(bs=ftell(bodyf)) {
if(bs>0xFFFFFF) Error("Too long body");
if(!bodybuf) err(2,"Memory error");
if(bt!=0x0D) while(bs && bodybuf[bs-1]==' ') --bs;
}
goto done;
} else {
Error("Improper token in body");
}
nexttok();
}
done:
if(!as && !bs) return 1;
if(tv!=CMD_SET) {
if(internalmode) putchar(tv==CMD_DATA?IM_DATA:IM_NORMAL);
putchar(bt|(curchset&0xF0));
putchar(as>>8); putchar(as);
if(as) fwrite(attrbuf,1,as,stdout);
putchar(bs>>16); putchar(bs>>8); putchar(bs);
if(bs) fwrite(bodybuf,1,bs,stdout);
} else {
if(as+bs>=0x1FFF) Error("Improper <SET>");
if(!as) {
q=memchr(bodybuf,'=',bs);
if(!q) Error("Improper <SET>");
*q++=0;
setenv(bodybuf,q,1);
} else if(q=memchr(attrbuf,'=',as)) {
if(bs) Error("Improper <SET>");
*q++=0;
setenv(attrbuf,q,1);
} else {
attrbuf[as]=0;
bodybuf[bs]=0;
setenv(attrbuf,bodybuf,1);
}
}
rewind(bodyf);
return 1;
tbody: putchar(IM_BODY); return 1;
}
static void open_controlfile(const char*name) {
if(controlfile_done) return;
if(!controlfile) controlfile=fopen(name,"r+")?:fopen(name,"w+x");
if(!controlfile) err(1,"Cannot open control file");
if(regen_flag==1) return;
//TODO: read control file
}
static void im_normal(FILE*f,FILE*o) {
uint32_t s,t;
char m[0x2000];
fputc(fgetc(f),o);
s=fgetc(f)<<8; s|=fgetc(f);
if(feof(f)) errx(2,"Unexpected error");
fputc(s>>8,o); fputc(s,o);
while(s) {
t=fread(m,1,s>0x2000?0x2000:s,f);
if(!t || t>s) err(2,"Unexpected error");
fwrite(m,1,t,o);
s-=t;
}
s=fgetc(f)<<16; s|=fgetc(f)<<8; s|=fgetc(f);
if(feof(f)) errx(2,"Unexpected error");
fputc(s>>16,o); fputc(s>>8,o); fputc(s,o);
while(s) {
t=fread(m,1,s>0x2000?0x2000:s,f);
if(!t || t>s) err(2,"Unexpected error");
fwrite(m,1,t,o);
s-=t;
}
}
static void im_data(FILE*f) {
uint32_t s,t;
char m[0x2000];
fgetc(f); // unused
if(fgetc(f) || fgetc(f)) errx(2,"Unexpected error");
s=fgetc(f)<<16; s|=fgetc(f)<<8; s|=fgetc(f);
if(feof(f)) errx(2,"Unexpected error");
while(s) {
t=fread(m,1,s>0x2000?0x2000:s,f);
if(!t || t>s) err(2,"Unexpected error");
fwrite(m,1,t,dataf);
s-=t;
}
fputc(data_code,dataf);
}
static void copy_body(FILE*f) {
uint32_t s;
fflush(bodyf);
s=ftell(bodyf);
if(!bodybuf) errx(2,"Memory error");
fwrite(bodybuf,1,s,f);
rewind(bodyf);
}
static void do_one_conversion(const char*in,const char*out,int m,const char*tem) {
FILE*fi=fopen(in,"r");
FILE*fo=fopen(out,"w");
FILE*f;
pid_t x;
int d[2];
char b[64];
struct stat s;
int c;
if(verbose) fprintf(stderr,"Conversion: %s -> %s [%c] %s\n",in?:".",out?:".",m?:'-',tem?:".");
if(!fi || !fo) err(1,"Cannot open file");
if(m=='T') rewind(bodyf);
snprintf(b,32,"%u",++seqnum);
if(setenv("_seq",b,1) || setenv("_in",in,1) || setenv("_out",out,1)) err(2,"Cannot set environment variable");
if(stat(in,&s)) err(2,"Cannot stat file '%s'",in);
snprintf(b,64,"%llu",(long long)s.st_mtime);
setenv("_mtim",b,1);
snprintf(b,64,"%llu",(long long)s.st_ctime);
setenv("_ctim",b,1);
if(pipe(d)) err(2,"Cannot create pipe");
x=fork();
if(x==-1) err(2,"Cannot fork");
if(x) {
// Parent
close(d[1]);
f=fdopen(d[0],"r");
for(;;) switch(c=fgetc(f)) {
case EOF: goto eof;
case IM_NORMAL: im_normal(f,m=='T'?bodyf:fo); break;
case IM_DATA: im_data(f); break;
case IM_BODY: if(m!='t') errx(1,"Cannot use <BODY> here"); copy_body(fo); break;
case IM_TEMPLATE: m='t'; break;
default: errx(3,"Unknown error");
}
eof: fclose(f);
waitpid(x,&c,0);
if(!WIFEXITED(c) || WEXITSTATUS(c)) errx(3,"External program exit code %d",WEXITSTATUS(c));
} else {
// Child
close(d[0]);
dup2(fileno(fi),0);
dup2(d[1],1);
if(m=='T') execl("/proc/self/exe",in,"-J",tem,(void*)0);
else if(m=='E') execl("/bin/sh","/bin/sh","-c",tem,(void*)0);
else execl("/proc/self/exe",in,"-I",(void*)0);
warn("Cannot execute self");
_exit(3);
}
fclose(fi);
fclose(fo);
}
static void do_conversions_l(char*p) {
char*line=0;
size_t line_size=0;
char b[512];
FILE*f;
int i,j,n;
char*q=strchr(p,' ');
char*qa;
char*s;
char*t;
if(!q) errx(1,"Improper command in multi mode: CNVL %s",p);
*q++=0;
t=strchr(q,' ');
if(!t) errx(1,"Improper command in multi mode");
*t++=0;
qa=strchr(q,'*');
if(!qa) errx(1,"Improper CNV command");
f=popen(t,"r");
if(!f) err(2,"Cannot open pipe");
n=strlen(p);
while(getline(&line,&line_size,f)>0) {
s=line;
while(*s==' ' || *s=='\t') s++;
t=s;
while((*t&0xFF)>0x20) t++;
*t=0;
if(!*s) continue;
setenv("_name",s,1);
snprintf(b,512,"%.*s%s%s",(int)(qa-q),q,s,qa+1);
do_one_conversion(p,b,'L',0);
}
free(line);
pclose(f);
}
static void do_one_conversion_x(const char*in,const char*c) {
FILE*f;
pid_t x;
int d[2];
char b[64];
struct stat s;
int i;
snprintf(b,32,"%u",++seqnum);
if(setenv("_seq",b,1) || setenv("_in",in,1)) err(2,"Cannot set environment variable");
if(stat(in,&s)) err(2,"Cannot stat file '%s'",in);
snprintf(b,64,"%llu",(long long)s.st_mtime);
setenv("_mtim",b,1);
snprintf(b,64,"%llu",(long long)s.st_ctime);
setenv("_ctim",b,1);
if(pipe(d)) err(2,"Cannot create pipe");
x=fork();
if(x==-1) err(2,"Cannot fork");
if(x) {
// Parent
close(d[1]);
f=fdopen(d[0],"r");
if(!f) err(2,"Cannot open");
if(i=do_multi(f)) exit(i);
fclose(f);
waitpid(x,&i,0);
if(!WIFEXITED(i) || WEXITSTATUS(i)) errx(3,"External program exit code %d",WEXITSTATUS(i));
} else {
// Child
close(d[0]);
dup2(d[1],1);
execl("/bin/sh","/bin/sh","-c",c,(void*)0);
warn("Cannot execute self");
_exit(3);
}
}
static void do_conversions(char*p,int m) {
char b[512];
glob_t g={0,0,0};
int i,j,n;
char*q=strchr(p,' ');
char*pa;
char*qa;
char*s;
char*t=0;
if(!q) errx(1,"Improper command in multi mode: CNV%c %s",m?:' ',p);
*q++=0;
if(m=='E' || m=='T') {
t=strchr(q,' ');
if(!t) errx(1,"Improper command in multi mode");
*t++=0;
}
if(pa=strchr(p,'*')) {
if(m!='X') {
qa=strchr(q,'*');
if(!qa) errx(1,"Improper CNV command");
}
i=glob(p,GLOB_ERR|GLOB_NOESCAPE|GLOB_NOSORT|GLOB_MARK,0,&g);
if(i==GLOB_NOMATCH) {
warnx("No match for pattern '%s'",p);
return;
} else if(i) {
errx(2,"Glob error (%d)",i);
}
snprintf(b,512,"%u",(int)g.gl_pathc);
setenv("_glo",b,1);
n=strlen(p);
for(i=0;i<g.gl_pathc;i++) {
s=g.gl_pathv[i];
if(!s || !*s || s[(j=strlen(s))-1]=='/') continue;
snprintf(b,512,"%.*s",j-n+1,s+(pa-p));
setenv("_name",b,1);
if(m!='X') {
snprintf(b,512,"%.*s%.*s%s",(int)(qa-q),q,j-n+1,s+(pa-p),qa+1);
do_one_conversion(s,b,m,t);
} else {
do_one_conversion_x(s,q);
}
}
globfree(&g);
} else {
if(m=='X') do_one_conversion_x(p,q); else do_one_conversion(p,q,m,t);
}
}
static int do_time_env(char*p,int m) {
char*q=strchr(p,'=');
struct tm tm;
time_t ti=time(0);
char buf[256];
if(!q) return 1;
*q++=0;
if(m) gmtime_r(&ti,&tm); else localtime_r(&ti,&tm);
if(!strftime(buf,255,q,&tm)) errx(1,"Cannot convert date/time");
if(setenv(p,buf,1)) err(2,"Cannot set environment variable '%s'",p);
return 0;
}
static void do_size_env(char*p) {
char buf[32];
fflush(attrf);
snprintf(buf,32,"%lu",(long)ftell(attrf));
if(setenv(p,buf,1)) err(2,"Cannot set environment variable '%s'",p);
}
static void do_send_data(char*p) {
FILE*f;
uint32_t s;
fflush(attrf);
s=ftell(attrf);
if(!attrbuf) err(2,"Memory error");
f=popen(p,"w");
if(!p) err(2,"Cannot open pipe");
fwrite(attrbuf,1,s,f);
pclose(f);
}
static int do_multi(FILE*f) {
static const int mu[4]={'\1\0\0\0','\0\1\0\0','\0\0\1\0','\0\0\0\1'};
static const int ms[5]={'____','\0___','\0\0__','\0\0\0_','\0\0\0\0'};
char*line=0;
size_t line_size=0;
char*p;
char*q;
int c,i,m;
while(getline(&line,&line_size,f)>0) {
p=line+strlen(line);
while(p>line && (p[-1]==' ' || p[-1]=='\t' || p[-1]=='\n' || p[-1]=='\r')) *--p=0;
if(verbose) fprintf(stderr,"** %s\n",line);
if(*line=='#' || !*line) continue;
for(p=line,m=i=0;i<4;i++) {
if(p[i]==' ' || p[i]=='=' || !p[i]) break;
if(p[i]>='a' && p[i]<='z') p[i]+='A'-'a';
m+=mu[i]*p[i];
}
m+=ms[i];
if(p[i]!=' ' && p[i]!='=' && p[i]) goto bad;
p+=i+(p[i]?1:0);
switch(m) {
case 'ALL_': if(regen_flag!=1) regen_flag=strtol(p,0,10)?2:0; break;
case 'CD__': if(chdir(p)) err(1,"Cannot change directory"); break;
case 'CNV_': do_conversions(p,0); break;
case 'CNVE': do_conversions(p,'E'); break;
case 'CNVL': do_conversions_l(p); break;
case 'CNVT': do_conversions(p,'T'); break;
case 'CNVX': do_conversions(p,'X'); break;
case 'CTR_': open_controlfile(p); break;
case 'DATA': fwrite(p,1,strlen(p),dataf); fputc(data_code,dataf); break;
case 'DIV_': if(dataf!=attrf) pclose(dataf); dataf=popen(p,"w"); if(!dataf) err(2,"Cannot open pipe"); break;
case 'END_': if(dataf!=attrf) pclose(dataf); dataf=attrf; break;
case 'NOWJ': if(do_time_env(p,0)) goto bad; break;
case 'NOWZ': if(do_time_env(p,1)) goto bad; break;
case 'REW_': rewind(attrf); break;
case 'SEND': do_send_data(p); break;
case 'SEQ_': seqnum=strtol(p,0,10); break;
case 'SET_': q=strchr(p,'='); if(!q) goto bad; *q++=0; if(setenv(p,q,1)) err(2,"Cannot set environment variable '%s'",p); break;
case 'SIZE': do_size_env(p); break;
case 'SYS_': i=system(p); if(i==-1) err(1,"Cannot execute external program"); if(i=WEXITSTATUS(i)) errx(1,"External program exit code %d",i); break;
case 'TERM': data_code=strtol(p,0,16); break;
default: bad: errx(1,"Improper command in multi mode: %s",line);
}
}
free(line);
return 0;
}
static void chmod_auto(char*s) {
char*p=strrchr(s,'/');
int c;
if(p) {
c=p[1];
p[1]=0;